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Home My WebLink About104 Development Permit 458 Pleasant Forest Subdivision> > HESTER ENGINEERING COMPANY 7607 Eastmark Drive Suite 250 COLLEGE STATION, TEXAS 77840 PHONE (409) 693-1100 FAX (409) 693-1075 TO Cs. ~.~t S:w - WE ARE SENDING YOU ~ Attached 0 Under separate cover via __________ the following items : 0 Shop drawings 0 Copy of letter 0 Prints 0 Change order 0 Plans 0 Samples 0 Specifications 0 COPIES DATE NO. / \DESC RIPTION I ~,hh THESE ARE TRANSMITIED as checked below : 0 For approval ~ For your use 0 As requested ( ~r'r-fi A ( u· l 0 Approved as submitted 0 Approved as noted - 0 Returned for corrections DJ Ah 0 u/),/) -ir - - 0 Resubmit ____ copies for approval 0 Submit ____ copies for distribution 0 Return ____ corrected prints 0 For review and comment 0 --------------------------- 0 FOR BIDS DUE-----------19 __ _ 0 PRINTS RETURNED AFTER LOAN TO US COPY TO _____________________ _ .... CL-PL-fA5ANf fORf 5f t?RIVf CL-PL-fA5ANf c::iROVf t?RIVf 9661 '9 AC:Wn~~;Jd JVS-;1t1-1nJ NI MIJVdVJ f:l~nJ NOISl/\ICJ~ns JS;l~Od JNVSV~1d 0'01- O'I 0'01 GRADE 1 /4" R 3 /4" SMOOTH DOWEL BAR #4X 18" LONG, 1 2 " O .C. T NON-EXTRUDING FILLER II" PLASTI C SLEEVE T Y PE "G" EXPANSION & CONS TRU C TION JO I NT 12" 1-1 / 2" 6" _['" 2 '-0" L-AYDOWN CURB N~5o 3 /8 "R 1 1 /2" SAWED OR ,FC WITH JOINT II.I 1 /8 " T O 3 /1 NO. 4 BAR S 18" C. T O C. BOTH\ T Y PE "8" DUMM Y JOINT N011::: 'fat" Of C~ 15 0 .10fE:E:'f1:3E:L..OW 11-f: 'fat" Of PAV!::ME:N-r Al" 11-f: CE:Nl"E:R L..INE: Of 11-f; ~E:'f5 . fHE: 'fat" Of C~5 ON 11-f: PL-AN ANI/ Pl<Of ll-E: 51-f:E:'f5 5HAl.-L.. BE: RE:l/U::W BY 0 .1 fE:E:L .BUf!He 'fat" Of PAV!::ME:N'f M !He CE:Nl"E:R L..INE: 5HAl.-L.. RE:MAJN 11-f: 5AME: t:L..t:VA110N ..... LAYOOWN C:URB n Project Description LAYDOWN CURB WORKSHEET Worksheet for Irregular Channel Project File c:\haestad\fmw\schieff.fm2 Worksheet LA YDOWN CURB Flow Element Irregular Channel Method Manning's Formula Solve For Water Elevation Input Data channel slope 0.005000 ft/ft ~ Elevation range : 0.00 ft to 1.41 ft . ;--z_ LM I~ ~p~ Station (ft) Elevation (ft) Start Station • End Station 0.00 1.41 0.00 2.00 2.00 1.12 2.00 6.00 6.00 0.92 6.00 10.00 10.00 0.41 10 .00 50.00 11.00 0.13 11.00 0.00 50.00 0 .50 Discharge 8.93 cfs Results Wtd . Mannings Coefficient Water Surface Elevation Flow Area Wetted Perimeter Top Width Height Critical Depth Critical Slope Velocity Velocity Head Specific Energy Froude Number Flow is subcritical. 0.018 0.35 ft 4.92 ft2 28.42 ft 28.26 ft 0.35 ft 0.32 ft 0.008829 tuft 1.81 fUs 0.05 ft 0.40 ft 0.77 Roughness 0.030 0.013 0.030 0.018 02/06 /9 8 08 :24 :31 AM Haestad Methods , Inc . 37 Brookside Road Waterbury , CT 06708 (203) 755-1666 FlowMaster v5 .1 3 Page 1 of 1 LAYDOWN CURB RATING TABLE Rating Table for Irregular Channel Project Description Project File c:\haestad\fmw\schieff.fm2 Worksheet LA YDOWN CURB Flow Element Irregular Channel Method Manning's Formula Solve For Water Elevation Constant Data channel slope Input Data Discharge Rating Table Discharge (cfs) 0 .00 0.50 1 .00 1 .50 2.00 2 .50 3.00 3.50 4.00 4.50 ~SfoC 5 .00 ~T~5.5o ~m-GpiC~.00 6.50 ~ c;tPC -?7.00 ~~7.50 8.00 ~ <;t~C 8.50 'C,4 ..... 11..&.,.,. , _._ -?-9. 00 -..-.. ~vt. 9.50 10.00 0.005000 ftift ~ Minimum Maximum 0.00 10 .00 Wtd . Mannings Coefficient 0.018 0.018 0.018 0.018 0 .018 0 .018 0.018 0.018 0 .018 0.018 0.018 0.018 0 .018 0.018 0 .018 0.018 0 .018 0.018 0.018 0.018 0.018 Increment 0.50 cls Water Surface Elevation (ft) NIA 0 .12 0 .16 0 .18 0.20 0.22 0.23 0.25 0 .26 0.27 0 .28 ~0.29 0 .30 0.31 ~0.32 0.33 0.34 0.35 ~0.35 0.36 0.37 Velocity (ft/s) 0 .00 0 .89 1.05 1.16 1 .25 1.32 1.38 1.44 1.48 1.53 1.57 1.61 1.64 1.68 1.71 1.74 1.76 1.79 1.82~1AA..tv rr..dh 184 h , .. ~. ~· 1:81 ~to ,. o.~/ e! ~~,..-,.~of" e.6% 02/06 /98 08 :25 :20AM Haestad Methods , Inc . 37 Brooks ide Road Waterbury , CT 06708 (203) 755-1666 FlowMaster v5 .13 Page 1 of 1 LAYDOWN CURB WATER SURFACE ELEVATION Cross Section for Irregular Channel Project Description Project File c :\haestad\fmw\schieff.fm2 Worksheet LA YDOWN CURB Flow Element Method Irregular Channel Manning's Formula Water Elevation Solve For • ectron Data ~ Vv\c~ • Cot'lsirocko SLC>ft ---:"'l""l':""d~.TMTa_n_n~rn_g_s~~,,........-~~rTT8~~..,.. ~-~ ~. Channel Slope o:oosooo ft/ft~~ .J.-<.t"' v• ~ ~o Water Surface Elevation 0.35 ft ~ -"' _D_isc_h_ar .... ge ______ a_.9_3 __ c_fs_~..,_-~o -~TH S\~ P£a.s~ ~Vt:. 1. g 1.0 c .Q 0 .8 -nJ > Q) w 0 .6 0.4 0 .2 ------T---------,----------.----------r---------T---------,---------,----------r---------T---------, 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 ~~~A~~I I I I I I I I I ''-r ·~ I I I I I I I I ---------~----------'----------L---------L---------~---------~----------L---------L---------~ 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 ----------------,---------,----------r---------r---------,-------1-,----------r---------r--------··, I I I t1'6JC I ws.E. I ~ I do: I I I ---------1--------l----------1--~-----~-~-~-----·-----.:::._J~~---~-j-----~--~---------l---------l I I I I I I I I I : : : , bl,o = :2' .. Cf~Cf=S : : : : ---------~--------~----------'--------L---------~---------~---------~----------L---------~---------~ 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 9 1 : I I I I I I I I ---------T----------------.,----------r-------------,---------~----------r---------T---------, I I I I I I I I I /-.~Cl. I I I I I I I 0 .0 0 .0 ~P-L1 I I I I I I 5 .0 10 .0 15 .0 20 .0 25 .0 Station (ft) 30 .0 35 .0 40 .0 45 .0 50 .0 02/06/98 08 :22 :58 AM Haestad Methods , Inc. 37 Brookside Road Waterbury , CT 06708 (203) 755-1666 FlowMaster v5 .13 Page 1 of 1 FEE-~2-1998 15:16 FROM HESTER ENGINEERING CO. TO LA YDOWN CURB WORKSHEET Worksheet for Irregular Channel Project Description Project File c:\haestad\fmw\schieff.fm2 Worksheet LA YDOWN CURB Flow Element Irregular Channel Method Manning's Formula Solve For Water Elevation Input Data ~ Channel Slope 0 .005000 fUft~ Elevation range : 0 .00 ft to 1.41 ft . Station (ft) Elevation (ft) Start Station 0 .00 2.00 6.00 0 .00 1.41 2 .00 1.12 6 .00 0.92 10.00 0.41 10.00 11 .00 0 .13 11 .00 0 .00 £). 50.00 0 .50 / ~00 Discharge 12.00 cfs IC ~~--..-..------------------------~ Results . anrnngs oe 1c1ent Water Surface Elevation Flow Area Wetted Perimeter Top Width Height Critical Depth Critical Slope Velocity Velocity Head Specific Energy Froude Number Flow is subcritical. . 1 0.39 6.14 ft 2 31.76 ft 31.59 ft 0.39 ft 0.36 ft 0.008485 ft'ft 1.95 ft's 0.06 ft 0 .45 ft 0.78 End Station 2 .00 6.00 10.00 50.00 ~:CV4- CS ENGR. P.01 Roughness 0 .030 0 .013 0 .030 0.018 :o.s ll-~ z.07 02/12/98 OB :OB :05AM = l'2.,01C~ Haestad Methods. Inc. 37 Brookside Road Waterbury . CT 06708 (203) 755-1666 FlowMaster v5.13 Page 1of1 ~EB-12 -1998 15:15 FROM HE STER ENGINEE RING CO. TO LAYDOWN CURB RATING TABLE Rating Table for Irregular Channel Project Descnphon Project File c:\haestad\fmw\schieff. fm2 Worksheet LA YDOWN CURB Flow Element Irregular Channel Method Manning's Formula Solve For Water Elevation Constant Data Channel slope o.oosooo ft/ft Input Data -Oischarge Rating Table Discharge (cfs) 0 .00 1 .00 2 .00 3 .00 4 .00 5.00 6 .00 7 .00 8 .00 Minimum Maximum 0.00 12 .00 wtd . Mannings Coefficient 0 .018 0 .018 0.018 0 .018 0 .018 0.018 0 .018 0 .018 0 .018 Increment 1.00 Cfs Water Surface Elevation (ft) N/A 0 .16 0 .20 0.23 0 .26 0.28 0.30 0 .32 0.34 '<-•• "9.00 0 .018 .... ~ • r0 .35 10.00 11 .00 ~co~~ 0 .018 0 .018 0 .018 ....... 0.37 0 .38 • • .. 0.39 - Velocity (ftls) 0 .00 1 .05 1.25 1.38 1.48 1.57 1.64 1 .71 1 .76 1.82 1.87 1 .91 1.95 0211V98 08 :08 :34AM Haestad Methods , Inc . 37 Brooks ide Road Waterbury , CT 06 706 (203) 755-i 666 CS ENGR. P.02 1 :: 0. D~ FlowMa ster v5 . i 3 Pag e 1 of1 0 ;) ..J LAYDOWN CURB WATER SURFACE ELEVATION Cross Section for Irregular Channel Project Description Project File c:\haestad\fmw\sch1eff . fm2 Worksheet lA YDOWN CURB Flow Element Irregular Channel Method Manning's Formula Solve For Water Elevation Section Data Wid . Mannings Coefficient 0.018 Channel Slope 0.005000 ft/ft~~--- Water Surface Elevation 0.39 ft , . .....!:D~is~c~ha~r~g~e~~~~~~-1~2~.0~0:!.....~~ct~s~(:'.e==---·~e>c.:> ~(. n C" fZl:3> 1.6 1. g 1.0 6 0 .8 +;; m > QJ w 0 .6 0.4 ---------r---------,----------,----------r---------r---------,---------~----------r---------T---------, O-I I I I I I I I I I ......,w 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 t I I I I I I I I ------~-------~----------1----------L---------L---------J---------~----------L---·-----L---------j I I I I I I I I I ~~h•~~·~ I I I I I I I I I "'t -~-.... I I I I I I I I I I I I I I I I I I ---------,---------~----------r---------r---------i---------~----------r---------r---------, I I I I I I I 14:1~ I I • I • I I • CUL ... t::ie' I I I I I I I I ---------r--------1----------:----------r---------r---------1----------:----------r------S1'f::--------1 I I I I I I I I I I I I I I I I I I I I ---------L--------~----------'----------L---------L---------~---------~----------L---------~---------~ I I ,JI')~· I I I I I I I I I ..... J ::;;i"!"'1' I I /-a-_ I I I I I I I I 1~-.W I I I I ---------+---·-----W I •----------~ :i:~rz : 0 .2 t~-~-~-~-~-~-~-~-~-1r~-~-~-~-~-~-~-:-:-~,1:-~-~-~-~-~-~-~-j~~-~-;-;-~-~-=-=-:-1r=-=-=-=-=-~-~-~-:-:;t-~~~:-:-:-J,l-:-:-:-~-~-~-~-~-~~1·-~-~-~-~-~-~-~-~-~-tr~-~-~-~-~-~-~-~-~-jy~-~-~-~-~-~-~-~-~-~1 I I I I 0 .0 02/12196 08 :08 :59AM 0 .0 5 .0 10.0 15.0 20.0 25.0 Station (ft) 30 .0 35 .0 Haestad Methods , Inc . 37 Brnokside Road Waterbury , CT 06708 (203) 755-1666 40.0 45 .0 50 .0 FlowMaster v5 .13 Page 1of1 .,, m tu I ~ l\J I ~ UJ UJ co ,, ;u D 3 I m (f) -l m ;u m z G1 z m m ;u z G1 n D -l D n (f) m z G1 ;u > > / HESTER ENGINEERING COMPANY 7607 Eastmark Dr ive Suite 250 COLLEGE STATION , TEXAS 77840 PHONE (409) 693-1100 FAX (409) 693-1075 80. WE ARE SENDING YOU ~ Attached D Under separate cover via __________ the follow ing items: COPIES D Shop drawings D Copy of letter DATE D Prints D Plans D Change order NO. THESE ARE TRANSMITIED as checked below : D For approval ~ For your use D As requested D Approved as submitted D Approved as note d D Returne d for correctio ns D Samples D Specifications DESCRIPTION D Resubmit ___ copies for approval D Submit ____ copies for distribution D Return ___ corrected prints D For review and comment D ------------------------- D FOR BIDS DU E-----------19 __ _ D PRI NTS RETURNED AFTER LOAN TO US COPY TO ____________________ ~ f.e. If enclosures are not as noted, kindly notify us at once. . \ OUff AL.L. ~ 5CAL.E:: 111 =200' ' . DRAINALl~ /\R f A5 f OR 5fRf f f5 01 /09 /98 Project Description . OUTFALL DITCH -PLEASANT GROVE DRIVE Worksheet for Triangular Channel Project File c:\haestad\fmw\schieff.fm2 Worksheet OUTFALL DITCH Flow Element Method Solve For Input Data Triangular Channel Manning's Formula Channel Depth Mannings Coefficient Channel Slope 0.045 2.4400 % Left Side Slope Right Side Slope Discharge Results Depth Flow Area Wetted Perimeter Top Width Critical Depth Critical Slope Velocity Velocity Head Specific Energy Froude Number Flow is subcritica l. 6.000000 H : V 6.000000 H : V 14.24 cfs 0.89 ft 4.77 ft2 10 .85 ft 10.70 ft 0.81 ft 0.040606 ft/ft 2.98 ft/s ./ 0.14 ft 1.03 ft 0.79 01 :4 9:4 0 PM Haestad Methods , Inc . 37 Brookside Road Waterbury, CT 06708 (203) 755-1666 FlowMa ster v5 .13 Page 1 of 1 Project Description OUTFALL DITCH -PLEASANT FOREST DRIVE Worksheet for Triangular Channel Project File c:\haestad\fmw\schieff.fm2 Worksheet OUTFALL DITCH Flow Element Method Solve For Input Data Triangular Channel Manning's Formula Channel Depth Mannings Coefficient Channel Slope 0.045 2.0000 % Left Side Slope Right Side Slope Discharge Results Depth Flow Area Wetted Perimeter Top Width Critical Depth Critical Slope Velocity Velocity Head Specific Energy Froude Number Flow is subcritical. 6.000000 H : V 6.000000 H: V 11 .90 cfs 0.87 ft 4.49 ft2 10.53 ft 10.39 ft 0.75 ft 0.041589 ft/ft ./ 2.65 ft/s 0.11 ft 0.97 ft 0.71 01/09/98 01:48 :56 PM Haestad Methods , Inc . 37 Brookside Road Waterbury, CT 06708 (203) 755-1666 FlowMaster v5 .13 Page 1 of 1 ..J I .JO ""35.36 ' v 66.6 7 20.41 42.06 E 20.41 E 27.24 f~ ~~ ~: 82.87 79.68 fW 43.88 I IE 68.29 I r" 93.42 ~ 86.52 IE 40.98 I I . . N 5 0 6 SF . , 4 ASMEN T "\ DR~NAG E E ~ ."Jt>< 'Oro ~ FOREST DRI V E I TR UST E E F AZZ INO, JO E C. 455/507 2 1 .49 ACR ES / / .. E _ 15.22 s 70·01 ·1 9 r;_~ 42 .87 w -35 .00 s 19"58'06" Q)'?//) I .'V 0 0 0 p 0 _....,,. U\_, / u:>. ,,§ Cll. l? -', \ ~ \ i MINIMUM GE AND D R A I N A BLIC ACC E SS, ITY EASEMENT PU P U B LIC UTIL FF261 .10_.....,. w 10 .39 \ \ . \ ....> \ . \ \ ()l \- \ ~-~ r L 2 \ -~-~ - \ (}J \:_ TPICAL DIVISION -TO N Y MICHALSKY -764-3660 R & SEWER DIVISIO N -TONY HAWLEY -764-3660 1t.~ ~tis -~AVI~ ~O R041U G H :._ 776-1 1 34 M IKE LAVENOAR -846-2349 / LJR PROPERTIES, LTD . 1 .92 AC RES 1848/183 UNPLATTEO N 41"25'41" E -19.88 \ \ / NOTE: AUNCMENT OF SWALE / SHALL BE REAUNGEO TO MISS E XISTING LARGE TREES. NOTE: CONTRACTOR SHALL SE RESPONSIBLE FC?. ESTASUS~UNG HEAL THY G ROUND COVER ALONG PROPOSED SWALES. \ \ \ \ \ ROCK RIP RAP (CO MMON) 6-18" GRADATION TXOOT ITEM NO. 432 DRY OR AN APPROVED EOUAL PLACEMENT OF RIP RAP SHALL BE HA.NO PL.ACED ANO CONFORM TO THE ELEVATIONS SHOWN ANO THE SURROUNDING NATURAL GROUND. ESTABLISH HEAL THY GROUND COVER BY SEEDING ANO /OR SODDING I CL DITCH~ 6 =----i, I I I '\ I WATER~NE +'SIO Ew..li.K \ \ \ DITCH SECTION TO BEE CR EE K I \ \ \ \ \ HAY BALES AND SILT FENCE TO BE USED IN AREAS OF DRAINAGE FLOW. POSTS (ON STAKES) AS REOUIRED TO MAINTAIN SILT FENCING FABRIC I ( \ I ) I I I I ------/ ------7 I I NOTE: ALINGMENT OF SWALE SHALL BE REALINGEO TO MISS EXISTING LARGE TREES . I I NOTE: OUTFALL STRUCTURE SEE S HT . 6 FOR DITCH PROFILE S EE SHT. 6. X-18" SAN FILL MATERIAL UNDER ROADWAYS : COMPACTION OF FILL MATERIAL UNDER ROADWAYS SHALL BE 957. MODIFIED PER ASTM 01557 WITHIN TH( RANCE or OPTIMUM TO 4?. ABOVE: OPTIMUM MOISTURE CONTENT TO 5 FEET BEHIND THE CURB LINE. FILL MATERIAL NOT UNDER ROADWAY : \ \ \ \ \ I I I \ PLEASANT FORE ST SUBOIV I ~ _LEGE STATI O N, T X 77840 (409)693-1 1 00 f x:(409)693-1 075 PHASE ONE OVERA LL LAYOUT PL-Elt.5/t.NT FORE5T 5Ue;D/V/5/0N PROP05ED 10' e;oTT0/'1 DrrCH 5ECT/O N ocroe;ER 199-; 5Clt.L-E.' !'' =60' ·---------------··--- PREP ,AKED e>Y: t1E:5rER ENGINEERING con !60! E.A:5rt1.ARK DR/\/E, :5UITE 2'55-e> COlL.EGE :?r ,Ar/ON, rx (!84-0 <4-09)695-1100 Project Description PLEASANT FOREST 1 O' DITCH SECTION Cross Section for Irregular Channel Project File c:\haestad\fmw\schieff.fm2 Worksheet DITCH SECTION TO BEE CREEK Flow Element Method Solve For Irregular Channel Manning's Formula Water Elevation Section Data Wtd . Mannings Coefficient Channel Slope Water Surface Elevation Discharge 0.040 0.004278 ft/ft 1.93 ft 100.00 cfs ~o T~wa.~ £~ du&-+o ~ ~[£-"[Z/f;;: e 1'. ,r:;b LJl.C(,._ LS P\JT~ 1t.. $~ ~1'>1J-r~ 2 . ----------------r----------------r----------------T----------------T---------------~-(!3-~-- 1 I I I I I I w I : : : S@~:LOO I I I I 1 I I I I • I I I I I I I I I I I I I I A I I I I I ---~-':-1:------------~----------------t----------------+---------~----i--------------~ I~ I I I I I ~ 1.5 c 0 :;:; ro iii 1.0 w 0 .5 I 1 : : : 1rl I I I I I I : I I I I I I ----------------L---------------L----------------L----------------i-------------__ J ________________ J 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 ----------------L---------------L----------------L----------------i---------------l----------------~ 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 o.o---~~~~~~~--~~~~~~~---~~~~~~~~'--~~~~~~~ .......... ~~~~~~~--~~~~~~~__, 10/23/97 08 :42 :07 AM 0 .0 5 .0 10 .0 15.0 20 .0 r-A". Station (ft) ~~~~~~~{c?1 <f-i9C7CWI 771 Haestad Methods , Inc. 37 Brooks ide Road Waterbury, CT 06708 (2 03) 755-1666 25 .0 30 .0 FlowMaster v5 .13 Page 1 of 1 PLEASANT FOREST 1 O' DITCH SECTION Worksheet for Irregular Channel Project Description Project File c:\haestad\fmw\schieff.fm2 Worksheet DITCH SECTION TO BEE CREEK Flow Element Method Solve For Input Data Irregular Channel Manning's Formula Water Elevation Channel Slope 0.004278 ft/ft Elevation range : 0.00 ft to 2.50 ft. Station (ft) Elevation (ft) 0 .00 2 .50 10.00 0 .00 Start Station 0.00 End Station 30 .00 30 .00 2 .50 ~ 20.00 0 .00 J Discharge 100 .00 cfs ~~~---~~~~~~~~~~~~~~ Results Wtd . Mannings Coefficient Water Surface Elevation Flow Area Wetted Perimeter Top Width Height Critical Depth Critical Slope Velocity Velocity Head Specific Energy Froude Number Flow is subcritical. 0.040 1.93 ft~~ :=-of~ 34 .21 ft2 25 .92 ft 25.44 ft 1.93 ft 1.23 ft 0.024422 ft/ft 2.92 ft/s ~ V ro[L.. 0.13 ft 2.06 ft 0.44 Roughness 0.040 10/23/97 08:41 :40AM Haestad Methods , Inc. 37 Brookside Road Waterbury , CT 06708 (203) 755-1666 FlowMaster v5 . 13 Page 1 of 1 PLEASANT FOREST 1 O' BOTTOM DITCH Rating Table for Irregular Channel Project Description Project File c :\haestad\fmw\schieff.fm2 Worksheet DITCH SECTION TO BEE CREEK Flow Element Irregular Channel Method Manning's Formula Solve For Water Elevation Constant Data Channel Slope 0.004278 ft/ft Input Data Minimum Maximum Increment Discharge 0 .00 100.00 5.00 cfs Rating Table Water Surface D ischarge Wtd . Mannings Elevation Velocity (cfs) Coefficient (ft) (ft/s) 0 .00 0 .040 N/A 0.00 5 .00 0 .040 0.38 1.16 10.00 0 .040 0 .56 1.46 15.00 0 .040 0 .70 1.67 20 .00 0 .040 0.82 1 .83 25.00 0 .040 0 .93 1.96 30 .00 0 .040 1.03 2 .07 35.00 0 .040 1.12 2 .17 40 .00 0.040 1.20 2 .25 45 .00 0.040 1.28 2 .33 50.00 0.040 1 .35 2 .40 55 .00 0 .040 1.42 2.47 Q..6 ~60.00 0.040 1.49 2.53 65 .00 0 .040 1.55 2.59 70.00 0 .040 1.61 2 .65 75 .00 0 .040 1.67 2 .70 80 .00 0 .040 1.72 2.75 85 .00 0 .040 1 .78 2.79 90 .00 0 .040 1.83 2 .84 t>(\cO ~ 95 .00 0 .040 1.88 2 .88 100 .00 ~ 1.93 2 .92 ~~ , >zckcp l>f/ Ve? z . qz ft, 10/23/97 08 :38:07 AM \/VtoW Haestad Methods ; Inc . 37 Brooks ide Road Waterbury , CT 06708 (203) 755 -1666 !;c_, ~q~ FlowMas ter v5 . 13 Pag e 1 of 1 Quick TR-55 Ver.5.44 Executed: 08:44:40 S/N:1315430080 10-23-1997 PLASANT FOREST SUBDIVISION SECONDARY CHANNEL THROUGH SITE 77. 3 ACRES * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I * A Where: Q=cfs, C=Weighted Runoff Coefficient, I=in/hour, A=acres adj = 'C ' adjustment factor for each return frequency Subarea Descr. Runoff 'C' TOTAL AREA 0.650 Area acres 77.30 Tc (min) Wtd. 'C' 180.00 0.650 RETURN FREQUENCY = 5 years 'C ' adjustment, k = 1 Adj. 'C' = Wtd.'C' x 1 ========================= ======== Adj. I 'C' in/hr 0.650 1.200 Total acres 77.30 Peak Q (cfs) 60.29 Quick TR-55 Ver.5.44 Executed: 08:44:40 S/N:l315430080 10-23-1997 PLASANT FOREST SUBDIVISION SECONDARY CHANNEL THROUGH SITE 77. 3 ACRES * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I * A Where: Q=cfs, C=Weighted Runoff Coefficient, I=in/hour, A=acres adj = 'C' adjustment factor for each return frequency Subarea Descr. Runoff , C' TOTAL AREA 0.650 Area acres 77.30 Tc (min) Wtd. 'C ' 180.00 0.650 RETURN FREQUENCY = 10 years 'C' adjustment, k = 1 Adj. 'C' = Wtd.'C' x 1 ========================= ======== Adj. I 'C' in/hr 0.650 1.500 Total acres 77.30 Peak Q (cfs) 75.37 Quick TR-55 Ver.5.44 Executed: 08:44:40 S/N:l315430080 10-23-1997 PLASANT FOREST SUBDIVISION SECONDARY CHANNEL THROUGH SITE 77. 3 ACRES * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I * A Where: Q=cfs, C=Weighted Runoff Coefficient, I=in/hour, A=acres adj = 'C' adjustment factor for each return frequency Subarea Descr. Runoff 'C' TOTAL AREA 0.650 Area acres 77.30 Tc (min) Wtd. 'C' 180.00 0.650 RETURN FREQUENCY = 25 years 'C' adjustment, k = 1 Adj. 'C' = Wtd. 'C' x 1 ========================= ======== Adj. I 'C' in/hr 0.650 1.700 Total acres 77.30 Peak Q (cfs) 85.42 Quick TR-55 Ver.5.44 Executed: 08:44:40 S/N:l315430080 10-23-1997 PLASANT FOREST SUBDIVISION SECONDARY CHANNEL THROUGH SITE 77.3 ACRES * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I * A Where: Q=cfs, C=Weighted Runoff Coefficient, I=in/hour, A=acres adj = 'C' adjustment factor for each return frequency Subarea Descr. Runoff IC' TOTAL AREA 0.650 Area acres 77.30 Tc (min) Wtd. 'C' 180.00 0.650 RETURN FREQUENCY = 50 years 'C' adjustment, k = 1 Adj. 'C' = Wtd.'C' x 1 ========================= ======== Adj. I 'C' in/hr 0.650 1.900 Total acres 77.30 Peak Q (cf s) 95.47 , . Quick TR-55 Ver.5.44 Executed: 08:44:40 S/N:l315430080 10-23-1997 PLASANT FOREST SUBDIVISION SECONDARY CHANNEL THROUGH SITE 77. 3 ACRES * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I * A Where: Q=cfs, C=Weighted Runoff Coefficient, I=in/hour, A=acres adj = 'C' adjustment factor for each return frequency Subarea Descr. Runoff 'C' TOTAL AREA 0.650 Area acres 77.30 Tc (min) Wtd. IC' 180.00 0.650 RETURN FREQUENCY = 100 years 'C' adjustment, k = 1 Adj. 'C' = Wtd. 'C' x 1 Adj. I 'C' in/hr 0.650 2.100 Total acres 77.30 Peak Q (cfs) 105.51 -p L. ~A-NI ~e~ ( 4::>~A../t-JAC:.c p~1( HESTER ENGINEERING COMPANY CI V I L ENGINEERING SERVICES / A% 7607 EASTMARK DRIVE, SUITE 253-B vl COLLEGE STATION , TEXAS 77840 ( 409)693-1100 fx :( 409)693-1075 .. May 22, 1997 Stev e Homeyer, Development Engineer City of College Station Engineering Division P.O . Box 9960 Col l ege Station, TX 77842 Re: Pleasant Forest Subdivision Compaction Requirements Dear Steve, The Developer/Contractor for the Pleasant Forest Subdivision, Dean Schieffer, 268-8403 stated that he is experiencing difficulty passing utility trench geotechnical tests where he is required to obtain the City specification of 85% Modified Density (D 1557) between optimum and 4 percent above optimum moisture content. Apparently the moisture content of the soil in this area is quite high at this time. I have considered the problem and feel that there are two ways to resolve the situation. The first would be to physically dry the material out by "wind rowing'' it on the surface, which is extremely time consuming. The second would be to request that the City consider changing the testing specification to a Standard Density of 90%, (D 698). This specification allows for a wetter optimum moisture content and may alleviate this problem. The fundamental reason for compacting and testing utility trenches is to avoid settlement. If the trench compaction is done properly, observed by City inspection personal and tested by a Geotechnical Engineer there should be no significant settlement problems using this specification. Please consider this request and give me a call. Hester P.E. .. · .. '• 21 20 6" X45' BEND,M.J. STD. FIRE HYDRANT LINE S-2 33 -20'U.E. TO BE ABANDONED -6"SAN.SWR. TO BE ABANDONED ND FILLED WITH GROUT BY ONTRACTOR -TO THE CITIES EQUIREMENTS. 15' UTILITY en en S 48"04 '51'' E 129.46 25'R 1 O' ACCESS WAY 7.5 - --f--~----- MH#S-8 EASEMENT MH#S-5 SCALE· 1"=40' ~ . ' ACIUAJ._'f'L-ACl:::Ml:::N-r MH#? Br9r .09,?4IO.o4,fL-26?.02 s 42"02'05" w -29.50 DEVELOPMENT PERMIT PERMIT NO. 458 PLEASANT FOREST SUBDIVISION FOR AREAS OUTSIDE THE SPECIAL FLOOD HAZARD AREA RE : CHAPTER 13 OF THE COLLEGE STATION CITY CODE SITE LEGAL DESCRIPTION: Pleasant Forest Subdivision OWNER: Dean Schieffer P . 0. Box70 Kurten, Texas 77862 268-8403 DRAINAGE BASIN: Bee Creek Tributary "A", Segment I TYPE OF DEVELOPMENT: SITE ADDRESS: Not Addressed This permit is valid for site construction as shown on the approved plans. The Contractor shall take all necessary precautions to prevent silt and debris from leaving the immediate construction site in accordance with the approved erosion control plan as well as the City of College Station Drainage Policy and Design Criteria. The Owner and/or Contractor shall assure that all disturbed areas are sodden and establishment of vegetation occurs prior to removal of any silt fencing or hay bales used for temporary erosion control. The Owner and/or Contractor shall also insure that any disturbed vegetation be returned to its original condition, placement and state. The Owner and/or Contractor shall be responsible for any damage to adjacent properties, city streets or infrastructure due to heavy machinery and/or equipment as well as erosion, siltation or sedimentation resulting from the permitted work. Any trees required to be protected by ordinance or as part of the landscape plan must be completely fenced before any operations of this permit can begin. In accordance with Chapter 13 of the Code of Ordinances of the City of College Station, measures shall be taken to insure that debris from construction, erosion, and sedimentation shall not be deposited in city streets, or existing drainage facilities. I hereby grant this permit for development of an area outside the special flood hazard area. All development shall be in accordance with the plans and specifications submitted to and approved by the City Engineer in the development permit application for the above named project and all of the codes and ordinances of the City of College Station that apply. Owner/ Agent Contractor Date ACCOUNT NO . _______________ _ CITY OF co~~s ATION $ c-a_;+- RECEIVEDOF ~~ 383109 3~ / 61.Ll ,19 q,q FOR Figure Xll Development Permit City of College Station, Texas Site Legal ~tio it:+P!1.!.~"{ ~sf Site Own ~N~C~ Date Application FileJ ._-....... lfo~· <=t--1.-1-+---- s~D~ Address : ~ ~ lto ~~~ W 17~ Telephone : Z~(!) ~ !J Address]~]~ ~ • 2-5 ~ -B Telephone No '1 ~ -LtoO -f~ 1jt Address : ------------- Te I e phone No : _________ _ Application is hereby made for the following development specific waterway alterations : N/k Applicat io n Fee Signed Certifications Drainage and erosion control plan , with supporting Drainage Report two (2) copies each . Site and Construction Plans , with supporting Drainage Report two (2) copies each . Other: ------------------------------ ACKNOWLEDGMENTS : I , ~ G • ~$~ , .P~sjgn engineer/owner, hereby acknowledge or affirm that : I The information a nd conclusions contained in the above plans and supporting documents comply with the current re quirements of the City of College Station, Texas City Code, Chapter 13 and its associated Drain age Policy and D esig n Standards . As a condition of approval of this permit application, I agree to construct the improvements proposed · his application according to these documents and the requirements of Chapter 13 of the Coll ge tation City Code . Prope rty Owner(s) Contractor Figure XII Continued CERTIFICA TlONS : (for proposed alterations within designated flood hazard areas .) A. I, certify that any nonres jdentia l..s tructure on or proposed to be on this site as part of this application is designated to prevent damage to the structure or its contents as a result of flooding from the 100 year storm . Engineer Date B . I, ~~t..-G · . certify that the finished floor elevation of the lowest floor , including any basement, of an residential structure, proposed as part of this application is at or above the ase flood elevation established in the latest Federal Insurance Administration Fl od Hazar St dy and maps , as amended. ~~-ti-P.e. J. Lto ·11 E ineer Date ----- c. I , 11!.~ G, ~gi!.12 L~ Fertify that the alterations or development covered by this permit shall not diminish the floo ~-carrying capacity of the waterway adjoining or crossing this permitted site and that such alterations or development are consistent with requirements of th Cit College Station City Code, Chapter 13 concerning encroachments of flood ways and of d 10ges . ~~ f.2: Date Conditions or comments as part of approval: __________________ _ In accordance with Chapter 13 of the Code of Ordinances of the City of College Station, measures shall be taken to insure that debris from construction, erosion, and sedimentation shall not be deposited in city streets, or existing drainage facilities . I hereby grant this permit for development . All development shall be in accordance with the plans and specifications submitted to and approved by the City Engineer for the above named project. All of the applicable codes and ordinances of the City of College Station shall apply . fonnslcngl(\>cnn1tll 0-9 ) 383092 CITY OF COLLE.GE ST A TION /J $ /()(.) c~ ---5l-~~-~~· 19 4 Cb Paid by _ chec0l lS cash __ ~ T.HANKYO~ 3173 s~ $ _ro.aa '>"'~--+---'-----'-''°-------'---T--~~-=-~-cn_;r----'-----'---r--~---1-----J------'-------DOLLAR S rfl =."::' l l ' Q 1 88 -232 /113 1 DAT/,.J_' ff) • L 11 1 0 Q :l • ? :i 11 1 I: •• :i • 0 2 :l 2 g I: SANITARY SEWER SYSTEM ENGINEERING DESIGN REPORT FOR PLEASANT FOREST SUBDIVISION PHASE ONE CO LLEG E STATION, BRAZOS COUNTY, TEXAS APRIL, 199 Submitted By: Michael G. Hest er, P. E. Hester Engineering Company 7 60 7 Eastmark Drive, Suite 25 3-B College Station, TX 77840 ( 409) 693-1100 fx:( 409)693-1075 PLEASANT FOREST SUBDIVISION SANITARY SEWER SYSTEM ENGINEERING DESIGN REPORT COLLEGE STATION, BRAZOS COUNTY , TEXAS APRIL , 1997 INT RODUCT ION : The propo s ed site is loca t ed along the State Highway 6 f r o ntage r oa d app rox i mately 3 00 feet no rth o f Mile Dr i ve. The l egal descript ion is Pleasant Fo rest S ub di v ision , Block One, Lots 1 -3 5 and Blo ck Tw o , Lot s 1-4 a n d is 11 .43 acres. The proposed i mp rove ment.s incl ude pavement , d rai nage an d uti l ity improv ements f or si ngle famil y residential homes . The s ite cons i sts of g r ass land with n umerous o ak t r e es. Th e terra in slopes i n a n orthwesterly di rection toward an ex isti n g c han nel a t ap proxi ma tely 2 pe rce nt . The sit e is zoned R-1 (residential) and is bei:Jg deve lop ed by Mr . Dean Schi effe r , P.O. Box 70, Kurten, T X , (409)2 68 -8 403. The propo sed system was mo del ed usi ng the Haestad Metho ds S tormcad computer program and wil l fu nc t ion proper l y at t he r equired. flow s . At. peak flow t h e propos ed lin e s are less than ha lf full . The exi st i ng 18 " trunk line which is the o utfa ll for the proposed system was assumed to be f low ing full whic h g i ves a c o n se rvat.ive t a il water e ffect f o r t h e system. A 6 " PVC san itary sewe r l ine at the minimum proposed slope o f 1 .0% has a capa city of 330 g pm whi ch is much gre ater than the ma ximum systems inflow of 42 . 1 gpm . Th e 42 .1 gpm includes an e x is tin o re s i denti al and comme r c i al a rea flowing through the s yst em. PL EAS A NT FOR EST SUB DIVI SION SAN ITARY SEWER DESIGN ENGIN EER IN G REPORT -PAGE 1 OF 4 PAG ES The syst em s a~:icipate d flo w f o r re si dential was calculated us i ng 3 p2o p l e /d wE:lling u nit , 1 00 g al /c ap /day with a peaking f ac tor of 4 . The commerc ial f l o w wa s ca lculat ed using 7 lots (u lt i ma ce ::ie velop rr.s!!c) at 3 emp l o yees /lo t , 2 5 gal I cap/ day and a pe ak ing fa ccor o f 4 . Infiltra t i o n all owa nc e i s 3 0000 g pd /mile for each section of p ip e , ch is was ad ded to the calculated flo ws . A cab le s h owi ng the an tici pated f l o ws , a copy of the output of the compute r mo del an d the c apacit y o f a 6 11 PVC sanitary sewer li ne ~s incl ude d f or review . MINIMU M AND MAX IMUM GRADES: MIN . MA X. 6 " PVC , n =0 .0 1 1 .00% 3 .2 7% Qf u ll = 330 gpm , Qanti ci p ac ed = 42.l gpm CAPAB ILITY OF EXISTING TRUNK AND INTERCEPTOR SEWERS : The propo se d syst e m wi l l c onnect t o an ex isting 18" diameter trunk l ine alo n g Bee Creek Tri butary "A " which was installed by th e City c f Co lle ge St a tion t o serve the surrounding area. The tru nk line wa s de sign e d to incl ude thi s propo sed developed area. TYPE OF PIPE AN D ITS ANTICIPATED PERFORMANCE : The typ e o f pipe p ro pose d for thi s proj ect is PVC SDR26 ASTM D30 34 heavy wall san i t a ry sewer pi pe i n a 6 inch size with c omp ression type f itc i ngs . PVC sewe r pi pe i s not a ffected by sulfuric acid in the c onc en t ra tions att ained in resi dential sa nita ry sewer systems; PLE ASA NT FO l ~E ST SUB DI VISIO N SANITARY SEWER DESIGN ENGINEERING REPORT -PAGE 2 OF 4 PAGES t.he refo r e, ~h e gen eration of hydro gen sul fide d oes not c ontribute t o corros:.c n proble:::.s . The average d epth o f cover i s eight f ee t an d wi t.h the p r opo sed be dding tec hnique s the p i pe should han d~e a~--:::.o adins condit.ions . Deflec tion and i nfiltration tests a re pro:i;:,.s ed pe rf or;nan ce . MANHO LE SPACI NG : t.c as s u.re the r equired construction The i:.C<x imum d::..s r.an ce between ma nh ol es i s 500 fee t . AREAS NOT SE RV ED BY THE PRESENT PROPOSED PROJECT: and Th e propo s ed developme nts san it ary s e wer system will d is charge ::..n t.o an exist.ing sanit ary s ewer trunk line. An existing 8 . 32 a c::::-e comme r cia lly zoned tract a nd -a 9 . 63 acre residentia l t ra ct ~o ~~e sout h of the prop o sed development is connected to the exisc ::_~'S system an was inc lude d in t he mo del to determi ne it s carry::_ng c ap a cit.y. No othe r area 's will be connected to this s ys tem in =~e future. AMO UNT OF INFI LTRATION /INFLOW EXISTING AND ANTICIPATED: In f low is ma naged by a City o f Colle ge S t a tion ordinance not a l l o wi g :<Ly sort o f drain t o be t ied to t he san i tary sewer sy stem . Ocher prec aut.ions are the u s e of wa terti ght manhole rings a nd covers in areas wh ere stor m water cou ld get i nto the system. The groun c: water table in thi s area i s be low t h e proposed system and al:::. :: a.nho les are construc ted at l ea s t 0 . 5 fee t above su rroundi Lg natural ground. Soi l c o nd itions at the site cons i st of pr ima::::-j J y cl ays with a thin layer of lo a m on top. PLEA SAN T FO REST SUBDIV ISIO N SAN ITARY SEWER DESIGN ENGI NEERING REPORT-PAGE 3 OF 4 PAGES CO NCLUSION Wi t.:1 ·. ::e inst a.::. lat i o n of the sewer 1 in es there is more than suff i ci E::.~ c apaci::; t o accommodate the peak flows and any inf il ra;: .::._ ~E . The propos ed system presented in this report is prep a r ed ~-;:~ consideration given to the Texas Water Commission "Des :!.g n ::c· _ c e:::-ia f :.:!'." Sewerage Systems" and the City of College Stat i o n d c~ign standa r ds and specification s. REFERE NC ES: "Des :: . ..::1-: And Cc n struction o f Sanitary and Storm Sewers", WEF Man ua l of ?:!'."ac tice No . 9 , ASCE Manual on Eng ineering Practice No. 37, 1970 11 :Jes i 0 n Criter ia ~or Sewerage Systems" Texas Water Com missi or .. PLE ASA NT FORES T SUB DIV ISIO N SANITARY SEWER DES IGN ENGIN EE RING REPORT · PAGE 4 OF 4 PAGES >--~ I w r-- <( r-- ifl P~[C:f··\_5/\[\~~r f 0Rf::51-5Ui?D~V~5~0 N Pl -1 JP\5f:: Q ~,J[f COL-~f c~e 5 .. rl\flOr L BRAZ O S COUNfYJ If XA5 PRE:P /\RE:t? B Y: M ichael Ci. Hes-te r, PE . HE:5-rE::R f NC11NE:E:RINC1 COMP f\NY 7607 E:A5fMARK t?RIVE:, 5Ul-rE:: 2??-B COL.L.E:C1E: 51A110f\J, IX 77 840 ( 409) 695-1100 fx:C 4C19) 695-107? G_, ' ~.~' 5A Nl lARY 5f \NeR L.AYOUI =• ·"" 0 <"--YU'.:A5AN f f 0 Rf5f 5UBt?IVl 510 N -"1 ~ ~ ~ ', . PHASf ONE: 006 ' .-11 ovve 'UNCi uN1-rr I' , .. I ~vve t.. INCi N1-rs • // ' \ ,o 9 s J 7 6 I s 4 3 2 1 \\ Pl-E:A5ANf fORE:Sf tvRIVE: 1\ _J_ _ I H**S-1------.. \ _ _ _ ___ ~MH~-2 _ SWR . ~ '\ l-IN~ 5-11 CO J ~ ~ I / \ \ 6" SAN. SWR. 4 t? l-l-1 Ci UN fS ~\ i2 13 14 15 16 17 18 19 \ \ \ \ '\ 1.;~ -\ ~1-~~~--Nl1'.'..5~/ \-/ -2 9 "st·~~; 33 ~ I 3 5 ~'vvvt:l-l-I NCi UNlfS \Ls ? V\tl-1 IN~l fS l ~) ~ X -6 "SAN .~S-6 -;-1 --.._ '--1~ I c -ro Bi:: ABANt?ONW> t..JNi:: s-:? _) MH**s':7 1 / 6" SAN . 5YVR. i 7 r---- 11 MO I:? I I \~Ai -@ o " I ~ I D i D . X·8"5AN5\W. . : DJJ_ I 0 0 I I ~ I ~ ~ I 0i I ~ \I ~ I 7' \ I ~ \~ ~ \ s_ \ . ~ \ \ )> I \ X-1 8''5AN. 5YVR .~l \ 0 \ . . . BU51NE:55 ROW: 6 0 • • \, 1 \ \\ \ . \ \ I I \ ) ) ;/ . \ X-6 "5AN.5YVR . I I 9 .65 AC. 18 t?V\tl-l-INCi UNlf5 ZO NW RE:51t?i::N 11AL. J I 0 B .?2 AC ZONW CO MME:RCIAL. 0 •• ' \ SANITARY SEWER FLOW/CAPACITY ANALYSIS PLEASANT FOREST SUBDIVISION PLEASAN T FORE S T S UBDI VISI ON SANITARY SEWER FLOW/CAPACITY ANALYSIS APRIL 3 , 1 997 FR OM TO LO TS TOTAL CAPITA 100 GAL PEAK ING GPM LOTS PER LOT PER DAY FACTOR (3) PER CAPIT. (4) LINE S -1 (GPD) CO#l MH#S2 8 8 24 2400 9600 6.7 MH#S2 MH#Sl 1 1 19 57 5700 22800 15 .8 LINE S-2, S-3 X-M020 X-M013 7 7 21 525 2100 1.5 X-M013 MH#S -7 18 18 54 5400 21600 15.0 MH#S-7 MH #S -4 6 24 72 7200 28800 20 .0 MH#S-4 MH#S -5 12 36 108 10800 43200 30.0 MH#S-5 X-MOll 3 39 117 11700 46800 32.5 RESIDENT I AL WASTE WA TER QUANT I TY DE TE RMI NAT ION GPM = LOT* (3 PEOPL E /LOT) (lOOGAL/CAP/DAY) (4 PF) (1 DAY/1440 MIN.) COMMER I CA L WASTEWATER QUANTIT Y DET ERMINATI ON 7 LOT S X 3 EMPL OY ESS /LOT 2 5 GAL /CAP/EMPLOYEE INFILITRATION INFIL . LENGTH GP M 223 0.9 355 1 .4 1040 4 .1 175 0.7 304 1.2 336 1 .3 195 0.8 =21 EMP.X 25 GAL/CAP/DAY X 4 (PEAK) 2100 GPD 1 .5 GPM INF I LITRATION 30000 GAL/DAY/MILE 30 000G /D/M X lDAY/1440MIN.XlMILE/5280FT .=0 .0039 5 G/M /FT . TOTAL TOTAL FLOW INFLIL. (GPM) 0.9 7 .5 2 .3 18 .l 4.1 5.6 4 .8 21.3 6 .0 27.5 7.3 38.8 8.1 42 .l SANITARY SEWER LINE S-1 COMPUTER MODEL OUTPUT PLEASAN T FOREST SUBDIVISION X-18"SAN .SWR M003 OJ rn rn () :;o rn rn ~ ~ (jj c -I ~ -< » Project Title : PLEASANT FOREST SUBDIVISION c :\haestad\stmc\pf.stm 04104197 03 :49 :41 PM X-6"S .S . ,! MOOS M006 MH#S-1 X-18"SA N . SWR. PLEASANT FOREST SUBDIVISION 9 8 7 6 5 4 P LEASANT FO REST DR IV E 1-2 3 2 N , OUTFALL .'·~ ' ' P-4 MH#S -2 P-3 1-1 I \ 13 14 1 5 1 6 LINE S-1 SANITAR Y SEWER FLOW ANAL Y SIS PLEASANT FOREST SUBDIVISION PREPARED BY HESTER ENGINEERING COMPANY 7607 EASTMARK DRIVE , SUITE 253-B COLLEGE STATION , TX 77840 (409)693 -1100 fx :(409)693-1075 1 7 C0#1 C0#2.q 18 1 9 / N LINE S-2 Project Eng in eer: HESTER ENGINEERING COMPANY HESTER ENGINEERING StormCAD v1 .0 © Haestad Methods , Inc. 37 Brookside Road Waterbury , CT 06708 USA (203 ) 755-1666 Page 1 of 1 Inlet: 1-2 Rim : 268 . 75 ft Sump: 260.26 ft Pipe : P-4 Up Invert~ 260.26 ft Oh nvert. 248.65 ft Length i: 356.00 ft $ize: 51 inch ' Inlet: 1-1 Rim : 276 .00 ft Sump: 261/.27 ft . 280.00 275 .00 270 .00 265.00 . ----·· ----------· 260.00 255 .00 Pipe: P-3 u8~ l~~~~r ~~bo·~~ ft 250.00 ength: 231.0 ft Size: 6 inch 245.00 Elevation ft 0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 4+50 5+00 5+50 6+00 Station ft Project Title : PLEASANT FOREST SUBDIVISION c :\haestad\stmc\pf.stm 04104197 02 :50 :29 PM Project Engineer: HESTER ENGINEERING COMPANY HESTER ENGINEERING StormCAD v1 .0 © Haestad Methods , Inc. 37 Brookside Road Waterbury , CT 06708 USA (203) 755 -1666 Page 1 of 1 ------------------Beginning Calculation Cycle ------------------- Discharge: 7.5 gal/min at node I-1 Discharge: 18.1 gal/min at node I-2 Discharge: 18.1 gal/min at node OUTFA LL Beginning i teration 1 Discharge: 7.5 gal/min at node I-1 Discharge : 18.1 gal/m in at node I-2 Discharge: 18.l gal/m i n at node OUT FALL Discharge Convergence Ach iev ed in 1 iterations : relative error: 0.0 **Warning: Design constraints not met . Warning: No Duration da ta ex ists in IDF Table Information : OUTFA LL Known flow propaga ted from u pstream junctions. Violation: P-3 does not me et minimum veloc ity const raint. ---------------------Calculations Com p lete ---------------------- ** Analysis Options ** Friction meth od : Manning's Formula HGL Converge nce Test : 0.001000 Maximum Net work Traversals: 5 Number of Flow Pro file Steps: 5 Discharge Con v ergence Test : 0 .001000 Maximum De sig n Passes : 3 -----------------Network Quick View ------------------------ Label P-3 P-4 Length 231.00 356 .00 Size Discharge 7 .5 18 .l Hydraulic Grade Upstream I Downst ream Label Discharge OUTFALL 18 .l I-1 7 .5 I-2 18 .l Elapsed: 0 mi nute(s ) I I 5 6 inch 6 inch ----------- Ground 258.0 0 27 5.5 0 268.25 second (s ) 267.33 260.40 260.36 248 .7 1 Elevations ----------------! Upst ream HGL I Downstream HGL ! 247.40 247.40 267.33 267.33 260.36 260.36 Project Title : PLEA SANT FORE ST SUBDIV IS ION c :\haestad\stmc\p f .stm HESTER ENGINEERING Pr oject Engineer: HESTER ENGINEERING COMPANY StormCAD v1 .0 04 104197 02:49 :04 PM © Haestad Method s, In c . 37 Brookside Road Waterbury , CT 06708 USA (2 03) 755-1666 Page 1 of 1 SANITARY SEWER LINE S-2 & S-3 COMPUTER MODEL OUTPUT PLEASA NT FOREST SUBDIVISION PLEASANT FOREST SUBDIVISION co rn rn 0 ?A rn /". ~ co c -I ~ -< ):> X-MH M011 X-1 8"SAN . SWR / Project T itl e : PLEASANT FOREST SUBDIVISION LINE S-2 &3 26 P-4 28 25 24 23 22 21 20 ·, C0#2v !· I N : MH #S -3 PLEASANT GROVE DRIVE 29 M012 1-4 P-3 1 --- MH#S-4 -~.: 1-3 MH#S-5 LINE S-2 P-2 35 6" SAN . SV11R 33 34 J-1 P-1 MH#S-6 '' --I LINE S-2 , S-3 SANITARY SEWER FLOW ANALYSIS PLEASANT FOREST SUBDIVISION PREPARED BY HESTER ENGINEERING COMPANY 7607 EASTMARK DRIVE , SUITE 253-B COLLEGE STATION , TX 77840 (409)693-1100 fx :(409)693-1075 c :\haestad\stmc\pf-2 .stm HESTER ENGINEERING ' N I I X-6"SA N SWR. (TO BE ABA NDONED) MH#S-7 1-1 Project Engineer: MICHAEL G . HESTER , P.E. 04/04/97 06 :25 :19 PM © Haestad Methods , Inc. 37 Brookside Road Waterbury , CT 06708 USA (203) 755-1666 StormCAD v1 .0 Page 1 of 1 . ""'..,·~,...., • ., • .:.a~•·•--"-_., , •• '~ r • ,_, ~,.__ • • , • '••· '• • , ., , • • ,~,, ------------------Beginning Calcu ation Cycle ------------------- Discharge: 21.3 gal /m in at node I-1 Discharge : 21.3 ga l /min at node J-1 Discharge: 38.8 gal /min at node 1-3 Discharge: 42.l gal /min at node I-4 Discharg e: 42.l gal /mi n at node Ou~let Beginning iteration 1 Discharge: 21 .3 gal /m in at node I-1 Discharge: 21.3 gal/min at node J-1 Discharge: 38.8 gal /min at node 1-3 Discharg e: 42 .l gal /m in at node :-4 Discharge: 4 2 .l gal/min at node Ou~let Discharge Convergence Achieved in : iterations: rel ative error: 0 .0 Warning: No Duration data e xis ts in IDF Table Informati on: Outl et Known flow propagated from upst ream junc tions. Informati on: J-1 Known flow propagated from upstream junctions. ---------------------Calculati ons Com plete ---------------------- ** Analysis Option s w* Friction me thod : Manning's For mu~a HGL Converg ence Test: 0 .00 1000 Maximum Ne twork Traversals : 5 Number of Fl ow Profile Steps: 5 Discharge Convergence Test: o.oo :coo Maximum Desi gn Passes : 3 -----------------Network Quick View ------------------------ Hydraulic Grade Label Length Size Discharge Upstre am I Down stream P-1 147 .00 6 inch 21.3 260.21 258.86 P-2 164 .00 6 inch 21.3 2 58.7 8 257 .12 P-3 336.00 6 inch 38.8 2 57.08 253.70 P-4 19 2 .00 6 inch 42 .l 253.70 247.96 -----------Elevations ----------------I Label Discharge Ground Upstream HGL I Downstream HGL ! Outlet 42 .l 258.00 247.96 247.96 I-1 21 .3 26 6 .5 C 260.21 260.21 J-1 21 .3 262.5 0 258.78 258.78 I-3 38 .8 267.5 0 257.08 257.08 I-4 42 .l 26 2.25 253 .7 0 253 .7 0 Elapsed : 0 minute(s) 5 second(s ) Project Title PLE ASANT FOREST SUB DIVISI ON LINE S-2 &3 Project Engineer: MICHAEL G . HESTER , P .E. c:\haestad\stmc \pf-2 .stm HESTER ENGINEERING 04104197 04 :31 :18 PM © Ha esta d Methods . Inc . 37 Brookside Road Waterbu ry , CT 06708 USA (203) 755-1666 StormCAD v1 .0 Page 1 of 1 Outlet: Outlet Rim : 258 .50 ft Sump : 246.46 ft 0+00 1+00 ....:,-' ' Inlet : 1-4 Rim : 262.25 ft Sump : 253.55 ft Pipe : P-4 Up Invert: 253 .55 ft On Invert : 247 .33 ft Length : 192 . 00 ft Size : 6 inch 2+00 3+00 Project Title : PLEASANT FOREST SUBDIVISION LINE S-2 &3 Inlet : 1-3 Rim: 267.50 ft Sump : 256 .93 f\ Pipe : P-3 Up Invert: 256 .93 ft On Invert : 253 .55 ft Length : 336.00 ft Size : 6 inch 4+00 5+00 Station ft 6+00 c :\haestad\strnc\pf-2 .strn HESTER ENGINEERING 270 .00 Junction : J-1 Rim : 262 .50 ft Sump : 258 .67 ft Inlet: 1-1 255 .oo Rim : 266 .50 ft Sump : 260 .10 ft Pipe : P-2 Up Invert : 258 .67 ft On Invert : 257 .03 ft Length : 164 .00 ft Size : 6 inch 7+00 Pipe : P-1 Up Invert : 260 .10 ft On Invert : 258 .77 ft Length : 147 .00 ft Size : 6 inch 8+00 260 .00 255 .00 250 .00 245 .00 9+00 Elevation ft Project Eng ineer: MICHAEL G . HESTER , P.E. 04/04/97 04 :33 :33 PM © Haestad Methods , Inc . 37 Brookside Road Waterbury , CT 06708 USA (203) 755-1666 StorrnCAD v1.0 Page 1 of 1 6" PVC SANITARY SEWER LINE CAPACITY PLEASANT FOREST SUBDIVISION Project Descript io n 6" PVC SAN . SWR. CAPACITY Worksheet for Circu lar Channel Project Fil e c :\haestad \f mw\pf.fm2 Workshee t 6" PVC SA NITA RY SEWER Flow Elem en t Method Solve For C ircular C h a nnel M ann ing 's Fo rm ul a D ischarge Inpu t Data Mann ings Coeffic ie nt Channel Slope Dept h Dia mete r Res ults Disch arge Flo w A rea We tte d Peri meter Top W idt h Crit ical Dept h Pe rcent Full Crit ica l S lop e Velo c ity Vel ocit y Hea d Spe cific Ene rgy Fro ude Num be r Ma ximum Di scha rge Full F low Ca pa c ity Full F low S lope Flow is subc ritica l. 0 .010 1.0 000 % 0 .50 ft 6 .00 in 3 30 0 .20 1.57 ga l/min ft2 ft 0.1 Se-7 ft 0 .43 ft 100.00 0.009287 ft/ft 3.7 1 ft /s 0 .2 1 ft 0 .71 ft 0 .18e-3 0.78 cfs 0 .7 3 cfs 0 .01 0000 ft /ft 041041 97 03 :04:53 PM Haes tad Meth od s , Inc . 37 Brooks ide Roa d Waterb ury , CT 06 708 (2 03) 755-1666 FlowMaster v5 .13 Page 1 of 1 6" PVC SAN . SWR. CAPACITY Rating Table for Circular Channel Project Description Project F ile c :\haestad\fmw\pf. fm2 Worksheet 6" PVC SANITARY SEWER Flow Ele m ent Method Solve For Consta nt Data Circular Channel Manning's Formula Discharge Mann ings Coefficient Depth 0 .0 10 0 .50 ft 6 .00 in Diameter Input Da ta Minimum Maximum Channe l Slope 0.010000 0.050000 Rating Table Channel Slope D ischarge Velocity (ft /ft ) (g al/min ) (ft/s) 0 .010 000 330 3 .71 0 .02000 0 460 5.25 0 0300 0 0 570 6.43 0 .04 00 0 0 650 7.43 0 .0500 0 0 730 8 .31 Increment 0 .010000 ft/ft 04/04/9 7 03 :03 :33 PM Hae stad Methods , Inc . 37 Bro oks ide Road Wate rbury . CT 06708 (2 03) 755-1666 FlowMaster vS .13 Page 1 of 1 WATER DISTRIBUTION SYSTEM ANALYSIS PLEASANT FOREST SUBDIVISION PHASE ONE COLLEGE STATION, BRAZOS COUNTY, TEXAS MARCH, 1997 Submitted By: Michael G. Hester, P.E. Hester Engineering Company 7607 Eastmark Drive, Suite 253-B College Station, TX 77840 ( 409) 693-1100 fx:( 409)693-1075 ., 'I WATER DISTRIBUTION SYSTEM ANALYSIS PLEASANT FOREST SUBDIVISION, PHASE ONE BRAZOS COUNTY , COLLEGE STATION , TX MARCH , 1997 INTRODUCTION: The proposed site is located along the State Highway 6 frontage road approximately 300 feet north of Mile Drive. The legal description is Pleasant Forest Subdivision , Phase One, Block One , Lots 1-35 and Block Two , Lots 1-4 and is 11.43 acres. The proposed improvements include pavement , drainage and utility improvements for single family resident i al homes . The site consists of grassland with numerous oak trees. The terrain slopes in a northwesterly direction toward and existing channel at approximately 2 percent. The site is zoned R-1 (residential) and is being developed by Mr . Dean Sc h ieffer , P.O. Box 70 , Kurten, TX , (409) 268-8403. The p roposed water sys t em wil l connect to an existing 12" waterline along the S.H . 6 frontage road . The subdivision was modeled using t he Haestead Methods "Cybernet " program and scenarios were prepared placing fire flow demands at each proposed f ire hydrants . The maximum daily demand generated by the dwel l ing units was added to the fire f l ow demand. Th e results of the analysis has been included in this report. ANALYSIS : -PVC water line p ip e with a rou ghness c oeffic i ent of 150 -Fire flows of 7 5 0 gpm -6 " minimum waterline s i ze -Maximum water l ine velocities during a fire flow simulation were held at 10 fee t per secon d. -Minimum residual pressures at 20 p.s.i. MAXIMUM DAILY FLOW CALCULATIONS: (1 D .U.)*(2.7 PEOPLE/D .U.)*(1 30 GPCD)*(l DAY /1440 MIN.)= 0.24 GPM Max imum da ily flow f or a section of wa t erline = 0 .24 gpm t i mes the numb er o f l ots. PLEASANT FOREST SUBDIVISION , PHASE ONE · WATER SYSTEM ANALYS IS· PAGE 1 OF 2 PAG ES '• • I CONCLUSION In conclusion the proposed system can provide a f iref low demand of 750 gpm at each fire hydrant with a residual pressure greater than 20 psi. PLEASANT FOREST SUBDIVISION, PHASE ONE -WATER SYSTEM ANALYSIS -PAGE 2 OF 2 PAGES / / ' I ---------·--- ~// I I ,/ I \_v/'I /1 I ' ~ ~ 1 PAR KW AY\ i. i i >--\ 5 .__I ___ \ I K '1,. w ! ~ t-I , A ? ",, "'-' ..... ' f-i '-I ~~I i "-..... I i~ ! i /! ! tr P~fA5A~JI FORE:51 5 UBD~V ~5~0N P[~A5t: ON E: COL-L-~:.Af .::·t f-~10f'\L BPJ\Z05 COUNIY~ 11f XA5 PR f PARE:D BY: 1.\A ichael a . Hester, PE . Hf 5-rfR E:t,Jl'.A lf\-JE:f R l ~,,J a COMP AN Y 7607 f A51M/\RK DR IVE , 5U lff 205-B COL-L-f Ci f.: 5 1 AllO , IX 77840 ( -409) 695-1100 fK :( 409) 695-1070 r \ \ 6" VAL.Ye 6"X\'" BeNl7 6"X22.?" BE:Nt7 -..___ I \ \ \ \ \-- - -- 6"WA11"RL.INE: 2-6"X4?" BeN175 fl~ HWR.ANf WAfi::R t7151RIBUIA110N 5Y5fi::M ANAL-Y515 PLEA5ANf fORf 51 5UBt71Vl510N PHASE: ONE: MARCH.97 P~PARWBY HE:511::'R E:NCAINE:E:RINCA COMPANY 1607 E:A5flv\ARK 17Rl\/e, 5Ulfe 2?~-B cou ... rai:: 5fAflON. rx 77840 C 409)69~-1100 fx:C 409)6 9~-107? ,; I I I j 1 ************************************************ S U M M A R Y 0 F 0 R I G I N A L DAT A ************************************************ Cy berNet Version 2.18. Copyright 1991,92 Haestad Methods Inc. Run Description : Basic Network Drawing: PF -WAT p I p E L I N E DAT A STATUS CODE : xx -CLOSED PIPE BN -BOUNDARY NODE PU -PUMP CV -CHECK VALVE RV -REGULATING VALVE LINE PIPE NODE NOS. LENGTH DIAMETER ROUGHNESS MINOR LOSS NUMBER #1 #2 (ft ) (in) COEFF. COEFF . BND-HGL (ft) ------------------------------------------------------------------------------- 1 0 -BN 0 10 505 .0 8.0 150.00 6.00 495.00 20 20 10 125 .0 12.0 150.00 0.00 30 30 20 150 .0 6 .0 130.00 2 .00 4 0 40 30 94.0 6.0 150.00 0.50 60 30 60 301.0 6.0 150.00 2.80 7 0 40 70 550.0 6 .0 130 .00 1.30 80 70 80 283.0 6 .0 130 .00 0.40 9 0 80 60 488.0 6.0 130 .00 0.80 J UN c T I 0 N N 0 D E D A T A JUNCTION JUNCTION EXTERNAL JUNCTION NUMBER TITLE DEMAND ELEVATION CONNECTING PIPES (gpm) (ft) ------------------------------------------------------------------------------ 10-1 12 "X8 11 TEE 0 .0 0 274.00 10 20 20-1 12 11 X6" TS&V 0.00 275.00 20 30 30-1 6"TEE AT PFD 0.24 272 .00 30 40 60 40-1 FIRE HYDRANT 750.00 269 .00 40 70 60-1 FIRE HYDRANT 1.95 263.00 60 90 70-1 PF-6 "BEND 4.14 254 .00 70 80 8 0-1 PG-6X90 BEND 3 .1 7 254.00 80 90 +-----------------------------------------------+ MAXIMUM DIME NSIONS Number of pipes . . . . . . . . . . . . . . . . . . . . . . 25 Number of pumps . . . . . . . . . . . . . . . . . . . . . . 10 Number junction nodes................. 25 Flow meters . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Boundary nodes . . . . . . . . . . . . . . . . . . . . . . . 10 Variable storage tanks . . . . . . . . . . . . . . . 10 Pressure switches . . . . . . . . . . . . . . . . . . . . 10 Regulating Valves..................... 10 Items for limited output . . . . . . . . . . . . . 25 limit for non-consecutive numbering . . 270 +-----------------------------------------------+ Cybernet version 2.18. SN: 1132184437-25 Ext e nded Descrip t ion: U N I T S S P E C I F I E D FLOWRATE ........... . HEAD (HGL) ......... . PRESSURE ........... . 0 U T P U T 0 P T I 0 N gallons/minute feet psig DAT A OUTPUT SELECTION: THE FOLLOWING RESULTS ARE INCLUDED IN THE TABULATED OUTPUT s y s T ALL CLOSED PIPES ARE NOTED ALL PIPES WITH PUMPS FOLLOWING PIPES 10 20 30 40 60 70 FOLLOWING JUNCTION NODES 10 20 30 40 60 70 MAXIMUM AND MIN IMUM PRESSURES E M c 0 N F I G u RAT I 0 N NUMBER OF PIPES ................... (p) NUMBER OF JUNCTION NODES . . . . . . . . . . ( j) NUMBER OF PRIMARY LOOPS ........... ( 1) NUMBER OF BOUNDARY NODES .......... (f) NUMBER OF SUPPLY ZONES ............ (z ) 80 90 80 8 7 1 1 1 2 SL VVl ~ Lf),'LllON ~ \ Ftr'lCF\....ow <2 :t±Go n t:CL<>tw-i ~vc Orz. . ************************************* S I M U L A T I 0 N R E S U L T S ************************************* The r esults are obtained after 3 trials with an accuracy 0.00005 . ' S I M U L A T I 0 N D E S C R I P T I 0 N CyberNet Version 2.18. Copyright 1991,92 Haestad Methods Inc . Run Description: Basic Ne t work Drawing: PF-WAT P I P E L I N E R E S U L T S STATUS CODE : BN -BOUNDARY NOD E PU -PUMP LINE XX -CLOSED PIPE CV -CHECK VALVE RV -REGULATING VALVE TK -STORAGE TANK PIPE NUMBER 10-BN 20 30 40 60 70 80 90 NODE NOS. #1 #2 0 20 30 40 30 40 70 80 10 10 20 30 60 70 80 60 FLOWRATE (gpm) 759 .50 -759 .50 -7 59.50 -229 .00 530.26 229 .00 224.86 221 .69 HEAD LOSS (ft) 4 .25 0 .15 6 .68 0.35 5 .29 2.66 1.32 2.22 J U N C T I 0 N N 0 D E R E S U L T S JUNCTION NUMBER JUNC T ION TITLE 10-1 12 11 X8 11 TEE 20-1 12 11 X6 11 T S&V 30-1 6 11 TEE AT PFD 40-1 FIRE HYDRANT 60-1 FIRE HYDRANT 70-1 PF-6 11 BEND 80-1 PG-6X9 0 BEND EXTERNAL DEMAND (gpm) 0 .00 0.00 0 .24 0.00 751.95 4.14 3.1 7 HYDRAUL I C GRADE (ft) 488.56 488.4 1 479.42 479 .02 472.56 476 .23 4 7 4.86 PUMP HEAD (ft) 0 .00 0.00 0 .00 0 .00 0.00 0 .00 0 .00 0.00 JUNCTION ELE VATION (ft) 2 7 4 .00 2 7 5.00 2 7 2 .00 269 .00 263.00 254.00 254.00 MINOR LOSS (ft) LINE HL/ VELO. 1000 (ft/s) (ft/ft) 2 .19 0 .00 2 .31 0.05 1. 57 0.14 0.04 0.08 4 .85 2 .15 8 .62 2 .60 6.02 2 .60 2.55 2.52 PRESSURE HEAD (ft) 214.56 213.41 207 .42 210 .02 209.56 222.23 220.86 8.42 1 .17 44.55 3.71 17.57 4.84 4 .68 4.55 JUNCTION PRESSURE (psi) 92.98 92.48 89.88 91.01 90.81 96 .30 95.7 1 M A X I M U M A N D M I N I M U M V A L U E S P R E S S U R E S JUNCTION NUMBER 70 80 MAXIMUM PRESSURES (psi) 96.30 95 .71 JUNCTION NUMBER 30 60 MIN I MUM PRESSURES (psi) 89.88 90.81 .. S U M M A R Y 0 F I N F L 0 W S AND 0 U T F L 0 W S (+) INFLOWS INTO THE SYSTEM FROM BOUNDARY NODES (-) OUTFLOWS FROM THE SYSTEM INTO BOUNDARY NODES PIPE FLOWRATE NUMBER (gpm) -------------------- 10 759.50 NET SYSTEM INFLOW 759.50 NET SYSTEM OUTFLOW 0 .00 NET SYSTEM DEMAND 759 .50 **** CYBERNET SIMULATION COMPLETED **** DATE: 4/23/1997 TIME : 8:18:36 +-----------------------------------------------+ MAXIMUM DIMENSIONS Number of pipes . . . . . . . . . . . . . . . . . . . . . . 25 Number of pumps . . . . . . . . . . . . . . . . . . . . . . 10 Number junction nodes................. 25 Flow meters . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Boundary nodes . . . . . . . . . . . . . . . . . . . . . . . 10 Variable storage tanks . . . . . . . . . . . . . . . 10 Pressure switches . . . . . . . . . . . . . . . . . . . . 10 Regulating Valves..................... 10 Items for limited outpu t . . . . . . . . . . . . . 25 limit for non-conse cutive numbering . . 270 +-----------------------------------------------+ Cybernet version 2.18. SN: 1132184437-25 Extended Description: U N I T S S P E C I F I E D FLOWRATE ........... . HEAD (HGL) ......... . PRESSURE ........... . 0 U T P U T 0 P T I 0 N gallons/minute feet psig DAT A OUTPUT SELECTION: THE FOLLOWING RESULTS ARE INCLUDED IN THE TABULATED OUTPUT s y s T ALL CLOSED PIPES ARE NOTED ALL PIPES WITH PUMPS FOLLOWING PIPES 10 20 30 40 60 70 FOLLOWING JUNCTION NODES 10 20 30 40 60 70 MAXIMUM AND MINIMUM PRESSURES E M c 0 N F I G u RAT I 0 N NUMBER OF PIPES ................... (p) NUMBER OF JUNCTION NODES .......... ( j) NUMBER OF PRIMARY LOOPS ........... ( 1) NUMBER OF BOUNDARY NODES .......... (f) NUMBER OF SUPPLY ZONES ............ (z) 80 90 80 s l\1U.lJ L~ l:.lO ..-..) ~ 2- 2 f LYZV fWJ w 8, % k 8 'lita.\D.v-T rf-~lvG 7 1 1 1 ************************************* S I M U L A T I 0 N R E S U L T S ************************************* The results are obtained after 4 trials with an accuracy 0.00098 S I M U L A T I 0 N D E S C R I P T I 0 N CyberNet Version 2 .18 . Copyright 1991 ,92 Haestad Methods Inc. Run Description: Basic Network Drawing: PF-WAT P I P E L I N E R E S U L T S STATUS CODE : PIPE NUMBER 10-BN 20 30 40 60 70 80 90 J U N c T JUNCTION NUMBER I 0 XX -CLOSED PIPE CV -CHECK VALVE BN -BOUNDARY NODE RV -REGULATING VALVE NODE NOS . FLOWRATE HEAD LOSS (ft) PUMP HEAD (ft) #1 #2 0 20 30 40 30 40 70 80 N N 0 10 10 20 30 60 70 80 60 D E R (gpm) 759 .50 -759 .50 -759 .50 -628 .44 130.82 -121 .56 -125.70 -128.87 E s u L T s 4.25 0 .15 6.68 2.26 0 .40 0.82 0 .45 0 .8 1 0.00 0 .00 0 .00 0 .00 0.00 0.00 0.00 0 .00 JUNC T ION EXTERNAL HYDRAUL I C JUNCTION TITLE DEMAND GRADE ELEVATION (gpm) (ft) (ft) PU -PUMP LINE TK -STORAGE TANK MINOR LOSS (ft) 2.19 0.00 2.31 0.39 0.10 0.04 0.01 0 .03 LINE HL / VELO . 1000 (ft/s) (ft/ft) 4.85 2.15 8.62 7.13 1.48 1.38 1.43 1 .46 8.42 1.17 44.55 24.07 1 .32 1.50 1.59 1 .67 PRESSURE JUNCTION HEAD PRESSURE (ft) (psi) ------------------------------------------------------------------------------ 10-1 1211x8 11 TEE 0.00 20-1 12 11 x6 11 TS&V 0.00 30-1 6 11 TEE AT PFD 0.24 40-1 FIRE HYDRANT 750.00 60-1 FIRE HYDRANT 1.95 70-1 PF-6 11 BEND 4.14 80-1 PG-6X90 BEND 3 .17 M A X I M U M A N D M I N I M U M P R E S S U R E S JUNCTION NUMBER 80 70 MAXIMUM PRESSURES (psi) 9 7 .11 96 .9 1 488.56 2 7 4 .00 214 .56 488.41 2 7 5 .00 213.41 479.42 2 7 2.00 207.42 476.7 7 269 .00 207 .77 478.93 263.00 215 .93 477.63 254 .00 223 .63 478.09 254 .00 224.09 V A L U E S JUNCTION NUMBER 30 40 MINIMUM PRESSURES (psi) 89 .88 90.03 92.98 92.48 89 .88 90.03 93.57 96.91 97.11 S U M M A R Y 0 F I N F L 0 W S A N D 0 U T F L 0 W S (+) INFLOWS INTO THE SYSTEM FROM BOUNDARY NODES (-) OUTFLOWS FROM THE SYSTEM INTO BOUNDARY NODES PIPE NUMBER 10 NET SYSTEM INFLOW NET SYSTEM OUTFLOW NET SYSTEM DEMAND FLOWRATE (gprn) 759 .50 759.50 0.00 759.50 **** CYBERNET SIMULATION COMPLETED **** DATE: 4/23/1997 TI ME : 8 : 21 : 2 4 ·03 1 2 4 1 97 08 :5 3 '5'40 9 76 4 34 5 2 COL L ST A PIJ B UTL ~0 02 . WATER DISTRIBUTION WORK ORDER Today's Date:,-J.-1 ~l-...... l __ ~_-9 ...... l-+) __ Time: _____ EITlJloyee initiating:._/'-,~· ..... Jk"""w-· ...... ~"""'\-·------ Name of person requesting :.~------------------------- Customername & address: -:J]QO fa5f-J?'i'J><i~-S Jlw~, ~ C~r~-b I YncK-~lazg Phone#: _______ _ Reading: ________ _ REPAIRS NEEDED Meters Service Lines Hydrant• & Valves o Meterleak D Service leak 0 Hydrant leak D Glass broken D Leak detection 0 Repair hydrant D Change out meter D High water bill 0 Paint hydrant o Plug meter D Discolored water o Trm hydrant area O Unplug meter o Low pressure D Pressure test ~ 6 t b ~ro.nc3 D Replace single lid o High pressure O Raise valve box o Replace double lid D Repair yard D Lower valve box ~-~~ ~~;~ l~~;! -0 Replace box o Repair driveway 0 Repair valve =e=;=~~I ~~ ·+=J- i:::J Remove meter o Repair sidewalk WaterMllns E-39 LOO. ~J; D Raise/Lower O Repair street D Mainleak E -J~ I O]l>~:x; D No consu1T1>tion o Tum water on 0 Repair main E-J'l ,o.,:r~r D Test meter o Tum water off D Locate lines Other l ) Ad;v:t(j cor\e (Foo~ O Install temp meter O End of month fUihing O Flush rtne o Remove tefT1) meter O Chlorine residual 0 Inspect line D Read temp meter D Take water safT1)le o Watertap REPAIRS COMPLETED Problem found: ______________________________ _ Repairs completed: F/oe+J i:e6t -£rtf profecb~lA. Meter# .--,-________ Size _____ # Dials ___ Reading ________ _ . If owner problem. were they notified? o ye$ . o no Utility Cut Permit requested?: o, yes · o no Yard repaired? _yes _no If no, was work order made? _yes _not1 i Date & Trme completed: II :l>bo& ti-I IR-'14 Employee : 1~ ~""' ~ MRR-24-1997 09 :07 409 764 3452 93% P.02 > > HESTER ENGINEERING COMPANY 7607 Eastmark Drive Suite 250 'COLLEGE STATION, TEXAS 77840 PHONE (409) 693-1100 FAX (409) 693-1075 WE ARE SENDING YOU ~ Attached D Under separate cover via __________ the following items: D Prints D Plans D Shop drawings D Copy of letter D Change order COPIES DATE NO. ·1 THESE ARE TRANSMITIED as checked below : D For approval D For your use ~ As requested D For review and comment D Approved as submitted D Approved as noted D Returned for corrections D Samples D Specifications D Resubmit ___ copies for approval D Submit ____ copies for distribution D Return ___ corrected prints J10 ~ ~ . ~o s-J'- ------___,,__ - - - - - - - - -B"W"1f•UE -~~ /j,,-"?Q:J.--0 ;i."SUl-Ed"•IOO' 1t'E: 12"XB" f5&V ' --<f S' ' \ \ 6" Vii.VE: 6"X'I:(° ~Nt7 6"X22.7 " B>E:Nt7 \ J70 2 -6 "aA1t' V/i.VE:5 J 2 o ~0 S' FIRE: HWR/\Nf '!>~,,, '\: --<:/() 70 ------- / -_PLEASANT FOREST DRIVE ----I' I \ \ \ \--- - I I 110\ 6"WA1t'RL.INE:~ 0 2-6"X4'7 " !7E:N~05 1 I FIRE: HYt7R.ANf \ J6o\ -- WAffR t?l5fRIL?UfA110N 5Y5ffM ANAL-Y515 PL-r::A5ANI f 0~51 5UBt71Vl510N PHA5e ONe WRCH ,97 PRE:l"Mt7 B>Y HE:51t'R i::Nc:ilNE:E:RINa COMPANY 1601 E:A5flvlAl(K t/RIVE:, 5Ul1t' 2'7:?-B> COL-1 ... E:c:iE: 51A11 0N, IX 77840 C 409)69'?-llOO fi\:C409)69:?-107'7 I I I j RE:Vl5W '7 I Bl 91 a-w.Jc:iE: 6" fO B" L-INE: FROM FRONfAa ROAt7 fO l"t...E:A5ANf c:iROVE: t7RIVE:. FIRE: Fl...OW5 Of 1'70 c:il"M Af 170-rH FIRE: HWR/1Nf5 t/UE: fO ONE: CONNE:C110N POINI. 1 ************************************************ S U M M A R Y 0 F 0 R I G I N A L DAT A ************************************************ CyberNet Version 2.18. Copyright 1991,92 Haestad Methods Inc. Run Description: Basic Network Drawing: PF-WAT P I P E L I N E D A T A STATUS CODE: XX -CLOSED PIPE CV -CHECK VALVE BN -BOUNDARY NODE PU -PUMP LINE RV -REGULATING VALVE PIPE NUMBER 10-BN 20 30 40 60 70 80 90 J UN c T I JUNCTION NUMBER 0 NODE NOS. #1 #2 0 10 20 10 30 20 40 30 30 60 40 70 70 80 80 60 N N 0 D JUNCTION TITLE E LENGTH (ft) 505.0 125.0 103.0 94.0 301.0 550.0 283.0 488.0 DAT A EXTERNAL DEMAND (gpm) DIAMETER (in) 8.0 12.0 8.0 6.0 6.0 6.0 6.0 6.0 ROUGHNESS COEFF. 150.00 150.00 150.00 150.00 150.00 150.00 150.00 150.00 MINOR LOSS COEFF. 6.00 0.00 2.00 0.50 2.80 1. 30 0.40 0.80 c~~ _-1o !!::>" fjt2::J .q 7 JUNCTION ELEVATION CONNECTING PIPES (ft) BND-HGL (ft) 495.00 ------------------------------------------------------------------------------ 10-1 12"X8" TEE 0.00 274.00 10 20 20-1 12"X6" TS&V 0.00 275.00 20 30 30-1 6"TEE AT PFD 0.24 272.00 30 40 60 40-1 FIRE HYDRANT 750. 005 269.00 40 70 60-1 FIRE HYDRANT 75!:i~ l 263.00 60 90 70-1 PF-6"BEND 254.00 70 80 80-1 PG-6X90 BEND 3.17 254.00 80 90 7f?o ( SfVVle ebc'h f:H- +-----------------------------------------------+ MAXIMUM DIMENSIONS Number of pipes . . . . . . . . . . . . . . . . . . . . . . 25 Number of pumps . . . . . . . . . . . . . . . . . . . . . . 10 Number junction nodes................. 25 Flow meters . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Boundary nodes . . . . . . . . . . . . . . . . . . . . . . . 10 Variable storage tanks . . . . . . . . . . . . . . . 10 Pressure switches . . . . . . . . . . . . . . . . . . . . 10 Regulating Valves..................... 10 Items for limited output . . . . . . . . . . . . . 25 limit for non-consecutive numbering . . 270 +-----------------------------------------------+ Cybernet version 2.18. SN: 1132184437-25 Extended Description: U N I T S S P E C I F I E D FLOWRATE ........... . HEAD (HGL) ......... . PRESSURE ........... . 0 U T P U T 0 P T I 0 N gallons/minute feet psig DAT A OUTPUT SELECTION: THE FOLLOWING RESULTS ARE INCLUDED IN THE TABULATED OUTPUT ALL CLOSED PIPES ARE NOTED ALL PIPES WITH PUMPS FOLLOWING PIPES 10 20 30 40 60 70 FOLLOWING JUNCTION NODES 10 20 30 40 60 70 MAXIMUM AND MINIMUM PRESSURES S Y S T E M C 0 N F I G U R A T I 0 N 80 90 80 NUMBER OF PIPES ................... (p) 8 NUMBER OF JUNCTION NODES .......... (j) 7 NUMBER OF PRIMARY LOOPS ........... (1) 1 NUMBER OF BOUNDARY NODES .......... (f) 1 NUMBER OF SUPPLY ZONES ............ (z) 1 2 ************************************* S I M U L A T I 0 N R E S U L T S ************************************* The results are obtained after 3 trials with an accuracy 0.00030 S I M U L A T I 0 N D E S C R I P T I 0 N CyberNet Version 2.18. Copyright 1991,92 Haestad Methods Inc. Run Description: Basic Network Drawing: PF-WAT p I p E L I NE R E s u L T s STATUS CODE: xx -CLOSED PIPE BN -BOUNDARY NODE PU -PUMP LINE CV -CHECK VALVE RV -REGULATING VALVE TK -STORAGE TANK PIPE NODE NOS. FLOWRATE HEAD PUMP MINOR HL/ NUMBER #1 #2 LOSS HEAD LOSS 1000 (gpm) (ft) (ft) (ft) (ft/ft) ---------------------------------------------------------------- ---- 10-BN 0 10 1509.50 15.17 0.00 8.65 30.05 20 20 10 -1509.50 0.52 0.00 0.00 4.17 30 30 20 -1509.50 3.09 0.00 2.88 30.05 40 40 30 -921.30 4.59 0.00 0.85 10.45 48.88 60 30 60 587.96 6.40 0.00 1. 93 6.67 21.28 70 40 70 171.30 1.19 0.00 0.08 1. 94 2.17 80 70 80 167.16 0.59 0.00 0.02 1.90 2.07 90 80 60 163.99 0.98 0.00 0.04 1.86 2.00 JUN c T I 0 N N 0 D E R E s UL T s JUNCTION JUNCTION HYDRAULIC JUNCTION PRESSURE JUNCTION NUMBER TITLE GRADE ELEVATION HEAD PRESSURE (ft) (ft) (ft) (psi) ----------------------------------------------------------------------------- 10-1 12 "X8" TEE 20-1 12"X6" TS&V 30-1 6"TEE AT PFD 40-1 FIRE HYDRANT 60-1 FIRE HYDRANT 70-1 PF-6 11 BEND 80-1 PG-6X90 BEND M A X I M U M AND M I N I M U M P R E S S U R E S JUNCTION NUMBER 70 80 MAXIMUM PRESSURES (psi) 88.39 88.12 1.18 274.00 470.66 275.00 464.68 272.00 459.24 269.00 456.34 263.00 457.97 254.00 457.36 254.00 V A L U E S JUNCTION NUMBER 40 30 197.18 85.44 195.66 84.79 192.68 83.50 190.24 82.44 193.34 83.78 203.97 88.39 203.36 88.12 S U M M A R Y 0 F I N F L 0 W S AND 0 U T F L 0 W S (+) INFLOWS INTO THE SYSTEM FROM BOUNDARY NODES (-) OUTFLOWS FROM THE SYSTEM INTO BOUNDARY NODES PIPE NUMBER 10 NET SYSTEM INFLOW NET SYSTEM OUTFLOW NET SYSTEM DEMAND FLOWRATE (gpm) 1509.50 1509.50 0.00 1509.50 **** CYBERNET SIMULATION COMPLETED **** DATE: 5/08/1997 T I ME: 10:09:26 HESTER ENGINEERING COMPANY 7607 Eastmark Drive, Suite 253-B College Station, TX 77840 ph:( 409)693-1 100 fx:( 409 )693-1075 email : HEC2000@aol.com * * * * * CONFIDENTIAL FAX ***** The documents accompanying this telecopy transmission contain information f rom the fi r m of Hester Engineering company which is confidential. The information is i ntended only for the use of the indivi dual or entity named on this transmittal sheet. If you are not the intended recipien t, you are hereby notified that any disclosure , copying , distribution or the taking of any ac tion in rel iance of the contents of th is telecopy information is strictly prohibited , and that the documents should be returned to this firm immediately. In this regard if you have received this telecopy in error, please notify us by telephone immediately so that we can arrange for the return of the original documents to us at no cost to you . Date : May 8, 1997 From: Michael G. Hester, P .E . To : Dean Schieffer fx : (903) 626-4156 Re: Pleasant Forest Subdivision Water Distribution An a l ysis Dean, I s p oke with Steve Ho meyer wit h the Ci ties Engineering Division and he has stated that since Plea s ant Forest Subdivision has only one water connection for the entire subdivision the water distribut i on analysis wi ll have to p rove t h at at least two fire hydrants will flo w at 75 0 gpm, stay b elow 10 fps a n d retain a minimum 2 0 psi residual pre ssure . I h ave r eran the analysis and an 8 " section of water line wi ll be re q uired f rom the frontage road to Pleasant Grove Drive (111 feet) . Th is will also require changing the 6 11 f it tings to 8 11 fitti ng s ..... rev iew and call w/qu e s tions. Hester , P.E. at ta chme nts: copies to : Copy to be mailed ND Page 1 of 1 Pages I I I DRAINAGE REPORT FOR PLEASANT FOREST SUBDIVISION COLLEGE STATION, BRAZOS COUNTY, TEXAS APPROVED FOR MARCH, 1 Submitted By : Michael G. Hester, P.E. Hester Engineering Company 7607 Eastmark Drive, Suite 253-B College Station, TX 77840 ( 409) 693-1100 fx :( 409)693-1075 CERTIFICATION I hereby certify that this report and accompanying drainage plan for the drainage des i gn was prepared by me in accordance with the provisions of the Cities Drainage Policy and Design Standards for the o wners thereo f . 1 G. Hester , P.E. ered Professional of Texas PLEASANT FOREST SUBDIVISION -CERTIFICATION -. ·. ": ~ DRAINAGE ANALYSIS INTRODUCTION TABLE OF CONTENTS EXISTING DRAINAGE BASIN DESCRIPTION PROPOSED DRAINAGE CONCLUSION KEY MAP PREDEVELOPMENT AND POSTDEVELOPMENT RUNOFF CALCULATIONS HYDRAULIC CALCULATIONS OF BEE CREEK TRIB . A PREDEVELOPMENT FLOWS POSTDEVELOPMENT FLOWS DRAINAGE AREA MAP TABLE OF CONTENTS INTRODUCTION: DRAINAGE REPORT PLEASANT FOREST SUBDIVISION COLLEGE STATION , TX MARC H, 1997 The proposed site is located along the State Highway 6 frontage road approximately 3 00 feet nort h of Mile Drive. The legal description is Plesant Forest Subdivision, Block One, Lots 1-35 and Block Two, Lots 1-4 and is 11. 43 acres . The proposed improvements include pavement, drainage and utility improvements for single family residential homes. The site consists of grassland with numerou s oak trees. The terrain slopes in a northwesterly direction toward and exi s tin g c h annel at approximately 2 percent . The latest Federa l Emergency Management Agency (FEMA) Flood Insu rance Rate Maps (48 0 41CO 1 63, 182 & 144C) shows that no portion of the tract is in the regu latory 100-year flood plain. The site is zoned R-1 (residential) and is being developed by Mr. Dean Schieffer , P.O. Box 7 0, Kurten, TX, (409)268-8403. EXISTING DRAINAGE BASIN DESCRIPTION : The proposed development discharges d i rectly into Bee Creek Tributary "A" Drainage Basin No. 4, Regulatory Ch annel Reach No. I which is a primary channel . This reach of Bee Creek is not in a "Special Drainage Basin and Channel Reach Design Standard'', Item D, of the College Station "DRAINAGE POLICY AND DESIGN STANDARD ", page 10 , requiring detention by ordinance. Ho wever this reach does require that the Minimum Floor Elevation be base flood plus 2 feet (page 11) . There is an existing creek (secondary creek) that runs along the southwest portion of the site which drains a basin of approximately 77 acres. This basin begi n s at Ro ck Prairie Road and drains north throu gh open ditches, even tually through a storm drainage system under S .H . 6 a n d then to Bee Creek. No improvements are planned for this channel. Fill material will be placed along the east side however this will not impact the drainage capacity of the creek due to its width. The Bee Creek Tributary "A" drainage basin drains approx imately 1100 acres to a ditch at Texas Avenue. Bee Creek Tributary "A" has a substantial flood plain width, at places being approximately 300 feet wide, it is very flat with a small pil ot channel and a very flat slope. City of College Station Stormw ater Management Plan , Figure IV -7 (page 40) show a Base Flood E l evation (BFE) o f approxima t ely 261.00 at ultimate development of the basin . The FEMA Flood Ins u rance Study (FIS), flood profiles (page 22P ) show that t h e BFE varies along the site from 256.00 at the downstream section of t h e site to 258.00 at the u pstream section of the si t e. This is based on existing conditions in J u ly, 1 992 . Section "A" of the profile (22P) is at the downstream section of the property . A drainage map has been incl u ded for review . PLEASANT FOREST SUBDIVISION -PAGE 1 OF 3 PAGES PROPOSED DRAINAGE: The portion of the tract where the single family residential homes will be constructed begins at a highpoint along the S.H. 6 frontage road and drains directly into Bee Creek Tributary A. The proposed grading of the site will route the water along street sections and down to an outfall at Bee Creek. Small pilot channels will be constructed to channel the water to the Bee Creek pilot channel . An analysis of the street sections using a storm event of 10 years show that the streets with the minimum slopes will successfully carry the expected flow . No formal storm drainage system is proposed other than energy dissipaters at the outfalls and a storm drain pipe will be installed at the frontage road, however this is adjacent to a high point along the frontage road and a minimum pipe size will be required. Detention is not required by ordinance nor planned for the development due to its location on a Primary channel. The boundary of the subd ivision was p u rposely delineated to exclude the FEMA BFE. No portion of the development is in the 100 year flood plain. Fill placement is planned for the site to raise the lowest buildable lot to an elevation of 262. 00. No fill material will be placed in the floodplain An analyzes was prepared to determine any change in the water surface elevation due to the proposed improvements. Below is a table showing a summary of the results before and after the proposed site development. PREDEVELOPMENT CONDITIONS POST DEVELOP. CONDITIONS PREDEVELOPMENT STA. 2990 2765 ACRES 9.31 2.12 9.31 2.12 2505 2195 RUNOFF COEFF . 0.25 0.30 0.50 0.30 1865 QlOO cf s 34.50 61. 59 1 70 0 1450 1000 w.s. 261.16 260.53 259 .85 258.48 258 .19 25 7 .99 257.54 257.00 POST DEVELOPMENT STA. 2990 2765 2505 2195 1865 1 700 1450 1000 w.s . 261 .20 260.57 259.88 258.51 258.21 258.01 257.55 257.00 DELTA: 0.04 0.04 0 .03 0.03 0.02 0.01 0 .0 1 0.00 -A tail water surface elevation of 257. 00 was used to coincide with the FEMA data. PLEASANT FOREST SUBDIVISION -PAGE 2 OF 3 PAGES The table's show that the additional flow generated by the proposed improvements will not change the water surf ace elevation dramatically and therefore, detention is n o t required nor planned for the site. Storm runoff calcu lations for pre and post- development conditions has been included for review. CONCLUSION : This project is in compliance with the City 's Stormwater Design Standards. PLEASANT FOREST SUBDIVISION -PAGE 3 OF 3 PAGES K[e:Y MJ\JP PL-rfA5ANf' fORrf 51' 5Ur?D~V~5~0N COL-L-rfuf 5-f Af'~ONJ 11fXA5 PREDEVELOPMENT RUNOFF CALCULATIONS PLEASANT FOREST SUBDIVISION Quick TR-55 Ver.5.44 Executed: 06:15:46 S/N:l315430080 03-19-1997 PLASANT FOREST SUBDIVISION PREDEVELOPMENT CONDTITIONS * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I * A Where: Q=cfs, C=Weighted Runoff Coefficient, I=in/hour, A=acres adj = 'C' adjustment factor for each return frequency Subarea Descr. Runoff 'C' WOODLANDS 0.250 GRASSLAND 0.300 Area acres 9.31 2.12 Tc (min) Wtd. 'C ' 10.00 0.259 RETURN FREQUENCY = 5 years 'C' adjustment, k = 1 Adj. 'C' = Wtd.'C ' x 1 Adj. I 'C' in/hr 0.259 7.690 Total acres 11. 43 Peak Q (cfs) Quick TR-55 Ver.5.44 Executed: 06:15:46 S/N:l315430080 03-19-1997 PLASANT FOREST SUBDIVISION PREDEVELOPMENT CONDTITIONS * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I * A Where: Q=cfs, C=Weighted Runoff Coefficient, I=in/hour, A=acres adj = 'C' adjustment factor for each return frequency Subarea Descr. WOODLANDS GRASSLAND Runoff IC' 0.250 0.300 Area acres 9.31 2.12 Tc (min) Wtd. 'C' 10.00 0.259 RETURN FREQUENCY = 10 years 'C' adjustment, k = 1 Adj. 'C' = Wtd.'C' x 1 Adj. I 'C' in/hr 0.259 8.630 Total acres 11.43 Peak Q (cf s) ---~ Quick TR-55 Ver.5.44 Executed: 06:15:46 S/N:l315430080 03-19-1997 PLASANT FOREST SUBDIVISION PREDEVELOPMENT CONDTITIONS * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I * A Where: Q=cfs, C=Weighted Runoff Coefficient, I=in/hour, A=acres adj = 'C' adjustment factor for each return frequency Subarea Descr. WOODLANDS GRASSLAND Runoff 'C' 0.250 0.300 Area acres 9.31 2.12 Tc (min) Wtd. 'C' 10.00 0.259 RETURN FREQUENCY = 25 years 'C' adjustment, k = 1 Adj. 'C' = Wtd. 'C' x 1 ========================= ======== Adj. I 'C' in/hr 0.259 9.860 Total acres 11.43 Peak Q (cfs) --------/ 27 Quick TR-55 Ver.5.44 Executed: 06:15:46 S/N:l315430080 03-19-1997 PLASANT FOREST SUBDIVISION PREDEVELOPMENT CONDTITIONS * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I * A Where: Q=cfs, C=Weighted Runoff Coefficient, I=in/hour, A=acres adj = 'C' adjustment factor for each return frequency Subarea Descr. Runoff 'C' WOODLANDS 0.250 GRASSLAND 0.300 Area acres 9.31 2.12 Tc (min) Wtd. 'C' 10.00 0.259 RETURN FREQUENCY = 50 years 'C' adjustment, k = 1 Adj. 'C' = Wtd.'C' x 1 Adj. I 'C' in/hr 0.259 10.860 Total acres 11.43 Peak Q (cf s ) Quick TR -55 Ver.5.44 Executed: 06:15:46 S/N:l315430080 03-19-1997 PLASANT FOREST SUBDIVISION PREDEVELOPMENT CONDTITIONS * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I * A Where: Q=cfs, C=Weighted Runoff Coefficient, I=in/hour, A=acres adj = 'C' adjustment factor for each return frequency Subarea Descr. Runoff IC' WOODLANDS 0.250 GRASSLAND 0.300 Area acres 9.31 2 .1 2 Tc (min) Wtd. 'C' 10.00 0.259 RETURN FREQUENCY = 100 years 'C' adjustment, k = 1 Adj. 'C' = Wtd .'C ' x 1 Adj. I 'C' in/hr 0 .25 9 11 .64 0 Total acres 11.43 Peak Q (cfs) POST DEVELOPMENT RUNOFF CALCULATIONS PLEASANT FOREST SUBDIVISION Quick TR-55 Ver.5.44 Executed: 06:17:24 S/N :1315430080 03-19-1997 PLASANT FOREST SUBDIVISION POSTDEVELOPMENT CONDITIONS * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I * A Where: Q=cfs, C=Weighted Runoff Coefficient, I=in/hour, A=acres adj = 'C ' adjustment factor for each return frequency Subarea Descr. Runoff 'C' RESIDENTIAL 0.500 GRASSLAND 0.300 Area acres 9.31 2.12 Tc (min) Wtd. 'C' 10.00 0.463 RETURN FREQUENCY = 5 year s 'C ' adjustment , k = 1 Adj. 'C' = Wtd.'C' x 1 Adj. I 'C ' in/hr 0.463 7.690 Total acres 11.43 Peak Q (c f s) 40.69 Quick TR-55 Ver.5.44 Executed: 06:17:24 S/N:l315430080 03-19-1997 PLASANT FOREST SUBDIVISION POSTDEVELOPMENT CONDITIONS * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I * A Whe re: Q=cfs, C=Weighted Runoff Coefficient, I=in/hour, A=acres adj = 'C' adjustment factor for each return frequency Subarea Descr. Runoff 'C' RESIDENTIAL 0.500 GRASSLAND 0.300 Area acres 9.31 2.12 Tc (min) Wtd. 'C' 10.00 0.463 RETURN FREQUENCY = 10 years 'C' adjustment, k = 1 Adj. 'C' = Wtd.'C' x 1 ========================= ======== Adj. I 'C' in/hr 0.463 8 .630 Total acres 11.43 Peak Q (cfs) 45 .66 J Quick TR-55 Ver.5.44 Executed: 06:17:24 S/N:1315430080 03-19-1997 PLASANT FOREST SUBDIVISION POSTDEVELOPMENT CONDITIONS * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I * A Where: Q=cfs, C=Weighted Runoff Coefficient, I=in/hour, A=acres adj = 'C' adjustment factor for each return frequency Subarea Descr. Runoff 'C' RESIDENTIAL 0.500 GRASSLAND 0.300 Area acres 9.31 2.12 Tc (min) Wtd. , C' 10.00 0.463 RETURN FREQUENCY = 25 years 'C' adjustment, k = 1 Adj. 'C' = Wtd.'C' x 1 ========================= ======== Adj. I 'C' in/hr 0.463 9.860 Total acres 11.43 Peak Q (cfs) Quick TR-55 Ver.5.44 Executed: 06:17:24 S/N:1315430080 03-19-1997 PLASANT FOREST SUBDIVISION POSTDEVELOPMENT CONDITIONS * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I * A Where: Q=cfs, C=Weighted Runoff Coefficient, I=in/hour, A=acres adj = 'C' adjustment factor for each return frequency Subarea Descr . Runoff IC' RESIDENTIAL 0.500 GRASSLAND 0.300 Area acres 9.31 2.12 Tc (min) Wtd . IC' 10.00 0.463 RE TURN FREQUENCY = 50 years 'C' adjustment , k = 1 Adj. 'C' = Wtd.'C' x 1 ========================= ======== Adj. I 'C' in/hr 0.463 10.860 Total acres 11.43 Peak Q (cfs ) 57 .46 / Quick TR-55 Ver.5.44 Executed: 06:17 :24 S/N:l315430080 03-19-1997 PLASANT FOREST SUBDIVIS I ON POSTDEVELOPMENT CONDITIONS * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I * A Where: Q=cfs, C=Weighted Runoff Coefficient, I=in/hour, A=acres adj = 'C' adjustment factor for each return frequency Subarea Descr. Runoff 'C ' RESIDE NTIAL 0.500 GRASSLAND 0.300 Area acres 9.31 2.12 Tc (min) Wtd . 'C' 10.00 0.463 RE TURN FREQUENCY = 100 years 'C' adjustment, k = 1 Adj . 'C' = Wtd.'C' x 1 ========================= ======== Adj . I 'C' in/hr 0.463 11.640 Total acres 11.43 Peak Q (cfs) ---~~1 I HYDRAULIC CALCULATIONS OF BEE CREEK PREDEVELOPMENT FLOWS PLEASANT FOREST SUBDIVISION HEC-RAS Plan: Plan 01 Reach: BEE CREEK A 3/19/97 River Sta. Q Total Min Ch El ·w.s. Elev CritW.S. E.G. Elev E.G. Slope Vel Chnl Flow Area TopWidt oude#Chl (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) 2990 4000 .00 252 .50 261 .16 261 .38 0 .003324 5 .71 1350 .94 532 .99 0 .35 2765 4000 .00 252 .00 260 .53 260 .72 0 .002562 5 .05 1438.45 558.49 0 .31 2505 4000 .00 252.40 259 .85 260 .01 0 .002866 4 .72 1392 .13 466 .65 0 .31 2195 4000 .00 250 .60 258.48 258 .84 0 .004962 6 .86 1132 .57 506 .62 0.44 -----1865 4000 .00 250 .50 258 .19 258 .25 0 .000727 2 .7 1 2280 .02 610.40 0 .17 --·-~ ---1700 4000.00 250 .00 257 .99 258 .07 0 .001844 3 .71 2025 .52 879 .27 0 .24 --14 50 5000 .00 248 .30 257 .54 257 .63 0 .001618 3 .91 2171.48 658 .87 0 .23 1000 5000 .00 246.40 257 .00 254.44 257 .11 0 .000872 3 .69 2449.40 691 .00 0 .20 - g c 0 265 260 ~ 255 > Q) w 250 245 SCHIEFFER SUBDIVISION PREDEVELOPMENT t<r---------------BEE CREEK A -------------- -,--~ -,- 0 500 1000 Main Channel Distance (ft) I 1500 2000 Q100WS Invert SCHIEFFER SUBDIVISION Reach = BEE CREEK A Riv Sta = 2990 to 1000 PF#: 1 PREDEVELOPMENT ------- SCHIEFFER SUBDIVISION Reach = BEE CREEK A STA. 29+90 Riv Sta= 2990 PREDEVELOPMENT 264 .06 0 .06 5 I Q100WS • Ground • Bank Sta 262 260 g c 0 :;::::; 258 ct! > Q) UJ 256 254 • 2 52 --+----.-' T ----,------,---T r 0 200 400 600 800 1000 Station (ft) 264 262 260 g c 0 ~ 258 > Q) jjJ 256 254 252 SCHIEFFER SUBDIVISION Reach = BEE CREEK A STA. 27+65 Riv Sta= 2765 PREDEVELOPMENT ~------.06 --------0 r----.06 --- 5 T ,.-.,-.,-T .,--,-, T I 'I ,.. r 0 200 400 600 800 Station (ft) l 1000 Q100WS Ground • Bank Sta 264 262 260 g c 0 +; 258 ro > Q) w 256 254 252 SCHIEFFER SUBDIVISION Reach = BEE CREEK A STA. 25+05 Riv Sta= 2505 PREDEVELOPMENT ________ .06 --------6--1 .. --.06 -- 5 ---- r .-r T --.---r T --,.-~--.--,.-.., ,----T T ,-~-~1 0 200 400 600 800 1000 Station (ft) Q100WS Ground • Bank Sta g c 0 ~ > Q) UJ SCHIEFFER SUBDIVISION Reach= BEE CREEK A STA. 21+95 Riv Sta= 2195 PREDEVELOPMENT 264 ----------.06 _________ ....., 0 ~---.06 ----- 5 262 260 258 256 ---- 254 252 ·---250 ~-~ ----,--r -~--~ ---,--,-----,-I ,---, --. -..,.-- 0 200 400 600 Station {ft) l 800 Q100WS • Ground • Bank Sta g c 0 :.;:; ro > <I.> w 260 255 250 0 SCHIEFFER SUBDIVISION Reach= BEE CREEK A STA. 18+65 Riv Sta= 1865 PREDEVELOPMENT ---r ,- 200 -------- ---, I 400 Station (ft) -,--, I''---,, l 1000 1200 - Q100WS Gro~nd • Bank Sta g c 0 ~ > Q) w 265 260 255 250 SCHIEFFER SUBDIVISION Reach= BEE CREEK A STA. 17+00 Riv Sta= 1700 PREDEVELOPMENT >E-----------.06 ----------c--------.06 ---~ 5 -----·------· r -,----, I' ,---,-------, ' ..,~-,-,-,-l 0 200 400 600 800 1000 1200 1400 Station (ft) Q100WS • Ground • Bank Sta g c 0 ~ ro > Q) w SCHIEFFER SUBDIVISION Reach= BEE CREEK A STA. 14+50 Riv Sta= 1450 PREDEVELOPMENT 265 --~~~~.o6 ~~~~--01'E--~~~~~~.o6 ~~~~~~-- 5 260 I ~ 255 ~ 1 -I ! 250 245 ~ I ,.-.---r-,-T ' .-T .-1 -i---r-r-r I r T-T -,----, 0 200 400 600 1000 Station (ft) T ' l 1200 Q100WS Ground • Bank Sta @: c 0 ~ > Q) w 265 260 255 --j J SCHIEFFER SUBDIVISION Reach= BEE CREEK A STA. 10+00 Riv Sta= 1000 PREDEVELOPMENT 0 5 ---.06 ----- 245 -+----.---,--,-r T r ' T 1 1 ,-T ·--,---,-' I -,-----,--T -,-I -, ---.,. -,. ~ 0 20 0 400 600 800 10 00 1200 Stati on (ft) Q100WS Ground • Bank Sta HYDRAULIC CALCULATIONS OF BEE CREEK POSTDEVELOPMENT FLOWS PLEASANT FOREST SUBDIVISION HEC-RAS Plan : Plan 01 Reach: BEE CREEK A 3/19/97 River Sta. Q Total Min Ch El W.S. Elev CritW.S. E.G. Elev E.G. Slope Vet Chnl Flow Area Top Width Froude#Chl (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) 2990 4061 .59 252 .50 261.20 261.41 0 .003315 5 .72 1367.42 534 .26 0 .35 2765 4061 .59 252 .00 260 .57 260 .75 0 .002569 5 .06 1455.32 561 .51 0 .31 2505 ,, '1'.ii 4061 .59 252.40 259 .88 260 .04 0 .002875 4 .74 1405.08 467 .28 0 .31 2195 4061 .59 250 .60 258 .51 258 .87 0 .004961 6 .87 1146.46 508 .12 0.44 ··-1865 4061 .59 250 .50 258 .21 258 .27 0 .000740 2 .74 2292 .37 612 .02 0 .18 1700 4061 .59 250.00 258 .01 258 .08 0 .001860 3 .73 2041 .21 880 .70 0 .24 1450 5061 .59 248.30 257 .55 257 .65 0 .001642 3 .94 2179 .34 659 .60 0 .23 1000 ' 5061 .59 246.40 257 .00 254.47 257 .11 0 .000893 3 .74 2449.40 691 .00 0 .20 SCHIEFFER SUBDIVISION Reach = BEE CREEK A Riv Sta = 2990 to 1000 PF#: 1 POSTDEVELOPMENT g c 0 :;:::; ro > Q) w 265 260 255 250 245 SCHIEFFER SUBDIVISION POSTO EVELO PM ENT ---------------BEE CREEK A -------------~ r --,----.-T -, "T 0 500 r .--T r T 1000 Main Channel Distance (ft) -,-I r 1500 ~ l 2000 Q100WS Invert SCHIEFFER SUBDIVISION Reach = BEE CREEK A STA. 29+90 Riv Sta= 2990 POSTDEVELOPMENT 264 .06 0 .06 5 I Q100WS • Ground • Bank Sta 262 260 g c 0 :+;:; 258 ro > Q) j w 256 ~ 254 252 0 200 400 600 800 1000 Station (ft) 264 262 260 g c 0 +; 258 ro > Q.l w 256 254 252 SCHIEFFER SUBDIVISION Reach = BEE CREEK A STA. 27+65 Riv Sta= 2765 POSTDEVELOPMENT ---------.06 ------4 0 >E-IE --.06 ----""' -.--r 0 T----,-' 200 ' T -,- 400 Station (ft) 5 T r -,-- 600 800 T T ,--I 1000 Q100WS Ground • Bank Sta 264 262 260 g c 0 ~ 258 > Q) w 256 254 252 SCHIEFFER SUBDIVISION Reach = BEE CREEK A STA. 25+05 Riv Sta= 2505 POSTDEVELOPMENT --------.06 -------0 ----.06 ----""'>I 5 • ------i-.------r .-T --r -r--r· ,-r -r i--r r --.-~ 0 200 400 600 800 1000 Station (ft) Q100WS Ground • Bank Sta g 258 c 0 :;:::; ro > Q) jjJ 256 ~ -j 254 252 250 0 SCHIEFFER SUBDIVISION Reach= BEE CREEK A STA. 21+95 Riv Sta= 2195 POSTDEVELOPMENT .06 ' -----,---r --, T T --,-' 200 --. --r-' 400 Station (ft) 0 .06 5 1 • I / T -, ----,-T ,----T --.--T 600 l 800 Q100WS ---Ground • Bank Sta g c 0 ~ > <ll UJ 265 260 255 250 SCHIEFFER SUBDIVISION Reach = BEE CREEK A ST A. 18+65 Riv Sta = 1865 POSTDEVELOPMENT ---------.06 --------~0 ~----.06 ------ 5 L r r -, .---,--, T T 'T,_,--,~ 0 200 400 600 800 1000 1200 Station (ft) Q100WS Gro-und • Bank Sta g c 0 +; ro > Q) iJJ 265 260 255 250 SCHIEFFER SUBDIVISION Reach= BEE CREEK A STA. 17+00 Riv Sta= 1700 POSTDEVELOPMENT ----------.06 ----------.....-----.06 ----- 5 ·------·-- -,-----,-,-' T --,. ' --,-----,-l "T 0 200 400 1200 Station (ft) 1400 Q100WS Ground • Bank Sta g c:: 0 265 260 ~ 255 > Q) LiJ 250 245 SCHIEFFER SUBDIVISION Reach= BEE CREEK A STA. 14+50 Riv Sta= 1450 POSTDEVELOPMENT ----------.06 -----~0--------- 5 TT T~~~~-, r ~' o -r--r-r T 0 200 400 600 Station (ft) .06 ------- T I--, r 1000 1200 Q100WS ----Ground • Bank Sta g c 0 265 260 ~ 255 > Q) LiJ 250 245 SCHIEFFER SUBDIVISION Reach = BEE CREEK A STA. 10+00 Riv Sta= 1000 POSTDEVELOPMENT __________ .06 _______ 0 r~-.06 --- 5 ,--, -----,-r---r T ~~~-,---,------,-~~-' -,-'--r ,--------, 0 200 400 600 800 1000 Station (ft) 1200 Q100WS Ground • Bank Sta STORM WATER POLLUTION PREVENTION PLAN PLEASANT FOREST SUBDIVISION PHASE ONE COLLEGE ST A TION, BRAZOS COUNTY, TEXAS APRIL, 1997 Prepared By: Michael G. Hester, P.E. Hester Engineering Company 7607 Eastmark Drive, Suite 253-B College Station, TX 77840 ( 409) 693-1100 fx:{ 409)693-1075 PLEASANT FOREST SUBDIVISION PHASE ONE STORM WATER POLLUTION PREVENTION PLAN SITE DESCRIPTION PROJEC T NAME AND LOCATION : Pleasant Forest Subdivision, Phase One 300 feet north of Mile Drive College Station , Brazos County, Texas OWNER & DEVE LOPER : Mr. Dean Schieffer P.O. Box 70 Ku rten, TX 77862 (409)268-8403 DESCR IPTI ON : This project will consist of: Street, Drainage and Utility Improvements for a single family residential subdivision. Soil Disturbing Activities Include: Clearing and Grubbing, installing a stabilized construction entrance, erosion and sediment controls; grading; drainage; utilities, construction of curb and gutter; roadway; and preparation for final planting and seeding. RUNOF F COEFF ICI ENT : Final Coefficient of runoff for the site will be C=0.5 SITE AR EA: Approximately 10 acres which will be affected by construction activities. SEQUEN CE OF MAJOR ACT IVITIES : 1 . Install stabilized construction entrance 2. Install silt fencing 3. Clear and grub 4 . Install utilities, storm sewer, curb and gutter 5. Apply pavement to roadways 6. Complete grad ing and install permanent seeding 7. When all construction activity is completed the site is stabilized , remove silt fence and reseed any area disturbed during construction. PLEA SANT FOREST SUBDIV ISION STORM WATER POLLUTION PREVENTION PLAN -1O F 4 PAGES EXISTING DRAINAGE BASIN DESCRIPTION : The proposed development discharges Creek Tri b utary "A" Drainage Basin No. 4 , Reach No . I. directly into Bee Regulatory Channel PROPOSED DRAINAGE: The proposed design will route the flow across the site and discharge it into Bee Creek Tributary "A". CONTROLS EROSION AND SEDIMENT CONTROLS : Temporary Stabilization Areas where activity t emporarily cea s es for at leas t 21 stabilized with t e mporary seed no later t han 14 last construction activity in that area. All material will be seeded. Structural Practices construction d a ys will be days from the proposed fill Silt fencing and/or hay bales will be installed at all outfalls , areas where water runs off the site. Inlets under construction will have silt fencing or hale bales placed around the perimeter of the inlet. All construc t ed inlets will have sandbags p l aced in front of the throat to collect sediment but allow flow of water into the inlet . Storm Water Management Storm water drainage will be provided by ·curb and gutter , storm sewer and catch basin, for the developed areas. All areas affected by construction wi l l be fine grade d and h ave permanent seeding. The remainder of the area will r e main in its natural state . The storm water discharge at Bee Creek Tributary "A" has an energy dissipater and will be stabilized with rock rip rap. Offsite Vehicle Tracking A stabilized con struction entrance has been provided to help reduc e ve h icle tracking of sediments. The paved street adjacent to the site entrance will be swept daily t o remove any excess mu d , dir t or rock tracked from the site. Dump trucks hauling material from the construction site will be covered with a tarpaulin. TIMING OF CONTROLS/MEASURES As indica t ed in the Sequence of Major Activities , the siltation fencing will be constructed prior to cleari ng and grading of any port i ons of the site. Areas where construction activity PLEASANT FOREST SUBDIVISION STORM WATER POLLUTION PREVENT ION PLAN -2 OF 4 PAGES temporari l y ceases for more than 21 days will be stabilized with a temporary seed or mulch within 14 days of the last disturbance. Once constru ction activity ceases pe rm anently in an area, that area will be stabilized with permanent seed and or mulch . After the entire site is stabilized, the accumulated sediment will be removed from the silt fencing, disposed of properly and the silt fencing removed. CERTIFICATION OF COMPLIANCE WITH FEDERAL, STATE, AND LOCAL REGULATIONS The storm water pollution prevention plan reflects City of College Station requirements for storm water management and erosion and sediment control. To ensure compliance, this plan was prepared in accordance with the College Station Drainage Policy. There are no other applicable State or Federal requirements for sediment and erosion site plans (or permits), or storm water management site plans (or permits). MAINTENANCE/INSPECTION PROCEDURES EROSION AND SEDIMENT CONTROL INSPECTION AND MAINTENANCE PRACTICES MAINTENANCE/INSPECTION PROCEDURES These are the inspection and maintenance practices that will be used to maintain erosion and sediment controls. All control measures will be inspected at least once each week and following any storm event of 0.5 inches or greater. All measures will be maintained in good working order; if a repair is necessary, it will be initiated within 24 hours of report. Built up sediment will be removed from silt fence when it has reached one-third the height of the fence. Silt fence will be inspected for depth of sediment, tears, to see if the fabric is securely attached to the fence posts, to see that the fence posts are firmly in t he ground. Temp orary and permanent seed ing and planting will be inspected for bare spots, washouts , and healthy growth. PLEASANT FOREST SUBDIVISION STORM WATER POLLUTION PREVENTION PLAN -3 OF 4 PAGES A maintenance inspection report will be made after each inspection. The inspection report form will be prepared by the owner and filed for record. A site superintendent , will be responsible for inspections, maintenance and repair activities, and fi ll ing out the inspection and maintenance report . Non-Storm Water Discharges It is expected that the following non-storm water discharges will occur from the site during the construction period . . Water from water line flushing. POLLUTION PREVENTION PLAN 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 person s 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. Mr. Dean Schieffer P.O. Box 70 Kurten, TX 77 862 (409) 268-8403 PLEASANT FOREST SUBDIVISION STORM WATER POLLUTION PREVENTION PLAN -4 OF 4 PAGES >-> I w 1- <1: I- ll) Pl-[f/\51A~~I f0Rf;51 5UB D~V ~5~0N PH A 5t:: ON[; COl-l-F:Cif 5f'Af'IONJ BRAZ05 COUN fYJ ffXA5 PRC::P ARC::D BY: Michael Ci. He5-ter, P .f:. Hf:5ft::R f:NCilNC::f:RINCi COMP f\NY 76 07 f:A51MARK DRIVE:, 5Ulft:: 205-B COL.L.f:Cif: 51A110f\J, IX 77 840 ( 409) 695-1 100 fx:C 4C19) 69?-1070 1511..-'f fE:NCE: Nore : 5 11..-'f fE:NCE: ANt7 HAY l3AL.E:5 5HAL-L l3E: PL-ACE:t7 IN l3E:E: C RE:E:K AL.O NC< t71"fCHE:5 cur 'fO "fHE: MAIN CHANNE:L-. HAY BALES ANO S ILT FENC E TO BE U S ED IN AREAS OF DRAINAGE FLO W. P OSTS (O N STAK ES) AS REQUIRED TO MAINTAIN NATURAL GROUND c I 1,r=: I BURY BOTTO M FLAP 510RM WAffR POL-L-U110N PRl::Vl::N110 N 5 1-rf MAP 5E:t71 ME:N'f CON'fROL- c:iNERAL NGre 5: AN NOi C N011CE: Of INfENO 51-W-L BE: '.:'£N'f 'fO 11-tt:: E:l"A 2 t7AY5 BE:FORI'.O ANY CON5'fRUC110N BfC<IN5 . 11-te CONIRAC'fG!< 51-W-L l"l<!':YeN'f MA'fE:RIAL , l?eBRl5 AN!/ 5 11..-'f FROM eXl11NC< rHe CON5'fRUC110N 51-rE: BY 1')-f: use Of H.N-e BALe5 AN!/ 51L 'f FE:NCINC<. 11-te CONIRAC'fG!< SHALL l"l<!':l"ARE: A 'M:'.t::KL. Y l<!':l"OR'f l?e5Ct<IBINC< 11-lf CONl/1110N Of rHf l"OLL-U110N l"t<GreC110N 5Y51'E:M . AL50 AF'fE:R e.ACH 05 " GI< C<Rt::A'fE:R RAIN E:YeN'f. H.N-e BALe5 AN!/ 51L 'f FeNCINa SHAL L Be l"L.ACel/ AROLJN!? ALL MANHOL.e5 AN!? INLe'f t?URINC< CON5'fRUC11 0 N f'O l"i<!':Ye N'f SE't?IME:Nf' FROM a E:rnNc; IN'fO rHe 5'f0RM SE''M'.'.R 5Y5 1'E:M . fHE: CONIRAC'fG!< SHALL Be Rt::5PON51~e FOi< l<!':M OVIN C< ALL SE'l?IMeN'f CON'fROL 1?ev1ce 5 .AFrer< 1l£ CON5'fRUC110N 15 COM l"Lere AN!/ 11-te l"LAN'fE:t? ,ARl;A'5 HAVE: BeeN 5f'ABILIZ et7 . PL-l::A5ANI f ORf 51 5UBt?IV l5 10N, PHA51:: ONE: CO L-U::ae 51AllON, BRAZ05 COUNIY, -rx f'.PRIL. 1997 O VvNE:R e. t7E:VE:L-OPE:R t7E:AN 5CHIE:ffE:R P.O. l30X 70 KURreN. fX ( 409) 268 -840~ PRE:PARE:t7 l?Y: MICHAfL a . HE:5lfR, P.e . Hl::51ER ENCi lNEERINCi CO M PANY 760 7 E:AS'fMARK t7 RIVE:. 5 Ul lf 2 ?~-l3 COL-L-eae 5 'fA'flO N , fX 77840 ( 409 ) 69~-1100 THIS FORM REPLACES PREVIOUS FORM 3510-7 (8-92) Form Approved . OMB No. 2040-00M . Please See Instructions Before Completlna This Fonn Approval..._ 1-31-N &EPA United States Envlrorvnental Protection Agency NP DES Washington, DC 20460 FORM Notice of Termination ~on of Coverage Under a NPDES General Permit for Storm Water lscharges Associated with Industrial Activity Submission of .this Notice of Termination constitutes notice that the pa~ Identified In Section II of this form Is no lo~er authortzed to discharge storm water associated with Industrial activity under the NPDES program. ALL NE ESSARY INFORMATION MUST BE PRO IDED ON TiilS FORM. I. Permit Information .. D D NPDES Storm Water l I Check Here if You are No Longer Check Here if the Storm Water General Permit Number: I I I I I I I I the Operator of the Facility: . Discharge is Being Terminated: II. Facility Operator 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 I Phone: I I I I I I I I I I I Address: I I l l 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 . 1 I LLl ZIP Code: I -I City: I I I I I I I I I I I I I I I I I I I I I State: I I I ·I I I I I I Ill. Facility/Site Location 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 I 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 LLl ZIP Code: I -I City: I 1 I I I I I I I I I I I I I I I I I I I State: I I I I I I I · I I til!iiUd e: 1 I I I I I I Longitude: I I I I I I I I Q"i;rter: l_i_J Section: u.J Township: I I I I I Renge:I 1· I I I TV. Certification: I certify under penal~ of law that all storm water discharges ~ssoclated with lnduslrlal activity from the Identified facility that "are authorized by a NPDES ¥eneral permit ave been eliminated or that I am no longer the operator.of the facility or construction site . I understand that by submitting this Notice of ermlnation, 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 lndustrlal activity to waters of the United States Is unlawful under the Clean Water Act where the cfischarge Is not authorized by a NP DES 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. . 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: • . Instructions for Completing Notice of Termination (NOT) Form Who May Flle a Notice ofTtrmlnatlon (NPT) Form Where to Flit NOT Form Permittees who are presently covered under an EPA-iuued National Pollutant Send this form t.o the the following address : Discharge Ellmlnation System (NPDES) General Permit Qnduding the 1995 Storm Water Notice of Tennination (4203) Mull-Sedor Permit) for Storm Water Dicharges Associated with Industrial Activity may submit a Notice of Termination (NOT) form when their ~cili ties no longer 401 M Street, S.W. have any storm water discharges associated with Industrial activity as defined in Washington, DC 20460 the storm wa1er regulations at 40 CFR 122.26(b)(14), or when they are no longer the operator of the facilities. . For conslnldlon adlvltles, ellmlnatlon of all storm water discharges associated Completing tht Form with lndustrlal adMty occurs when dislutbed aoils at the construction site have Type or print. using upper-ease letters, in the appropriate areas only. P~ase been llnally stabilized and temporary erosion and sediment control measures place each character between the marks. Abbreviate if necessary to stay within have been removed or will be removed at an appropriate time, or that an storm ·the number ot ~ allowed for each Item. Use only one space for breaks water discharges associated with industrial activity from the construction site that between words, but not for punctuation marks unless they are needed to darify are authorized by .a NPDES general pennil have othelwise been eliminated . Final your response . If you have any questions about this form, telephone or write the stabilization meana that au soll-disb.Jrblng adivities at the site have been Notice ot Intent Processing Center at (703) 931-3230 . completed, and that a uniform perennial vegetative cover .with a density of 10·~. of .. I the cover for unpaved areas and areas not covered by permanent structures has been established. or equivalent permanent stabilization measures (such as the use ot riprap. gabions. or geotextiles) have be'?n employed . EPA F0rm 3510.7 (8-98) . I -~ • ln1tnlctlon1 ·EPA Fonn 3510-7 Notice of T•nnlnatlon (NOT} of Cov•rag1 Und.r Tiit NPCES General Ptnnlt for Stonn Wat.r Clsc:hargff Aaaoclat.d With lndultl1al Activity s.c:tlon I ~nnlt lnfonnatlon Enter the existing NPCES S1orm Water General Permit number uslgned to the facllity « site identified ii Section Ill. If you do not know the permit number, telephone or write your EPA Regional atOnn water oontact penon. Indicate your reason for submitting this Notice of Ter:rrination by checkng the appropriate box: It Iller• has been a chanQe ot operator and you are no long« the operator · ot the facility or site Identified ii Section Ill, check the corresponding box. If al storm water discharges at the facility or site identified ii Section Ill have been terminated, check the corresponding box. Stctlon U Facility O~or lnfonnatlon Give the legal name of the person, firm, pliblic organization, or arry other entity that operates ihe facility or site descrt>ed ii this application. The name ot the operator may or may not be the same name as ~ facity. The operator ot the fac:illty Is the legal entity which controls the facility'• operation , rather than the Plant or site manager. Do not use a colloquial name. Enter the complete address an4 telephone number of the operator. · • s.ctlon ru Ftclllty/Sltt Location lnfonnatlon Enter the facility'~ or de's oll'lcial or legal name and complete address, including city, state and ZIP code. If the facility lacks a street address , ildlcate the state , the latitude and longitude of the facility to the nearest 15 seconds, or the quarter, section, township, and range (to the nearest quarter section) of the approximate :t:enter of the site . ,... Stctlon fl/ Ctrtlfleatlon Federal stall.Iles provide for severe penalties .for submitting false Information on this app6cation form. Federal regulations require this application to be signed as follows : For 1 corporation: by a responsible corporate olflcer, which means : !~ president, seaelaly, treasurer, or vice-president or the corporation in charge of a principal busineu function , or any other person who perfonns similar policy or decision makilg functions , or (i) the manager of one or more manufacturing, production, or operating facilities employi'lg more than 250 persons or having gross annual sales or expenditures exceeding $25 million (in second~uarter 1980 dollars), if aulhortty to sign documents has been nsigned or delegated to the manager In ·accordance wtth corp0rate procedures ; · For 1 pattnershlp or sole proprie~ip: by a general partner or the proprietor, or For 1 municipality, State, Federal· or other pu~fic fac17ity: by either a principal executive officer or ranking elected ofl'lclal . Paperwork Reduction Act Notice Public reporting burden for this application is estimated to average 0 .5 hours per application, including time for reviewing instructions, sea rching ex isting daia sources, gathering and maintain ing the data needed, and completing and reviewing the collection of information . 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 this burden to: Chief, Information Policy Branch, 2138 , U.S. Environmental Protection Agency, .C01 M Street. SN, Washington , DC 20460, or Director. Office of Information and Regulatory Affairs, Onlce of Management and Bud~et, Washington, DC 20503 . . ,... ~ . ... f, • • ln1tnicUona. EPA Fonn 351G-7 Notice of Tennlnatlon (NOT) of Coverage Under Th• NPOES G1n1ral Ptnnlt for Stonn Wster Ol1chargn Asaoclattd With lndultrtal AcUvlty Sec:tlon I Pennlt lnfonnatlon Enter the existing NPOES Storm Water General Permit numb« assigned ID the facltity or site identified In Section Ill. If you do not know the pennlt number , telephone 0< write y.our EPA Regional atOrm water c:ontact pel'$0!\. Indicate your reason for submitting this Notice of T ~ by checitilg the appropriate box: ·.,there has been a c:hanoe of·operator and you are no lonQer the operator · of the facility or site ldentffied In Section Ill, chec:lt the corresponding box. If al storm water discharges at the facility or alte identified in Section Ill have been terminated, check the corresponding box. Section U Facility Operstor lnfonnatlon Gt.oe the legal name of the person, firm, p(Jblic organtz:atlon, or arry other entity that opeiates ttie faCJlity or aite desai>ed In this application. The name of the operator may or· may not be ttie same name as the fdty. The operator of the facility Is the legal entity which controls the facility'• operation, rather than the .Plant or site manager. Oo not use a colloquial name . Enter the complete address and telephone number of the operator. · • Section n1 Faclllty/Sltt. Loutlon lnfonnatlon Enter the facility's or site's olTiclal or legal name and complete addre&S, Including city, atate and ZIP code. If the facility lacks a street addre&S, Indicate the state, the latitude and longitude of the facility to the nearest 15 a.econds, or the quarter, sedion, township, and range (to the nurest quartef section) of the approximate :center of the site . ·. ,... s.ctlon rv Ctrtlflcstlon Federal 1tab.rtes provide for severe penalties .for submitting faise information on this application form. Federal regulations require this application to be signed as followa : For 1 corpon1tion: by a responsible corporate officer, which means : {~ president. secretary, treasurer, or vice-president of the corporation in charge of a principal businesa function, or any other person who performs similar policy or decision making functions, or (i) the manager ol one or more manufacturing, production, or operating facilities employing more than 250 persons or having gross annual sales or expendit!Jres exceeding $25 million (in second-quarter 1 gso dollars), If authortty to algn documents has been assigned or delegated to the manager In ·a=rdance with corp0rate procedures; · For a f)4rtn&r3h/p or sole proprie~ip: by a general partner or the proprietor; or For a mvniclf>4/ity, Stale, F&deral, ·or other public fac11ity: by either a principal executive officer or ranking elected official. Paperwort Reduction Act Notice Public reporting burden for this application is estimated to average 0 .5 hours per application, including time for reviewing instructions , searching ex isting daia sources, gathering and maintaining the data needed, and eompleling and reviewing the collection of information. Send comments regarding the burden estimate , any other aspect of the collection ofinformation, or suggestions tor improving this form, including any suggestions which may increase or reduce this burden lo: Chief, Information Policy Branch , 2136, U.S. Environmental Protection Agency, <401 M Street. SW, Washington, DC 20460 , or Director, Office of Information and Regulatory Affairs, Ollice of Management and Bud~et. washington, DC 20503. ....... ~ . ·' t • THIS FORM REPLACES PREVIOUS FORM 3~10-6 (8-92) See Reverse for Instructions Form Approved. OMS No.. 204o.ooaa Approval u;n.: &-31-11 NPDES FORM &EPA United States Environmental ·Protection Agency Washington, DC 20460 Notice of Intent (NOi) for Stonn Water Discharges Associated with Industrial · · · Activity Under a NPDES General Permit · . Submi11ion of this Notice of Intent con1titut11 notice thet the perty identified in Section II of this form intend• to be euthorlzed by 11 NPDES permit issued for .storm water disch11rg11 associated with Industrial activity in the State identified in Section Ill of this form. Becoming 11 permittee obllgat11 such discharger to comply with the terms and conclition1 of the permit. ALL NECESSARY INFORMATION MUST BE PROVIDED ON THIS FORM. I. Permit Selection: You mu•t indicate the NPDES Storm Water general permit under which you are applying for coverage. Ch.eek one of th1111. Baseline D Baseline D Multi-Sector o Industrial Construction (Group Permit) II. Facility Operator lnformlition Name: Ll__,,1_..;1.__.,__,1_L1__,,1__.1.__~,__,1_._, _,_,__,1_L1_,_1__,1_L1__,,1__,1'--~'__,,,__.1'--~'--''-1'--~'--''-L1-L1--'I Phone:~IL~·..1.1__.1.__~l--'1-Lr-Ll..-.J1L--i1_J1__il Address: I 1 1 1 1 1 1 1 1 1 1 1 1 1 r ·1 1 · 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I Status of . D o .wner/Operator: City: I . I I ·I Ill. Facility/Sita Location Name: I I I I I 1 I State:LLl I I I I I ZIP Code: I I I I I Is the facility located on D Indian Lands? (Y or Nl Address:! L--1.1_1.__.1__,1_· L1-L1--'1'--~1__,1_·._1 _,_1__,1_._1_,_1__,1_L1.....1.1__.1'--~1.....1.1__.1'--~1__,1_1.__~1--'1-L1-L1--'1'--~1--'1.-..Jl'-~~~~~~~~~~~--1 City: .. I __.1__.1.__.._1 _..1_._1 ___.1__,1.__ ... 1 _..1_._1 _..1 __.1_._1 _..1 __.1_._, ___.1__.1.__._1 __.1__,1.__._1 __.r State: LLl ZIP code: l.__,_1 _...1_~1 __,1_L1 _-..1.'--'l'--J..1 ....... 1__,I Latitud't: _I _-_1 _._I _._1 _._I _._1 _.I Longitude:._! _.1...._.1__.l__.1__._l~1 __,I Quarter: LJ Saction:L.i_J Township: ._I _.._1 _,_1 .....;1.___,I Range: .._I _,_1 _._1 _,_1 _,I · IV. Sita Activity Information MS4 Operator Name: I 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I I I I I J RecaivingWaterBody:IL.....1.1__.1.__.1__,1_._1_,_1__,1.__._1__.1__,1.__._1__,1_._1 _,_,__,,_._1r=1~1===1==1~1:::::~1~1==I'...-::---:--:-~~-~..;._-------~ Mylt!-Soctcir Permit Appljconts Only· If you· are filing as 11 co-pormittae, enter storm water general permit number : SIC orDesignated Activity Coda: · Primary: I I I I 2nd: l..._~1 __,_,__,,-.JI B1111d on the instructions provided in Addendum H of the Multi-Sector permit, ere 1peci11 identified in Addendum H in proximity to the storm water dischergH to be covered under this permit, or the areas of BMP construction to control tho11 storm water discherges7 (Y or Nl ls the facility required to submit monitoring data? (1, 2, 3, or 4) If You Have Another Existfng NPDES Permit. Enter Permit Number: I. 1 1 1 1 1 1 , D I I Will construction (lend disturbing ectivitios) be conducted for storm water controls? (Y or Nl D D D Is eppllcent subject to and in compliance with 11 written historic croservation aaroement7 CY or Nl V. Additional Information Required for Construction Activities Only Project Start Data: Completion Dete: L ,__.__I ..._1 -'LI ....... 1__.· l Estimated Area to be Oi(Jturt:·,11 !in Acres): L ,_..1 __,,_,..._.._, --'I Is the Storm Weter Pollution Prevention Plan in compliance with State end/or Loe.. D sediment ti rtd erosion plans? (Y or NI 1--------------.c'·=-==·-""'"' -------------------------------"""" VI. Certification: The certification statement in Box 1 epplies to All applicants. The certification statement in Box 2 applies ~to fnciliti111 applying for the Multi-Sector storm water goner .. ~rmit. BOX 1 .All APPLICANTS: I certify· under penalty of ·law that this · document and all attachments were prepared under my direction or s~pervision in accordance with 11 system designed to assure that qualified personnel properly gather end evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or . tho11 p11rB<>n1 directly responsible for gathering the Information, the information liubmitted Is, to the best of my knowledge end belief, true, · accurate, encl complete. I am aware that . there ere significant p11n11lti111 for submitting f11l111 information, Including tho possibility of fine end imprisonment for knowing violations. BOX 2 MULTI-SECTOR STORM WATER GENERAL PERMIT APPLICANTS ONLY: I certify under penalty of law that I have read and undar&t!'nd the Part l.B. eligibility requirement• for coverage under the Multi-Sector storm water general permit, including those requaremem1 relating to the P.rotection of sp11ci11 Identified In Addendum H. To the best of my knowledge, the dischargis covered under this permit, end conatruc:t>Oft of BMPs to control storm water run-off, are not likely to and will not likely 11dv11r11ly attKt ~ species identified in Addendum H of the Multi-Sector storm water general permit ot •• oth11rwi11 eligible for coverage due to previous au~horization under the Endangered S~ Act. To tho best pf my knowledge, I further certify that such disch11rg111, and constNct>on of BMPs to control storm water run-off, do not have an effect on proporti111 listed or eligible fot hong on the National Register of Historic PlecH under the National Historic Pr11111rv11tion Act, or •• otNrwise eligible for coverege due to 11 previous agreement under tho National Historic PrH-1MW' Act. I understand that continued coverage under the Multi-Sector general permit is cont1"09"C ICIQn meinteining eligibility as provided for in Pert l.B. · PrlntName:I ~__.1_1~~1__,1_~1__.•_1.._.1__,1~._1__.1_1.__._1__,1_Ll-Ll--'l-Ll-Ll--'l-L'-·~1--'1'--~1__,,1_1.__..1.1--'1'--~'--'' Dato: ,_j _._I _..1__.1_j1---... t ....... 1 ~PA Fonn 351o.6 18-981 .... f ..... ln1trvctlon1 • EPA Fonn 3510-' Notice Of lnt.nt (NOi) For Stonn Wiler Ol1ch1rg11 AHOCl1ted With lndu1tri1I Acttvlty To Be Covered Under a NPDES General Pennlt Who Muat Fiie A Nolke Of lnt.nt (NOi) Form . Federal law at 40 CFR Part 122 prohlblta pokrt ~-diadlarges ot st.onn water auoc:iated with industrial adMty to • watar body(IH) ol the U.S. without a National PoGutant Discharge Efimlnation . System (NPDES) permit. The operator ot an lndul1Jlal activity that hai auc:h a 11Drm waier dildlarge muat aubmlt • NOi to obtain c0veraga . under a NP DES StormWatar General Permit. If you have quN11on1 about whither you need a permit under the NPDES Storm Watar pft,gram, or r you need Information 11 ta whether a particular program la admlnister9CI by EPA or• atalll agency, telephone or writa to the Notice ot Intent Proc:eu.lng Centar at (703) 931-3230: 'Wh1ra To Fil• NOi Fonn NOi• must be aenl to the following addre11: Storm water Notice ol Intent (4203) 401 M SlrHI. S.W. W.lhlngton, DC 20460 Complttlng Th• Fonn You must type or print. ullng upper<aM letlel'I, In the appropnate are11 only. Pleaae place each character between the marlta. Abbreviate r nece111ry to 1tay within the number of c:h1racter1 allowed for each item. UM one apace for braakl between word1, bu1 not for punctuation marlta unll11 they ara needed to dalfy your respon11. · If you . have any question• on this form, cal th• Notice al Intent Proc:elling Center at (703) 831-3230. You muat indicate the NPOES storm watar general permit under which you are applying for coverage. Check one box only. Th• Baaelln1 Industrial al'ld B1~line Conalnldion permits were issued in September 199~ The Multi-Sedor Permit became .effective OQober 1, 1995. Section II Facility Operator lnfl?nnatlon Provide the legal name of th• pel'IOn, rvm, public organization, or any other entity that operates the f1cility. or lite described In this application. The name of th• operator may or may not be the same as the name of th• fac:lity. Th• reaponalble party la th• leg•I entity that controls the flc:lity's operation, rather than the plant or alta manager. Do not use a colloquial name. Enter the complete 1ddre11 and telephone number of th•. oi)erator. Enter the appropriate letter to Indicate the legal &talus of the operator of the facility: F • Federal; S "' State; M • Public (other than federal or state); p · • Private. Section Ill Facility/Site Location Information Enter 1he facility's or site'• olfic:ial or legal name and complete street addre11, induding city. atate, and ZlP code. If the facility or lite ladcl a street addre11, Indicate the stale and either the latitude and longitude of the facility to the nearest 15 seconds or the quarter. scelion, township, and range (to the nearest quarter section) of the appro~te center of the lite. Do not provide 1 P.O. Box number 11 the street address. Indicate whether the faciity is located on Indian .lands. Se t~o n IV Slh Activity lnfonnaUon If the storm water discharges to a municipal separate 1torm aewer syatem (MS4 ). enter the name of the operator of the MS4 (e.g .. munldpality name, county name) and the receiving w-'ter of the discharge from the MS4 . (A M&4 is defined as a con.;;;;nce or system of conveyances (induding roads with drainage systems, municipal streets , catch basins, curbs, guttera, ditches, man-made channels , or storm drains) that is owned or operated by• state, city, town, borough., county, parish , district. association, ar cithtir p ublic body which is designed or uaed for collecting or conveying storm water.) If the facii!y discharges storm water direcity to receiving water(•). enter the name ~f the receiving water(s). If you are filing as a c;:o..permittee and a storm water general permit number has been issued, enter that number in the space provided . Indicate the monitoring status al the facility. Refer to the permit for information on monitoring requirements. Indicate the monitoring status by entering one of the follOwin;: . 1 • Not subject to monitoring requirements under the condition• of the permit. 2 • Subject to monitoring requnments and required to submit data. 3 • Subject to monitomg requnments but not required to submit data. 4 ·• Subjec:t to monitomg requiremenll but i;;bmitting certir1C111ion for monitoring exdusion. List. In desoending order of 1ignlficance, up to · two 4-digit standard Industrial d111ific:ation (SIC) codes that best deaaibe the principal products or servicea provided at the facility or de identilied In Section 111 of this application. If you ara 1pplying for coverage un.der th• conslnldion general permit, enter ".CO" (which repreaents SIC codll 1500. 1799). For industrial 1dMlie1 defined in 40 CFR 122.28(bX14)(1}{X1) that do not have SIC codea that accurately deacribe the principal produdl produced or servic:ea provided use th• following 2<harader cod11. · ' HZ • H1Z1rdou1 waste treatment. storage, or disposal faciities, indudiiig those that are operating under Interim status. or a permit under subtitle C of RCRA (40 . CFR 122.26 (bX14)[rv)J; LF • Landfils, land application sites, and open dumps that receive or have received any Industrial wastes, induding thosa tt:i1t are subject to regulation under subtitle 0 ot RCRA (40 CFR 122.28 (bX14Xv)]; SE • Steam eledric power generating flcililies, induding coal handling sites [40 c'FR 122.26 CbX14Xwl~ TW • Tre1tment worlta treating domestic MWage or any other se-ge sludge or wastewater treatment device or system, used in the storage, treatment. recyding, and redamation of municipal or domestic sewage (40 CFR 122.26 CbX14)(lx)J; or, CO • Construction adivltiea (40 CFR 122.28 (bX14Xx)J . If there is another NP DES permit preaently. lsaued for the facility or site listed in Section Ill, enter the permit number. If 1n application for the facility h11 been submitted but no permit number h11 been assigned, enter the application number. Faciities applying for coverage under the Mutll-Sector storm wa"ter general permit must answer the last three qu11tion1 In Section IV. Refer to Addendum H of ~e Mutti-Sec:tor general permit for a list of species that are either propoaed or listed a1'threatened or endangered. "BMP" means "Beal Management Practices" that are uaed to control storm water diicharg11. Indicate whether any conslnlelion wil be conducted to instaa or develop storm water runoff controls. Section V Additional lnfonnation R1qulrad for Construction Ac:tlvlllu Only Conslnlc:tion activities must complete ·section V in addition to Sections I through IV. On:y construction adivilie• need to complete Section V . Enter the project start data and the estimated completion date for the entire development plan. Provide an estimate of the total number of aaes of the site on which soi wal be disturbed (round to the nearest acre). Indicate whether the storm water pollution prevention plan for the site is in compliance with approved stale and/or local sediment and erosion plans , permits , or storm water management plans. Stc:tlon V1 Ctrtiflcatlon c ederal statutes provide for severe penalties for submitting fa lse information on this application form. Federal regu lations require this application to be signed as fonows : For 1 cotp0t1tion: by a responsible corporate officer, which means: (i) president secretary, treasurer, or Vice-president of the corporation in charge of a principal business function. or any ·other pers0n who performs simKar policy or decision making functions, or (ii} the manager of one or more manufacturing, production . or operating facilitie s employing more thin 250 pe~n• or having gross annual r.ales or expenditures exceeding S25 milion (in MCOndCquarter 1980 dollars). if authority to sign documents has · been asslQned or delegated to the manager in ac:cordance with corporate procedures; . · For • partnership or sole proprietorship: by a general partner or the pro~rietor: or For• municip•fty. st•le, F1det1/, or other pubk f•ciity: by either a principal executive officer or ranking elected olfic:ial. Paperwor1t Reduction Act Notice Public reporting · burden for this appficatlon Is estimated to average 0 .5 hours per application, induding time for revlewWlg lnatM:tlons, aearchlng existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection ot information. Send oommenll regarding the burden estimate. any other asped of the colleelion of info1Tnat:o::. c:-auggeationa for lmprovittg t!ti:. bm. ir.::"c1""il '"' suggestions which may increase or reduce this burden to: Chief. Information Policy Branch, 2136, U .S . Environmental Prote<:tion Agency, 401 M Street. SW. Washington. DC 20460, or Oiredor, orra of lnlonnation and R19ulatory Al!a1rs . Offoee ol Management and Budget Washington, DC 20503 . ln1tnictlon1 • EPA Fonn 3610-6 Notice Of lntant (NOi) For Stonn Water Ol1charvt1 ,,uoclat.d With lnduatrlal Activity To e. Cover.cf Under a NPOES General Permit Who Muat Fiie A No!Jce Of lntant (NOi) Form . Federal law at "40 CFR Part 122 p!t)hlbltl ~ 80Ul'tle diacharg .. of alorm water aaaoc:iated with industrial actMly le • water body(lea) ol the U.S. without • National Polllllant Discharge Elimination System (NPDES) permit. The operator of an Industrial activity that h1i auch • atcrm weber dilctla1119 muat submit a NOi ie obtain c01111rage . under• NPDES-Stiirm-W.ter General Permit. If you have quNllona about whether you need • permit under th• NPDES Storm Water piogram, or r you need Information .. le whlllher • particular program la administered by EPA or• 11alll agency, telephone or write le the Notice of Intent Pnx:eulng Center at (703) 931-3230: Where To Fil• NOi Fonn NOia muat be sent le the following addreu: Storm Water Notice of Intent ("4203) "401 M Street, S.W . Washington, DC 2CM60 Completing The Fonn You must type or prinl. using upper<aae letters, In the appropriate areH only . Please place each charader between the markl. Abbreviate r neceuary le atay within the number of charadera allowed for each Item. UM one apace for bre•ka be1ween worda, bu1 not for punctuation marb unles.a they are needed to darfy your response . · 11 you · ha1111 any quealiona on this form, cal the Notice of Intent Proceulng Center at (703) 531-3230. Section 1 Permit S•IKllon You muat indicate th• NPDES atorm water general pem1't under which you are applying for covtirage. Chodl one box only. The BHellne lnduatrlal •!'Id Ba14!line Conatniclion permits were ~ed in September 1882,. The Multl-Sedor Permit became eftective October 1, 1995. Section JI Facility Operator lnft?rmatlon Provide tho. legal name of the person, rvln , public organlz.alion, or any other entity that operat.ea the facility or aite described In this application. The name of the operator may or may not be the aame aa the name of the faclity. The reaponaible party la the legal entity that contn>la the taclity'a operation, rather than the plant or alta manager. Do not use • colloquial name. Enter the complet.e addreu and telephone number of the . oi)erator. Enttsr the appropriate letter lo Indicate the legQJ 'tatua of the operator of the facility: F • Federal; S = State; M " Public (other than federal or atat.e); p ·" Private. Section Ill Facllity/Sltt Location Information Enter1he facility'• or aite 'a official or legal name and complete ·atreet addreu, induding city, at.ete , and ZlP code. If the facility or ait.e lack.I • atrfft addreu, indicate the st.ete and either the latitude and longitude of the faciity le the nearest 15 seconds or the quarter. section , township , and range (lo the nearest quarter aection) of the appro~te center of the site. Do not provide a P .O. Box number H the atreel address . Indicate whether the facility is located on Indian _lands. Socl'.lo n IV Sit: Activity Information If the storm water disd'larges to• municipal separate atorm sewer ayatem (MS-4), enter the name of the operator of the MS-4 (e.g ., municipality name, county name)~ the receiving wllter of the discharge from the t.IS-4 . (A t.IS-4 is defined as a conveyance or system of conveyances (induding roads with drainage systems, municipal streets , catch basins, curbs, gutlen;, ditches, man-made channels, or atorm d~ins) that is owned or operated by a state, city, town , borough. county, parish , district, association, .cr~th m public body which is designed or used for colloding or con1111ying atorm water.) If the facility discharges alorm water diredly lo receiving water(•). enter the name of the receiving water(a). · · If you are Ring as a co-permitlee and a storm water general permit number has been issued, enter that number in the apace provided. Indicate the monitoring atatua of the facility. Refer to the permit for information on monitoring requirements. Indicate the monitomg atatua by entering one of the . fol10win11 : . . 1 • Not subject to monitomg requirements under the conditions of the permit. 2 • Subject le monitoring requnments and required le submit data. 3 • Subject lo monitomg requnments bu1 not required to submit data. 4 ·• Subject to monitomg requirements but ~mitting certifcation for monitoring u~~ . Llsl In deaoending order of aignir.c:ance, up to · two 4-dig~ standard industrial dassification (SIC) codes that best deaaibe the principal products or services provided al the facility or de identified n Section Ill of this application. If you are applying for co1111rage un_d•r the conalnlclion general permit. enter ~CO" (which represents SIC code& 1500. 1789). . For industrial ac:tMtiea defined In "40 CFR 122.28(bX1"4)(l}{X1) that do not ha1111 SIC codea that accurately deaaibe the principal produda produced or services provided use the following 2-chilrader oodea. · ' HZ = Haurdoua waste treatmenl storage, or dispoaal facilitiea, induding those that" are operating under Interim status. or • permit under aubtitie C of RCRA ["40 . CFR 122.26 (bX1"4)(N)); LF " Landfils, land application altei, and open dumpa that receive or have received any lnduatrial wastes, induding thoae that are subject le regulation under aubtitie D of RCRA ("40 CFR 122.28 CbX14Xv)); SE • Steam electric power generating faclitiea, induding coal handling aitea ["40 c'FR 122.26 (bX1-4XW)J ; . rw " Treatment workl treating domestic sewage or any other se-ge sludge or wastewater treatment deva or ayat.em. used in the alorage,· treatmenl recyding, and reclamation of municipal or domestic sewage ("40 CFR 122.26 (bX1"4)(lx)); or, CO z Conalnlc:tion activities ("40 CFR 122.28 (bX14Xx)]. If there is another NP DES permit presently. Issued for the facility or aite listed in Section Ill, enter the permit number. If an application for the faclity hu been submitted but no permit number ha1 bHn ualgned, enter the application number. Faclities applying for coverage under the t.lu~eetor atorm wa·ter general perm~ m~st · anawer the laat three questions In Sedion rv . Refer to Addendum H of the t.lult>-Sector general permit for• lisi of 1pede1 that are elther ·proposed or listed afthreatened or endangered. "Bl.IP" meana "Beat Management Prac:tice1° that are uaed to con!n)f storm water dlschargea. Indicate whether any conalnlclion wil be conduded lo install or develop atorm water runoff controls. Section V Additional Information Requl,..d for Conalnlctlon Actlvlt111 Only Conslnlction aclivitiea must complete .Sedion Vin addition lo Sections I through IV. Onlr construction activities need lo complet.e Section V . Enter the pro;ect atart date and th_• estimated completion date for the entire development plan. Provide an estimate of the total number of •ere• ·of the site on which soi wm be disturbed (round lo the nearest acre). Indicate whether the at.orm water pollution prevention plan for the site is in compliance with approved atate and/or local aediment and erosion plans , permits . or storm water management plans . Stctlon VI Certification :=ede~I statutes provide for Mivere penalties for submitting fal$e information on this application form. Federal regulation• requite this application to be signed as follows : For • corporation : by a responsible corporate officer, which means : (i) president. secretary, tr-eaaurer, or Vice-president of the corporation in charge of a principal business function, or any .other pera0n who performs similar policy or decision making functions , or (n) the manager of one or more manufacturing , production. or operating facilities employing more than 250 pe:sona or having gross annual ules or expenditures exceeding S25 milion [in aecon(l.:quarter 1980 dotl an;). if authority to sign documents hu ·been au;g°n~d or delegated lo the manager in •=rdance with corpo~te procedures;. For • partnership or sci. proprietorship: by • gene~I partner or the proJ?rielor; or For a municiplity, st1fe, Federal, or other pubk facifty: by either a principal executive officer or ~nking elected official . _Paptrwor11 Reduction Act Notice Public n;porting burden for thla application la estimated ID avenige 0 .5 houn; per application, lnduding time for reviewing lnstrudlona, searching existing data sources , gathering and maint.eining the data needed, and completing end reviewing the collection or information. Send convnents regerding the burden estimate. any other asped or the collection of infcrmat::>:;. c~ augpealiona for lmprovirig th~ i::>m:, ir.::'-l dl::¥ '"i' suggestions whidl may increaM or reduce this burden to: Chief. lnformaht>n Poloey Bninch. 2136. U.S. Environmental Protection Agency, ~01 M Sire~. SW. Washington. DC 20~60 , o r Oirector. C>n"ooe of Information and R~u l atory Atfaors . Offoee of Management and Budgel Washington, DC 20503 . -,-+-I Lt: : July 24, 1997 HESTER ENGINEERING COMPANY CIV IL ENGINEER ING SERVICES 7607 EASTMARK DRIVE, SUITE 253-B COLLEGE STATION, TEXAS 77840 <409)693 -1100 fx :C409)693 -107 5 Steve Homeyer, Development Engineer City of College Station Engineering Division P.O . Box 9960 College Station, TX 77842 Re: Pleasant Forest Subdivision Compaction Requirements Dear Steve, DP ;::o-rz__ '°t>L~'A-N."T' fuee:s.1 In May I submitted a request for your consideration that the utility trench compaction specification be changed to a density of 90% per ASTM D-698 which was approved by your office. The compaction specification change was necessary due to the wet soils in the sanitary sewer trenches, 6-8 feet deep. At present the Contractor is experiencing difficulty with the low moisture content of the material in the trenches, 3-4 feet deep. To rectify this the specification needs to be increased to a moisture plus or minus 5 percent of optimum moisture content. waterline compaction content of I have visually and physically inspected the compacted material at the bottom of the trenches and observed the compaction technique and feel that the Developer/Contractor is obtaining an acceptable compaction, however this should be verified by continued testing. As I stated in my previous memo the fundamental reason for compacting and testing utility trenches is to avoid settlement. If the trench compaction is done properly, observed by City inspection personnel and tested by a geotechnical lab there should be no significant settlement problems using this specification. xc: Please consider this request and contact me. Pc. . Hester, P.E. Schieffer 7-'ZA f'(( !Ill..,,,,,, ---~OF r. '' ;~ ~ ........... ~~·-'·· 'l'i...' ... * ... "f. ~~J.• . •.\S\t. i! *I ._\* ,, itl*I * 1 .... : ........................... 1 MICHAEL G, HESTER ................ 0 ......... ,--c \ l:t' ~ \~~ 69104 ~~ /d" ~ ·.~1s1E.~.·· ~~ 'ss,;r··· .. ·(:,~~-,,,,~~.,... - JUL-24-1997 09:07 FROM HESTER ENGINEERING CO. TO July 24, 1997 HESTER ENGINEERING COMPANY CIVIL ENGINEERING SERVICES 7607 EASTMARK DRIVE, SUITE 253-8 \X COLLEGE STATION, TEXAS 77840 <409)693-1100 fx:C409>693-1075 1 Steve Homeyer, Development Engineer City of College Station Engineering Division P.O. Box 9960 College Station, TX 77842 Re: Pleasan~ Forest.Subdivision -p ~. Compaction Requirements • Dear Steve, CS ENGR. P .02 In May I submitted a request for your consideration that the utility trench compaction specification be changed to a density of 90% per ASTM D-698 which was approved by your office. The compaction specification change was necessary due to the wet soils in the sanitary sewer trenches, 6-8 feet deep . At present the Contractor is experiencing difficulty with the low moisture content of the material in the waterline trenches, 3-4 feet deep. To rectify this the compaction specification needs to be increased to a moisture content of plus or minus 5 percent of optimum moisture content. I have visually and physically inspected the compacted material at the bottom of the trenches and observed the compaction technique and feel that the Developer /Contractor is obtaining an acceptable compaction, however this should be verified by continued testing . As I stated in my previous memo the fundamental reason for compacting and testing utility trenches is to a v oid settlement. If the trench compaction is done properly, observed by City inspection personnel and tested by a geotechnical lab there should be no significant settlement problems using this specification . Please consider this request and contac t me. _,,,,,, ---€,OF 1'. '' ;~ ~ ............ ~.;,.·_,. 'c:> .. ·· * "-·'1\$\ •• J'•.·· . '•\ "•f \•1 , ...... -._ ................... } I MICHAEt. G . HESTER ----• ... CIO~•· ...... ~ "'° \ ~ ~~ 69104 ~~-fy ~ •• G1s1E.~.·· ~, ,.ssJt···-·fc.-.\:>; \,,,~JI" JUL-24-1997 09:07 FROM HESTER ENGINEERING CO. TO HESTER ENGINEERING COMPANY 7607 Eastmark Drive, suite 253-B College Station, TX 77840 ph :(409)693-1100 fX:C409>693·107 5 email: HEC2000@aol.com * * * * * CONFIDENTIAL FAX ***** CS ENGR . P .01 The documents accompanying this telecopy transmission contain information from the firm of Hester Engineering company which is confidential. The information is intended only for the use of the individual or entity named on this transmittal sheet. If you are not the intended recipient, you are hereby notified that any disclosure. copying, distribution or the taking of any action in reliance of the contents of this telecopy Information is strictly prohibited, and that the documents should be returned to this firm immediately. In this regard If you have received this telecopy in error, please notlfY us by telephone Immediately so that we can arrange for the return of the original documents to us at no cost to you . Date : July 24, 1997 From: Michael G. Hester, P.E. To: Stever Homeyer, Development Engineer College Station Development Services Re: Pleasant Forest Subdivision Utility Trench Compaction Requirement Steve, Find attached a request for you to consider a compaction specification change for the referenced subdivision . M1ch~er, P.E . attachments: Request copies to: Dean Schie1f er, copy to be malled ~ Page 1 of 2 Pages U fx: ( 903 ) 626-4156