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Home My WebLink About48 Drainage Report Kroger SW 361.. ' ' . DRAINAGE REPORT KROGER SW 361 CLR Job No: 98-057-00 SH 6 AND ROCK PRAIRIE COLLEGE STATION , TEXAS JULY, 1999 \\CAD_SERVER\WORK\WORK\98-057-00\DRAINAGE REPT.DOC NARRATIVE APPENDIX TABLE OF CONTENTS INTRODUCTION EX ISTING CONDITIONS PROPOSED CONDITIONS LOCATION MAP CALCULATIONS DRAINAGE CALCULATIONS DRAINAGE AREA MAP [TxDOT F471 (32)] \\CAD_ SERVER\WORK\WORK\98-057-00\DRAI NAGE REPT .DOC NARRATIVE INTRODUCTION The project site is a rectangular shaped tract of approximately 12.466 acres located in College Station, Texas, lying west of the intersection of State Highway 6 and Rock Prairie and described as Lot 1, Block Two of L.O. Ball Memorial Subdivision Phase II. The project includes construction of underground utilities, parking facilities, and a grocery store . A storm water management system will be constructed to manage runoff from the proposed facility and area draining through or across the project site. In addition to the parking and storm water management facilities, landscaping will be added in accordance with local requirements to mitigate any adverse affects produced by the development and enhance the aesthetic appeal of the area. EXISTING CONDITIONS The site is currently vacant. The site is bordered to the north by Rock Prairie Road, to the west by Longmire Drive (Proposed), the east by State Highway 6 and the south by Birmingham Street. The entire site is clear and covered wild grasses. The soil type is described as firm clayey/silty sand and sandy silt from 0-2 feet below grade by the Geotechnical Investigation prepared by Kenneth E. Tand & Associates, Inc. The property is included in the drainage design for State Highway No . 6 as part of Drainage Area No. 1-A and 1-D. The Drainage Area Map for TxDOT Project No F4 71 (32) indicates that the existing drainage system was designed to accommodate a discharge rate of 83 cfs from Drainage Area No. 1-D (see Appendix). The site currently drains to the southwest towards Birmingham and SH 6 . The site currently drains via sheet flow to the Birmingham Street and across the S.H. 6 frontage road into the existing drainage ditch. The TxDOT drainage system eventually discharges to Lick Creek. PROPOSED CONDITIONS The project includes construction of a stormwater management system to manage storm water runoff from the proposed facility . The site will be graded to direct the runoff generated by the proposed development to an internal site drainage system connected to on site detention ponds. The proposed on-site drainage system will improve the existing conditions by providing on site detention, limiting the discharge rate and providing a dedicated conveyance system to route the flow under the frontage road . The on site drainage system is designed to provide a detention storage volume of 1.74 \\C AD_SERVER\WORK\WORK\98-057 -00 \DRAINAGE REPT .DOC acre-feet and a discharge rate of 29.08 c.f.s . The proposed discharge rate (29.08 c.f.s .) is less than half of the allowable discharge rate (83 c.f.s.) for this site. During construction, measures will be taken to control erosion and sedimentation in accordance with the requirements of the current NPDES permit. The Stormwater Pollution Prevention Plan and Best Management Practices report include detailed instructions to the contractor in this regard. \\CAD_ SERVER\WORK\WORK\98-057-00\DRAINAGE REPT .DOC APPENDIX \\CAD_ SERVER\WORK\WORK\98-057-00\DRAINAGE REPT .DOC r ·· x l Kroger SW 361 College Station, TX . -. I Mag 14 .00 'Wed Jun 0917:50 1999 I , Scale 1 :31,250 (at center) 2000 Feet 1000 Meters .... , .. -. -- --Secondary SR, Road, Hwy Ramp -Major Connector -State Route 5pri.!!$--Primary State Route Utility -+--+-Ra ilroad Population Center I . . . CALCULATIONS The weighted runoff coefficient "c" for the overall project is calculated at 0.82. Runoff Coefficient "c"" Area 10. 78 ac impervious site 1.68 ac pervious 12.46 ac total \\CAD_ SERVER\WORK\WORK\98-057-00 \DRAINAGE REPT .DOC 0.9 0.3 DRAINAGE REPORT ROCK PRAIRIE CROSSING SHOPPING CENTER CLR Job No: 98-057 -00 SH 6 AND ROCK PRAIRIE COLLEGE STATION, TEXAS August, 1999 \\CAD_SERVER\WORK\WORK\98-057 -00\DRAINAGE REPT (REVISED 8-26-99).DOC CERTIFICATION I hereby certify that this report (plan) for the drainage design of Rock Prairie Crossing Shopping Center was prepared by under my supeNision in accordance with the provisions of the City of College Station Drainage Policy and Design Standards for the owners thereof. F.H. Radford, II (/ State of Texas tNo. 61636 F :\WORK\98-057-00 \DRAINAGE REPT (REVISED 8-26-99).DOC NARRATIVE TABLE OF CONTENTS CERTIFICATION GENERAL LOCATION AND DESCRIPTION DRAINAGE BASINS AND SUB-BASINS DRAINAGE DESIGN CRITERIA DRAINAGE FACILITY DESIGN CONCLUSIONS REFERENCES APPENDIX LAND USE STORM SEWER CAPACITY (2, 5, 10, 25, 50 & 100 year) DRAINAGE AREA MAP [TxDOT F471 (32)) \\CAD_SERVER\WORK\WORK\98-057-00\DRAINAGE REPT (REVISED 8-26-99).DOC NARRATIVE GENERAL LOCATION AND DESCRIPTION Location. The site is bordered to the north by Rock Prairie Road, to the west by Longmire Drive, the east by State Highway 6 and the south by Birmingham Street. No public streets are proposed within the development. The primary drainage system drainageway appear to be North Fork Lick Creek as indicated on Figure 11-3 of the Stormwater Management Plan for the City of College Station Drainage Policy and Design Standards (Drainage Policy). The only development immediately adjacent to the site is an existing bank located at the southwest corner of Rock Prairie and SH 6 . Description of Property. The subject property consists of approximately 12.4 7 acres. The existing land cover is grass. The existing drainageway within the property is sheet flow to the Birmingham and SH 6 rights of way. The general project description is: The construction of a shopping center to include a grocery store, retail and restaurant facilities; construction of a concrete parking lot; construction of a storm water management system to manage and convey storm water runoff from the proposed facilities; construction of a public water line and the construction of a private sanitary sewer line. In addition, landscaping will be added in accordance with local requirements to mitigate any adverse affects produced by the development and enhance the aesthetic appeal of the area. DRAINAGE BASINS AND SUB-BASINS Primary Basin Description. The site appears to be included within the boundary of the Lick Creek and Minor Tributaries basin as indicated on Figure 11-3 of the Drainage Policy . The site appears to be located within the boundary of F.l.R. M. Panel No. 48041 C0205C. The property is included in the drainage design for State Highway No. 6 as part of Drainage Area No. 1-A and 1-D. The Drainage Area Map for TxDOT Project No F4 71 (32) indicates that the existing drainage system was designed to accommodate a discharge rate of 83 cfs from Drainage Area No. 1-D (see Appendix). Secondary Drainage Description. The offsite drainage flows south to North Fork Lick Creek through the existing drainage system for SH 6. The proposed development should have no impact on existing pathways to the Primary Drainage System since the proposed peak discharge rate is less than the design discharge rate as indicated on the Drainage Area Map for TxDOT Project No F471 (32). DRAINAGE DESIGN CRITERIA Regulations. The drainage design is based on rational formula in accordance with Section 111.B. of the Drainage Policy. Development Criteria Reference and Constraints . A previous drainage study was prepared to design the drainage system for SH 6 and established an allowable discharge \\CAD_SERVER\WORK\WORK\98-057-00\DRAINAGE REPT (REVISED 8-2.6-99).DOC rate of 83 cfs for the subject property using a c factor of 0.8. The drainage impact on the adjacent streets should be improved since the development will provide a dedicated conveyance system under the SH 6 frontage road in lieu of the existing sheet flow over the road. Hydrological Criteria. The storm sewer des ign is based on the rational method using the rainfall criteria as established by Weather Bureau (NWS) Technical Paper No. 40 for the 2 , 5, 1 O 25 , 50 and 100 year design storms using a c factor of 0.9 . The actual c factor for the site is 0.82 , comparable to that used in the TxDOT analys is . Hydraul ic Criteria . The capacity of the on site detention facilities provided for the project approximately 75, 635 c.f. The storm water management system is designed to provide incidental detention in the parking area and in the detention areas located adjacent to Birmingham to accommodate the portion of the site , if any , that was not included in the original drainage design for SH 6. DRAINAGE FACILITY DESIGN General Concept. The drainage concept is consistent with the Drainage Policy, which states "The policy of the city is to encourage the rapid conveyance of stormwater through and out of the City within the primary system ." The site currently discharges via sheet flow over the adjacent roadways and into the SH6 drainage system . The installation of internal site drainage, detention facilities and a dedicated outfall structure will improve the existing drainage conditions . The anticipated drainage pattern will be sheet flow to the inlets proposed for the site, conduit flow through the site and under the SH 6 frontage road to the existing TxDOT drainage system and eventually to North Fork Lick Creek. Specific Details . The drainage problem encountered is the existing sheet flow over the adjacent roadways causing hazardous driving conditions to motorists in the TxDOT and City of College Station rights-of-ways. The solution to this problem is to design a dedicated conveyance system that will direct the stormwater runoff from the site under the adjacent roadways thereby reducing the possibility of high water in the roadway during extreme rainfall events that subsequently cause traffic hazards in the TxDOT and the City of College Station rights-of-ways. CONCLUSIONS Compliance with Design Standards . The drainage concept is consistent with the Drainage Policy, which states "The policy of the city is to encourage the rapid conveyance of stormwater through and out of the City within the primary system ." Effect iveness of drainage design to control damage from stormwater flows. The proposed drainage design will better control damage to the adjacent roadways than the existing situation by routing the stormwater under the roadway. The proposed drainage design will also control damage to the outfall ditch since the proposed discharge rate is significantly lower than the allowable . \\CAD_SERVER\WORK\WORK\98-057-00\DRAINAGE REPT (REVISED 8-26-99).DOC Explanation of the effectiveness of existing and proposed improvements with regard to controlling the discharges of the 100 year storm with ultimate development conditions of the secondary system basins affected by the proposed development. The existing conditions are very ineffective since the 100 year storm merely sheet flows across the adjacent roadways and causing flooding. The proposed system will route the runoff generated by the 100 year storm under the roadway at a rate less than that originally designed for. \\CAD_SERVER\WORK\WORK\98-057-00\DRAINAGE REPT (REVISED 8-26-99).DOC REFERENCES Stormwater Management Plan for the City of College Station Drainage Policy and Design Standards State Department of Highways and Public Transportation Bridge Division Hydraulic Manual TxDOT Project No F471 (32) \\CAD_SERVER\WORK\WORK\98-057-00\DRA INAGE REPT (REVISED 8-26-99).DOC APPENDIX \\CAD_SERVER\WORK\WORK\98-057-00\DRAINAGE REPT (REVISED 8-2?-99).DOC LAND USE The weighted runoff coefficient "c" for the overall project is calculated at 0 .82. Runoff Coefficient "c"" Area 10.78 ac impervious site 1.69 ac pervious 12.4 7 ac total 0.9 0.3 \\CAD_SERVER\WORK\WORK\98-057-00\DRAINAGE REPT (REVISED 8:26-99).DOC DRAINAGE REPORT ROCK PRAIRIE CROSSING SHOPPING CENTER CLR Job No: 98-057-00 SH 6 AND ROCK PRAIRIE COLLEGE STATION, TEXAS September, 1999 \\CAD_SERVER\WORK\WORK\98-057-00\DRAINAGE REPT (REVISED 9-21-99).DOC TABLE OF CONTENTS NARRATIVE CERTIFICATION GENERAL LOCATION AND DESCRIPTION DRAINAGE BASINS AND SUB-BASINS DRAINAGE DESIGN CRITERIA DRAINAGE FACILITY DESIGN CONCLUSIONS REFERENCES APPENDIX LAND USE LOT COVERAGE PRE-DEVELOPED RUNOFF CALCULATIONS DETENTION VOLUME CALCULATIONS DETENTION STORAGE AREAS DRAINAGE CALCULATIONS STORM SEWER CAPACITY (2, 5, 10, 25, 50 & 100 year) TRIANGULAR HYDROGRAPHS (2, 5, 10, 25, 50 & 100 year) 24-HOUR STORM ROUTING (2, 5, 10, 25, 50 & 100 year) 60-MINUTE STORM ROUTING (2, 5, 10, 25, 50 & 100 year) DRAINAGE AREA MAP [TxDOT F471 (32)) DOWNSTREAM IMPACT CALCULATIONS \\CAO_SERVER\WORK\WORK\98-057-00\0RAINAGE REPT (REVISED 9-21 -99).00C CERTIFICATION I hereby certify that this report (plan) for the drainage design of Rock Prairie Crossing Shopping Center was prepared under my supervision in accordance with the provisions of the City of College Station Drainage Policy and Design Standards for the owners thereof. F.H. Radford, Ill State of Texas o. 61636 \\CAD _SERVER\WORK\WORK\98-057-00\DRAINAGE REPT (REVISED 9-21 -99).DOC NARRATIVE GENERAL LOCATION AND DESCRIPTION Loca ti on . The site is bordered to the north by Rock Prairie Road , to the west by Longmire Drive , the east by State Highway 6 and the south by Birmingham Street. No public streets are proposed within the development. The primary drainage system drainageway is North Fork Lick Creek as indicated on Figure 11-3 of the Stormwater Management Plan for the City of College Station Drainage Policy and Design Standards (Drainage Policy). The only development immediately adjacent to the site is an existing bank located at the southwest comer of Rock Prairie and SH 6. Description of Property. The subject property consists of approximately 12.4 7 acres . The existing land cover is grass . The existing drainageway within the property is sheet flow to the Birmingham and SH 6 rights of way. The general project description is: The construction of a shopping center to indude a grocery store, retail and restaurant facilities; construction of a concrete parking lot; construction of a storm water management system to manage and convey storm water runoff from the proposed facilities; construction of a public water line and the construction of a private sanitary sewer line. In addition, landscaping will be added in accordance with local requirements to mitigate any adverse affects produced by the development and enhance the aesthetic appeal of the area. DRAINAGE BASINS AND SUB-BASINS Primary Basin Description. The site is included within the boundary of the Lick Creek and Minor Tributaries basin as indicated on Figure 11-3 of the Drainage Policy. The site is located within the boundary of F.l.R. M. Panel No . 48041C0205C. The property is induded in the drainage design for State Highway No . 6 as part of Drainage Area No. 1-A and 1-D. The Drainage Area Map for TxDOT Project No F471(32) indicates that the existing dra inage system was designed to accommodate a discharge rate of 83 cfs from Drainage Area No. 1-D (see Appendix). Secondary Drainage Description. The offsite dra inage flows south to North Fork Lick Creek through the existing drainage system for SH 6. Based on the Primary Basin criteria referenced above, the proposed development represents an allowable impact on existing pathways to the Primary Drainage System. The on-site detention provided exceeds the computed volume required by the pre-development and post-development hydrographs. The proposed peak discharge rate is less than the design discharge rate indicated on the Drainage Area Map for TxDOT Project No F4 71 (32). DRAINAGE DESIGN CRITERIA Regulations . The criteria for the drainage design was selected from Section Ill of the Drainage Policy and includes : the rational formula (Section 111.B .), the Soil Conservation Service Type II rainfall distribution (Section 111.C .3.) and the Triangular Approx imation \\CAD _SE RVER \WORK\WORK\98-057-00 \DRAINAGE REPT (REVISED 9-21 -99).00C hydrograph (Section 11 1.D). Development Criteria Reference and Constraints. A previous drainage study was prepared to design the drainage system for SH 6 and established an allowable discharge rate of 83 cfs for the subject property using a C factor of 0.8. The sheetflow impact on the adjacent streets is reduced since the development will provide a dedicated conveyance system under the SH 6 frontage road in lieu of the existing sheet flow over the road . Even though an allowable discharge rate has been established by TxDOT Project No F471(32), the existing pre-developed peak discharge was calculated to be 40.36 cfs. Hydrological Criteria . The pre-developed peak discharge was determined using the rational method, a 100 year return period and TP No. 40 . Detention volumes were estimated using a 1-hour design storm , a 24-hour design storm and the triangular approximation hydrograph . Hydraulic Criteria. The capacity of the on-site detention facilities provided for the project is approximately 85,458 c.f. The storm water management system is designed to provide detention in the parking area and in the detention areas located adjacent to Birmingham. The storm sewer design is based on the rational method using the rainfall criteria as established by Weather Bureau (NWS) Technical Paper No . 40 for the 2, 5; 1 O 25, 50 and 100 year design storms. A relationship was established between the design storm intensity and the effective intensity to account for the on-site detention storage provided. The effective intensity established by the design water surface elevation of the various on pavement and in pond detention areas. The effective intensity was used to determine the hydraulic gradient for the internal site drainage system . Even though the peak discharge from the site is less than that originally designed for the TxDOT system, the downstream structure at SH6 and North Fork Lick Creek was analyzed for the ability to convey the additional discharge from the site. The increase to the hydraulic gradient at the structure was calculated to be 0.0007 feet (see Downstream Impact Calculations in the Appendix). Based on the calculations in the Appendix, the impacts to the downstream system resulting from this development will be an increase of 0.0007 feet to the hydraulic gradient. DRAINAGE FACILITY DESIGN General Concept. The drainage concept is consistent with the City of College Station Drainage Policy and detention will be provided based on the triangular approximation hydrograph method in accordance with Section 111 .2 . The site currently discharges via sheet flow over the adjacent roadways and into the SH6 drainage system. The installation of internal site drainage, detention facilities and a dedicated outfall structure will improve the existing drainage conditions . The anticipated drainage pattern will be sheet flow to the inlets and detention areas, conduit flow through the site and under the SH 6 frontage road to the existing TxDOT drainage system . Specific Details . The on-site detention system was designed in accordance with Sections Ill and IX of the Drainage Policy . The detention storage volume was calculated using 3 \\CAD_SERVER\WORK\WORK\98-057-00\DRAINAGE REPT (REVISED 9-21-99).DOC methods, the triangular approximation hydrograph, a 1-hour storm using the rational formula and the IDF Curves, and a 24-hour storm using the Soil Conservation Service Type II rainfall distribution. The results of the detention analysis are listed below . Design Storm Triangular Hydrograph IDF Curves SCS Type II 36 ,055 C .F. 28,746 C .F. 0 43 ,505 C .F. 35,649 C .F. 2 ,650 C .F. 48,635 C .F. 40,464 C .F. 9,095 C .F. 55,450 C .F. 46,426 C .F. 15,483 C .F. 62,570 C .F. 52,721 C.F . 14 ,748 C.F . 65,400 C.F . 55,019 C.F . 27,607 C .F. The drainage problem encountered is the existing sheet flow over the adjacent roadways causing hazardous driving conditions to motorists in the TxDOT and City of College Station rights-of-ways. The solution to this problem is to design a dedicated internal collection system that will convey the stormwater runoff from the site under the adjacent roadways, thereby reducing the possibility of high water in the roadway during extreme rainfall events that subsequently cause traffic hazards in the TxDOT and the City of College Station rights-of-ways. CONCLUSIONS Compliance with Design Standards. The methods used in designing the drainage system are consistent with the City of College Station Drainage Policy and Design Standards. Effectiveness of drainage design to control damage from stormwater flows. The proposed drainage design will better control sheetflow impacts on the adjacent roadways, improving the existing situation by routing the stormwater under the roadway and providing on-site detention storage. The proposed drainage design will also control the impact on the outfall ditch since the proposed discharge rate is significantly lower than the allowable . Explanation of the effectiveness of existing and proposed improvements with regard to controlling the discharges of the 100-year storm with ultimate development conditions of the secondary system basins affected by the proposed development. The existing conditions are very ineffective since the 100-year storm merely sheet flows across the adjacent roadways causing flooding . The proposed system will route the runoff generated by the 100- year storm under the roadway at a rate less than that originally designed. The site is also designed to provide on-site detention storage for the 100-year and smaller events. \\CAD_SERVER\WORK\WORK\98-057-00\DRAINAGE REPT (REVISED 9-21-99).00C REFERENCES Stormwater Management Plan for the City of College Station Drainage Policy and Design Standards State Department of Highways and Public Transportation Bridge Division Hydraulic Manual TxDOT Project No F471(32) \\CAD_SERVER\WORK\WORK\98-057-00\DRAINAGE REPT (REVISED 9-2 1-99).DOC LAND USE The weighted runoff coefficient "c" for the overall project is calculated at 0 .82 . Runoff Coefficient "c"" Area 10 .78 ac impervious site 1.69 ac pervious 12.47 ac total 0 .9 0.3 \\CAD_SERVER\WORK\WORK\98-057-00\DRAINAGE REPT (REVISED 9-21-99).DOC APPENDIX \\CAO_SERVER\WORK\WORK\98-057-00\0RAINAGE REPT (REVISED 9-21 ·99).00C Coe"-~A e .2 ·--. ---~~ ----- (J 0 ~ --' ,J .-', ...,_..._.-___ . -· -·-__ 1_3 ~'.'..? ~~-·)·~------ - _____ t=:'e£::-.. D::.""lc~9_!?.L;.-Q _ Kv_>)__rz_r-:F~- ----------------------------------------- -·------------- 1 :'Yo : ' r-i.34?! \ .L _____________ : __ -_________ -;. ~3-~Cs_cr9l_G2:_.41_\__ __ _ 1. ---·-----/1 --------- - -----------~----- ----------------------------- ______ _._4-..>-<.o~& Ct S --··----------- ---------- -------------- ----·-- I 'E c~lC. P~i-.~~ c;Ros.S.1~ __ k..µC.cc¥ _ ~-~e{:,_E _Fr".~ . -jf _--- D r=..!_;:."171 'J._J.J __ Jq_~-~~-0 c.~. k-d------------------- __ 7._o_t.J_D __ ,_. _c=~_8'_,_IJ~D=---c~~l2.o~4_D<-~·---j~--TO~_p~ ______ 6.._.,~4-_00 s 'i:, ____ _Z:!l_B_._I ------'-- ---------------------- \ z --- I .~ -~~----'-s---'~.za~_o ___ ~---~1 ~~·~~~~=-'--------'~'~'~o_q~3'°--~c~·~r-._. ____ _ • ' : I ' ______________________ _3 ____________ _J_&.,_(4_3i3-__ ~ --~o~·~:<Po"________ 3,32-1 cF · ______ ___________ 4 _.5-. 43_g__ '. a.~Q' _____________ i-L o B ~<::_:_,;-. -----~~ /8, B 3 z ____ 0~·~3_5'"_' _ --2+13 I <:. P. ----· ___________ w_ _l5", 3'1 I _______ z. q' . 11--1 es~ <:..;::: ____ _ ----·----·--~------··· ---. --. "8 7 1 ~ T { C. F, -· ·-. ----------·-· .. ------.. --- c. ~ Disc h arge • ;;-(cfs) .,. 0 . .. ... .... N ... .... 120 ~ ... ... ... .. ... "' °' .. 110 .. :z: ... ... ., 0 a ., . .., . 100 7 N -ii. c a 90 80 70 60 50 J \ / bQST-[ EVELO! MENT -iYDROC RAP H /-\ r STORAt;E VOLJME -36,05~ CF 40 30 20 10 r · , ..... · .. \ ·:·.· <·:-_·: '~· .·.\ rPRE-DEVELOPMEN H YDROGRAPH f : .. _··v-··· ~ / .. ·-:. . \ "~ .. / 1 """'- f-.. ·:· · .... , I .... · ... : . ·-~ ·. . . . ··. . .. I\ t =o 10 20 30 40 50 60 Ti me (m in.) 2 -YEAR Discharge ( cfs) 0 "' .... N "' .... 120 ~ "' "' "' 0 "' "' "' N 110 .... ::c '< ... .., 0 .. .., • .,, 100 ,,. "' -i.. c .. 90 80 I 70 60 I ·. \ I \; -POST-'"DEVEL DPMENl HYOR( >GRAPH ( I .. . \ 50 r.·· ·····.··.·\,-STORA GE VOL JME -43,50!: CF t" ·: .. :·<.\ . ·.·. 40 /. . : . .. , f · ... ·.· ·.. . . • • .t. \ 30 l ·.:. ·. ·.··. ···: \ .. . . . . . ··. · .. I ' ·.·. ... .. 20 10 . . .. /. .. · .. I ·.··~ /PR :-DEVE LOP ME JT HYO . ~ ... ' " / ..... v \"< ... ~ . . . , .. -.:..·/ \ v \ ~ \ . !'.... ROGRAPH t=o 10 20 30 40 50 60 Ti me (min .) 5 -YEAR ' "-:;: Discharge ~ • ~ ( cfs) tr 0 . = ... .... N "' I .... 120 -... ... ... = ... "' ... "' 110 ... :z: "' ... ., 0 Cl ., • ,, 100 :r --"' Q. I[ • 90 \ 80 70 60 50 .j \ /.. . \ ~. \ I 1 \/ v--POSl -DEVEi OP MEN T HYDF OGRAP t> · .. · . \ .. .:\ l >· . ···.·. ·.,y --STOR A.GE vc LUME :: 48,6~ 5 CF I I ... · ... / •\ : . . ·.\ .. . . . .. . .. · H 40 30 20 10 ,. ...... .. .. / ·· · ... ·.· ·.. . . .\ I • ·• . . .:. · ... ·. . . . . . . -·~ · .. · ... \ 1-.. .. r ·y .. \ . . . -: ~ /Pl >E-DE\ :LOPME NT HYO . . . · .. ... I .. : /-..... ·. v ' ~-\ , ·; y \ ~ I ' ROGRAPH t=o 10 20 30 40 50 60 Time (min.) 10 -YEAR ' "-! Discharge ~ ; ~ (cfs) 0 IT 0 .. C> .., .... N ... .... 120 -.., .., .., C> .., ... UI ... 110 ... :z: '< Cl. ., 0 c .., . ,, ,. 100 N UI ~ Q. \ "' • 90 L\ 1 \ 80 70 r ·:.\ .. I ... \ rPOS '"-DEVE .... OPME~ T HYO ~OGRAP I "\ J r ··.Y ·.·· .. ·. H 60 r.: . · ...... \ I .. . . \ 50 r -_·. . "!. "\ rSTO ~AGE 'v OLUME 55,-' 50 CF .. ·.· -. . . . . ·: · . .I 1 ·' . · ... ·' . . . . ·. •:. .. . :· .. · · .. 40 l . . : . .\ , .. · ... ·.· ·. . . ..\ . ·. . . .: . 30 20 10 I · . .". · ... :./\ ~-.. \ · .. . . . . · ... .. ·· . -1 • :, 7 ~ /F IELOPM :::NT ... RE-DE HY f ... · .. . . . f J \ """ ' I .. -.:_ \ ' v \ ~ \ \.. DROGRAPH t=o 10 20 30 40 50 60 Time (min.) 25 -YEAR ~ 0.. :: Discharge • ~ ( cfs) IT 0 . "' "' .... N ... .... 120 ~ "' "' "' "' "' ... .... ~ 110 N :>: /\ "' ... ., 0 .. ., . "' 100 7 .... . . e Q. I: .. 90 80 ·: .. PO T-DEV LOPM NT HY ROGRAPH 70 .·· .. · .. 60 . . .· .. 50 {.:: ._ .. ::.···.-.. ·:.:. :. STO AGE OLUME -62, 70 CF / -: ... ·· .... · .. ·:\ . ·.·· ·: .... :-. :.· · ... . . . . . 40 ~ ·. . . . . . . . · .. 30 . · ... ·.· .. 20 I ... · ·.· t · _ ..... · 10 t=o 10 20 30 40 50 60 Time (min.) 50 -YEAR ;:. ~ Di scharg e ~ ; ;;-(c f s) rr 0 .. C> "' ..... N ... ..... 120 -"' "' "' C> "' ... "' N 110 C> :z: ... ... ., 0 G ., • .,, 100 " --C> ~ i.. c .. 90 ... ! . . .. ·: .·: .. 80 .·. . "\ ., .. . : . · .. : . . . . .. 70 . . .·· ... . . . 60 I . . . ~ .~.· . : . :'. . . . . . . . . STO AGE V LUME 65,4 0 CF 50 40 30 I .. :·.· ... : . . :: . ' .· ..... I .. ·.·. . .. ...... . . PRE-EVELO MEN T HYDROGRAPH 20 10 t=o 10 20 30 40 50 60 Time (m in.) 100 -YEAR Project: Kroger -College Station - 2 Yr/24 Hr Detention Calculations CLR Job No: 98-057-00 24 Hour Rainfall Depth: 4 .50 inches Drainage Area (A): 12.47 AC Runoff Coefficient ( c ): 0 .82 Allowable Discharge: 21 .36 CFS Rainfall Intensity (i): Varies HOUR SCS TYPE II RAINFALL (1) RUNOFF (cl) RUNOFF VOL. ALLOWABLE INCREMENT AL CUMULATIVE DIST. DISCHARGE VOL. STORAGE STORAGE (in} (CFS/AC} (CF} (CF} (CF} (CF} 0 .01 0 .05 0 .0369 1657 76901 0 0 2 0 .023 0 .06 0 .04797 2153 76901 0 0 3 0.035 0.05 0.04428 1988 76901 0 0 4 0 .048 0 .06 0.04797 2153 76901 0 0 5 0 .064 0 .07 0 .05904 2650 76901 0 0 6 0 .08 0 .07 0 .05904 2650 76901 0 0 7 0 .1 0.09 0.0738 3313 76901 0 0 8 0 .12 0 .09 0 .0738 3313 76901 0 0 9 0 .147 0.12 0 .09963 4473 76901 0 0 10 0 .181 0 .15 0 .12546 5632 76901 0 0 11 0 .236 0 .25 0.20295 9111 76901 0 0 12 0 .663 1.92 1.57563 70733 76901 0 0 13 0 .776 0 .51 0.41697 18719 76901 0 0 14 0 .825 0 .22 0.18081 8117 76901 0 0 15 0 .856 0 .14 0 .11439 5135 76901 0 0 16 0.881 0 .11 0 .09225 4141 76901 0 0 17 0.903 0 .10 0 .08118 3644 76901 0 0 18 0 .922 0 .09 0 .07011 3147 76901 0 0 19 0 .938 0.07 0 .05904 2650 76901 0 0 20 0 .953 0.07 0 .05535 2485 76901 0 0 21 0 .965 0 .05 0.04428 1988 76901 0 0 22 0 .977 0 .05 0.04428 1988 76901 0 0 23 0 .989 0 .05 0.04428 1988 76901 0 0 24 1 0 .05 0 .04059 1822 76901 0 0 Total 4 .50 9/22/99SCS Type II (2 YR).xls Project: Kroger -College Stat ion - 5 Yr/24 Hr Detention Calculations CLR Job No: 98 -057-00 24 Hour Rainfall Depth: 6 .20 inches Drainage Area (A): 12.47 AC Runoff Coefficient ( c ): 0 .82 Allowable Discharge: 26 .33 CFS Rainfall Intensity (i): Varies HOUR SCS TYPE II RAINFALL (i) RUNOFF (ci) RUNOFF VOL. ALLOWABLE INCREMENT AL CUMULATIVE DIST. DISCHARGE VOL. STORAGE STORAGE {in} {CFS/AC} {CF} {CF} {CF} {CF} 1 0 .01 0 .06 0 .05084 2282 94805 0 0 2 0.023 0 .08 0 .066092 2967 94805 0 0 3 0.035 0.07 0.061008 2739 94805 0 0 4 0.048 0.08 0.066092 2967 94805 0 0 5 0 .064 0 .10 0.081344 3652 94805 0 0 6 0.08 0 .10 0.081344 3652 94805 0 0 7 0.1 0.12 0.10168 4565 94805 0 0 8 0 .12 0.12 0.10168 4565 94805 0 0 9 0.147 0 .17 0.137268 6162 94805 0 0 10 0 .181 0.21 0.172856 7760 94805 0 0 11 0 .236 0.34 0.27962 12553 94805 0 0 12 0 .663 2.65 2 .170868 97455 94805 2650 2650 13 0.776 0.70 0.574492 25790 94805 0 0 14 0 .825 0 .30 0.249116 11183 94805 0 0 15 0.856 0 .19 0.157604 7075 94805 0 0 16 0.881 0 .16 0.1271 5706 94805 0 0 17 0.903 0.14 0.111848 5021 94805 0 0 18 0.922 0 .12 0 .096596 4336 94805 0 0 19 0 .938 0 .10 0.081344 3652 94805 0 0 20 0 .953 0.09 0.07626 3423 94805 0 0 21 0.965 0.07 0.061008 2739 94805 0 0 22 0 .977 0 .07 0 .061008 2739 94805 0 0 23 0 .989 0 .07 0 .061008 2739 94805 0 0 24 0 .07 0.055924 2511 94805 0 0 Total 6.20 9/22/99SCS Type II (5 YR).xls Project: Kroger -College Station -10 Yr/24 Hr Detention Calculations CLR Job No: 98-057-00 24 Hour Rainfall Depth: 7.40 inches Drainage Area (A): 12.47 AC Runoff Coefficient ( c ): 0.82 Allowable Discharge: 29 .78 CFS Rainfall Intensity (i): Varies HOUR SCS TYPE II RAINFALL (i) RUNOFF (ci) RUNOFF VOL. ALLOWABLE INCREMENTAL CUMULATIVE DIST. DISCHARGE VOL. STORAGE STORAGE {inl {CFS/ACl {CFl {CF} {CFl {CFl 1 0 .01 0.07 0 .06068 2724 107222 0 0 2 0 .023 0 .10 0.078884 3541 107222 0 0 3 0 .035 0.09 0 .072816 3269 107222 0 0 4 0 .048 0 .10 0.078884 3541 107222 0 0 5 0 .064 0 .12 0 .097088 4358 107222 0 0 6 0 .08 0 .12 0.097088 4358 107222 0 0 7 0 .1 0.15 0.12136 5448 107222 0 0 8 0.12 0.15 0.12136 5448 107222 0 0 9 0 .147 0 .20 0.163836 7355 107222 0 0 10 0 .181 0.25 0.206312 9262 107222 0 0 11 0 .236 0.41 0.33374 14982 107222 0 0 12 0 .663 3 .16 2.591036 116317 107222 9095 9095 13 0 .776 0 .84 0.685684 30782 107222 0 0 14 0.825 0.36 0.297332 13348 107222 0 0 15 0 .856 0.23 0.188108 8445 107222 0 0 16 0 .881 0 .19 0 .1517 6810 107222 0 0 17 0.903 0.16 0 .133496 5993 107222 0 0 18 0 .922 0.14 0.115292 5176 107222 0 0 19 0 .938 0 .12 0 .097088 4358 107222 0 0 20 0.953 0.11 0 .09102 4086 107222 0 0 21 0.965 0.09 0.072816 3269 107222 0 0 22 0 .977 0 .09 0 .072816 3269 107222 0 0 23 0 .989 0.09 0.072816 3269 107222 0 0 24 1 0 .08 0.066748 2996 107222 0 0 Total 7.40 9/22/99SCS Type II (10 YR).xls Project: Kroger -College Station -25 Yr/24 Hr Detention Calculations CLR Job No: 98-057-00 24 Hour Rainfall Depth: 8.80 inches Drainage Area (A): 12.47 AC Runoff Coefficient ( c ): 0 .82 Allowable Discharge: 34.12 CFS Rainfall Intensity (i): Varies HOUR SCS TYPE II RAINFALL (i) RUNOFF (ci) RUNOFF VOL. ALLOWABLE INCREMENTAL CUMULATIVE DIST. DISCHARGE VOL. STORAGE STORAGE (in) (CFS/AC) (CF) (CF} (CF) (CF) 1 0.01 0 .09 0.07216 3239 122840 0 0 2 0 .023 0.11 0.093808 4211 122840 0 0 3 0 .035 0.11 0 .086592 3887 122840 0 0 4 0.048 0 .11 0.093808 4211 122840 0 0 5 0 .064 0 .14 0.115456 5183 122840 0 0 6 0.08 0.14 0.115456 5183 122840 0 0 7 0.1 0 .18 0.14432 6479 122840 0 0 8 0.12 0.18 0.14432 6479 122840 0 0 9 0 .147 0 .24 0.194832 8746 122840 0 0 10 0 .181 0 .30 0 .245344 11014 122840 0 0 11 0 .236 0.48 0 .39688 17817 122840 0 0 12 0 .663 3 .76 3 .081232 138323 122840 15483 15483 13 0 .776 0 .99 0 .815408 36605 122840 0 0 14 0 .825 0.43 0.353584 15873 122840 0 0 15 0 .856 0.27 0 .223696 10042 122840 0 0 16 0 .881 0 .22 0 .1804 8099 122840 0 0 17 0 .903 0 .19 0 .158752 7127 122840 0 0 18 0.922 0.17 0 .137104 6155 122840 0 0 19 0 .938 0 .14 0.115456 5183 122840 0 0 20 0.953 0 .13 0.10824 4859 122840 0 0 21 0 .965 0.11 0 .086592 3887 122840 0 0 22 0 .977 0 .11 0 .086592 3887 122840 0 0 23 0 .989 0 .11 0 .086592 3887 122840 0 0 24 1 0.10 0 .079376 3563 122840 0 0 Total 8.80 9/22/99SCS Type II (25 YR).xls Project: Kroger -College Station -50 Yr/24 Hr Detention Calculations CLR Job No : 98-057 -00 24 Hour Rainfall Depth: 9 .80 inches Drainage Area (A): 12.47 AC Runoff Coefficient ( c ): 0 .82 Allowable Discharge: 38.69 CFS Rainfall Intensity (i): Var ies HOUR SCS TYPE II RAINFALL (i) RUNOFF (ci) RUNOFF VOL. ALLOWABLE INCREMENT AL CUMULATIVE DIST. DISCHARGE VOL. STORAGE STORAGE {In) {CFS/AC) {CF) {CF} {CF) {CF) 1 0 .01 0.10 0 .08036 3608 139293 0 0 2 0 .023 0 .13 0.104468 4690 139293 0 0 3 0 .035 0 .12 0 .096432 4329 139293 0 0 4 0.048 0 .13 0 .104468 4690 139293 0 0 5 0 .064 0.16 0.128576 5772 139293 0 0 6 0 .08 0 .16 0 .128576 5772 139293 0 0 7 0 .1 0 .20 0 .16072 7215 139293 0 0 8 0.12 0 .20 0.16072 7215 139293 0 0 9 0 .147 0 .26 0 .216972 9740 139293 0 0 10 0 .181 0 .33 0 .273224 12266 139293 0 0 11 0 .236 0.54 0.44198 19841 139293 0 0 12 0 .663 4.18 3.431372 154041 139293 14748 14748 13 0 .776 1.11 0 .908068 40765 139293 0 0 14 0 .825 0.48 0 .393764 17677 139293 0 0 15 0 .856 0.30 0 .249116 11183 139293 0 0 16 0 .881 0.25 0.2009 9019 139293 0 0 17 0 .903 0 .22 0 .176792 7937 139293 0 0 18 0 .922 0 .19 0 .152684 6854 139293 0 0 19 0 .938 0 .16 0 .128576 5772 139293 0 0 20 0 .953 0 .15 0 .12054 5411 139293 0 0 21 0.965 0 .12 0.096432 4329 139293 0 0 22 0 .977 0 .12 0.096432 4329 139293 0 0 23 0 .989 0 .12 0.096432 4329 139293 0 0 24 1 0 .11 0 .088396 3968 139293 0 0 Total 9 .80 9/22 /99SCS Type II (50 YR).xls Project: Kroger -College Station -100 Yr/24 Hr Detention Calculations CLR Job No: 98-057-00 24 Hour Rainfall Depth: 11 .00 inches Drainage Area (A): 12.47 AC Runoff Coefficient ( c ): 0 .82 Allowable Discharge: 40.36 CFS Rainfall Intensity (i): Varies HOUR SCS TYPE II RAINFALL (i) RUNOFF (ci) RUNOFF VOL. ALLOWABLE INCREMENTAL CUMULATIVE DIST. DISCHARGE VOL. STORAGE STORAGE {in} {CFS/AC} (CF} (CF} {CF} {CF} 1 0 .01 0 .11 0.0902 4049 145296 0 0 2 0 .023 0.14 0.11726 5264 145296 0 0 3 0 .035 0.13 0 .10824 4859 145296 0 0 4 0 .048 0 .14 0 .11726 5264 145296 0 0 5 0 .064 0.18 0.14432 6479 145296 0 0 6 0 .08 0 .18 0.14432 6479 145296 0 0 7 0 .1 0.22 0.1804 8099 145296 0 0 8 0 .12 0 .22 0.1804 8099 145296 0 0 9 0 .147 0 .30 0 .24354 10933 145296 0 0 10 0.181 0.37 0.30668 13767 145296 0 0 11 0.236 0 .61 0.4961 22271 145296 0 0 12 0 .663 4.70 3.85154 172903 145296 27607 27607 13 0 .776 1.24 1.01926 45757 145296 0 0 14 0.825 0 .54 0.44198 19841 145296 0 0 15 0.856 0 .34 0 .27962 12553 145296 0 0 16 0.881 0.28 0.2255 10123 145296 0 0 17 0 .903 0.24 0.19844 8908 145296 0 0 18 0 .922 0 .21 0.17138 7694 145296 0 0 19 0.938 0 .18 0.14432 6479 145296 0 0 20 0 .953 0.17 0.1353 6074 145296 0 0 21 0.965 0.13 0.10824 4859 145296 0 0 22 0.977 0 .13 0.10824 4859 145296 0 0 23 0 .989 0.13 0 .10824 4859 145296 0 0 24 1 0.12 0.09922 4454 145296 0 0 Total 11.00 9/22/99SCS Type II (100 YR).xls KROGER -COLLEGE STATION CLR JOB NO . 98-057-00 Stormwater Calculations -Rational Method (2 YEAR EVENT) Site Area 542996 S.F . = 12.47 AC Pre-developed peak runoff (Qp) Qp = CIA C = 0.36 I= 4 .76 A= 12.47 AC Qp= 21 .35 CFS Actual allowable runoff is 83 cfs per TxDOT Project No . F471 (32) Post Developed Data c Rooftops: 152134 S.F. 0 .9 Asphalt: 0 S.F. 0 .9 Concrete : 318733 S.F. 0 .9 Other: 72129 S.F . 0 .3 Open Space & Stormwater Total: 542996 S.F. Cd= 0 .82 TIME TIME ALLOWABLE STORAGE (MIN) (SEC) RUNOFF VOLUME CxA Q VOLUME REQUIRED (CFS) (CU. FT.) (IN/HR) (CFS) (CU. FT.) (CU . FT.) 10.225 10 600 21.35 12812 10.225 6.33 64.69 38815 26002 15 900 21.35 19218 10 .225 5.19 53.09 47784 28566 20 1200 21.35 25624 10 .225 4.43 45.31 54371 28746 25 1500 21.35 32031 10 .225 3.88 39.69 59534 27503 30 1800 21.35 38437 10.225 3.46 35.42 63762 25325 35 2100 21.35 44843 10.225 3.14 32 .06 67335 22492 40 2400 21 .35 51249 10.225 2.87 29.34 70425 19176 45 2700 21 .35 57655 10 .225 2 .65 27.09 73146 15491 50 3000 21 .35 64061 10 .225 2.46 25 .19 75577 11516 55 3300 21 .35 70467 10 .225 2.30 23 .57 77775 7308 60 3600 21 .35 76873 10 .225 2 .17 22 .16 79780 2907 KROGER -COLLEGE STATION CLR JOB NO . 98-057 -00 Stormwater Calculations -Rational Method (5 YEAR EVENT) S ite Area 542996 S.F. = Pre-developed peak runoff (Qp) Qp =CIA C = I= A= 12.47 AC 0 .36 5 .87 12.47 AC Qp = 26.33 CFS Actual allowable runoff is 83 cfs per TxDOT Project No . F471(32) . Post Developed Data c Rooftops: 152134 S.F. 0 .9 Asphalt: 0 S.F. 0 .9 Concrete : 318733 S.F. 0.9 Other: 72129 S.F. 0.3 Open Space & Stormwater Total: 542996 S.F. Cd= 0 .82 TIME TIME ALLOWABLE STORAGE {MIN) (SEC) RUNOFF VOLUME CxA i Q VOLUME REQUIRED (CFS) (CU . FT.) {IN/HR) (CFS) (CU. FT.) (CU . FT.) 10 .225 10 600 26 .33 15795 10 .225 7.69 78 .66 47197 31402 15 900 26.33 23693 10 .225 6.38 65.19 58674 34982 20 1200 26.33 31590 10 .225 5.48 56.03 67239 35649 25 1500 26 .33 39488 10 .225 4.83 49.36 74033 34545 30 1800 26 .33 47385 10 .225 4.33 44.25 79649 32264 35 2100 26.33 55283 10.225 3.93 40 .21 84431 29148 40 2400 26 .33 63180 10 .225 3 .61 36.91 88593 25413 45 2700 26 .33 71078 10.225 3.34 34.18 92278 21201 50 3000 26 .33 78975 10 .225 3.12 31 .86 95587 16612 55 3300 26 .33 86873 10 .225 2.92 29 .88 98590 11717 60 3600 26 .33 94770 10 .225 2 .75 28.15 101340 6569 KROGER-COLLEGE STATION CLR JOB NO . 98-057-00 Stormwater Calculations -Rat ional Method ( 10 YEAR EVENT) Site Area 542996 S.F. = 12.47 AC Pre-developed peak runoff (Qp) Qp = CIA C = 0 .36 I= 6 .63 A= 12.47 AC Qp= 29.77 CFS Actual allowable runoff is 83 cfs per TxDOT Project No . F471(32) Post Developed Data c Rooftops : 152134 S .F. 0 .9 Asphalt: 0 S.F . 0 .9 Concrete: 318733 S.F. 0 .9 Other: 72129 S .F. 0 .3 Open Space & Stormwater Total: 542996 S.F. Cd= 0.82 TIME TIME ALLOWABLE STORAGE (MIN) (SEC) RUNOFF VOLUME CxA i Q VOLUME REQUIRED (CFS) (CU. FT .) (IN/HR) (CFS) (CU . FT.) (CU. FT.) 10.225 10 600 29 .77 17864 10 .225 8.63 88.29 52975 35111 15 900 29.77 26796 10.225 7.19 73.56 66205 39409 20 1200 29.77 35728 10 .225 6.21 63.49 76191 40464 25 1500 29.77 44660 10.225 5.49 56 .13 84189 39529 30 1800 29.77 53592 10 .225 4 .94 50.47 90852 37261 35 2100 29.77 62523 10 .225 4 .50 45.98 96566 34042 40 2400 29.77 71455 10 .225 4.14 42 .32 101569 30114 45 2700 29.77 80387 10.225 3.84 39.27 106023 25636 50 3000 29.77 89319 10.225 3 .59 36.68 110040 20721 55 3300 29 .77 98251 10 .225 3 .37 34.46 113702 15451 60 3600 29 .77 107183 10 .225 3.18 32.52 117069 9886 KROGER-COLLEGE STATION CLR JOB NO. 98-057-00 Stormwater Calculations -Rational Method (25 YEAR EVENT) S ite Area 542996 S .F. = 12 .47 AC Pre-developed peak runoff (Qp) Qp = CIA C = 0.36 I= 7.60 A= 12.47 AC Qp= 34.11 CFS Actual allowable runoff is 83 cfs per TxDOT Project No . F471 (32) Post Developed Data c Rooftops: 152134 S .F. 0 .9 Asphalt: 0 S .F. 0 .9 Concrete: 318733 S .F. 0 .9 Other: 72129 S .F. 0.3 Open Space & Stormwater Total: 542996 S .F. Cd= 0 .82 TIME TIME ALLOWABLE STORAGE (MIN) (SEC) RUNOFF VOLUME CxA i Q VOLUME REQUIRED (CFS) (CU . FT .) (IN/HR) (CFS) (CU . FT.) (CU . FT.) 10 .225 10 600 34.11 20466 10 .225 9 .86 100.84 60503 40037 15 900 34.11 30699 10.225 8 .23 84 .19 75775 45077 20 1200 34.11 40932 10.225 7.12 72.80 87357 46426 25 1500 34.11 51165 10 .225 6 .30 64.44 96667 45502 30 1800 34.11 61397 10 .225 5 .67 58 .03 104449 43052 35 2100 34 .11 71630 10 .225 5.18 52 .92 111140 39509 40 2400 34.11 81863 10 .225 4.77 48 .76 117013 35149 45 2700 34 .11 92096 10 .225 4.43 45.28 122252 30156 50 3000 34.11 102329 10 .225 4.14 42 .33 126986 24657 55 3300 34.11 112562 10 .225 3.89 39.79 131309 18747 60 3600 34.11 122795 10 .225 3.68 37 .58 135289 12494 KROGER-COLLEGE STATION CLR JOB NO. 98 -057-00 Stormwater Calculations -Rational Method (50 YEAR EVENT) S ite Area 542996 S .F. = 12.47 AC Pre-developed peak runoff (Qp) Qp = CIA C = 0.36 I= 8.62 A= 12.47 AC Qp = 38 .68 CFS Actual allowable runoff is 83 cfs per TxDOT Project No. F471(32) Post Developed Data c Rooftops: 152134 S .F. 0 .9 Asphalt: 0 S.F . 0.9 Concrete: 318733 S .F. 0 .9 Other: 72129 S.F. 0 .3 Open Space & Stormwater Total : 542996 S .F. Cd= 0 .82 TIME TIME ALLOWABLE STORAGE (MIN) (SEC) RUNOFF VOLUME CxA i Q VOLUME REQUIRED (CFS) (CU. FT.) (IN/HR) (CFS) (CU . FT.) (CU . FT.) 10.225 10 600 38 .68 23207 10 .225 11 .15 113.99 68394 45187 15 900 38 .68 34811 10 .225 9.33 95.38 85843 51032 20 1200 38 .68 46414 10.225 8.08 82 .61 99135 52721 25 1500 38 .68 58018 10.225 7 .16 73 .24 109860 51842 30 1800 38.68 69621 10.225 6.46 66.03 118853 49232 35 2100 38 .68 81225 10.225 5.90 60.29 126605 45381 40 2400 38 .68 92828 10 .225 5 .44 55 .59 133426 40598 45 2700 38 .68 104432 10.225 5.05 51 .68 139523 35092 50 3000 38 .68 116035 10 .225 4 .73 48 .35 145043 29008 55 3300 38.68 127639 10 .225 4.45 45 .48 150091 22452 60 3600 38 .68 139242 10.225 4 .20 42 .99 154746 15504 KROGER-COLLEGE STATION CLR JOB NO . 98-057-00 Stormwater Calculations -Rational Method (100 YEAR EVENT) Site Area 542996 S.F. = 12.47 AC Pre-developed peak runoff (Qp) Qp = CIA C = 0.36 I= 8.99 A= 12.47 AC Qp= 40 .35 CFS Actual allowable runoff is 83 cfs per TxDOT Project No. F471 (32) Post Developed Data Roof tops : 152134 S.F. Asphalt: 0 S.F. Concrete : 318733 S.F. Other: 72129 S.F. Total: 542996 S .F. Cd= TIME TIME ALLOWABLE (MIN) (SEC) RUNOFF VOLUME (CFS) (CU . FT .) 10 600 40.35 24213 15 900 40.35 36319 20 1200 40.35 48426 25 1500 40.35 60532 30 1800 40.35 72639 35 2100 40.35 84745 40 2400 40 .35 96852 45 2700 40 .35 108958 50 3000 40.35 121065 55 3300 40 .35 133171 60 3600 40.35 145278 --------~-----------~------ ~-------- c 0.9 0.9 0.9 0.3 Open Space & Stormwater 0.82 STORAGE CxA Q VOLUME REQUIRED (IN/HR) (CFS) (CU . FT.) (CU. FT.) 10.225 10.225 11.64 119.02 71409 47196 10 .225 9.73 99 .52 89564 53245 10 .225 8.43 86.20 103445 55019 10.225 7.48 76.46 114691 54158 10.225 6.75 68 .98 124160 51521 10 .225 6.16 63 .03 132355 47609 10.225 5.69 58 .16 139591 42739 10.225 5.29 54.10 146081 37123 10.225 4.95 50 .66 151975 30910 10.225 4.66 47 .69 157379 24208 10.225 4.41 45.10 162376 17099 I I I .. ------+------- _______ 'K_oC..l"--_ (~~~ ---~§S 1 ,.J{.7 ____ . _. . _ \~6 P2=-:::. 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Box 9960 1101 TexasAvenue College Station , TX 77842 RE : Rock Prairie Crossing Shopping Center CLR Job No: 98-057-00 Dear Mr. C!illoway: Pursuant to Mr. Jeff Tondre's request for additional information regarding the drainage design for the referenced project, we offer the following to better darify the design theory: • The theoretical water surface elevation (see column labeled "'Hydraulic Gradient Upstream· for the 2·year storm) was calculated using Manning·s equation . The computed water surface elevations should be compared to the seal point elevations shown in the "'Notes" column . A theoretical water surface elevation which exceeds the corresponding top of grate elevation (shown in the ·Notes" column) ind icates on-pavement ponding (i.e. stormwater detention). • As indicated in the previously submitted September 1999 Drainage Report, the rainfall intensity was modified to account for this on-site detention by :teratlng interi~ity values until the hydraulic grade line corres:,onded with actual design conditions (i.e ., water surface elevation to match seal point i11 pavement.) The peak discharge was determined using Mann ing's equation and the mcdified intensity value . • The required detention volume was calculated using the methods outlined in the City of College Station Design Manual, as documented in the previously submitted report . As indicated therein, the actual volume of detentioo provided exceeds this required detention amount. We appreciate you help in securing the City's approval. Please call me if you have any questions . Sincerely, COBOURN LINSEISEN & RATCLIFF, INC. Civil Engin..eers • Architects • Surveyors • Planners '3100 Notthwo:sl Fw)', Sliite 500 , Houstoft, Tens 77040 Phone ; (713) 462-099) • Fu: (713) 462-2732 Rod< -~a o.m.r. "'-~ s-2·YR STORM CALCUJ.ATIOHS,.,, -... , Waler su.hoe ~lion cut JOll HO. N417-«I f'IPllbn fl'Dn\ ,. -~ IA 1A ,.,_ ""' IA --(eel 0.4' --0.4-4 -d CA c-0.35 _..., (Wlwl l.ll ....... ,_ ""'' 2-211 rm.al ~ -1 ta.DO ---,.,... ........ ~ ~ tU U _,,.. so.-"I(" 11'> ld'll 0.40 "D.-~ • Dlolpl c_..,. INlcdy ""'1 1'oe) "" .... , .. Ct:) 0.46 -DrlllJ O') 0..00 -u.. ·--!IV ~ ' l B?M ·-... --............ ~) l..0 --· "'' 0.14 a..,.:...~~ .._ -oi-. OQ ~ ... ; 0.11 i >OU4 30U1 {._ -11:.Jll!Ull ].. I I ZA · I f ' -~---~----0.:..~--o~~-··.:' __ u~--.:~o.oo 2119 . " 2M i O.Ol~S.f1 i uo .... O.llO i ---190..•; 2..44 UIO ' Ul i >OU1 XL7t TQ:IQ5.411 I I ; ~ ! 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' j 0.DH j II.It i t.N i U4 S TV 11K TICOOT "' O.llO IUS , 12..IO 1 Cl.00 G.00 .. ! • uo I D.00 0..00 uo a.oo ' ' . .... "' .. I I I I I I ! ; : l ! i I i i I ! r I I ~I. !r•S...""*111 __ ,,, _____ , _,,,,, __ .... C> .... ,... I ..... I CID CID c::> ..... ..... CID -0 31 ..... -. 0 3 ' n .-XI + ..... ..... .... en ..... ..... ..... ..... ..... -t I en """" ..... "U c::> ..... ....... c::> ..... ..... ' en ClO U'I -__ ,.. "" . . \ ,, STORMWATER POLLUTION PREVENTION PLAN AND BEST MANAGEMENT PRACTICES FOR KROGER SW 361 CLR Job No: 98-057-00 SH 6 AND ROCK PRAIRIE COLLEGE STATION, TEXAS JUNE, 1999 F:\WORK\99-057-00\DOCUMENTATION\ENGINEERING\ORG-REPT.PPP .DOC NOTICE June ,1999 PROJECT DESCRIPTION: KROGER SW 361 SH 6 AND ROCK PRAIRIE COLLEGE STATION, TEXAS The project site is a rectangular shaped tract of approximately 12.466 acres located in College Station, Texas, lying west of the intersection of State Highway 6 and Rock Prairie . The project includes construction of underground utilities, parking facilities , and a grocery store. SEQUENCE OF EVENTS PHASE I: The first phase will include site grading and construction of underground utilities to serve the proposed grocery store. PHASE II: The second phase will include stabilization of parking lot subgrade, building construction, paving of parking and access areas and installation of remaining underground utilities . This will require the installation of silt fence inlet protection and straw bale inlet protection. PHASE Ill: This phase will include final site grading. All disturbed areas will be hydromulch seeded. When all construction activity is complete and the site is stabilized, structural controls will be removed, and soils disturbed by their removal will be reseeded. F :\WORK\99-057-00\DOCUMENTATION\ENGINEERING\ORG -RE PT.PPP .DOC OWNER CenterAmerica Property Trust 3901 Bellaire Blvd. Houston, TX 77025 PROJECT DESCRIPTION: KROGER SW361 CONTRACTOR SH 6 AND ROCK PRAIRIE COLLEGE STATION, TEXAS The project site is a rectangular shaped tract of approximately 12.466 acres located in College Station, Texas, lying west of the intersection of State Highway 6 and Rock Prairie . The project includes construction of underground utilities, parking facilities , and a grocery store. SEQUENCE OF EVENTS PHASE I: The first phase will include site grading and construction of underground utilities to serve the proposed grocery store . PHASE II: The second phase will include stabilization of parking lot subgrade, building construction, paving of parking and access areas and installation of remaining underground utilities . This will require the installation of silt fence inlet protection and straw bale inlet protection . PHASE Ill: This phase will include final site grading . All disturbed areas will be hydromulch seeded. When all construction activity is complete and the site is stabilized, structural controls will be removed, and soils disturbed by their removal will be reseeded . ESTIMATED TOTAL SITE AREA, TOTAL DISTURBED AREA: The total area of the site is approximately 7.148 acres. The entire project area will be disturbed during construction. RUNOFF COEFFICIENT: The weighted runoff coefficient "c" for the overall project is calculated at 0.82. The soil type is described as firm clayey/silty sand and sandy silt from 0-2 feet below grade . CALCULATIONS: F :\WORK\99-057-00\DOCUMENTATION \ENGINEER ING\ORG-REPT.PPP .OOC Runoff Coefficient "c"" Area 10.78 ac impervious site 1.68 ac pervious 12.46 ac total SITE MAP: The site map is attached. 0 .9 0 .3 NAME OF THE RECEIVING WATER, AND EXTENT OF WETLANDS: Lick Creek . There are no known existing wetland areas on the site. CONTROLS: EROSION AND SEDIMENT CONTROLS: Major erosion and sediment controls are shown on the Site Plan . Stabilization Practices 1. Construction road access will be stabilized using coarse aggregate. 2 . The parking lot construction phase is expected to begin within 2 weeks after utilities are completed. If the interim period between the phases is more than 21 days , the parking area will be hydro-mulched within 14 days. 3. Newly graded areas will have textured soil surfaces to reduce sheet flow and improve surface water impoundment. Structural Practices 1. Filter fabric fences will be used around any temporary earth stockpiles while they are in use. 2. Straw bales will be placed on either side of existing and proposed inlets in completed parking lots to trap sediment that escapes filter fabric fences. The straw bales will be removed after final stabilization of the site. 3 . Filter fabric fences will be placed along the property lines of all disturbed areas not under immediate construction . F:\WORK\99-057-00\DOCUMENTATION\ENGINEERING\ORG-REPT.PPP.DOC SEQUENCE OF MAJOR EROSION AND SEDIMENT CONTROL ACTIVITIES: PHASE I: Filter fabric fences, straw bale fences, silt fence inlet protection, and stabilized construction entrance area will be installed . Utility construction, including storm sewers, sanitary sewers , water lines and dry utilities, will occur. Any temporary earth stockpile and filter fabric fencing will be set up at the commencement of excavation . PHASE II : Silt fence inlet protection and straw bale inlet protection will be installed. Stabilization of parking lot subgrade, building construction, paving of parking and access areas will occur . PHASE Ill : Final site grading and hydromulch seeding of all disturbed areas will occur. When construction activity is complete and the site is stabilized , structural controls will be removed and soils disturbed by their removal will be reseeded. STORM WATER MANAGEMENT: Storm water from the newly graded area will discharge by overland flow to the new storm sewer system, then into an existing storm sewer system . There is no need for velocity dissipation devices. OTHER CONTROLS: WAS T E DISPOSAL : Waste Materials -All trash and construction debris from the site will be hauled to an approved landfill. No construction waste materials will be buried onsite . All personnel will be instructed regarding the correct procedure for waste disposal. Hazardous Waste -No hazardous waste is expected to be generated or encountered in this project. In the event that hazardous waste is encountered, all hazardous waste material will be disposed of in the manner specified by local or state regulation or by the manufacturer. Sanitary Waste -All sanitary waste will be regularly collected from the portable units by a licensed sanitary waste management contractor. OFFSITE VEHICLE TRACKING : A stab ilized construction entrance has been provided to help reduce vehicle tracking of sediments . The paved streets adjacent to the site entrance will be cleaned daily, if necessary, to remove any excess mud, dirt or rock tracked from the site. F:\WORK\9 9-057-00 \DOCUMENTAT ION I ENGINEERING\ORG-REPT.PPP .DOC DEMONSTRATION OF COMPLIANCE WITH STATE AND LOCAL REGULAT IONS : The proposed project will be in compliance with applicable state and local waste disposal and sanitary sewer regulations. MAINTENANCE : The following is a list of erosion and sediment controls to be used on th is project. Maintain existing controls along adjacent existing streets . Stabilization Practices 1. Stabilization of construction access. 2 . Hydromulch seeding . Structural Pract ices 1 . Filter fabric fences. 2. Straw bale on either side of existing and proposed inlets. To maintain the above practices, the following will be performed : 1. Ma i ntenance and repairs will be conducted within 24 hours of inspection report . 2 . Sediment will be removed from behind the sediment fences when it becomes about 1/3 the height of the fence. INSPECTIONS: The contractor will designate a qualified person or persons to perform the following inspections: Disturbed areas and areas used for storage of materials that are exposed to precipitation will be inspected for evidence of, or the potential for, pollutants entering the drainage system . Erosion and sediment control measures identified in the plan will be observed to ensure that they are operating correctly. Where discharge locations or points are accessible , they will be inspected to ascertain whether erosion control measures are effective in preventing significant impacts to receiving waters. Locations where vehicles enter or exit the site will be inspected for evidence of offs ite sediment tracking . The inspection will be conducted by the responsible person at least once every 7 calendar days and within 24 hours after a storm of 0.5 inch or greater. After a portion of the site is finally stabilized, inspection will be conducted at least once every month . F:IWORK\99-057-00\DOCUMENTATION \ENGINEERING\ORG-REPT.PPP .DOC Based on the results of the inspection, the site description and control measures of this SWPAP will be revised as appropriate, but in no case later than 7 calendar days following the inspection. A report summarizing the scope of the inspection, name(s) and qualifications of personnel making the inspection, the date(s) of the inspection, major observations relating to the implementation of the Stormwater Pollution Abatement Plan, and actions taken in accordance above will be made and retained as part of the Stormwater Pollution Abatement Plan for at least three years from the date that the site is finally stabilized. The report will be signed in accordance with Part IV .G of the General Permit. NON-STORM WATER DISCHARGES: Inventory of Pollution Abatement Plan The following substances listed below are expected to be present onsite during construction. Concrete Detergents Paints (enamels and latex) Metal studs Fertilizers Fuels Cleaning solvent Lubricants Wood Masonry block Roofing shingles Brick Mortar Spill Prevention The following are the material management practices that will be used to reduce the risk of spills or other accidental exposure of the materials and substances described above to stormwater runoff. Good Housekeeping The following good housekeeping practices will be followed onsite during the construction project: 1. An effort will be made to store only enough product required to do the job. 2. All materials stored onsite will be stored in a neat, orderly manner in their appropriate containers and, if possible, under a roof or other enclosure. 3 . Products will be kept in their original containers with the original manufacturer's label. F :\WORK\99-057-00\DOCUMENTATION\ENGINEERING\ORG-REPT.PPP .DOC 4. Substances will not be mixed with one another unless recommended by the manufacturer. 5 . Whenever possible, all of a product will be used up before disposing of the container. 6 . Manufacturer's recommendations for proper use and disposal will be followed. 7. The site superintendent will inspect daily to ensure proper use and disposal of materials onsite. Hazardous Products These practices will be used to reduce the risks associated with hazardous materials, if hazardous materials are used . 1. Products will be kept in original containers unless they are not resealable . 2 . Original labels and material safety data will be retained. 3. If surplus product must be disposed of, manufacturer's or local and state recommended methods for proper disposal will be followed . Product Specific Practices The product specific practices to be followed are listed in Table 1. Spill Prevention Practices The spill prevention practices to be followed are listed in Table 1. Copies of the forms to be used for the Inspection and Maintenance report are included in the following pages as a part of this SW PAP. F :\WORK\99-057-00\DOCUMENTATION\ENGINEERING\ORG-REPT.PPP .DOC · TABLE 1 Product Soecific Practicu Tr-.. following p<oduct a~eif.c prac:ticH will b• followed On$ite : PetroJeum Products: I All onsiu vehicfu will be monitored for leali:s and rec1iv1 regular preventive maintenance to ~•duce trie c ."l~r.ce ct iH~~o;e . Pa:rcieu~ ;ir:c1..c:s .,..,:1 !::e s:::re: ir. ::;~:!v seJled :~n~J;r.e~s wh1cn are clearly i..celed . Any 1sph.ilt si..os:ances used ons1:e will be J;>plied ac:or::!in~ to t1"'.e manuf.icturer 's recommendations · Fertil i zers : I .=er.ii i zers i.:sed w il ! :e a;;li ed only :r. tr1e ~ir.ir:"l1.:~ a~ounts recommended by the manufacturer. Once app li ed. fer.iii zer w ill :e wor~ec: in the soil to limit exposure to st orm w~ter. Storage will be in a covered shed . The contents of any partially used bags of fertilizer will be transferred to a sulable plastic bin to avoid spills . Paints : I All containers will be tightly sealed and stored when not reQuired for use. Excess paint will not be discharged to the storm sewer system but will ~ properly disposed of according to manufacturers' instructions or State and local regulations. Concrete Trucks: l Concrete trucks will not be allowed to wash out or discharge surplus concrete or drum wash water on the site. Spill Prevention Practices In addition to the good housekeeping and material management practices discussed in the previous sections of this plan, the following practices will be followed for spill prevention and cleanup: • Manufacturers' recommended methods for spill cleanup will be clearly posted and site personnel will be made aware of the procedures and the location of the information and cleanup supplies. • Materials and tQuipment necessary for spill cleanup will be kept in the material storage area onsite. Equipment and materials will include but not be limited to brooms, dust pans, mops, rags. gloves, goggles, k.iny liner. sand. sawdust. and plastic and metal trash containers specifically for this purpose . • All spills will be cleaned up immediately after discovery. • The spill area will be kept well ventilated and personnel will wear appropriate protective clothing to prevent injury from contact with a hazardous substance . • So ill s of toxic or hazardous material will be reported to the appropriate State or local gove rn ment ai;ency, regardless of the size . • The spill prevention plan will be adjusted to include measures to prevent this type of spill from reoccurring and how to clean up the spill if there is another one. A descr ipt i on of the so il!. what caused it. and the cleanup measures will also be included. • M r . Doe . the si te super intendent respons ib l e fer the dav·to·day site operations . w ill be the s;::ill p r event ion and cleanup coordinator . He w ill des ignate at least three other site persc:i:ie l whc will receive spill prevention and c leanup training . These individuals will each become responsib le for a particular phase of prevent i on and c l eanup . The names of responsible spill pe r sonnel w ill be posted in the mater i al stora~e area and in the office tra i ler onsite . COPY Kroger SW 361 College Station, TX Wed Jun 09 17:50 1999 Scale 1 :31,250 (at center) 2000 Feet 1000 Meters ---Secondary SR , Road , Hwy Ramp -Major Connector -State Route Utility -+-+-Railroad Population Center OWNER' S SAMPLE LETTER DATE Stonn Water Notice of Intent 401 M Street, S.W. Washington, D.C. 20460 Re: Notice of Intent ·· -.,. · · · -· -· EPA Stonn Water General Pennit Facility Name Location Dear Sir: We are enclosing a Notice of Intent for a stonn water discharge general pennit for construction activities. This Notice of Intent is for Name of the Facility and location (address). We are attempting to comply with the EPA Stonn Water Discharge Regulations and if you require any additional infonnation, please contact the undersigned at phone number. Sincerely, Corporate Officer xc: Texas Natural Resources Conservation Commission, P.O. Box 13087, Austin , TX 78711-3087 Harris County FloOd Control District: 9900 Northwest Fw'f., #220 , Houston, ·n(n092 City of Houston, P.O. Box 1562, Houston, TX 77251 Cobourn Linseisen & Ratcliff, Inc., 13100 Northwest Fwy, Suite 500, Houston, TX 77040 Contractor c:\epa\sample .ltr ......... ~ ........... . ..... ,,......, .. ~ .... ,, ....... .,................... ., ~ ............ ~ ..-'J ;no91.llU1'1ll9CI ...... ~ ...... ~ .. 'Wr'tt'IM .. ....-... ._,.......,_,.~ ... ...._ ~---·i..-1111,o~llll\l:Jllllilll ~,._., .. 11 .. _..... .............................. .._CI......,, ~· .... _....,.,. 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I • -..w ... -... ..... ,_,4.-o J 5 .... ._&$2 .. . -.---. .....___.ftCWM,.~"9.± ............. ,., ..... ._....__.., ........ as ..... ,...._.,,..: : rs 20 'd ......_----=== ...... ~----= .... , I lllf~~--.................... .... :»a .... "" .................... _....., "89 9lS9£ ~303H/8 3 X3 ~8 Wd 99:EO nHl 66-EO-Nnr - CONTRACTOR'S SAMPLE LEITER DATE Storm Water Notice of Intent 401 M Street, S.W. Washington, D.C. 20460 Re: Notice of Intent EPA Storm Water General Permit Facility Name Location Dear Sir: We are enclosing a Notice of Intent for a storm water discharge general permit for construction activities. This Notice of Intent is for Name of the Facility and location (address). We are attempting to comply with the EPA Storm Water Discharge Regulations and if you require any additional information, please contact the undersigned at phone number. Sincerely, Corporate Officer xc: Water Management Division, U.S. Environmental Protection Agency, Region VI, 1445 Ross Avenue, 14th Floor, Dallas, TX 75202-2733 Texas Natural Resources Conservation Commission, P.O. Box 13087, Austin, TX 78711-3087 Harris County Flood Control District, 9900 Northwest Fwy., #220, Houston, TX 77092 City of Houston, P.O. Box 1562, Houston, TX 77251 Cobourn Linseisen & Ratcliff, Inc., 13100 Northwest Fwy, Suite 500, Houston, TX 77040 Owner c :\epa\sample .ltr THIS FORM REPLACES PREV10US FORM 3510-0 (8-92) Form Approved . OM9 !Ito......_.. i See Reverse for lnatructlona ~.......,W1 .. NPOES &EPA United States Environmental Protection Agency Washington. DC 20460 FORM Notice of Intent (NOi) for Storm Water Diechargea Associated with lnduatrtal ~ Activity Under a NPDES Generml Permit l ·1ission of this Notice of Intent constitutes nollc:e that !he P91tY idll 1lled in Section II al l1iS form intends to be aulhorized by a NPDES penntt ..... b "\.. . water discharges associated wtlh industrtal ~in !he State identlled in Section Ill al l1iS form. ~a ~rrnitlM obigetN 8UCf\ ~ 90 comply witt1 the terms and conditions al the pennit. NECESSARY INFORMATION MUST BE PROVIDED IS FORM. ! I. Permit Selection: You mU9t Indicate the NPDES S1Drm Wallr generlil petmit IR'9r whic:t'I you are apptying b cowrage. °*"one al theM. tolowlng : Baseline D Baelne D M~ D lndultrial Conatructlon (Group Permit) II. Facility Operator lnfotmation Name: I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I Phone: I I I I I I I I I I I I I Status of D Address : I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I Owner,()perator: City: I I I I I I I I I I I I I I I I I I I I I I I Staw: LU ZIPCode: I I I -I I I I I I I I Ill. Facility/Site Location lnfOnnation Name: I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I Is the= located on Indian ? Cf 01 N) D Address: I I I I I . I . I • I I I I . I I I I . . I . . . . . . . . . City: I I I I I I I I I I I I I I I I I I I I I I I I Stat.: LLl ZIP Code:I I I I I I• I I I I I Latitude: I I I I I I I Longitude: I I I I I I I I Ouaatlf: LLl Section: Lt.J Township: I I I I I Range: I I I I I IV. Site Activity lnfonnation MS. Operator Name : I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I • I R~ Water Body: I I I I I I I I I I I I I I I I I I I I I I I I I )J are filing u a co-pennitlM, MLdll:Sacmr Permit~ ..• ctr storm water general permit nunmer: I I I I I I I I I I Baaed on the Instructions~ im Hal the Ml.Ill-Sedor permit, .,.. spedes ldeutllled In Addendum H SIC or Designated I I 2nd: I I In Pl axll1ilty to the ltOnn wat• cllchllrgel '° be COY8ted Activity Code : Primary: I I I I I I wlder this permit, or the areas al BMP construction to D control those stonn wat.r discharges? D Cf or N) Is the facility required to submit monitoring data? (1, 2. 3, or 4') Will construction (land dis~ dvltles) be conducted D If You Have Another Existing NPOES I I for atonn water canlrols? Cf or Permit, Enter Permit Number: I I I I I I I I D Is mpplc:ant subjec:t to Md In complenee with a wrlll9n hlstorte r i'Y Of N\ · V . Additional Information Required for c::-.::::-=:.--: Activities CJnl)' Project Start Date: Con1>1etion Date: Is the S1lonn Water Polutlon Pr9'ii•llol1 Plan I I I I I I I I Estimated Area to be I I In compliance with State and/or Local D I I I I I I DISUbed (In Acr•): I I I I I sediment and erosion plans? (Y 0t N) VI. Certification: The certification statement in Box 1 applles to all applicants. Tti. certification statement in Box 2 applies~ to fac:illtles applying for !he Mufti.Sector storm water general pennlt. I BOX 1 BOX2 I .ALL APPLICANTS: MULTI-SECTOR STORM WATER GENERAL PERMIT APPLICANTS ONLY: I certify under penalty of law that this I certify injer penalty al law that I have read and understand the Part 1.8 . eligibility requirements for document and all attachments were coverage IR'9r the M&Ati-Sector s1onn water general permit, including those requirements relating to prepared under~ direction or supervision 1he protection al spedes identified In Addendum H. in accordance a system designed to To the best of my knowtedge, 1he clsc:harges covered ooder this permit, and construction al BMPs to assure that qualified personnel property gather and evaluate the Information control storm water run-oft, are not likely to and will not llkely adversely affect any species Identified in submitted . Baaed on my ~ al "the Addendum H al the ~Sector storm water general permit or are otherwise eligible for coverage due I person or persons who manage the system, to previous authorization IR'9r the Endangered Species Act. I or 1hose persons diree11y r.po1lllbl• tor To the best of my knowledge, I further certify that such disctiarges, and construction of BMPs to I gathering the information, !he Information submitted is. to the best of my knowledge control storm water run-off, do not have an effect on properties list.d or eligible for lis1ing on lhe and belief. true . accurate. and complete . I National Register of Historic Places under the Nallonal Historic Preservation Act, or are otherwise I am aware that there are significant penafties eligible for coverage due to a previous agreement under the National Historic Preservation Act. I submitting false information, including the I sibil ity of fine and imprisonment for . I understand that continued coverage under the Multi -Sector general permit is contingent upon owing violations . maintaining eligibility as provided for in Part 1.8 . Pnnt Name : I I I I I I I I I I ' ' Date : I I I I I I I , Sonnature : EPA Form 35 10·6 (8 ·98 ) ITEM NO. 4211-FILTER FABRIC FENCE PART 1 -GENERAL 1.01 Description This Item describes the installation of erosion and sedimentation control filter fabric fences utilized during construction and prior to the final development of the site . 1.02 Related Work Related work as called for on PLANS or specified elsewhere in this or other TECHNICAL SPECIFICATIONS. 1.03 Submittals Manufacturer's catalogue sheets and other pertinent information on geotextile fabric. PART 2 -PRODUCI'S 2.01 Filter Fabric Provide woven or nonwoven geotextile filter fabric made of either polypropylene, polyethylene, ethylene, or polyamide material. Geotextile fabric shall have a arab strength of 100 psi in any principal direction (ASTM D-4632), Mullen burst stren&th exceeding 200 psi (ASTM D-3786), and the equivalent openin& size specified on PLANS . Fllter fabric material shall contain ultraviolet ray inhibitors and stabilizers to provide a minimum of six months of expected usable construction life at a temperarure range of 0°F to 120°F. Representative Manufacturers : Marifl Inc. or equal. PART 3 -EXECUl10N 3.01 General A . Provide erosion and sedimentation control systems at the locations shown on PLANS. Such systems shall be of the type indicated and shall be constructed in accordance with the requiremenu shown on PLANS and set out in this Item . B. No clearina and arubbin& or rou&h cuttina, other than as specifically directed by the Owner to allow soil testing and surveying, shall be permitted until erosion and sedimentation control systems are in place. C. Maintain existin& erosion and sedimentation control systems located within the project site installed by others prior to start of construction under this contract until acceptance of the project or until directed by the Owner to remove and discard the existin& system. 4211 -114 D. Inspect and repair or replace components of all erosion and sedimentation control systems as specified for each type of system. Unless otherwise directed, maintain the erosion and sedimentation control systems until the project is accepted by the Owner. Remove erosion and sedimentation control systeITll promptly when directed by the Owner. Discard removed materials offsite. E. Remove and dispose sediment deposits at the project spoil site. If a project spoil site is not designated on PLANS, dispose of sediment offsite at location not in or adjacent to stream or floodplain. Off-site disposal will be the responsibility of the Contractor. Sediment ti> be placed at the project site should be spread, compacted and stabilized in accordance with the Owner's directions . Sediment shall not be allowed to flush into stream or drainage way. If sediment has been contaminated, it needs to be disposed of in accordance with existing federal, state and local regulations . F. Unless otherwise indicated, compact embankments, excavat ions, and trenches by mechanically blading, tamping, and rolling soil in a maximum of 8-inch layers . Compaction density shall be at a minimum of 90 percent Standard Proctor ASTM D-698-78 density. Make at least one test per 500 cubic yards of embankment. G. Equipment and veh icles shall be prohibited by the Contractor from maneuvering on areas outside of dedicated rights-of-way and easements for construction. Damages caused by construction traffic to erosion and sedimentation control systeITll shall be repaired immediately. H. Contractor shall employ protective measures described in Item General Source Controls to avoid damage to existing trees to be retained on the project site. Conduct all construction operations under this Contract in conformance with the erosion control practices described in that Item. 3.02 Construction Methods A. Provide filter fabric fence systeITll at locations specified on PLANS in accordance with enclosed drawing. Filter fabric fence systeITll shall be installed in such a manner that surface runoff will percolate through the system in sheet flow fashion and allow sediment to be retained and accumulated. B. Attach the filter fabric to 1 inch by 2 inch wooden stakes spaced a maximum of 3 feet apart and embedded a minimum of 1 foot. The wooden stakes shall be installed at a sli&ht an1le toward the source of anticipated runoff. C. Trench in the toe of the filter fabric fence with a spade or mechanical trencher so that the downward face of the trench is flat and perpendicular to the direction of flow or for V- trench conftaurmon ·as shown on the attached drawina· Lay filter fabric alona the edaes of the trench. Backfill and compact trench. D. The filter fabric should be provided in continuous rolls and cut to the length of the Silt Fence to mini.mU.e the use of joints. When joints are necessary, the fabric should be spliced together only at a suppon post with a minimum 6 inch overlap, and sealed securely . 4211 -2/4 E. Inspect sediment filter barrier systems after each rainfall, daily dwin& periods of prolon&ed rainfall, and at a minimum once a week. Repair or replace damqed section immediately to restore the requirements of this Item. Remove sediment deposits when silt reaches one- third of the bei&ht of the fence in depth. 3.02 Measurement and Payment A. Unless indicated in the PROPOSAL FORMS as a pay item, no separate payment for wort performed under this Item. Include cost of work performed under this Item in Contract prices bid for items of which this work is a component. When indicat.ed in PROPOSAL FORMS u pay item measure and pay for the filter fabric fence by the linear feet of completed and accepted filter fabric fence between the limits of the be&inning and ending of wooden stakes. Filter fabric fence, measured as stated, will be paid for at the unit price bid for "Fdter Fabric Fence, Complete In Place". B. Payment for filter fabric fence will include and be full compensation for all labor, equipment, materials, supervision, and all incidental expenses for construction of these items, complete in place, including, but not limited to, protection of trees, maintenance requirements, repair and replacement of damaged sections, removal of sediment deposits , and removal of erosion and sedimentation control systems at the end of construction . 4211 -3/4 FILTER FABRIC FENCE 1. SET POSTS AT REQUIRKD SPACING 3. ST AXE FILTER JIA TERIAL ro STAKES AND EXTEND IT INTO TH8 TRENCH. EXT'ENS/ON 0, FABRIC lNT'O rR/lNCH. 2 . EXC4VA17: A 4•x4• rRENCH UPSLOPE ALDNC THE UNE OF STAKES. . 4 . BACXFIU AND COMPACT rH1: EXt"AVATED SOIL ALTERNA1'8 V-TRENCH EXTENSION 0, FABRIC INTO TRENCH. , . FLOr f'LOF z. 708-1· t ,. Jl1N. t POST'S ro B8 srr AT 3-FOO'f' JIAX1JIUll SPACING. 1' FACTORY PRZA SVJl8llD nNC6 rmt SUPPO/lf' Nl:nfNO IS USKD. SPACING 0, POST' MAY 118 INCRJlA!lllD ro a l'B8r llAXIJIUll. x-(§)-x SYJIBO£ 'ffHEN Tft1 S8CTIONS 0, Fll.'l'D CUJnl ADJOIN KACH OTH8R THrt SHOULD 88 OYl:RLAPPD ~ INCH88 AT 1'118 POSt'S. ITEM 4211 FILTER FABRIC FENCE AND 1'0LD8D. 4211 -4/4 ,. . ITEM NO. 4221 ·STRAW BALE FENCE PART 1 -GENERAL 1.01 Description This Item describes the installation of erosion and sedimentation control straw bale fences utilized during construction and prior to the final development of the site. 1.02 Related Work Related work as called for on PLANS or specified elsewhere in this or other TECHNICAL SPECIFICATIONS. PART 2 -PRODUCTS Provide materials as specified in PART 3. PART 3 -EXECUI'ION 3. 01 General A. Provide erosion and sedimentation control systems at the locations shown on PLANS. Such systems shall be of the type indicated and shall be constructed in accordance with the requirements shown on PLANS and set out in this Item. B. No clearin& and arubbin& or rou&h cuttina, other than is specifically directed by the Owner to allow soil testina and surveyina, shall be permitted until erosion and sedimentation control systems are in place. C. Maintain existin& erosion and sedimentation control systems located within the project site installed by others prior to start of construction under this comraci until acceptance of the project or until directed by the Owner to remove and discard the existina systems. D. Inspect and repair or replace components of all erosion and sedimentation control systems as specified for each type of system. Unless otherwise directed, maintain the erosion and sedimentation control systems until the project is accepted by the Owner. Remove erosion and sedimentation control systems promptly when directed by the Owner. Discard removed materials offsite. E. Remove and dispose sediment deposits at the project spoil site. If a project spoil site is not desianated on PLANS, dispose of sediment offsite at location not in or ldjacenc to stream or floodplain. Off-site disposal will be the responsibility of the Comnctor. Sediment to be placed at the project site should be spread, compacted and stabili7.ed in accordance with the Owners directions. Sediment shall not be allowed to flush into stream or dninqe way. If 4221 -1/4 sediment has been contaminated, it needs to be disposed of in accordance with existin& federal, state and local regulations . F. Equipment and vehicles shall be prohibited by the Contractor from maneuverin1 on areas outside of dedicated rights-<>f-way and easements for construction. Damages caused by construction traffic to erosion and sedimentation control system shall be repaired immediately . G . Contractor shall employ protective measures described in Item General Source Controls to avo id damage to existing trees to be retained on the project site. Conduct all construction operation under th is Contract in conformance with the erosion control practices described in that Item. 3.02 Construction Methods A . Provide straw bale fences at locations specified on PLANS in accordance with enclosed drawing . B . Straw bale fences shall be installed in such a manner that surface runoff will percolate through the system in sheet flow fashion and allow sediment to be retained and accumulated . C. Bales shall be bound by either wire, nylon, or polypropylene rope tied across the hay bales . Jute or cotton bindin& is not allowed. D. Bales shall be placed in a row with ends tightly abuttin1 the adjacent bales. Place bales with bindings parallel to ground surface. E . Each bale shall be embedded in the soil a minimum of 4 inches, where possible . F. Bales shall be securely anchored in place by 3/8-inch rebar stakes driven through the bales. The first stake in each bale shall be angled toward previously laid bale to force bales together. G. Fill the gaps between bales with straw to prevent water from escapin& between bales. Wedge carefully in order not to separate bales. H . Inspect straw bale fences after each rainfall, daily durin& periods of prolonaed rainfall, and at a minimum once a week. Repair or replace damqed section immediately to restore the requirements of this Item_ Remove sediment deposits when silt reaches one-third of the heiaht of the fence in depth. 3.03 Meat11rement and Payment A . Unless indicated in the PROPOSAL FORMS u a pay item, no separate payment for work performed under this Item. Include c:ost of work performed under this Item in Contract prices bid for items of which this work is a component. When indicated in PROPOSAL FORMS u pay item, measure and pay for straw bale barrier by the linear feet of 4221 -2/4 completed and accepted straw bale barrier. Straw bale barrier, measured u stated, will be paid for at the unit price bid for "Straw Bale Barrier, Complete la Place". B. Payment for straw bale fence will include and be full compensation for all labor, equipment, materials, supervision, and all incidental expenses for construction of these items, complete in place, includin&, but not limited to, embarkment and excavation, protection of trees, top soilin&, dust control, maintenance requirements, repair and replacement of damaged sections, removal of sediment deposiu, and removal of erosion · and sedimentation control systems at the end of construction . 4221-3/4 STRAW BALE FENCE STAKE COllPACTED EARTH 4 FLOff 4• VERTICAL FACE !1U VOIDS BETffEEN BALES 'ff1TH SURPWS STRAr--....._ SECTION ANGLE !7RST STAKE TO f'ARD PREVTOUSL Y LAID BALE 2 RE-BAR STAKES, I 1/8' TO 2' INTO GROUND. ANCHORING DETAIL f'IRE OR NYLON BOUND BALES PU.CED PARAU..EL TO GROUND GQfQW, NOTJS: 1. BAU:s SHALL 88 PLACED IN A ROff f'ml ENDS 11CHTLY ABU'IT1NG TH8 ADJACENT BAU:S. 1TLl. TH8 VOIDS BEnfUN BAU:S f'ml SURPLUS STRAW. PLAC8 BALES rml BINDING PARALUL ro GROUND SURFAC8. 2. 'llHa. POSSfBLI EACH BAU SHALL BB EJIBEDD8D IN TH8 SOIL A 11/NDIUll 01' 4 INCH88. 3. BAU:s SHALL B8 Sl:CUR8LY ANCHOR81J IN PLAa BY 3/a INCH RDAR STAXE!J DRl'IOI nlROUGH TH8 BAU/S. TH8 ITRST STAB IN EACH BAU SHALL 88 ANGu:D. ror~ nm PRrllOUS BAU ro FORa TH8 BALZS TOGt:T'HER. 4. BAU:s SHALL 88 BOUND BY 81THD rrR8 OR NYLON ROP8 TliD ACROSS TH8 HAY BAU:!J. 5. JIAJNT8NANC8 "1U. 88 PE/U'OtuaD A3 NE8D8D. x-8-x 710-1 SYllBO£ 4221 -4/4 ITEM 4221 STRAW BALE FENCE ITEM NO. en -HYDRO-MULCH SEEDING PART 1 -GENERAL 1.01 Description A . Scope : The work covered by this Item con.sisu of fumishin& all plant, labor, materials , equipment, supplies, supervision and tools, and performin& all work necessary for topsoiling, smoothing, seeding, fertilizin&, watering, maintenance, and cleanup of all areas disturbed during construction, all in accordance with the drawings and TECHNICAL SPECIFICATIONS . B . General : The hydro-mulch seeding operations, together with all other necessary related work, to conform to the requirements specified in this Item. The area to be hydro-mulch seeded to be noted on PLANS. PART 2 -PRODUCfS 2.01 Materials A. Seed: All seed must meet the requirements of U.S. Department of Aariculture Rules and Regulations as set forth in Federal Seed Act and Texas Seed Law. Type of seed, purity and germination requiremenu, rate of application, and planting dates are u follows: Plantin1 Rate Pounds Application Type per Acre Date 1. Hulled Common Bermuda 40 Jan. 1 to Grass 98/88 Apr. 15 Unhulled Common Bermuda 40 Grass 98/88 Annual Rye Grass (Gulf) so 2. Hulled Common Bermuda 40 Apr. 15 Grass 98/88 to Oct. 1 3. Hulled Common Bermuda 40 Oct. 1 to Grass 98/88 Jan. 1 Unhulled Common Bermuda 40 Grass 98/88 Annual Rye Grass (Gulf) 30 B. Fertilizer: Fertilizer to be water soluble with analysis of 10 percent nitroaen, 20 percent phosphoric acid, and 10 percent potash. Rate of application to be 1SO pounds per acre except during the periods of April lS throu&h September 1, when the rare to be reduced to 600 pounds per acre. 4241 -1/3 C. Mulch : Mulch to be virgin wood cellulose fiber made from whole wood chips. Within the fiber mulch material, at least 20 percent of the fibers will be 10. 7 mm in length and 0.27 mm in diameter . Rate of application to be 2,000 pounds per acre . Soil stabilizers such as Terra Type m (or approved equal) to be applied at a rate of 40 pounds per acre on side slopes and •Terra T ack r (or approved equal) to be applied at a rate of 40 pounds per acre in the flatter, upper portions of channel areas . PART 3 -EXEcurION 3.01 General A . Provide erosion and sedimentation control systems at the locations shown on PLANS. Such systems shall be of the type indicated and shall be constructed in accordance with the requiremenu shown on PLANS and set out in this Item . B . No clearing and grubbing or rough cutting, other than as specifically directed by the Owner to allow soil testing and surveying, shall be permitted until erosion and sedimentation control systems are in place . C. Maintain existing erosion and sedimentation control systems located within the project site installed by others prior to start of construction under this contract until acceptance of the project or until directed by the Owner to remove and d iscard the existing systems . D. Inspect and repair or rep lace components of all erosion and sedimentation control systems as specified for each type of system. Unless otherwise directed, maintain the erosion and sedimentation control systems until the project is accepted by the Owner. Remove erosion and sedimentation control systems promptly when directed by the Owner. Discard removed materials offsite. E . Remove and dispose of sediment deposits at the project spoil site . If a project spoil site is not designated on PLANS, dispose of sediment offsite at location not in or adjacent to stream or floodplain. Off-site disposal will be the responsibility of the Contractor. Sedimem to be placed at the project site should be spread, compacted and stabilized in accordance with the Owner's direc::tions . Sedimem shall not be allowed to flush into stream or drainage way. If sediment has been contaminated, it needs to be disposed of in accordance with existin1 federal, state and local reaulations. F . Equipment and vehicles shall be prohibited by the Contractor from maneuverin1 on areas outside of dedicated ri&hts-of-way and easements for construction. Damqes caused by construction traffic to erosion and sedimentation control systems shall be repaired immediately. G. Contractor shall employ protective measures described in Item General Source Controls to avoid damqe to existin& trees to be retained on the project site. Conduct all construction operations under this Contract in conformance with the erosion comrol practices descnbed in that Item. 4241 -2/3 3.02 Coastructioa Metbo<h After areas to receive hydro-mulch seeding have been completed to lines, andes, and sections shown on PLANS, apply seed, fertilizer and mulch at uniform averaae rates indicated in Section 2 .01 Materials . 3.03 Maintenance The hydro-mulch seeding to be adequately watered until established . Any areas damaged by erosion or areas that do not have an acceptable turfma to be reseeded . 3.04 Measurement and Payment Measure by square yard as indicated in PROPOSAL. Payment for work under this Item will be made at Contract price for •uy~Mulch Sttdin1, • which price to be full compensation for all fertilizer , seed, equipment , materials, and labor necessary for fertilizing and seeding. 4241 -3/3 rraM NO. 4711 • STABILIZED CONSTRUCTION EXIT PART 1 • GENERAL 1.01 Description This Item describes the installation of erosion and sedimentation control stabilized construction exits utilized durin& construction and prior to the final development of the site . 1.02 Related Work Related work as called for on PLANS or specified elsewhere in this or other TECHNICAL SPECIFICATIONS. 1.03 Submittals A. Manufacturer's catalogue sheets and other pertinent information on aeotextile fabric . B. Sieve analysis of aggregates conformin& to requirements of this Item . PART 2 • PRODUCfS 2.01 2.02 A. B. Separation Geotextile Provide woven or nonwoven geotextile fabric made of either polypropylene, polyethylene, ethylene, or polyamide material . Geotextile fabric shall have a minimum &rab strength of 270 psi in any principal direction (ASTM D-4632) and the equivalent openin& size specified on PLANS. Both the aeotextile and threads shall be resistant to chemical attack, mildew and rot. Coarse Aarqates Coarse aure&ates shall consist of crushed stone, &ravel, crushed blast furnace slq, or combinations thereof. Particles shall compose of clean, hard, durable materials free from adherent coatings, salt, alkali, dirt, clay, loam, shale, soft or flaky materials, or oraanic and injurious matter. Coarse aggregates shall conform to the followin& &radation requirements. Sieve Siu (Square Mesh) 2-11r r 1-112· 314· No .4 4711 -1/5 Percent Retained (By Wei&ht) 0 0-20 1S -so 60-80 9S -100 2.03 Materials ror Alternative Construction Methodt Use materials spec ified in PART 3 -3 .02.J . PART 3 -EXEcurION 3.01 General A . Provide erosion and sedimentation control systems at the locations shown on PLANS . Such systems shall be of the type indicated and shall be constructed in accordance with the requirements shown on PLANS and set out in this Item. B . No clearing and grubbing or rough cutting, other than as specifically directed by the Owner to allow soil testing and surveying, shall be permitted until erosion and sedimentation control systems are in place . C. Maintain existing erosion and sedimentation control systems located within the project site installed by others prior to start of construction under this contract until acceptance of the project or until directed by the Owner to remove and discard the existing system. D . Inspect and repair or replace components of all erosion and sedimentation control systems as specified for each type of system . Unless otherwise directed, maintain the erosion and sedimentation control systems until the project is accepted by the Owner. Remove erosion and sedimentation control systems promptly when directed by the Owner. Discard removed materials offsite. E . Remove and dispose sediment deposits at the project spoil site. If a project spoil site is not desi&JWed on PLANS, dispose of sediment offsite at location not in or adjacent to stream or floodplain. Off-site disposal will be the responsibility of the Contractor. Sediment to be placed at the project site should be spread, compacted and stabiliz.ed in accordance with the Owner 's directions. Sediment shall not be allowed to flush into stream or drainage way. If sediment has been contaminated, it needs to be disposed of in accordance with existing federal, state and local regulations .· F. Equipment and vehicles shall be prohibited by the Contractor from maneuverin& on areas outside of dedicated ri&}lts-of-way and easements for construction. Damaaes caused by construction traffic to erosion and sedimentation control systems shall be repaired immediately. G. Contractor shall employ protective measures described in Item General Source Controls to avoid damqe to existina trees to be retained on the project site. Conduct all construction operation under this Contract in conformance with the erosion control practices described in that Item. 3.02 Coastrudioa Metbodl A. Provide stabiliz.ed access roads, subdivision roads, parkina areas, and other on-site vehicle transportation routes when shown on PLANS. 4711 -2/5 ) ) B . Provide stabilized construction exits, and truck washin& areas when 1pproved by owner, of the siz.es and locations shown on PLANS . Construction traffic shall not be allowed to leave construction site and move directly onto public roadway, alley, sidewalk, parkina area, or other ri&ht~f-way in areas other than at locations of stabilized construction exits . C . Vehicles leaving construction areas shall have their tires cleaned to remove sediment prior to entrance onto public ri&ht~f-way . When wuhin& is needed to remove sediment, Contractor shall construct a truck washin& area. Truck washin& shall be done on stabilized areas which drain into sediment traps . D . Detail for stabilized construction exit is shown in Drawin& attached at the end of this Item . Use the same specifications for construction of all other stabilized areas . Roadway width shall be at least 14 feet for one-way traffic and 20 feet for two-way traffic and shall be sufficient for all in&ress and egress . Furnish and place aeotextile fabric as a permeable separator to prevent mixing of coarse aggregate with underlaying soil . Exposure of aeotextile fabric to the elements between laydown and cover shall be a maximum of fourteen days to minimize damage potential . E . Roads and parking areas shall be graded to provide sufficient drainage away from stabilized areas . Use sand bags, gravel, boards, or similar methods to prevent sediment from entering public right~f-way, storm drain, ditch, and watercourse. F. The stabilized areas shall be inspected and maintained daily . Provide periodic top dressing with additional coarse aggregates to maintain the required depth . Repair and cleanout damaged measures used to trap sediment. All sediment spilled, dropped, washed, or tracked onto public right~f-way shall be removed immediately. G . The length of the stabilized area shall be as shown on PLANS, but not less than SO feet. The thickness shall not be less than 8 inches . The width shall not be less than full width of all points of ingress or egress. H . Stabilization for other areas shall have the same course aure&ate, thickness, and width requirements as the stabilized construction exit, except where specified otherwise on PLANS. I. Stabilized area may be widened or len&thened to accommodate truck wuhin& area when authorized by Owner. Outlet Sediment Trap must be provided for truck washin& area. 1. Alternative methods of construction may be utilized when shown on plans, indicated on a special provision to this Item, or when approved by the Owner. These methods include the following. 1. Cement Stabilized Soil -Compacted, cement stabilized soil, limestone aure&ate or other fill material in an application thickness of at leut 8 inches . 2. Wood Mats/Mud Mats -Oak or other hardwood timbers placed ed&e to ed&e and across support wooden beams which are placed on top of existina soil in an application thickness of at least 6 inches. 3. Steel Mats -Perforated mats placed across perpendicular support members . 4711 -3/5 3.03 Meuurement and Payment A. Unless indicated in the PROPOSAL FORMS u a pay item, no separate payment for work performed under this Item. Include cost of work performed under this Item in Contract prices bid for items of which this work is a component. When indicated in PROPOSAL FORMS as pay item, measure and pay for stabilized construction roads, parkin1 areas, exits, and truck washinl area, if provided, by the square yard of qare1ate placed in 8-inch layer. Stabil.iz.ed construction roads, parkin& areas, exits, and truck washin& area, if provided, mea!ured as stated , will be paid for at the unit price bid for "Stabiliud Construction Road & Exit, Complete ID Place". B. Payment for stabilized construction roadJ, parkin& areas, exits, and truck wa.shin1 areas will include and be full compensation for all labor, equipment, materials, supervision , and all incidental expenses for construction of these items, complete in place, including, but not limited to, embark:ment and excavation, protection of trees, maintenance requirements, repair and replacement of damaged sections, removal of sediment depo.sits, redressing of agregates and stones, and removal of erosion and sedimentation control systems at the end of construction. 4711-4/5 STABILIZED CONSTRUCTION EXIT EXlSTING GROUND I """~t-------60-· _ltll._N._. -----.. +rc;~ ... r SEP ERA TIOH GEOTEXT!LE FABRIC /'OR l'UU 1flDTH AND LENGTH 01' EXIT EXISTING GROUND GINIRAL NOTES; 1~ PROFILE GRADED ro PREVENT RUN-OFF FROj/ LEA V1NC SITE PROVIDE APPROPRIATE f1WIST110N BET'JfEEN STABIUZED CONSTRUCTION ENTRANCE AND PUBUC RlGHT-OF-rA'f, 60' ION. PUBUC FLAN VIEW 1. LENGTH SHALL BE AS SHOrrN ON THE CONS'l'RUCTION DRA'fflNGS, BCJ'I' NOT U:SS f'HAN 60 n:rr. Z. THICKNESS SHALL B8 NOT U:SS f'HAN B INCHES. 3 . JflDTH SHAU B8 NOT U:SS THAN FUU JflDTH OF AU POINTS OF INGRESS OR t:GIU:SS. 4. STABIUZATION FOR OTHER AR8AS SHAU HA'/8 rm: SAJIE ACGRl:CA1'8 77llCKN8SS AND JflDTH REQUIREJIENTS AS 77IE STABIUZED CONS'l'RUCTION 8X11'. UNUSS O'f"H8lnflSB SHOJfN ON THE CONS'l'RUC170N DRAJflNGS. 6 . STABJUZED AREA MAY BE rnDBNED OR LENCf'HBNED ro ACCOJIODAn: A f'RUCX rA!JHINC AREA. FHEN SHOJfN ON f71E CONS'l'RUGTION DRA 'fflNC. AN OCJ'l'l.Zt' S8D/118NT f'RAP JIUST BE PROVIDED FOR THE TRUCK rASH/NC AREA. ~ ITEM 4711 STABILIZED CONSTRUCTION EXIT 724-1 SYJIBOL 4711 -5/5 INSPECTOR CBRTIPICATION I certify under penalty of law that this document and al~ attachments were prepared under· my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. Signed:~~~~~~~~~~~~~~~~~~ (Name) (Title) (Company) LOCATIOll BOTTCJ4 OF FABRIC STILL BURIED? ST ORJ4 WA TER POLLUT IOlll PREVENT ION PL AJI INSPECTION AMO MAINTENAMCE REPOIT FABRIC TOlll OR SAGGING? STRUCTURAL CONTRot.S FILTER FABRIC FENCE: POSTS TIPPING OVER? ICAINTENAMCE REQUIRED FOi SILT FENCE: TO BE PERFORMED IT: _________ Oii OI IEFOIE: ________ _ HOW DEEP IS THE SEDIMENT? ( c ( FllCIC TO S T Oii~ WATE R POl LU Tl ON PREVEN TI ON PLAN I NSPE CTI ON AMO ICA!N TENAMCE REPOR T STRUCTURAL CONTROLS T~Y DIVERSION S\ilALE : STAI I LI ZED? EVIDENCE OF WASHQJT OI OVER·TOPPING? ICAINTENAMCE REQUIRED FOii TEMPOltARY DIVERSION SWALE: TO BE PERFOIMED BY: _________ OM OI BEFOIE: ________ _ STOltM WA TER POLLUTloel PREV£WTJON PL.AM INSPECTION AMO NAlllTEllAMCE REPOltT lllSP£CTOI: _______________ _ DAYS SINCE LAST RAINFALL: _________ _ AMOUNT OF LAST UlllFALL:~INCHES AIEA DATE SINCE LAST DISTURBED STABILIZATIOll REQUIRED: STAllLIZATIOll ICEASURES DATE OF NEXT DISTURBANCE ST AB I LI ZED? STABILIZED WITH TO BE PERFORMED BY: _________ Oii OI BEFOIE: ________ _ CONDITION STORM WATER POLLUT !Otl PRE VEWTI Oll PLM INSPECTIOll AMO MAINTEWAJICE REPORT STRUCTURAL CONTllOlS INSPECTOlt'S INITIALS: __________ _ CATE: _________ _ FllCM TO OIVHSIOll OIKES AMO SWALES: STABILIZED? EVIDENCE OF WASHClJT OA OVEll·TOPPIWG? MAINTENANCE REQUIRED FOi DIVERS I Oll DIKES AMO SWALES: TO BE PERFORMED IY: _________ Oii OI BEFOltE: ________ _ TRAP LOCATION DEPTH OF SEDIMENT Ill TRAP STatM WATER POLLUTION PREVENTION PLAJI lllSPECTICll AND MAlllTENAMCE REPOIT STRUCTWAL COllTROlS EXCAVATED EAJtTH OUTLET SEDIMENT TRAPS: CONDITION OF TRAP SIDE SLOPES CCllD IT I ON Of OUTFALL FRC>I TRAP MAINTENANCE REQUIRED FOlt SEDIMENT TRAP: TO BE PERFOltMED BY: ________ ell Olt HfOltE: _______ _ LOCATION I N PLACE?/ CONDITION? STORM llA TER POL LU TION PRE VEN TI C* PL .AJI INSPECTION AHO MAINTENAMCE REPORT DEPTH OF SEO INENT STRUCTURAL CONTROLS INLET PROTECTION BARRIERS: COND IT I ON OF INLET MA I NTENAMCE REQUIRED FOR INLET PROTECTION BARRIER: TO BE PERFORMED B'f : _________ Olf OR BEFORE: ________ _ STORM WATER POLLUTION PREvtNTION PLAM INSPECTION AllD MAIMTEllAJICE IEPOllT CIWIGES IECIJIRED TO THE POlLUTION PIEvtNTION PL.UI: REASONS FOR CHANCES: INSPECTOR'S SIGNATURE: ___________ _ Sep tember 17 , 1992 5 .0 Nog-Storm Water Dischar&es Invegtocy for Po!lutjog Preventiog Plan The following substances listed below are expected to be present onsite during construction: Concrete Detergents Fertilizers Spill Preventiog Fuels Lubricants Wood The following are the material management practices that will be used to reduce the risk of spills or other accidental exposure of the materials and substances described above to storm water runoff. Good Housekeeping The following good housekeeping practices will be followed onsite during the construction project. 1. An effort will be made to store only enough product required to do the job. 2. All materials stored onsite will be stored in a neat, orderly manner in their appropriate containers an, if possible, under a roof or other enclosure. 3. Products will be kept in their original containers with the original manufacturer's label. 4 . Substances will not be mixed with one another unless recommended by the manufacturer. S. Whenever possible, all of a product will be used up before disposing of the container. 6. Manufacturers' recommendations for proper use and disposal will be followed. 7. The site superintendent will inspect daily to eoswe proper use and disposal of materials onsite. Hauudou.r Producu These practices will be used to reduce the risks associated with hazardous materials, if bazardout materials are used. 1. Products will be kept in original containers unless they are not resealable. 2. Oriainal labels and material safety data will be retained. 3. If surplus product must be disposed of, manufacturers' or local and State recommended methods for proper disposal will be followed . Product SfMciftc Practicu The product specific practices to be followed are listed iD Table 1. Spill Prewniion Practicu The spill prevention practices to be followed are listed iD Table 1. APPENDIX B.1 -9 LOCATION IOTTCIC OF FABRIC STILL IURIED? STORM WATER POlLUTIOll PREV!llTIOll PLAN INSPECTIOll AJIO MAINTENANCE REPORT STRUCTUIAL CONTROlS REINFORCED FILTER FAIRIC IAIRIER: FABRIC TORN OR SAGGING? · POSTS TIPPING OVER? MAINTENANCE REQUIRED FOR REINFORCED FILTER FABRIC IAIRIER: TO BE PERFORMED BY: _________ Oii OR BEFORE: ________ _ MOW DEEP IS THE SEDIMENT? LOCATIOll COllO IT I Oii STORJ4 './ATER P<:llLUT !ON PREVEllT!C* PLAM !NSPECT !ON AND ~!NTENAMCE RE?al T Ill PLACE? OTHER COllTROlS STRAW BALES: HOW DEEP IS THE SEDIMENT? MAINTENMICE REQUIRED FOR STRAW BALES: TO BE PERFORMED BY: ________ Oii OR IEFORE: _______ _ DOES 11.JCH SEO I NENT GET TRACKED ONTO ROAD? STClaM WATER PCLLUTI Ciel PREVUH l Ciel PLAll lllSPECTIC* AND MAINTENAj!Cf REPOllT OTHER COllTROU STABILIZED CONSTRUCTION ENTRANCE/STAGING AREA: ENTRY SURFACE CLEAN OR SEDINENT FILLED? DOES ALL TRAFFIC USE ENTRANCE? MAINTENANCE REQUIRED FOR STABILIZED CONSTRUCTION ENTRANCE/STAGING AREA: TO BE PERFORMED BY: _________ ON OR BEFORE: ________ _ LOCATION CONOITION STORM ~T ER PO LLUTI OM PRE VEM TIOM ?LAM INSPECTION AMO ~INTEMANCE REPORT OTHER CONTROLS PROTECTION OF TREES IN CONSTRUCTION AREAS: IN PLACE? ~INTENAHCE REQUIRED FOlt TREE PROTECTION: TO BE PERFORMED IY: _________ ON OR BEFOltE: ________ _ = --- -- ..,, -= = --- ---- =----- -- -= = - ---------------------~ F9i = = = .= -= -;;.,.,,, --== 'g"' i - ! '!. = -:.._a s~ --== ~ -. -' = Monday July 6, 1998 Part II Environmental Protection Agency Reissuance of NPDES General Permits for Storm Water Discharges From Construction Activities in Region 6; Notice 36489 ·- 36490 Federal Register I Vol. 6 3. No. 128 I M onday. J ul y 6 . l 998 / l\o t ices ENVIRONMENTAL PROTECTION AGENCY [FRL-611 ~7) Reissuance of NPDES General Permits for Storm Water Discharges from Construction Activities in Region 6 AGENCY: En v ironmental Protection Agency (EPA). ACTION: Notice of final NPDES gene ra l permits . SUMMARY: Region 6 is issuing the final National Pollutant Discharge Elimination System (NPDES) general permits for storm water discharges associated with construction activity in Region 6 . EPA first issued permits for these activities in September 1992 . These permits subsequently expired in September 1997 . Today 's permits. which replace those ex pired permits , are similar to the permits issued in 1992. The main changes from those 1992 permits are summarized in the SUPPLEMENTARY INFORMATION section. below. ADDRESSES:Theindextothe administrative record and the complete administrative record are available at the Water Docket. MC-4101. U .S . EPA . 401 M Street SW. Washington. DC 20460. Copies of information in the record are available upon request. A reasonable fee may be charged for copying. The index to the administrative record is also available from EPA Region 6, Water Quality Protection Division, Customer Service Branch (6WQ-CA) 1445 Ross Avenue. Suite 1200 , Dallas. TX 75202 . DATES: These general permits shall be effective on July 6. 1998 . NOTICE OF INTENT: A NOTICE OF INTENT (NOi) FORM MUST BE SUBMITIED TO OBTAIN COVERAGE FOR STORM WATER DISCHARGES UNDER THESE PERMITS. THE NOi FORM IS GIVEN IN ADDENDUM C OF THESE PERMITS. DEADLINES FOR SUBMITIAL OF NOl'S ARE PROVIDED IN PART II.A OF THE PERMITS. FOR FURTHER INFORMATION CONTACT: For further information on the NPDES Construction General Permits. call the EPA Region 6 Storm Water Hotline at 1- 800-245-6510 . Information is also available through the EPA Region 6's storm water web site at "http:// www.epa.gov/region6/sw/ and on the PIPES bulletin board web site at "http :/ /pipes .ehsg .saic.com/pipes.htm ". SUPPLEMENT ARY INFORMATION: Contents I. Introduction II. Answers to Common Questions III. Section 401 Certification and Coastal Zone Management Act IV. Endangered Species Procc c t ion V. Histor ic Properties Protec ti o n VI. Regulatory Rev iew (Executive Order 12 866) VII. Unfunded Manda tes Reform Act VIII. Pape rwork Redu ct ion Act IX. Reg ulatory Fle xibility Ac t I. Introduction The United States En v ironmental Protection Agency Reg ion 6 office is rei ssuing the general permits which authorizes the discharge storm water associated with construction activity . As us ed in this permit. "storm water associated with construction activity" means construction activity disturbing at least five acres. or construction ac tivity disturbing less than five acres w hich is part of a larger common plan of development or sale with the potential to disturb cumulatively five or more acres (See 40 CFR l 22 .26(b) (l 4)(x)). These permits replace the previous Baseline Construction General Permits which were issued for a five-year term in September 1992 . The most significant changes from the 1992 permits are : ...... New conditions to protect listed endangered and threatened species and critical habitats ; ...... Expanded coverage to construction sites under five acres of disturbed land which are not part of a larger common plan of development or sale when an operator has been designated by the Director to obtain coverage . ...... A requirement to post at the construction site the confirmation of permit coverage (the permit number or copy of the Notice of Intent (NOD if a permit number has not yet been assigned) including a brief description of the project; ...... Storm water pollution prevention plan performance objectives have been added. These general permits for storm water discharges associated with construction activity was proposed on June 2, 1997 (62 FR 29786). and are hereby issued for the following areas in Region 6 : The States of New Mexico and Texas; Indian Country lands in Louisiana. Oklahoma. Texas and New Mexico (except Navajo Reservation Lands and Ute Mountain Reservation Lands); and oil and gas c onstruction in the State of Oklahoma. II. Answers to Common Questions In this section. EPA provides answers to some of the more common questions on the construction storm water permitting program . These answers are fa irly broad and may not take into ac count all scenarios possible at construction sites. More details on these issues are provided at 63 FR 7858 (Fe brua ry 17. 1998) in the "Summa ry of Responses to Co mm e nt s on the Proposed Pe rm it " s ect ion of th e re issuance of NPDES Ge n e ral Permits From Cons t ru ct ion Acti v ities for Regions I. 2. 3 . 7 . 8 . 9 and 10. How do I Kn ow if I Need a Permit? You need a s torm water permit if y ou can be conside red an "operator" of the construction activ ity that would result in the "discharge of storm water associated with construction activity ." You must become a permittee if you meet either of the following two criteria : ...... You ha ve operational control of construction project plans and specifications . including the ability to make modifications to t hose plans and specifications: or ...... You have day -to -day operational control of those activities at a project which are necessary to ensure compliance w ith a storm water pollution prevention plan (SWPPP) for the site or other permit conditions (e .g .. you are authorized to direct workers at a site to carry out activities required by the SWPPP or comply with other permit conditions). There may be more than one party at a site performing the tasks relating to "operational control " as defined above . Depending on the site and the relationship between the parties (e .g .. owner, developer). there can either be a single party acting as site operator and consequently be responsible for obtaining permit coverage, or there can be two or more operators with all needing permit coverage . The following are three general operator scenarios (variations on any of the three are possible as the number of "owners" and contractors increases): ...... Owner as Sole Permittee. The property owner designs the structures for the site. develops and implements the SWPPP. and serves as general contractor (or has an on-site representative with full authority to direct day-to-day operations). He may be the only party that needs a permit. in which case everyone else on the site may be considered subcontractors and not need permit coverage . ...... Contractor as Sole Permittee. The property owner hires a construction company to design the project . prepare the SWPPP . and supervise implementation of the plan and compliance with the permit (e.g .. a "turnkey" project). Here. the contractor would be the only party needing a permit. It is under this scenario that an individual having a personal residence built for his own use (e.g .. not those to be sold for profit or used as rental property) would not be considered an Federal Register I Vol. 63. No . 128 I Monday. July 6. 1998 /No tices 36491 operator . EPA believes that the general contracto r. being a professional in the building industry. should be the entity rather than the individual who is better equi pped to meet the requirements of both applying for permit coverage and developing and properly implementing a SWPPP. However. individuals would meet the definition of "operator" and require permit coverage in instances where they perform general contracting duties for construction of their personal residences. ..... Owner and Contractor as Co- Permittees. The owner retains control over any changes to site plans. SWPPPs. or storm water conveyance or control designs; but the contractor is responsible for overseeing actual earth disturbing activities and daily implementation of SWPPP and other permit conditions. In this case. both parties may need coverage . However. you are probably not an operator and subsequently do not need permit coverage if: ..... You are a subcontractor hired by. and under the supervision of. the owner or a general contractor (i.e .. if the contractor directs your activities on-site . you probably are not an operator); or ..... your activities on site result in earth disturbance and you are not legally a subcontractor , but a SWPPP specifically identifies someone other than you (or your subcontractor) as the party having operational control to address the impacts your activities may have on storm water quality (i.e .. another operator has assumed responsibility for the impacts of your construction activities). This particular provision will apply to most utility service line installations. For further information concerning whether utility service line installations meet the definition of operator and require permit coverage. see the discussion under "Installation of Utility Service Lines" in Section VIII . Summary Response to Public Comments of the Fact Sheet. In addition. for purposes of this permit and determining who is an operator. "owner" refers to the party that owns the structure being built. Ownership of the land where construction is occurring does not necessarily imply the property owner is an operator (e .g .. a landowner whose property is being disturbed by construction of a gas pipeline). Likewise. if the erection of a structure has been contracted for, but possession of the title or lease to the land or structure is not to occur until after construction, the .would -be owner may not be considered an operator (e.g .. having a house built by a residential homebuilder). My Projec t Will Disturb Less Than Fi ve Acres. but it May Be Part of a "Larger Common Pl an of Development or Sale ... How Can I Tell and What Must I do? If your smaller project is part of a larger common plan of development or sale that collectively will disturb five or more acres (e.g .. you are building on six half-acre residential lots in a 10-acre development or are putting in a parking lot in a large retail center) you need permit coverage . The "plan" in a common plan of development or sale is broadly defined as any announcement or piece of documentation (i ncluding a sign. public notice or hearing. sales pitch. advertisement, drawing . permit application. zoning request. computer design. etc.) or physical demarcation (including boundary signs. lot stakes. surveyor markings . etc .) indicating construction activities may occur on a specific plot. You must still meet the definition of operator in order to be required to get permit coverage. regardless of the acreage you personally disturb . As a subcontractor. it is unlikely you would need a permit. For some situations where less than five acres of the original common plan of development remain undeveloped . a permit may not be needed for the construction projects "filling in" the last parts of the common plan of development. A case in which a permit would not be needed is where several empty lots totaling less than five acres remain after the rest of the project had been completed. providing stabilization had also been completed for the entire project. However. if the total area of all the undeveloped lots in the original common plan of development was more than five acres, a permit would be needed. When Can You Consider Future Construction on a Property To Be Part of a Separate Plan of Development or Sale? In many cases. a common plan of development or sale consists of many small construction projects that collectively add up to five (5) or more acres of total disturbed land. For example, an original common plan of development for a residential subdivision might lay out the streets. house lots. and areas for parks . schools and commercial development that the developer plans to build or sell to others for development. All these areas would remain part of the common plan of development or sale until the intended construction occurs . After this initial plan is completed for a particular parcel. an y subsequent develop ment or redevelopment of that parcel would be rega rded as a new plan o f development. and would then be subject to the fi ve- acre c utoff for storm water permitting . What Must I do to Satisfy The Permit Eligibility Requirements Related to Endangered Species? In order to be eligible for this permit, yo u must follow the procedures and examples found in Addendum A for the protection of endangered species. You cannot submit your NO! until yo u are able to certify your eligibility for the permit. Enough lead time should be built into your project schedule to accomplish these procedures. If another operator has certified eligibility for the project (or at least the portion of the project you will be working on) in his NOL you will usually be able to rely on his certification of project eligibility and not have to repeat the process . EPA created this "coat tail" eligibility option for protection of endangered species to allow the site developer/owner to obtain up-front "clea rance " for a project. thereby avoiding duplication of effort by his contractors and unnecessary delays in construction . What Does the Permit Require Regarding Historic Preservation? Today's permit does not currently impose requirements related to historic preservation. though EPA may modify the permit at a later date after further discussions with the Advisory Council on Historic Preservation. Therefore. under today's permit. EPA will conduct consultations as it did under the pre- existing Baseline Construction General Permit on a case-by-case basis as needed . Removal of the proposed permit provisions related to historic preservation in no way relieves applicants and permittees of their obligations to comply with applicable State. Tribal or local laws for the preservation of historic properties . EPA reminds permittees that according to section l lO(k) of the National Historic Preservation Act (NHPA). an intentional action to significantly adversely affect historic resources with intent to avoid Federal historic preservation requirements may jeopardize future permit coverage for such a permittee. How Many Notices of Intent (NO!s) Must I Submit? Where and When Are They Sent? You only need to submit one NO! to cover all activities on any one common plan of development or sale . The site map y ou develop for the storm water pollution prevention plan identifies which parts of the overall project are 36492 Federal Reg is ter /Vol. 6 3 . No . 128 /Mo nday . Ju ly 6. 1998 /i\o t ices unde r yo ur control. Fo r ex ample . if yo u a re a homebuilder in a re s idential d evelopment. y ou need s ubmit only o ne NOi to cover all y o ur lo ts . e ven if they a re on opposite sides of th e development. The NOi must be po s tmarked two day s before you begin w ork on site. The address for submitting NOis is found in the instruction portion o f the NO! form and in Part II .C. of the CGP . You must also look in Part X of the permit to determine if copies of the NOI form are to be sent to a State or Indian Tribe. If I Am on an ongoing Construction Project, do I Have to Fill in a New NOI To Be Covered by the Permit? Yes . if you are on an ongoing construction project, a construction project which started prior to the effective date of this permit. you must complete a revised NOI Form (EPA Form 3510-9) to obtain coverage under this permit. However , applicants who have previously submitted an NO! for permit coverage prior to the effective date of this permit have the option to leave the section regarding Addendum A on endangered species blank unless there is a potential impact on endangered species or their habitat. How do I Know Which Permit Conditions Apply to Me? You are responsible for complying with all parts of the permit that are applicable to the construction activities you perform . Part Ill .E. of the permit defines the roles of various operators at a site . In addition. several States and Indian Tribes require alternative or additional permit conditions. and these can be found in Part X of the permit. Do I Have Flexibility in Preparing the Storm Water Pollution Prevention Plan (SWPPP) and Selecting Best Management Practices (BMPs) for My Site? Storm water pollution prevention plan requirements were designed to allow maximum flexibility to develop the needed storm water controls based on the specifics of the site . Some of the factors you might consider include: more stringent local development requirements and/or building codes ; precipitation patterns for the area at the time the project will be underway; soil types ; slopes; layout of structures for the site; sensitivity of nearby water bodies ; safety concerns of the storm water controls (e.g .. potential hazards of water in storm water retention ponds to the safety of children; the potential of drawing birds to retention ponds and the hazards they pose to aircraft); and coordination with other site operators . Must Every Permittee Have His Own Separate SWPPP or Is a joint Plan Allowed? The only require me nt is that there be at least one SWPPP for a site whi c h incorporates the requ ired elements fo r all operators . but there can be separa te plans if individual permittees so des ir e . EPA encourages permittees to explore possible cost sa vings by having a join t SWPPP for several operators . For example , the prime developer could assume the inspection responsibilities for the entire site , while each homebuilder shares in the installation a nd maintenance of sediment traps serving common areas . If a Project Will Not Be Completed Before This Permit Expires. How Can I Keep Permit Coverage ? If the permit is reissued or replaced with a new one before the current one ex pires. you will need to comply with whatever conditions the new permit requires in order to transition coverage from the old permit. This usually includes submitting a new NO!. If the permit expires before a replacement permit can be issued. the permit will be administratively "continued." You are a utomatically covered under the continued permit. without needing to submit anything to EPA. until the earliest of: ..... The permit being reissued or replaced; ..... Submittal of a Notice of Termination (NOT); ..... Issuance of an individual permit for your activity; or ..... The Director issues a formal decision not to reissue the permit, at which time you must seek coverage under an alternative permit. When Can I Terminate Permit Coverage? Can I Terminate Coverage (i .e., Liability for Permit Compliance) Before the Entire Project Is Finished? You can submit an NOT for your portion of a site providing: (1) You have ac hieved final stabilization of the portion of the site for which you are a permittee (including . if applicable. returning agricultural land to its pre- construction agricultural use); (2) a nother operator/permittee has assumed control according to Part VI.G .2.c . of the permit over all areas of the site that have not been finally stabilized which you were responsible for (for example, a developer can pass permit responsibility for lots in a subdivision to the homebuilder who purchases those lots . providing the homebuilder has filed his . own NOi); or (3) for residential construction only . you have completed te mpo ra ry s ta b il ization and th e re sidence has been trans fe rred to the ho me ow ner . III . Section 40 l Certification and Coastal Zone Management Act Section 40 I of the Clean Water Act states that EPA may not issue an NPDES permit until the State in which the discharge will originate grants or waives ce rtification to ensure compliance with appropriate requirements of the Act and State law . The Region has received section 40 I ce rtification from the a ppropriate States and Indian Tribes for all facilities covered by today 's permits . Additional permit requirements were required as a condition of certification by the State of Texas and by the Pueblos of lsleta . Nambe . Picuris , Pojoaque. Sandia. Tesuque and Santa Clara in New Mexico. These additional permit requirements are contained in Part X of the permits . The Coastal Zone Management Act (CZMA) requires all Federal permitting actions to be reviewed for consistency with each approved State Coastal Zone Management Plan . Texas is the only State covered by these permits that has an approved Coastal Zone Management Plan . EPA Region 6 has determined that the permit is consistent with the Texas Coastal Zone Management Plan. The Texas Coastal Zone Management Plan procedures for Federal consistency with Coastal Management Program goals and policies (31 TAC 506 .12) state that if an activity requiring a state agency or subdivision action above thresholds requires an equivalent Federal permit. the Texas Coastal Coordination Council may determine the consistency of the state agency/subdivision action or the Federal permit, but not both. Permittees whose construction projects are located within the boundary of the Texas Coastal Management Program above thresholds will be required, as a part of pre-construction project approval. to have a consistency review by the Texas Council. An additional consistency review by the Texas Coastal Coordination Council of the storm water discharges from these construction projects covered by today's permit is . therefore. not required . IV. Endangered Species Protection A Background The Construction General Permit (CGP) also contains conditions to ensure the activities regulated by it are protective of species that are listed under the Endangered Species Act (ESA) as endangered or threatened (known as "listed species"). and listed species habitat that is designated under Federal Register /Vol. 63. No. 128 /Monday. Ju ly 6. 1998/i'iorices 36493 the ESA as critic al ("critical habitat "). In addition. the permit's coverage does not extend to discharges and discharge- rela ted activities likely to jeopardize the continued existence of species proposed but not yet listed as endangered or threatened or result in the adverse modification of habitat proposed to be designated critical habitat . The ESA places several different requirements on activities covered by the CGP. First. section 9 of the ESA and the ESA implementing regulations generally prohibit any person from · "taking " a listed animal species (e.g .. harassi ng or harming it) unless the take is authorized under the ESA. This prohibition applies to all entities and includes EPA. permit applicants. permittees and the public at large . Second, section 7 (a) (2) of the ESA requires that Federal agencies consult with the Fish and Wildlife Service (FW S) or the National Marine Fisheries Service (NMFS) ("the Services") to insure that any action authorized. funded or carried out by them (also known as "agency actions") are not likely to jeopardize the continued exis tence of any listed species or result in the destruction or adverse modification of critical habitat. Jeopardizing the continued existence of a listed species means to engage in an action that reasonably would be expected, directly or indirectly. to reduce appreciably the likelihood of both the survival and recovery of a listed species in the wild by reducing the reproduction, numbers or distribution of that species (See 40 CFR 402 .02). The ESA section 7 implementing regulations at 50 CFR 402 apply this consultation requirement to any action authorized by a Federal agency that may affect listed species or critical habitat, including permits . This effect, among other things , can be beneficial, detrimental, direct and indirect. The issuance of the CGP by EPA is thus subject to the ESA section 7 (a) (2) consultation requirements . Finally. ESA section 7(a)(l) directs Federal agencies to use their authority to further the purposes of the ESA by carrying out programs for the conservation of listed species. and section 7(a)(4) directs Federal agencies to confer with the Services on Agency actions likely to jeopardize the existence of species proposed but not yet finally listed or result in the adverse modification of critical habitat proposed to be designated . The ESA regulations provide for two types of consultation: formal and informal. Informal consultation ls an optional process that includes discussions. correspondence . etc. between the Services and a Federal agency or a designated non-Federal representative (NFR) to determine whether a Federal action is likely to have an adverse effect on listed species or critical habitat. During informal consultation the Services may suggest modifications to the action that a Federal agency . permit applicant or non-Federal representati ve could implement to avoid likely adverse effects to listed species or critical habitat. If adverse effects are likely and those effects cannot be addressed through informal consultation . then formal consultation generally occurs . Also of relevance for the CGP are ESA section 10 incidental taking permits . Section 10 of the ESA allows persons , including non-Federal entities to incidentally take listed animal species . where otherwise prohibited. through the issuance of a permit after development of a habitat conservation plan (HC P). These procedures were developed to allow non-Federal entities such as developers to, among other things. alter habitat without incurring takings liability where take is minimized to the extent practicable . B . Conditions in the June 2. 1997 Proposed Permit To Protect Species and Critical Habitat The CGP was proposed with a number of conditions to ensure that storm water discharges and best management practices (BMPs) to control storm water runoff were protective of listed species or critical habitat. Specifically, coverage under the proposed CGP would be granted only under the following circumstances: 1. An applicant's storm water discharges or BMPs to control storm water runoff were not likely to adversely affect listed species (identified in Addendum A of the permit) or critical habitat ; or 2. The applicant's activity was previously authorized under§ 7 or§ 10 of the Endangered Species Act (ESA) and that authorization addressed storm water discharges and BMPs to control storm water runoff; or 3. The applicant's activity was considered as part of a larger , more comprehensive assessment of impacts on endangered and threatened species under § 7 or § 10 of the ESA which accounted for storm water discharges and BMPs to control storm water runoff; or 4. Consultation under§ 7 of the ESA was conducted for the applicant's activity which resulted in either a no jeopardy opinion or a written concurrence on a finding of no likelihood of adverse effects : or 5 . The applicant 's acti v ity was considered as part of a larger . more comprehensive site-specific assessment of impacts on endangered and threatened species by the owner or other operator of the site and that permittee certified eligibility under items 1 .. 2., 3. or 4. above . The proposal required that applicants assess the impacts of their "storm water discharges " and "BMPs to control storm water runoff ' on listed species and critical habitat that are located "in proximity " to the those discharges and BMPs when developing Storm Water Pollution Prevention Plans (SWPPPs) as part of the application process. The proposed CGP also required applicants to include measures in SWPPPs to protect listed species and critical habitat. "In proximity" was defined in Addendum A to include species: ~ Located in the path or immediate area through which or over which contaminated point source storm water flows from construction activities to the point of discharge into the receiving water ; ~ Located in the immediate vicinity of. or nearby. the point of discharge into receiving waters; or ~ Located in the area of a site where storm water BMPs are planned or are to be constructed . EPA also solicited comment on whether the area or scope of impacts to be considered by applicants should be broadened to encompass listed species found on the entire construction site and not just those species found "in proximity" as currently defined in Addendum A. Failure by permittees to abide by measures in their SWPPPs to protect species and critical habitat would invalidate permit coverage. Attached to the proposed permits were instructions (Addendum A) to assist permit applicants in making this inquiry. The proposal indicated that a county-by- county species list would be included in Addendum A of the final permit to assist applicants in determining if listed species might be "in proximity" to storm water discharges and BMPs. EPA did not provide a draft species list in proposed Addendum A. Instead . EPA referred commenters to a similar species list that was used for an earlier EPA- issued storm water permit, the Multisector Storm Water General Permit, that was issued on September 29. 1995 (See62 FR29792, note 12.June 2 . 1997). 36494 Federal Register /Vol. 63 . No . 128 /Monday. Jul y 6 . 1998 /Not ices C. Fin a l CC P Co n d itio n s To Prot ect Li s ted S p ecies On April 28 . !99 7 . EP A e nt ered in to fo rm a l con s ultation wit h the Fish a n d Wil d li fe Service (F WS) a nd the Nat ion al Marine Fisheries Serv ic e (N MFS) (th e "Service s ") for is suance of the CGP . Aft er d iscu s sions w ith the Services . EPA term inated formal consultation and ente red in to ESA section 7 informal consul tation and confe rencing with the Fish and Wildlife Servic e (FWS) and th e National Fisheries Serv ic e Services (NMFS ) on June 11. 1997 . On Novembe r 4. and 26 . 1997 . EPA completed ESA informal consultation w hen NMFS and FWS provided their respective concurrences w ith EP A 's finding that issuance of the CGP was not likely to adversely affect listed spec ies or critical habitat. However. the negotiations on CGP d id not consider ongoing construction projects : i.e .. construction projects which started prior to the effective date of these permits . In January. 1998 . Region 6 decided to address ESA certification issues for ongoing construction projects before finaliz ing the permit. In February. 1998 . EPA Reg ion 6 began a supplemental informal consultation w ith FWS and NMFS on language to clarify requirements for ongoing construction activity . EPA Region 6 completed ESA informal section 7 consultation and conferencing when FWS and NMFS provided their concurrences that issuance of these permits is unlikely to adversely affect listed species or critical habitat on June 9, and 15 , respectively. With the completion of these consultations. EPA Region 6 has reduced the administrative burden associated with obtaining permit coverage for ongoing construction projects for the federal agencies and the regulated community. Based on that consultation and in consideration of comments received on the June 2 . 1997 . proposal. EPA has placed the following conditions in the permit to protect listed species and critical habitat (See Part I.8 .3 .e). Coverage under the CGP is available for construction projects only if: a . The storm water discharges and storm water discharge-related activities are not likely to adversely affect listed species or critical habitat (Part I.B .3 .e .(2)(a)): or b . Formal or informal consultation with the Services under section 7 of the Endangered Species Act (ESA) has been concluded which addresses the effects . of the applicant's storm water discharges and storm w ater discharge- related activities on listed species and critical habitat and the consultation res ults in e ither a no j eo p a rd y o p in io n o r a w ritten co ncurre nce by t he Se rv ice(s) on a find ing t hat th e a pplicant's storm water dis c harg es and sto rm w ater discharge-re lat ed acti v it ies are not likely to ad vers el y affect list ed s pecies or critical hab it at. A s ection 7 co nsultation may occ ur in the contex t o f another Federal on (e .g .. an ESA se c t ion 7 consultation w as performed for iss uance of a wetlands dredge and fil l p ermit for the project . or as part of a National Environmental Policy Act [N EPA] review): or c . The applicant's construction ac ti v ities are co vered by a permit under s ec tion l 0 of the ESA and that perm it ad dresses the effects of the applicant 's storm water discharges and storm water d ischarge-related activities on listed species and critical habitat (Part I.B .3 .e. (2) (c)); or d . The applicant 's storm water disc harges and storm water discharge- related activities were already addressed in another operator's certification of eligibility under Part I.8 .3 .e . (Z)(a). (b ). or (c) which included the applicant's project area . By certify ing eligibility under Part I.B .3 .e. (2) (d ). the applicant agrees to comply with any measures or controls upon which the other operator's certification under Part I.B .3.e .(2)(a). (b) or (c) was based . The CGP requires that applicants consider effects to listed species and critical habitat when developing SWPPPs and require that those plans include measures, as appropriate, to protect those re sources. Failure by permittees to abide by measures in the SWPPPs to protect species and critical . habitat may invalidate permit coverage . This permit requires all projects commencing construction after the effective date of this permit, to follow the procedures provided in Addendum A of the permit when applying for permit coverage . The Director may also require any existing permittee or applicant to provide documentation of eligibility for this permit using the procedures in Addendum A. where EP A or the Fish and Wildlife Services determine that there is a potential impaction on endangered or threatened species or a critical habitat. Nothing in the permit relieves applicants which are under construction as of the effective date of this permit of their obligations they may have to comply with any requirements of the Endangered Species Act. Addendum A contains instructions to assist permit applicants in making this inquiry . Those instructions require that a pplicants ascertain: (1) If their construction activities would occur in critical habitat; (2) whether listed s peci es are in the proj ect a rea : a nd (3) w hether th e a p p li ca nt's s torm w ater d isc harges and d isc ha rg e -r e la ted ac ti v ities are like ly to adve rse ly affect li s ted spec ie s o r critical habitat . If adverse effec ts are lik e ly . th e n a pplicants w ould have to meet on e of the eligibil i ty requirements of Part I.8 .3 e .(2){b)-(d) (paragraphs b .. c .. a nd d . above) to rec eive permit coverage . "Discharge-r e lated activities " include activities which cause point source storm water pollutant discharges including but not limited to excavation . site developm ent . and other surface d isturbing activi t ies. and measures to control . reduce or prevent storm water pollution including the siting. construction and operation of BMPs . The "project area " includes: 1. Area(s) on the construction site where storm water discharges originate and flow towards the point of discharge into the recei v ing waters (this includes the entire area or areas where excavation . site development, or other ground disturbance activities occur). and the immediate vicinity; 2. Area(s) where storm water discharges flow from the construction site to the point of discharge into receiving waters : 3 . Area(s) where storm water from construction activities discharges into the receiving waters and the area(s) in the immediate vicinity of the point of discharge; and 4 . Area(s) where storm water BMPs will be constructed and operated. including any area(s) where storm water flows to and from BMPs . The project area will vary with the size and structure of the construction activity , the nature and quantity of the storm water discharges. the measures (including BMPs) to control storm water runoff. and the type of receiving waters . Addendum A also contains information on where to find information on listed and proposed species organized by State and county to assist applicants in determining if further inquiry is necessary as to w hether listed species are present in the project area . Applicants can check the Office of Wastewater Management's w ebsite (http ://www.epa .gov /owm). CGP applicants can also get updated species information for their county by calling the appropriate FWS or NMFS office . EPA Region 6 applicants can also contact the EPA Region 6 Storm Water Hotline (1-800-245-6510) for updated species information . The CGP also requires that applicants comply with any conditions imposed under the eligibility requirements of Part I.B .3.e . (2)a .. b .. c .. or d . above to remain eligible for coverage under this Federal Register I Vol. 63, No. 128 I Monday, July 6 , 1998 I Notices 36495 permit. Such conditions must be incorporated in the applicant's SWPPP. The CGP does not authorize any prohibited take (as defined under section 3 of the ESA and 50 CFR 17 .3) of endangered or threatened species unless such takes are authorized under sections 7 or 10 of the ESA . The CGP does not authorize any storm water discharges or storm water discharge- related activities that are likely to jeopardize the continued existence of any species that are listed or proposed to be listed as endangered or threatened under the ESA or result in the adverse modification or destruction of habitat that is designated or proposed to be designated as critical under the ESA . It is EPA's intention to provide permit applicants with the greatest possible flexibility in meeting permit requirements for protecting listed species and critical habitat. Thus, EPA is allowing applicants to use either section 7 or section 10 ESA mechanisms to address situations where adverse effects are likely (See Part I.B.3.e.(2) (b) and (c)). Also, to give applicants additional flexibility in meeting the Part I.B .3.e. eligibility requirements and with the timing of informal consultations . the permit automatically designates CGP applicants as non-Federal representatives for the purpose of carrying out informal consultation. However , EPA notes that meeting ESA requirements raises difficult implementation issues on how to best ensure that the permits are protective of listed species and critical habitats without unduly burdening permit applicants, permittees, and State, local, and Federal governmental entities. Thus, EPA intends in the future to review those permit conditions and procedures that relate to the ESA and the protection of historic resources to see how well that goal has been achieved and may revise the permits if necessary to better achieve that goal. V. Historic Property Protection A Background The National Historic Preservation Act of 1966, as amended , (NHPA) establishes a national historic preservation program for the identification and protection of historic properties and resources . Under the NHPA. identification of historic properties is coordinated by the State Historic Preservation Officers (SHPOs), Tribal Historic Preservation Officers (THPOs) or other Tribal Representatives (in the absence of a THPO). Section 106 of the NHPA requires Federal agencies to take into account the effects of their actions on historic properties that are listed or eligible for listing on the National Register of Historic Places and to seek comments from the Advisory Council on Historic Preservation (ACHP). The permit was proposed with a number of conditions pertaining to the consideration of historic properties . EPA has decided to not include those conditions because the ACHP and the National Conference of State Historic Preservation Officers (NCSHPO) have requested that EPA not include such conditions in the final permit at this time . The ACHP and the NCSHPO have recommended that EPA issue the permit but recommend that EPA continue working with them and Tribes regarding the possible development of a more comprehensive and efficient approach to ensure that effects to historic properties are given appropriate consideration while ensuring undue burdens are not imposed on applicants and regulatory authorities. EPA plans to continue working with the ACHP. NCSHPO and Tribes on this effort and may modify the permit to incorporate procedures regarding the protection of historic resources at a later date . B. Future CG? Conditions To Protect or Consider Effects to Historic Properties In response to comments received on the permit proposal and because the Agency is still discussing historic preservation with the Advisory Council on Historic Preservation (ACHP), the final permit reserves permit requirements related to historic preservation . Today's final permit does not include the eligibility restrictions and evaluation requirements from the proposed permit. After future discussions with the ACHP, EPA may modify the permit to reflect those discussions . VI. Regulatory Review (Executive Order 12866) Under Executive Order 12866 , (58 FR 51735 [October 4 , 1993]) the Agency must determine whether the regulatory action is "significant" and therefore subject to OMB review and the requirements of the Executive Order. The Order defines "significant regulatory action " as one that is likely to result in a rule that may have an annual effect on the economy of $100 million or more or adversely affect in a material way the economy, a sector of the economy, productivity, competition , jobs . the environment, public health or safety, or State, local or Tribal governments or communities; create a serious inconsistency or otherwise interfere with an action taken or planned by another agency ; materially alter the budgetary impact of entitle me nts. gra nts . use r fe es , or loan programs or the ri ghts and obligations of recipients there of; or rai s e novel legal or policy issu es ari s ing out of legal mandates . the Pres ident's prioritie s . or the principles set forth in the Exe c uti ve Order. It has been determine d that this re -issued general p e rmit is not a "significant regulatory action " under the terms of Exe c utive Orde r 12866 . VII. Unfunded Mandates Reform Act Title II of the Unfunded Mandates Reform Act of 1995 (UMRA), Pub . L. 104-4 . establishes requirements for Federal agencies to assess the effects of their regulatory a c tions on State. local. and Tribal governments and the private sector. Under UMRA section 202 . EPA generally must prepare a written statement. including a cost-benefit analysis , for propose d and final rules with "Federal mandates" that may result in expenditures to State , local. and Tribal governments . in the aggregate . or to the private sector. of $100 million or more in any one year. Before promulgating an EPA rule for which a written statement is needed. UMRA § 205 generally requires EPA to identify and consider a reasonable number of regulatory alternatives and adopt the least costly. most cost- effective or least burdensome alternative that achieves the objectives of the rule . The provisions of UMRA § 205 do not apply when they are inconsistent with applicable law . Moreover , UMRA § 205 allows EPA to adopt an alternative other than the least costly. most cost-effective or least burdensome alternative if the Administrator publishes an explanation with the final rule why the alternative was not adopted . Before EPA establishes any regulatory requirements that may significantly or uniquely affect small governments, including Tribal governments. it must have developed under UMRA § 203 a small government agency plan. The plan must provide for notifying potentially affected small governments , enabling officials of affected small governments to have meaningful and timely input in the development of EPA regulatory proposals with significant Federal intergovernmental mandates , and informing . educating and advising small governments on compliance with the regulatory requirements . A UMRA Section 202 and the Construction General Permit UMRA § 202 requires a written statement containing certain assessments , estimates and analyses prior to the promulgation of certain general notices of proposed rulemaking (2 U.S.C . 1532). UMRA §421(10) defines 36496 Federal Register /Vol. 63. No . 128 /Monday. July 6 , 1998/Notices "rule" based on the definition of rule in the Regulatory Flexibility Act. Section 60 I of the Regulatory Flexibility Act defines "rule" to mean any rule for which an agency publishes a general notice of proposed rulemaking pursuant to § 553 of the Administrative Procedure Act. EPA does not propose to issue NPDES general permits based on APA § 553 . Instead . EPA relies on publication of general permits in the Federal Register in order to provide "an opportunity for a hearing" under CWA § 402(a). 33 U.S.C . 1342(a). Nonetheless. EPA has evaluated permitting alternat ives for regulation of storm water discharges associated with construction activity . The general permit that EPA proposes to re -issue would be virtually the same NPDES general permit for construction that many construction operators have used over the past five years. Furthermore, general permits provide a more cost and time efficient alternative for the regulated community to obtain NPDES permit coverage than that provided through individually drafted permits . B. UMRA Section 203 and the Construction General Permit Agencies are required to prepare small government agency plans under UMRA § 203 prior to establishing any regulatory requirement that might significantly or uniquely affect small governments . "Regulatory requirements" might. for example. include the requirements of these NPDES general permits for discharges associated with construction activity , especially if a municipality sought coverage under one of the general permits. EPA envisions that some municipalities-those with municipal separate storm sewer systems serving a population over 100.000-may elect to seek coverage under these proposed general permits. For many municipalities , however. a permit application is not required until August 7 . 2001 . for a storm water discharge associated with construction activity where the construction site is owned or operated by a municipality with a population of less than 100,000 . (See 40 CFR 122.26(e)(l)(ii) and (g)). In any event, any such permit requirements would not significantly affect small governments because most State laws already provide for the control of sedimentation and erosion in a similar manner as today's general permit. Permit requirements also would not uniquely affect small governments because compliance with the permit's conditions affects small governments in the same manner as any other entity seeking coverage under the permit. Thus . UMRA § 203 would not apply . VIII . Paperwork Reduction Act On June 2, 1997. EPA solicited comments on the proposed revision to the current Information Collection Request (ICR) document for this permit (ICR approved OMB ; OMB No. 2040- 0086. expiration . August 31, 1998) to accommodate the increased information requirements in the new NOI for the construction general permit {62 FR 29826). A revised NOI form has been approved (EPA Form 3510-9 OMB No . 2040-0188.) This revised form is included in the permit in Addendum C. EPA estimates an increase in the burden associated with filling out the NOI form for the permit due to added requirements under the Endangered Species Act. EPA also anticipates a small increase in the time because of the requirement to submit an NOT upon completion of construction activities . IX . Regulatory Flexibility Act Under the Regulatory Flexibility Act (RFA). 5 U.S.C. 601 et seq .. a Federal agency must prepare an initial regulatory flexibility analysis "for any proposed rule" for which the agency "is required by section 553 of [the Administrative Procedure Act (APA)]. or any other law. to publish general notice of proposed rulemaking." The RF A exempts from this requirement any rule that the issuing agency certifies "will not, if promulgated, have a significant economic impact on a substantial number of small entities ." EPA did not prepare an initial regulatory flexibility analysis (IRF A) for the proposed CGP. (Note that in today's action. EPA is issuing a separate general permit for each jurisdiction where EPA issues permits; i.e .. in certain States. Indian Country lands and Federal facilities within certain States . However . for purposes of readability. reference is made to the permits in the singular form such as "permit" or "CGP " rather than in plural form.) In the notice of the proposed permit. EPA explained its view that issuance of an NPDES general permit is not subject to rulemaking requirements, including the requirement for a general notice of proposed rulemaking, under APA section 553 or any other law. and is thus not subject to the RF A requirement to prepare an IRF A. Nevertheless, in keeping with EPA 's policy to consider the impact of its actions on small entities even when it is not legally required to do so. the Agency considered the potential impact of the permit on small entities that would be eligible for coverage under the permit. EPA concluded that the permit, if issued as drafted. would not have a significant impact on a substantial number of small entities . EPA based its conclusion on the fact that the draft permit was largely the same as the previous permit issued in 1992 and. to the extent it differed . provided dischargers with more flexibility than that permit allowed . Some commenters on the proposed CGP disagreed with EPA's conclusions that NPDES general permits are not subject to rulemaking requirements and that the proposed permit would not have a significant impact on small entities. They asserted that the CGP is subject to rulemaking requirements and thus the RF A . and that the Agency should have prepared an IRF A for the permit. In light of the comments received. EPA further considered whether NPDES general permits are subject to rulemaking requirements. The Agency reviewed its previous NPDES general permitting actions and related statements in the Federal Register or elsewhere . This review suggests that the Agency has generally treated NPDES general permits effectively as rules. though at times it has given contrary indications as to whether these actions are rules or permits. EPA also reviewed again the applicable law . including the CW A . relevant CW A case law and the APA, as well as the Attorney General's Manual on the AP A (194 7). On the basis of its review. EPA has concluded, as set forth in the proposal, that NPDES general permits are permits under the APA and thus not subject to APA rule making requirements or the RF A. The APA defines two broad , mutually exclusive categories of agency action- "rules" and "orders ." Its definition of "rule" encompasses "an agency statement of general or particular applicability and future effect designed to implement. interpret, or prescribe law or policy or describing the organization. procedure, or practice requirements of an agency * * *"APA section 551(4). Its definition of "order " is residual : "a final disposition * * * of an agency in a matter other than rule making but including licensing." APA section 551(6) (emphasis added). The APA defines "license " to "include* * *an agency permit * * * ·' AP A section 551(8). The APA thus categorizes a permit as an order. which by the APA's definition is not a rule. Section 553 of the APA establishes "rule making " requirements. The APA defines rule making as "the agency process for formulating , amending. or repealing a rule ." AP A § 551 (5). By its terms. then . § 553 applies only to "rules" and not also to "orders," which Federal Register /Vol. 63, No. 128/Monday. Jul y 6, 1998 /Notices 36497 include permits. As the Attorney General's Manual on the APA explains, "the entire Act is based upon a dichotomy between rule making and adjudication [the agency process for formulation of an order]" (p . 14). The CWA specifies the use of permits for authorizing the discharge of pollutants to waters of the United States. Section 301 (a) of the CWA prohibits discharges of pollutants "[except as in compliance with" specified sections of the CWA, including section 402. 33 U.S.C . 1311 (a). Section 402 of the CWA authorizes EPA "to issue a permit for the discharge of any pollutant * * *, notwithstanding section [30 1 (a) of the CWA]." 33 U.S.C. 1342 (a). Thus, the only circumstances in which a discharge of pollution may be authorized is where the Agency has issued a permit for the discharge. Courts, recognizing that a permit is the necessary condition-precedent to any lawful discharge, specifically suggested the use of area-wide and general permits as a mechanism for addressing the Agency's need to issue a substantial number of permits. See NRDC v. Train , 396 F.Supp . 1393, 1402 (D .D.C . 1975); NRDCv . Castle, 568 F .2d 1369. 1381. (D .C. Cir. 1977). Adopting the courts' suggestion , EPA has made increasing use of general permits in its CWA regulatory program, particularly for storm water discharges. In the Agency 's view, the fact that an NPDES general permit may apply to a large number of different dischargers does not convert it from a permit into a rule. As noted above, the courts which have faced the issue of how EPA can permit large numbers of discharges under the CWA have suggested use of a general permit, not a rule . Under the APA. the two terms are mutually exclusive. Moreover, an NPDES general permit retains unique characteristics that distinguish a permit from a rule . First. today's NPDES general permit for storm water discharges associated with construction activity is effective only with respect to those dischargers that choose to be bound by the permit. Thus . unlike the typical rule. this NPDES general permit does not impose immediately effective obligations of general applicability. A discharger must choose to be covered by this general permit and so notify EPA. A discharger always retains the option of obtaining its own individual permit. Relatedly. the terms of the NPDES general permit are enforceable only against dischargers that choose to make use of the permit. If a source discharges without authorization of a general or an individual permit, the discharger violates§ 301 of the Act for discharging without a permit. not for violating the terms of an NPDES general permit. Because the CWA a nd its case law make clear that NPDES permits are the congressionally chosen vehicle for authorizing discharges of pollutants to waters of the United States . the AP A 's rulemaking requirements are inapplicable to issuance of such permits , including today's general permit. Further, while the CWA requires that NPDES permits be issued only after an opportunity for a hearing , it does not require publication of a general notice of proposed rulemaking. Thus , NPDES permitting is not subject to the requirement to publish a general notice of proposed rulemaking under the AP A or any other law. Accordingly . it is not subject to the RF A. At the same time , the Agency recognizes that the question of the applicability of the APA. and thus the RF A, to the issuance of a general permit is a difficult one, given the fact that a large number of dischargers may choose to use the general permit. Indeed, the point of issuing a general permit is to provide a speedier means of permitting large number of sources and save dischargers and EPA time and effort. Since the Agency hopes that many dischargers will make use of a general permit and since the CWA requires EPA to provide an opportunity for "a hearing" prior to issuance of a permit, EPA provides the public with notice of a draft general permit and an opportunity to comment on it. From public comments. EPA learns how to better craft a general permit to make it appropriate for. and acceptable to, the largest number of potential permittees. This same process also provides an opportunity for EPA to consider the potential impact of general permit terms on small entities and how to craft the permit to avoid any undue burden on small entities . This process. however. is voluntary. and does not trigger rulemaking or RF A requirements. In the case of the CGP being issued today, the Agency has considered and addressed the potential impact of the general permit on small entities in a manner that would meet the requirements of the RF A if it applied. Specifically. EPA has analyzed the potential impact of the general permit on small entities and found that it will not have a significant economic impact on a substantial number of small entities. Like the previous general permit that it replaces (the Baseline Construction General Permit), the permit will make available to many small entities, particularly operators of construction sites. a streamlined process for obtaining authorization to discharge . Of the possible permitting mechanisms available to dischargers subject to the CWA . NPDES general permits are designed to reduce the reporting and monitoring burden associated with NPDES permit authorization . especially for small entities with discharges having comparatively less potential for environmental degradation than discharges typically regu lated under individual NPDES permits. Thus , general permits like the permit at issue here provide small entities with a permitting application option that is much less burdensome than NPDES individual permit applications. Furthermore. the general permit is virtually identical to its predecessor. the Baseline Construction General Permit. under which many construction operators have operated during the past five years . Moreover. the other new provisions of the permit have been designed to minimize burdens on small entities. including eliminating the requirement that construction site operators require that their contractors and subcontractors sign a standard certification statement agreeing to abide by storm water pollution prevention plan provisions developed for a project. In today's general permit, only the operator(s) of a constructio n site are required to satisfy certification requirements under the permit. EPA believes this modification from the prior permit should reduce any such adverse economic impacts on both operators and contractors/subcontractors who, in many instances. are small entities . In view of the foregoing . the Regional Administrators find that the final general permit. even if it were a rule, will not have a significant economic impact on a substantial number of small entities. Storm Water General Permit for Construction Activities in Region 6 NPDES Permit No. [See Part I.A.] Authorization to Discharge Under the National Pollutant Discharge Elimination System In compliance with the provisions of the Clean Water Act, as amended , (33 U.S.C. 1251 et. seq .). except as provided in Part I.B .3 of this permit, operators of construction activities located in an area specified in Part I.A. and who submit a Notice of Intent in accordance with Part II. are authorized to discharge pollutants to waters of the United States in accordance with the conditions and . requirements set forth herein. This permit shall become effective on [insert the date of publication of the final permit in the Federal Register]. 36498 Federal Register /Vo l. 63 . No. 128/Monday. July 6. 1998 /Notices This permit a nd the authorization to discharge shall expire at midnight. July 7. 2003 . Signed: June 24, 1998 . William B. Hathaway, Director, Water Quality Protection Division. NPDES General Permits for Storm Water Discharges from Construction Activities Table of Contents Part I. Coverage Under this Permit A. Permit Area B. Eligibility C. Obtaining Authorization D. Terminating Coverage Part II. Notice of Intent Requi rements A. Deadlines for Notification B. Contents of Notice of Intent C. Where to Submit Part III. Special Conditions , Management Practices. and Other Non-Nume ri c Limitations A. Prohibition on Non -Storm Water Discharges B. Releases in Excess of Reportable Quantities C. Spills D. Dis charge Compliance with Water Quality Standards E. Responsibilities of Operators F. Consistency with the Texas Coastal Management Program Part IV . Storm Water Pollution Prevention Plans A. Deadlines for Plan Preparation and Compliance B. Signature, Plan Review and Making Plans Available C. Keeping Plans Current D. Contents of Plan Part V. Retention of Records A. Documents B. Accessibility C. Addresses Part VI. Standard Permi t Conditions A. Duty to Comply B. Continuation of the Expired General Permit C. Need to Halt or Reduc e Activity not a Defense D. Duty to Mitigate E. Duty to Provide Inform ation. F. Other Information G. Signatory Requirem ents H. Penalties for Falsification of Reports I. Oil and Haza rdous Substance Liability J. Property Rights K. Severability L. Requiring an Individu al Permit or an Alternative General Permit M. Stateffribal Environmental Laws N. Proper Operation and Maintenance 0. Inspection and Entry P. Permit Actions Part VII . Reopener Clause Part VIII. Termination of Coverage A. Notice of Termination B. Addresses Part IX . Definitions Part X. Permit Conditions Applica bl e to Specific States, Indi an Country Lands. or Territories Addenda A. Endang ered Sp ec ies B. Historic Prop erti es (Reserved) C. Notice of Intent (NO!) Form D. Notice of Termination (NO 'T) Form P art I. Coverage Under This Permit A. Permit Area The permit language is structured as if it were a single permit, with State, Indian Country land. or other area- specific conditions specified in Part X. Permit coverage is actually provided by legally separate and distinctly numbered permits covering each of the following areas : Region 6 LARIO*##I: Indian Country lands in the State of Louisiana NMRlO*###: The State of New Mexico . except Indian Country lands NMRlO*##I : Indian Country lands in the State of New Mexico. except Navajo Reservation Lands and Ute Mountain Reservation Lands OKRIO*##I: Indian Country lands in the State of Oklahoma OKRIO*##F: Oil and Gas Sites in State of Oklahoma TXRlO*###: The State of Texas. except Indian Country lands TXRIO*##I : Indian Country lands in the State of Texas B. Eligibility 1. Permittees are authorized to d ischarge pollutants in storm water runoff associated with construction activities as defined in 40 CFR 122 .26(b)(l4)(x) and those construction site discharges designated by the Director as needing a storm water permit under 122 .26(a)(l)(v) or under 122.26(a)(9) and 122 .26(g)(l)(i). Discharges identified under Part I.B .3 are excluded from coverage. Any d ischarge authorized by a different NPDES permit may be commingled with d ischarges authorized by this permit. 2. This permit also authorizes storm water discharges from support activities (e .g .. concrete or asphalt batch plants , equipment staging yards. material storage areas. excavated material disposal areas. borrow areas) provided : a . The support activity is directly related to a construction site that is required to have NPDES permit coverage for discharges of storm water associated with construction activity; b . The support activity is not a commercial operation serving multiple unrelated construction projects by different operators . and does not operate beyond the completion of the construction activity at the last construction project it supports; and c . Appropriate controls and measures are identified in a storm water pollution prevention plan covering the discharges from the support activity areas. 3 . Limitations on Coverage a . Post Construction Dis c h arges. This permit does not authorize storm water discharges that origi nate from the site after construction activities have been com pleted and the site. including any temporary support activity site, has undergone final stabilization . Industrial post-construction storm water discharges may need to be covered by a separate NPDES permit. b. Discharges Mixed with Non-Storm Water. This permit does not authorize discharges that are mixed with sources of non-storm water. other than those discharges which are identified in Part III .A.2. or 3 . (exceptions to prohibition on non-s torm water discharges) and are in compliance with Part IV .D.5 (non- s torm water discharges). c. Discharges Covered by Another Permit. This permit does not authorize s torm water discharges associated with construction activity that have been covered under an individual permit or required to obtain coverage under an alternative general permit in accordance with Part VI.L . d. Discharges Threatening Water Quality. This permit does not authorize storm water discharges from construction sites that the Director (EPA) determines will cause , or have reasonable potential to cause or contribute to. violations of water quality standards. Where such determinations have been made , the Director may notify the operator(s) that an individual permit application is necessary in accordance with Part VI.L. However. the Director may authorize coverage under this permit after appropriate controls and implementation procedures designed to bring the discharges into compliance with water quality standards have been included in the storm water pollution prevention plan ; e . Storm water discharges and storm water discharge-related activities that are not protective of Federally listed endangered and threatened ("listed ") species or designated critical habitat ("c ritical habitat "). (1) For the purposes of complying with the Part I.B .3.e. eligib ility requirements. "storm water discharge- related activities" include: (a) Activities which cause , car.tribute to . or result in point source storm water pollutant discharges. including but not limited to : excavation, site development, grading and other surface disturbance activities; and (b) Measures to control storm water including the siting. construction and operation of best management practices Federal Register /Vol. 63 , No. 128/Monday, July 6 . 1998/Notices 36499 (BMPs) to control. redu ce or prevent storm water pollution. (2) Coverage under this permit is availab le only if the applicant ce rtifi es that it meets at least one of the criteria in paragraphs (a)-(d) below . Failure to conti nue to meet one of these c riteria during the term of the permit will render a permittee ineligible for coverage under this permit. (a) The storm water discharges and storm water discharge-related activities are not likely to adversely affect listed species or critical habitat ; or (b) Formal or informal consultation with the Fish and Wildlife Service and/ or the National Marine Fisheries Service (the "Services") under section 7 of the Endangered Species Act (ESA) has be en concluded which addresses the effects of the applicant's storm water discharges and storm water discharge- related activities on listed species and critical habitat and the consultation results in either a no jeopardy opinion or a written concurrence by the Service(s) on a finding that the applicant's storm water discharges and storm water discharge-related activities are not likely to adversely affect listed species or critical habitat. A section 7 consultation may occur in the context of another Federal action (e .g .. a ESA section 7 consultation was performed for issuance of a wetlands dredge and fill permit for the project. or as part of a National Environmental Policy Act (NEPA) review); or (c) The applicant's construction activities are authorized under section 10 of the ESA and that authorization addresses the effects of the applicant's storm water discharges and storm water discharge-related activities on listed species and critical habitat; or (d) The applicant's storm water discharges and storm water discharge- related activities were already addressed in another operator's certification of eligibility under Part 1.8.3 .e. (2) (a). (b). or (c) which included the applicant's project area. By certifying eligibility under Part I.B .3 .e .(2)(d). the applicant agrees to comply with any measures or controls upon which the other operator's certification under Part 1.8.3.e. (2) (a). (b) or (c) was based. (3) For all projects commencing construction after the effective date of this permit, applicants must follow th e procedures provided at Addendum A of this permit when applying for permit coverage . The Director may also require any existing permittee or applicant to provide documentation of eligibility for this permit using the procedures in Addendum A , where EPA or the Fish and Wildlife Services determine that there is a potential impaction on endangered or threatened species or a critical habitat. Not hing in this permit relieves applicants which are under construc tion as of the effective date of thi s permit of their obligations they may h ave to com ply with any requirements of the Endangered Species Act. (4) The applicant must comply with any applicable terms. conditions or other requirements developed in the process of meeting eligibility requirements of Part I.B.3 .e.(2)(a). (b). (c). or (d) above to remain eligible for coverage under this permit. Such terms and conditions must be incorporated in the ap plicant's storm water pollution prevention plan . (5) Applicants who choose to co nduct informal consultation to meet the eligibility requirements of Part 1.8 .3.e. (2) (b) are automatically designated as non-Federal representatives under this permit. See 50 CFR 402 .08 . Applicants who choose to conduct informal consultation as a non-Federal representatives must notify EPA and the appropriate Service office in writing of that decision. (6) This permit does not authorize any storm water discharges where the discharges or storm water discharge - related activities cause prohibited "take" (as defined under section 3 of the Endangered Species Act and 50 CFR 17 .3) of endangered or threatened species unless such takes are authorized under sections 7 or 10 of the Endangered Species Act. (7) This permit does not authorize any storm water discharges where the discharges or storm water discharge- related activities are likely to jeopardize the continued existence of any species that are listed or proposed to be listed as endangered or threatened under the ESA or result in the adverse modification or destruction of habitat that is designated or proposed to be designated as critical under the ESA. f. Storm water Discharges and Storm Water Discharge-Related Activities with Unconsidered Adverse Effects on Historic Properties. (Reserved) C. Obtaining Authorization 1. In order for storm water discharges from construction activities to be authorized under this general permit, an operator must: a. Meet the Part 1.8 eligibility requirements ; b . Except as provided in Parts 11.A.5 and 11 .A .6, develop a storm water pollution prevention plan (SWPPP) covering either the entire site or all portions of the site for which they are operators (see definition in Part IX .N) according to the requirements in Part IV . A "joint" SWPPP may be developed and imp lemented as a cooperative effort where there is more than one operator at a site : and c . Submit a Notice of Intent (NOi) in accordance with the requirements of Part II. using an NO! form provided in Addendum C of this permit. Only one NO ! need be submitted to cover all of the pe rmittee's activities on the com mon plan of development or sale (e .g .. you do not need to submit a separate NOi for each separate lot in a residential subdivision or for two separate buildings being constructed at a manufacturing facility . provided your SWPPP covers each area for which you are an operator). The SWPPP must be implemented upon commencement of construction activities . 2 . Any new operator on site. including those who replace an operator who has previously obtained p e rmit coverage. must submit an NOI to obtain permit coverage. 3 . Unless notified by the Dire ctor to the contrary. operators who submit a correctly completed NOI in accordance with the requirements of this permit are authorized to discharge storm water from construction activities under the terms and conditions of this permit two (2) days after the date that the NOI is postmarked . The Director may deny coverage under this permit and require submittal of a n application for an individual NPDES permit based on a review of the NOI or other information (see Part VI.L). D. Terminating Coverage 1. Permittees wishing to term inate coverage under this permit must submit a Notice of Termination (NOT) in accordance with Part VIII of this permit. Compliance with this permit is required until an NOT is submitted. The permittee's authorization to discharge under this permit terminates at midnight of the day the NOT is signed. 2. All permittees must submit a NOT within thirty (30) days after one or more of the following conditions have been met: a . Final stabilization (see definition Part IX.I) has been achieved on all portions of the site for which the permittee is responsible (including if applicable , returning agricultural land to its pre-construction agricultural use); b . Another operator/permittee has assumed control according to Part VI.G .2 .c. over all areas of the site that have not been finally stabilized ; or c. For residential construction only, temporary stabilization has been completed and the residence has been transferred to the homeowner. Enforcement actions may be taken if a p ermittee submits a NOT without 36500 Federal Register /Vol. 63, No. 128 /Monday, July 6, 1998/Notices meeting one or more of these conditions. Part II. Notice of Intent Requirements A. Deadlines for Notification l . Except as provided in Parts II.A .3, II .A.4, II.A.5 or II.A.6 below , parties defined as operators (see definition in Part IX.N) due to their operational control over construction plans and specifications , including the ability to make modifications to those plans and specifications, must submit a Notice of Intent (NOI) in accordance with the requirements of this Part at least two (2) days prior to the commencement of construction activities (i.e., the initial disturbance of soils associated with clearing , grading. excavation activities . or other construction activities). 2 . Except as provided in Parts II.A.3 , II.A.4 , II.A.5 or II .A.6 below, parties defined as operators (see definition in Part IX .N) due to their day-to-day operational control over activities at a project which are necessary to ensure compliance with a storm water pollution prevention plan or other permit conditions (e.g ., general contractor, erosion control contractor) must submit a NOI at least two (2) days prior to commencing work on-site. 3 . For storm water discharges from construction projects where the operator changes, including instances where an operator is added after a NOI has been submitted under Parts II.A.1 or II.A.2 , the new operator must submit a NOI at least two (2) days before assuming operational control over site specifications or commencing work on- site. 4 . Operators are not prohibited from submitting late NOis . When a late NOI is submitted, authorization is only for discharges that occur after permit coverage is granted. The Agency reserves the right to take appropriate enforcement actions for any unpermitted activities that may have occurred between the time construction commenced and authorization of future discharges is granted (typically 2 days after a complete NOI is submitted). 5. Operators of on-going construction projects as of the effective date of this permit which received authorization to discharge for these proj ects under the 1992 baseline construction general permit must: a . Submit a NOI according to Part II .B. within 90 days of the effective date of this permit. If the permittee is eligible to submit a Notice of Termination (e.g., construction is finished and final stabilization has been achieved) before the 90th day , a new NOI is not required to be submitted; b. For the first 90 days from the effec tive date of this permit , comply with the terms and conditions of the 1992 baseline construction general permit they were previously authorized under; and c . Update their storm water pollution prevention plan to comply with the requirements of Part IV within 90 days after the effective date of this permit. 6. Operators of on-going construction projects as of the effective date of this permit which did not receive authorization to discharge for these projects under the 1992 baseline construction general permit must: a . Prepare and comply with an interim storm water pollution prevention plan in accordance with the 1992 baseline construction general permit prior to submitting an NOI; b. Submit a NOI according to Part II.B ; and c. Update their storm water pollution prevention plan to comply with the requirements of Part IV within 90 days after the effective date of this permit. B. Contents of Notice of Intent (NO!) 1. Use of Revised NOI Form The revised NOI form [EPA Form 3510-9] shall be signed in accordance with Part VI.G of this permit and shall include the following information: a . The name, address, and telephone number of the operator filing the NOI for permit coverage ; b. An indication of whether the operator is a Federal. State, Tribal. private, or other public entity; c . The name (or other identifier). address, county. and latitude/longitude of the construction project or site; d . An indication of whether the project or site is located on Indian Country lands; e . Confirmation that a storm water pollution prevention plan (SWPPP) has been developed or will be developed prior to commencing construction activities. and that the SWPPP will be compliant with any applicable local sediment and erosion control plans. Copies of SWPPPs or permits should not be included with the NOI submission; f. Optional information: the location where the SWPPP may be viewed and the name and telephone number of a contact person for scheduling viewing times ; g. The name of the receiving water(s); h . Estimates of project start and completion dates. and estimates of the number of acres of the site on which soil will be disturbed (if less than l acre . enter "l "); i. Based on the instructions in Addendum A , whether any listed or proposed threatened or endangered species . or designated critical habitat. are in proximity to the storm water discharges or storm water discharge- related activities to be covered by this permit; j. Under which section(s) of Part I.B .3.e . (Endangered Species) the appl icant is certifying eligibility; and Note that as of the effective date of this permit. reporting of information relating to the preservation of historic properties has been reserved and is not required at this time. Such reservation in no way relieves applicants or permittees from any otherwise applicable obligations or liabilities related to historic preservation under State. Tribal or local law . After further discussions between EPA and the Advisory Council on Historic Preservation . the Agency may modify the permit. Any such modification may affect future Notice of Intent reporting requirements. C. Where To Submit 1. NOis must be signed in accordance with Part VI.G . and sent to the following address : Storm Water Notice of Intent (42 03). US EPA . 401 M Street. SW. Washington. DC 20460 . Part III. Special Conditions, Management Practices, and Other Non- Numeric Limitations A. Prohibition on Non-Storm Water Discharges 1. Except as provided in Parts l.B .2 or 3 and III .A .2 or 3 . all discharges covered by this permit shall be composed entirely of storm water associated with construction activity. 2 . Disc harges of material other than storm water that are in compliance with an NPDES permit (other than this permit) issued for that discharge may be discharged or mixed with discharges authorized by this permit. 3 . The following non-storm water disc harges from active construction sites are authorized by this permit provided the non-storm water component of the discharge is in complia nce with Part IV .D.5 (non-storm water discharges): discharges from fire fighting activities ; fire hydrant flushings ; waters used to wash vehicles where detergents are not used; water used to control dust in accordance with Part IV.D .2.c .(2); potable water sources including waterline flushings ; routine external building wash down which does not use detergents ; pavement washwaters where spills or leaks of toxic or hazardous materials have not occurred (unless all spilled material has been removed) and where detergents are not used; air Federal Register/Vol. 63. No . 128/Mo nday. July 6 . 1998 /Notices 36501 conditioning condensate; uncontaminated ground water or spring water; and foundation or footing drains where flows are not contaminated with process materials such as solvents . B. Releases in Excess of Reportable Quantities The discharge of hazardous substances or oil in the storm water discharge(s) from a facility shall be prevented or minimized in accordance with the applicable storm water pollution prevention plan for the facility . This permit does not relieve the permittee of the reporting requirements of 40 CFR 110 , 40 CFR 117 and 40 CFR 302. Where a release containing a hazardous substance or oil in an amount equal to or in excess of a reportable quantity established under either 40 CFR 110. 40 CFR 117 or 40 CFR 302 , occurs during a 24 hour period: 1. The permittee is required to notify the National Response Center (NRC) (800-424-8802 ; in the Washington. DC. metropolitan area call 202-426-2675) in accordance with the requirements of 40 CFR 110 , 40 CFR 117 and 40 CFR 302 as soon as he or she has knowledge of the discharge; 2. The storm water pollution prevention plan required under Part IV of this permit must be modified within 14 calendar days of knowledge of the release to : provide a description of the release, the circumstances leading to the release, and the date of the release. In addition. the plan must be reviewed to identify measures to prevent the reoccurrence of such releases and to respond to such releases , and the plan must be modified where appropriate. C. Spills This permit does not authorize the discharge of hazardous substances or oil resulting from an on-site spill. D. Discharge Compliance With Water Quality Standards Operators seeking coverage under this permit shall not be causing or have the reasonable potential to cause or contribute to a violation of a water quality standard . Where a discharge is already authorized under this permit and is later determined to cause or have the reasonable potential to cause or contribute to the violation of an applicable water quality standard. the Director will notify the operator of such violation (s). The permittee shall take all necessary actions to ensure future discharges do not cause or contribute to the violation of a water quality standard and document these actions in the storm water pollution prevention plan. If violations remain or re-occur , then coverage unde r this permit may be terminated by the Director . and an alternative general permit or individual p e rmit may be issued . Compl iance with this requirement does not pre clude any enforcement activity as provided by the Clean Water Act for the unde rl y ing violation . E. Responsibilities of Operators Permittees may meet one or both of the operational control components in the definition of "operator " found in Part IX .N. Either Parts III.E. l or III .E.2 or both will apply depending on the type of operational control exerted by an individual permittee . Part III.E .3 applies to all permittees . 1. Permittees with operational control over construction plans and specifications. including the ability to make modifications to those plans and specifications (e .g .. developer or owner). must: a . Ensure the project specifications that they develop meet the minimum requirements of Part IV (Storm Water Pollution Prevention Plans (SWPPP)) and all other applicable conditions; b . Ensure that the SWPPP indicates the areas of the project where they have operational control over project specifications (including the ability to make modifications in specifications). and ensure all other permittees implementing portions of the SWPPP impacted by any changes they make to the plan are notified of such modifications in a timely manner; and c . Ensure that the SWPPP for portions of the project where they are operators indicates the name and NPDES permit number for parties with day-to-day operational control of those activities necessary to ensure compliance with the SWPPP or other permit conditions. If these parties have not been identified at the time the SWPPP is initially developed. the permittee with operational control over project specifications shall be considered to be the responsible party until such time as the authority is transferred to another party (e.g .. general contractor) and the plan updated . 2. Permittee(s) with day-to -day operational control of those activities at a project which are necessary to ensure compliance with a SWPPP for the site or other permit conditions (e .g .. general contractor) must: a . Ensure that the SWPPP for portions of the project where they are operators meets the minimum requirements of Part IV (Storm Water Pollution Prevention Plan) and identifies the parties responsible for implementation of control measures identified in the plan; b . En s ure that th e SWPPP indicates areas of t he proj ect where th ey h a ve ope ration a l control ove r day -to-day ac tivities ; c . Ensure th a t th e SWPPP fo r portions of the proj ec t whe re th ey ar e operators indicates the nam e and NPDES p e rmit number of the party(ies) w ith operational control over proj ec t specifica tions (in cl uding the ab ility to make modifications in specifications); 3 . Permittees with operational control over only a portion of a larger construction project (e.g .. one of four homebuilders in a subdivision) are responsible for compliance with all applicable te rms and conditions of this permit as it relates to their activities on their portion of the construction site. including protection of endangered species and implementation of BMPs and other controls required by the SWPPP . Permitte es shall ensure either directly or through coordination with other permittees . that their activities do not render another party's pollution controls ineffective . Permittees must either implement their portions of a common SWPPP or develop and implement their own SWPPP. F. Consistency With the Texas Coastal Management Program This permit does not relieve permittees whose construction project is located within the boundary of the Texas Coastal Management Program of their responsibility to insure consistency with all applicable requirements of this State program . While pre-construc tion approval of development projects is not within the jurisdiction of the Federal NPDES permit program. State or local pre- construction project approvals and/or permits may be required . The permittee 's Storm Water Pollution Prevention Plan must be consistent with any storm water discharge-relate d requirements established pursuant to, or necessary to be consistent with . the Texas Coastal Management Program . This permit may be reopened , upon petition by the State. to include more stringent discharge requirements applying to areas within the State's designated coastal zone . The Texas Coastal Management Program boundary covers part or all of the following Texas Counties: Aransas. Brazoria . Calhoun. Cameron. Chambers. Gal veston . Harris. Jackson . Jeffers on. Kenedy . Kleberg. Matagorda, Nueces. Orange. Refugio. San Patricio , Victoria , and Willacy. To determine if a construction project is located within the Texas Coastal Zone, and if so. the applicable requirements of the Texas Coastal Management Program, please 36502 Federal Register /Vol. 63, No. 128 /Monday , July 6, 1998 /No tices contact the Texas General Land Offi ce's Coastal Hotline at 1-800-85-BEACH or access their Internet site at "http:// red .glo .state . tx. us/res -mgmt/c oastal/''. Information is also available from the Texas Coasta l Coordination Council's Coastal Permitting Assistance Office at 1-888-3-PERMIT or via the Internet at · 'http://red .glo.state .tx.us / coastal permits/''. Part IV. Storm Water Pollution Prevention Plans At least one storm water pollution prevention plan (SWPPP) shall be developed for each construction project or site covered by this permit. For more effective coordination of BMPs and opportunities for cost sharing, a cooperative effort by the different operators at a site to prepare and participate in a comprehensive SWPPP is encouraged. Individual operators at a site may. but are not required. to develop separate SWPPPs that cover only their portion of the project provided reference is made to other operators at the site . In instances where there is more than one SWPPP for a site . coordination must be conducted between the permittees to ensure the storm water discharge controls and other measures are consistent with one another (e .g .. provisions to protect listed species and critical habitat). Storm water pollution prevention plans shall be prepared in accordance with good engineering practices. The SWPPP shall identify potential sources of pollution which may reasonably be expected to affect the quality of storm water discharges from the construction site. The SWPPP shall describe and ensure the implementation of practices which will be used to reduce the pollutants in storm water discharges associated with construction activity at the construction site and assure compliance with the terms and conditions of this permit. When developing SWPPPs . applicants must follow the procedures in Addendum A of this permit to determine whether listed endangered or threatened species or critical habitat would be affected by the applicant's storm water discharges or storm water discharge-related activities . Any information on whether listed species or critical habitat are found in proximity to the construction site must be included in the SWPPP . Any terms or conditions that are imposed under the eligibility requirements of Part I.B.3.e and Addendum A of this permit to protect listed species or critical habitat from storm water discharges or storm water discharge-related activity must be incorporated into the SWPPP . Permittees must implement the applicab le provisions of the SWP PP required under this part as a condition of this permit. A. Deadlines for Plan Preparation and Compliance The storm water pollution prevention plan shall: 1. Be completed prior to the submittal of an NOI to be covered under this p e rmit (except as provided in Parts II.A.5 and Il .A.6) updated as appropriate; and 2. Provide for compliance with the ter ms and schedule of the SWPPP beginning with the initiation of construction activities . B. Signature , Plan Review and Making Plans Available 1. The SWPPP shall be signed in accorda nce with Part VI.G, and be retained on-site at the facility which generates the storm water discharge in accordance with Part V (Retention of Records) of this permit. 2 . The permittee shall post a notic e near the main entrance of the construction site with the following information : a . The NPDES permit number for the project or a copy of the NOI if a permit number has not yet been assigned; b . The name and telephone number of a local contact person; c. A brief description of the project; and d. The location of the SWPPP if the site is inactive or does not have an on- site location to store the plan. If posting this information near a main entrance is infeasible due to safety" concerns, the notice shall be posted in a local public building. If the construction project is a linear construction project (e .g .. pipeline , highway. etc .). the notice must be placed in a publicly accessible location near where construction is actively underway and moved as necessary. This permit does not provide the public with any right to trespass on a construction site for any reason . including inspection of a site ; nor does this permit require that permittees allow members of the public access to a construction site . 3 . The permittee shall make SWPPPs available upon request to the Director, a State , Tribal or local agency approving sediment and erosion plans. grading plans. or storm water management plans ; local government officials; or the operator of a municipal separate storm sewer receiving discharges from the site. The copy of the SWPPP that is required to be kept on-site or locally available must be made available to the Director for review at the time of an on-site inspection. Also. in the interest of public in volvement. EPA encourages permittees to make t h eir SWPPPs availab le to the public for viewing during normal business hours. 4 . The Director may notify the permittee at any time that the SWPPP does not meet one or more of the minimum requirements of this Part . Such notification shall identify those provision of this permit which are not being met by the SWPPP as well as those requiring modification in order to meet the minimum req uirements of this Part. Within seven (7) calendar days of receipt of such notification from the Director (or as otherwise provided by the Director), the permittee shall make the required changes to the SWPPP and shall submit to the Director a written certification that the requested changes have been made. The Director may take appro priate enforcement action for the period of time the permittee was operating under a plan that did not meet the minimum requirements of this permit. C. Keeping Plans Current The permittee must amend the storm water pollution prevention plan whenever: l. There is a change in design. construction, operation , or maintenance which has a significant effect on the discharge of pollutants to the waters of the United States which has not been addressed in the SWPPP; or 2. Inspections or investigations by site operators, local. State. Tribal or Federal officials indicate the SWPPP is proving ineffective in eliminating or s ignificantly minimizing pollutants from sources identified under Part IV.D . l of this permit. or is otherwise not achieving the general objectives of controlling pollutants in storm water discharges associated with construction activity . D. Contents of Plan The storm water pollution prevention plan (SWPPP) shall include the following items: l . Site Des cription Each SWPPP shall provide a description of potential pollutant sources and other information as indicated below: a. A description of the nature of the construction activity; b. A description of the intended sequence of major activities which disturb soils for major portions of the site (e.g .. grubbing. excavation , grading. utilities and infrastructure installation); c . Estimates of the total area of the site and the total area of the site that is Federal Register /Vol. 63 , No. 128/Monday, July 6 , 1998 /Notices 36503 expected to be disturbed by excavation. grading, or other activities includ ing off- site borrow and fill areas: d. An estimate of the runoff coefficient of the site for both the pre- construction and post-construction conditions and data describing the soil or the quality of any discharge from the site; e. A general location map (e.g .. a portion of a city or county map) and a site map indicating the following: drainage patterns and approximate slopes anticipated after major grading activities; areas of soil disturbance; areas which will not be disturbed: locations of major structural and nonstructural controls identified in the SWPPP: locations where stabilization practices are expected to occur: locations of off-site material. waste, borrow or equipment storage areas: surface waters (including wetlands); and locations where storm water discharges to a surface water; f. Location and description of any discharge associated with industrial activity other than construction. including storm water discharges from dedicated asphalt plants and dedicated concrete plants, which is covered by this permit; g. The name of the receiving water(s) and the areal extent and description of wetland or other special aquatic sites (as described under 40 CFR 230.3(q-l)) at or near the site which will be disturbed or which will receive discharges from disturbed areas of the project; h. A copy of the permit requirements (attaching a copy of this permit is acceptable): i. Information on whether listed endangered or threatened species. or critical habitat . are found in proximity to the construction activity and whether such species may be affected by the applicant's storm water discharges or storm water discharge-related activities; and j. Information on whether storm water discharges or storm water discharge- related activities would have an affect on a property that is listed or eligible for listing on the National Register of Historic Places; where effects may occur. any written agreements with the State Historic Preservation Officer. Tribal Historic Preservation Officer. or other Tribal leader to mitigate those effects. 2. Controls Each SWPPP shall include a description of appropriate control measures (i.e ., BMPs) that will be implemented as part of the construction activity to control pollutants in storm water discharges . The SWPPP must clearly describe for each major activity identified in Part IV.D. l .b: (a) appropriate control measures and the general timing (o r sequence) during th e construction process that the meas ures will be implemented; and (b) whic h permittee is responsible for implementation (e.g .. perimeter co ntrols for one portion of the site will be installed by Contractor A after the clearing and grubbing necessary for installation of the measure. but before the clearing and gru bbing for the remaining portions of the site; and perimeter controls will be actively maintained by Contractor B until final stabilization of those portions of the site up-gradient of the perimeter control; and temporary perimeter controls will be removed by the owner after final stabilization). The description and implementation of control measures shall address the following minimum components: a. Erosion and Sediment Controls. (1) Short and Long Term Goals and Criteria: (a) The construction-phase erosion and sediment controls should be designed to retain sediment on site to the extent practicable . (b) All control measures must be properly selected. installed. and maintained in accordance with the manufacturers specifications and good engineering practices. If periodic inspections or other information indicates a control has been used inappropriately. or incorrectly. the permittee must replace or modify the control for site situations . (c) If sediment escapes the construction site . off-site accumulations of sediment must be removed at a frequency sufficient to minimize offsite impacts (e .g .. fugitive sediment in street could be washed into storm sewers by the next rain and/or pose a safety hazard to users of public streets). (d) Sediment must be removed from sediment traps or sedimentation ponds when design capacity has been reduced by 50 %. (e) Litter . construction debris, and construction chemicals exposed to storm water shall be prevented from becoming a pollutant source for storm water discharges (e.g .. screening outfalls , picked up daily). (f) Offsite material storage areas (also including overburden and stockpiles of dirt. borrow areas. etc .) used solely by the permitted project are considered a part of the project and shall be addressed in the SWPPP . (2) Stabilization Practices : The SWPPP must include a description of interim and permanent stabilization practices for the site. including a schedule of when the practices will be implemented. Site plans should ensure that existing vegetation is preserved where attain able and that disturbed portions of the site are stabilized. Stabilization practices may include but are not limited to: estab li shment of t e mporary vegetation. establishment of permanent vegetation. mulching . geotextiles. sod stabilization. vegetative buffer strips. protection of trees. preservation of mature vegetation. and other appropriate measures. Use of impervious surfaces for stabilization should be avoided . The following records shall be maintained and attached to the SWPPP : the dates when major grading activities occur; the dates w.hen construction activities temporarily or permanently cease on a portion of the site; and the dates when stabilization measures are initiated. Except as provided in Parts IV .D.2.a .(2)(a). {b). and (c) below. stabilization measures s hall be initiated as soon as practicable in portions of the site where construction activities have temporarily or permanently ceased. but in no case more than 14 days after the construction activity in that portion of the site h as temporarily or permanently ceased. (a) Where the initiation of stabilization measures by the 14th day after construction activity temporary or permanently cease is precluded by snow cover or frozen ground conditions . stabilization measures shall be initiated as soon as practicable. {b) Where construction activity on a portion of the site is temporarily ceased . and earth disturbing activities will be resumed within 21 days. temporary stabilization measures do not have to be initiated on that portion of site . (c) In arid areas (areas with an average annual rainfall ofO to 10 inches). semi- arid areas {areas with an average annual rainfall of 10 to 20 inches). and areas experiencing droughts where the initiation of stabilization measures by the 14th day after construction activity has temporarily or permanently ceased is precluded by seasonal arid conditions. stabilization measures shall be initiated as soon as practicable . (3) Structural Practices : The SWPPP must include a description of structural practices to divert flows from exposed soils. store flows or otherwise limit runoff and the discharge of pollutants from exposed areas of the site to the degree attainable . Structural practices may include but are not limited to : silt fences , earth dikes , drainage swales . sediment traps . check dams , subsurface drains . pipe slope drains. le vel spreaders. storm drain inlet protection, 36504 Federal Register /Vol. 63. No. 128 /Monday. Jul y 6 , 1998/Notices rock outlet protection. reinforced soil retaining systems. gabions . and temporary or permanent sediment basins . Placement of structural practices in floodplains should be avoided to the degree attainable . The installation of these devices may be subject to section 404 of the CW A. (a) For common drain age locations that serve an area with ten ( 10) or more acres dis turbed at one time, a temporary (or permanent) sediment basin that provides storage for a calculated volume of runoff from a 2 year, 24 hour storm from each disturbed acre drained , or equivalent control measures. shall be provided where attainable until final stabilization of the site. Where no such calculation has been performed , a temporary (or permanent) sediment basin providing 3,600 cubic feet of storage per acre drained, or equivalent control measures. shall be provided where attainable until final stabilization of the site . When computing the number of acres draining into a common location it is not necessary to include flows from offsite areas and flows from onsite areas that are either undisturbed or have undergone final stabilization where such flows are diverted around both the disturbed area and the sediment basin. In determining whether installing a sediment basin is attainable. the permittee may consider factors such as site soils, slope, available area on site. etc. In any event, the permittee must consider public safety, especially as it relates to children, as a design factor for the sediment basin and alternative sediment controls shall be used where site limitations would preclude a safe design . For drainage locations which serve ten (10) or more disturbed acres at one time and where a temporary sediment basin or equivalent controls is not attainable, smaller sediment basins and/or sediment traps should be used . Where neither the sediment basin nor equivalent controls are attainable due to site limitations, silt fences. vegetative buffer strips. or equivalent sediment controls are required for all down slope boundaries of the construction area and for those side slope boundaries deemed appropriate as dictated by individual site conditions. EPA encourages the use of a combination of sediment and erosion control measures in order to achieve maximum pollutant removal. (b} Fo r drainage locations serving less than 10 acres . smaller sediment basins and/or sediment traps should be used. At a minimum, silt fences , vegetative buffer strips, or equivalent sediment controls are required for all down slope boundaries (and for those side slope boundaries deemed appropriate as dictated by individual site conditions) of the construction area unless a sediment basin providing storage for a calcu lated volume of runoff from a 2 year. 24 hour storm or 3 .600 cubic feet of storage per acre drained is provided. EPA encourages the use of a combination of sediment and erosion control measures in order to achieve maximum pollutant removal. b . Storm Water Management. A description of measures that will be installed during the construction process to control pollutants in storm water discharges that will occur after construction operations have been completed must be included in the SWPPP . Structural measures should be placed on upland soils to the degree attainable. The installation of these devices may also require a separate permit under section 404 of the CWA . Permittees are only responsible for the installation and maintenance of storm water management measures prior to final stabilization of the site, and are not res ponsible for maintenance after storm water discharges associated with construction activity have been eliminated from the site. However. post- construction storm water BMPs that discharge pollutants from point sources once construction is completed may. in themselves. need authorization under a separate NPDES permit. (1) Such practices may include but are not limited to : storm water detention structures (including wet ponds); storm water retention structures; flow attenuation by use of open vegetated swales and natural depressions ; infiltration of runoff onsite; and sequential systems (which combine several practices). The SWPPP shall include an explanation of the technical basis used to select the practices to control pollution where flows exceed predevelopment levels. (2) Velocity dissipation devices shall be placed at discharge locations and along the length of any outfall channel to provide a non-erosive flow velocity from the structure to a water course so that the natural physical and biological characteristics and functions are maintained and protected (e.g .. no significant changes in the hydrological regime of the receiving water). c. Other Controls . (1) No solid materials , including building materials . shall be discharged to waters of the United States, except as authorized by a permit issued under section 404 of the CW A. (2) Off-site vehicle tracking of sediments and the generation of dust shall be minimized . (3) The SWPPP shall be consistent with applicable State, Tribal and/or local waste disposal. sanitary sewer or septic system regulations to the extent these are located within the permitted area. (4) The SWPPP shall include a description of construction and waste materials expected to be stored on-site wit h updates as appropriate. The SWPPP shall also include a description of co ntrols to reduce pollutants from these materials incl uding storage practices to m i nimize exposure of the materials to storm water, and spill prevention and response . (5) The SWPPP shall include a description of pollutant sources from areas other than construction (including storm water discharges from dedicated asphalt plants and dedicated concrete plants). and a description of controls and measures that will be implemented at those sites to minimize pollutant discharges. (6) The SWPPP shall include a description of measures necessary to protect listed endangered or threatened species. or critical habitat , including any terms or conditions that are imposed under the eligibility requirements of Part I.B .3 .e(4) of this permit. Failure to describe and implement such measures will result in storm water discharges from construction activities that are ineligible for coverage under this permit. d. Approved State, Tribal or Local Plans . (1) Permittees which discharge storm water associated with construction activities must ensure their storm water pollution prevention plan is consistent with requirements specified in applicable sediment and erosion site plans or site permits. or storm water management site plans or site permits approved by State, Tribal or local officials . (2) Storm water pollution prevention plans must be updated as necessary to remain consistent with any changes applicable to protecting surface water resources in sediment and erosion site plans or site permits. or storm water management site plans or site permits approved by State, Tribal or local officials for which the permittee receives written notice. 3 . Maintenance All erosion and sediment control measures and other protective measures identified in the SWPPP must be maintained in effective operating condition. If site inspections required by Part IV.0.4 . identify BMPs that are not operating effectively. maintenance shall be performed before the next anticipated storm event . or as necessary to maintain the continued effectiveness of storm Federal Register /Vol. 63, No . 128/Monday, July 6, 1998 /Notices 36505 water controls . If maintenance prior to the next anticipated storm event is impracticable, maintenance must be scheduled and accomplished as soon as practicable. 4 . Inspections Qualified personnel (provided by the permittee or cooperatively by multiple permittees) shall inspect disturbed areas of the construction site that have not been finally stabilized, areas used for storage of materials that are exposed to precipitation , structural control measures, and locations where vehicles enter or exit the site, at least once every fourteen (14) calendar days and within 24 hours of the end of a storm event of 0 .5 inches or greater. Where sites have been finally or temporarily stabilized, runoff is unlikely due to winter conditions (e.g ., site is covered with snow, ice , or frozen ground exists), or during seasonal arid periods in arid areas (areas with an average annual rainfall of 0 to 10 inches) and semi-arid areas (areas with an average annual rainfall of 10 to 20 inches) such inspections shall be conducted at least once every month. Permittees are eligible for a waiver of monthly inspection requirements until one month before thawing conditions are expected to result in a discharge if all of the following requirements are met: (1) the project is located in an area where frozen conditions are anticipated to continue for extended periods of time (i.e., more than one month); (2) land disturbance activities have been suspended; and (3) the beginning and ending dates of the waiver period are documented in the SWPPP. a . Disturbed areas and areas used for storage of materials that are exposed to precipitation shall be inspected for evidence of, or the potential for, pollutants entering the drainage system. Sediment and erosion control measures identified in the SWPPP shall be observed to ensure that they are operating correctly. Where discharge locations or points are accessible , they shall be inspected to ascertain whether erosion control measures are effective in preventing significant impacts to receiving waters. Where discharge locations are inaccessible, nearby downstream locations shall be inspected to the extent that such inspections are practicable . Locations where vehicles enter or exit the site shall be inspected for evidence of offsite sediment tracking. b . Based on the results of the inspection, the SWPPP shall be modified as necessary (e .g ., show additional controls on map required by Part IV .D. l ; revise description of controls required by Part IV .D.2) to inclu de additional or modified BMPs designed to correct problems identified. Revisions to the SWPPP shall be completed within 7 calendar days following the inspection. If existing BMPs need to be modified or if additional BMPs are necessary , implementation shall be completed before the next anticipated storm event. If implementation before the next anticipated storm event is impracticable, they shall be implemented as soon as practicable. c. A report summarizing the scope of the inspection , name(s) and qualifications of personnel making the inspection. the date(s) of the inspection . and major observations relating to the implementation of the SWPPP shall be made and retained as part of the SWPPP for at least three years from the date that the site is finally stabilized . Major observations should include: the location(s) of discharges of sediment or other pollutants from the site; location(s) of BMPs that need to be maintained; location(s) of BMPs that failed to operate as designed or proved inadequate for a particular location; and location(s) where additional BMPs are needed that did not exist at the time of inspection . Actions taken in accordance with Part IV .D.4 .b of this permit shall be made and retained as part of the storm water pollution prevention plan for at least three years from the date that the site is finally stabilized . Such reports shall identify any incidents of non- compliance . Where a report does not identify any incidents of non- compliance. the report shall contain a certification that the facility is in compliance with the storm water pollution prevention plan and this permit. The report shall be signed in accordance with Part VI.G of this permit. 5. Non-Storm Water Discharges Except for flows from fire fighting activities. sources of non-storm water listed in Part III .A.2 or 3 of this permit that are combined with storm water discharges associated with construction activity must be identified in the SWPPP. The SWPPP shall identify and ensure the implementation of appropriate pollution prevention measures for the non-storm water component(s) of the discharge . Part V. Retention of Records A. Documents The permittee shall retain copies of storm water pollution prevention plans and all reports required by this permit, and records of all data used to complete the Notice of Intent to be covered by this permit. for a period of at least three years from the date that the site is finall y stabilized . This period may be extended by requ est of the Dire cto r at any time. B. Accessibility The permittee shall retain a copy of the storm water pollution prevention plan required by this permit (including a copy of the permit language) at the construction site (or other local location accessible to the Director. a State , Tribal or lo ca l agency approving sediment and erosion plans . grading plans . or storm water management plans; local government officials; or the operator of a municipal separate storm sewer receiving discharges from the site) from the date of project initiation to the date of final stabilization. Permittees with day-to -day operational control over SWPPP implementation shall have a copy of the SWPPP available at a central location on -si te for the use of all operators and those identified as having responsibilities under the SWPPP whenever they are on the construction site. C. Addresses Except for the submittal of NOis and NOTs (see Parts II.C and VIII.B . respectively). all written correspondence concerning discharges in any State. Indian Country land or from any Federal facility covered under this permit and directed to the EPA, including the submittal of individual permit applications , shall be sent to the address listed below: United States EPA, Region 6, Storm Water Staff, Enforcement and Compliance Assurance Division (GEN-WC), EPA SW Construction GP, P .O . Box 50625 , Dallas . TX 75205 . Part VI. Standard Permit Conditions A. Duty To Comply 1. The Permittee Must Comply With All Conditions of This Permit Any permit noncompliance constitutes a violation of CWA and is grounds for enforcement action; for permit term ination. revocation and reissuance. or modification; or for denial of a permit renewal application. 2 . Penalties for Violations of Permit Conditions The Di rector will adjust the civil and administrative penalties listed below in accordance with the Civil Monetary Penalty Infl ation Adjustment Rule (Federal Register : December 31, 1996, Volume 61, Number 252, pages 69359- 69366, as corrected. March 20. 1997, Volume 62. Number 54. pages 13514- 36506 Federal Register /Vol. 63 , No . 128 /Monday. July 6 , 1998 /Notices 13517) as mandated by the Debt Collection Improvement Act of 1996 for inflation on a periodic ba s is . This rule allows EPA 's penalties to keep pace with inflation . The Agency is required to review its penalties at least once every four y ears thereafter and to adjust them as necessary for inflation according to a specified formula. The civil and administrative penalties listed below w e re adjusted for inflation starting in 1996. a. Criminal. (1) Negligent Violations . The CWA provides that any person who negligent ly violates permit conditions implementing sections 301. 302. 306, 307, 308 , 318 , or 405 of the Act is subject to a fine of not less than $2,500 nor more than $25,000 per day of violation , or by imprisonment for not more than 1 year , or both . (2) Knowing ViolaUons . The CWA provides that any person who knowingly violates permit conditions implementing sections 301, 302, 306, 307, 308 , 318, or 405 of the Act is subject to a fine of not less than $5,000 nor more than $50,000 per day of violation, or by imprisonment for not more than 3 years , or both . (3) Knowing Endangerment. The CWA provides that any person who knowingly violates permit conditions implementing sections 301. 302, 306 , 307 , 308 , 318 , or 405 of the Act and who knows at that time that he is placing another person in imminent danger of death or serious bodily injury is subject to a fine of not more than $250,000. or by imprisonment for not more than 15 years. or both . (4) False Statement. The CWA provides that any person who knowingly makes any false material statement, representation, or certification in any application, record, report , plan, or other document filed or required to be maintained under the Act or who knowingly falsifies , tampers with, or r enders inaccurate, any monitoring device or method required to be maintained under the Act. shall upon conviction, be punished by a fine of not more than $10 ,000 or by imprison ment for not more than two years, or by both . If a conviction is for a violation committed after a first conviction of such person under this paragraph , punishment shall be by a fine of not more than $20 ,000 per day of violation, or by imprisonment of not more than four years . or by both. (See section 309 .c.4 of the Clean Water Act). b . Civil Penalties . The CWA provides that any person who violates a permit condition implementing sections 301, 302, 306 , 307 , 308 , 318 , or 405 of the Act is subject to a civil penalty not to ex cee d $27 .500 per day for each v iolation . c. Administrative Penalties . The CW A provi des that a ny pers on who violates a p ermit condition implementing s ections 301,302 ,306, 307 ,308 ,318 . or405of the Act is subject to an administrative p enalty . as follows: (I) Class I Penalty. Not to exceed $11 ,000 per violation nor shall the m axi mum amount exceed $27 ,500. (2) Class II Penalty. Not to exceed $11,000 per day for each day during w hich t he violation continues, nor sha ll the maximum amount exceed $137 ,500 . B . Continuation of the Expired General Pe rmit If this permit is not reissued or re placed prior to the expiration date , it will be administratively continued in accordance with the Administrative Procedures Act and rema in in force and effect. Any permittee who was granted permit coverage prior to the expiration date will automatically remain covered by the continued permit until the earlier of: 1. Reissuance or replacement of this permit, at which time the permittee must comply with the Notice of Intent conditions of the new permit to maintain authorization to discharge; or 2 . The permittee's submittal of a Notice of Termination; or 3 . Issuance of an individual permit for the permittee 's discharges; or 4 . A formal permit decision by the Director not to reissue this general permit, at which time the permittee must seek coverage under an alternative general permit or an individual permit. C. Need To Halt or Reduce Activity Not a Defense It shall not be a defense for a permittee in an enforcement action that it w ould have been necessary to halt or reduce the permitted activity in order to maintain compliance with the conditions of this permit. D. Duty To Mitigate The permittee shall take all re asonable steps to minimize or prevent any discharge in violation of this permit which has a reasonable likelihood of adversely affecting human health or the env ironment. E. Duty To Provide Information The permittee shall furnish to the Director or an authorized representative of the Director any information which is requested to determine compliance with this permit or other information. F. Other InformaUon · · When the permittee becomes aware that he or she failed to submit any relevant facts or submitted incorrect information in th e Notice of Intent or in an y other report to the Director . he or she shall promptly submit such facts or information . G. Signatory Requirements All Notices of Intent, Notices of Termination. storm water pollution prevention plans . reports , certifications or information either submitted to the Director or the operator of a large or medium municipal separate storm s e wer system , or that this permit requires be maintained by the permittee, shall be signed as follows : 1. All Notices of Intent and Notices of Termination shall be signed as follows : a . For a corporation: by a responsible corporate officer . For the purpose of this section , a responsible corporate officer means: a president. secretary , treasurer , or vice-president of the corporation in charge of a principal business function , or any other person who performs similar policy or decision-making functions for the corporation; or the manager of one or more manufacturing . production or ope rating facilities employing more than 250 persons or having gross annual sales or expenditures exceeding $25,000,000 (in second-quarter 1980 dollars) if authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures ; b . For a partnership or sole proprietorship: by a general partner or the proprietor, respectively; or c . For a municipality, State, Federal, or other public agency: by either a principal executive officer or ranking elected official. For purposes of this section, a principal executive officer of a Federal agency includes (I) the chief executive officer of the agency , or (2) a senior executive officer having responsibility for the overall operations of a principal geographic unit of the agency (e .g .. Regional Administrators of EPA). 2 . All reports required by this permit and other information requested by the Director or authorized representative of the Director shall be signed by a person described above or by a duly authorized representative of that person. A person is a duly authorized representative only if: a . The authorization is made in writing by a person described above and submitted to the Director. b . The authorization specifies either an individual or a position having responsibility for the overall operation of the regulated facility or activity, such as the position of manager, operator, superintendent, or position of equivalent responsibility or an Federal Register /Vol. 63 . No . 128/Monday. July 6 . 1998 /Notices 36507 individual or position having overall responsibility for environmental matters for the company . (A duly authorized repr ese ntative may thus be either a named individual or any indiv idual occupying a named position). c. Changes to Authorization. If an authorization under Part II.B is no longer accurate because a different operator has responsibility for the ove rall operation of the construction site , a new Notice of Intent satisfying the requirements of Part II .B must be submitted to the Director prior to or together with any reports, information. or applications to be signed by an authorized representative . The change in authorization must be submitted within the time frame specified in Part II .A.3 . and sent to the address specified in Part II.C . d . Certification . Any person signing documents under Part VI.G shall make the following certification : "I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system. or those persons directly responsible for gathering the information, the information submitted is. to the best of my knowledge and belief, true. accurate. and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations." H. Penalties for Falsification of Reports Section 309(c) (4) of the Clean Water Act provides that any person who knowingly makes any false material statement, representation , or certification in any record or other document submitted or required to be maintained under this permit. including reports of compliance or noncompliance shall. upon conviction. be punished by a fine of not more than $10,000, or by imprisonment for not more than two years. or by both. I. Oil and Hazardous Substance Liability Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the permittee from any responsibilities , liabilities , or penalties to which the permittee is or may be subject under section 311 of the CW A or section 106 of the Comprehensive Environmental Response. Compensation and Liability Act of 1980 (CERC LA). ]. Property Rights The issuance of this permit does not convey any property rights of any sort. nor any exclusive privileges . nor does it authorize any injury to private property nor any invasion of personal rights , nor any infringement of Federal. State or local laws or regulations . K. Severability The provisions of this permit are severable . and if any provision of this permit. or the application of any provision of this permit to any circumstance . is held invalid . the application of such provision to other circumstances. and the remainder of this permit shall not be affected thereby . L. Requiring an Individual Permit or an Alternative General Permit 1. The Director may require any person authorized by this permit to apply for and/or obtain either an individual NPDES permit or an alternative NPDES general permit. Any interested person may petition the Director to take action under this paragraph . Where the Director requires a permittee authorized to discharge under this permit to apply for an individual NPDES permit, the Director shall notify the permittee in writing that a permit application is required . This notification shall include a brief statement of the reasons for this decision . an application form, a statement setting a deadline for the permittee to file the application . and a statement that on the effective date of issuance or denial of the individual NPDES permit or the alternative general permit as it applies to the individual permittee. coverage under this general permit shall automatically terminate. Applications shall be submitted to the appropriate Regional Office indicated in Part V.C of this permit. The Director may grant additional time to submit the application upon request of the applicant. If a p ermittee fails to submit in a timely manner an individual NPDES permit application as required by the Director under this paragraph, then the applicability of this permit to the individual NPDES permittee is automatically terminated at the end of the day specified by the Director for application submittal. 2. Any permittee authorized by this permit may request to be excluded from the coverage of this permit by applying for an individual permit. In such cases. the permittee shall submit an individual application in accordance with the requirements of 40 CFR 122.26(c)(l)(ii), with reasons supporting the request, to the Director at the address for the ----------------------- appropriate Regional Office indicated in Part V.C of this permit. The request ma y be granted by is s uance of a ny individual permit or a n alternative ge n era l permit if the reasons cited by the pe rmittee are adequate to support the request . 3 . When an individual NPDES permit is issued to a permittee otherwise s ubject to this permit, or the p e rmittee is authorized to discharge under an alternative NPDES general permit , the applicability of this permit to the individual NPDES permittee is automatically terminated on the effective date of the indiv idual p e rmit or the date of authorization of coverage under the alternative general permit, whichever the case may be . When an individual NPDES permit is denied to an owner or operator otherwise subject to this permit. or the owner or operator is denied for coverage under an alternative NPDES general permit, the applicability of this permit to the individual NPDES permittee is automatically terminated on the date of such denial. unless otherwise specified by the Director. M. State/Tribal Environmental Laws 1. Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the permittee from any responsibilities . liabilities. or penalties established pursuant to any applicable Stateffribal law or regulation under authority preserved by section 510 of the Act. 2. No condition of this permit shall release the permittee from any responsibility or requirements under other environmental statutes or regulations . N. Proper Operation and Maintenance The permittee shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the permittee to achieve compliance with the conditions of this permit and with the requirements of storm water pollution prevention plans . Proper operation and maintenance also includes adequate laboratory controls and appropriate quality assurance procedures. Proper operation and maintenance requires the operation of backup or auxiliary facilities or similar systems. installed by a permittee only when necessary to achieve compliance with the conditions of this permit. 0. Inspection and Entry The permittee shall allow the Director or an authorized representative of EPA. the State/Tribe , or, in the case of a construction site which discharges 36508 Federal Register /Vol. 63, No . 128 /Monday . July 6 , 1998/Notices through a municipal separate storm sewer. an authorized representative of the mun icipal owner/operator or the separate storm sewer receiving the discharge. upon the presentation of credentials and other documents as may be required by law . to: 1. Enter upon the permittee's pre mises where a regulated facility or activity is located or conducted or where records must be kept under the conditions of this permit; 2. Have access to and copy at reasonable times. any records that must be kept under the conditions of this permit; and 3 . Inspect at reasonab le times any facilities or equipment (including monitoring and control equipment). P. Permi t Actions This pe rmit may be modified. revoked and reissued. or terminated for cause. The filing of a request by the permittee for a permit modification , revocation and reissuance, or termination , or a notification of planned changes or anticipated noncompliance does not stay any permit condition. Part VII. Reopener Clause A. If there is evidence indicating that the storm water discharges authorized by this permit cause . have the reasonable potential to cause or contribute to, a violation of a water quality s tandard, the permittee may be required to obtain an individual permit or an alternative general permit in accordance with Part I.C of this permit, or the permit may be modified to include different limitations and/or . requirements. B. Permit modification or revocation will be conducted according to 40 CFR 122 .62 . 122.63 , 122.64 and 124 .5. C. EPA may propose a modification to this permit after further discussions between the Agency and the Advisory Council on Historic Preservation for the protection of historic properties . Part VIII. Termination of Coverage A. Notice of Termination Permittees must submit a completed Notice of Termination (NOT) that is signed in accordance with Part VI.G of this permit when one or more of the conditions contained in Part I.D .2 . (Terminating Coverage) have been met at a construction project. The NOT form found in Addendum D will be used unless it has been replaced by a revised version by the Director. The Notice of Terminat ion shall include the following information: 1. The NPDES permit number for the storm water discharge identified by the Notice of Termination ; 2. An indication of whether the s tor m water di sc harges associated with constru c ti o n ac ti v ity have been elimin ated (i.e .. regulated discharges of storm water are be ing terminated) or the permittee is no longer an operator at the site; 3 . The name. address and t e lephone number of the permittee su bmitting the Notice of Termination ; 4 . The name of the proj ec t and street address (or a description of location if no stre e t address is available) of the construction site for which the notification is submitted; 5 . The latitude and longitude of the construction site ; and 6. The follo wing certification, signed in accordance with Part VI.G (signato ry requirements) of this permit. For co n struction projects with more than one permittee and/or operator, the per mittee need only make this certification for those portions of the construction site where the permittee was authorized under this permit and not for areas where the permittee was not an operator: "I certify under penalty of law that all storm water discharges associated with industrial activity from the identified facility that authorized by a general per mit have been eliminated or that I am no longer the operator of the facility or construction site . I understand that by submitting this notice of termination. I am no longer authorized to discharge storm water associated with industrial activity under this general permit. and that discharging pollutants in storm water associated with industrial activity to waters of the United States is unlawful under the Clean Water Act where the discharge is not authorized by a NPDES permit. I also understand that the submittal of this Notice of Termination does not release an operator from liability for any violations of this permit or the Clean Water Act.'' For the purposes of this certification, elimination of storm water discharges ass ociated with construction activity means that all disturbed soils at the portion of the construction site where the operator had control have been finally stabilized (as defined in Part IX.I) and temporary erosion and sediment control measures have been removed or will be removed at an appropriate time to ensure final stabilization is m a intained, or that all storm water discharges associated with construction activities from the identified site that are authorized by a NPDES general permit have otherwise been eliminated from the portion of the construction site where the operator had control. B. Addresses I . All Notices of Termination . signed in accordance with Part VI.G of th is permit, are to be submitted using the form provided by the Director (or a photocopy thereof), to the address specified on the NOT form. Part IX . Definitions A. Best Management Practices ("BMPs") means schedules of activities . prohibitions of practices. maintenance procedures. and other management practices to prevent or reduce the discharge of pollutants to waters of the United States. BMPs also include treatment requirements, operating procedures, and practices to control plant site runoff. spillage or leaks, sludge or waste disposal. or drainage from raw material storage. B. Control Measure as used in this permit, refers to any Best Management Practice or other method used to prevent or reduce the discharge of pollutants to waters of the United States. C. Commencement of Construction the initial disturbance of soils associated with clearing . grading. or excavating activities or other construction activities. D. CWA means the Clean Water Act or the Federal Water Pollution Control Act. 33 U.S.C. § 1251 et seq. E. Director means the Regional Administrator of the Environmental Protection Agency or an authorized representative . F. Discharge when used without qualification means the "discharge of a pollutant." G. Discharge of Storm Water Associated With Construction Activity as used in this permit, refers to a discharge of pollutants in storm water runoff from areas where soil disturbing activities (e.g .. clearing. grading , or excavation). construction materials or equipment storage or maintenance (e.g .. fill piles . borrow areas. concrete truck washout. fueling), or other industrial storm water directly related to the construction process (e .g .. concrete or asphalt batch plants) are located. H . Facility or Activity means any NPDES "point source" or any other facility or activity (including land or appurtenances thereto) that is subject to regulation under the NPDES program . I. Final Stabilization means that either: 1. All soil d isturbing activities at the site have been completed and a uniform (e .g., evenly d istributed , without large bare areas) perennial vegetative cover with a density of 70% of the native background vegetative cover for the area Federal Register I Vol. 63 , No . 128 I Monday . July 6. 1998 I Notices 36509 has been established on alt unpaved areas and areas not covered by permanent structures . or equivalent permanent stabilization measures (such as the use of riprap. gabions . or geotextiles) have been employed. In some parts of the country. background native vegetation will cover less than I 00% of the ground (e .g .. arid areas. beaches). Establishing at least 70 % of the natural cover of native vegetat ion meets the vegetative cover criteria for final stabilization (e.g .. if the native vegeta tion covers 50% of the ground, 70 % of 50 % would requ ire 35 % total cover for final stabilization ; on a beach with no natural vegetation . no stabilization is required); or 2. For individual lots in residential construction by either: (a) the homebuilder completing final stabilization as specified above . or (b) the homebuilder establishing temporary stabilization including perimeter controls for an individual lot prior to occupation of the home by the homeowner and informing the homeowner of the need for, and benefits of. final stabilization. (Homeowners typically have an incentive to put in landscaping functionally equivalent to final stabilization as quick as possible to keep mud out of their homes and off their sidewalks and driveways .); or 3 . For construction projects on land used for agricultural purposes (e.g., pipelines across crop or range land). final stabilization may be accomplished by returning the disturbed land to its preconstruction agricultural use. Areas disturbed that were not previously used for agricultural activities . such as buffer strips immediately adjacent to "waters of the United States." and areas which are not being returned to their preconstruction agricultural use must meet the final stabilization criteria in (1) or (2) above . ]. Flow-Weighted Composite Sample means a composite sample consisting of a mixture of aliquots collected at a constant time interval. where the volume of each aliquot is proportional to the flow rate of the discharge. K. Large and Medium Municipal Separate Storm Sewer System means all municipal separate storm sewers that are either: 1. Located in an incorporated place (city) with a population of I 00,000 or more as determined by the latest Decennial Census by the Bureau of Census (these cities are listed in Appendices F and G of 40 CFR 122); or 2. Located in the counties with unincorporated urbanized populations of 100.000 or more, except municipal separate storm sewers that are located in the incorporated places . townships or towns within such counties (these counties are listed in Appendices H and I of 40 CFR 122); or 3 . Owned or operated by a municipality other than those described in paragraph (i) or (i i) and that are designated by th e Director as part of th e large or medium municipal separate storm sewer system . L. NOl means Notice of Intent to be covered by this permit (see Part II of thi s permit). M . NOT means Notice of Termination (see Part VIII of this permit). N . Operator for the purpose of this permit and in the co ntext of storm water associated with construction activity . means any party associated with a construction project that meets either of the following two criteria: 1. The party has operational co ntrol over construction plans and specifications. including the ability to make modifications to those plans and specifications: or 2. The party has day-to -day operational control of those activities at a project which are necessary to ensure compliance with a storm water pollution prevention plan for the site or other permit conditions (e .g., they are authorized to direct workers at a site to carry out activities required by the SWPPP or comply with other permit conditions). This definition is provided to inform permittees of EPA · s interpretation of how the regulatory definitions of "owner or operator" and "facility or activity" are applied to discharges of storm water associated with construction activity . 0 . Owner or operator means the owner or operator of any "facility or activity" subject to regulation under the NPDES program . P . Point Source means any discernible. confined, and discrete conveyance. including but not limited to. any pipe , ditch. channel, tunnel. conduit. well, discrete fissure. container. rolling stock. concentrated animal feeding operation, landfill leachate collection system. vessel or other floating craft from which pollutants are or may be discharged. This term does not include return flows from irrigated agriculture or agricultural storm water runoff. Q. Pollutant is defined at 40 CFR 122.2 . A partial listing from this definition includes: dredged spoil, solid waste, sewage . garbage, sewage sludge, chemical wastes . biological materials. heat, wrecked or discarded equipment, rock. sand. cellar dirt. and industrial or municipal waste. R. Runoff coefficient means the fraction of total rainfall that will appear at the conveya nce as runoff. S . Storm Water means storm water runoff. snow melt runoff. and surface runoff and drainage. T. Storm Water Associated With Industrial Activity is defined at 40 CFR l 22 .26(b)(l 4) and incorporated here by reference. Most re levant to this permit is 40 CFR l 22 .26 (b)(l 4)(x). which relates to construction activity including clearing. grading and excavation activities that result in the disturbance of five (5) or more acres of total land area. or are part of a larger common plan of development or sale. U. Waters of the United States means: 1. All waters which are currently used. were u sed in the past, or may be susceptible to use in interstate or foreign commerce. including all waters which are subject to the ebb and flow of the tide ; 2. All interstate waters, including interstate "wetlands"; 3 . All other waters such as interstate lakes , rivers. streams (including intermittent streams). mudflats . sandflats. wetlands. sloughs . prairie potholes , wet meadows. playa lakes. or natural ponds. the use, degradation. or destruction of which would affect or could affect interstate or foreign commerce including any such waters: a. Which are or could be used by interstate or foreign travelers for recreational or other purposes; b. From which fish or s hellfish are or could be taken and sold in interstate or foreign commerce; or c. Which are used or could be used for industrial purposes by industries in interstate commerce; 4 . All impoundments of waters otherwise defined as waters of the United States under this definition ; 5. Tributaries of waters identified in paragraphs (a) through (d) of this definition; 6 . The territorial sea; and 7 . Wetlands adjacent to waters (other than waters that are themselves wetlands) identified in paragraphs 1. through 6. of this definition . Waste treatment systems. including treatment ponds or lagoons designed to meet the requirements of the CWA (other than cooling ponds for steam electric generation stations per 40 CFR 423 which also meet the criteria of this definition) are not waters of the United States. Waters of the United States do not include prior converted cropland . Notw ithstanding the determination of an area's status as prior converted cro pland by any other federal agency. for the purposes of the Clean Water Act. the final authority regarding Clean 36510 Federal Register /Vol. 63, No . 128 /Monday, July 6, 1998/Notices Water Act jurisdiction remains w ith EPA. Part X. Pennit Conditions Applicable to Specific States and Indian Country Lands The provisions of this Part provide additions to the applicable conditions of Parts I through IX of this permit to reflect specific additional conditions required as part of the State or Tribal CWA Section 401 certification process . The additional revisions and requirements listed belo w are set forth in connection with. and only apply to . the following States and Indian Country lands . 1. LARJO*##l: Indian Country Lands in the State of Louisiana No additional requirements . 2. NMRJ 0*###: The State of New Mexico. Except Indian Country Lands No additional requirements . 3. NMRJO*##I: Indian Country Lands in the State of New Mexico , Except Navajo Reservation Lands (see Region 9) and Ute Mountain Reservation Lands (see Region B) a. Pueblo of Isleta . Copies of Notices of Intent (NO!). Notices of Termination (NOT). and Storm Water Pollution Prevention Plans (SWPPPs) must be submitted to the Pueblo of Isleta's Environment Department. Water Quality Program . (I) Par t II.C .2 of the permit is added as follows : Special NO! Requirements for the Pueblo of Isleta . NO!s shall also be submitted to the Pueblo of Isleta's Environment Department , Water Quality Program . concurrently with their submission to EPA at the following address: Isleta Environment Department. Water Quality Program. Pueblo of Isleta . PO Box 1270. Isleta. New Mexico 87022 . (2) Part VIII.B.2 is added to the permit as follows : Special NO! Requirements for the Pueblo of Isleta . NOTs shall also be submitted to the Pueblo of Isleta's Environment Department. Water Quality Program, concurrently with their submission to EPA. NOTs are to be sent to the address given in Part II.C .2 . (3) Part IV .A.3 is added to the permit as follows : Special Storm Water Pollution Prevention Plan Requirements for the Pueblo of Isleta . Storm water pollution prevention plans must be submitted to the Pueblo of Isleta Environment Department. Water Quality Program . ten working days prior to commencing the project on Pueblo of Isleta tribal lands . SWPPPs are to be sent to the address given in Part II.C .2. b. Pueblo of Nambe . Copies of Notices of Intent (NO!). Notices of Termination (NOT). and Storm Water Pollution Prevention Plans (SWPP Ps) must be submitted to the Pueblo of Nambe Department of Environment and Natural Resources. (I) Part 11 .C .2 is added to the permit as follows : Special NO! Requirements for the Pueblo of Nambe. NO!s shall also be submitted to the Pueblo of Nambe Department of Environment and Natural Resources at the same time they are submitted to EPA at the following address : Pueblo of Nambe , Department of Environment and Natural Resources . Route 1 Box 11788 , Santa Fe . New Mexico 87501 , Phone (505) 455-2036 . Fax (505) 455-2038 . (2) Part VIII.B .2 is added to the permit as follows: Special NOT Requirements for the Pueblo of Nambe . NOTs shall also be submitted to the Pueblo of Nambe Department of Environment and Natural Resources at the same time they are submitted to EPA. NOTs are to be sent to the address given in Part II.C.2. (3) Part IV.A.3 is added to the permit as follows : Special Storm Water Pollution Prevention Plan Requirements for the Pueblo of Nambe . Storm water pollution prevention plans must be submitted to the Pueblo of Nambe Department of Environment and Natural Resources before the project on Pueblo of Nambe tribal lands begins . SWPPPs are to be sent to the address given in Part 11 .C.2. c. Pueblo of Picuris . Copies of Notices of Intent (NO!), Notices of Termination (NOT). and Storm Water Pollution Prevention Plans (SWPPPs) must be submitted to the Pueblo of Picuris Environment Department. (1) Part 11 .C.2 is added to the permit as follows : Special NO! Requirements for the Pueblo of Picuris . NO!s shall also be submitted to the Pueblo of Picuris Environment Department at the same time they are submitted to EPA at the following address: Pueblo of Picuris , Environment Department, P.O . Box 127. Penasco, New Mexico 87553 . Phone (505) 587-2519 , Fax (505) 587-1071. (2) Part VIII .B.2 is added to the permit as follows: Special NOT Requirements for the Pueblo of Picuris . NOTs shall also be submitted to the Pueblo of Picuris Environment Department at the same time they are submitted to EPA . NOTs are to be sent to the address given in Part 11 .C.2. (3) Part IV.A.3 is added to the permit as follows : Special Storm Water Pollution Prevention Plan Requirements for the Pueblo of Picuris . Storm water pollution prevention plans must be submitted to the Picuris Environment Department before the project on Pueblo of Picuris tribal lands begins. SWPPPs are to be sent to the address given in Part 11 .C.2 . d . Pueblo of Pojoaque . Copies of Notices of Intent (NO!), Notices of Termination (NOT). and Storm Water Pollution Prevention Plans (SWPPPs) must be submitted to the Pueblo of Pojoaque Environment Department Director. (I) Part 11.C .2 is added to the permit as follows : Special NO! Requirements for the Pueblo of Pojoaque . NO!s shall also be submitted to the Pueblo of Pojoaque Environment Department Director at the same time they are submitted to EPA at the following address: Pueblo of Pojoaque , Environment Department. Route 11. P.O. Box 208. Santa Fe. New Mexico 87501. Phone (505) 455-3383 . Fax (505) 455-3633. (2) Part VIII .B.2 of the permit is added as follows : Special NOT Requirements for the Pueblo of Pojoaque . NOTs shall also be submitted to the Pueblo of Pojoaque Environment Department Director at the same time they are submitted to EPA . NOTs are to be sent to the address given in Part II.C .2 . (3) Part IV .A.3 is added to the permit as follows : Special Storm Water Pollution Prevention Plan Requirements for the Pueblo of Pojoaque. Storm water pollution prevention plans must be submitted to the Pueblo of Pojoaque Environment Department Director before the project on Pueblo of Pojoaque tribal lands begins . SWPPPs are to be sent to the address given in Part II .C.2. e. Pueblo of San Juan. No additional requirements . f Pueblo of Sandia. Copies of Notices of Intent (NOD . Notices of Termination (NOT). and Storm Water Pollution Prevention Plans (SWPPPs) must be submitted to the Pueblo of Sandia Environment Department . (1) Part II .C.2 of the permit is added as follows: Special NO! Requirements for the Pueblo of Sandia. NO!s shall also be submitted to the Pueblo of Sandia Environment Department at the same time they are submitted to EPA at the following address: Pueblo of Sandia, Environment Department, Box 6008. Bernalillo. New Mexico 87004. Phone (505) 867 -4533; Fax (505) 867 -9235. Federal Register /Vol. 63 . No. 128/Monday. July 6 . 1998 /Notices 36511 (2) Part VIII .B.2 is added to the permit as follows : Special NOT Requirements for the Pueblo of Sandia . NOTs shall also be submitted to the Pueblo of Sandia Environment Department at the same time they are submitted to EPA. NOTs are to be sent to the address given in Part II .C.2 . (3) Part IV .A.3 is added to the permit as follows : Special Storm Water Pollution Prevention Plan Requirements for the Pueblo of Sandia . Storm water pollution prevention plans must be submitted to the Pueblo of Sandia Environment Department before commencement of the project on Pueblo of Sandia tribal lands. SWPPPs are to be sent to the address given in Part II .C.2 . g . Pueblo ofTesuque. Copies of Notices of Intent (NOI). Notices of Termination (NOT). Storm Water Pollution Prevention Plans (SWPPPs). inspection reports , all certifications and "other information" must be submitted . by hand delivery or certified mail, to the Pueblo of Tesuque. (1) Part Il.C .2 of the permit is added as follows : Special NOI Requirements for the Pueblo of Tesuque. NOis shall also be submitted to the Pueblo of Tesuque at least five (5) days prior to any ground disturbing activity at the following address: Pueblo of Tesuque, Environment Department. Route 5, Box 3260-T, Santa Fe, New Mexico 87501 , Phone (505) 983-2667;Fax(505) 982- 2331. (2) Part VIIl.B .2 is added to the permit as follows: Special NOT Requirements for the Pueblo of Tesuque. NOTs shall also be. submitted to the Pueblo of Tesuque at the same time they are submitted to EPA. NOTs are to be sent to the address given in Part II .C.2 . (3) Part IV.A.3 is added to the permit as follows : Special Storm Water Pollution Prevention Plan Requirements for the Pueblo of Tesuque. Storm water pollution prevention plans must be submitted to the Pueblo of Tesuque at least five (5) days prior to any ground disturbing activity on Pueblo of Tesuque tribal lands. SWPPPs are to be sent to the address given in Part II .C.2. (4) Part V.D is added to the permit as follows: Special Reporting Requirements for the Pueblo of Tesuque. Copies of all certifications required by Section IV.D, and copies of "other information" required by Section VLF shall be provided to the Pueblo ofTesuque, by hand delivery or certified mail . Also. copies of all inspection reports required under Section IV .D.4 .c . shall be submitted within five (5) days of completion of the inspection . All information sent to the Pueblo of Tesuque is to be sent to the address given in Part II .C.2 . h. Santa Clara Pueblo. Copies of Notices of Intent (NOI) and Notices of Termination (NOT) must be submitted to the Santa Clara Pueblo Governors Office with a copy to the Office of Environmental Affairs . (1) Part I.C .4 . is added to the permit as follows : Special Authorization Requirements for the Santa Clara Pueblo. Prior to submitting a Notice of Intent. the operator must obtain permission from the Santa Clara Governors Office to do the construction . If the project is approved by the tribal administration. the operator may proceed with submitting a Notice of Intent (NOI). (2) Part II .C.2 is added to the permit as follows: Special NOI Requirements for the Santa Clara Pueblo. NOis shall also be submitted to the Santa Clara Pueblo Governors Office with a copy to the Office of Environmental Affairs at least two (2) weeks prior to the start of construction at the following address: Santa Clara Governors Office. PO Box 580 . Espanola . New Mexico 87532. Phone {505) 753-7326; Fax (505) 753- 8988. (3) Part VIII .B.2 is added to the permit as follows: Special NOT Requirements for the Santa Clara Pueblo. NOTs shall also be submitted to the Santa Clara Pueblo Governors Office with a copy to the Office of Environmental Affairs at least two (2) weeks prior to the start of construction . NOTs are to be sent to the address given in Part Il.C.2. i. All Other Indian Country lands in New Mexico. No additional requirements . 4. OKRJO*##l: Indian Country Lands in the State of Oklahoma No additional requirements. 5. OKRJO*##F: Oil and Gas Sites in the State of Oklahoma No additional requirements. 6. TXRJO*###: The State of Texas, Except Indian Country Lands a . Part III of the permit is modified as follows : Change the title of Part III . (Special Conditions, Management Practices, and other Non-Numeric Limitations) to : Part III. Special Conditions . Management Practices. and other Limitations. b. Part III.G is added to the permit as follows : Specia l umeric Limitations for Discharges from Ready-Mixed Concrete Plants in the State of Texas . except Indian Country lands. All discharges of storm water from ready-mixed concrete plants covered by this permit must comply with the following limitations: pH-Between 6 .0 and 9 .0 standard units Oil and Grease-15 mg /I as a daily maximum Total Suspended Solids-65 mg/l as a daily maximum These limitations must be taken into account when designing the storm water control measures to be used for areas draining any ready-mixed concrete plants operated by the permittee. 7. TXRJO*##I: Indian Country Lands in the State of Texas No additional requirements . Addendum A-Endangered Species I. Instructions for Applicants A. Background To meet its obligations under the Clean Water Act and the Endangered Species Act (ESA) and to promote those Acts' goals . the Environmental Protection Agency (EPA) is seeking to ensure the activities regulated by the Construction General Permit (CGP) are protective of endangered and threatened species and critical habitat. To ensure that those goals are met. applicants for CGP coverage are required under Part I.B .3 .e . to assess the impacts of their storm water discharges and storm water discharge-related activities on Federally listed endangered and threatened species ("listed species ") and designated critical habitat ("critical habitat") by following Steps On e through Six listed below . EPA strongly recommends that applicants follow these steps at the earliest possible stage to ensure that measures to protect listed species and critical habitat are incorporated early in the planning process. At minimum. the procedures should be followed when developing the storm water pollution prevention plan. Permittees and applicants also have an independent ESA obligation to ensure that their activities do not result in any prohibited "takes " of listed species.1 Many of the measures required in the CGP and in these instructions to protect species may also assist permittees in ensuring that their construction activities do not result in a prohibited take of species in violation of§ 9 of the ESA . Applicants who plan construction activities in areas that harbor endangered and threatened species are advised to ensure that ' Section 9 of the ESA prohibits any person from "taking " a lis ted species (e .g .. harassing or ha rming it) unless: (1) the taking is authorized through a "incidental take statement" as part of undergoing ESA § 7 formal cons ultation: (2) where an incidental take permit is obtained under ESA § 10 (which requires the development of a habitat conservation plan): or (3) where otherwise au thorized or exempted under the ESA. This prohibition applies to all entities including private individuals. businesses. and governments. 36512 Federal Register /Vol. 63 . No. 128 /Mo nday . July 6 . 1998/Notices they are protected from potential tak ings liability under ESA § 9 by obtaini ng either an ESA § 10 permit o r by requesting formal consu ltation under ESA § 7 (as described in more detail in Step Seven below). Applicants who seek protection from takings liability s hould be aware that it is p ossib le that some specific co nstruction activities may be too unrelated to storm water disc harges to be afforded incidental take coverage through an ESA § 7 consultation that is performed to meet the elig ibility requirements for CGP coverage . In such instances . applicants should apply for an ESA § 10 permit. Wh ere applicants are not sure whether to pursue a § I 0 permit or a § 7 consultation for takings protection . they should confer with the appropriate Fish and Wildlife Service (FWS) or National Marine Fisheri es Service (NMFS) office . This permit provides for the possibility of multiple permittees at a construction site. Applicants should be aware that in many cases they can meet the permit eligibility requirements by relying on another operator 's certification of eligib ility under Part I.B.3.e .(2)(a), (b), or (c). This is allowed under Part I.B .3.e .(2)(d) of the permit. However, the other operator's certification must apply to the applicant's project area and must address the effects from the applicant's storm water discharges and storm water discharge-related activities on listed species and critical habitat. By certifying e li gibility under Part I.B .3.e .(2)(d). the applicant agrees to comply with any measures or controls upon which the other operator 's certification under Part I.B .3.e .(2)(a). (b) or (c) was based . This situation will typically occur where a developer or primary contractor. such as one for construction of a subdivision or industrial park , conducts a comprehensive assessment of effects on listed species and critical habitat for the entire construction project, certifies eligibility under Part I.B.3.e.(2)(a), (b) or (c), and that certification is relied upon by other operators (i.e., contractors) at the site . However, applicants th at consider relying on another operator's ce rtifi cation should carefully review that certification a long with any supporting information . If an applicant does not believe that the operator's certification provides adequate coverage for the applicant 's storm water discharges and storm water discharge-related activities or for the applicant's particular project area , the applicant should provide its own independent certification under Part I.B .3.e.(2)(a). (b), or (c). B. Procedures To receive coverage under the Construction General Permit, applicants must assess the potential effects of their storm water discharges and storm water discharge-related activities on listed species and their critical habitat . To make this assessment, ap plicants must follow the steps outlined below prior to completing and submitting Notice of Intent (NOi) form. Applicants who are able to certify eligibility under Parts l.B .3.e.(2)(b). (c) or (d) because of a previously issued ESA § I 0 permit, a previously completed ESA § 7 consultation. or because the applicant's activities were already addressed in another operator's certification of eligibility may proceed directly to Step Six. Note.-The revised NOi fo rm wh ich was in cl uded in the CGP (see 62 FR 29822-29823 . June 2. 1997) requires that app li ca nts provide d etailed certification information on li sted species. That form is still under development and is not ex pected to be finali zed before this permit is issued . Until the rev ised NOi form is finali ze d , applicants must us e the existing NOi form which does not conta in the specific certification provisions relating to listed species and critical habitats at construction projects . However. use of the existing NOi form does not relieve applicants of their obligation to follow the procedures listed be low to d ete rmine if their construction storm water discharges or storm water discharge-related activities meet permit eligibility requirements for the protection of listed species and critical habitat. By fo ll owing these instructions, appl icants will have sufficient information on listed species and critical habitat in order to com pl ete either the existing or revised NOi form and sign the certification statement . Step One: Determine if the Construction Site ls Found Within Designated Critica l Habitat for Listed Species Some . but not all. listed species have designated critical habitat. Exact locations of such habitat is provided in the Service regulations at 50 CFR Parts 17 and 226. To determine if their construction site occurs within designated critical habitat, applicants should either: • Contact the nearest Fish and Wildlife Service (FWS) and National Marine Fisheries Service (NMFS) Office . A list of FWS and NMFS offices is found in Section II of this Addendum ; or • Contact the State or Tribal Nat ural Heritage Centers. These centers compile and disseminate information on Federally listed and other protected species. They fr equently have the most current information on listed species and critical habitat. A list of these centers is provided in Section III of this Addendum; or • Review those regulations (which can be found in many larger libraries). If the construction site is not located in designated critical habitat, then the applicant does not need to consider impacts to critical habitat when following Steps Two through Six below . If the site is located within critical habitat, then the applicant must look at impacts to critical habitat when following Steps Two through Six. Note that many but n ot all measures imposed to protect listed species under these steps will also protect critical habitat. Thus, meeting the eligibility requirements of this permit may require measures to protect critical habitat that are separate from those to protect listed species. Seep Two: Determine if Listed Species Are Located in the County(ies) Where the Construction Activity Will Occur Section IV of the Addendum contains a county-by-county list of listed endangered and threatened species ("listed species"), and proposed endangered and threatened species ("proposed species"). Since the list was current as of September 1, 1997 , applicants m ust also check with other sources for updated species and county information. These sources in clu de : Sections 11 and III of this Adde ndum ; EPA 's Office of Wastewater Management's web page at "http:// www.e pa .gov/owm" where updates of the county-by-co unty list will be posted on a p eriodic basis; Federal Register Notices ; S tate wild life protection offi ces ; a biologist or simila r professi onal in the environmental field; or any other method which can be reas onably ex pected to provide this information . Applicants with construction projects located in EPA Region 2 and Region 6 can call the Storm Water General Permits Hotline at (800) 245-6510 for further ass istance, while applicants with proj ects located in EPA Regions I, 3, 7 . 8 . 9 and 10 may contact the appropriate EPA Regional Office . Where a facility is loc ated in more than one county . the lists for all counties should be reviewed . Where a fac ility discharges into a water body which serves as a border between counties or which crosses a county line which is in the immediate vicinity of the point of discharge . applicants should also review the species list for the county which lies immediately downstream or is across the water body from the point of discharge. After a review of the available information from the sources mentioned above . if no listed species are located in a facility's county or if a facility's county is not listed, and the construction site is not located in crit ica l habitat as described under Step One . an ap plicant is eligible for CGP coverage without further inquiry into the presence of. or effec t to. listed species. The applicant must check the appropriate certification item on the revised NOi form (Part I.B .3.e .(2)(a)). Once the applicant has determined which listed species are located in his or her facility's county, the applicant must follow Step Three. Step Three: Determine if any Federally Listed Endangered and Threatened Species May Be Present in the Project Area The project area consists of: • The areas on the construction site where storm water discharges originate and flow toward the point of discharge into the receivi ng waters (including areas where excavation, site development, or other grou nd disturbance activities occur) and the immediate vicinity. Example(s) 1. Where bald eagles nest in a tree that is on or bordering a construction site and could be disturbed by the construction activity. 2. Where grading causes storm water to flow into a small wetland or other habitat that is on the site which contains listed species . • The areas where storm water discharges flow from the constructio n site to the point of discharge into receiving waters. Examp le(s) I . Where storm water flows into a ditch. swale. or gully which leads to receiving waters and where listed species (such as amphi bians) are found in the ditch , swale, or gully. • The areas where storm water from constr uction activities discharge into receivi ng waters and the areas in the immediate vicinity of the point of discharge . Federal Register /Vol. 63. No. 128 /Monday. July 6 . 1998/Notices 36513 Example(s) I. Where storm water from construction activ ities discharges into a stream segment that is known to harbor listed aquatic species. • The areas where storm water BMPs will be constructed and operated, including any areas where storm water flows to and from BMPs. Example(s) I. Where a storm water retention pond would be built. The project area will vary with the size and structure of the construction activity, the nature and quantity of the storm water discharges. the storm water discharge-related activities and the type of receiving water. Given the number of construction activities potentially covered by the CGP . no specific method to determine whether listed species may be located in the project area is required for coverage under the CGP . Instead, applicants should use the method which allows them to determine, to the best of their knowledge. whether listed species are located in their project area. These methods may in clude: • Conducting visual inspections: This method may be particularly suitable for construction sites that are smaller in size or located in non-natu ral settings such as highly urbanized areas or industrial parks where there is little or no nat ural habitat, or for construction activities that discharge directly into municipal storm water collection systems . • Contacting the nearest State or Tribal wildlife agency. the Fish and Wildlife Service (FWS). or the National Marine Fisheries Service (NMFS). Many endangered and threatened species are found in well- defined areas or habitats. Such information is frequently known to State, Tribal. or Federal wildlife agencies. A list of FWS and NMFS offices is provided in Section II of this Addendum below . • Contacting local/regional co n servat ion groups or the State or Tribal Natural Heritage Centers (see Section III of this Addendum). State and local conservation groups may have location specific listed species information. The Natural Heritage Centers inventory species and their locations and maintain lists of sightings and habitats. • Submitting a data request to a Natural Heritage Center. Many of these centers will provide site specific information on the presence of listed species in a project area. Some of these centers will charge a fee for researc hing data requests . • Cond u cting a forma l biological survey. Larger construction sites with extensive storm water discharges may choose to conduct biological surveys as the most effective way to assess whether species are located in the project area and whether there are likely adverse effec ts. Biological surv eys are freq uently performed by environmental consulting firms . A biological survey can be used to follow Steps Four through Six of these instructions. • Conducting an e nvi ronmental assessment under the National Environmental Policy Act (NEPA). Some construction activities may require en v ironmental assessments und er NEPA. Such assessments may indicate if listed species are in the project area . Coverage under the CGP does not trigger such an assessment because the permit does not regu late any dischargers subject to New Source Performance Standards under Section 306 of the Clean Water Act. and is thus statutorily exempted from NEPA. See CWA § 511 (c). However. some construction activities might require revi ew under NEPA because of Federal fund ing or other Federal involvement in the project. If no species are fou nd in the project area. an applicant is eligib le for CGP coverage . Applicants must provide th e necessary certification on the revised NOi form. If listed species are found in the project area. applicants must indicate the location and nature of this presence in the storm water pollution prevention plan and follow Step Four. Step Four: De termine if Listed Species or Critical Habitat Are Likely To Be Adversely Affected by the Constru ction Activity's Storm Water Discharges or Storm Water Discharge - Related Activities To receive CGP coverage . applicants must assess whether their storm water discharges or storm water discharge-related activities are likely to adversely affect listed species or critical habitat. "Storm water discharge- related activities " include: • Activities which cau se. contribute to , or result in point source storm water pollutant discharges, including but not limited to excavation, site development. grading. and other surface disturbance activities; and • Measures to control storm water discharges including the siting. construction , operation of best management practices (BMPs) to control. reduce or prevent s torm water pollution. Potential adverse effec ts from storm water discharges and storm water discharge-related activities include: • Hydrological . Storm water discharges may cause siltation. sedime ntation or induce other changes in receiving waters such as temperature, salinity o r pH . These effects will vary with the amount of storm water discharged and the volum e and condition of the receiving water. Where a storm water discharge constitutes a minute portion of the to tal volume of the receiving water, adverse hydrological effects are Jess likely. Construction activity itself may also alter drainage patterns on a site where construction occurs which can impact listed species or critical habitat . • Habitat. Excavation, site deve lopment, grading, and other surface disturbance activities from construction activities, including the installation or placement of storm water BMPs . may adversely affect listed species or their habitat. Storm water may drain or inundate li sted species h a bitat. • Toxicity. In some cases, pollutants in storm water may have toxic effects on listed species. The scope of effects to consider will vary with each site. If the applicant is having difficulty in determining whether his or h er proj ect is likely to adversely Affect a li sted species or critical habitat, then the a ppropriate office of the FWS . NMFS or Na tural Heritage Center listed in Sections II and Ill of this Addendum should be contacted for assistance. If ad ve rse effec ts are not likely. then the applicant should make the appropr iate certification on the revised NO i form and apply fo r coverage under the permit. If adverse effects are likely . app li cants must follow Step Five . Step Five: Determine if Measures Can Be Implemented To A void Any Adverse Effects If an applic ant makes a preliminary determination that adverse effects are likely. it can still receive coverage under Part l.B.3 .e.(2) (a) of the CGP if appropriate measures are undertaken to avoid or eliminate the likelihood of adverse effects prior to applying for permit coverage . These measures may involve relatively simple changes to construction activities such as re - routing a storm water discharge to bypass an area where species are located. relocating BMPs. or by changing the "footprint" of the construction activity. Applicants may wish to contact the FWS and/or NMFS to see what approp ri ate measures might be suitable to avo id or eliminate the likelihood of advers e impacts to listed species and/or critical habitat. (See 50 CFR 402.13(b).) This can entail the initiation of informal consultation with the FWS and/or NMFS which is described in more detail in Step Six . If applicants adopt measures to avoid or eli minate adverse effects, t hey must continu e to abide by those measu res during the course of permit coverage. These measures must be described in the storm water pollution prevention plan and may be enforceable as permit conditions. If appropriate measures to avoid the likelihood of adverse effects are n ot availab le to the applicant, the applicant must follow Step Six . Step Six: Determine ifthe Eligibility Requirements of Part I.B.3.e.(2)(b)-(d) Ca n Be Met Whe re adverse effects are likely. the app licant must contact the EPA and FWS/ NMFS. Applicants may still be eligible for CGP coverage if any likely adverse effects can be addressed through meeting the criteria of Part I.B.3.e .(2)(b)-(d) of the permit. These criteria are as follows: 1. An ESA Section 7 Consultation Is Performed for the Applicant's Activity (See Part I.B .3 .e .(2)(b) Formal or informal ESA § 7 consultation is performed with the FWS and/or NMFS which addresses the effects of the applicant's storm water discharges and storm water discharge-related activities on listed species and critical habitat. The formal consultation must result in either a "no jeopardy opinion " o r a "jeopardy opinion " that identifies reasonable and prudent alternatives to avoid jeopardy which are to be imp lemented by the applicant. The informal consultation must result in a written concurrence by the Service(s) on a finding that the applicant's storm water d ischarge(s) and storm water discharge-related activities are not likely to adversely affect listed species or critical habi tat (for informal consultation . see 50 CFR 402.13). 36514 Federal Register /Vol. 63 . No. 128/Monday. July 6 . 1998/Notices Most consul tat io ns are accomplished through informal consultation. By the terms of this permit, EPA has automatically designated app licants as non-Federal representatives for the purpose of conducting informal co nsultations . S ee Part I.B .3.e.(5) and 50 CFR 402.08 and 402.13. When conducting informal ESA § 7 consultation as a non-Federal represe ntative. applicants must follow the procedures found in 50 CFR 402 of the ESA regulations. Applicants must also notify EPA and the Services of their intention and agreement to conduct consultation as a non-Federal representative . Consultation may occur in the context of another Federal action at the construction site (e.g .. where ESA § 7 consultation was performed for issuance of a wetlands dredge and fill permit for the project or where a NEPA review is performed for the project which incorporates a section 7 consultation). Any terms and conditions developed through consultations to protect listed species and critical habitat must be incorporated into the SWPPP . As noted above, applicants may . if they wish. initiate consultation with th e Services at Step Five. Whether ESA § 7 co nsultation must be performed with either the FWS, NMFS or both Services depends on the listed species which may be affected by the applicant's activity. In general, NMFS has jurisdiction over marine , estuarine. and anadrornous species. Applicants should also be aware that while formal § 7 co ns ultation provides protection from incidental takings liability, informal consultation does not. 2. An Incidental Taking Permit Under Section 10 of the ESA Is Issued for the Applicants Activity (See Part I.B .3.e.(2)(c)) The applicant's construction activities are authorized through the issuance of a permit under § 10 of the ESA and that autho rization addresses the effects of the applicant's storm water discharge(s) and storm water discharge-related activities on listed species and critical habitat. Applicants must follow FWS and/or NMFS procedures when applying for an ESA Section IO permit (see 50 CFR § l 7.22(b)(l) (FWS) and§ 222 .22 (NMFS)). Application instructions for Section 10 permits for NMFS species can be obtained by (1) accessing the "Office of Protected Resources" sector of the NMFS Horne Page at "http://www.nrnfs.gov" or by contacting the National Marine Fisheries Service , Office of Protected Resources . Endangered Species Division , F/PR3, 131 5 East-West Highway. Silver Spring. Maryland 20910 ; telephone (301) 713-1401, fax (301) 713-0376 . 3. The Applicant Is Covered Under the Eligibility Certification of Another Operator for the Project Area (See Part I.B .3.e.(2)(d)) The applicant's storm water discharges and storm water discharge-related activities were already addressed in another operator's certification of eligibility under Part I.B.3.e .(2)(b), or (c) w hich also included the applicant's project area . By certifying eligibility under Part I.B .3.e.(2)(d), the applicant agrees to comply with any measures or controls upon which the other operator's certification under Part I.B .3 .e.(2)(a), (b) or (c) was based. Cert ification und er Part I.B .3.e .(2)(d) is discussed in more detail in Section I.A. of this addendum. The applicant must comply with any terms and co nditions imposed under the e ligibi lity requ ir e ments of paragraphs l.B .3.e(2)(a). (b). (c). (d) to ensure that its storm water discharges and storm water discharge-related activities are protective of listed s pecies and/ or critical habitat. Such terms and conditions must be incorporated in the project's SWPPP . If the eligib ility requirements of Part I.B .3.e.(2) (a)-(d) cannot be met. then the applicant may not receive coverage under the CGP. Applicants should then consider applying to EPA for an individual permit. II . List of Fish and Wildlife Service and National Marine Fisheries Service Offices A. U.S. Fish and Wildlife Service Offices National Website for Endangered Species Information Endangered Species Home page: http :// www.fws.gov/r9endspp/endspp.htrnl Regional, State, Field and Project Offices USFWS Region Two Regional Office Division Chief, Endangered Species. U.S . Fish and Wildlife Service , ARD Ecological Services, P.O . Box 1306. Albuquerque, NM 87103 State , Field , and Project Offices (Region Two) Fie ld Supervisor. U.S. Fish and Wildlife Service. Corpus Christi Field Office, 6300 Ocean Dr .. Campus Box 338 , Corpus Christi. TX 78412 Fi eld Supervisor, U.S . Fish and Wildlife Service, Arlington Field Office. 711 Stadium Dr .. East, Suite 252 . Arlington, TX 76011 Field Supervisor. U.S . Fish and Wildlife Service, Clear Lake Field O!Tice, 17629 El Camino Real . Suite 211 . Houston, TX 77058 Field Supervisor, U.S . Fish and Wildlife Service. Oklahoma Field Office. 222 S . Houston, Suite a, Tulsa, OK 7 4127 Field Supervisor, U.S . Fish and Wildlife Service . New Mexico Field Office , 2105 Osuna. NE. Albuquerque. NM 87113 Field Supervisor, U.S . Fish and Wildlife Service, Austin Ecological Serv. Field Office, 10711 Burnet Road, Suite 200, Austin, TX 78758 Field Supervisor, U.S . Fish and Wildlife Service, Arizona State Office, 2321 W. Royal Palm Road. Suite 103, Phoenix, AZ 85021-4951 USFWS Region Four Regi onal Office Di vision Chief, Endangered Species, U.S . Fish and Wildlife Service . ARD- Ecologica l Services, 1875 Century Blvd ., Suite 200, Atlanta. GA 30345 Sta te, Field. and Project Offices (Region Four) Field Supervisor. U .S . Fish and Wildlife Service. Panama City Field Office , 1612 June Avenue , Panama City, FL 32405-3721 Field Supervisor, U .S. Fish and Wildlife Service, South Florida Ecosystem Field Office. 1360 U.S. Hwy l , #5; P.O . Box 2676 , Vero Beach . FL 32961-2676 Field Superv isor, U.S. Fish and Wildlife Service. Caribbean Field Office . P.O. Box 49 1. Boqueron. PR 00622 Field Supervis or. U.S. Fish and Wildlife Serv ice, Puerto Rican Parrot Field Office , P.O. Box 1600 . Rio Grande, PR 00745 Fi e ld Supervisor, U.S. Fish and Wildlife Service , Brunswick Field Office, 4270 Norwich Street, Brunswick, GA 31520- 2523 Field Supervisor . U.S . Fish and Wildlife Service, Jacksonville Field Office . 6620 Southpoint Drive S ., Suite 310 , Jacksonville , FL 32216-0912 Field Supervisor. U.S. Fish and Wildlife Service. Charleston Field Office , 217 Ft. Johnson Road , P .O . Box 125 59 , Charleston , SC 29422-2559 Field Supervisor. U.S . Fish and Wildlife Service . Clemson F.O .. Dept. of Forest Resources, 261 Lehotsky Hall. Box 341003 , Clemson, SC 29634-1003 Field Supervisor. U.S . Fish and Wildlife Service. Raleigh Field Offi ce . P.O . Box 33726. Raleigh, NC 27636-3726 Field Supervisor. U.S. Fish and Wildlife Service, Cookeville Field Office, 446 Neal Street, Cookeville, TN 38501 Field Supervisor, U.S . Fish and Wildlife Service, Asheville Field Office , 160 Zillicoa Street, Asheville, NC 28801 Field Supervisor. U.S . Fish and Wildlife Service, Daphne Field Office . P .O . Drawer 1190, Daphne, AL 36526 Field Supervisor, U.S . Fish and Wildlife Service, Vicksburg Field Office, 2524 S . Frontage Road , Suite B. Vicksburg, MS 39180-5269 Field Supervisor. U.S . Fish and Wildlife Svc .. Lafayette Field Office, Brandywine II, Suite 102. 82 5 Kaliste Saloom Road, Lafayette, LA 70508 Field Supervisor. U.S. Fish and Wildlife Service, Jackson Field Office, 6578 Dogwood View Pkwy Suite A, Jackson, MS 39213 B. National Marine Fisheries Service Offices The National Marine Fisheries Service is developing a database to provide county and territorial water (up to three miles offshore) information on the presence of endangered and threatened species and critical habitat. The database is projected to be available to the public sometime in December 1997 . The database should be found at the "Office of Protected Resources " site on the NMFS Homepage at "http://www .nrnfs .gov". Regional and Field Office Southeast Region Protective Species Management Branch , National Marine Fisheries Service . Southeast Region , 9721 Executive Center Drive. St. Petersburg , Florida 33702-2432 III. Natural Heritage Centers The Natural Heritage Network comprises 85 biodiversity data centers throughout the Western Hemisphere. These centers collect, organize. and share data relating to endange red and threatened species and habitat. The network was developed to inform land-use decisions for developers, Federal Register /Vol. 63, No. 128/Monday, July 6, 1998 /Notices 36515 corporations . conservationists, and government agencies and is also co ns ulted for research and educational purposes. The centers maintain a Natural Heritage Network Contro l Server Webs ite (http:// www .h eritage.tnc .org) which provides webs ite and other access to a la rg e number of s pec ific bi odive rsity centers. Some of these centers are li sted below: Oklahoma Natural Heritage Inventory Oklahoma Biological Survey. 111 Ea st Ch esa p eake Street, University of Oklahoma . orman , OK 73019-0575. 405 / 325-1985 Fax : 405/325-7702 , Web site : http://obssun02.uoknor.edu/biosurvey/ onhi/home.html Louisiana Natural Heritage Program Department of Wildlife & Fisheries , P.O . Box 98000, Baton Rouge, LA 70898 -9000 , 504/ 765-2821 Fax : 504/765-2607 Navajo Natural Heritage Program P.O. Box 1480 , Window Rock , Navajo Nation, AZ 86515 , {520) 871-7603 , (520) 871-7069 (FAX) Texas Biological and Conservation Data System 3000 South IH -35, Suite 100, Austin, TX 78704, 512/912-7011Fax:512 /912 -7058 IV. County List of Endangered and Threatened Species Please see February 17 . 1998. Federal Register Vol. 63 no . 31 for county by county li sting or contact EPA Reg ion 6 Storm Water Hotline (1-800-245-6510). EPA 's Office of Wa stewater Management's web page at "http ://www.e pa .gov /owm" will post p eriodic updates of the county-by-cou nty list. You may also check the list of endangered and threatened species published by the Fi sh and Wildlife Service on the Endangered Species Home Page (htt p ://www.fws.gov/ -r9endspp/enddspp.htm) w hi ch is also attached to the FWS Home Page in the "Nationwide Activities Category". List of species under NMFS jurisdiction can be found on the NMFS Homepage (http:www.nmfs .gov) under th e "Protected Resources Program." Li sts and maps of critical habitat can be found in th e Code of Federal Reg ulat ions (C FRs) at 50 CFR parts 17 and 226 . Addendum B-Historic Properties (Reserved) Instructions related to hi storic preservation have not been included in the permit at this time . EPA may modify the permit to include such provisions at a later date . This does not re li eve applicants or permittees of their respo nsibility to comply with applicable State . Tribal or local laws for the protection of historic properties. Addendum C-Revised Notice of Intent Form The Notice of Intent fo rm (EPA35 l 0-9) rep laces the Notice of Intent form (EPA 3510-6 (8-98)). The revised form is contained in this Addendum. Ac cord ing to the provisions in Part Il .B. l of this permit. applicants are reminded they must certify that they meet all eligibility requirements of Part LB. of this permit and are informing the Director of their intent to be covered by, and comply with , those terms and condit ions. These conditions include certifications that the ap plicant's storm water discharges and storm water.-related discharge activities will not adve rsely affect listed endangered or threaten ed species, or their critical habitat. EPA may modify this permit to include provisions relating to historic preservation . BILLING COOE 656G-50-P 36516 Federal Register /Vol. 6 3. No . 128 /Mo nd ay . Ju ly 6. 1998 /Notices THIS FORM REPLACES PREVIOUS FORM 3510-6 (8-98) See Reverse for Instructions Form Approved . OMB No. 2040-0188 &EPA United States Environmental Protection Agency NP DES Washington, DC 20460 FORM Notice of Intent (NOi) for Storm Water Discharges Associated with CONSTRUCTION ACTIVITY Under a NPDES General Permit Submission of this Notice of Intent constitutes notice ltlat ttie party identified in Section I of this form intends to be authorized by a NPDES permit issued for storm water discharges associated with construction activity in the State/Indian Country Land identified in Section II of this form . Submission of this Notice of Intent also constiMes notice that the party identified in Section I of this form meets the eligibility requirements in Part l.B. of the general permit (including those related to protection of endangered species determined through the procedures in Addendum A of the general permit), understands that continued authorization to discharge is contingent on maintaining permit eligibility, and that implementation of the Storm Water Pollution Prevention Plan required under Part IV of the ge neral permit will begin at the time the permittee commences work on the construction project identified in Secion II below. IN ORDER TO OBTAIN AUTHOR IZATION , ALL INFORMATION REQUESTED MUST BE INCLUDED ON THIS FORM. SEE INSTRUCTIONS ON BACK OF FORM. I. owner/Operator (Applicant) Information Name: I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I Phone: I I I I I I I I I I I Status of D Address : I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I Owner/Operator: City : I I I I I I I I I I I I I I I I I I I I I I I State: LLJ Zip Code: I I I I I 1-1 I I I I II. Pro)ectJSlte Information Is the facility located on Indian Country Lands? Project Name: I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I Yes O NoO Project Address/Location: I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I City: I I I I I I I I I I I I I I I I I I I I I I I I State : LLJ Zip Code: I I I I I 1-1 I I I I Latitude : I I I I I I I Longitude: I I I I I I I I County: I I I I I I I I I I I I I I I I I I I I Has the Storm Water Pollution Prevention Pian (SWPPP) been prepared? YesO NoO Optional: Address of location of 0 Address in Section I above 0 Address in Section JI above 0 Other address (ii known) below: SWPPP for viewing SWPPP Phone : Address : I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I City: I I I I I I I I I I I I I I I I I I I I I I I State : LLJ Zip cooe: I I I I I 1-1 I I I I Name of Receiving Water: I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I Based on instruction provided in Addendum A of the permit, are Month Day Year Month Day Year there any listed endangered or threatened species, or designated Estimated Construction Start Date Estimated Completion Date critical habitat In the project area? Estimate of area to be disturbed (to nearest acre): I I I I I I I Yes 0 NoO Estimate of Likelihood of Discharge (choose only one): I have satisfied permit eligibility with regard to protection of 1. 0 Unlikely 3. 0 Once per week 5. 0 Continual endangered species through the irdcated section of Part l.B.3 .e.(2) of the permit (check one or more boxes): 2. 0 Once per month 4 . 0 Once per day (aJO (blO (cJO (d)o Ill. Certification I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons wllo manage this system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. Print Name : I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I Date : I I I I I I I Signature : EPA Form 3510-9 rep laced 3510-6 (8-98) Federal Register /Vol. 63 , No. 12 8 /Mo n day , July 6 . 1998/Notices 36517 Instructions -EPA Form 3510·9 Form Approved. OMB No. 2040-0188 &EPA Notice of Intent (NOi) for Storm Water Discharges Associated with Construction Activity to be Covered Under a NPDES Permit Who Must File a Notice of Intent Form Under the provisions of the Clean Water Act, as amended, (33 U .S .C . 1251 et.seq.; the Act), except as provided by Part 1.8 .3 the permit, Federal law prohibits discharges of pollutants in storm water from construction activities without a National Pollutant Discharge Elimination System Permit. Operator( s) of construction sites where 5 or more acres are disturbed, smaller sites that are part of a larger common plan of development or sale where there is a cumulative disturbance of at least 5 acres, or any site designated by the Director, must submit an NOi to obtain coverage under an NPDES Storm Water Construction General Permit. If you have questions about whether you need a permit under the NPDES Storm Water program, or if you need information as to whether a particular program is administered by EPA or a State agency, write to or telephone the Notice of Intent Processing Center at (703) 931-3230. Where to File NOi Form NOls must be sent to the following address: Storm Water Notice of Intent (4203) USEPA 401 M . Street, SW Washington, D.C . 20460 Do not send Storm Water Pollution Prevention Plans (SWPPPs) to the above address. For overnight/express delivery of NOls, please include the room number 2104 Northeast Mall and phone number (202) 260-9541 In the address. When to File This form must be filed at least 48 hours before construction begins. Completing the Form OBTAIN AND READ A COPY OF THE APPROPRIATE EPA STORM WATER CONSTRUCTION GENERAL PERMIT FOR YOUR AREA. To complete this form, type or print, using uppercase letters. in the appropriate areas only. Please place each character between the marks (abbreviate if necessary to stay within the number of characters allowed for each item). Use one space for breaks between words, but not for punctuation marks unless they are needed to clarify your response . If you have any questions on this form, call the Notice of Intent Processing Center at (703) 931-3230. Section I. Facility Owner/Operator (Applicant) Information Provide the legal name, mailing address, and telephone number of the person, firm, public organization, or any other entity that meet either of the following two criteria: (1) they have operational control over construction plans and specifications, including the ability to make modifications to those plans and specifications ; or (2) they have the day-to-<lay operational control of those activities at the project necessary to enstXe compliance with SWPPP requirements or other permit conditions. Each person that meets either of these criteria must file this form . Do not use a colloquial name. Correspon- dence for the permit will be sent to this address. Enter the appropriate letter to indicate the legal status of the owner/operator of the project: F = Federal; S = State; M " Public (other than federal or state); P =Private. Section II. Project/Site Information Enter the official or legal name and complete street address, including city, county, state, zip code, and phone number of the project or site. If it lacks a street address, indicate with a general statement the location of the site (e .g., Intersection of State Highways 61 and 34). Complete site Information must be provided for permit coverage to be granted. The applicant must also provide the latitude and longitude of the facility in degrees, minutes, and seconds to the nearest 15 seconds. The latitude and longitude of your facility can be located on USGS quadrangle maps. Quadrangle maps can be obtained by calling 1-800 USA MAPS. Longitude and latitude may also be obtained at the Census Bureau Internet site : http://www.census.gov/cgi-bin/gazetteer. Latitude and longitude for a facility In decimal form must be converted to degrees, minutes and seconds for proper entry on the NOi form. To convert decimal latitude or longitude to degrees, minutes, and seconds, follow the steps in the following example. Convert decimal latitude 45.1234567 to degrees, minutes, and seconds. 1) The numbers to the left of the decimal point are degrees. 2) To obtain minutes, multiply the first four numbers to the right of the decimal point by 0 .006. 1234 x .006 = 7.404. 3) The numbers to the left of the decimal point in the result obtained in step 2 are the minutes : 7'. 4) To obtain seconds, multiply the rema ining three numbers to the right of the decimal from the result in step 2 by 0 .06: 404 x 0 .06 = 24.24. Since the numbers to the right of the decimal point are not used , the result is 24". 5) The conversion for 45.1234 = 45 ° T 24". Indicate whether the project is on Indian Country Lands. Indicate if the Storm Water Pollution Prevention Plan (SWPPP) has been developed. Refer to Part IV of the general permit for information on SWPPPs. To be eligible for coverage, a SWPPP must have been prepared. Optional: Provide the address and phone number where the SWPPP can be viewed if different from addresses previously given. Check appropriate box. Enter the name of the closest water body which receives the projecrs construction storm water discharge . Enter the estimated construction start and completion dates using four digits for the year (I.e. 05127/1998). Enter the estimated area to be disturbed Including but not limited to: grubbing, excavation, grading , and utilities and infrastructure installation. Indicate to the nearest acre; if less than 1 acre, enter "1.' Note: 1 acre = 43 ,560 sq . It . Indicate your best estimate of the likel ih ood of sto rm water discharges from the project. EPA recognizes that actual d ischarges may differ from this estimate due to unforeseen or chance circumstances. Indicate if there are any listed endangered or threatened speci es , or designated critical habitat in the project area. Indicate which Part of the permit that the applicant is eligible with regard to protection of endangered or threatened species, or designated critical habitat. Section Ill. Certification Federal StaMes provide for severe penalties for submitting false information on this application form. Federal regulations require this application to be signed as follows: For a corporation: by a responsible corporate offi cer, which means: (i) president, secretary, treasurer, or vice president of the corporation in charge of a principal business function , or any other person who performs similar policy or decision making functions , or (ii) the manager of one or lllOfe manufacturing, production, or operating facilities employing more than 250 persons or having gross annual sales or expenditures exceeding $25 million (in second-quarter 1980 dollars), If authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures; For a partnership or sole proprietorship: by a general partner of the proprietor, or For a municipality, state, federal , or other public facility: by either a principal executive or ranking elected official. An unsigned or undated NOi form will not be granted permit coverage. Paperwork Reduction Act Notice Public reporting burden for th is application is estimated to average 3 .7 hours. This estimate includes time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB control number. Send comments regarding the burden estimate, any other aspect of the collection of information, or suggestions for improving this form, including any suggestions which may increase or reduce th is burden to : Director, OPPE Regulatory Information Division (2137), U.S. Environmental Protection Agency, 401 M Street, SW, Washington, D.C. 20460 . Include the OMB control number on any correspondence. Do not send the completed form to this address. 36518 Federal Regist er/Vol. 63, No . 128 /Monday. July 6, 1998/Notices Addendum D-Notice of Termination Form From the effective date of th is permit , permittees are to use the existing No tice of Termination form (EPA Form 3510-7) contained in this Addendum un til they are in structed by the Dir ecto r (EPA) to use a rev ised vers ion. Permittees are to complete, sign and submit t he form in accordance with Part VIII of the permit when terminating permit coverage at a construction project when one or more or the conditions contained in Part I.D .2 have been met. I THIS FORM REPLACES PREVIOUS FORM 3510-7 (t-92) Foon Approved. ~--Pl.-. ... INltructlons Before ---Thia Fonn .....-....... w, ... I &EPA Unllld sa.. EIWlrol ,,_1tml Prolilcllan ~ I NPDl!S Wut*lglDn. DC 204eO ! f'ORM Notice of T.-mlNdlon ~of Covwage Under• NPDES General Permit for Stonn wu.r D SIU .Auoc:1819d with lnduatrt.J Activity I SID'nlalon of this Notice of Teminallon const1Mee nob flat fie ~ ld8nttled In Sedlan II of !Ne bm la ~ aulhorlDd to dled1arge 1totm Wiiier ~with lndullriel llCIMly under tlw NPOES progrwn. AU. NE ESSARY INFORMATION MUST BE OED ON THIS FORM. I I. P9rint lnbmallon I NPDES StDrm WetM I I Chectt..,. If You -No Longer D Oieclt Here If the Sbm Wat.er D I Gslenll Pemt Number: I I I I I I I I tie OperalQr of fie Fldlty: Clac:hllrge la Wig Temhled: II. Faclty Operlltof lnfonnallon Nlme: I ' ' I Phone: I I I I I I I I I I I AddrMS: ,_.l_J _ _L_.J.__j_J.-L..J I I I !.__1_] w ZIP Cod9: L -I City: I ' I I I I I I I i I I I I I I I I I Sla18: I I I I I I I I I Ill. FaclltylSUe L.ocallon lnfonn811on Name: I I Addr8ss: I I I I I I State: L._J ZIPCode: I -I City: I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I t.allude: I I I I I I I Longitude: I I I I I I I I aunr. WSdon: W TCWlllNp: I I I I I Rsiga: I I I I I IV. Cer111cat1on: I -Ufy under ~law that ell storm 'Nat« dlech~ ueoclaled with lndultrlal llCIMly from the ldenlfted t.cillty thel are authorized% a NPOES cal pennlt been ellmlnated or that I am no tha operalof of Iha lac!Rty °' oonstruc:llon site. I understand that by ~ Notice al ennlna1lon, I am no longer authori:red to <lechar{l9 a10rm water usodated wifl lndultrlal aciYlly under this gen.al permit, mld lhel dilcllaiglng polulllnts In atorm watw aeeoclliled with induClrlal ecllYity to wm.... of Iha United S1afN Is lallaw!W under Iha CIMi'I WaflK Act -n.. lhe dl9charge 11 not authorized by a NPDES =l I also oodlllStlnd lhll lhe subnitlal of ttil Nata of T errrinalion does not ,.._ an operatlr from llabllty tar any vtolat.lons ol lhl1 permit°' the Water Act. Print Name: I I I I I I I I I I L..l._L_.L..J_......1--1--L.-L....l..-L-1.......L I I I Date: L-'--1 Slgnalure: ln9lrucllona for Compi.tlng Notice of Termlnetlon (HOT) Form Who 1111ir Fiie • NallC8 of TwmlNdon (NOl} "-WllNe ID .... NOT Fomt P"""'-w11o .,. pl..-.dy CO'IWMI wider 111 EPMaued Nallotwl Pollutant Send thla lonn ID the the~--.: D18cNrge EJrrin!llfon Sy11om (NPOES) Gerwm Penni (lncbllng !he 1995 Mulll&ctDr ....... ) far Slorm w-Olchlll'Jll Aaoclaled ..,, lndullllal fdflt:y SIOnn Watlf Nolice al T""'*1ation (~ "*I Nlnil a -al Termln&llon (NOT) lonn when !heir f1ICilCIM no longer «II M SlnMI, S.W. ..... .,.,, llDml -cl8ch8lgel anodaled .... lnduMlal llciMly u cMftned In Wuhlnglon. DC 20460 IM llllrm -~ • «> CFR 122.29(b)(I~). Cl when tllly.,. no longer IM~alNlacillliea. Coinpltllng ... Fonn f« COlllllllClon 9CllYftie8, .....,.'°" al .. llDml -clld""1j8S ....a.led wllfl lncblri8I dYlly OQOUla "'*' dalulbed eolla It tM CGnllnlction lit• have Type°' print, uoing upper.-lttla<t, In IN~ -oNf. PIMl8 -llnally .W.Hd and ~ ........ and Mlirnent cantrol ,,__ ~ -~~ themalb. AblnWileW-ryloelly .... ..... tie... NMOWd.,, .. be rwtnCMd al Ill~-.()( .............. the .....-a1-alowed for..,,_ lt8ln. UM oNf 0118 91*9 lor btMlca ..., dl8chalgls auoCitll9d wllh ~ adilrily ,_, the ccnsllUClan ... 11111! ~ wonll. tu not for~ martca WllMe tllly.,.. needed lo clMly are l!Ulllollzed bv a NPOES general pe<mlt have Ollll<'Mu tie... ..........S. Fln8I 'JO'lf-•you have.,.,,~ about lhil '°""' ~ «Wiii ... llabmzatlon ,_,. M al ~ actiWle8 11 IN • "8Ye bHn NOllce al I-Pnauing C-al (703) llCll-3230. ~ and 1N1 a unllorm pe<WfWlilil wgootallw OOV8< wilh a denoily of 70% of ... _ lor~ -•and -not ....-11v pemw>enl-hM -eslMJlshed. or ~ pennanen1 ll8bllmllon .,....,.. (IUCll u the -"' ~gllt>icra.O<~)NwbHn ~ EPA Fonn 3510-7 l&-98) Federal Register /Vol. 63 , No . 128 /Mond ay, July 6, 1998 /Notices 36519 Instructions· EPA Form 3510-7 Notice of Termln•tlon (NOT) of Cover•ge Under The NPOES Gener•I Permit for Storm W•ter Olsch•rges Associated With lndustrl•I ActMty Section I Permit Information Enter the existing NPOES Storm Water General Perml number assigned to the raclllty or sile identified in Section Ill. Ir you do not know the perm~ number, telephone or write your EPA Regional storm water contact person. Indicate your reason ror submitting this Notice of Termination by checking the appropriate box : lrlhere has been a change of operator and you are no longer the operator of the facility or sile identified in Section Ill, check the corresponding box . Ir al slonn water discharges at the faciity or site identified in Section Ill have been terminated, check the corresponding box . Section II Faclllty Operator Information Give the legal name of the person , firm, pubic organization, or any other entity that opermes the faciily or site described in this application. The name of the operator mayor may not be the same name as the facility. The operator of the facility is the legal entity which controls the facility's operation, rather than the plant or s~e manager. Do not use a coloquial name . Enter the co~lete address and telephone number of the operator. Section Ill FacllltylSlte Location Information Enter the racilly's or site's offlcial or legal name and co~lete address, including city, stale and ZIP code . If the raciity lacks a street address, indicate the stale, the latitude and longitude of the facility to the nearest 15 seconds, or the quarter, section, township, and range (lo the nearest quarter section) of the approximate center or the site . [FR Doc . 98-17521 Filed 7-2-98 ; 8 :45 am] BILLING CODE 656<>-SO-C Section N Certification Federal slalt.Ces provide for severe penahies for submitting raise information on this application form . Federal regulations require lhls application to be signed as rollO'NS : For 11 rorporalion: by a responsible corporate officer, which means: Q) president, secretary, treasurer, or vice-president of the corporation in charge of a principal business runction, or any other person who performs sim~ar policy or decision making runctions, or(•) the manager of one or more manufacturing, production, or ope<ating racities employing more than 250 persons or having gross annual sales or expendll.l"llS exceeding $25 m~lion (in second-quarter 1980 dollars), l authority lo sign documenls has been assigned or delegated lo the manager in accordance with corporate procedures; For a partner.ihlp or sole proprietorship: by a general partner or the proprietor; or For a municipality, State, Federal, or other pub/Jc fac/lty: by either a principal executive officer or ranking elected otficial. P•perwork Reduction Act Notice Public reporting burden for this application is estimated to average 0 .5 hours per application, including time for reviewing Instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection cl Information . Send comments regarding the burden estimate, an other aspect olthe collection or information, or suggestions for i~roving this form, including any suggestions which may increase or reduce this burden to : Chief, lnformetion Poley Branch, 2136, U .S . Environmental Protection Agency, 401 M Street, SW, Washington, DC 20460, or Director, Off'IC8 ol Information and Regulatory Affairs, Off'oce or Management and Budget, Washington, DC 20503 . " DRAINAGE REPORT KROGER SW 361 CLR Job No: 98-057-00 SH 6 AND ROCK PRAIRIE COLLEGE STATION, TEXAS JULY, 1999 \\CAD_S ERVER\WORK\WORK\98-057-00\DRAINAGE REPT.DOC NARRATIVE APPENDIX TABLE OF CONTENTS INTRODUCTION EXISTING CONDITIONS PROPOSED CONDITIONS LOCATION MAP CALCULATIONS DRAINAGE CALCULATIONS DRAINAGE AREA MAP [TxDOT F471 (32)] \\CAD_ SERVER\WORK\WORK\98-057 -00\DRAINAGE REPT.DOC NARRATIVE INTRODUCTION The project site is a rectangular shaped tract of approximately 12.466 acres located in College Station, Texas, lying west of the intersection of State Highway 6 and Rock Prairie and described as Lot 1, Block Two of L.O . Ball Memorial Subdivision Phase II. The project includes construction of underground utilities, parking facilities, and a grocery store . A storm water management system will be constructed to manage runoff from the proposed facility and area draining through or across the project site. In addition to the parking and storm water management facilities, landscaping will be added in accordance with local requirements to mitigate any adverse affects produced by the development and enhance the aesthetic appeal of the area. EXISTING CONDITIONS The site is currently vacant. The site is bordered to the north by Rock Prairie Road, to the west by Longmire Drive (Proposed), the east by State Highway 6 and the south by Birmingham Street. The entire site is clear and covered wild grasses. The soil type is described as firm clayey/silty sand and sandy silt from 0-2 feet below grade by the Geotechnical Investigation prepared by Kenneth E. Tand & Associates, Inc. The property is included in the drainage design for State Highway No. 6 as part of Drainage Area No . 1-A and 1-D. The Drainage Area Map for TxDOT Project No F4 71 (32) indicates that the existing drainage system was designed to accommodate a discharge rate of 83 cfs from Drainage Area No. 1-D (see Appendix). The site currently drains to the southwest towards Birmingham and SH 6. The site currently drains via sheet flow to the Birmingham Street and across the S.H. 6 frontage road into the existing drainage ditch . The TxDOT drainage system eventually discharges to Lick Creek. PROPOSED CONDITIONS The project includes construction of a stormwater management system to manage storm water runoff from the proposed facility. The site will be graded to direct the runoff generated by the proposed development to an internal site drainage system connected to on site detention ponds. The proposed on-site drainage system will improve the existing conditions by providing on site detention, limiting the discharge rate and providing a dedicated conveyance system to route the flow under the frontage road. The on site drainage system is designed to provide a detention storage volume of 1. 7 4 \\CAD_SERVER\WORK\WORK\98-057-00\DRAINAGE REPT.DOC acre-feet and a discharge rate of 29.08 c.f.s. The proposed discharge rate (29.08 c.f.s.) is less than half of the allowable discharge rate (83 c.f.s.) for this site. During construction, measures will be taken to control erosion and sedimentation in accordance with the requirements of the current NPDES permit. The Stormwater Pollution Prevention Plan and Best Management Practices report include detailed instructions to the contractor in this regard . \\CAD_ SERVER\WORK\WORK\98-057 -00\DRAINAGE REPT .DOC APPENDIX \\CAD_SERVER\WORK\WORK\98-057-00\DRAINAGE REPT.DOC 'f I I ' i ~ I Kroger SW 361 College Station, TX . -. i Mag 14.00 'Wed Jun 0917:50 1999 I . Scale 1 :31.250 (at center) 2000 Feet 1000 Meters l:: " . _,.. • •<:"l ---.-.--•;\ -· ' --": '; ~ I .,. --Secondary SR, Road , Hwy Ramp -Major Connector -State Route -- -Utility -: -, Railroad Population Center CALCULATIONS The weighted runoff coefficient "c" for the overall project is calculated at 0 .82 . Runoff Coefficient "c"" Area 10.78 ac impervious site 1.68 ac pervious 12.46 ac total \\CAD_ SERVER\WOR K\WORK\98-057-00\DRAINAGE REPT.DOC 0 .9 0 .3 t ' JU L-07 -1999 WE D 09:13 AM SA FE INC. FAX NO. 409 690 6741 P. 01/03 .. TO TELEFAX TR..~\IS .\-UTI AL STAlVDARD AUTOL\1ATIC FIRE E1VTERPRJSES, I1VC. NAl\1E COMPANY P.O . BOX 10408 COLLEGE STATI01VJ TEXAS 77842-0408 PH01VE: 409-690-0301 PHONE NUMBER F~'{ NU~IBER J 3-4{g ~-~73 . tK0Ivi NAlv1E STEVEN R. RIANS COMPA.i'N STAJ.'IDARD AUTOMATIC FIRE ENTERPRISES FAX NUMBER 690-6741 CO l'v11\1ENf S L Hard Cov to Follo\v? DYes or DNo ~---------' ------------------' JUL-07-1999 WED 09 :14 AN SAFE INC. FAX NO. 409 690 6741 P. 02/03 STANDARD AUTOMATIC F_1R_E_· #_N_TEJ_U1_'ll_I~E_S_~_1:ftl_C_. _ ------··--··--________ _§_~FE, ~ti~ Fire Sprinkler Systern •. ,-SpC'cicili.'ilS July 7, 1999 CLR 13100 Northwest Freeway Suite 500 Houston, Texas 77040 Attn : Curtis Burt)ett Ref: Kroger College Station, Texas Kroger Store • Type IV Construction • Class M occupancy • Fully Sprinklered • 63,373.00 square feet. single story/mezzanine 'l'exas License No . SCR-0322 • Coefficient related to .type of construction, (.8) for non·combustible constmction • Exposure protection value 55% of flow . • Fire flow to be 2, 720 GPM total water required for a totally involved structure. Minimum of20 PSI pressure. Retail Buildin1 "A" • Type IV Construction • Class M occupancy • Fully Sprinklered • 23 ,457 square feet single story • Coefficicm related to type of construction (.8) for non-combustible construction. • Exposure protection value 6QO/o of flow • Fire flow to be 1,800 GPM total water required for a totally involved structure. Minimum of 20 PSI pressure . Combined Kroger and Retail Building "A" • • • • • Type IV Construction Class M occ.upancy Fully Sprinklered 86,830 square feet combined . Coefficient related to type of construction (.8) for non·combustible construction . P.0 . Bo:r: 10108 • Co/lrgaStaJion, Texas 77812-0408 • (109) 690-0301 •Fax ('109) 690-6i11 P.O. Bo."( 810705 • Houston, 1'exas 77284-0705 • (2 81) 855-2354 • fa."( (281) 855-2546 i'.O. Box 310931 •New Braun/el\, 1'exas • 78131·0934 • (830) 606-4323 •Pax (830) 606-4328 JUL-07-1999 WED 09: 14 AM SAFE INC. FAX NO. 409 690 6741 • Exposure protection value 45% of flow • Fire flow to be 3,082 GPM total water required for a totally involved structure. Minimum of 20 PSI pressure. Notes: • Per City Fire MaTShal, the individual unit calculations can be used in lieu of the combined calculation, although the combined results are more prudent. • The smaller pads for Retail Building "B" and future pads C, D, and E will have smaller water demands, therefore calculations are not necessary . Should you have any questions or require and further assistance, please do not hesitate to call. President SAFE, Inc . SRR:cih cc : file Jon Meis -College Station Fire Marshal P. 03103 Drainage Reports(cont.) Appendices a Rcfcrcnc:cs (all criteria and technical information used) 0 Hydrologic computations 0 Land USC assumptions for adjacent property 0 Minor/major storm runoff at specific points O Historic/fully developed runoff specific points 0 Hydrographs at aitical points 0 Hydraulic computations R.cvicwDatc:.~~~~~~~~~- Rcvicwcr: £ A~ 0 Culvert capacities (headwater and tailwatcr assumptions) O Storm sewer capacities 0 StrCC( capacities O Storm iD1ct capacities (mlct oontrol rating) 0 Open channel design 0 Detention area I volume capacity I outlet capacity Attached Drawings 0 Location map with drainage patterns 0 Floodplain map if any 0 Drainage plan_ with topo (existing and proposed with arrows if needed) 0 Details of outlet structu.res Project Name: R.cviewcr:--=E._ . .;:;,,...A_~..x:;· ~-- Drainage Reports Location i! Primary drainage system identified 0 Surrounding developments shown 0 Local streets. drainage systcms shown Description fa: Acreage of project '}!; Land cover described 'JI, Primary/sccoudaly systems within property shown 'J' General description · " Drainage Ba!ins 0 Rdcrcnccs to FIRMs if applicable 0 Sccoudaly system fiow patterns and impact of development on existing system 0 Proposed pathways to Primary system shown or descnl>ed Design Criteria 0 Aily deviation from standards being requested? 0 Discussion of site constraints and capacities (streets, existing structures, etc.} 0 Discussion of any applicable previous drainage studies and how this plan will affect it Hydrologic Criteria a Rainfall/IUD01f calculalion method described and calculalions provided 0 Detention discharge I storage calculation method I calculations 0 Storm rc:currcn.cc intervals used 0 Discussion of other drain3ge facility design criteria used if not referenced in Standards Hydaulic Criteria 0 Identify capacity of systems used 0 Specify velocities at critical points in system 0 Identify detention I retention outlet and routing D Discussion of other drainage facility design criteria used not referenced in Standards Dnlnage Facility Design 0 Discuss drainage pattcma I aows ~vs. post) a Azc they draining water oolo another property owner? -if so, is it wbcrc the water flowed before? and is it not more than what fiowcd there before? and no faster than it flowed before? a Discuss erosion CODlro1 measures cmp1oycd 0 Discuss detention pond dCsign (sidcslopc, low flow chanr>ds, outlet works, fn:cboard, emergency spillway) 0 Discuss maiDtcmna: aoccss and mponsibiliW:s Conclusions 0 Verify complianc:c with DPDS (signed and scaled certification) 0 Explain effectiveness of improvcmcots with regard to controlling discharges of S • 100 year storm by a) Detaining b) Accommodating nmoff'in existing I proposed casements or P.DW discharging into primaly system c) Combination of a & b fal12 ClR Cobourn Linseisen & Rat cliff, Inc. August26, 1999 Mr. Jeff Tondre C ity of College Station P.O . Box 9960 11 01 Texas Avenue College Station, TX 77842 RE : Rock Prairie Crossing Shopping Center CLR Job No: 98-057-00 Dear Mr. Tondre : Transmitted herewith , please find two bound copies of the Drainage Report for the referenced project for your review. Please call me if you have any questions. Sincerely, COBOURN LINSEISEN & RATCLIFF, INC. Curtis R. Burnett Project Manager Civil Engineers • Architects • Surveyors • Planners 13100 Northwest Fwy , Suite 500, Houston, Texas 77040 Phone : (713) 462-0993 •Fax: (713) 462-2732 .. Rock PralrM S~ng C.ntltr ·Kroger Colt.ge Station 100-YR STORM CALCULATIONS for TMorwtlcal W•ter Surt.c. EMlv•tlon ~~JOB N0.18-057--00 I I Plpe:Ru'I ...,.. Increment! Aau &#nOi ~-Sumd -Tu.of RMCh !Oierneter ~ Dnign Design Fel I ~ Aowllne From To No. ...,.. OrairWd CA Rows Cone lAngth of Pipe Skipe ..,.. Clpdy Ve6ocity OfOp ~ dM'Am "'""' -(fpo) ~ <ac> I c-vns (n'hr) i<ni 1mn..n> 111J I I"'> "'1 ~ ~ -~ 111J (ft) (ft) __!!l 1A 2A 1A 0.44 0.44 0.35 11.&4 •.05 10.00 115 12 0 . .-0 0.008 3.6e •.6e 0.48 0.00 297.32 296.88 5.15 2A ..... 2A lA ..... lA ..... OA ..... "' OA "' ... OA 6A 7A OA 7A ... 9A OA 9A 10A 9A 10A 11A 10A 38 48 38 18 28 18 28 48 28 48 38 48 58 68 38 68 88 68 78 88 78 08 11A 88 1C 2C 1C 2C 3C 2C 3C 4C 3C 4C 3C <C 3C 12A 3C 11A 12A 11A 12.A STM MH 12A STMMH TXDOT NA _.,,._ 0.•3 0.97 0.89 11.&4 0.00 10.00 288 o.54 o.54 o.•1 11.&4 5.47 10.00 130 0.80 2.21 1.85 11.&4 21.•8 10.00 120 o.n o.n o.65 11.&4 7.53 10.00 100 0.47 3.45 2.90 11.&4 33.76 10.00 120 0.44 0.44 0.38 11.&4 .... 10.00 120 0.32 4.21 3.56 11.M 4U2 10.00 120 0.43 4.M 3.92 11.&4 45.63 10.00 116 0.35 4.99 4.21 11.&4 49.01 10.00 140 0.71 0.71 0.55 11.M 0.36 10.00 195 0.17 0.17 0.11 11.&4 1.23 10.00 136 0.17 0.34 0.21 11.&4 2.•5 10.00 178 0.99 2.04 1.57 11.64 18.27 10.00 120 o.•1 2.51 1.98 11.64 23.02 10.00 120 0.56 3.07 2.•7 11.64 28.70 10.00 144 0.1• 0.1• 0.11 11.&4 1.34 10.00 61 0.29 3.50 2.a.4 11.64 33.00 10.00 135 1.31 1.31 1.02 11.64 11.89 10.00 .. 1.00 2.31 1.88 11.64 21.87 10.00 30 o.•6 2.n 2.21 11.&4 25.69 10.00 144 0.26 3.03 2.43 11.84 2823 10.00 118 0.2.. 3.27 2.G3 11.64 30.f53 10.00 1•2 0.33 8.82 0.36 12.•5 7.30 10.21 11.&4 84.97 10.00 11.&4 ~ 10.00 0.00 1H5 10.21 0.00 0.00 10.00 1 116 ... .. 10 2.05 0.01• 13.97 7.'llO 5.86 0.00 296.86 290.99 4.53 12 3.oo o.008 10.03 12.n 3.90 0.00 294.89 290.99 6.96 " 0.90 0.01• 19.93 .... 1.06 0.00 290.99 289.91 6.84 12 2.00 0.008 8.19 10.•2 2.00 0.00 291.111 289.91 11.59 " o.•8 0.01• 1•.55 4.63 0.58 0.00 289.91 289.34 10.75 10 0.72 0.008 3.02 .... 0.66 0.00 290.20 289.34 8.17 30 0.38 0.014 22.85 4.60 0.43 0.00 289.34 288.91 8.44 30 0.36 0.014 22.85 •.66 0.42 0.00 288.91 288.•9 9.29 30 0.38 0.014 22.85 .... 0.50 0.00 288.49 287 .98 9.98 ,. 2 . ..e o.008 uu6 13.•2 •.80 0.00 295.52 290.72 5.19 12 0.40 0.008 3.66 4.6e 0.54 0.00 292.73 292.18 1.56 12 0.82 0.008 5.24 6.67 1.46 0.00 292.18 290.72 3.12 " 0.80 0.01• 18.79 5.98 0.96 0.00 290.72 289.76 5.81 " 0.48 0.01• 14.55 4.63 0.58 0.00 289.76 289.19 7.33 " 0.48 0.014 14.55 4.63 0.69 0.00 289.19 288.50 9.13 10 0.72 0.008 3.02 .... 0.44 0.00 288.94 288.50 2.45 " 0.38 0.014 12.95 4.12 0.51 0.00 288.50 287.98 10.50 " 025 0.014 10.50 3.34 025 0.00 289.16 288.91 3.79 " 0.67 0.014 17.19 5.47 0.20 0.00 288.91 288.71 6.90 " 0.18 0.014 8.91 2.&4 0.26 0.00 288.71 288.45 8.18 " 0.16 0.014 8.91 2.84 0.21 0.00 288.45 288.24 8.99 " 0.18 0.014 8.91 2.84 0.26 0.00 288.24 287.98 9.75 36 0.40 0.014 39.17 .... 0.46 0.00 287.98 287.52 12.02 30 0.50 0.014 26.113 5.49 0.74 0.00 287.52 286.78 24.20 36 1.00 0.014 61.93 8.76 0.&4 0.00 288.78 2MU4 0.00 -c;,.....,. !") 0.49 0.67 0.89 1.05 1.69 2.56 1.57 1.18 1.44 1.66 0.37 0.04 0.18 0.76 1.20 1.87 0.14 2.47 0.32 1.06 1.50 1.81 2.13 .... 9.73 0.00 """"" ~(ft) 0.56 1.112 1.16 1.25 1.69 3.10 1.66 1.42 1.66 2.32 0.72 0.06 0.32 0.91 1.44 2.69 0.09 3.33 0.31 0.32 2.15 2.13 3.02 -G<-.. ........ o ..... .,, ., 31UO 315.04 315.04 313.11 31427 313.11 313.11 311.86 313.55 311.86 311.86 308.76 310.64 308.76 308.76 307.34 307 .34 305.68 305.88 303.38 312.44 311.73 312.11 312.05 312.05 311.73 311.73 310.82 310.82 309.38 309.38 306.69 306.78 306.69 306.69 303.36 311.29 310.98 310.98 310.66 310.86 308.51 308.51 306.38 306.38 303.36 2.18 303.36 301.17 14.30Q286.76 0.00 286.78 288.14 ...... TGJ05 . .W TG 305 . .-0 TG303 . .W TG 299 . .-0 I SP300.00 TG301.10 TG 299 . .W I SP300.00 TG 299 . .-0 I SPJ00.00 TG 299.40 I SPJ00.00 TG 299 . .W I SPJ00.00 TG 299 . .W I SPJ00.00 TG 303.10 TG299.60 TG 299.80 TG 299.30 I SPJ00.00 TG 299.30 I SP300.00 TG 299.30 I SPJ00.00 TG 299.•0 I SP299.75 TG 299.40 I SP299.75 TG 296.00 I SP298.7 TG 296.00 I SP298.7 SP298.7 TG 299.00 I SP300.00 TG 299.00 I SP300.00 TG 298.701 SP299.80 TG 298.701 SP299.80 RIM 295.70 / oo / I () I I~ 2 ~6. 'lo zqcz,1 30{, 'L 1W13/99 CLR Cobourn Linseisen & Ratcliff, Inc. September 29, 1999 Mr. Jeff Tondre, P .E. City of College Station 1101 Texas Avenue College Station, Texas 77842 Re: Rock Prairie Crossing Shopping Center Dear Mr. Tondre: Please find enclosed a set ofrevised civil site construction plans along with a set of your previous mark- ups, submitted for final approval. In regard to your letter dated September 27, 1999 we offer the following : • • • As indicated in the report, we are providing on site detention for the difference between predevelopment and post-development runoff. The 2 -year discharge rate is less than the predevelopment runoff. The maximum I 00 -year event discharge rate as shown in the report calculations is 72 .99 cfs. This is less than the allowable discharge rate of 83 cfs. As shown in the report, the peak discharge rate has a negligible effect (0.0007') on the downstream water surface. Sincerely, Frederick H. Radford, P.E. Senior Engineer Associate Cc : Dan Mun.iza , CenterAmerica Property Trust Civil Engineers • Architects • Surveyors • Planners 13100 Northwest Fwy, Suite 500 , Houston , Texas 77040 Phone : (713) 462-0993 •Fax: (713) 462-2732 COLLEGE STATION P. 0 . Box 9960 September 27, 1999 Mr. Curtis Burnett Cobourn, Linseisen, & Ratcliff 13100 Northwest Frwy Suite 500 Houston, TX 77040 Re: Drainage Report Rock Prairie Crossing Shopping Center Mr. Burnett, 1101 Texas Avenue Tet. 409 764 3500 College Station, TX 77842 This is in response to the drainage report received by Fed-Ex on September 24, 1999, for the above-mentioned project. I reviewed the calculations submitted, and have found that the information submitted is not complete. With the exception of outlet works design and sizing calculations, the report would be complete for a site with a single detention pond. This is based upon the triangular hydrograph method described in the Drainage Policy and Design Standards (DPDS). However, the design appears to incorporate eight ponding areas, which may be hydraulically inter-connected . The outlet works design, which limits discharge flows to no more than pre-developed flows must be included in the report. Supporting documentation, which should include the effect of inter-basin flow if necessary, should be included in the report. Final design plans incorporating the detention design and addressing water line comments, will be required prior to issuance of a development permit. As you were previously informed, all work proceeding on the site is at the developer's risk. Work within the rights-of-way and the placement of impervious cover on the site is not currently authorized. If you have any questions, or need further information, please call me at (409) 764-3570. Sincerely, )~7.~'-- Acting Asst. City Engineer Cc: Dan Muniza, Center America Property Trust Via fax : (713) 349-0901 Raymond Suarez, Osborn & Vane Architects Via fax : (713) 781-5347 Home of Texas A&M University S°'1~ '1-~r?r~' ~r1 .,.,.,,p>c:> °"' .).."" ' r~'~Md ~ ~°-'lrll"~r:> '"'"""/Oil ~'.f-~f'o/7 ~ A?~~s wr"o+~ • Sj-J -P ·op er ?.f~J »""'n~ rt1o;11m1/' ?Jt/ ~ ()9 I ~ ~~~ /":; /'?'J . ,, b~JP2jb "r~ 1-""od?"(j ?\~."'J.lfa '--7AP,;-s ~ 00 I -'f ~,;) 5-'- ~,~~~ ~ ~ ~~1~~:s 1'/1"9 p~?~ • '$\?~ ~o/~rn.r-?.Ad OJ. .,,,~IJ.."1~/~f 'C_,·'f-71 a-.d ~~/I-~'f"IS .J.'1//"'f l~\j • f,b/b?/b r.;.-r .,, .. ~ri! T-~ '-0 ") -OJ../-"7 DlJe. -to -tla. otAdtv~lopuf ~ /av .. s~c~ CJifti ~ ok ~ fY.{)O~ ~ s:Me......X> ab YID tJ<;/t/f4,$C i~~.s d~a"1 s-tJ..~ ~ v-(LfM()w.f-(; aft. ok~-&~~ ve.f~~ {""' arep~+ ~ ~'~ p/t:lt'L1 :r CJo(.)d 141-1' Co~.s,c/tZV i-t J~vi·"'-1.d -fo l~f +G._ flt~~ s;-h:-f~ -f~ ~ Po"';/~ Ol.l.-S tf'<. 4T-~ . :>;H£e.. T{._ e...ce..4'~ ~ t.//1 r ho+ i~ ~(.. uof. ) ' CLR Cobourn Linseisen & Ratcliff, Inc. September 29 , 1999 Mr. Jeff Tondre , P .E . City of College Station 1101 Texas A venue College Station, Texas 77842 Re : Rock Prairie Crossing Shopping Center Dear Mr. Tondre : Please find enclosed a set of revised civil site construction plans along with a set of your previous mark- ups, submitted for final approval. In re g ard to your letter dated September 27, 1999 we offer the following : • As indicated in the report, we are providing on site detention for the difference between / predevelopment and post-development runoff. • The 2 -year discharge rate is less than the predevelopment runoff. The ma ximum 100 -year event discharge r ~te as shown in the report calculations is 72.99 cfs . This is less than the allowable discharge rate of 83 cfs. • As shown in the report, the peak discharge rate bas a negligible effect (0.0007') on the downstream water surface. Sincerely, Frederick H . Radford, P.E . Senior Engineer Associate Cc: Dan Mun.iza, CenterAmerica Property Trust ~ D ... ~; ""~"::. e. R l /J""'I '5 '1 () t.J s t-/6. r./ ~ (s ~ /OU.--~ P"'(.. clt.11t.lop ui. +!o(,.)s Civil Engineers • Architects • Surveyors • Planners 13100 Northwest Fwy, Suite 500, Houston, Texas 77040 Phone : (713) 462-0993 •Fax: (713) 462-2732 • I COLLEGE STATION P. 0. Box 9960 September 27, 1999 Mr. Curtis Burnett Cobourn, Linseisen, & Ratcliff 13100 Northwest Frwy Suite 500 Houston, TX 77040 Re: Drainage Report Rock Prairie Crossing Shopping Center Mr. Burnett, 1101 Texas Avenue Tet. 409 764 3500 College Station, TX 77842 This is in response to the drainage report received by Fed-Ex on September 24, 1999, for the above-mentioned project. I reviewed the calculations submitted, and have found that the information submitted is not complete. With the exception of outlet works design and sizing calculations, the report would be complete for a site with a single detention pond. This is based upon the triangular hydrograph method described in the Drainage Policy and Design Standards (DPDS). However, the design appears to incorporate eight ponding areas, which may be hydraulically inter-connected. The outlet works design, which limits discharge flows to no more than pre-developed flows must be included in the report. Supporting documentation , which should include the effect of inter-basin flow if necessary, should be included in the report . Final design plans incorporating the detention design and addressing water line comments, will be required prior to issuance of a development permit. As you were previously informed, all work proceeding on the site is at the developer's risk . Work within the rights-of-way and the placement of impervious cover on the site is not currently authorized. If you have any questions, or need further information, please call me at (409) 764-3570 . Sincerely, 1~7~~ Acting Asst. City Engineer Cc: Dan Muniza, Center America Property Trust Via fax: (713)349-0901 Raymond Suarez, Osborn & Vane Architects Via fax: (713) 781-5347 Home of Texas A&M University ((~ /Jr~G~~ Review Date:_q---+--':~'1.f!!f_7_,_'f~L __ Reviewer: ~~~~-+il-f-'~~~~~~~~- Proj ect Name: Drainage Reports ~ \t / Primary drainage system identified l?J' /Surrounding developments shown ~ Local streets, drainage systems shown cri tion ~/Acreage of project ef/ Land cover described ~/Primary/secondary systems within property shown li General description ina e Ba ins ll!J /' References to FIRMs if applicable (/' £condary system flow patterns and impact of development on existing system iu/ Proposed pathways to Primary system shown or described Design Criteria O Any deviation from standards being requested? fl'. Discussion of site constraints and capacities (streets , existing structures, etc.) ~ Discussion of any applicable previous drainage studies and how this plan will affect it u/ Rainfall/runoff calculation method described and calculations provided g1 Detention discharge I storage calculation method I calculations M / Storm recurrence intervals used ~ Discussion of other drainage facility design criteria used if not referenced in Standards 0 ~o 0 aulic riteria Identify capacity of systems used Specify velocities at critical points in system Identify detention I retention outlet and routing Discussion of other drainage facility design criteria used not re ference d in Standards Dvainage Facility Design ;g Discuss drainage patterns I flows (pre vs. post) ~ Are they drainin g water onto another property owner? -if so, is it where the water flowed before? and is it not . / more than what flowed there before? and no faster than it flowed before? 'ti Discuss erosion control measures employed 0 / Discuss detention pond design (sideslope, low flow channels, outlet works, freeboard, emergency spillway) ~ Discuss maintenance access and responsibilities ~nclusions Verify compliance with DPDS (signed and sealed certification) 0 Explain effectiveness of imprqvements with regard to controlling discharges of 5 -100 year storm by a) Detaining b) Accommodating runoff in existing I proposed easements or ROW discharging into primary system c) Combination ofa & b o:\deve _ser\fonns\engr\chklst.doc 9/27/99 9of12 PrnjectN•me ~ fJ~ C,,,$6,~ Review Date : 'f /-z7 /q7 Drainage Reports(cont.) ~en dices References (all criteria and technical information used) D Hydrologic computations J..13-Land use assumptions for adjacent property ~ ~inor/major storm runoff at specific points ~ Historic/fully developed runoff specific points E'I Hydrographs at critical points D Hyjltaulic computations Reviewe" F ~_/Culvert capacities (headwater and tailwater assumptions) rJ Storm sewer capacities ~ Street capacities 4 D Storm inlet capacities (inlet control rating) lfji!'-" Open channel design -?-D Detention area I volume capacity I outlet capacity Aqached Drawings ~Location map with drainage patterns ~loodplain map if any 4 D Drainage plan with topo (existing and proposed with arrows ifneeded) ~ D Details of outlet structures o :\deve _ ser\fonns\e ngr\chk lst.d oc 9/27199 IO ofl2 .. COLLEGE STATION P. 0 . Box 9960 September 21, 1999 Mr. Curtis Burnett Cobourn, Linseisen, & Ratcliff 13100 Northwest Frwy Suite 500 Houston, TX 77040 Re: Interim Drainage Calculations Rock Prairie Crossing Shopping Center Mr. Burnett, 1101 Texas Avenue Tet. 409 764 3500 College Station , TX 77842 This is in response to the interim drainage calculations received by fax September 20, 1999, for the above-mentioned project. I briefly reviewed the calculations submitted, and would advise you to review pages 70 through 75 of the City of College Station Drainage Policy and Design Standards (DPDS). This section outlines acceptable methods to determine the volume required for providing stormwater detention. Based upon the information submitted, I could not interpret the method you have presented or it's acceptability. If you wish to use this method for purposes other than preliminary sizing, additional documentation of this method will be necessary. With the documentation, the method can be evaluated comparatively to methods described in the DPDS. If you have any questions, or need further information, please call me at ( 409) 764-3570. Sincerely, ~/.:..1-4-~ Jeff Tondre, P.E. Acting Asst. City Engineer Home of Texas A&M University .. Rock Prairie Crossing Shopping Center rt Review Comments 9/13/1999 Drainage Report • Provide a statement that there is no adverse impact down stream as a result of this development and provide supporting analysis. • Provide evidence that TxDOT will accept a flow of 83 cfs being discharged into their R.O.W . (in writing from the Area Engineer's office). Include a description of where it is allo w ed to discharge. • Provide a detailed breakdown of all times of concentration. Include a map with flow paths and a breakdown for each flow segment. Construction Plans • As has been stated since the first review, all pipe deflections need to be shown in %, degrees or radius -with begin/end curve, and not at joint. • Steel waterlines are not within the City specs . These should be either PVC or Ductile Iron. • Lines to fire hydrants must be public . Need to show profiles for all public lines . Public lines will require a public utility easement. • Fire flow analysis shows that the 8" lines are required to both fire hydrants . • On page C-1 , elevations in TxDOT R.O .W . seem to indicate that flow is back into culvert . Need to smooth out grading in this area. • Page 3 of7, shows the City Limit line incorrectly. • Tx dot requires R.C .P . in R .O .W . . ' COLLEGE STATION P. 0 . Box 9960 Septetnber 10, 1999 Mr. Curtis Burnett Cobourn, LinSeisen, & Ratcliff 13100 Northwest Frwy Suite 500 Houston, TX 77040 Re : Final Drainage Report Rock P~e Crossing Shopping Center Mr. Burnett,. 1101 Texas Avenue Tef. 409 764 3500 Col le ge Station , TX 778 42 This is in response to the final drainage report submitted August 30 , 1999, for the above - mentioned project. On April 1, 1999 a meeting was held between your staff, TxDOT Area Engineer 's staff, and City staff to discuss methods of handling stormwater runoff from this site. That meeting concluded the necessity of either providing onsite detention or demonstrating that the increases in stormwater runoff would not produce any adverse impacts to downstream property owners (including TxDO T structures). The second option would require a detailed analysis of the downstream effects . In July we received a report which stated that detention was not required, but no impact analysis of the downstream systetn was included. The impact analysis or a detention analysis was requested in response to this report . Subsequent phone conversations with you indicated that you would be providing detention within the parking lot and stormsewer pipe. In addition, the area south of the Kroger building showed detention ponding areas. A TxDOT utility permit was issued with the assumption that on-site detention was being provided . The final drainage report, which was received last week, continues the concept of not providing onsite detention . However, this report still does not include an impact analysis with demonstrates that the development is not "dangerous to health, safety, or property by causing increases in water surface elevation, velocities , or flow rates". Although this site alone may only slight impact on stormwater flows, the cumulative effect of multiple developments discharging fully developed flows may have a very significant impact. This is the primary issue that needs to be addressed. In addition, we will be issuing comments regarding the water line, grading , and other portions of the drainage report in the next few days , which must be resolved prior to issuance of a development permit. Please provide along with the impact analysis , a letter fromTxDOT accepting fully developed flows into their R.O.W. Home of Texas A&M Univers ity . ' . I It has been brought to my attention that the contractor is currently proceeding with construction of the storrnsewer system without a permit. lbis work is being pursued at your own risk . Work should not extend into Tx.DOT RO.W. at this time. Inspections of the water lines can not be done prior to final approval of plans and imperious cover may not be placed on the site until the final development permit is issued . If you have any questions, or need further information, please feel free me at (409) 764-3570. Sincerely, /j;f~(); T~ Acting Asst. City Engineer Cc : Dan Muniza, Center America Property Trust Via fax: (713) 349-0901 Raymond Suarez, Osborn & Vane Architects Via fax : (713) 781-5347 Patrick Williams, P.E., Area Engineer, TxDOT Via fax : (409) 778-2165 Case file # 99-404 Development permit file .. . . • 09 /21 /99 14 :0 7 '5'409 778 9 7 0 8 BR YAN AH.EA UFF To : From : Date : Subject: h\EMORJlNDUM Jeff Tondre, P.E. City of College Station (Fax -764 -3496) Jay Page TxDOT September 21 , 1999 SH 6 5. West Front. Rd . @ Rock Prairie Rd./ Birmingham Rd. College Station Rock Prairie Crossing Shopping Center This shall serve as notification that the permits issued previously for the referenced development are invalid until TxDOT receives a signed, sealed statement verifying that the downstream structures and ditch area @ Lick Creek (Sta . 730+40) can handle the proposed additional runoff being discharged between the SH 6 west frontage road and mainlanes . cc : Brazos Ma i ntenance ~UUl , ( \ Oct-12-99 02:38pm From-C L R +7134622732 T-643 P.01/03 F-685 CLR Cobourn linseisen & Ratcliff, Inc. October 12, 1999 Mr. Jim Calloway City of College Station P .O. Box 9960 1101 Texas Avenue College Station, TX 77842 RE: Rock Prairie Crossing Shopping Center CLR Job No: 98-057-00 Dear Mr. C~lloway: Pursuant to Mr. Jeff Tondre's request for additional information regarding the drainage design for the referenced project, we offer the following to better clarify the design theory: • The theoretical water surface elevation (see column labeled -Hydraulic Gradient Upstream" for the 2-year storm) was calculated using Manning's equation. The computed water surface elevations should be compared to the seal point elevations shown in the "Notes" column. A theoretical water surface elevation whid'l exceeds the corresponding top of grate elevation (shown in the "Notes" column) indicates on-pavement ponding (i.e. stormwater detention). • As indicated in the previously submitted September 1999 Drainage Report, the rainfall intensity was modified to account for this on-site detention by iterating intensity values until the hydraulic grade line corresponded with actual design conditions (i.e., water surface elevation to match seal point in pavement.) The peak discharge was determined using Manning's equation and the modified intensity value . • The required detention volume was calculated using the methods outlined in the City of College Station Design Manual, as documented in the previously submitted report. fts indicated therein , the actual volume of detention provided exc.eeds this required detention amount. We appreciate you help in securing the City's approval. Please call me if you have any questions. Sincerely, COBOURN LINSEISEN & RATCLIFF, INC. Civil Engin,eers • Architects • Surveyors • Planners 13100 Notthw1:st Fw1, Suite 500, Houston, Ten' 77040 Phone ; (713} 46Z-0993 • Fu: (713) 46Z.2732 Rocle PrWM Sllopplrlt 09nler • KnlgM ~ Sllllkln 2·Ylt SlORM CALCU.lAJl()ljS fer 'lh9cwwl!Clll Wabr Sulhoe Elrn!loft CU JOIJ NO • ....,-,-40 .. """".,;; ----;;. r ... Te .... WI YH IA 1A IA ----(eQ 0.4' 0.-M -" CA c-o..ss _..., !Wt"! ti.lJ ........ l'loM Cdtl uo r ... a1 Con< .,..._, 1a.oo ---,...., "'""'" (IQ tlo'I) tu 11 ............ ~ . ...... Slope "rt' ~ \lolodly f1'l ldll ""1 ft>e) Q.40 ·, Q.oot 1A . I ... F .. l'l O.t& -n.u.. 0..,, ....... -., ~ (IQ D.00 ! 297.» · -~ Wlocilr ~) .uo ........... -f1') 0.14 aw.. :_ ~°'""""" --it.-; "'*"' Or-. (IQ .-... 0. t1 i JOU4 301Z1 -TGJUUO 4A :Ill t.43 O.P D.Jt 1.3> U! . 10.00 298 ' le 2M i 0.014 i IUJ ! UO S.• ··-------·-------------· ---·------------1-iA O.DO i __.. llO.W 2.4.e 0-IQ ! Ul j JOU7 Xl.7t I ' ; . 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Box 9960 September 21, 1999 Mr. Curtis Burnett Cobourn, Linseisen, & Ratcliff 13100 Northwest Frwy Suite 500 Houston, TX 77040 Re: Interim Drainage Calculations Rock Prairie Crossing Shopping Center Mr. Burnett, 1101 Texas Avenue Tet. 409 764 3500 College Station , TX 77842 This is in response to the interim drainage calculations received by fa x September 20, 1999, for the above-mentioned project. I briefly reviewed the calculations submitted, and would advise you to review pages 70 through 75 of the City of College Station Drainage Policy and Design Standards (DPDS). This section outlines acceptable methods to determine the volume required for providing stormwater detention. Based upon the information submitted, I could not interpret the method you have presented or it's acceptability. If you wish to use this method for purposes other than preliminary sizing, additional documentation of this method will be necessary. With the documentation, the method can be evaluated comparatively to methods described in the DPDS. If you have any questions, or need further information, please call me at (409) 764-3570. Sincerely, ~Ji /-4-K- Jeff Tondre, P .E. Acting Asst. City Engineer Home of Texas A&M University S&p·20·99 03:30pm From·C L R +7134622732 T-990 P.01/05 F-029 (LR Coboanl Unseisea ' Ratcflff, Inc. Fax To: Jeff Tondre -City of College Station From: Curtis Burnett Fax: 409-764-3496 Date: 9/20/1999 Phone: 4()9... 764-3570 Pages Including Cover: Cc: Fax: Subject: Rock Prairie Shopping Center (Kroger)-Existing Runoff Calculations CLR Job No. 98-057-00 s,tl As Requested 0 For Review D Please Comment 0 Please Reply D Please Recycle s,t1 Mail 0 Delivery D Delivery FedEx 0 No Original •Remarks: Jeff, Please review the attached calcUlations and call me at your convenience to discuss the design concept. Your help in securing City approval is greatly appreciated. Thanks,~ Curtis{'~ If there Is a transmission error, please contact us immediately at (713) 462-0993. Civil Engineers • Architects • Surveyors • Planners 13100 Northwest Frwy, Suite 500 Houston, Tuu 77040 n1 '' 4li'-nH1 Fu f71 ll '"'·n:n +7134622732 T-990 P.02/05 F-029 1----.,.-------Sep-20-99 03:30pm From-C L R ----· -·~ . -··-··--·---·-----~-------·--··-····---·--:-: "~•~ .. ,.__: - _ ~· ,, ... _______ ·--·----· ··-· --·---~~~"-· ~1~-~~ ~s.s~.J~·--·---: : : i \, ····--··---~·-·---··-···· _ ------·-.1~'2-!Curc't!f. .. .!t~o..J ' ~ ·---··-····-····-· .. -· --~---··-·-··-·---· qB-,o+~-· -·---.. i .... ·-·-·---······-···~--------~ioeg-0 • ~ . .iJotFF , I --~-~--+~-4--- I ! I •: f , I . I I I · I • I 1· 1' I I ·,: i 1' ·--~-,~-;__ _ __.. __ ,.__~-t----~-+--+-.....__-1--+--+~f--4--t-+--+-t-·-+--l---t-~-...L..-.!.._.j.._-i..~l . • ' ' • I A. I ~~I . I I I I i I I i ! A0 ~€'Jl...,,-,b_N :-·~1 ·0-~. L.1(#,; 7 14' zi F·r. I I I -·. I~ , L~1D '1, -;:. I I Z.(D ... 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' . -··· ...... -·-··. --... ---· .. ---- Sep-Zo-gg 03:3Zpm From-C L R KROGER -COLLEGE STATION CLR JOB NO . 98-057-00 +71346ZZ73Z r-ggo P.o5/05 F-ozg Stormwater Calculations -Rational Method (100 YEAR EVENT) Site Area 542996 S.F. = 12.47 AC Pre-developed peak runoff (Qp) Qp:: CIA C= 0.36 I= 8.99 A= 12.47 AC Qp= 40.35 CFS Actual allowable runoff is 83 cfs per TxDOT Project No. F471 (32) Post Developed Data c Rooftops : 152134 S.F. 0.9 Asphalt: OS.F. 0 .9 Concrete: 318733 $.F. 0.9 other: 72129 S.F. 0.3 Open Space & Stormwater Total : 542996 S.F. Cd= 0.82 TIME TIME ALLOWABLE STORAGE (MIN) (SEC) RUNOFF VOLUME CxA i a VOLUME REQUIRED {CFS) (CU. FT.) (IN/HR) (CFS) (CU. FT.) (CU. FT.) 10.225 10 600 40.35 24213 10.225 11 .64 119.02 71409 47196 15 900 40.35 36319 10.225 9.73 99.52 89564 53245 20 1200 40.35 48426 10.225 8.43 86.20 103445 55019 25 1500 40.35 60532 10 .225 7 .48 76.48 114691 54158 30 1800 40.35 72639 10.225 6 .75 68.98 124160 51521 35 2100 40.35 84745 10.225 6 .1 6 63.03 132355 47609 40 2400 40.35 96852 10.225 5 .69 58.16 139591 42739 45 2700 40.35 108958 10.225 5.29 54.10 148081 37123 50 3000 40.35 121065 10.225 4 .95 50.66 151975 30910 55 3300 40.35 133171 10.225 4.66 47.69 157379 24208 60 3600 40.35 145278 10.225 4 .41 45.10 162376 17099 09/21/99 14 : 07 '5'409 778 9708 BRYAN AREA OFF To: From: Date : Subject: h\EMORllNDUh\ Jeff Tondre, P.E. City of College Station (Fax -764 -3496) Jay Page TxDOT September 21, 1999 SH 6 S. West Front. Rd. @ Rock Prairie Rd./ Birmingham Rd. College Station Rock Prairie Crossing Shopping Center This shall serve as notification that the permits issued previously for the referenced development are Invalid until TxDOT receives a signed, sealed statement verifying that the downstream structures and ditch area @ Lick Creek (Sta. 730+40) can handle the proposed addltlonal runoff being discharged between the SH 6 west frontage road and mainlanes. cc : Brazos Maintenance ~001 Rock Prairie Crossing Shopping Center Drainage Report Review Comments 9/13/1999 • Provide a statement that there is no adverse impact down stream as a result of this development and provide supporting analysis . • Provide evidence that TxDOT will accept a flow of 83 cfs being discharged into their R.O .W . (in writing from the Area Engineer's office). Include a description of where it is allowed to discharge . • Provide a detailed breakdown of all times of concentration . Include a map with flow paths and a breakdown for each flow segment . Construction Plans • As has been stated since the first review, all pipe deflections need to be shown in%, degrees or radius -with begin/end curve, and not at joint. • Steel waterlines are not within the City specs. These should be either PVC or Ductile Iron. • Lines to fire hydrants must be public . Need to show profiles for all public lines . Public lines will require a public utility easement. • Fire flow analysis shows that the 8" lines are required to both fire hydrants . • On page C-1 , elevations in TxDOT R.O .W . seem to indicate that flow is back into culvert . Need to smooth out grading in this area. • Page 3of7, shows the City Limit line incorrectly. • Txdot requires R.C .P . in R.O .W. COLLEGE STATION P. 0. Box 9960 September 10, 1999 Mr. Curtis Burnett Cobourn, LinSeisen, & Ratcliff 13100 Northwest Frwy Suite 500 Houston, TX 77040 Re: Final Drainage Report Rock Pr:affie Crossing Shopping Center Mr. Burnett, 1101 Texas Avenue Tet. 409 764 3500 College Station , TX 77842 This is in response to the final drainage report submitted August 30, 1999, for the above- mentioned project. On April 1, 1999 a meeting was held between your staff, TxDOT Area Engineer's staff, and City staff to discuss methods of handling stormwater runoff from this site. That meeting concluded the necessity of either providing onsite detention or demonstrating that the increases in stormwater runoff would not produce any adverse impacts to downstream property owners (including TxDOT structures). The second option would require a detailed analysis of the downstream effects. In July we received a report which stated that detention was not required, but no impact analysis of the downstream system was included. The impact analysis or a detention analysis was requested in response to this report. Subsequent phone conversations with you indicated that you would be providing detention within the parking lot and stormsewer pipe. In addition, the area south of the Kroger building showed detention ponding areas . A TxDOT utility permit was issued with the assumption that on-site detention was being provided . The final drainage report, which was received last week, continues the concept of not providing onsite detention . However, this report still does not include an impact analysis with demonstrates that the development is not "dangerous to health, safety, or property by causing increases in water surface elevation, velocities, or flow rates". Although this site alone may on1y slight impact on stormwater flows, the cumulative effect of multiple developments discharging fully developed flows may have a very significant impact. This is the primary issue that needs to be addressed . In addition, we will be issuing comments regarding the water line, grading, and other portions of the drainage report in the next few days, which must be resolved prior to issuance of a development permit. Please provide along with the impact analysis, a letter fromTxDOT accepting fully developed flows into their R.O .W . Home of Texas A&M University It has been brought to my attention that the contractor is currently proceeding with construction of the stonnsewer system without a permit. 1bis work is being pursued at your own risk . Work should not extend into TxDOT R.O .W . at this time. Inspections of the water lines can not be done prior to final approval of plans and imperious cover may not be placed on the site until the final development permit is issued. If you have any questions, or need further information, please feel free me at (409) 764-3570. Sincerely, )MT~ Acting Asst. City Engineer Cc: Da.0 Muniza, Center America Property Trust Via fax : (713) 349-0901 Raymond Suarez, Osborn & Vane Architects Via fax : (713) 781-5347 Patrick Williams, P .E ., Area Engineer, TxDOT Via fax: (409) 778-2165 Case file # 99-404 Development permit file COLLEGE STATION August 27, 1999 Mr. Curtis Burnett · Via Facsimile: (713) 462-2732 P. 0 . Box 9960 1101 Texas Avenue Tet. 409 764 3500 Re: Rock Prairie Crossing Shopping Center -Drainage Report Mr. Burnett, College Station, T X 77842 The drainage calculations that we received for the above-mentioned project were not sealed. Per the Texas Engineering Practice Act, a public official of this state or a political subdivision of the state who is charged with the enforcement of laws, ordinances, codes or regulations that affect the practice of engineering may only accept plans, specifications, and other related documents prepared by a licensed engineer as evidenced by the seal of an engineer. Preliminary documents released shaii identify the purpose of the document, the engineer of record and the engineer license number; and the release date by placing the following text or similar wording instead of a seal. Said document is released for the purpose of interim review, under the authority of the engineer with license number and date of release shown. An initial evaluation of the submittal did reveal that most of the standard information that is typically included in drainage reports (and required by the City of College Station) was not included. The City's Drainage Policies and Design Standards Manual (DPDS), pages 91-94, lists items that should be included in drainage reports. Attached is a copy of those pages from the DPDS. Of these items, the most pressing is the certification sheet, which states that the drainage design is in accordance with the provisions of the City of College Station Drainage Policy and Design Standards. lfyou have any questions, or need further information, please feel free to call Jeff Tondre, or myself at (409) 764-3570. Attachment: DPDS, Pages 91-94 Cc: Dan Muniz.a, Center America Property Trust Via fax: (713) 349-0901 Raymond Suarez, Osborn & Vane Architects Via fax: (713) 781-5347 Case file # 99-404 vb'evelopment permit file Home of Texas A&M University bbbl :92 ,+sr:>\:.ny /f.l-!""'1°> sv, P. ft-->/();)/ 'Q V/.'':?../1 I° "'1 /I 0+ S (1 •.::T;?J5 I)() ASll 8t BROWNE EIYGIJYEEHIIYG1 INC. Engineers and Consultants P.O. Box 10838, College Station, Texas 77842 July 23, 1999 Veronica Morgan, P.E. Asst. City Engineer City of College Station P.O. Box 9960 409-694-2123 Fax: 409-694-3694 College Station , TX 77842 Re: Plans Check for Rock Prairie Crossing Shopping Center Dear Veronica : I have reviewed the construction plans and drainage report that were provided to me on the above referenced subdivision. Please review the following comments regarding may review: • The information that was provided for review did not contain any engineer's estimate for the portions of the job that will be public infrastructure . "k.-• There are no plan and profile drawings for the sewer lines (public portions). ~It. • The water line plans that are contained in the Architect's plans are not signed or sealed and neither is the drainage report. (I believe this to be a violation of the state regulations and should be pointed out to them .) • The drainage report lacks the following information : • Hydrologic Criteria • Hydraulic Criteria • Drainage Facility Design • There is no statement by the engineer of compliance of the DPDS . • Hydrologic and/or Hydraulic computations. • The plans reference City of Houston Specs which is inappropriate. • The cross slopes on sidewalks does not meet T.AS. and AD.A requirements for handicap access routes • It was requested that they provide a fire flow analysis. In response to the analysis, we received is a listing of the needs of the different retail areas on the site . The engineer should understand that this means a calculation of his designed system to see if it meets the needs stated in the information from SAFE, Inc. .. 'Veronica Morgan , P.E. July 23 , 1999 Page2 It would be my recommendation that the plans and drainage report be returned to them with a copy of the checklist and instructions to return them when the checklist is satisfied . Sincerely, Elrey B. Ash, P.E. Ash & Browne Engineering , Inc 09 /10 /99 15:48 '0'409 778 9708 ~y-JQ-~S 09 1D8am From-C L R BRYAN AREA OFF +7134622732 T-370 p . 01/03 CLR Coboum UnseRlt & Ratdiff, Inc. ------·- Fax To: Mr. Pat Williams -TxDOT From: Curtis Burnett Fax: 409-778-9708 Date: 5119/1999 Phone: Pages Including Cover. 3 Subject: Kroger -SWC SH 6 & Rock Prairie Rd CLR Job No: 98-057-00 CJ As Requested ,,_, For Review V Please Comment D Please Reply D Please Recycle 0 Mall 0 Delivery 0 Delivery FedEx 0 No Original •Remarks: Dear Mr. Williams, We are proposing to Install intemaL~i!e qr.alnage and det_ention for the referenced site and discharge ta SH 6 R.OW. in accordance with the Drainage At-ea Map (Project No. F471 (32)). Please review the attached sketch of the proposed storm water discharge pipe and let me know if you have any objections '~ the location. material or configuration. We will make a formal subr,,:na1 through the City of CorJege Station upon receipt of your comments Your help with these matters ls greatly appreciated .. Your help with this matter is greatly appreciated. Please ~u me if you have any questions. Tha~ks, 1 ~ Curtis ~ l, ,t:; If there is a transmission error, please contact us immediately at (713) 462-0993. Civil Engineers • Architects • Surveyors • Planners 13100 NorthWC:il frwy, Suite 500 Houston, Tens 7701-0 (713) 46Z·099l Fu (7t3) 462-2732 ~002 F-364 ASll lit BROWNE El'YGI!YEERIJ'YG, ll'YC. Eni;neers and Consultants P.O. Box 10838, College Station, Texas 77842 409-694-2123 Fax: 409-694-3694 October 7, 1999 Jeff Tondre, P.E. Acting Asst. City Engineer City of College Station P.O. Box 9960 College Station , TX 77842 Re : Check Water Line Plans and Drainage Report for Rock Prairie Crossing I have checked the above referenced Water line plans and find them to be acceptable in accordance with the checklist attached. In reviewing the Drainage Report I find the following: • Using the Rational method the Pre-Development 100 yr. runoff is 40.4 cfs • Using the Hydrograph Methodology the Post-Development 100 yr. runoff is 119 cfs. • Using the Rational method the Post-Development 100 yr. runoff is 119.3 cfs. • Using what is termed the Hydraulic Gradient Analysis and a factor referred to as the "effective intensity" the 100 yr. runoff from the site is 72 .99 cfs . • Mr. Radford in his letter dated September 29th states that they are providing detention for the difference between Pre and Post Development runoff and I cannot determine that from the report. He also states that they plan to discharge the 100 yr. runoff rate calculated at 72.99 cfs into the ditch between the service road and the main lanes of State Hwy 6 South. • On the last page of the drainage report a calculation is made that shows a negligible effect on the water surface elevation at Lick Creek for the discharge of the difference between Pre and Post 100 yr. runoff using the 72.99 cfs figure for the Post-Development condition. If you accept this figure of 72.99 cfs and its discharge into the ditch then the only question is whether TxDOT will accept this flow in their R.O.W. F:'Project5\1002 -City al College St.iion\002 -Plall5 Check'Letler5\COCS -Tondre -Reck Pr9irie Xing -DR.wpd Mr. Jeff Tondre, P.E. October 7, 1999 Page2 I feel that a meeting with Mr. Radford giving him a chance to explain his analysis would be a good idea and representatives from TxDOT should be present. ~/Ga? Elrey B. Ash, P.E. Ash & Browne Engineering, Inc. F:'Plojecls\1002 -City of College Stmion\002 -Plans Check'Letters\COCS -Tondre -Rock Prairie Xing -DR.wpd Public Water Infrastructure General ;K Overall utility layout sheet -showing easements (platted or by separate instrument) O If separate instrument easements are needed -do not approve until we get them recorded ~ TXOOT permits needed? .fl Sealed and Signed O Enginccrs Estimates ~ ;;r Pipe material ;1 Pipe s.i7.es (allowable .... 6,8,12,16,18 -note no 10" approved) ·if Depth (4'+)(min.max) 11 Separation distances (TNRCC) )it All utilities in plan & profile w/si:z.J:.s and type Z Private vs. Public line distinction Ji!' Wyer. not past property line (so meter can be within ROW/easement) 21 Max # of connections for si2.e waterline (TNRCC) .ef Pipe deflection (noted as '1., degrees, radius -with begin/end curve, not atjt) 0 Grades -existing and proposed (centerline, right and left) shown in profile 0 Full TNRCC compliance .Rf Conflicts with other utilities shown Z Labels on all major items in plan & profile (crossings) H Siz.c/Location sufficient for overall City needs/masterplan 2f Minimize dcad<nd lines .ff Liocs located in PUFJR.OW .ef Stationing OD all fi~ and~ 2'V'a1ve spacing (SOO') Z Valves -system isolation K Valves -at hydlant Z Baddlow prcvcnters/ and check valves uses as ncccssaJy (@irrigation/fire sprinkler/pools/hazards) ..2" Blowoffs (FH ok too) @end of dead cod lines 0 Air release valves at all major high points Fire Hydrants 7f Fire hydrant spacing (Coverage) ~/Fire hydrant location (relative to cwb) }Z _ Fire hydlant -deWJ/typc lipCCi.fied J!f' Fire flow calculations provided Service Lines ff Service lines -materials and size specified from main to meter ;;Y" Services provided to all lots to a point beyond sidewalks on both sides of street 1 of12 Project Name: __________ _ Review Date: __________ _ Reviewer: ___________ _ Public Water Infrastructure( cont.) Details 0 Standard Details noted or included (referenced as city of CS Standard Details) 0 Details for all non-standard items (included/ok) (not on CS Std. detail sheet) )if All MI valves and fittin~ ...er' Thrust blocking ff 'Easement width adequate ..e(° Embcdmcnt details (specify option) Z'" Trench safety if deeper than S' % Erosion control notes The following items arc variances to the College Station public waterline standards: 2 al12 - • • • • • • Using the Rational method the Pre-Development 100 yr. runoff is 40.4 cfs Using the Hydrograph Methodology the Post-Development 100 yr. runoff is 119 cfs. Using the Rational method the Post-Devefopment 100 yr. runoff is 119.3 cfs . Using what is termed the Hydraulic Gradient Analysis and a factor referred to as 'the "effective intensity" the 100 yr. runoff from -the site is 72.99 cfs. Mr. Radford in his letter dated September 29th states that they are providing detention for the difference between Pre and Post Development runoff and I cannot determine that from the report. He also states that they plan to discharge the 100 yr. runoff rate calculated at 72.99 cfs into the ditch between the service road and the main lanes of State Hwy 6 South. On the last page of the drainage report a calculation is made that shows a negligible effect on the water surface elevation at Lick Creek for the discharge of the difference between Pre and Post 100 yr. runoff using the 72.99 cfs figure for the Post-Development condition. If you accept th is I figure of 72.99 cfs and its discharge into the ditch then the only question is whether TxDOT will accept this flow in their R.O.W. F :'Ptoj ect~\1002 -Qty af Collego Statlon\002 -Plans Ch,,..k'Lattors\COCS • Tondto ·Rock Ptafri• Xlng • D~wpd ----·--- ,. .. ~, . ,.. --·-- .. , . . . Jun -09-99 07:25 pm From -C L R +7 1346227 32 T-947 P.02/04 F-957 ..,..,". ~·ef r 0'-L: '"'' '1,,11 <~~ DEVELOPMENT PERMIT MINIMUM SUBM11TAL.REQUIREMENTS ' .DO Development Peinnlt Applic:oa.tion Pee. age and erosion control plan. with supporting Drainage Report two (2) copies cada. _ cc o!Jnn:nt (N.O..t) if disturbot arr.a is greater ma S KtU. LEGAL DESCRl'P'T10N //,~ T• $/ ~ ""'" -AS'/. .APPLICANI' (Primary Cantact for-tho Prujec;t): Naala PA~ A1bNI16 StrmtAdcfrgs :!J~t:JI EJ~//11,,.t: Bwp. c-1t1 l-&111 "td,, Staio 7J< Zip Codo 77(22S P,..Mail Address DMIJNO. A , Ct!"fdhc./ltl"tt'r1e-" PIRicNumbcr 2/9 • '1'14• f3S5 Fu:Nwnber 7/~· 1'/f · ll!J(l.I ~Jt PROPBlllY O'WNCR.:S INFOR¥A. TtON: Nwns C p ""1-A7'h6'>t-I Clf ~!!!I!!. 7'1 Tru.r 7 S11'1xtAddtess .B (). 81J)( 6 S '1 I{~ ~City _Cfo __ v__...1 _?: ..... ~-~------ sasa Tk Zip Code -, 7 Z "E E-M.u Address 713 • II" I' · .!J 39 'I PhoacNwnbu --Zl..1 • """· l/.-'300 f~Numbct _____________ _ AR.CHlTECT OR. ENGTNE'.ER"S ?NFORMATION: Name f2$@/n !( ~"'1e h-,QHkt::?S' ~ /4e. StimtAddrc$5 ~~()O ~'"'-1AJ9_ #~/d Cit.y Jhll.[70.-, v --~-=-~~~------~-s iam Jk zip Code 771JS'7 ~Mail AddiCss J{SOAtf,f'Z <t! ~ ~~ Pho= Number '113 • 78/ · S' Z' Z P~ Nombc;r 7/:J • 78/ · SJ ,.7 ~ Application is ~by made fat die; foll~ dcveloprncot 15pccific si~y ~ Ciut.tTIWC7fou ce: S1_tr:(A.)n'~ t &-ht4.f31.;.?r. ~'ti 'B' ~CISNO\VLEDGME'Q'S: l, /2#/M L.l f\/ I?.,{ The tafixmlrlon and conclusions c:omaihtd in the abaw plw and s~ doc:illbf!ftts cmnply wida ibc c:arrait -of the City of CoJJcse Statian, Tms City Code, Chapter 13 and its annciatod Dmiagtr Polley and I>csip praval of this permit appli~tion. I ll&'l:C to construct the impn>Ycm~ ptOpC*d in this applic:4oa LJuo,,s~~ and dK: n::quirQ'nc:rl~ of Cbapt&:t-l~ of me Collc:Bc Scation Cfry Coclc_ DanMunlza Vice President Contraccor Development & Construction , Jun -09-99 07 :25pm From-C L R +7134622732 T-947 P.03/04 F-957 .auuv . tJ{tx --,Jo1 t ~ 0-ovf) {'t...P..\iJ (l"°"e.) ~-@ ........... wilbin......,..llaod""-'-D · A, I, c:enify that &ay noart:sidaWaJ ldrvdU~ OD Of' paupoMd 1o be Gil 1hia .... part of tbis ..,pliQ&tian i~ designated to pl"e\'cint darnagt: lo the lmldUrc or ib caat=ts 38 a rmult of~ &om lbc 100 year 'tona Dale a L ~ thDt the 6ailtd floor~ oftbe JOWtillt &or. incJudma Ill)' basrmcat. of~ nisibt:iaJ ltractu~ proposm u part ofthis applii:atioa is at or abow ~ buc &it.id~ cst:ablisbad iu thi: ~ F~ 1imnnce Adminisaration flood Hazard SQl.dy and mapa, as amended- C. I. ocrtify that die alta'atiom or ~t ~ bytbis prnmc shall not dimlDish the flood~g capacity Of the watc:rwa.y .djoinin4 or ctuUiq tbis pemiitmd Ute and that ndi .Sraali~ or development arc c:onsisteut wid\ tt:quiren=its ofchc Yt)' ofCollegB St.atian City Code. Cbapecr 13 ~ ~ts oftlacdways and off:loodway fringes. D. J. _ do certify lhat the pn>posechlterations do not .raise tbc level oft.he 100 yr;at flood abtwc clcvaPon established in tllC! ~ Fatora! Jnsur.uig; .AdntinmraDon FJcad Huard SNdy. Conditions or cort\lna'lts <ts P*l'f ofapprgval: ______________________ _ In a.::imtducc with Chapf.cr 13 of IN; Codi: of Ordinances af'lha City af Cc&so ~ ftlCUUICS mall ho takca to ~ that debris mm eonsuuc:ticin, lltvSion, IU'ld sedimentation sball hO( ~ dcposDd iD city SD'CCO. or exialg ~ ~liric:c . All ~shall be in ac:a)l'dancc wit.11 the plan. and speQfic:atiG11S nbrnitu:d. r.o and ~ro'l'Cld by the City EngiDor:t' fur the above aamcd projcet. AU oftbe applicable codm' and ordinanc:cs ofJ:hc City Df ColJe&c S11tioa $hall apply. Jun -09-99 07:25 pm From -C L R +71 34622 73 2 T-94 7 P.04 /04 F-957 36516 Fedenl Repsfw!Vol . 63 . No . 128/Monda~. J1.1ly 6 . 1998 1 '.'ioucas ntlS flOIW ~ ~FawStN(MI) s..~•111• •• Fomt """"" ..... Cllie ........ 08tt\ 1.111111-flillali&• ~ 1• GM~ N~bb Ytw · .. ,1111;._ Faw ...,-,::tt.:..d=..,---™= ... ,., ... ~~. ----- t£ · of/18"'...._., ...... A•a.-.-.. ...,...., .......... ,., .. _._. • ..,aa _.'lfallflDD,... ...... ____ ..,ZS .. I F'h........ . N o.e,Wllll-• ..... llltNa.._ •t ......... tll._. _____ ......................... -........ '* ................... ,....= ............ ¢ T • ~ ... ~..... ...... ..• a ::.:---;:,';1'u I J ·~l)I =;r: .. =::. .. '. ~·: .. ...:::=-----:... ... !&di .. :. ..... -:... ....... ::: ..... -: 09TAIN~M.L ....... 'DMJ_..,.,...,. ..... -.......... -~aMMmfll...-. i. °"'1 :ae,e -"' 5 tr ..... • ..... LC1 E..1,Nt T1 §R& ~ !:i §sll1 !I ~Al I P1R101 P1E1R1'I1] 1 't1R1 u I §.'II' I PhDne: 171l 1316~1014~1 5 1SJ ~tb.910111 I B1E ,L, l':tAI Itl9E1 1J1L1V1D1 ' l I I I I I I I I I I I I ..... rn O' ...,.,, blab. p ' aw: 1H1 ~UIS IT I OIN I I I I I I I I I I I I I I I I SllJt:ILl.I zi,c:o.: IZ1Z 12121~ 1-1 I I I J .. ,. ..... _. I R 11119.., ..... ..., ~LllllM ,,.._..._ IK1 FsOe l£1Ra ,-. 1R1 ~Cl !s I ?.IR1~!1R-1!1E1 L I I I I I I ! I -o •IB "'*'~LStHt 161@1 Iii DCIE~ I Elil Alli 2111~1 :B 1:1:21 I l I I I l I I I I I a,: I CIC I I.I II E.IG 1!.1 1S1 ?JatII IIClll I I I I I I ' 1...,tzW z:ls>OaOr. l.z121 &'IOI-I I I I 1 ~ l31oh1s'lo1(i.'I ~1~~111\oiz,,1 I CG1nW: l!l.RIAJ ?ii Q1 ~ I I I I I I I I I I I I I I Hae .. aitllt,,._,_.~ .......... ,....~ ........ .., "-Gbc *D ~.-..... .......... a~~.._.,_. xf] ........... .,.. 0 °""~.--.~ .............. SWf'f"P ..... Mll9.: I I 1 I I I I ~ I I I I I I I I I I I I I I I I I I I I I I I I I t I [ I I I J I ' I I ~ I I I I I I I I I I I I l..J.. 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"~ .... _T .. ~ ~ .............. ll ...... ~ .. ~vl ........ ................. ~ """",,_,.. 10.A,rJ1 11"f1 JJtH1J 1~ I I I I l z I I I I I I I I I I I / o-. ll~:Dl 1 ~1!I 5~ I // ~-.. /Z.-~--C? ~ , ./ \ l:l'A Form ~\G-9....,.. 3510.4 (1-11) ( \...._.I JUN-07 99 12:50 FROM:CHRISTON CO J UN~03-99 06:24 PM TODD AND CO T0:17133490901--529 1 4El9 779 4713 · ...... I I PAGE:03 ~/~? P.02 i FOR omci USE ONLY I CAS%NO.: I DA n SUBMIIT!o: ___ _ I /ZAtjM '/) ... f '(I · i PoA17 r'~Jr -~ /DEVELOPMENT PERMIT 5'Tlfi7 17~ ' ~fL\lDt't.i"M SURMIIT AL REQUIREMENTS _ S 1 ::.o.oo DevelopmcM Penr"Lic Application Fee . _ Dr.i :nago and el"oslon conrcbl Fla.n, w;th su!'portina Oralnaae Re;:ior1 two (2) copies each. ~-·.~-! oft!"\r!!'H (N'.OJ.) lt'dim:r,ec Arn is rreater tha!"I S acres. •. LEGAL DESCRIPTION Lo N. A-l i IQ.~ !:> ~ l I/ t;:; ~ · o · ~ · -l-· "· .8" // ~ ~1..bc.J1 1 v1'.t1 1 ttz1 APPLICA.:.'-ff (Prim~:-y Con~et for/ e P~oject): Narr-.~ _ RcbQ.r +-/o d .fer Ow..-f.~ $c~" -~ Addres~ -~.L-ii.!......li.:,+.--u..-..L...li.....c>...~.::!.-_.._. .... _ f1.,...x a -vt t S~te ---- Phon~ Number -"'-"'-''--......,--..+.J.""-"---FOL"( NW"l'\011' ----------------- (17~) z.,33 -1$0/ City _....;c..:;::·~s. _______ _ 51...:;.; -·-··-Zip E-Mail Addrel~ ----------- Pl-.~n~ ~umcl!.J b?. 3j-£.$ 6 7 F:i.x Numbl!:-r,, f$ --4 ~ 43 Appl !<o:'or. _;, hm Cv made (ofll'"tol:owlng fo-e!opmcnt •p<0iii• si10/wat1rway •ltera<iet.s C-.,· .. ' .. h/.J.LS..f-,f'1r·1bf' 'c ~.s t-rc~f t~-1 !J;~c ce'"' fer{ s../1·-.:,1>J')> ·t:---7 __:.._: .. ) , · r' s ·' 1 I .,lCK~-OWLEOC.'.\.f(NTS: ( I I. i. ~ 01! f" r j"; ddt fr.~ .. ·1fan 1SI • ,-,,tir/\1w-n;r, h.:rcby a.aknowledgc or nffirm th;i: I. The ~..._:·-: :·:-:".l~ion ar.d ~or.clu1>ion~ ~1:;J i r:.:d in thd ~b~..-~ plill\s :..:1d ~uppcrrtns ~ocumcn~ .:-::r..~I~. ,~;r.h th: .curr~nt rcc;1.:~. · .. :.:~;.; o(t.~:! '.::ry of Colkjj~ ~::.:i on. Tc .'(l~ C1cy Code:, Ch:i.pccr I J a.nd 1t.s ~.:m1¢:~:.?~ 0~:..,:ig: Pol :cy illld Design S"'"--,~~r;_., I ~i l c_~:::Jt :on of •. ;;.;.uo1,:il or'thi~ ~:-:i;it ~p~\J~Jti1Jn, I lgr~~ :~ ::::-,s;ruc:r t.'i; improHm":;~ ;:;-;i!H~ ;.-: :.~i.s :lppli~_,cio:'I :i..:;;or:¥.po ~ase C ·::'cum~nci: :i~.! ;II..: r.:q :.m.:m-::irs or" CJU)jHCi I~ ;iE' chu Colle3e Sto.tion C i::: Cc.:!.: ~~:~ 7 • t':ff.~:. G·.\r,l!r(:; rl'? \: •f '-f-Ccr.~:-:i.;:.;ir -- C.:~. ~ : •. -.. · ~::·. ·~ :•!:.~.'.:.· i : vr : 01·'.::·:.;;".':,-;.;l:·,~ I JUN-0 7 99 12:50 FROM:CHR I STO N CO J UH-03-99 Q~:2 4 PM TODP I I I I ! I t AND CO DEVl:LOPMEMTPIRMIT PERMIT NO. 6'7 LO Ball Subdi~oia T0:17 133490901--529 1 41219 ?79 4713 AS OtJTSmi:: nm SP2CIAI. PLOOD HAZARD AJtU 13 Of nre COLLCOe 8TATION' Cl1Y CODB SITX LEGAL DU f.lulllbir-. D,in: ROW I • 1WN'Elt: ' I Delalll' ~ Ptlirit UHO ~oo f Jt.oad Dalla&, T 75:U.C DRAINAGE BASIN: upc C:UEIC SITE ADDRESS: n'l>E OP' DEVELOl'ME~T TBIS PERMIT IS VALID FOR CONSTllUCTION or PlJllLIC STREET WITH ASSorurn DRAINAGE PLUS UTIUTJll. · ~ Con~ ahall CAim all! ~7 pCQQlutlons i.o prcvca1 1llt and <1et1r1' .uom 1cavins Ule tmmoalall ... vustruc\Joa ~:·-~ in aa:orda wfm the approved erosion control plAft u well u ~ City ot CoUo,. Sutinn DnlMgc Policy and oaian Critoria. The OwnGr uidlor ConU'lc&or aliall 6llW'O that all dlstwbcd arGA& ate aodd~n and c:.tabWi ant ofvc1~tion occun prior to rcmova1 of al\)' slll fcnang or hay bale• u~cd for temporary cm.i:lon nt.rol . The Owner and/vr Comractor cll&Jl aJto I~ that uy di.Wrbcd vq:eu tion \JC.: • u1ur11od w ia ri&Nll c:ondlt.i.on, pl3~n' ancl 1w;, Thi; Own~r anlVor Contrac:uir &bAJI be responsible for any Um&c to acijac.cnt propcrtle!, city atrncf.I or infr.utruc.tutt due to hnvy machlne7 ll !;J/or equipment u well as e o.cion, 'lll:ulon or ICdimonlAtion resulting from the pcrmittod work . /\.lly tro1:1 ~wr~ 'o be pro~ byordlnan~ or as part otthe IJJtdccapc plan must be completely tencod oororc any operations ottN1 ~t cu bca!n. · I Jn ~~ordQrT (. "1 1/th Clt(Vll~r i· o/ lhl Codt Q/Ordlnone11 of th• Cl/JI oj"Co/11g1 Slal/011, llffllml"I• llfall ·1~ rakerr to 1n.om1 that tUOfil rom cOlflll'IJ~tl61t, 4rd.rio1t, (llf</ udim•nlali«J 1IJt11l n'11 h1 d~pontffl ltr olty .H,cet.r, o~ 1Jdllln6 tlHin• fi llilit11. I I l u:rcb>' grant this r""'lt Ar d#!WIDpnr#nl cf Qn ~rf• OtlUltlw '"' 1pcalt1I flood lttJZard orta. All /Jl.'Vll~P"""' 1h ull bf l ;JianCC' with the p/Qlfx ~ntl ~djlc11tlon$ nbmllt•d lo Mtl fVJpav1d 1')' tlr• CUy Englntcr '" the lo nr 1¥""'" oppllt:atl01t /of t/11 4/JtJw "°"'~" proj~t """ oll '1/ lh1 '°"" ~ ord 'naflCOI a/th of 11.,. Stwllvn thfll r1pply. c=:;.\) .. ~ ~ -~S\S >.,~~ D*k-~-?; OWucr/MAA I Dau: I Cont.nctor t Date PAGE:04 P. li!l:i JUN-07 99 12:50 FROM:CHRISTON CO • J UH-03-99 0G:29 PM TODD AND CO T0:17133490901--529 1 409 779 4713 r. , . "" r-; .. "'"' . I ) ."'. .) PAGE:05 P.04 . JUN -03-99 THU 03:56 PM CA EXEC/REDEV FAX NO . 36516 Federal Repter /Vol. 63 . No. 128/Monday. Ju ly 6. I 998 /).iouc15 =&8~ lMll!l-lil .. IUU.,. S ~ ·--·-~ci;--...... ., ........... _..,, 0 .... ,,, 7 , .. ~M:TMTY ...... ..-....... ..... P. 02 SAL '· :t1taNllPll9f/l-..m ea ........ ...,......, • ..._,.,.--.. .... , ... _, • ..,.. ........... •---. u ._ .-..., .... a n a.., ..... ...,.. ...... .,,..._• ,,, ...... 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ZlpCOda: 171710 12 151-1 I I I ...._.NMw: 1K1R,Ofi,E1Rt 1:i 1R 10,C 1K, 1PiR1A1I1R1I1E1 1 1 1, 1 ~~l.S1H1 161@1 1R10C1K1 1'flR1AII1RfI 1£1 !R,1D1 1 1 I I II I e1y: tc1op .1 II E1G •E• LS1 DA!T! r 101N1 t t 1 ~ l11o13151! 014'1 l.anlMI: 19! 611! 7jO 17 J, I SWP'f'1> I I I I Sim: lilxJ ZJpCoclr. 17171 &4101-1 Coi-:lDtRtA1ZI01S1 I I I I I I I I I Ad&ll9s'~~·_.. ............... ._.. .............. 1~1~1-1 ....... 1~1~1--1 ........ ~~ ............ ~1~1 ....... 1~1 ......... 1-'-....... _. ..... I I I ~ '~-1_.... ....... ~._. ................ _1 ......... 1~1--1~• ...... 1 ....... 1.._..__. ...... ........ ,_.al.._...YMr. lL1IrCtK1 1C1R1fJE1Ki Lt I I I I I I .... Dl!lr ,.., I I I I I 1 .... °"' ,.., ~C4111¢lt• I 0... ~a1 ............. l'D ........ l: I I I I I 1 12 I '-0~ 2. GQc once,,., "'°""' 3.00ral*- '· 0 Oi.:e per clay 5.o~ S.. lJ..J ZIPCoda: I I I I , .. , II II I I ,._,•NMdarlJIOllldlld~/ddE--Alll .. ,....ft ..................... _. ...... ,, ...... .................... ..., .,._0 ND e(" ,.,. ..... ,,.,,,........, ... ,.......,...... . .................. lrl:W-*"dPWt!Jl.3.&'2) al .. PllJlll ldWdr ·cne Oii-om.): (al 0 (b) D (c) 0 (II ) 0 PrW!rNzf-.......,'-=.._.-...;1.;;.A:~~~ .......... -11--'--l.....J..~f--i....i.-'-:~'-'-~.J.......J.......l.......I-....... s~ COLLEGE STATION P. 0 . Box 9960 September 27, 1999 Mr. Curtis Burnett Cobourn, Linseisen, & Ratcliff 13100 Northwest Frwy Suite 500 Houston, TX 77040 Re: Drainage Report Rock Prairie Crossing Shopping Center Mr. Burnett, 1101 Texas Avenue Tel : 409 764 3500 College Station, TX 77842 This is in response to the drainage report received by Fed -Ex on September 24, 1999, for the above-mentioned project. I reviewed the calculations submitted, and have found that the information submitted is not complete. With the exception of outlet works design and sizing calculations , the report would be complete for a site with a single detention pond. This is based upon the triangular hydrograph method described in the Drainage Policy and Design Standards (DPDS). However, the design appears to incorporate eight ponding areas, which may be hydraulically inter-connected. The outlet works design, which limits discharge flows to no more than pre-developed flows must be included in the report. Supporting documentation , which should include the effect of inter-basin flow if necessary, should be included in the report. Final design plans incorporating the detention design and addressing water line comments, will be required prior to issuance of a development permit. As you were previou sly inforn1ed, all work rroceeding on the site is at the developer's risk . Work within the rights-of-way and the placement of impervious cover on the site is not currently authorized. If you have any questions, or need further informa tion, please call me at (409) 764-3570. Sincerely, ~(~,__ Jeff Tondre, P .E. Acting Asst. City Engineer Cc: Dan Muniza, Center America Property Trust Via fax: (713) 349-0901 Raymond Suarez, Osborn & Vane Architects Via fax: (713) 781-5347 Home of Texas A&M University center America l"roperty ·1·rust TELF.COPIER TRANSMrfr:A(,._fQ.EM DATE;_L1.?,fi~/'71 TIME: -------PAGES:_?-.;:__ __ (INCLUDING THIS PAGE) TO: s::;lim c4-U~~ COMPANY: C:::::: 7 .z1"= ~llU.t'.-g_ TELECOPIER NillvfBER: Lj{J 1-7?'-/--' {tf (p REFERENCE :_--'-~--=--...o.~;;:;..__:Pt'--J.:,e_/h....;.....:...L1 f?~I C...,,~-------------- DOCUMENT(S) TRANSMITTED: _____________ ~·-------- COMMENTS: ~----------~~~-~~---------~~-----~-- -----~~----------~~~~-----------~----~-~~ r.====··-...· .u...c...... . --. ·-·· ........ -....... ·--·-· NOTICE AND DISCLAIMER: The infonnar.ion in the pack.'\gc is for your review relative to a prc!•p::'ictive lca.~e of the above propcr't)'. No warr.inty or ~prcscntltion is made by Center America Proper't}' Trust, or its affi li.J.i:es or n.ny other p11.rty fomishin:; information, as to the .lccur.1.cy or complt:teness of the information contained herein . Prospective te:nAnts ~hould !Tlllke their own invc:stig:uion, projections, and oonclusions without relilnce upon the mar.crial conuined herein . TI1e rnuteri.a! herein is subject to chMgc. This property may be 1-c111ovc!d from the marl<ct at any time, without notice. THE INFORMATION CONTAINED IN IBIS FAX MESSAGE IS CONFIDENTIAL AND IS INTENDED ONLY FOR IBE ADDRESSEE NAMED ABOVE . IF YOU ARE NOT THE NAMED ADDRESSEE OR AGENT TO DELIVER IT TO HIE ADDRESSEE. NOTE IBAT ANY DISSEMINATION OF IBE INFORMATION OR DISTRIBUTION OR COPYING OF nns COMMUNICATION IS STRlCTL y PROHIBITED. Ir YOU HAVE RECEIVED nus COMMUNICATION IN ERROR, PLEASE IMMEDIATELY NOTIFY us BY TELEPHONE AT OUR EXPENSE AT 713/660-4300. THANK YOU. """·'""''·====-=========-----'""'·=-=· .. ==========================!) LP.AS/NG DEPT. FAX #(713) 668-3394 PROP. MGMT. DEPT. FAX #(713) 665-0331 LEGAL DEPT. FAX 11(713) 665-0450 ACCOUNTING DEPT. FAX #(713) 665-4282 EXEC. DEPT./REDEVFLOPMF.NTDEFI'. FAX #(713) 349-0901 PLEASE CALL THE TELECOPIER OPERATOR IF THE FOLLOWING DOCID.1ENT(S) ARE NOT LEGIBLE. co110 'd FOR INFORMATION ABOUT CENTERAMERICA, PLEASE SE.I'; OUR WEB SITE AT WWW .CENTERAMERICA.COM 3901 Bcllai~ Boulcnrd • Hou5lon , 1"cll'1S 77025 •Tel. 713.660.4300 A REIT Affiliate 'ON Xti.:l A3Q3~/03X3 tJO Wd 9v:EQ OHl 66-vl-100 ,ll~l~~~lll~ll!llll~~ll~~llll~llll~lM~J~~l~~l~~~I~~ FAX MEMO . · ll!~l!l~lllllll~!llll~~l~ll~~~@~j!ijllll~~I Date: 14-0ct-99 To: Dan Muniza .. ""-·-Company: Center America Property Trust Fax No.: __ 7t~:~49-0~9J .... Subject Rock Prairie Crossing Shoep.L~.g cntr. Pages to Follow: 0 From: Thomas Gries WILLIAMS INDUSTRIES, INC. Phone: (713) 849-1400 Fax No: (713) 849-1450 -----------------------------·-···---· ··-·-.. -· Dan, .,.._ _ _,,_ __________ ,..... ····~·---...... . -Here is a list of work items that 1i'iied. to .start withiii-tlie ·n.0X:Ttwo--.. ·· ....... _. ____ . --·- ~eeks in order to keep the schedulefrqni"slipping anymore than----......... ~-.. ·~'. ~-- it already has. Nwuber 1 is high~~t ~riori~f.! ... ·-··-· .. . . __ .... . ... ·-·-·- l sanitary-sewerserviCe 'to ""})iifiding pads 2 dome~t_~~ .. ~~J~_r.. ~~~c~ to_ buil~g pads 3 fi.re sprinkler service to building pads 1 ___ 4 ___ ~le~!r.1-~.~ .~erv.i:c~ ~~. ~ulldlng pads ..... . . .. ____ ..... ·-···--·--·-·. , ___ 5 __ ··· Qtl!le~ pl~t:~. at .~WJding pads __ .......... -.--.. ·---· ...... . t--__ s ___ ,, __ ~4e~~Q~~-~!ectrical at building pads 7 under2t'ound ulumbw at bulldin.1r pads :==-· -s .. .. ... ·s1ali· & uade beams ----- 9 fire water piping and fire hY.~?JitS ... .. 10 site lighting c9n~uits .. ·-------·-------·------·--~ .,__ __ 1_1 ___ ... trrlg~~o~o.,...s;;_le_e_v...:...es~-----------·. . ........... _ As you know ~.e . pi;oje.~~4..~onipletiOndate is 7 weeks--jiastthe· .. .. ... .-~:-. ___ ....... ~ 180 ~!JYS .~~-~pulated in our contract. Any work that can-~~ ~_!.~rt~~-~9w .... -__ must start now. lfnot, the scheduie will continue to slip. .. .. ........ "., . . .. ... ____________ .... , . ·-·----·--· -"' "" ..... __ , ___ ,,,, ____ ....... .. -·-_..,,---~-----...... ______ ,. ________ ,, ______ -& ~~~-:-.. -~-=-l --... -... -_ -_--=.--.. -=. ~. ::~_-_-_·_-·-=--.. -.... -..... ===·-·~~-~------·------. _-__ ---.~.-:.. -~ ..... ____________ , ______ ,, '' .... - Thomas Gries ···· -----------------............. · .. Project Manager .. _ .. ·--.... . .... __ ··=================-... -... -.. -... --... -. -···--·-·-·-·-.. -·- ·----···· --·-·· .. -------.. ---·--··----·· · 20 120 'd 'ON Xt1.:1 A3G3~/83 X 3 t18 Wd 9P:£0 OHl 66-Pl-180 v ASH lit BROWNE ENGINEERING, INC. Engineers and Consultants P.O. Box 10838, College Station, Texas 77842 July 23 , 1999 Veronica Morgan , P.E. Asst. City Engineer City of College Station P.O. Box 9960 409-694-2123 Fax: 409-694-3694 College Station , TX 77842 Re : Plans Check for Rock Prairie Crossing Shopping Center Dear Veronica : I have reviewed the construction plans and drainage report that were provided to me on the above referenced subdivision . Please review the following comments regarding may review: • The information that was provided for review did not conta in any engineer's estimate for the portions of the job that will be public infrastructure . -• There are no plan and profile drawings for the sewer lines (public portions). ~It. • The water line plans that are contained in the Architect's plans are not signed o r sealed and neither is the drainage report . (I believe this to be a violat ion of the state regulations and should be pointed out to them .) • The drainage report lacks the following information : • Hydrologic Criteria • Hydraulic Criteria • Drainage Facility Design • There is no statement by the engineer of compliance of the DPDS. • Hydrologic and/or Hydraulic computations . • The plans reference City of Houston Specs which is inappropriate . • The cross slopes on sidewalks does not meet T.A.S . and AD.A. requirements for handicap access routes • It was requested that they provide a fire flow analysis. In response to the analysis , we received is a listing of the needs of the different retail areas on the site . The engineer should understand that this means a calculation of h is designed system to see if it meets the needs stated in the information from SAFE , Inc. :''/\.;.;. •'• '.~- •~-' S!tiE_~ tn;,\ --:~2." _-/',,! . . ~:. ....... ~. .... ·!"·' ··' ·veron ica Morgan , P .E July 23 , 1999 Page2 It would be my recommendation that the plans and drainage report be returned to them with a copy of the checklist and instructions to return them when the checklist is satisfied . Sincerely, Elrey 8 . Ash , P .E Ash & Browne Engineering , Inc Review Date: __________ _ Public Water Infrastructure General O Overall utility layout sheet -showing casements (platted or by separate instrument) O If separate instrument easements are needed -do not approve until we get them recorded 0 TXOOT permits needed? ~~..::1~~ ~pet Pipe material i;j Pipe mes (allowable .... 6,8,12,16,18 -note no 10" approved) · !Y' Depth (4'+) (min.max) nt.' Separation distances (TNRCC) lt.1 All utilities in plan & profile w/sizes and type CY Private vs. Public line distinction i( Wycs not past property line (so meter can be within ROW/casement) ~ Max # of connections for size waterline (TNRCC) Pipe deflection (noted as '1 .. degrees, radius -with begin/end curve, not atjt) Grades -existing and proposed (centerline, right and left) shown in profile Full TNRCC compliance Con1licts with other utilities shown cY Labels on all major items in plan & profile (crossings) ~ Siu/Location sufficient for overall City needs/masterplan CV I Minimize dead~ lines IS>' Lines located in PUE/ROW ~ Stationing on all fittings and taps ~aJ'V'atve spacing (SOO') "if Valves· &ystem isolation Valves -at hydrant 0 Backflow p'revcnten/ and check valves uses as necessary (@irrigation/fire sprinkler/pools/hazards) NA 0 Blowoffs (FH ok too) @ end of dead end lines NA. 0 Air release valves at all major high points YIR Hydrants . ft Fire hydrant spacing (Coverage) 'fl Fire hydrant location (relative to cwb) I iJ F~hydrant-~~fied . L 1 ~)-vio ~~f 4~'/s{~ 1 '> .;~, ~uc flow calculatioos plOVlded h.,. e.-(/6't.u7 ~ 7~ Se "ce Lines Scrvioc lines -materials and size specified from main to meter ~ti.. 0 Services provided to all lots to a point beyond sidewalks on both sides of street 1 oCll Project Name:, __________ _ Review Date: __________ _ Reviewer: ___________ _ Public Water Infrastructure( cont.) P.£t!ll! S" Standard Details noted or included (referenc:ed as city of CS Standard Details) e" Details for all non-standard items (included/ok) (not on CS Std. detail sheet) ~ All MJ valves and fittings IJ'. Thrust blocking ti(' F.asernent width adequate ~ Embcdment details (specify option) ~r Trench safety if deeper than s· 11 Erosioncontrolnotes The following items arc varianoes to the College Station public waterline standards: --------- - 2a{12 Project Name: _________ _ Review Date: __________ _ Public Wastewater Infrastructure I General O Overall utility layout sheet • showing casements (platted or by separate instrument) 0 If separate instrument casements arc needed -do not approve until we get them recorded D TXDOT permits needed? D Sealed and Signed CY Engineers Estimates Lines ~Pipe material (;!' Pipe siz.es (allowablc .... 6.s.10.12.u.1s) (j) Depth (min cover) Ql / Depth (excessive) or Separation distances (TNRCC) ti All utilities in plan & profile w/&izl:s and type 0 Private vs. Public line distinction N~ 0 Wycs not past property line ':::Y / Grades -existing and proposed (centerline, right and left) shown in profile 19' Flowlines(spccified/labcled) CV Full TNRCC compliaDcc ID Conflicts with other utilities shown (min. I 'clear I except water -see TNRCC) Labels on all major items in plan & profile (crossings) t-I~ 0 Siz.clLocation sufficient for overall City needs/masterplan Lines located in PUF./R.OW Stationing on all manholes and services Manholes Hf\ El Lines cod in MH If Manhole spacing (max SOO') 0 Manhole diarnet.cr based oo depth and line size (4'vsS diam.) t-\ ~ 0 Manhole covers -"watertight" cover if in fioodplain tO , Manholes accessible from public ROW/casement ~ Manholes at change of aligmncmt. grade or size 111 Drops through manhole (TNRCC) Service Lines ~ ~ D Service lines -materials and si7.c specified from main to end ~r\ ~ Services provided to all lots to a point beyond sidewalks on both sides 8 .Services~ 6" enter at manholes 3 a{J2 Project Name: __________ _ Review Date: __________ _ Reviewer. ___________ ~ Public Wastewater Infrastructure( cont.) ~ fl' Standard Details noted or included (referenced as city of CS Standard Details) ~ Details for all non-standard items (include/ok) (not on CS Std detail sheet) Easement width adequate ~ Embedment details (specify option) Ci . Trench safety if deeper than S' ii' Erosion control notes The following items arc variances to the College Station public wastewater standards: ------------ - "a( 12 Review Date: __________ _ Reviewer: ___________ _ Public/Private Streets General 0 Overall plan layout of streets t\,~-0 Plan and profile for all streets O If separate i.ostrumcnt casements arc needed -do not approve until we get them recorded 0 TXDOT permits needed? rf Sealed and Signed Engineers Estimates Street Paving Plan t't-~· 0 Sidewalk locations per subdivision regs . ~ Cwt> inlets shown ~ Culverts location l\f Storm Sewer location H fl( 0 Bike lancs/striping t-JP\ 0 Street widths µA-0 Right of way/casement width ii' Radius sizes for (cwb returns, median noses, turn lanes, etc) D Cwt> and Gutter delineated N.P.· 0 Street Names N ~ ~ Plan and Profile -stationed l!!J Bem:hmarks referenced 6-1 .fi., 0 Centerline stationing info. (PC, PI, PT, other angle/bearing) f-..lP.. 0 Cwve info (length. tangent, radius, angle) tJ A. 0 Min. and Max. grades µ,P O Radii Sidewalks i /Width rs! Location O} X-61ope I! X-scction (btMin& thi~ sec details @ Handicap ramps (locatio ~ng slope, landing width, sideslopes, no cwb returns on ramps) Paving Profile tl-ilt.. 0 All proposed and existing utility conflicts shown with size and flowline \-t~ ~ Profile of existing ground (centerli.Dc, right and left) lid' Location of propo6Cd storm scwcn with size and grade \.\b.. 0 Top of cwb profile with grades ~.~o Proposed paving profile 'ofll "··~-'" Public/Private Streets(cont.) Ds!!il1 rl. Sidewalk x-scction ef Tic between sidewalk and back of cwb ( if applicable) tJ.~ ·SJJ Paving x-section w/crown dimensioocd ~ Handicap ramps rrl Cwb and gutta Project Name: __________ _ Review Date: _________ _ Reviewer: ___________ ~ The following items arc variances to the College Station street standards: 6all2 Project Name: _________ _ Review Date: __________ _ Reviewer: ___________ ~ Public/Private Storm Sewer Gsneral O Overall plan layout of drainage facilifies (can be shown on street plan) showing easements O If separate instrument easements are needed -do not approve until we get them recorded M lan and profile for all storm sewers TXOOT permits needed? Scaled and Signed O Engineers Estimates ~rm Sewer/Culverts ;/ Pipe material (RCP = storm. RCPorCMP = culvert) l!l' Pipe siz.es labeled (see pg.47 DPDS) SiuJLocation sufficient for overall City oeeds/masterplan Depth (min cover) Depth (excessive) All utilities in plan & profile w/si:o:s and type Private vs. Public line distinction K J Street grades -existing and proposed (centerline, right and left) shown in profile IW Flowlines (specified/labeled) ~ Conflicts with other utilities ~wn j Labels on all major items in ~& profile Located within drainage casement or right-of-way (specify width) (public only) Easement width adequate per DPDS Stationing shown Outfall location (if open, is rip-rap needed per design calcs) Does it match drainage report (sizes, inlets, etc) Hydraulic Grade Linc (on plan or in drainage report) _/ Junction Boxes/Manholes/Inlets 19' Lines end in JB/MH ~ JB/Manhole spacing (sec pg 47 DPDS) @I JB/Manholes accessible from public ROW/easement a// JB/Manholes at change of alignment, grade or siz.e EY Drops through inlet/manhole/JB (see pg 48 DPDS) ~ Cuib inlets shown and labeled (referenced to drainage report) !!mill . rfi Standard Details noted oc included (referenced as city of CS Standard Details) ~ Details for all non-standard items (included/ok) (not on CS Std. detail sheet) ~ Emhcxlmeot details (specify option) OJ Trench safety if deeper than S' r!i :Enmon control ootes \-\~· 0 Culverts (SE'I) ';/ Inlet/J-Box or manhole details (manhole access) 7oll2 Project Name:. __________ _ Review Date: __________ _ Reviewer. ___________ ~ PublicJPrivate Storm Sewer (cont.) , 1 l Channels r1f+I --O Cross sections with side slopes -meets DPDS JJI. · 0 Channd Liner -per DPDS -ti" 0 Longitudinal slope (0.4% min.) 0 Rip Rap needed? Details 0 Standard Details noted or included (referenced as city of CS Standard Details) O Details for all non-standard items (include/ok) (not on CS Std. detail sheet) 0 Erosion control notes ntion S stem Side slopes Bottom slopes Grading plan Low tlow fl.woe Outlet Structure shown -corresponds to drainage report Inlet Structure shown -corresponds to drainage report Emergency spillway -corresponds to drainage report Rip Rap if high velocities exist at inlet or outlet -lengthlwidth/siz.ddetails Flowlines at inlet and outlet Complies with drainage report The following items arc variaoces to the College Station drainage standards: lot'12 Review Date: __________ _ Reviewer:._.=£,_,.....://'---~___..::;.=------ Drainage Reports Location t!' Primaiy drainage system identified : Surrounding developments shown 0 Local streets, drainage systems shown Description ~ Acreage of project ~ Land cover described ~ Primaly/secondaly systems within property shown ~ Gcocral description Drainage Basins 0 R.cfcrcDc:cs to FIRMs if applicable 0 Secondaly system flow patterns and impact of development on existing system 0 Proposed pathways to Primaiy system shown or described Design Criteria 0 Ally deviation from standards being requested? 0 Discussion of site constraints and capacities (streets, existing structures, etc .) 0 Discussion of any applicable previous drainage studies and how this plan will affect it Hydrologic Criteria 0 Rainfall/runoff calculation method described and calculations provided 0 Detention discharge I storage calculation method I calculations 0 Storm rccurreocc intcrvali used 0 Discussion of other drainage facility design criteria used if not referenced in Standards Hydaulic Criteria 0 ldcnti.fy capacity of systems used D Specify velocities at critical points in system 0 Identify detention I rctcotion outlet and routing 0 Discussion of other drainage facility design criteria used not referenced in Standards Drainage Facility Dqign 0 Disa&ss drainage pattcms / fiows (pre vs. post) 0 Arc they draining water onto another property owner? -if so, is it where the water flowed before? and is it not more than what flowed there before? and no faster than it flowed before? 0 J;>iscuss erosion control measures employed 0 Discuss detention pond design (sideslope, low flow channels, outlet works, freeboard, emergency spillway) 0 Discuss maintenance access and responsibilities Conclusions 0 Verify compliance with DPDS (signed and sealed certification) 0 Explain effectiveness of improvements with regard to controlling discharges of S -100 year storm by a) Detaining b) Accommodating runoff in existing I proposed casements or ROW discharging into primary system c) Combination of a & b f a(12 Drainage Reports(cont.) Appendices 0 References (all criteria and technical infonnation used) 0 Hydrologic computations 0 Land use assumptions for adjacent property 0 Minor/major storm runoff at specific points 0 Historic/fully developed runoff specific points 0 Hydrographs at critical points 0 Hydraulic computations Project Name: 0 Culvert capacities (headwater and tailwater assumptions) 0 Storm sewer capacities 0 SUcct capacities 0 Storm inlet capacities (inlet control rating) 0 Open channel design 0 Detention area I volume capacity I outlet capacity Attached Drawings 0 Location map with drainage patterns 0 Floodplain map if any 0 Drainage plan with topo (existing and proposed with arrows if needed) D Details of outlet structwes 10of12 Project Name:. __________ _ Review Date: __________ _ DEYELOPMENTPERMIT 1. Application Fee ($100) 2. Application 3. Erosion Control Plan 4. EPA/NOI (> 5 acres) 5. Public Infrastructure Inspection Fee ($300) 6. Drainage Report 7. HOA Covenants for maintenance of detention/retention ponds 8. Easements Dedicated (separate instrument) 9. TXDOT permits is.med 10 . Enginccr1 5 Edimatc:s (1-4 nccessaI)' for rough gradinglclearing ....... all others RccessaI)' for full permit) 11 o(J2 " '··-· \. Review Date: __________ _ Reviewer:. ___________ ~ TXDOT PERMIT CHECKLIST 0 Permit signed (Utility or Driveway) by owner 0 Set or excerpts of construction plans of what is proposed within ROW 0 Traffic Control Plan (IMUTCD) 0 Drainage Calculations (if applicable) For City Uac O Sign permits 0 Attach cover letter 0 Submit in triplicate to TxOOT 12 ol12 OSBORN & VANE ARCHITECTS 5 Transmittal Da te To 'iJ/lli J"4 ~r145eJ.k 9U>~ Ct-kt q= U, 11e't-S~fto,, Project ~~ pra I I' 1, Cn.tiss 1 ,.J6-S . c. Project no. q 8 ( 6 7 ---- ~erewith D Under separate cover By rlt1v1 01i D Messenger D Other No. of Copies Descriptio n I Date G4 pr1/lt -EroS'ion (i.nh---ol Pla,.. (t;k t'Y1 ~~ Pa 11 Uf/Orl ____ AoPr-imv1g.JI plt.\t1) lll"For your use D For approval D For review and comment ~s req_u_es_ted_b_y you. . Remarks Copies to: With enclosure 2000 Be rin g Drive . Suite 410. Haus on. Texas 77057. 7' 3 781 5262. Fox 713 781 5347 Members American Inst lute of Architects 0 0 0 OSBORN & VANE ARCHITECTS ~ Tra nsmittal Dcte 0//q /qq B ('I cl~ e-J.h: G-~ l'-j e, Q h, Of G II ~9 e_ ~ho t1 :;,8Jec ~ck. fr-t:t 1 ~(<:.-Oz.o551r-Jer. 5.C. ?'qect no q 8 { ~ 1 ' o of Copies Descrip ion I Ocie lw COn sf-r vchiJ,, DoC<.J Me l\,b pri/\-h-C ?~"'-'~-~_.~-pa.e-~a.'3 (,,) s ~ /Z.~1r;W Co /VlfVl~'\h tJ~ 3 ~emcrKs k-l+v ~ Cb r-td:~e lk B~ ,..f)i!. • ~$fbl\><' .b Cw d C(;, M ~ e "-b ( Glf.<) pf'('.: I 1 M t ~ Op t ,., r a "' c.f-f'r-o ~et. b I c ~n s~vchol) Gis-r ( C L..f.<.) I s<l" Pra1A~s0 C41cu l4..hot1S (cu<.) ~· ::.·· ~ =-. ---· .. y o u... COLLEGE STATION P. 0. Box 9960 September 10, 1999 Mr. Curtis Burnett Cobourn, Linseisen, & Ratcliff 13100 Northwest Frwy Suite 500 Houston, TX 77040 Re : Final Drainage Report Rock P~rie Crossing Shopping Center Mr. Burnett,. 1101 Texas Avenue Tet. 409 764 3500 College Station , TX 77842 This is in response to the final drainage report submitted August 30, 1999, for the above- mentioned project. On April 1, 1999 a meeting was held between your staff, TxDOT Area Engineer's staff, and City staff to discuss methods of handling stormwater runoff from this site. That meeting concluded the necessity of either providing onsite detention or demonstrating that the increases in stormwater runoff would not produce any adverse impacts to downstream property owners (including TxDOT structures). The second option would require a detailed analysis of the downstream effects . In July we received a report which stated that detention was not required, but no impact analysis of the downstream system was included . The impact analysis or a detention analysis was requested in response to this report. Subsequent phone conversations with you indicated that you would be providing detention within the parking lot and stormsewer pipe . In addition, the area south of the Kroger building showed detention ponding areas . A TxDOT utility permit was issued with the assumption that on-site detention was being provided. The final drainage report, which was received last week, continues the concept of not providing onsite detention . However, this report still does not include an impact analysis with demonstrates that the development is not "dangerous to health, safety, or property by causing increases in water surface elevation, velocities, or flow rates". Although this site alone may only slight impact on stormwater flows, the cumulative effect of multiple developments discharging fully developed flows may have a very significant impact. This is the primary issue that needs to be addressed . In addition, we will be issuing comments regarding the water line, grading, and other portions of the drainage report in the next few days , which must be resolved prior to issuance of a development permit. Please provide along with the impact analysis , a letter fromTxDOT accepting fully developed flows into their R .O.W. Home of Texas A&M University It has been brought to my attention that the contractor is currently proceeding with construction of the stonnsewer system without a permit. This work is being pursued at your own risk . Work should not extend into TxDOT R.O .W . at this time. Inspections of the water lines can not be done prior to final approval of plans and imperious cover may not be placed on the site until the final development permit is issued. If you have any questions, or need further information, please feel free me at (409) 764-3570 . Sincerely, /}&/i;T~ Acting Asst. City Engineer Cc: Dan Muniz.a, Center America Property Trust Via fax: (713) 349-0901 Raymond Suarez, Osborn & Vane Architects Via fax: (713) 781-5347 Patrick Williams, P.E., Area Engineer, TxDOT Via fax: (409) 778-2165 Case file # 99-404 Development permit file .. FACSIMILE ·coVER SHEET DATE : q/10,lqq CITY OF COLLEGE STATION DEVELOPMENT SERVICES 1101 South Texas Avenue, P.O. Box 9960 College Station, Texas 77842 Phone (409) 764-3570 Fax (409) 764-3496 #PAGES INCLUDING COVER 3 If you did not receive a complete fax,_please call our office immediately for a new transmittal. TO: OAvi Av"",·'Z~ COMPANY: DEPARTMENT: PHONE: FAX: ¢!.rs) 3.'.i~ -09_6 l FROM: :Ie £ £ Toho( re. , P.£. REMARKS : D Urgent D For your review D Reply ASAP D Please Comment Rock pi'.:.tl; (!'(... e Vv~~,'11 "'-..s 09 /10 /99 15:48 'B409 764 3496 DE VELOPMENT SVCS TR AN SMISSIO N OK TX/RX NO. CO NNE CTIO N TEL CO NN ECTIO N ID STA RT TIME USAGE TIME PAGES RESULT *************************** *** ACTI VITY REPOR T *** *************************** 9070 17133490901pp152 09 /10 15:46 01 '15 3 OK ~001 FACSIMILE ·cov ER SHEET TION CITY OF COLLEGE STA: ES .0. Box 9960 DEVELOPMENTSERVIC 1101 South Texas Avenue, P College Station, Texas 7784 Phone (409) 764-3570 Fax 2 (409) 764-3496 DATE: Cf/!o/qq #PAGES INCLUDING COVER ~ If you did not receive a complete fax.please call our office immediately for a new transmittal. TO: Re...~ MO "'cl s v 'i.t .t :z. ~ COMPANY: . (> sho 11 "' d-1/1.."""~ DEPARTMENT: --------------- -5J</7 PHO NE: ----------FAX: (7t5j 71 / FROM: :l"e £ £ To no( re. , P.£. -3<}_ 9..~ REMARKS: 0 Urgent D For your review D Reply ASAP D Please Comment R tx. k Pv a.: vc.. 09 /10 /99 15:25 ti'409 764 3496 DEVELOPME NT SVCS TRA SMI SSIO OK *************************** *** ACTI VITY REPORT *** *************************** TX/RX NO. 9067 CO NNE CTIO N TEL CONNECTION ID START THIE USAGE TIME PAGE S RES ULT 137815347pppl52 OSBOR N & VA E. 09 /10 15:24 01 '27 3 OK ~001 FACSIMILE ·COVER SHEET CITY OF COLLEGE STATION DEVELOPMENT SERVICES 1101 South Texas Avenue, P.O. Bo x9960 College Station, Texas 77842 Phone (409) 764-3570 Fax (409) 7 64-3496 DATE: q/;0 1 /qq #PAGES INCLUDING COVER ~ nsmitta/. If you did not receive a complete fax, please call our office immediately for a new tra TO: c::.i v-ft 's ~u Vrt' -r-f COMPANY: C. . -----=------------------- DEPARTMENT: PHONE: (:zr~)-~-~-2 -_ 6-99_J ____ FAX_:_tz_r_s0-'l,-2-~-'l-7-l z FROM: :re £ £ Toho( re. , P.£. - FAX: {l/1J1) ?:zt/-3'/ 9.~ REMARKS : 0 Urgent D For your review D Reply ASAP DP lease Comment -~~ ~ -09 /10/99 15:22 ti'409 764 3496 DEVELOPMENT SVCS TRA SMI SS IO N OK TX /RX NO. CO ECTION TEL CO NNECT ION ID START TIME USAGE THIE PAGES RES ULT *************************** *** ACTIVITY REPORT *** *************************** 9066 134622732ppp152 09 /10 15:21 01 '04 2 OK ~001 Oct-19-99 02:20pm From-CL R +7134622732 T-830 P.02/02 F-865 PRELIMINARY OPINION OF PROBABLE CONSTRUCTION COST PROJECT NAME: Rock Prairie Crossing -Public Waterline 98-057-00 TYPE SYSTEM: 8" Waterline DATE: ~-----------~-~ August 13, 1999 PRELIMINARY REVISED BY: DV -------- FINAL CKD: CRB --- ITEM UNIT TOTAL NO. DESCRIPTION UNIT QUANTITY PRICE 1 8" P.V.C. DR-18, CL 200 L.F. 1,190 16.00 19,040.00 2 12" Steel Casing L.F. 190 120.00 22,800.00 3 8" Waterline AuQer LF. 190 55.00 10,450.00 4 6" P.V.C. DR-18. CL 200 L.F. 535 14.00 7,490.00 5 SoddinQ S.Y. 45 4 .00 180.00 6 8" Gate Valve W/ Box EA . 3 500.00 1,500.00 7 6" Gate Valve W/ Box E.A. 3 400.00 1,200.00 8 Trench Safety {5' -10') L.F. 1700 1.00 1,700.00 9 F.H. Assembly W/ Valve 4' Bury EA. 5 1,500.00 7,500.00 10 Fill & Compact C .Y. 36 6 .00 216.00 ~1 8"x8" Tapping Sleeve & Valve W/ Box -:=A . 4 1,800.00 7,200 .00 12 a· Wet connection EA. 4 1 000.00 4,000.00 13 Extra Ductile Iron Fittinqs TON 1.7 2,500.00 4,250.00 14 Traffic Control LS . -500.00 500.00 SubTotal · ~,,, -..:t. OF 1'~ \,,_ 88 026.00 Contingency (20%) ti"-~···+···· •*·· . ~t~·~~ ·.ta: 17,605.20 .. , .................... ••• :.: •• j ~ f. H. HADFORD It 105,631.20 Total ~ .. , .................. ,......_ .... .... ... - ··~·.,~,. ......... ~ l'4!.J ~··· ~~· ~ Oct-19-99 02:20pm Frorn -C 1. R +7134622732 T-830 P.02/02 F-865 PRELIMINARY OPINION OF PROBABLE CONSTRUCTION COST PROJECT NAME: Rock Prairie Crossing-Public Waterline 98-057-00 TYPE SYSTEM : 8" Waterline ~--------------- DATE: --------August 13, 1999 PRELIMINARY REVISED BY: DV ------ FINAL CKD: CRB ---- ITEM UNIT TOTAL NO . DESCRIPTION UNIT QUANTITY PRICE 1 8" P .V .C . DR-18, CL 200 L.F . 1.190 16.00 19,040.00 2 12" Steel Casing L.F. 190 120.00 22 ,800.00 3 8" Waterline AuQer L.F. 190 55.00 10,450.00 4 6 " P.V.C. DR-18. CL 200 L.F . 535 14.00 7,490.00 5 Soddi ng S.Y. 45 4 .00 180.00 6 an Gate Valve W/ Bo)( EA. 3 500 .00 1,500.00 7 6" Gate Valve W/ Box E.A. 3 400.00 1,200.00 8 Trench Safety (5 ' -10') L.F. 1700 1.00 1,700.00 9 F.H. AssemblyW/Valve4' Bury EA. 5 1,500.00 7,500.00 10 Fill & Compact C.Y. 36 6.00 216.00 11 8"x8" Tapping Sleeve & Valve WI Box EA . 4 1,800.0 0 7,200.00 12 8" Wet connection EA. 4 1,000.00 4,000.00 13 Extra Ductile Iron Fittinqs TON 1.7 2 ,500.00 4 ,250.00 14 Traffic Control LS . -500 .00 500.00 SubTotal · ~~> \,, 88 026 .00 Conti ngency (20%) ~~;:.···+··· , '*. .... ·:?~·~~ . ... 17,605 .20 ~ ···r 1r·HADFORii9 ........ ,,, 105,631.20 Total lj ~·~1 ...... ··:~:-9~ .......... j '• "'i#,i.!ti ____ ~.~~.J Oct-19-99 02 :20pm From-CL R +7 134622732 T-83 0 P.02/02 F-865 PRELIMINARY OPINION OF PROBABLE CONSTRUCTION COST PROJECT NAME: Rock Prairie Crossing -Public Waterline 98-057-00 TYPE SYSTEM: 8" Waterline DATE : ~--------------------~~--~ August 13, 1999 PRELIMINARY REVISED -------BY: DV FINAL CKD: CRB -- ITEM UNIT TOTAL NO. DESCRIPTION UNIT QUANTITY PRICE 1 8" P .V.C. DR-18, CL 200 L.F . 1,190 16.00 19 ,040.00 2 12" Steel Cas inQ L.F. 190 120.00 22 ,800 .00 3 8" Waterline Auger L.F . 190 55 .00 10,450.00 4 6" P.V .C. DR-18. CL 200 L.F . 535 14.00 7,490.00 5 Soddi ng S.Y. 45 4 .00 180.00 6 8" Gate Valve W/ Box EA. 3 500 .00 1,500.00 7 6" Gate Valve W/ Box E.A. 3 400.00 1,200.00 8 Trench Safety (5' -10') L.F. 1700 1.00 1,700.00 9 F .H . Assembly W/ Valve 4' Bury EA. 5 1,500.00 7 ,500 .00 10 Fill & Compact C.Y. 36 6.00 216.00 11 8"x8" Tappinq Sleeve & Valve WI Box EA 4 1,800 .00 7 ,200 .00 12 8" Wet connect ion EA. 4 1,000.00 4,000.00 13 Extra Ductile Iron Fittinqs TON 1.7 2,500.00 4 ,250.00 14 Traffic Control LS . -500.00 500.00 SubTotal · ~~> ,,, 88 ,026 .00 Contingency (20%) ~~~···+··· •• *_.. . ·~~·~~ ·.• 17,605 .20 ~ ···r;rwADFORD 0 •••••••• 'II , 105,631.20 Tota l ...... , .............. _ .. ~.···· I~. -- '• ~ ... ~1, -• ---~ _,·~; :ii!'• ~~-~ (LR Cobourn Linseisen & Ratcliff, Inc. SEPTEMBER 18 , 1999 METES AND BOUNDS DESCRIPTION OF A 0 .011 ACRE TRACT IN THE ROBERT STEVENSON LEAGUE , ABSTRACT NO . 54 IN COLLEGE STATION, BRAZOS COUNTY , TEXAS Being a 0.011 acre (470 square feet) tract of land in the Robert Stevenson League, Abstract Number 54 in College Station, Brazos County, Texas, and also being a portion of Proposed Lot 1, Block 2 , L.O . Ball Memorial Subdivision Phase II (called 12.55 acres), said 0.011 acre being more particularly described by metes and bounds as follows with all bearings based on L. 0 . Ball Memorial Subdivision as recorded by deed in Volume 2555, Page 313 of Brazos County Deed Records (B.C.D.R.): COMMENCING at a 1/2 inch iron rod found for the intersection of the southwesterly right-of-way line of State Highway Number 6 (variable width) and the northwesterly right-of-way line of Birmingham Drive (60 feet width); THENCE South 56 degrees 19 minutes 13 seconds West, a distance of 224 .87 feet along the northwesterly right-of-way line of said Birmingham Drive and along the southwesterly line of a said 12.55 acre tract, to the POINT OF BEGINNING; THENCE South 56 degrees 19 minutes 13 seconds West, a distance of 10.00 feet continuing along the common line of said 12.55 acre tract and the northwesterly right-of-way line of said Birmingham Drive , to a point for the southwest corner of the herein described tract; THENCE North 33 degrees 40 minutes 47 seconds West, a distance of 47.00 feet departing the common line of said 12.55 acre tract and the northwesterly right-of-way line of said Birmingham Drive, to a point for the northwest corner of the herein described tract; THENCE North 56 degrees 19 minutes 13 seconds East, a distance of 10 .00 feet to a point for the northeast corner of the herein described tract; 98-057-00 0 .01 lacre waterline easement Civil Engineers • Architects • Surveyors • Planners 13100 lortlnrest Fwy , S.ite 500, Ho.sto., Tuu 77040 PlloH: (713) 462-0993 • Fu: (713) 46Z·Z73Z Page I of2 CLR Cobourn Linseisen & Ratcliff, Inc. SEPTEMBER 18 . 1999 METES AND BOUNDS DESCRIPTION OF A 0 .011 ACRE TRACT IN THE ROBERT STEVENSON LEAGUE. ABSTRACT NO . 54 IN COLLEGE STATION, BRAZOS COUNTY , TEXAS Being a 0.011 acre (470 square feet) tract of land in the Robert Stevenson League, Abstract Number 54 in College Station , Brazos County, Texas, and also being a portion of Proposed Lot 1, Block 2, L.O . Ball Memorial Subdivision Phase II (called 12.55 acres), said 0.011 acre being more particularly described by metes and bounds as follows with all bearings based on L. 0. Ball Memorial Subdivision as recorded by deed in Volume 2555, Page 313 of Brazos County Deed Records (B .C.D.R.): COMMENCING at a 1/2 inch iron rod found for the intersection of the southwesterly right-of-way line of State Highway Number 6 (variable width) and the northwesterly right-of-way line of Birmingham Drive (60 feet width); THENCE South 56 degrees 19 minutes 13 seconds West, a distance of 224.87 feet along the northwesterly right-of-way line of said Birmingham Drive and along the southwesterly line of a said 12.55 acre tract, to the POINT OF BEGINNING; THENCE South 56 degrees 19 minutes 13 seconds West, a distance of 10.00 feet continuing along the common line of said 12 .55 acre tract and the northwesterly right-of-way line of said Birmingham Drive, to a point for the southwest corner of the herein described tract; THENCE North 33 degrees 40 minutes 47 seconds West, a distance of 47.00 feet departing the common line of said 12.55 acre tract and the northwesterly right-of-way line of said Birmingham Drive, to a point for the northwest corner of the herein described tract; THENCE North 56 degrees 19 minutes 13 seconds East, a distance of 10.00 feet to a point for the northeast corner of the herein described tract; 98-057-00 0.01 lacre waterline easement Civil Engineen • Architects • Surveyon • Plannen 13100 lort .. est Fwy, S.ite 500, Houtoe, Tuu 77040 PllHe: (713) 462·0993 • Fu: (713) 462·2732 Page I of2 THENCE South 33 degrees 40 minutes 47 seconds West, a distance of 47.00 feet, to the Point of Beginning and containing 0.011 acre (470 square feet) of land. 98-057-00 0 .01 lacre waterline easement Page 2 of2 ClR Cobourn Unseisen & Ratcliff, Inc. CLR Cobourn Linseisen Ir Ratcliff, Inc. SEPTEMBER 18 , 1999 METES AND BOUNDS DESCRIPTION OF A 0.037 ACRE TRACT IN THE ROBERT STEVENSON LEAGUE, ABSTRACT NO. 54 IN COLLEGE STATION , BRAZOS COUNTY , TEXAS Being a 0.037 acre (1 ,614 square feet) tract of land in the Robert Stevenson League, Abstract Number 54 in College Station , Brazos County , Texas , and also be ing a portion of Proposed Lot 1, Block 2 , LO. Ball Memorial Subdivision Phase II (called 12.55 acres), said 0.037 acre being more particularly described by metes and bounds as follows with all bearings based on LO. Ball Memorial Subdivision as recorded by deed in Volume 2555 , Page 313 of Brazos County Deed Records (B .C.D .R.): COMMENCING at a 1/2 inch iron rod found for the intersection of the southwesterly right-of-way line of State Highway Number 6 (variable width) and the northwesterly right-of-way line of Birmingham Drive (60 feet width); THENCE South 56 degrees 19 minutes 13 seconds West, a distance of 718.01 feet along the northwesterly right-of-way line of said Birmingham Drive and along the southwesterly line of a said 12.55 acre tract, to the POINT OF BEGINNING; THENCE South 56 degrees 19 minutes 13 seconds West, a distance of 10.00 feet continuing along the common line of said 12.55 acre tract and the northwesterly right-of-way line of said Birmingham Drive, to a point for the southwest comer of the herein described tract; THENCE North 33 degrees 40 minutes 47 seconds West, a distance of 152.27 feet departing the common line of said 12.55 acre tract and the northwesterly right- of-way line of said Birmingham Drive , to an angle point of the herein described tract; THENCE North 11 degrees 19 minutes 13 seconds East, a distance of 13.30 feet to a point for the northwest comer of the herein described tract ; THENCE South 78 degrees 40 minutes 47 seconds East, a distance of 10.00 feet to a point for the northeast comer of the herein described tract; THENCE South 11 degrees 19 minutes 13 seconds West , a distance of 9.16 feet to an angle point of the herein described tract; 98 -057-00 0.037 acre waterline easement Civil Engineers • Architects • Su"eyors • Pl~nners 13100 Mortllwest Fwy, S.lte 500, H011stu, Te1u 77040 Pllo .. : (713) 46Z·0993 •Fu: (713) 46Z·Z73Z Page l of2 THENCE South 33 degrees 40 minutes 47 seconds East, a distance of 148.13 feet to the Point of Beginning and containing 0.037 acre (1,614 square feet) of land. 98-057-00 0.037 acre raasement Page 2 of2 Cobourn Unseisen & Ratcliff, Inc. CLR Cobourn Linseisen & Ratcliff, Inc. SEPTEMBER 18 , 1999 METES AND BOUNDS DESCRIPTION OF A 0.037 ACRE TRACT IN THE ROBERT STEVENSON LEAGUE, ABSTRACT NO. 54 IN COLLEGE STATION , BRAZOS COUNTY , TEXAS Being a 0 .037 acre (1 ,614 square feet) tract of land in the Robert Stevenson League , Abstract Number 54 in College Station , Brazos County, Texas, and also being a portion of Proposed Lot 1, Block 2, LO. Ball Memorial Subdivision Phase II (called 12.55 acres), said 0.037 acre being more particularly described by metes and bounds as follows with all bearings based on L.O. Ball Memorial Subdivision as recorded by deed in Volume 2555 , Page 313 of Brazos County Deed Records (B .C.D.R .): COMMENCING at a 1/2 inch iron rod found for the intersection of the southwesterly right-of-way line of State Highway Number 6 (variable width) and the northwesterly right-of-way line of Birmingham Drive (60 feet width); THENCE South 56 degrees 19 minutes 13 seconds West, a distance of 718.01 feet along the northwesterly right-of-way line of said Birmingham Drive and along the southwesterly line of a said 12.55 acre tract, to the POINT OF BEGINNING; THENCE South 56 degrees 19 minutes 13 seconds West, a distance of 10.00 feet continuing along the common line of said 12.55 acre tract and the northwesterly right-of-way line of said Birmingham Drive, to a point for the southwest comer of the herein described tract; THENCE North 33 degrees 40 minutes 47 seconds West, a distance of 152.27 feet departing the common line of said 12 .55 acre tract and the northwesterly right- of-way line of said Birmingham Drive , to an angle point of the herein described tract; THENCE North 11 degrees 19 minutes 13 seconds East, a distance of 13.30 feet to a point for the northwest comer of the herein described tract; THENCE South 78 degrees 40 minutes 47 seconds East , a distance of 10.00 feet to a point for the northeast comer of the herein described tract; THENCE South 11degrees19 minutes 13 seconds West, a distance of 9.16 feet to an angle point of the herein described tract; 98-057-00 0.037 acre waterline easement Civil Engineers • Architects • Surveyors • Pl~nners 13100 •ortltwest Fwy, S.it• 500, H011stot1, Tuas 77040 ,~o••: (713) 462-0993 • Faa: {713) 46Z-Z73Z Page l of2 THENCE South 33 degrees 40 minutes 47 seconds East, a distance of 148 .13 feet to the Point of Beginning and containing 0.037 acre (1,614 square feet) of land. 98-057-00 0 .037 acre ll)easement Page 2 of2 Cobourn Unseisen & Ratcliff, Inc.