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HomeMy WebLinkAbout57 Development Permit 348 Fire Station 1DEVELOPMENT PERMIT PERMIT NO . 348 Fire Station No . 1 (Holleman Drive East) FOR AREAS OUTSIDE THE SPECIAL FLOOD HAZARD AREA RE : CHAPTER 13 OF THE COLLEGE STATION CITY CODE SITE LEGAL DESCRIPTION: Lot 2, Holleman Place Subdivision SITE ADDRESS: 304 Holleman Drive East OWNER: City of College Station 1101 Texas Avenue College Station, Texas 77840 DRAINAGE BASIN: Wolf Pen Creek TYPE OF DEVELOPMENT: This permit is valid for site construction in accordance with approved plans . Contractor shall prevent silt and debris from leaving the site in accordance with the City of College Station Drainage Policy and Design Criteria. Contractor shall be responsible for any damage to existing city streets or infrastructure due to heavy machinery and/or equipment. This permit ex pires six ( 6) months from the date of issuance . Any work performed after the expiration of this permit is not covered , and is considered unauthorized . 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 t City Engineer in the development permit application for the above named pr~ ct and a fthe codes and ordinances of the City of College Station that apply . ~-7-CZC... Date/,/ C,JLft, Date Contractor t,,l /dl. i/19? Date WATER I SANITARY SEWER REIMBURSEMENT CHECKLIST in Chronological Order 1. DDP page to DDP file (prepared by City) ~ W i'll 0c. p ~ v,..J-,~ ~ ,p pfA ..,S ~Otherwise, DDP file will be empty . No DDP checklist nee s to be attached . ~~!. ~,,,'!1-r, ~ No fees , application , etc. are collected. c""., ~'i ,-',,.-., _ ~We simply need signatures on our form -Contractor and Developing Owner (or u engr.). -w•l1 je.-1 .-1 ""'-fl., 'V~L r DDP'. 2. From Developing Owner's Engineer ~ Identification of lots or tracts that front on the sewer main extension , including for ~ach lot: legal description, street address, current owner's name, and acreage . ~ Owners' telephone numbers, if available er Map of Potential Users $.Application for Reimbursement (prepared by Developing Owner) 4. Letter of tap-fee-waiver (prepared by City) 5. Estimated costs D Estimated Reimbursement Form, based on estimates (prepared by City) D City's letters to non-participants (by certified mail ; attach green cards when rec'd) 6. Actual costs D Actual Reimbursement Form , based on invoices (prepared by City) D City's letters to non-participants (by certified mail ; attach green cards when rec'd) 7. Copies of invoices (collect from Developing Owner) D Engineer's cost D Contractor's cost D If requested by Developing Owner, paperwork re Oversize Participation: a. staff calculations to determine whether O.P. is available b. if applicable, all paperwork associated with O.P. (~~l#q;J "N~ (~f) _,'1f) ?-j ):?__ 'fJ fA,I <2f ? J!j-Y -:UJ? i>rrJ ' ~------ L?.'J"d ~.:;>SJ(}e7JLP_'~ ~-;;s/ ~~ ~J?<t dt1Cl -J . 0 f'/ ua_ zri.;s u. '-;/ 2/0f'J :>j_}d "7b-zz, ~ f? I J f2.o~h Dr&AA-. .. bA sed t)YJ esh"r"V1akd eosfs. REIMBURSEMENT FOR WATER/SEWER MAINS WORKING FORMS AC::litxnt': f-mf'! / "J" ~h ;p,, Mailing Address Fire 5-fa fioV> No. I -95 /1'YJe cxk-l'1s1't?YJ Project Title Is map of potential users okay? YES NOD If no, what discrepancies are there? E?l-irn~h-.:1 AstYal Engineering Cost: ~sh~Ahd AGti:tal Construction Cost: ¢I 27~. 1 !? 7zz. Zfl I Total Acreage Served : Rate= f 11 410. 1-1 /dc--rc.,, (See following sheet for calculation of rate .) See attached table of line users and charges . Check appropriate account number for deposit of funds: G/L ACCOUNT NO : 212-0000-219-60-00 (Water) Project No. ____ _ 213-0000-219-6 0-00 (Sewer) Project No . ____ _ -------------------------~~~~~---------------------- cc: Caro l Arnold , Supervisory Staff Accountant Authorized Signature: --------------- o :deve _ ser/prorata/rateform .doc "FOR CITY USE ONLY" ) DRAFT Table 1: NAMES AND ADDRESSES OF LOT OWNERS SERVED BY THIS LINE. y ~//("'1a,, Pfau Svbdi"v1-$lovt LOT BLOCK PHASE OWNER STREET ADDRESS CITY , STATE, ZIP PHONE I h/a rl/a 11 vnm '2. /1 fZic:h&:rrdG 5 f . C.<?. r fx 77~40 2 // Ir c..o. C..<?. 3tl/ f?.,"chan:/5 Sf. c.c;. Ix 1754o TOTAL ACREAGE SERVED = Fo r your i nformation, the charge for each lot is determined by using the following formula : Rate = Engineering + Construction Cost Total Acreage Served (See page 3 , Paragraph D #2 of City Ordinance) Charge = Acreage Owned X Rate (See page 4 , Paragraph E #4 of City O rd inance) Table 2: NON-PARTICIPATING LINE USERS AND THEIR CHARGES. OWNER LOT BLOCK PHASE ACREAGE RATE CHARGE un ro *Pa rticipant **Non -partic ipant ACREAGE I .q.z_ f ,q2 ~. 34 . ., J · APPLICATION FORM FOR WATER & SEWER MAIN REIMBURSEMENT C 1 'lV csF Co ll c?<-= 5 J?ttl()o\} Applicant's Name P:o. &ic. 4'H.o Mailing Address t\~ I k:,,wi.v Dit..N.e te"T'Wee"1 L AtntE: trn-C D~ Location of Project hnc... STY\1Jo.v ~ I Project Title Length of Main: ...::\70 LF Type/Size of Main: B" 0.f<-sort. t,o>l/ Estimated Construction Cost of Main: ~ I ~ 7 Z.Z. Z...S I Estimated Engineering Cost of Main: $ t , 'Z.. 7 b Is the main located wholly within dedicated public easement/right-nf-way? * YES IXl NOD If the answer is no, all necessary easement instruments must l>e altached. Is oversize participation being requested? YES D NO 161 In order to process the application, the following items must be attached. Please indicate whether ot· not these are attached. 1) Map show in g lo cation of water/sewer main . YES ~ NOD 2) Map showi ng properties that may be served by this main with legal description and size of each (in acres) lot and current owners hip with address YES ~ NOD Prior to calculation of line charges the following must be submitted to the City Engineer's Office. AN APPLICATION CANNOT BE PROCESSED AND CHARGES ASSESSED UNTIL THIS AFFIDAVIT IS SUBMITTED. 1) Affidavit of actua l bill s paid (bid tab) for ~ engineerin g cost and construction cost upon comp letion and acceptance by City Engineer of the main. YESD NOD If Sewer Main is Not Accepted By City,Applicant Must Enter Into A Franchise Agreement To Operate In Public Right of Way. ~·~pf CITY OF COLLEGE STATION SI ~ ENGINEERING DIVISION Post Office Box 9960 1101 Texas Avenue College Station, Te xas 77842-0960 (409) 764-3570 To: From: Date: Subject: Veronica, Veronica Morg ~~ Brett McCully {11/J March 20, 1996 lnterOffice Memo Fire Station Sewer Reimbursement This memo shall serve to explain the determination of costs expected to be reimbursed to the City for the extension of the sewer main to and along the frontage of the new fire station. Based on the low bid received on march 15th, the total public sewer main construction cost will be $13, 722.25 and added to Debbie Keating's fee determination of $1,276.00 we get a total cost of $14,998.25 3.?4- As shown on the attached map, a total of ~ acres is shown to be served by this line extension, giving us an area cost of $~.88 p ~r acre. 4-~0.4-q Because the only lot which can be assessed is lot on e of the Holleman Place subdivision, which contains 1.42 acres. we will expect a reimbursement of $~.65 once this lot ties into the City sewer system. ~, ~~-'70 We will forward actual costs once the line construction is completed. Should you have any questions, please let me know. CC: Bill Kennedy, Kent Laza, Shirley Volk 1 4 1'.l':lb':lb':ll'.J'l. URBAN DESIGN GROUP PAGE 01 To: Brett Mccully Company: City of College Station ; Utilities Phone: (409)-764-3660 i Fax: (409)-764-3452 From: Debbie Keating Company: Urban Design Group Qollege Station Phone: (409)-696-9653 ' Fax: (409)-696-9752 Date: January 24, 1996 Original Malled: no ! iiilli.iincl. this sheet: 1 ' 5-MI I Comments : : The estimate is attached as requested. The costs seem kind of ~igh to me, but I averaged the units costs bid on the Eastgate Sanitary Sewer Project , and the Be~ Creek project . ; As it turns out. all of the proposed sewer is with in the llm lts of Lot 2. therefore there are no offsita sewer design costs . : Debbie .J..~U.JU.JU_J { ....J~ COST ESTIMATE ,. '• SANITARY SEWER IMPROVEME[]N~T~S-•rlmlJ]•••mgBl.ifill 1 e• aewer plug 2 s· sewerpipe 3 a· 1ewerpipe 16'-8' depth) 4 cement stabilized bedding 5 manholes (standard) 6 manholes (drop) TOTAL SEWER IMPR . 10% contingency TOTAL 1 175 470 120 3 ea If If If ea ea $200.00 $76.00 $80.00 $5 .00 $2 ,600.00 S2,800.00 Above estimate based upon unapproved construction plans . Shared costs should be based upon actual construction costs . I -S200.00 x. $13, 125.00 ~ $37,600 .00 v $600.00 ...... $7,800.00 - $2.800.00 (./" $61,925.00 $6, 192 .50 $68,, 17 .50 Assuming the sewer design cost is 20% of the total design cost (excludin ~ boundary & topo survey). the sewer portion is $ 1,276. r ~ i COLLEGE STATION FIRE STATION DRAINAGE REPORT Prepared By: Urban Design Group P .O . Box 10153 College Station, Texas 77840 Prepared For: Phillips Swager Associates 12404 Park Central Drive Suite 240 Dallas , Texas 75251-1819 NOVEMBER 1995 TABLE OF CONTENTS I. II. III . IV. v. Certification General Location and Description Drainage Basins and Subasins Drainage Design Criteria Drainage Facility Design Figure 1 Figure 2 Figure 3 Appendix A Appendix B Appendix C AppendixD Appendix E AppendixF Appendix G Table 1. 95-324.doc Location Map Drainage Area Map FEMA Floodplain Map Runoff Calculations (Hydrographs) A(EX) Runoff Calculations (Hydrographs) B(EX) Runoff Calculations (Hydrographs) B(DEV) Runoff Calculations (Hydrographs) A(EX)+B(EX) Runoff Calculations (Hydro graphs) A(EX)+B(DEV) NPDES Permit Application Development Permit Application Computed RunofffFlows (cfs) Page 2 Page 3 I. CERTIFICATION I hereby certify that this report for the drainage design of improvements for the College Station Fire Station, was prepared by me in accordance with the provisions of the City of College Station Drainage Policy and Design Standards, with the exception of the detention requirements , for the owners thereof. Registered Professional Engineer State of Texas No . 68243 95-324.doc Page4 II. GENERAL LOCATION AND DESCRIPTION A. Location This project is located on the south side of Holleman Street between Texas Avenue and Dartmouth Street. The location map , Figure 1, shows the limits of the project. The project includes the development of the proposed fire station for the City of College Station. No public streets improvements are proposed with the site plan . However, public sewer is proposed . The property is currently platted as Lot 2, Holleman Place Subdivis ion . The primary drainage system is Wolf Pen Creek , tributary A. Surrounding developments include the GTE building (to the west), proposed Arbor Apartments (to the North), and a 6 .38 acre tract (to the east) which is currently undeveloped . The subject tract is bordered on the south by Richards Street. B. Description of Property The acreage of the site proposed for development is approximately 1.93 acres. The total area of Jot 2 is 6 .307 acres . The land cover is currently heavil y wooded with oak , yaupon , and grass cover. No primary drainage way is near or adjacent to the project. The main channel of Wolf Pen Creek is the nearest primary drainage way . Runoff from the proposed development will be transported to the primary system via existing storm sewer (secondary drainage system) along the south side of Holleman Drive. The project consists of the construction of a 8657 sf public building, parking lot, drives , proposed detention area, and private water and sanitary sewer service lines . A portion of public sanitary sewer (south side of Holleman) is proposed for this site plan . ID. DRAINAGE BASINS AND SUB-BASINS A. Primary Basin Descri11tion As stated previ ously in this report, the primary drainage basi n is the Wolf Pen Creek basin which is located within the Wolf Pen Creek Watershed. In accordance with the drainage ordinance, the minimum floor elevation requirements for this basin are standard (l ' above the calculated 100 year floodplain elevation). According to the FEMA FIRM Panel No . 48041C0144C dated July 1992 , no portion of the proposed building area or portion of lot 2 lies within the limits of the 100 yea r floodplain . (see Fig. 3) 95-324.doc Page 5 B. Secondary Drainage Basin Description The proposed development will utilize the existing storm sewer along Holleman Street as secondary pathways to the primary drainage system . No additional flows are proposed to enter Holleman street, as detention will be provided onsite either within the proposed parking lot or downstream adjacent to the site to restrict the runoff flows to their pre-developed rate. IV. Drainage Design Criteria A. Regulations To our knowledge , no deviations from the optional criteria listed in the Drainage Policy and Design Standards were used for any calculations within this study . B. Development Criteria Reference and Constraints For the site plan proposed , the detention requirements have been designed for the construction of the proposed fire station and associated improvements . Further development on lot 2 should meet additional detention\drainage requirements . However, no drainage improvements proposed with this site plan prohibit the development of the remaining portion of lot 2. C. Hydrologic Criteria A 10 year design storm was used to size the inlets and storm sewer pipes . The Rational Method was used to calculate the runoff volumes. Runoff coefficients were determined using an average slope of 4%. Detention discharges and storage calculations are provided . The time of concentration values were calculated using velocities determined from Table III of the Drainage Policy and Design Standards. The following tables show the computed flows for each of the drainage areas before and after development. As shown in Figure 2, area A is the drainage area upstream of the proposed development. Area B is the areas proposed for development. D. Hydraulic Criteria The proposed detention pond will be designed to accommodate the increased runoff from area B . Results of the hydraulic calculations for the routing of the hydrographs through the detention pond , storage calculations , discharges , and results of the routing of the hydrographs will be provided where parking lot configuration is finali zed. 95-3 24 .doc TABLE 1. Computed Flows AREA A (existing) B (existing) A (ex)+ B (dev) B (development A (ex)+ B (dev) / V. DRAINAGE FACILITY DESIGN SYR 18 .5 8 .8 25.4 12 .3 28.4 lOYR 25YR 23 .0 28 .0 14 .3 38 .9 17 .7 '<~ ,,~ A.~t' J-• Page 6 SOYR lOOYR 31.9 36 .2 16 .5 19 .0 45.3 51.9 19.0 22 .3 47 .6 55 .2 Upstream offsite flows are accounted for , however no ultimate de velopm ent was assumed for any upstream areas . A. General Concept In designing the drainage facilities for this site , the development of the proposed fire station and associated improvements were considered. However, as of November 14 , 1995 the configuration of the parking lot had not been finalized , therefore detention within the parking lot has not been analyzed. When the layout has been finalized , calculations will be submitted that show adequate storage volume exists within the proposed parking lot, or that a detention area is needed outside the current proposed buildable area . 95-324.doc Figure 1 Location Map Figure 2 Drainage Area Map Figure 3 FEMA Floodplain Map c:::::: ---J ·-- POST OAK MALL POS?" OAK UBSTATJQ ~ Nov. 15. 1995 12•15•59 \ ..,. ·> ,. ~ • / / ~ ~ tr. \_ __ \ \ \ nse Vegetation /---............ -------- Figure 2 ZONE X ZONE X . City o Figure·3 ~"" 'v'?' / / '/ // // ZONE X Refer to th e Flood Ins urance Rate M ap Effe ct ive date sho wn on thi s map to d etermine w hen aduari al rates apply to st r u d ~res in the zo nes where elevation s or de pths have b een establi she d . To determine if fl ood insu ra nce is available in th is commun ity, contad your insura nce agent o r call the Na tio nal Fl o od ln;ura nce Pr o gra m at (8001638-6620 . Figure 3 APPROX IMAT[ <(-\L E 5 00 0 500 FEET EE=3==:C:::EE=3::3:::~t===<~:3::::::::::::::::::::::::i -NATIONAL FLOOD INSURANCE PROGRAM I I i I I I I I I I I flRM FLOOD INSURANCE RATE MAP BRAZOS COUNTY, TEXAS AND INCORPORATED AREAS PANEL 144 OF 250 (SEE MAP INDEX FOR PANELS NOT PRINTED) CONTAINS : COMMUNITY NUMBER PANEL SUFFIX BRYAN . CI TY OF 480082 0 14 4 COLLE GE ST ATION . CIT\' C' 4800 83 0 141 Noti'e to User : Th e MA P NUMBER show n belo w should be used when placi11g map ord er s; the COMMUNITY NUMBER shown abov e s ~ou l d be used on insurance appli cat ions fo r the sub ject comm unity . MAP NUMBER 480 41C 01 44 C EFFECTIVE DATE: JULY 2, 1992 Federal Emergency Management Agency Appendix A Runoff Calculations (Hydro graphs) A(EX) File Name -cs FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 10/30/95 Job 95-324 Misc. Note -cs FIRE STATION HYDROS 1 Type scs Desc. EXISTING 5 YR AREA A Area 3.3 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 5:33 5:36 5:39 5:42 5:45 5:48 5:51 5:54 5:57 6:00 6:03 6:06 6:09 6: 12 6: 15 6: 18 6:21 6:24 6:27 6:30 6:33 6:36 6:39 6:42 6:45 6:48 6:51 6:54 6:57 7:00 7:03 7:06 7:09 7: 12 7: 15 7: 18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 7:42 7:45 Flow cfs 0.0 0.0 0.0 0.0 0.0 o.o 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0. 1 0.1 0.1 0.1 0. 1 0.1 0. 1 0. 1 0.1 0. 1 0. 1 0. 1 0. 1 0. 1 0.1 0.1 0. 1 0. 1 0. 1 0.1 0.1 0.1 0. 1 0. 1 0.1 0.1 0.1 0.1 0. 1 Time hr:min 7:48 7:51 7:54 7:57 8:00 8:03 8:06 8:09 8:12 8:15 8:18 8:21 8:24 8:27 8:30 8:33 8:36 8:39 8:42 8:45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9: 12 9: 15 9: 18 9:21 9:24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9:51 9:54 9:57 10:00 Flow cfs 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 Time hr:min 10:03 10:06 10:09 10: 12 10: 15 10: 18 10:21 10:24 10:27 10:30 10:33 10:36 10:39 10:42 10:45 10:48 10:51 10:54 10:57 11:00 11 :03 11 :06 11 :09 11: 12 11: 15 11 :18 11 :21 11 :24 11 :27 11 :30 11 :33 11:36 11:39 11:42 11:45 11:48 11: 51 11 :54 11 :57 12:00 12:03 12:06 12:09 12: 12 12: 15 Freq. 5.0 yrs CN 84 Len 24 hrs Precip. 6.20 Flow cfs Time hr:min 0.4 12:18 0.4 12:21 0.4 12:24 0.4 12:27 0.4 12:30 0.4 12:33 0.4 12:36 0.5 12:39 0.5 12:42 0.5 12:45 0.5 12:48 0.5 12:51 0.6 12:54 0.6 12:57 0.7 13:00 0. 7 13:03 0.7 13:06 0.8 13:09 0.8 13:12 0.8 13:15 0.9 13:18 0.9 13:21 1.0 13:24 1.0 13:27 1. 0 13:30 1.1 13:33 1.1 13:36 1.2 13:39 1.3 13:42 1.4 13:45 1.5 13:48 2.2 13:51 3.7 13:54 4.9 13:57 5.6 14:00 6.2 14:03 8.4 14:06 12.3 14:09 15.7 14:12 17.6 14:15 ~ 14:18 16.3 14:21 11.3 14:24 7.2 14:27 5.2 14:30 Continued on next page Flow cfs 4.2 3.5 2.9 2.5 2.3 2.2 2. 1 1.9 1.8 1.8 1. 7 1. 7 1.6 1.5 1.4 1.4 1.3 1.3 1.2 1.2 1. 1 1. 1 1. 1 1. 0 1. 0 1.0 1.0 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.8 Continued from previous page 14:33 0.8 15:27 0.7 16:21 0.6 17: 15 0.1 14:36 0.8 15:30 0.7 16:24 0.6 17: 18 0.5 14:39 0.8 15:33 0.7 16:27 0.6 17:21 0.4 14:42 0.8 15:36 0.7 16:30 0.6 17:24 0.2 14:45 0.8 15:39 0.7 16:33 0.6 17:27 0. 1 14:48 0.8 15:42 0.7 16:36 0.6 17:30 0.5 14:51 0.8 15:45 0.7 16:39 0.6 17:33 0.3 14:54 0.8 15:48 0.7 16:42 0.6 17:36 0.2 14:57 0.8 15:51 0.7 16:45 0.6 17:39 0.1 15:00 0.8 15:54 0.7 16:48 0.6 17:42 0.5 15:03 0.8 15 :57 0.7 16:51 0.6 17:45 0.3 15:06 0.8 16:00 0.7 16:54 0.6 17:48 0.2 15:09 0.8 16:03 0.7 16:57 0.6 17:51 0. 1 15: 12 0.8 16:06 0.7 17:00 0.6 17:54 0.4 15:15 0.8 16:09 0.7 17:03 0.5 17:57 0.3 15: 18 0.8 16: 12 0.6 17:06 0.5 18:00 0.2 15:21 0.7 16: 15 0.6 17:09 0.5 15:24 0 .7 16: 18 0.6 17: 12 0.5 Volume of runoff = 1. 14 ac. ft. Depth of runoff 4.10 in. File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 10/30/95 Job 95-324 Misc. Note -cs FIRE STATION HYDROS 2 Type SCS Desc. EXISTING 10 YR AREA A Area 3.3 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 4:51 4:54 4:57 5:00 5:03 5:06 5:09 5: 12 5: 15 5: 18 5:21 5:24 5:27 5:30 5:33 5:36 5:39 5:42 5:45 5:48 5:51 5:54 5:57 6:00 6:03 6:06 6:09 6:12 6:15 6:18 6:21 6:24 6:27 6:30 6:33 6:36 6:39 6:42 6:45 6:48 6:51 6:54 6:57 7:00 7:03 Flow cfs 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0. 1 0. 1 0. 1 0.1 0.1 0.1 0.1 0. 1 0. 1 0. 1 0. 1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0. 1 0. 1 0.1 0. 1 0.1 0.1 0. 1 0. 1 0 .1 0. 1 Time hr:min 7:06 7:09 7: 12 7:15 7:18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 7:42 7:45 7:48 7:51 7:54 7:57 8:00 8:03 8:06 8:09 8:12 8:15 8:18 8:21 8:24 8:27 8:30 8:33 8:36 8:39 8:42 8:45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9: 12 9: 15 9: 18 Flow cfs 0. 1 0.1 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 Time hr:min 9:21 9:24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9:51 9:54 9:57 10:00 10:03 10:06 10:09 10: 12 10: 15 10: 18 10:21 10:24 10:27 10:30 10:33 10:36 10:39 10:42 10:45 10:48 10:51 10:54 10:57 11 :00 11 :03 11 :06 11:09 11: 12 11: 15 11: 18 11 : 21 11 :24 11 :27 11 :30 11 :33 Freq. 10.0 yrs CN 84 Len 24 hrs Precip. 7.40 Flow cfs 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.7 0.7 0.7 0.7 0.8 0.9 0.9 0 .9 1 .0 1.0 1. 1 1. 1 1. 1 1. 2 1.3 1.3 1.4 1.4 1. 5 1.6 1. 7 1 .8 1 .9 Time hr:min 11:36 11:39 11:42 11 :45 11:48 11: 51 11:54 11:57 12:00 12:03 12:06 12:09 12:12 12:15 12: 18 12:21 12:24 12:27 12:30 12:33 12:36 12:39 12:42 12:45 12:48 12:51 12:54 12:57 13:00 13:03 13:06 13:09 13: 12 13:15 13:18 13:21 13:24 13:27 13:30 13:33 13:36 13:39 13:42 13:45 13:48 Flow cfs 2.8 4.6 6.2 7.2 7.8 10.3 15.2 19.4 21 .8 ~ 14.5 9.2 6.5 5.2 4.4 3.6 3. 1 2.8 2.7 2.5 2.4 2.2 2.2 2. 1 2. 1 1.9 1.8 1. 7 1. 7 1.6 1. 5 1. 5 1.4 1.4 1.4 1.3 1.3 1.2 1. 2 1. 2 1. 2 1.1 1. 1 1. 1 Continued on next page .ontinued from previous page 13:51 1. 1 14:45 1.0 15:39 0.9 16:33 0.7 13:54 1 . 1 14:48 1.0 15:42 0.9 16:36 0.7 13:57 1 . 1 14:51 1.0 15:45 0.9 16:39 0.3 14:00 1 . 1 14:54 1.0 15:48 0.8 16:42 0. 1 14:03 1 . 1 14:57 1.0 15:51 0.8 16:45 0.7 14:06 1 . 1 15:00 1.0 15:54 0.8 16:48 0.5 14:09 1. 1 15:03 1.0 15:57 0.8 16:51 0.3 14: 12 1. 1 15:06 0.9 16:00 0.8 16:54 0. 1 14: 15 1.1 15:09 0.9 16:03 0.8 16:57 0.6 14: 18 1.1 15: 12 0.9 16:06 0.8 17:00 0.5 14:21 1.1 15:15 0.9 16:09 0.8 17:03 0.3 14:24 1.0 15: 18 0.9 16: 12 0.8 17:06 0.1 14:27 1.0 15:21 0.9 16: 15 0.8 17:09 0.6 14:30 1.0 15:24 0.9 16: 18 0.8 17:12 0.4 14:33 1.0 15:27 0.9 16:21 0.8 17: 15 0.3 14:36 1.0 15:30 0.9 16:24 0.8 17: 18 0.1 14:39 1.0 15:33 0.9 16:27 0.8 14:42 1.0 15:36 0.9 16:30 0.7 Volume of runoff = 1.40 ac. ft. Depth of run off 5.05 in. File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 10/30/95 Job 95-324 Misc. Note -CS FIRE STATION HYDROS 3 Type scs Desc. EXISTING 25 YR AREA A Area 3.3 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 4: 16 4:19 4:22 4:25 4:28 4:31 4:34 4:37 4:40 4:43 4:46 4:49 4:52 4:55 4:58 5:01 5:04 5:07 5: 10 5:13 5: 16 5: 19 5:22 5:25 5:28 5:31 5:34 5:37 5:40 5:43 5:46 5:49 5:52 5:55 5:58 6:01 6:04 6:07 6:10 6: 13 6: 16 6: 19 6:22 6:25 6:28 Flow cfs 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0. 1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0. 1 0. 1 0.1 0. 1 0. 1 0. 1 0.2 0.2 0.2 0.2 0.2 0.2 Time hr:min 6:31 6:34 6:37 6:40 6:43 6:46 6:49 6:52 6:55 6:58 7:01 7:04 7:07 7:10 7: 13 7:16 7:19 7:22 7:25 7:28 7:31 7:34 7:37 7:40 7:43 7:46 7:49 7:52 7:55 7:58 8:01 8:04 8:07 8: 10 8: 13 8: 16 8: 19 8:22 8:25 8:28 8:31 8:34 8:37 8:40 8:43 Flow cfs 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Time hr:min 8:46 8:49 8:52 8:55 8:58 9:01 9:04 9:07 9:10 9:13 9: 16 9: 19 9:22 9:25 9:28 9:31 9:34 9:37 9:40 9:43 9:46 9:49 9:52 9:55 9:58 10:01 10:04 10:07 10: 10 10: 13 10: 16 10: 19 10:22 10:25 10:28 10:31 10:34 10:37 10:40 10:43 10:46 10:49 10:52 10:55 10:58 Freq. 25.0 yrs CN 84 Len 24 hrs Precip. 8.80 Flow cfs 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.7 0.7 0.7 0.7 0.7 0.7 0.8 0.8 0.8 0.9 0.9 0.9 1.0 1.1 1.1 1.2 1.2 1.3 1.4 1.4 Time hr:min 11: 01 11:04 11:07 11: 10 11: 13 11: 16 11: 19 11:22 11:25 11:28 11 :31 11 :34 11 :37 11:40 11 :43 11:46 11:49 11:52 11: 55 11:58 12:01 12:04 12:07 12: 10 12:13 12: 16 12: 19 12:22 12:25 12:28 12:31 12:34 12:37 12:40 12:43 12:46 12:49 12:52 12:55 12:58 13:01 13:04 13:07 13: 10 13: 13 Continued on next page Flow cfs 1.5 1.5 1.6 1. 7 1. 7 1.8 1.8 1.9 2. 1 2.2 2.3 2.5 3.8 6.2 8.1 9.1 10.0 13.6 19.7 24.5 27.2 Q9) 24.3 16.6 10.6 7.7 6.2 5.2 4.3 3.7 3.4 3.2 3.1 2.9 2.7 2.6 2.6 2.5 2.3 2.1 2.1 2.0 2.0 1.8 1.8 Continued from prev i ous page 13:16 1. 7 14: 10 1.3 15:04 1.2 15:58 1.0 13:19 1. 7 14: 13 1.3 15:07 1.2 16:01 1. 0 13:22 1.6 14: 16 1.3 15: 10 1 . 1 16:04 1.0 13:25 1.6 14: 19 1.3 15: 13 1. 1 16:07 0.9 13:28 1.5 14:22 1.3 15: 16 1.1 16: 10 0.6 13:31 1.5 14:25 1.3 15: 19 1. 1 16: 13 0.4 13:34 1.5 14:28 1.3 15:22 1.1 16: 16 0.1 13:37 1.4 14:31 1.3 15:25 1.1 16: 19 0.9 13:40 1.4 14:34 1.3 15:28 1. 1 16:22 0 .6 13:43 1.4 14:37 1.2 15:31 1. 1 16:25 0 .4 13:46 1.4 14:40 1.2 15:34 1. 1 16:28 0.1 13:49 1.4 14:43 1.2 15:37 1. 1 16:31 0.9 13:52 1.4 14:46 1. 2 15:40 1.1 16:34 0.6 13:55 1.4 14:49 1.2 15:43 1.0 16:37 0.4 13:58 1.4 14:52 1.2 15:46 1.0 16:40 0. 1 14:01 1.4 14:55 1.2 15:49 1.0 16:43 0.8 14:04 1.3 14:58 1.2 15:52 1.0 14:07 1.3 15:01 1.2 15:55 1.0 VollJTle of runoff = 1. 71 ac. ft. Depth of runoff = 6.16 in. File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 10/30/95 Job 95-324 Misc. Note · CS FIRE STATION HYDROS 4 Type SCS Desc. EXISTING 50 YR AREA A Area 3.3 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 3:57 4:00 4:03 4:06 4:09 4: 12 4: 15 4: 18 4:21 4:24 4:27 4:30 4:33 4:36 4:39 4:42 4:45 4:48 4:51 4:54 4:57 5:00 5:03 5:06 5:09 5: 12 5:15 5: 18 5:21 5:24 5:27 5:30 5:33 5:36 5:39 5:42 5:45 5:48 5:51 5:54 5 :57 6:00 6:03 6:06 6:09 Flow cfs 0.0 0.0 0.0 0.0 0.0 0.0 0. 1 0. 1 0. 1 0. 1 0. 1 0.1 0. 1 0. 1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0. 1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0. 1 0. 1 0.1 0.1 0. 1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Time hr:min 6:12 6: 15 6:18 6:21 6:24 6:27 6:30 6:33 6:36 6:39 6:42 6:45 6:48 6:51 6:54 6:57 7:00 7:03 7:06 7:09 7: 12 7:15 7:18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 7:42 7:45 7:48 7:51 7:54 7:57 8:00 8:03 8:06 8:09 8: 12 8: 15 8: 18 8:21 8:24 Flow cfs 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 0.4 0.4 0.4 Time hr:min 8:27 8:30 8:33 8:36 8:39 8:42 8:45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9: 12 9: 15 9: 18 9:21 9:24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9:51 9:54 9:57 10:00 10:03 10:06 10:09 10: 12 10:15 10: 18 10:21 10:24 10:27 10:30 10:33 10:36 10:39 Freq. 50.0 yrs CN 84 Len 24 hrs Precip. 9.80 Flow cfs 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.7 0.7 0.7 0.7 0.7 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.9 0.9 0.9 0.9 1.0 1.0 1.1 1.1 1.1 1.2 Time hr:min 10:42 10:45 10:48 10:51 10:54 10:57 11:00 11:03 11:06 11:09 11:12 11: 15 11: 18 11: 21 11:24 11:27 11:30 11 :33 11 :36 11 :39 11 :42 11 :45 11 :48 11: 51 11 :54 11 :57 12:00 12:03 12:06 12:09 12: 12 12:15 12: 18 12:21 12:24 12:27 12:30 12:33 12:36 12:39 12:42 12:45 12:48 12:51 12:54 Continued on next page Flow cfs 1.3 1.4 1.4 1. 5 1.6 1. 7 1. 7 1. 7 1.8 1.9 2.0 2.1 2.1 2.2 2.4 2.5 2.6 2.8 3.9 6.6 9.0 10.3 11.2 14.3 21.0 27.0 30.3 c:]J) 28.9 20.6 13.1 9.1 7.2 6.1 5.0 4.2 3.8 3.6 3.5 3.3 3. 1 3.0 2.9 2.8 2.6 ontinued from previous page 12:57 2.4 13:51 1 .6 14:45 1 .4 15:39 1. 2 13:00 2.3 13:54 1 .5 14:48 1 .4 15:42 1.2 13:03 2.3 13:57 1 .5 14:51 1.4 15:45 0.2 13:06 2.2 14:00 1. 5 14:54 1.3 15:48 1. 1 13:09 2. 1 14:03 1. 5 14:57 1.3 15:51 0.8 13: 12 2.0 14:06 1.5 15:00 1.3 15:54 0.5 13: 15 1.9 14:09 1.5 15:03 1.3 15:57 0.2 13: 18 1.9 14: 12 1.5 15:06 1.3 16:00 1. 1 13:21 1.9 14: 15 1.5 15:09 1 .3 16:03 0.8 13:24 1.8 14: 18 1.5 15: 12 1 .3 16:06 0.5 13:27 1. 7 14:21 1.5 15:15 1 .3 16:09 0.2 13:30 1. 7 14:24 1.4 15: 18 1 .3 16: 12 1. 0 13:33 1. 7 14:27 1 .4 15:21 1 .3 16: 15 0.7 13:36 1.6 14:30 1 .4 15:24 1. 2 16: 18 0.4 13:39 1.6 14:33 1 .4 15:27 1.2 16:21 0. 1 13:42 1 .6 14:36 1.4 15:30 1.2 16:24 1.0 13:45 1.6 14:39 1 .4 15:33 1.2 13:48 1.6 14:42 1 .4 15:36 1. 2 Voll.MTle of runoff = 1 .93 ac. ft. Depth of runoff = 6.95 in. File Name -cs FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 10/30/95 Job 95-324 Misc. Note -cs FIRE STATION HYDROS 5 Type SCS Desc. EXISTING 100 YR AREA A Area 3.3 ac. Time of Concent. 10 min. Storm Oist Type II Time hr:min 3:45 3:48 3:51 3:54 3:57 4:00 4:03 4:06 4:09 4: 12 4: 15 4: 18 4:21 4:24 4:27 4:30 4:33 4:36 4:39 4:42 4:45 4:48 4:51 4:54 4:57 5:00 5:03 5:06 5:09 5: 12 5: 15 5: 18 5:21 5:24 5:27 5:30 5:33 5:36 5:39 5:42 5:45 5:48 5:51 5:54 5:57 Flow cfs 0.0 0.0 0.0 0.0 0. 1 0. 1 0. 1 0. 1 0.1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0. 1 0. 1 0. 1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Time hr:min 6:00 6:03 6:06 6:09 6: 12 6: 15 6: 18 6:21 6:24 6:27 6:30 6:33 6:36 6:39 6:42 6:45 6:48 6:51 6:54 6:57 7:00 7:03 7:06 7:09 7: 12 7: 15 7: 18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 7:42 7:45 7:48 7:51 7:54 7:57 8:00 8:03 8:06 8:09 8: 12 Flow cfs 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 Time hr:min 8: 15 8:18 8:21 8:24 8:27 8:30 8:33 8:36 8:39 8:42 8:45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9:12 9: 15 9:18 9:21 9:24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9:51 9:54 9:57 10:00 10:03 10:06 10:09 10: 12 10: 15 10: 18 10:21 10:24 10:27 Freq. 100.0 yrs CN 84 Len 24 hrs Precip. 11.00 Flow cfs 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.7 0.7 0.7 0.7 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 1.0 1.0 1.0 1. 1 1.1 1.2 1.2 Time hr:min 10:30 10:33 10:36 10:39 10:42 10:45 10:48 10:51 10:54 10:57 11: 00 11 :03 11 :06 11 :09 11 : 12 11: 15 11: 18 11: 21 11: 24 11 :27 11 :30 11 :33 11 :36 11 :39 11 :42 11 :45 11 :48 11: 51 11:54 11:57 12:00 12:03 12:06 12:09 12: 12 12: 15 12: 18 12:21 12:24 12:27 12:30 12:33 12:36 12:39 12:42 Continued on next page Flow cfs 1.3 1.3 1.3 1.5 1.6 1.6 1. 7 1. 7 1.8 1.9 2.0 2.0 2. 1 2.2 2.3 2.4 2.5 2.6 2.8 2.9 3.1 3.2 4.3 7.3 10.2 11.8 12.8 15.9 23.3 30.3 34.3 ~ 33.7 24.4 15.5 10.7 8.4 7.0 5.8 4.9 4.4 4.1 4.0 3.7 3.5 Continued from previous page 12:45 3.4 13:39 1.8 14:33 1.6 15:27 1.3 12:48 3.3 13:42 1.8 14:36 1.6 15:30 1. 0 12:51 3.2 13:45 1.8 14:39 1.6 15:33 0.6 12:54 3.0 13:48 1.8 14:42 1.6 15:36 0.2 12:57 2.8 13:51 1.8 14:45 1.6 15:39 1.3 13:00 2.7 13:54 1.8 14:48 1.5 15:42 0.9 13:03 2.6 13:57 1. 7 14:51 1.5 15:45 0.6 13:06 2.5 14:00 1. 7 14:54 1.5 15:48 0.2 13:09 2.4 14:03 1. 7 14:57 1.5 15:51 1.3 13:12 2.3 14:06 1.7 15:00 1.5 15:54 0.9 13: 15 2.2 14:09 1. 7 15:03 1.5 15:57 0.5 13:18 2.2 14: 12 1. 7 15:06 1.5 16:00 0.2 13:21 2.1 14: 15 1. 7 15:09 1. 5 16:03 1. 2 13:24 2.0 14: 18 1. 7 15: 12 1.5 16:06 0.9 13:27 1.9 14:21 1.6 15:15 1.4 16:09 0.5 13:30 1.9 14:24 1.6 15: 18 1.4 16: 12 0. 1 13:33 1.9 14:27 1.6 15:21 1.4 13:36 1.8 14:30 1.6 15:24 0.3 Volume of runoff = 2.19ac. ft. Depth of runoff = 7.91 in. Appendix B Runoff Calculations (Hydrographs) B(EX) File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 10/30/95 Job 95-324 Misc. Note -CS FIRE STATION HYDROS 6 Type SCS Desc. EXISTING AREA B 5 YR Area 1.9 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 8:00 8:03 8:06 8:09 8:12 8:15 8:18 8:21 8:24 8:27 8:30 8:33 8:36 8:39 8:42 8:45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9: 12 9: 15 9:18 9:21 9:24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9:51 9:54 9:57 10:00 10:03 10:06 10:09 10: 12 Flow cfs 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0. 1 0.1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 Time hr:min 10: 15 10: 18 10:21 10:24 10:27 10:30 10:33 10:36 10:39 10:42 10:45 10:48 10:51 10:54 10:57 11: 00 11: 03 11:06 11:09 11: 12 11: 15 11:18 11: 21 11: 24 11 :27 11 :30 11 :33 11 :36 11:39 11:42 11 :45 11:48 11: 51 11:54 11:57 12:00 12:03 12:06 12:09 12: 12 12: 15 12: 18 12:21 12:24 12:27 Flow cfs 0. 1 0. 1 o. 1 0. 1 0. 1 0. 1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.8 1 .4 1 .9 2.3 2.5 3.5 5.4 7.0 8. 1 CD) 7.9 5.5 3.5 2.6 2. 1 1 .8 1 . 5 1.2 Time hr:min 12:30 12:33 12:36 12:39 12:42 12:45 12:48 12:51 12:54 12:57 13:00 13:03 13:06 13:09 13: 12 13: 15 13: 18 13:21 13:24 13:27 13:30 13:33 13:36 13:39 13:42 13:45 13:48 13:51 13:54 13:57 14:00 14:03 14:06 14:09 14:12 14:15 14: 18 14:21 14:24 14:27 14:30 14:33 14:36 14:39 14:42 Freq. 5 .0 yrs CN 75 Len 24 hrs Precip. 6.20 Flow cfs 1. 1 1.1 1 .0 1 .0 0.9 0.9 0.9 0.9 0.8 0.7 0.7 0.7 0.7 0.6 0.6 0.6 0.6 0.6 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Time hr:min 14:45 14:48 14:51 14:54 14:57 15:00 15:03 15:06 15:09 15: 12 15:15 15: 18 15:21 15:24 15:27 15:30 15:33 15:36 15:39 15:42 15:45 15:48 15:51 15:54 15:57 16:00 16:03 16:06 16:09 16: 12 16: 15 16: 18 16:21 16:24 16:27 16:30 16:33 16:36 16:39 16:42 16:45 16:48 16:51 16:54 16:57 Continued on next page Flow cfs 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 :ontinued from previous page 17:00 0.3 17:54 0.2 18:48 0.2 19:42 0. 1 17:03 0.3 17:57 0.2 18:51 0.2 19:45 0.1 17:06 0.3 18:00 0.2 18:54 0.2 19:48 0.0 17:09 0 .3 18:03 0.2 18:57 0 .2 19:51 0.1 17: 12 0.3 18:06 0.2 19:00 0.2 19:54 0.1 17: 15 0.3 18:09 0.2 19:03 0.2 19:57 0 .1 17: 18 0.3 18: 12 0.2 19:06 0.2 20:00 0.0 17:21 0.3 18: 15 0.2 19:09 0.2 20:03 0.1 17:24 0.3 18: 18 0.2 19:12 0.2 20:06 0.1 17:27 0.3 18:21 0.2 19: 15 0.2 20:09 0 .1 17:30 0.3 18:24 0.2 19: 18 0.2 20: 12 0.0 17:33 0.3 18:27 0.2 19:21 0.2 20: 15 0. 1 17:36 0.2 18:30 0.2 19:24 0.2 20:18 0.1 17:39 0.2 18:33 0.2 19:27 0.2 20:21 0. 1 17:42 0.2 18:36 0.2 19:30 0.2 20:24 0.0 17:45 0.2 18:39 0.2 19:33 0.2 20:27 0. 1 17:48 0.2 18:42 0.2 19:36 0. 1 17:51 0.2 18:45 0.2 19:39 0.1 Vol1.JT1e of runoff = 0.54 ac. ft. Depth of r unoff 3.37 in. File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 10/30/95 Job 95 -324 Misc. Note -CS FIRE STATION HYDROS 7 Type SCS Desc. EXISTING AREA B 10 YR Area 1.9 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 7:06 7:09 7: 12 7: 15 7:18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 7:42 7:45 7:48 7:51 7:54 7:57 8:00 8:03 8:06 8:09 8:12 8: 15 8: 18 8:21 8:24 8:27 8:30 8:33 8:36 8:39 8:42 8:45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9:12 9: 15 9:18 Flow cfs 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0. 1 0.1 0 . 1 0. 1 0. 1 0.1 0. 1 0. 1 0. 1 0.1 0.1 0.1 0. 1 0.1 0. 1 0. 1 0.1 0. 1 0.1 Time hr:min 9:21 9:24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9:51 9:54 9:57 10:00 10:03 10:06 10:09 10:12 10: 15 10: 18 10:21 10:24 10:27 10:30 10:33 10:36 10:39 10:42 10:45 10:48 10:51 10:54 10:57 11 :00 11 :03 11 :06 11 :09 11: 12 11 ;15 11: 18 11 :21 11:24 11 :27 11 :30 11 :33 Flow cfs 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.2 0.2 0 .2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.6 0.6 0.7 0.7 0 .7 Time hr:min 11:36 11:39 11 :42 11 :45 11 :48 11 :51 11: 54 11:57 12:00 12:03 12:06 12:09 12:12 12:15 12: 18 12:21 12:24 12:27 12:30 12:33 12:36 12:39 12:42 12:45 12:48 12:51 12:54 12:57 13:00 13:03 13:06 13:09 13: 12 13: 15 13: 18 13:21 13:24 13:27 13:30 13:33 13:36 13:39 13:42 13:45 13:48 Freq. 10.0 yrs CN 75 Len 24 hrs Precip. 7.40 Flow cfs Time hr:min 1.1 13:51 1.8 13 :54 2.6 13:57 3.0 14:00 3.4 14:03 4.4 14:06 6. 7 14:09 9.0 14:12 10.4 14:15 <IT}) 14:18 10.6 14:21 7.6 14:24 4.9 14:27 3.4 14:30 2.7 14:33 2.3 14:36 1 .9 14:39 1.6 14:42 1 .5 14:45 1.4 14:48 1 .3 14:51 1.2 14:54 1.2 14:57 1. 1 15: 00 1.1 15:03 1.1 15:06 1.0 15 :09 0 .9 15:12 0.9 15:15 0.9 15:18 0.9 15:21 0.8 15:24 0.8 15:27 0.8 15:30 0.7 15:33 0.7 15:36 0.7 15 :39 0.7 15:42 0.6 15 :45 0.6 15:48 0.6 15:51 0.6 15:54 0.6 15:57 0.6 16:00 0.6 16:03 Continued on next page Flow cfs 0.6 0.6 0.6 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 ontinued from previous page 16:06 0.4 17:00 0.4 17:54 0.3 18:48 0.2 16:09 0.4 17:03 0.3 17:57 0.3 18:51 0.2 16:12 0.4 17:06 0.3 18:00 0.3 18:54 0.2 16: 15 0.4 17:09 0.3 18:03 0.3 18:57 0.2 16: 18 0.4 17: 12 0.3 18:06 0.3 19:00 0. 1 16:21 0.4 17: 15 0.3 18:09 0.3 19:03 0. 1 16:24 0.4 17: 18 0.3 18: 12 0.3 19:06 0.0 16:27 0.4 17:21 0.3 18: 15 0.3 19:09 0.2 16:30 0.4 17:24 0.3 18: 18 0.3 19: 12 0.1 16:33 0.4 17:27 0.3 18:21 0.3 19: 15 0. 1 16:36 0.4 17:30 0.3 18:24 0.3 19: 18 0.0 16:39 0.4 17:33 0.3 18:27 0.3 19:21 0.2 16:42 0.4 17:36 0.3 18:30 0.3 19:24 0.1 16:45 0.4 17:39 0.3 18:33 0.2 19:27 0. 1 16:48 0.4 17:42 0.3 18:36 0.2 19:30 0.0 16:51 0.4 17:45 0.3 18:39 0.2 19:33 0.2 16:54 0.4 17:48 0.3 18:42 0.2 16:57 0.4 17:51 0.3 18:45 0.2 Volume of runoff = 0. 70 ac. ft. Depth of runoff = 4.33 in. File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 10/30/95 Job 95-324 Misc. Note -CS FIRE STATION HYDROS 8 Type SCS Desc. EXISTING AREA B 25 YR Area 1.9 ac . Time of Concent. 10 min. Storm Dist Type II Time hr:min 6:21 6:24 6:27 6:30 6:33 6:36 6:39 6:42 6:45 6:48 6:51 6:54 6:57 7:00 7:03 7:06 7:09 7:12 7: 15 7: 18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 7:42 7:45 7:48 7:51 7:54 7:57 8:00 8:03 8:06 8:09 8: 12 8: 15 8: 18 8:21 8 :24 8:27 8:30 8:33 Flow cfs 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0. 1 0. 1 0.1 0.1 0. 1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 Time hr:min 8:36 8:39 8:42 8:45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9: 12 9: 15 9:18 9:21 9:24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9:51 9:54 9:57 10:00 10:03 10:06 10:09 10: 12 10:15 10: 18 10:21 10:24 10:27 10:30 10:33 10:36 10:39 10:42 10:45 10:48 Flow cfs 0.1 0.1 0. 1 0. 1 0. 1 0. 1 0. 1 0.1 0. 1 0. 1 0. 1 0. 1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 0.5 0.5 Time hr:min 10:51 10:54 10:57 11 :00 11 :03 11 :06 11:09 11 : 12 11 : 15 11 :18 11 :21 11 :24 11 :27 11 :30 11:33 11 :36 11 :39 11 :42 11 :45 11 :48 11 :51 11 :54 11 :57 12:00 12:03 12:06 12:09 12: 12 12: 15 12: 18 12:21 12:24 12:27 12:30 12:33 12:36 12:39 12:42 12:45 12:48 12:51 12:54 12:57 13:00 13:03 Freq. 25.0 yrs CN 75 Len 24 hrs Precip. 8.80 Flow cfs Time hr:min 0.5 13:06 0.5 13:09 0.6 13:12 0.6 13:15 0.6 13:18 0.6 13:21 0.7 13:24 0. 7 13:27 0.7 13:30 0.8 13:33 0.8 13:36 0.9 13:39 0.9 13:42 1.0 13:45 1.0 13:48 1.6 13:51 2.6 13:54 3.6 13:57 4.1 14:00 4.6 14:03 6.1 14:06 9.2 14:09 11.9 14:12 13.5 14:15 ~ 14:1 8 12.8 14:21 9.0 14:24 5. 7 14:27 4.1 14:30 3.3 14:33 2 .8 14:36 2.3 14:39 2.0 14:42 1.8 14:45 1. 7 14:48 1 .6 14:51 1.5 14:54 1.4 14:57 1.4 15:00 1.4 15:03 1.3 15:06 1.2 15:09 1.2 15: 12 1.1 15:15 1. 1 15: 18 Continued on next page Flow cfs 1. 1 1.0 0.9 0.9 0.9 0.9 0.8 0.8 0.8 0.8 0.8 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 ·ontinued from previous page 15:21 0.6 16: 15 0.5 17:09 0.4 18:03 0.3 15:24 0.6 16: 18 0.5 17: 12 0.4 18:06 0.3 15:27 0.6 16:21 0.5 17: 15 0.4 18:09 0.2 15:30 0.6 16:24 0.5 17: 18 0.4 18: 12 0. 1 15:33 0.6 16:27 0.5 17:21 0.4 18: 15 0.1 15:36 0.6 16:30 0.5 17:24 0.4 18: 18 0.3 15:39 0.5 16:33 0.5 17:27 0.4 18:21 0.2 15:42 0.5 16:36 0.5 17:30 0.4 18:24 0. 1 15:45 0.5 16:39 0.5 17:33 0.4 18:27 0.0 15:48 0.5 16:42 0.5 17:36 0.4 18:30 0.3 15:51 0.5 16:45 0.5 17:39 0.4 18:33 0.2 15:54 0.5 16:48 0.5 17:42 0.4 18:36 0.1 15:57 0.5 16:51 0.4 17:45 0.4 18:39 0.0 16:00 0.5 16:54 0.4 17:48 0.4 18:42 0.3 16:03 0.5 16:57 0.4 17:51 0.4 18:45 0.2 16:06 0.5 17:00 0.4 17:54 0.4 18:48 0. 1 16:09 0.5 17:03 0.4 17:57 0.4 16:12 0.5 17:06 0.4 18:00 0.3 Voll.Jlle of runoff = 0.88 ac. ft. Depth of runoff 5.47 in. File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 10/30/95 Job 95 -324 Misc. Note -CS FIRE STATION HYDROS 9 Type SCS Desc. EXISTING AREA B 50 YR Area 1.9 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 5:57 6:00 6:03 6:06 6:09 6: 12 6: 15 6: 18 6:21 6:24 6:27 6:30 6:33 6:36 6:39 6:42 6:45 6:48 6:51 6:54 6:57 7:00 7:03 7:06 7:09 7: 12 7:15 7: 18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 7:42 7:45 7:48 7:51 7:54 7:57 8:00 8:03 8:06 8:09 Flow cfs 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 Time hr:min 8: 12 8: 15 8:18 8:21 8:24 8:27 8:30 8:33 8:36 8:39 8:42 8:45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9: 12 9: 15 9: 18 9:21 9:24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9:51 9:54 9:57 10:00 10:03 10:06 10:09 10:12 10: 15 10: 18 10:21 10:24 Flow cfs 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0 .2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 Time hr:min 10:27 10:30 10:33 10:36 10:39 10:42 10:45 10:48 10:51 10:54 10:57 11 :00 11 :03 11 :06 11 :09 11 : 12 11: 15 11 :18 11 :21 11 :24 11 :27 11 :30 11 :33 11 :36 11 :39 11 :42 11:45 11:48 11: 51 11:54 11 :57 12:00 12:03 12:06 12:09 12: 12 12: 15 12: 18 12:21 12:24 12:27 12:30 12:33 12:36 12:39 Freq. 50.0 yrs CN 75 Len 24 hrs Precip. 9.80 Flow cfs 0.4 0 .4 0 .4 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.7 0.7 0.7 0.8 0.8 0.9 0.9 0.9 1 .0 1. 0 1 . 1 1 .2 1 .2 1 .8 3.0 4.2 4.8 5.3 6.9 10.4 13.5 15.5 GJ) 15.1 10.8 6.9 4.8 3.8 3 .2 2.7 2.3 2. 1 2.0 1 .9 1 .8 Time hr:min 12:42 12:45 12:48 12:51 12:54 12:57 13:00 13:03 13:06 13:09 13:12 13:15 13: 18 13:21 13:24 13:27 13:30 13:33 13:36 13:39 13:42 13:45 13:48 13:51 13:54 13:57 14:00 14:03 14:06 14:09 14: 12 14:15 14:18 14:21 14:24 14:27 14:30 14:33 14:36 14:39 14:42 14:45 14:48 14:51 14:54 Continued on next page Flow cfs 1. 7 1.6 1.6 1.5 1.4 1.3 1.3 1.2 1.2 1. 1 1. 1 1. 1 1 .0 1 .0 1 .0 0.9 0.9 0.9 0.9 0.8 0.8 0.8 0 .8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 Continued from previous page 14:57 0.7 15:51 0.6 16:45 0.5 17:39 0.2 15:00 0.7 15:54 0.6 16:48 0.5 17:42 0. 1 15:03 0.7 15:57 0.6 16:51 0.5 17:45 0.4 15:06 0.7 16:00 0.6 16:54 0.5 17:48 0.3 15:09 0.7 16:03 0.6 16:57 0.5 17: 51 0.2 15: 12 0.7 16:06 0.6 17:00 0.5 17:54 0.1 15: 15 0.7 16:09 0.6 17:03 0.5 17:57 0.4 15: 18 0.7 16: 12 0.6 17:06 0.5 18:00 0.3 15:21 0.7 16: 15 0.6 17:09 0.5 18:03 0.2 15:24 0.7 16: 18 0.6 17: 12 0.5 18:06 0.1 15:27 0.7 16:21 0.6 17: 15 0.5 18:09 0.4 15:30 0.6 16:24 0.6 17:18 0.5 18: 12 0.3 15:33 0.6 16:27 0.6 17:21 0.5 18: 15 0.2 15:36 0.6 16:30 0.5 17:24 0.5 18: 18 0.0 15:39 0.6 16:33 0.5 17:27 0.4 18:21 0.4 15:42 0.6 16:36 0.5 17:30 0.4 18:24 0.3 15:45 0.6 16:39 0.5 17:33 0.4 15:48 0.6 16:42 0.5 17:36 0.4 Volume of runoff = 1. 02 ac. ft. Depth of runoff = 6.33 in. File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 10/30/95 Job 95-324 Misc. Note -cs FIRE STATION HYDROS 10 Type SCS Desc. EXISTING AREA B 100 YR Area 1.9 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 5:27 5:30 5:33 5:36 5:39 5:42 5:45 5:48 5:51 5:54 5:57 6:00 6:03 6:06 6:09 6: 12 6:15 6: 18 6:2 1 6:24 6:27 6:30 6:33 6:36 6:39 6:42 6:45 6:48 6:51 6:54 6:57 7 :00 7:03 7:06 7:09 7:12 7: 15 7: 18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 Flow cfs 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0 .1 0. 1 0. 1 0.1 0.1 0.1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Time hr:min 7:42 7:45 7:48 7:51 7:54 7:57 8:00 8:03 8:06 8:09 8:12 8:15 8:18 8:21 8:24 8:27 8:30 8:33 8:36 8:39 8:42 8:45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9: 12 9:15 9: 18 9:21 9:24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9:51 9:54 Flow cfs 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0 .3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 Time hr:min 9:57 10:00 10:03 10:06 10:09 10:12 10: 15 10: 18 10:21 10:24 10:27 10:30 10:33 10:36 10:39 10:42 10:45 10:48 10:51 10:54 10:57 11:00 11:03 11:06 11:09 11: 12 11: 15 11: 18 11:21 11:24 11:27 11:30 11:33 11:36 11:39 11:42 11 :45 11:48 11: 51 11 :54 11 :57 12:00 12:03 12:06 12:09 Freq. 100.0 yrs CN 75 Len 24 hrs Precip. 11.00 Flow cfs Time hr:min 0.4 12:12 0.4 12:15 0.4 12:18 0.4 12:21 0.4 12:24 0.4 12:27 0.4 12:30 0.4 12:33 0.4 12:36 0.5 12:39 0.5 12:42 0.5 12:45 0.5 12:48 0.6 12:51 0.6 12:54 0 .7 12:57 0.7 13:00 0.7 13:03 0. 7 13:06 0.8 13:09 0.8 13: 12 0.9 13:15 0.9 13:18 0.9 13:21 1.0 13:24 1.0 13:27 1.1 13:30 1.1 13:33 1.2 13:36 1.3 13:39 1.4 13:42 1.4 13:45 1.5 13:48 2.3 13:51 3.8 13:54 5.1 13:57 5 .8 14:00 6.4 14:03 8. 7 14:06 12.7 14:09 16.2 14:12 18.2 14:15 <![£) 14:18 16.8 14:21 11. 7 14:24 Continued on next page Flow cfs 7.4 5.3 4.3 3.6 3.0 2.6 2.3 2.2 2. 1 2.0 1.9 1.8 1.8 1. 7 1.6 1.5 1. 4 1. 4 1.4 1.3 1. 2 1.2 1.2 1.2 1.1 1.1 1.0 1.0 1 .0 1.0 1.0 1.0 1.0 0.9 0.9 0.9 0 .9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 .• ont i nued from previous page 14:27 0.9 15:21 0.8 16: 15 0.7 17:09 0.5 14:30 0.9 15:24 0.8 16: 18 0.7 17: 12 0.2 14:33 0.9 15:27 0.8 16:21 0.6 17: 15 0. 1 14:36 0.9 15:30 0.7 16:24 0.6 17: 18 0.5 14:39 0.9 15:33 0.7 16:27 0.6 17:21 0.4 14:42 0.8 15:36 0.7 16:30 0.6 17:24 0.2 14:45 0.8 15:39 0.7 16:33 0.6 17:27 0.1 14:48 0.8 15:42 0.7 16:36 0.6 17:30 0.5 14:51 0.8 15:45 0.7 16:39 0.6 17:33 0.3 14:54 0.8 15:48 0.7 16:42 0.6 17:36 0.2 14:57 0.8 15:51 0.7 16:45 0.6 17:39 0. 1 15:00 0.8 15:54 0.7 16:48 0.6 17:42 0.5 15:03 0.8 15:57 0.7 16:51 0.6 17:45 0.3 15:06 0.8 16:00 0.7 16:54 0.6 17:48 0.2 15:09 0.8 16:03 0.7 16:57 0.6 17:51 0. 1 15: 12 0.8 16:06 0.7 17:00 0.6 17:54 0.5 15:15 0.8 16:09 0.7 17:03 0.6 15:18 0.8 16: 12 0.7 17:06 0.6 VolllTle of runoff = 1.17ac. ft. Depth of runoff = 7.27 in. Appendix C Runoff Calculations (Hydrographs) B(DEV) File Name· CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 10/30/95 Job 95-324 Misc. Note -CS FIRE STATION HYDROS 11 Type SCS Desc. PROPOSED AREA 8 5 YR Area 1.9 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 2: 18 2:21 2:24 2:27 2:30 2:33 2:36 2:39 2:42 2:45 2:48 2:51 2:54 2:57 3:00 3:03 3:06 3:09 3: 12 3: 15 3: 18 3:21 3:24 3:27 3:30 3:33 3:36 3:39 3:42 3:45 3:48 3:51 3:54 3:57 4:00 4:03 4:06 4:09 4: 12 4: 15 4:18 4:21 4:24 4:27 4:30 Flow cfs 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 o.o 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0. 1 0. 1 0. 1 0.1 0.1 0.1 0.1 0.1 0. 1 0. 1 0.1 0. 1 Time hr:min 4:33 4:36 4:39 4:42 4:45 4:48 4:51 4:54 4:57 5:00 5:03 5:06 5:09 5: 12 5: 15 5: 18 5:21 5:24 5:27 5:30 5:33 5:36 5:39 5:42 5:45 5:48 5:51 5:54 5:57 6:00 6:03 6:06 6:09 6:12 6: 15 6:18 6:21 6:24 6:27 6:30 6:33 6:36 6:39 6:42 6:45 Flow cfs 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0. 1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0 .1 0.1 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Time hr:min 6:48 6:51 6:54 6:57 7:00 7:03 7:06 7:09 7: 12 7: 15 7: 18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 7:42 7:45 7:48 7:51 7:54 7:57 8:00 8:03 8:06 8:09 8: 12 8: 15 8: 18 8:21 8:24 8:27 8:30 8:33 8:36 8:39 8:42 8:45 8:48 8:51 8:54 8:57 9:00 Freq. 5.0 yrs CN 94 Len 24 hrs Precip. 6.20 Flow cfs 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Time hr:min 9:03 9:06 9:09 9: 12 9: 15 9: 18 9:21 9:24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9:51 9:54 9:57 10:00 10:03 10:06 10:09 10: 12 10: 15 10: 18 10:21 10:24 10:27 10:30 10:33 10:36 10:39 10:42 10:45 10:48 10:51 10:54 10:57 11 :00 11 :03 11 :06 11:09 11: 12 11 : 15 Continued on next page Flow cfs 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.7 0.7 0.7 0.8 0.8 0.8 0.8 0.9 0.9 ·ontinued from previous page 11: 18 0.9 12: 12 4.6 13:06 0.8 14:00 0.6 11: 21 1.0 12: 15 3.3 13:09 0.8 14:03 0.6 11:24 1 .0 12: 18 2.7 13: 12 0.7 14:06 0.6 11:27 1.1 12:21 2.2 13: 15 0.7 14:09 0.6 11:30 1.1 12:24 1.8 13: 18 0.7 14: 12 0.4 11:33 1.2 12:27 1 .6 13:21 0.7 14: 15 0.2 11:36 1.8 12:30 1.4 13:24 0.7 14: 18 0.1 11:39 3.0 12:33 1.4 13:27 0 .6 14:21 0.5 11:42 3.8 12:36 1.3 13:30 0.6 14:24 0.4 11:45 4.3 12:39 1.2 13:33 0.6 14:27 0 .2 11:48 4.7 12:42 1.2 13:36 0.6 14:30 0.1 11: 51 6.2 12:45 1. 1 13:39 0.6 14:33 0.5 11:54 8.9 12:48 1. 1 13:42 0.6 14:36 0 .4 11:57 10.9 12:51 1.1 13:45 0 .6 14:39 0.2 12:00 12.0 12:54 1 .0 13:48 0.6 14:42 0. 1 12:03 CI[!) 12:57 0.9 13:51 0.6 14:45 0.5 12:06 10.6 13:00 0.9 13:54 0.6 12:09 7.2 13:03 0.9 13:57 0.6 Volune of runoff = 0.73 ac. ft. Depth of runoff 4.55 in. File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 10/30/95 Job 95-324 Misc. Note -CS FIRE STATION HYDROS 12 Type SCS Desc. PROPOSED AREA B 10 YR Area 1.9 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 2:00 2:03 2:06 2:09 2: 12 2: 15 2: 18 2:21 2:24 2:27 2:30 2:33 2:36 2:39 2:42 2:45 2:48 2:51 2:54 2:57 3:00 3:03 3:06 3:09 3: 12 3: 15 3: 18 3:21 3:24 3:27 3:30 3:33 3:36 3:39 3:42 3:45 3:48 3:51 3:54 3:57 4:00 4:03 4:06 4:09 4: 12 Flow cfs 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 .0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0. 1 0.1 0.1 0. 1 0. 1 0.1 0. 1 Time hr:min 4: 15 4:18 4:21 4:24 4:27 4:30 4:33 4:36 4:39 4:42 4:45 4:48 4:51 4:54 4:57 5:00 5:03 5:06 5:09 5: 12 5: 15 5: 18 5:21 5:24 5:27 5:30 5:33 5:36 5:39 5:42 5:45 5:48 5:51 5:54 5:57 6:00 6:03 6:06 6:09 6: 12 6: 15 6: 18 6:21 6:24 6:27 Flow cfs 0. 1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0. 1 0. 1 0. 1 0. 1 0 .1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Time hr:min 6:30 6:33 6:36 6:39 6:42 6:45 6:48 6:51 6:54 6:57 7:00 7:03 7:06 7:09 7:12 7: 15 7: 18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 7:42 7:45 7:48 7:51 7:54 7:57 8:00 8:03 8:06 8:09 8: 12 8: 15 8: 18 8:21 8:24 8:27 8:30 8:33 8:36 8:39 8:42 Freq. 10.0 yrs CN 94 Len 24 hrs Precip. 7.40 Flow cfs 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0 .2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Time hr:min 8:45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9: 12 9: 15 9: 18 9:21 9:24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9:51 9:54 9:57 10:00 10:03 10:06 10:09 10 :12 10: 15 10: 18 10:21 10:24 10:27 10:30 10:33 10:36 10:39 10:42 10:45 10 :48 10:51 10 :54 10:57 Continued on next page Flow cfs 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0 .4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0 .5 0.5 0 .6 0.6 0.6 0.6 0.6 0.7 0.7 0.8 0.8 0.8 0.8 0.9 :ontinued from previous page 11:00 0.9 11: 54 9.7 12:48 1.3 13:42 0.8 11:03 0.9 11 :57 12.6 12:51 1.3 13:45 0.8 11:06 1.0 12:00 14.1 12:54 1.2 13:48 0.8 11 :09 1.0 12:03 CI[!) 12:57 1.1 13:51 0.7 11: 12 1.1 12:06 13.8 13:00 1.1 13:54 0.7 11: 15 1.1 12:09 10.0 13:03 1.0 13:57 0.5 11: 18 1. 1 12:12 6 .4 13:06 1.0 14:00 0.3 11 :21 1.1 12: 15 4.4 13:09 1.0 14:03 0. 1 11:24 1.2 12: 18 3.4 13: 12 0.9 14:06 0.7 11:27 1.3 12 :21 2.8 13: 15 0.9 14:09 0.5 11 :30 1.4 12:24 2.3 13: 18 0.9 14: 12 0.3 11 :33 1.4 12:27 2.0 13:21 0.8 14:15 0.1 11:36 1.9 12:30 1.8 13:24 0.8 14: 18 0.6 11:39 3.2 12:33 1. 7 13:27 0.8 14:21 0.4 11:42 4.4 12:36 1.6 13:30 0.8 14:24 0.3 11:45 5. 1 12:39 1.5 13:33 0.8 14:27 0.1 11:48 5.5 12:42 1.4 13:36 0.8 11: 51 6.7 12:45 1.4 13:39 0.8 Volume of runoff = 0.87 ac. ft. Depth of runoff 5.42 in. File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 10/30/95 Job 95-324 Misc. Note -CS FIRE STATION HYDROS 13 Type SCS Desc. PROPOSED AREA B 25 YR Area 1.9 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 1 :42 1 :45 1:48 1 :51 1:54 1 :57 2:00 2:03 2:06 2:09 2: 12 2: 15 2:18 2:21 2:24 2:27 2:30 2:33 2:36 2:39 2:42 2:45 2:48 2:51 2:54 2:57 3:00 3:03 3:06 3:09 3: 12 3: 15 3: 18 3:21 3:24 3:27 3:30 3:33 3:36 3:39 3:42 3:45 3:48 3:51 3:54 Flow cfs 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.1 0. 1 0. 1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Time hr:min 3:57 4:00 4:03 4:06 4:09 4: 12 4: 15 4: 18 4:21 4:24 4:27 4:30 4:33 4:36 4:39 4:42 4:45 4:48 4:51 4:54 4:57 5:00 5:03 5:06 5:09 5: 12 5:15 5: 18 5:21 5:24 5:27 5:30 5:33 5:36 5:39 5:42 5:45 5:48 5:51 5:54 5:57 6:00 6:03 6:06 6:09 Flow cfs 0.1 0. 1 0.1 0.1 0. 1 0. 1 0. 1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Time hr:min 6:12 6: 15 6: 18 6:21 6:24 6:27 6:30 6:33 6:36 6:39 6:42 6:45 6:48 6:51 6:54 6:57 7:00 7:03 7:06 7:09 7: 12 7: 15 7:18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 7:42 7:45 7:48 7:51 7:54 7:57 8:00 8:03 8:06 8:09 8: 12 8: 15 8: 18 8:21 8:24 Freq. 25.0 yrs CN 94 Len 24 hrs Precip. 8.80 Flow cfs 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 Time hr:min 8:27 8:30 8:33 8:36 8:39 8:42 8:45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9: 12 9: 15 9:18 9:21 9:24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9:51 9:54 9:57 10:00 10:03 10:06 10:09 10: 12 10: 15 10: 18 10:21 10:24 10:27 10:30 10:33 10:36 10:39 Continued on next page Flow cfs 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.7 0.7 0.7 0.8 0.8 0.9 'ontinued from previous page 10:42 0.9 11 :36 2.6 12:30 2.1 13:24 0.9 10:45 0.9 11:39 4 .2 12:33 2.0 13:27 0.9 10:48 0.9 11:42 5.6 12:36 1.9 13:30 0.9 10:51 1.0 11 :45 6.3 12:39 1.8 13:33 0.9 10:54 1.0 11:48 6.7 12:42 1. 7 13:36 0.9 10:57 1.1 11 : 51 8.7 12:45 1.6 13:39 0.8 11:00 1 . 1 11:54 12.6 12:48 1.6 13:42 0.3 11:03 1 . 1 11 :57 15.6 12:51 1.5 13:45 0.1 11:06 1. 2 12:00 17.2 12:54 1.4 13:48 0.8 11:09 1.3 12:03 ~ 12:57 1 .3 13:51 0.5 11: 12 1.3 12:06 . 13:00 1.3 13:54 0.3 11: 15 1.3 12:09 10.8 13:03 1. 2 13:57 0.1 11: 18 1.4 12: 12 6.8 13:06 1. 2 14:00 0.7 11: 21 1.4 12: 15 4.8 13:09 1. 1 14:03 0.5 11:24 1. 5 12: 18 3.9 13: 12 1.0 14:06 0.3 11 :27 1.6 12:21 3.2 13: 15 0.9 14:09 0. 1 11:30 1. 7 12:24 2.7 13: 18 0.9 11 :33 1.8 12:27 2.3 13:21 0.9 Voll.Ille of runoff = 1.04 ac. ft. Depth of runoff 6.49 in. File Name· CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 10/30/95 Job 95-324 Misc. Note -CS FIRE STATION HYDROS 14 Type SCS Desc. PROPOSED AREA B 50 YR Area 1.9 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 1:33 1:36 1:39 1 :42 1:45 1 :48 1: 51 1:54 1 :57 2:00 2:03 2:06 2:09 2: 12 2: 15 2: 18 2:21 2:24 2:27 2:30 2:33 2:36 2:39 2:42 2:45 2:48 2:51 2:54 2:57 3:00 3:03 3:06 3:09 3: 12 3: 15 3: 18 3:21 3:24 3:27 3:30 3:33 3:36 3:39 3:42 3:45 Flow cfs 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0. 1 0.1 0. 1 0. 1 0.1 0. 1 0.1 0. 1 0.1 0.1 0. 1 0.1 0. 1 0. 1 0. 1 0.1 0. 1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0. 1 0. 1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 Time hr:min 3:48 3:51 3:54 3:57 4:00 4:03 4:06 4:09 4: 12 4: 15 4:18 4:21 4:24 4:27 4:30 4:33 4:36 4:39 4:42 4:45 4:48 4:51 4:54 4:57 5:00 5:03 5:06 5:09 5: 12 5: 15 5: 18 5:21 5:24 5:27 5:30 5:33 5:36 5:39 5:42 5:45 5:48 5:51 5:54 5:57 6:00 Flow cfs 0. 1 0. 1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Time hr:min 6:03 6:06 6:09 6: 12 6: 15 6: 18 6:21 6:24 6:27 6:30 6:33 6:36 6:39 6:42 6:45 6:48 6:51 6:54 6:57 7:00 7:03 7:06 7:09 7:12 7: 15 7: 18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 7:42 7:45 7:48 7:51 7:54 7:57 8:00 8:03 8:06 8:09 8: 12 8: 15 Freq. 50.0 yrs CN 94 Len 24 hrs Precip. 9.80 Flow cfs 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 Time hr:min 8:18 8:21 8:24 8:27 8:30 8:33 8:36 8:39 8:42 8:45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9: 12 9: 15 9: 18 9:21 9:24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9:51 9:54 9:57 10:00 10:03 10:06 10:09 10: 12 10: 15 10: 18 10:21 10:24 10:27 10:30 Continued on next page Flow cfs 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.7 0.7 0.7 0.7 0.7 0.8 0.8 0.8 .ontinued from previous page 10:33 0.8 11:27 1.8 12:21 3.6 13: 15 1 . 1 10:36 0.9 11:30 1.9 12:24 3.0 13: 18 1 . 1 10:39 1.0 11:33 2.0 12:27 2.5 13:21 1. 1 10:42 1.0 11 :36 2.9 12:30 2.3 13:24 1. 1 10:45 1.0 11:39 4.8 12:33 2.2 13:27 1.1 10:48 1.1 11:42 6.2 12:36 2. 1 13:30 1.1 10:51 1.1 11 :45 7.0 12:39 2.0 13:33 1.1 10:54 1.2 11:48 7.5 12:42 1.8 13:36 1.0 10:57 1. 2 11: 51 9.8 12:45 1.8 13:39 0.7 11:00 1.3 11:54 14. 1 12:48 1.8 13:42 0.4 11:03 1.3 11:57 17 .5 12:51 1. 7 13:45 0. 1 11:06 1.3 12:00 19.2 12:54 1.6 13:48 0.9 11:09 1.4 12:03 G0 12:57 1.5 13:51 0.7 11: 12 1.5 12:06 17.3 13:00 1.4 13:54 0.4 11: 15 1.5 12:09 12.0 13:03 1.3 13:57 0.1 11: 18 1.5 12:12 7.6 13:06 1.2 14:00 0.9 11: 21 1.6 12: 15 5.4 13:09 1.2 11:24 1. 7 12: 18 4.3 13: 12 1.1 Voll.Ille of runoff = 1.16 ac. ft. Depth of runoff 7.23 in. File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 10/30/95 Job 95-324 Misc. Note -cs FIRE STATION HYDROS 15 Type SCS Desc. PROPOSED AREA B 100 YR Area 1.9 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 1 :24 1 :27 1:30 1 :33 1 :36 1 :39 1 :42 1 :45 1 :48 1: 51 1 :54 1 :57 2:00 2:03 2:06 2:09 2: 12 2: 15 2: 18 2:21 2:24 2:27 2:30 2:33 2:36 2:39 2:42 2:45 2:48 2:51 2:54 2:57 3:00 3:03 3:06 3:09 3: 12 3: 15 3:18 3:21 3:24 3:27 3:30 3:33 3:36 Flow cfs 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0. 1 0.1 Time hr:min 3:39 3:42 3:45 3:48 3:51 3:54 3:57 4:00 4:03 4:06 4:09 4:12 4: 15 4: 18 4:21 4:24 4:27 4:30 4:33 4:36 4:39 4:42 4:45 4:48 4:51 4:54 4:57 5:00 5:03 5:06 5:09 5: 12 5: 15 5: 18 5:21 5:24 5:27 5:30 5:33 5:36 5:39 5:42 5:45 5:48 5:51 Flow cfs 0. 1 0. 1 0.1 0. 1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Time hr:min 5:54 5:57 6:00 6:03 6:06 6:09 6: 12 6: 15 6: 18 6:21 6:24 6:27 6:30 6:33 6:36 6:39 6:42 6:45 6:48 6:51 6:54 6:57 7:00 7:03 7:06 7:09 7: 12 7: 15 7: 18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 7:42 7:45 7:48 7:51 7:54 7:57 8:00 8:03 8:06 Freq. 100.0 yrs CN 94 Len 24 hrs Precip. 11.00 Flow cfs 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Time hr:min 8:09 8: 12 8: 15 8: 18 8:21 8:24 8:27 8:30 8:33 8:36 8:39 8:42 8:45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9: 12 9: 15 9: 18 9:21 9:24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9:51 9:54 9:57 10:00 10:03 10:06 10:09 10: 12 10:15 10: 18 10:21 Continued on next page Flow cfs 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.8 0.8 0.8 0.8 0.8 :ontinued from prev i ous page 10:24 0.9 11: 18 1. 7 12: 12 8.9 13:06 1 . 1 10:27 0.9 11:21 1.8 12:15 6 .2 13:09 1.1 10:30 0.9 11:24 1.9 12: 18 5.0 13: 12 1.1 10:33 1.0 11:27 2.0 12:21 4.1 13: 15 1.1 10:36 1.0 11 :30 2.1 12:24 3.4 13: 18 1.1 10:39 1.1 11:33 2.2 12:27 2.9 13:21 1.1 10:42 1.2 11 :36 3.1 12:30 2.6 13:24 1 . 1 10:45 1.2 11 :39 5.2 12:33 2.5 13:27 1.0 10:48 1.2 11:42 6.9 12:36 2.4 13:30 0.7 10:51 1.2 11:45 7.8 12:39 2.2 13:33 0.4 10:54 1.3 11 :48 8.4 12:42 2.1 13:36 0.1 10:57 1.4 11: 51 10.6 12:45 2.0 13:39 0 .9 11:00 1.4 11:54 15.4 12:48 2.0 13:42 0.7 11 :03 1. 5 11 :57 19.4 12:51 1.9 13:45 0.4 11:06 1.5 12:00 21.5 12:54 1.8 13:48 0. 1 11:09 1.6 12:03 12:57 1.6 13:51 0.9 11: 12 1. 7 12:06 20.0 13:00 1. 2 11: 15 1. 7 12:09 14.1 13:03 1. 1 Voll.ITie of runoff = 1.29 ac. ft. Depth of runoff 8.02 in. Appendix D Runoff Calculations (Hydrographs) A(EX)+B(EX) File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 11/13/95 Job 95-324 Misc. Note -CS FIRE STATION HYDROS 16 Type scs Desc. EXISTING 5 YR A+B Area 5.3 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 6:09 6:13 6:17 6:21 6:25 6:29 6:33 6:37 6:41 6:45 6:49 6:53 6:57 7:01 7:05 7:09 7: 13 7:17 7:21 7:25 7:29 7:33 7:37 7:41 7:45 7:49 7:53 7:57 8:01 8:05 8:09 8:13 8:17 8:21 8:25 8:29 8:33 8:37 8:41 8:45 8:49 8:53 8:57 9:01 9:05 Flow cfs 0.0 0.0 0.0 0.0 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0. 1 0.1 0. 1 0.1 0.1 0.1 0. 1 0.1 0.1 0. 1 0.1 0. 1 0. 1 0.1 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Time hr:min 9:09 9:13 9:17 9:21 9:25 9:29 9:33 9:37 9:41 9:45 9:49 9:53 9:57 10:01 10:05 10:09 10:13 10: 17 10:21 10:25 10:29 10:33 10:37 10:41 10:45 10:49 10:53 10:57 11: 01 11 :05 11 :09 11: 13 11: 17 11: 21 11: 25 11 :29 11 :33 11:37 11 :41 11:45 11:49 11:53 11 :57 12:01 12:05 Flow cfs 0.2 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.7 0.8 0.8 0.9 0.9 1 .0 1 . 1 1.2 1 .2 1.3 1.4 1.5 1.6 1.8 2.4 3.9 6.0 7.9 10.6 15. 7 21.8 ~ 23.9 Time hr:min 12:09 12: 13 12:17 12:21 12:25 12:29 12:33 12:37 12:41 12:45 12:49 12:53 12:57 13:01 13:05 13:09 13: 13 13 : 17 13:21 13:25 13:29 13:33 13:37 13:41 13:45 13:49 13:53 13:57 14:01 14:05 14:09 14: 13 14:17 14:21 14:25 14:29 14:33 14:37 14:41 14:45 14:49 14:53 14: 57 15:01 15:05 Freq. 5.0 yrs CN 80 Len 24 hrs Precip. 6.20 Flow cfs 17.2 10.3 7. 1 5.3 4.2 3.6 3.2 3.0 2.8 2.6 2.5 2.4 2.2 2.1 2.0 1.9 1.8 1. 7 1.6 1.5 1.5 1.4 1.4 1.3 1.3 1 .3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.2 1.2 1.2 1.2 1 .2 1.2 1.2 1.2 1.2 1 .2 1.2 Time hr:min 15:09 15:13 15: 17 15:21 15:25 15:29 15:33 15:37 15:41 15:45 15:49 15:53 15:57 16:01 16:05 16:09 16: 13 16:17 16:21 16:25 16:29 16:33 16:37 16:41 16:45 16:49 16:53 16:57 17:01 17:05 17:09 17: 13 17: 17 17:21 17:25 17:29 17:33 17:37 17:41 17:45 17:49 17:53 17:57 18:01 18:05 Continued on next page Flow cfs 1 .2 1 .2 1.1 1 . 1 1 . 1 1. 1 1.0 1.0 1.0 1.0 1 .0 1 .0 1 .0 1.0 1 .0 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.8 0.8 0.8 0.7 0.6 0.6 0.6 0.5 0.6 0.5 0.4 0.5 0.5 0.4 0.4 0.3 0.2 0.2 Continued from previous page 18:09 0.2 18:33 0.2 18:57 0.2 19:21 0.2 18: 13 0.2 18:37 0.2 19:01 0.2 19:25 0.2 18: 17 0.2 18:41 0.2 19:05 0.2 19:29 0.2 18:21 0.2 18:45 0.2 19:09 0 .2 19:33 0. 1 18:25 0.2 18:49 0.2 19:13 0.2 19:37 0. 1 18:29 0.2 18:53 0 .2 19: 17 0.2 19:41 0. 1 Vol1..me of runoff = 1.65 ac. ft. Depth of runoff = 3.77 in. File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 11/13/95 Job 95 -324 Misc. Note -CS FIRE STATION HYDROS 17 Type SCS Desc. EXISTING A+B 10 YR Area 5.3 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 5:23 5:27 5:31 5:35 5:39 5:43 5:47 5:51 5:55 5:59 6:03 6:07 6:11 6: 15 6: 19 6:23 6:27 6:31 6:35 6:39 6:43 6:47 6:51 6:55 6:59 7:03 7:07 7: 11 7:15 7: 19 7:23 7:27 7:31 7:35 7:39 7:43 7:47 7:51 7:55 7:59 8:03 8:07 8: 11 8: 15 8:19 Flow cfs 0.0 0.0 0.0 0.0 0.1 0.1 0.1 0.1 0. 1 0.1 0. 1 0. 1 0. 1 0. 1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0. 1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Time hr:min 8:23 8:27 8:31 8:35 8:39 8:43 8:47 8:51 8:55 8:59 9:03 9:07 9: 11 9: 15 9: 19 9:23 9:27 9:31 9:35 9:39 9:43 9:47 9:51 9:55 9:59 10:03 10:07 10: 11 10: 15 10: 19 10:23 10:27 10:31 10:35 10:39 10:43 10:47 10:51 10:55 10:59 11 :03 11:07 11: 11 11: 15 11: 19 Flow cfs 0.3 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.7 0.7 0.7 0.8 0.8 0.8 0.9 0.9 1.0 1. 1 1.2 1.3 1.4 1.4 1.5 1.6 1 . 7 1.8 2.0 Time hr:min 11:23 11:27 11 :31 11 :35 11:39 11 :43 11 :47 11: 51 11: 55 11:59 12:03 12:07 12: 11 12: 15 12:19 12:23 12:27 12:31 12:35 12:39 12:43 12:47 12:51 12:55 12:59 13:03 13:07 13: 11 13: 15 13:19 13:23 13:27 13:31 13:35 13:39 13:43 13:47 13:51 13:55 13:59 14:03 14:07 14: 11 14: 15 14: 19 Freq. 10.0 yrs CN 80 Len 24 hrs Precip. 7.40 Flow cfs 2. 1 2.3 2.6 3.7 6.3 9.0 11. 2 16.2 23.8 30.1 Q2]) 26.8 17.9 11. 0 7.6 6.0 4.8 4.2 3.9 3.6 3.3 3.2 3.1 2.8 2.6 2.5 2.4 2.3 2.2 2. 1 2.0 1.9 1.8 1.8 1. 7 1. 7 1. 7 1. 7 1.6 1.6 1.6 1.6 1.6 1.6 1. 5 Time hr:min 14:23 14:27 14:31 14:35 14:39 14:43 14:47 14:51 14:55 14:59 15:03 15:07 15: 11 15: 15 15: 19 15:23 15:27 15:31 15:35 15:39 15:43 15:47 15:51 15:55 15:59 16:03 16:07 16: 11 16: 15 16: 19 16:23 16:27 16:31 16:35 16:39 16:43 16:47 16:51 16:55 16:59 17:03 17:07 17: 11 17: 15 17:19 Continued on next page Flow cfs 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.4 1.4 1.4 1.4 1.4 1. 4 1.3 1.3 1.3 1.3 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1. 2 1 .2 1.2 1 . 1 1 . 1 1.0 0.8 0.7 0.8 0.7 0.7 0.8 0.6 0.6 0.7 0.4 0.3 Continued from previous page 17:23 0.3 17:55 0.3 18:27 0.2 18:59 0 .1 17:27 0.3 17:59 0.3 18:31 0.2 19:03 0.0 17:31 0.3 18:03 0.3 18:35 0.2 19:07 0.0 17:35 0.3 18:07 0.3 18:39 0.2 19: 11 0.1 17:39 0 .3 18: 11 0.3 18:43 0.2 19: 15 0.0 17:43 0.3 18: 15 0.3 18:47 0.2 19: 19 0.0 17:47 0.3 18: 19 0.3 18:51 0.2 19:23 0.1 17:51 0.3 18:23 0.3 18:55 0.1 19:27 0.0 Voll.file of runoff = 2.07 ac. ft. Oepth of runoff = 4.72 in. File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 11/13/95 Job 95 -3 24 Misc. Note -CS FIRE STATION HYDROS 18 Type SCS Desc. EXISTING A+B 25 YR Area 5.3 ac. Time of Concent. 10 min. Storm Dist Type JI Time hr:min 4:32 4:36 4:40 4:44 4:48 4:52 4:56 5:00 5:04 5:08 5: 12 5: 16 5:20 5:24 5:28 5:32 5:36 5:40 5:44 5:48 5:52 5:56 6:00 6:04 6:08 6: 12 6:16 6:20 6:24 6:28 6:32 6:36 6:40 6:44 6:48 6:52 6:56 7:00 7:04 7:08 7: 12 7: 16 7:20 7:24 7:28 Flow cfs 0.0 0.0 0.0 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Time hr:min 7:32 7:36 7:40 7:44 7:48 7:52 7:56 8:00 8:04 8:08 8: 12 8:16 8:20 8:24 8:28 8:32 8:36 8:40 8:44 8:48 8:52 8:56 9:00 9:04 9:08 9:12 9: 16 9:20 9:24 9:28 9:32 9:36 9:40 9:44 9:48 9:52 9:56 10:00 10:04 10:08 10: 12 10: 16 10:20 10:24 10:28 Flow cfs 0.2 0.2 0.3 0.3 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.7 0.7 0.7 0.7 0 .7 0.7 0.7 0.8 0.8 0.8 0.8 0.8 0.9 0.9 0.9 1.0 1. 0 1 . 1 1. 1 Time hr:min 10:32 10:36 10:40 10:44 10:48 10:52 10:56 11 :00 11: 04 11 :08 11 : 12 11 : 16 11 :20 11:24 11:28 11:32 11:36 11:40 11:44 11 :48 11:52 11:56 12:00 12:04 12:08 12: 12 12: 16 12:20 12:24 12:28 12:32 12:36 12:40 12:44 12:48 12:52 12:56 13:00 13:04 13:08 13:12 13:16 13:20 13:24 13:28 Freq. 25 .0 yrs CN 80 Len 24 hrs Precip. 8.80 Flow cfs 1.2 1.3 1.4 1.6 1. 7 1.8 1.9 2.0 2. 1 2.2 2.4 2.5 2.6 2.8 3.1 3.6 5.4 8.9 12. 1 15.2 22.1 31.6 38.5 ~ 31.1 20.0 12.4 8.9 7.0 5.7 5. 1 4.7 4.3 4.1 3.9 3.7 3.4 3.2 3.1 2.9 2.7 2.6 2.5 2.4 2.3 Time hr:min 13:32 13:36 13:40 13:44 13:48 13:52 13:56 14:00 14:04 14:08 14: 12 14: 16 14:20 14:24 14:28 14:32 14:36 14:40 14:44 14:48 14:52 14:56 15:00 15:04 15:08 15: 12 15: 16 15:20 15:24 15:28 15:32 15:36 15:40 15:44 15:48 15:52 15 :5 6 16:00 16:04 16:08 16: 12 16: 16 16:20 16:24 16:28 Continued on next page Flow cfs 2.2 2.2 2. 1 2. 1 2. 1 2. 1 2. 1 2.0 2.0 2.0 2.0 2.0 2.0 1.9 1.9 1.9 1.8 1.8 1.8 1.8 1.8 1.8 1.8 1. 7 1. 7 1. 7 1. 7 1. 7 1. 7 1. 7 1. 7 1.6 1. 5 1. 5 1. 5 1. 5 1.5 1.5 1.4 1.2 0.9 0.9 1.0 0.9 0.9 ontinued from previous page 16:32 1.0 17:08 0.4 17:44 0.4 18:20 0.2 16:36 0.9 17: 12 0.4 17:48 0.4 18:24 0.1 16:40 0.6 17: 16 0.4 17:52 0.4 18:28 0.1 16:44 0.5 17:20 0.4 17:56 0.3 18:32 0.1 16:48 0.4 17:24 0.4 18:00 0.3 18:36 0.1 16:52 0.4 17:28 0.4 18:04 0.2 18:40 0.1 16:56 0.4 17:32 0.4 18:08 0.2 18:44 0.1 17:00 0.4 17:36 0.4 18:12 0. 1 18:48 0.0 17:04 0.4 17:40 0.4 18: 16 0. 1 18:52 0.0 Volune of runoff = 2.56 ac. ft. Depth of runoff = 5.83 in. File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 11/13/95 Job 95-324 Misc. Note -CS FIRE STATION HYDROS 19 Type SCS Desc. EX A+B 50 YR Area 5.3 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 4:05 4:09 4: 13 4: 17 4:21 4:25 4:29 4:33 4:37 4:41 4:45 4:49 4:53 4:57 5:01 5:05 5:09 5: 13 5:17 5:21 5:25 5:29 5:33 5:37 5:41 5:45 5:49 5:53 5:57 6:01 6:05 6:09 6: 13 6:17 6:21 6:25 6:29 6:33 6:37 6:41 6:45 6:49 6:53 6:57 7:01 Flow cfs 0.0 0.0 0.0 0.0 0.1 0. 1 0.1 0. 1 0.1 0. 1 0.1 0.1 0.1 0. 1 0.1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0.1 0. 1 0. 1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.4 0.4 Time hr:min 7:05 7:09 7:13 7:17 7:21 7:25 7:29 7:33 7:37 7:41 7:45 7:49 7:53 7:57 8:01 8:05 8:09 8:13 8: 17 8:21 8:25 8:29 8:33 8:37 8:41 8:45 8:49 8:53 8:57 9:01 9:05 9:09 9:13 9:17 9:21 9:25 9:29 9:33 9:37 9:41 9:45 9:49 9:53 9:57 10:01 Flow cfs 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.6 0.6 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.8 0.8 0.8 0.8 0.8 0.8 0.9 0.9 1.0 1.0 1. 1 1 . 1 1. 1 Time hr:min 10:05 10:09 10: 13 10: 17 10:21 10:25 10:29 10:33 10:37 10:41 10:45 10:49 10:53 10:57 11 :01 11:05 11:09 11: 13 11 : 17 11 : 21 11 :25 11 :29 11 :33 11:37 11: 41 11 :45 11 :49 11:53 11:57 12:01 12:05 12:09 12: 13 12: 17 12:21 12:25 12:29 12:33 12:37 12:41 12:45 12:49 12:53 12:57 13:01 Freq. 50.0 yrs CN 80 Len 24 hrs Precip. 9.80 Flow cfs Time hr:min 1.1 13:05 1.1 13:09 1.1 13: 13 1.2 13:17 1 .3 13:21 1.3 13:25 1.4 13:29 1.5 13:33 1.6 13:37 1.7 13:41 1.9 13:45 2.0 13:49 2.1 13:53 2.3 13:57 2.4 14:01 2.5 14:05 2.7 14:09 2.9 14: 13 3.0 14:17 3.2 14:21 3.4 14:25 3. 7 14:29 4. 7 14:33 7.5 14:37 11.4 14:41 15.0 14:45 19.5 14:49 28.0 14:53 38.8 14:57 <::&::D. 15 : 01 43.2 15:05 31.6 15:09 19.1 15:13 12.7 15:17 9.4 15:21 7.4 15:25 6.2 15:29 5.6 15:33 5.2 15:37 4.9 15:41 4.6 15:45 4.3 15:49 4.1 15:53 3.7 15:57 3.5 16:01 Continued on next page Flow cfs 3.4 3.2 3.0 2.9 2.8 2.7 2.6 2.5 2.4 2.4 2.4 2.3 2.3 2.3 2.3 2.3 2.3 2.3 2.3 2.2 2.2 2. 1 2. 1 2. 1 2. 1 2. 1 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 1.9 1.9 1.8 1.8 1.8 1.6 1.3 1.3 1.2 1. 1 1.3 :ontinued from previous page 16:05 1.2 16:41 0.5 17: 17 0.5 17:53 0.2 16:09 1. 1 16:45 0.5 17:21 0.4 17:57 0.2 16:13 . 1.2 16:49 0.5 17:25 0.4 18:01 0.2 16: 17 1.1 16:53 0.5 17:29 0.4 18:05 0.2 16:21 0.7 16:57 0.5 17:33 0.3 18:09 0.2 16:25 0.5 17:01 0.5 17:37 0.3 18:13 0.2 16:29 0.5 17:05 0.5 17:41 0.2 18: 17 0.1 16:33 0.5 17:09 0.5 17:45 0.2 18:21 0.0 16:37 0.5 17: 13 0.5 17:49 0.2 18:25 0.0 Voll.Jlle of runoff = 2.91 ac. ft. Depth of runoff = 6.64 in. File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 11/13/95 Job 95-324 Misc. Note -CS FIRE STATION HYDROS 20 Type SCS Desc. EXISTING A+B 100 YR Area 5.3 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 3:49 3:53 3:57 4:01 4:05 4:09 4:13 4: 17 4:21 4:25 4:29 4:33 4:37 4:41 4:45 4:49 4:53 4:57 5:01 5:05 5:09 5: 13 5: 17 5:21 5:25 5:29 5:33 5:37 5:41 5:45 5:49 5:53 5:57 6:01 6:05 6:09 6: 13 6: 17 6:21 6:25 6:29 6:33 6:37 6:41 6:45 Flow cfs 0.0 0.0 0.0 0. 1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0. 1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Time hr:min 6:49 6:53 6:57 7:01 7:05 7:09 7: 13 7: 17 7:21 7:25 7:29 7:33 7:37 7:41 7:45 7:49 7:53 7:57 8:01 8:05 8:09 8: 13 8: 17 8:21 8:25 8:29 8:33 8:37 8:41 8:45 8:49 8:53 8:57 9:01 9:05 9:09 9:13 9:17 9:21 9:25 9:29 9:33 9:37 9:41 9:45 Flow cfs 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.7 0.7 0.7 0.7 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.9 1.0 1.0 1.0 1 . 1 1 . 1 1.1 1 . 1 1.1 1. 2 Time hr:min 9:49 9:53 9:57 10:01 10:05 10:09 10: 13 10: 17 10:21 10:25 10:29 10:33 10:37 10:41 10:45 10:49 10:53 10:57 11: 01 11: 05 11 :09 11: 13 11: 17 11:21 11 :25 11 :29 11 :33 11 :37 11 :41 11 :45 11:49 11 :53 11: 57 12:01 12:05 12:09 12: 13 12: 17 12:21 12:25 12:29 12:33 12:37 12:41 12:45 Freq. 100.0 yrs CN 80 Len 24 hrs Precip. 11.00 Flow cfs Time hr:min 1.2 12:49 1.2 12:53 1.3 12:57 1.3 13:01 1.3 13:05 1.3 13:09 1.4 13:13 1.4 13:17 1.5 13:21 1.6 13:25 1. 7 13 : 29 1.8 13:33 1.9 13:37 2.1 13:41 2.3 13:45 2.4 13:49 2.5 13:53 2. 7 13:57 2.8 14:01 2.9 14:05 3.1 14:09 3.3 14:13 3.5 14:17 3.8 14:21 4.1 14:25 4.4 14 :29 5.5 14:33 8. 7 14:37 13.3 14:41 17.4 14:45 22.6 14:49 32.3 14:53 44.5 14:57 ~ 15:01 49.5 15:05 36.3 15 :09 21.9 15:13 14.6 15:17 10.8 15:21 8.4 15:25 7.1 15:29 6.3 15:33 5.9 15:37 5.5 15:41 5.2 15:45 Continued on next page Flow cfs 4.9 4.7 4.3 4 .0 3.9 3.7 3.4 3.3 3.2 3.0 2.9 2.8 2.8 2.8 2.7 2.7 2.6 2.6 2.6 2.6 2.6 2.6 2.5 2.5 2.5 2.5 2.5 2.4 2.4 2.3 2.3 2.3 2.3 2.3 2.3 2.2 2.2 2.2 1.9 1.6 1.6 1.3 1.4 1.5 1.3 ontinued from previous page 15:49 1.4 16:21 0.6 16:53 0.6 17:25 0.2 15:53 1.5 16:25 0.6 16:57 0.6 17:29 0.3 15:57 1.3 16:29 0.6 17:01 0.6 17:33 0.3 16:01 1.3 16:33 0.6 17:05 0.5 17:37 0.2 16:05 1.5 16:37 0.6 17:09 0.4 17:41 0.3 16:09 1.0 16:41 0.6 17: 13 0.2 17:45 0.3 16: 13 0.7 16:45 0.6 17: 17 0.3 17:49 0.2 16: 17 0.6 16:49 0.6 17:21 0.3 17:53 0. 1 VolLme of runoff = 3.33 ac. ft. Depth of runoff = 7.60 in. Continued from previous page 15:48 0.7 16:24 0.6 17:00 0.5 17:36 0.2 15:52 0.7 16:28 0.6 17:04 0.5 17:40 0.2 15:56 0.7 16:32 0.6 17:08 0.5 17:44 0.3 16:00 0.7 16:36 0.6 17: 12 0.4 17:48 0.2 16:04 0.7 16:40 0.6 17: 16 0.3 17:52 0.2 16:08 0.6 16:44 0.6 17:20 0.3 17:56 0.1 16:12 0.6 16:48 0.6 17:24 0.2 18:00 0.0 16: 16 0.6 16:52 0.6 17:28 0.2 18:04 0.0 16:20 0.6 16:56 0.6 17:32 0.3 18:08 0.0 Volune of runoff = 1.84 ac. ft. Depth of runoff = 4.21 in. Appendix E Runoff Calculations (Hydrographs) A(EX)+B(DEV) - File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 11/13/95 Job 95-324 Misc. Note -CS FIRE STATION HYDROS 17 Type SCS Desc. A(EX)+B(DEV) 10 YR Area 5.3 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 3:00 3:04 3:08 3: 12 3:16 3:20 3:24 3:28 3:32 3:36 3:40 3:44 3:48 3:52 3:56 4:00 4:04 4:08 4:12 4: 16 4:20 4:24 4:28 4:32 4:36 4:40 4:44 4:48 4:52 4:56 5:00 5:04 5:08 5: 12 5: 16 5:20 5:24 5:28 5:32 5:36 5:40 5:44 5:48 5:52 5:56 Flow cfs 0.0 0.0 0.1 0.1 0. 1 0.1 0.1 0.1 0. 1 0.1 0. 1 0.1 0.1 0.1 0. 1 0.1 o. 1 0. 1 0. 1 0. 1 0.1 0.1 0.1 0.1 0. 1 0.1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0.1 0. 1 0.2 0.2 0.2 0.2 0.2 Time hr:min 6:00 6:04 6:08 6: 12 6: 16 6:20 6:24 6:28 6:32 6:36 6:40 6:44 6:48 6:52 6:56 7:00 7:04 7:08 7: 12 7: 16 7:20 7:24 7:28 7:32 7:36 7:40 7:44 7:48 7:52 7:56 8:00 8:04 8:08 8: 12 8: 16 8:20 8:24 8:28 8:32 8:36 8:40 8:44 8:48 8:52 8:56 Flow cfs 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 Time hr:min 9:00 9:04 9:08 9: 12 9: 16 9:20 9:24 9:28 9:32 9:36 9:40 9:44 9:48 9:52 9:56 10:00 10:04 10:08 10: 12 10: 16 10:20 10:24 10:28 10:32 10:36 10:40 10:44 10:48 10:52 10:56 11:00 11 :04 11:08 11: 12 11 :16 11 :20 11: 24 11 :28 11 :32 11 :36 11 :40 11 :44 11:48 11: 52 11: 56 Freq. 10.0 yrs CN 87 Len 24 hrs Precip. 7.40 Flow cfs 0.6 0.6 0.6 0.7 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.9 0.9 0.9 1.0 1.0 1.0 1.0 1.0 1.1 1.2 1.2 1.3 1.3 1. 5 1.6 1. 7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.8 3.0 3.4 5.4 8.6 11.3 14.5 20.6 28.6 Time hr:min 12:00 12:04 12:08 12: 12 12: 16 12:20 12:24 12:28 12:32 12:36 12:40 12:44 12 :4 8 12:52 12:56 13:00 13:04 13:08 13: 12 13: 16 13:20 13:24 13:28 13:32 13:36 13:40 13:44 13:48 13:52 13:56 14:00 14:04 14:08 14: 12 14: 16 14:20 14:24 14:28 14:32 14:36 14 :40 14:44 14:48 14:52 14:56 Continued on next page Flow cfs 34.6 27.5 17.3 10.6 7.8 6 . 1 5.0 4.4 4. 1 3.8 3.6 3.4 3.2 3.0 2.8 2.6 2.5 2.4 2.3 2.2 2.1 2.0 2.0 1.9 1.9 1.9 1.8 1. 7 1.6 1.4 1.4 1.5 1.4 1.4 1.4 1.2 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 :ontinued from previous page 15:00 0.9 15:36 0.9 16:12 0.8 16:48 0.4 15:04 0.9 15:40 0.9 16: 16 0.8 16:52 0.3 15:08 0.9 15:44 0.8 16:20 0.8 16:56 0.3 15: 12 0.9 15:48 0.8 16:24 0.7 17:00 0.4 15: 16 0.9 15:52 0.8 16:28 0.7 17:04 0.3 15:20 0.9 15:56 0.8 16:32 0.7 17:08 0.3 15:24 0.9 16:00 0.8 16:36 0.5 17: 12 0.3 15:28 0.9 16:04 0.8 16:40 0.3 17: 16 0. 1 15:32 0.9 16:08 0.8 16:44 0.4 17:20 0.0 VolLme of runoff = 2.25 ac. ft. Oepth of runoff = 5 .12 in. -------------------------------------------------------------------------------- File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Da te 11 /13/95 Job 95 -324 Misc. Note -CS FIRE STATION HYDROS 18 Type SCS Desc. A(EX)+B(DEV) 25 YR Area 5.3 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 2:21 2:25 2:29 2:33 2:37 2:41 2:45 2:49 2:53 2:57 3:01 3:05 3:09 3:13 3: 17 3:21 3:25 3:29 3:33 3:37 3:41 3:45 3:49 3:53 3:57 4:01 4:05 4:09 4:13 4: 17 4:21 4:25 4:29 4:33 4:37 4:41 4:45 4:49 4:53 4:57 5:01 5:05 5:09 5:13 5: 17 Flow cfs 0.0 0.0 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0. 1 0. 1 0. 1 0. 1 0 .1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0. 1 0.1 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Time hr:min 5:21 5:25 5:29 5:33 5:37 5:41 5:45 5:49 5:53 5:57 6:01 6:05 6:09 6:13 6: 17 6:21 6:25 6:29 6:33 6:37 6:41 6:45 6:49 6:53 6:57 7:01 7:05 7:09 7:13 7: 17 7:21 7:25 7:29 7:33 7:37 7:41 7:45 7:49 7:53 7:57 8:01 8:05 8:09 8: 13 8: 17 Flow cfs 0.3 0.3 0.3 0.3 0.3 0 .3 0.3 0.3 0.3 0.3 0.3 0.3 0 .3 0 .3 0 .4 0.4 0.5 0.5 0 .5 0 .5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.6 0.6 0.6 Time hr:min 8:21 8:25 8:29 8:33 8:37 8:41 8:45 8:49 8:53 8:57 9:01 9:05 9:09 9:13 9: 17 9:21 9:25 9:29 9:33 9:37 9:41 9:45 9:49 9:53 9:57 10:01 10:05 10:09 10: 13 10: 17 10:21 10:25 10:29 10:33 10 :37 10:41 10:45 10:49 10:53 10:57 11 :01 11 :OS 11 :09 11: 13 11 :17 Freq. 25.0 yrs CN 87 Len 24 hrs Precip. 8.80 Flow cfs 0.6 0.7 0.8 0.8 0.8 0.8 0.8 0.8 0 .8 0.8 0 .8 0 .8 0.9 0.9 1.0 1.0 1.0 1.0 1.0 1.0 1. 1 1. 1 1. 1 1.1 1.2 1.2 1.3 1.3 1.3 1.3 1.4 1.5 1.6 1.6 1.8 1.9 2.0 2.1 2.3 2.4 2.5 2.7 2.9 3.0 3. 1 Ti me hr:m i n 11 :21 11:25 11:29 11:33 11:37 11:41 11:45 11:49 11 :53 11 :57 12:01 12:05 12:09 12: 13 12 :17 12:21 12:25 12:29 12:33 12:37 12:41 12 :4 5 12:49 12:53 12:57 13:01 13:05 13:09 13 : 13 13 : 17 13:21 13:25 13:29 13:33 13:37 13:41 13:45 13:49 13:53 13:57 14:01 14:05 14:09 14: 13 14:17 Cont i nued on ne xt page Flow cfs 3.3 3.6 3.9 4.7 7.5 11.6 14.8 19. 1 40.7 30.3 18 .5 11 .8 8 .9 7 .0 5.8 5 .3 4.9 4.5 4.3 4. 1 3.8 3.5 3.3 3.1 2.9 2.7 2.6 2.5 2.4 2.4 2.3 2.2 1.8 1. 7 1 .9 1. 7 1 . 7 1.8 1.5 1.3 1.3 1.3 :ontinued from previous page 14:21 1.3 14:57 1.2 15:33 1. 1 16:09 0.7 14:25 1.3 15:01 1.2 15:37 1.0 16: 13 0.4 14:29 1.3 15:05 1. 1 15:41 1.0 16: 17 0.4 14:33 1.2 15:09 1. 1 15:45 1.0 16:21 0.5 14:37 1.2 15: 13 1. 1 15:49 1 .0 16:25 0.4 14:41 1.2 15: 17 1. 1 15:53 1. 0 16:29 0.4 14:45 1.2 15:21 1. 1 15:57 1 .0 16:33 0.5 14:49 1.2 15:25 1. 1 16:01 0.9 16:37 0.4 14:53 1.2 15:29 1.1 16:05 0.9 16:41 0 . 1 Vol1..111e of runoff = 2.72 ac. ft. Depth of runoff = 6.21 in. ------------------------------------------------------------------------------- File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 11/13/95 Job 95-324 Misc. Note -CS FIRE STATION HYDROS 19 Type SCS Desc. ACEX)+B(DEV) 50 YR Area 5.3 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 2:00 2:04 2:08 2:12 2: 16 2:20 2:24 2:28 2:32 2:36 2:40 2:44 2:48 2:52 2:56 3:00 3:04 3:08 3: 12 3: 16 3:20 3:24 3:28 3:32 3:36 3:40 3:44 3:48 3:52 3:56 4:00 4:04 4:08 4: 12 4:16 4:20 4:24 4:28 4:32 4:36 4:40 4:44 4:48 4:52 4:56 Flow cfs 0.0 0.0 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0.1 0. 1 0. 1 0. 1 0. 1 0. 1 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Time hr:min 5:00 5:04 5:08 5: 12 5:16 5:20 5:24 5:28 5:32 5:36 5:40 5:44 5:48 5:52 5:56 6:00 6:04 6:08 6:12 6:16 6:20 6:24 6:28 6:32 6:36 6:40 6:44 6:48 6:52 6:56 7:00 7:04 7:08 7: 12 7: 16 7:20 7:24 7:28 7:32 7:36 7:40 7:44 7:48 7:52 7:56 Flow cfs 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 Time hr:min 8:00 8:04 8:08 8: 12 8:16 8:20 8:24 8:28 8:32 8:36 8:40 8:44 8:48 8:52 8:56 9:00 9:04 9:08 9: 12 9:16 9:20 9:24 9:28 9:32 9:36 9:40 9:44 9:48 9:52 9:56 10:00 10:04 10:08 10: 12 10: 16 10:20 10:24 10:28 10:32 10:36 10:40 10:44 10:48 10:52 10:56 Freq. 50.0 yrs CN 87 Len 24 hrs Precip. 9.80 Flow cfs 0.6 0.6 0.7 0.7 0.8 0.8 0.8 0.9 0.9 1.0 1.0 1.0 1 . 0 1.0 1.0 1.0 1.0 1. 0 1.0 1. 1 1 . 1 1.1 1. 1 1.2 1.2 1.3 1 .3 1.3 1 .4 1 .4 1.4 1.4 1.4 1 .5 1.6 1 .6 1. 7 1 .8 1 .9 2.0 2.2 2.3 2.5 2.6 2.8 Time hr:min 11:00 11:04 11:08 11 : 12 11: 16 11 :20 11 :24 11 :28 11 :32 11 :36 11 :40 11 :44 11 :48 11 :52 11 :56 12:00 12:04 12:08 12:12 12: 16 12:20 12:24 12:28 12:32 12:36 12:40 12:44 12:48 12:52 12:56 13:00 13:04 13:08 13: 12 13: 16 13:20 13:24 13:28 13:32 13:36 13:40 13:44 13:48 13:52 13:56 Continued on next page Flow cfs 2.9 3.0 3.2 3.4 3.6 3.7 4.0 4.3 5.0 7.8 12.4 16. 1 20.5 29.0 37.0 23. 1 14. 1 10.5 8.2 6.6 5.9 5.5 5.1 4.8 4.6 4.3 4.0 3.7 3.5 3.3 3. 1 3.0 2 .9 2.9 2.8 2.7 2 .5 2. 1 2.0 2. 1 2. 1 1. 7 :ontinued from previous page 14:00 1.5 14:36 1.4 15:12 1.3 15:48 0.7 14:04 1.5 14:40 1.4 15:16 1.3 15:52 0.6 14:08 1.5 14:44 1.4 15:20 1.2 15:56 0.5 14: 12 1. 5 14:48 1.3 15:24 1.2 16:00 0.7 14: 16 1 .5 14:52 1.3 15:28 1.2 16:04 0.6 14:20 1.4 14:56 1.3 15:32 1.2 16:08 0.5 14:24 1.4 15:00 1.3 15:36 1.2 16: 12 0.6 14:28 1.4 15:04 1.3 15:40 1.0 16: 16 0.5 14:32 1.4 15:08 1.3 15:44 0.8 16:20 0.2 Voll.Ille of runoff = 3.06 ac. ft. Depth of runoff = 6.97 in. File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 11/13/95 Job 95·324 Misc. Note -cs FIRE STATION HYDROS 20 Type SCS Desc. A(EX)+B(DEV) 100 YR Area 5.3 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 1:45 1:49 1 :53 1:57 2:01 2:05 2:09 2: 13 2:17 2:21 2:25 2:29 2:33 2:37 2:41 2:45 2:49 2:53 2:57 3:01 3:05 3:09 3:13 3: 17 3:21 3:25 3:29 3:33 3:37 3:41 3:45 3:49 3:53 3:57 4:01 4:05 4:09 4:13 4: 17 4:21 4:25 4:29 4:33 4:37 4:41 Flow cfs 0.0 0.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0. 1 0. 1 0.1 0. 1 0. 1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0. 1 0.1 0. 1 0. 1 0.1 0.1 0.1 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Time hr:min 4:45 4:49 4:53 4:57 5:01 5:05 5:09 5: 13 5: 17 5:21 5:25 5:29 5:33 5:37 5:41 5:45 5:49 5:53 5:57 6:01 6:05 6:09 6:13 6:17 6:21 6:25 6:29 6:33 6:37 6:41 6:45 6:49 6:53 6:57 7:01 7:05 7:09 7:13 7: 17 7:21 7:25 7:29 7:33 7:37 7:41 Flow cfs 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.8 0.8 0.8 0.8 0.8 0.8 0.8 Time hr:min 7:45 7:49 7:53 7:57 8:01 8:05 8:09 8: 13 8:17 8:21 8:25 8:29 8:33 8:37 8:41 8:45 8:49 8:53 8:57 9:01 9:05 9:09 9: 13 9:17 9:21 9:25 9:29 9:33 9:37 9:41 9:45 9:49 9:53 9:57 10:01 10:05 10:09 10: 13 10:17 10:21 10:25 10:29 10:33 10:37 10:41 Freq. 100.0 yrs CN 87 Len 24 hrs Precip. 11.00 Flow cfs 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.9 0.9 1.0 1.0 1.1 1. 1 1. 1 1. 1 1. 1 1. 1 1.1 1.1 1.2 1.2 1.3 1.3 1.3 1.4 1.4 1.4 1.4 1.5 1.5 1.6 1.6 1.6 1.6 1.6 1. 7 1.8 1.8 1.9 2.0 2. 1 2.2 2.4 2.6 Time hr:min 10:45 10:49 10:53 10:57 11: 01 11 :05 11 :09 11: 13 11: 17 11: 21 11 :25 11 :29 11 :33 11 :37 11 :41 11 :45 11 :49 11:53 11:57 12:01 12:05 12:09 12: 13 12: 17 12:21 12:25 12:29 12:33 12:37 12:41 12:45 12:49 12:53 12:57 13:01 13:05 13:09 13: 13 13: 17 13:21 13:25 13:29 13:33 13:37 13:41 Continued on next page Flow cfs 2.8 2.9 3.0 3.2 3.4 3.5 3.8 4.0 4.1 4.4 4.7 5.0 6.2 9.8 14.9 19.3 24.7 34.7 ~ 2 . 38.6 23.3 15.4 11.3 8.8 7.4 6.6 6. 1 5.7 5.4 5. 1 4.8 4.3 3.8 3.6 3.5 3.3 3.2 3.1 2.9 2.7 2.3 2.3 2.4 Continued from previous page 13:45 2.2 14:25 1.6 15:05 1. 5 15:45 0.6 13:49 1.9 14:29 1.6 15:09 1.4 15:49 0.7 13:53 1. 7 14:33 1.6 15:13 1.4 15:53 0.8 13:57 1. 7 14:37 1.6 15: 17 1.4 15:57 0.6 14:01 1. 7 14:41 1.6 15:21 1.1 16:01 0.6 14:05 1. 7 14:45 1.5 15:25 0.9 16:05 0.8 14:09 1. 7 14:49 1.5 15:29 0.9 16:09 0.3 14:13 1. 7 14:53 1.5 15:33 0.6 16: 13 0.0 14: 17 1.6 14:57 1. 5 15:37 0.7 16: 17 0.0 14:21 1.6 15:01 1.5 15:41 0.8 16:21 0.0 Voll.Ille of runoff = 3.45 ac. ft. Depth of runoff = 7.87 in. Appendix F NPDES Permit Application Federal Register I Vol. 57."No.175 /Wedn esday , September o, 1992 /Notices 41341 APPENDIX 0-Notice of Termination and Instructions . form Approt.tld. om ... __ ,..... lee lnattuctlorw BefON CompleUng Thia Fonn ................. ft EPA ...... -......... -...... N'0£.8 Wlill•1Qb1, DC 20480 FORM ~, . Nata of TennlnaUon ~OT) of Coverage Under the NPOES ~~~ Permit tor Stonn Water . ··~ A110Clated with lndultrtal. ~of'* Nok9 olT•n•....,,~ nallce lllll t. ~ ldenmed In Sedlon I°''* larm la no~ ailt10ltz9d., ~ aam .-r ~ -.41t1.,...... dlfl¥ lrdlr .. NPDES pqnm. ALL NE ESSARY INFORIAATION MlJS1'. Be OED ON TlilS FOR • l Pwmll ........... NPOES 8IDr'ftl w.t I I CJ-* ....... I Youn No u..r D CJ-*..._ It. 8'orln W.W D °"*II Pwmll tunblr: I I I I I 1 · I I .. Opnaolt.~ Dllc:t*Vf la ~ T""*'-d: I.~~ ..... 111a1 • . I ' I Phcn : I I I I NlrN: I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I ~:I I I I . I I I I 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 LU ZJPCodl: I . I OI>': 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 Al. F8Cil!yfSlle Loc:alan •4clf11lllllan Nwrle : I I I I I I I I I I ' I I I I I I I I I I I I I I I I I I I ~:I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I : I I . I City: I I I I I I I I I I I I I I I I I I I I I I St*: _,_,_: Zlf>Code : i I I I ; I I I I I ~1 I I I Lcrigl\de: I I I 1 ~ LJ Sdoll: Ll i I I I I I I I I I I T~: I I~: I I I I I ~ IV. c.t6callon: I ::r.:;:-P8f*'1ofllwM11 aum ..... dlld•gea -c'8*1 IMlh ~ ldMt)' ~ t. lden&Hled ~ 1\111-ailhottZ9d by a N~ pan* bMrl ~or lllll 19" 111> ~ t. ~oft.~ or~ 1111. I under'*-ld hi by ~'* No4kl9 of T I 1m no~ &lllortz8d., clldwve 111:1rm .-.., taNd Miil ~ ~ undw '* oenni .J:::; Ind lll1 ~ n lt)tm,,.. ~,,,., ~ ~ 91:>....,. ol t. Unlled 6-II~ undw .. a-i Wflllllf /.D. t. ~II rot ~ NPOE S pennll. I -.0 ~ ...... ~ °' '* No4kl9 ol T•n•1111ot1 0:-rot,....., apef1ID ~ W.!y kit W'I ~of .. permit or c.iwaiwM. PrYrt Nirnt : I I I . : I I I I I I I I I I 0.: I I I ! I I I I ~: lnlWotonl llol' Completk ig Nob of Tee •llllofl (NOT)~ WM Mey Ale 1 No4loe ef T••.alon CN0T> ,_ ._ ..... NOT,_ ,..,._ wt'o n ,._.., DW'8d 11N1ir fll EPA..._. Nlllcnl Pa1Un Dllctwoe Elfn*lllan .,_ (NPOES) GMlrwl ....... lar 11:11111 w.w lend HI lami ID fll .. '*-"IJ ecllhu: 0tctwvee ~ wlrl......, AaMW 1111W lla.NlafdalflfT~ kwm W-Nalol If TlllM'ldon (IOT) bm wtllll hit ..... NI IDr'll" ,_ ..,, llllrftl -~ P.0 ... 1115 IMDd9d...,......, _... • delrwdn .. IDlll_. ,...._... _, ~VA'21 22 CFR 122.29 (bl(l4), orwtllll.., n no D-.ger .. ...-11 .. ....._ fO' CDntl'UCllan IQMlea. ~ " .. IDTn -tlectllrDM 11--.c! c.-.•llClll8 .. ,_ ..,~~----~--... ~ ...... ..., ...., ........ ....., erOllan ... eeclrlWll 11119'111-.... Tnieor...._~~--..nlw~--Drfr. ,._. '-~ l9f-.cl 11< .. lie,_.,.,.,• M IAl'CIP ... lml, II< h& II llllfm plel»-11 dw.w ......_, h m-1la. ~I-_, ID ... Wit*\ -eao..vee ..___,.._.....,.. ..... ""' .. ~ ...... 1w _.. .. a..-. llCM9d 1ar -111111m. u...., _..,-.ear.,,_. l't 8A'IDltr9d.., a NPOEI ..... ,_.. ._. ....... ..._, ~ .......... _.. lllA 11111 lar ~ llWU uneu.., n MeOld ID o.ty AW llltlllmllan _,.'* .. ~..,_..II .... '-~ )Qr,..,,... 'JQI ... .., .-aar. lbala HI IDrm, -.. klllft ..... ClllT'fllNd ........ uNlaml,.,..,..., ~ _.., • ..,.," 10%" ....... (7'03) IZ1-4123. "' -IDr w..-.o--• _ ,.._..., ,.,_ llNCll.-... ...,~.or.,......,....,,_......,,_,,.. (IUCtl • .. _.,.._ .......... ~ ... .....,~ f'UAR au~ or nes f'Oftl!I "°" l'VlmtVI INSTRUCTIONI Federal Register/ Vol. 57, No. 175 /Wednesday, September 9, 1992 /Notices 41339 APPENDIX C-Notice of Intent and Instructions a.. Aft•l'M for tnstNctlona Form Approyed. o.. ... __ .___:Ml ... ft EPA ...... ._ .......... -..... N'O£I w~oc 20460 FORM ~, Notice of Intent (NOi) torStorm Wmer Dlachargea Aaocllted wtth lndumrlal Activity Under the NPDES General Pennlt Submlllllon ol til Nolie. al.,,.,. ocnhMI naclcll llC .. s-1Y ldenllllld In Sec:llotl I ol til bm lmlndl m bl Uhorlmd by a NPDES permll llai.lld lor 1D!n -~ M" :•91d WISl lndullri.t ~In h SW loerlltl9d In Secllor'l 11 ol til lofTll . ~~ ot*g-. llUd'I dllctlq9r 11 ~ wt'1 .. 11nn1 CXll'ICllllanl ol .. pennlt. ALL N CESSARY INFORW.TIOH MUST BE PROVIDED OH FORM . I.~ 0perair ~1b111dao Hime: I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I Phone : I I I I I I I I I I I I I sin. ol D Md!.-: 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 ()wne(.()perD:lr : Clly : I I I I I I I I I I I I I I I I I I I I I l I Stale: L.&..J ZJP Code : I I I I I I . I I I I I II . Fdty!SIUI l.DCalion lnlomlatian . Hane : I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I Is h Fadll!y l..oc:nld en ~ l.wlds? (Y or N) D Addreu : I I I 1 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I City : I I I I I I I I I I I I I I I I I I I I I I I I sae : LL._j ZIP Code : I I I I I . I I I I I I Ul!llUOe : I I I I I I I ~:I I I I I I I I Ounlr: w Sedlon : w T~p : I I I I I Ranoe I I I I I Ill . 5118 ~ ntormatlon ~ Opernll Na'ne : 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 ReceMng Wlttf Body : I I I I I I I I I I I I I I I I I I I I I I I I I "Yw n Al"' • I Co-pelmhlee, en. Slgrm -GenerW Perrm ~: I I I I I I I I I I ,.,. 'Thef9 Ex•~ . D Oo.JS11113M1 Dala (Y or N) Is tie F~ Reqvnd t> Subtnlt Moniomg 1(I .2..ar3) D SIC or~ Pm\ary : I ~Coele : I I I I 2nd : I I I I I 3rd : I I I I I 41:11 : I I I I I H Thia F~il I Member ol 1 ~ ~ l9t Group AWbcabOl'I : I I I I I H Yw ... Olher Existing NPOES I I I I I I P.mw•. en.er P9rnvt Nl.wnbels : I I I I I I I I I I I I I I I I I I I I I I I I IV. AOdlb\al lntonnal!an Requred tor Colw tndon Actv!1Mll Oriy P!ojad ~ ~O..: 0.: II .. S1Dfm Wa'lltf Polo..clar\ PnlY•1tla11 Plan I I I I 1 I I I Edrrml8CI ArM m bl I I In ~ wllh 51* rd/or LOClll D I I I I I I °"""'*' (In Aaw): I I I I I ·~Sid Eralian "*-? (Y Cl N) V. Cet1ll'tcallan : I Clll1lty under per.ity ol llrw Ila! .. clacumlnt aid II llllachmel 111 -. pr"*9d under mt dinldlar'I or ~ In eaaatdlnc:e wllh a 'Y"l!m o.lgned t> --. Ila! QUlllfled ~ prape!ly IJlllt* aid ~ tie lnlorma!ion llbnlll8d. Billed en mt ~ ol h pnon or S*10fW ..tc llW'egB t:,Tcllm· Cl tlOl!I persor-. clirldly l9SpOtSlbil tor ~ lriormdon, h incrmdon IUbmlllld II, m h i.t mt ~ aid belef, tue, ICICl.nll . ~. I llTI...,. lllt l*9 .. lignlflca'll tar IUbmi!ling !Me ~lloln1do11, lnc:luding hi pogalbilltf ol h ~ lcr lwMirlg Ylalllllorll . . • . PMtNirne : Ollll: I I I I I I I I I I I I I I I I I I I I J I I I I I I I I I I I I I I I I I ~: EPA Form SSIC>-t (H2) Appendix G Development Permit Application Application Form Development Permit For Areas Outside Flood Hazard Areas City of College Station, Texas (re: Ordinance No. ) Site Legal Description: Lot 2, Blk 1, Holleman Place Subdivision S; te Address : Located in: Wolf Pen Creek Watershed ~~~~~~~~~~~~~-~~~------- Owner: City of College Station Arc~; tect/ Ehillips $wager Assoc. Engineer: Brban Design Group C 409-696-9653 ontractor: Address: 'P.O. Box 9960 Telephone No.: 764-3660 contact: Brett McCulley Address: 12404 Park Central Dr, Ste 240 Telepho ne No:: Dallas. 7525J-l819 (214-239-8827 Address: Telephone No.: Date Application Filed: ~av. 15, 95 Approve d: Application is hereby made for the following de velopment: ~~struction of proposed fire station # 3 and associated parking lot and improvements as shown on site plan Attached as part of this application: Application Fee x Drainage Plan with supporting docume ntation: two copies of each ----Other: ACKNOWLEDGEMENTS: I, --~~~~~---~- , as owner, hereby acknowledge or affirm that: The above Drainage Plan and supporting documents compli es with the requirements of Ordinance No. Owner Date ADPENPUM NO 2 DRA!NAGE REPORT FIRE STATION NO 1 TABLE OF CONTENTS I. CERTIFICATION II. INTRODUCTION II I. SCO PE IV. ASSUMPTIONS & CRITERIA V. RUNOFF COMPUTATIONS VI . EXISTING INFRASTRUCTURE (10 year analysis) VII. EXISTING INFRASTRUCTURE (100 year analysis) VIII . PROPOSED IMPROVEMENTS IX. CONCLUSION APPENDIX A APPENDIXB '. PIPE CAPACITIES DRAINAGE AREA MAP 2 ADDENPUM NO 2 DRA!NAGE REPORT FIRE STATION NO 1 I. Certification I hereby certify that this report for the drainage design of improvements for the College Station Fire Stati on, was prepared by me in accordance with the provisions of the City of College Station Drainage Policy and Design Standards in effect as directed by staff, for the proposed improvements shown , for the owners thereof. •. 3 ADDENPUM NO 2 DRAINAGE REPORT FIRE STATION NO II. Introduction This Addendum No . 2 explores and addresses the 'ho detention" optio n for the development and construction of proposed Fire Station No . 1. ID. Scope This report evaluates the impact of the release of increased flows, due to the development and construction of the proposed Fire Station No. 1, on the existing adjacent and downstream infrastructure . IV. Assumptions & Criteria For this report, existing City topographic maps were used to determine the upstream drainage areas for computation of flows onto Holleman Street. The Rational Formula was used to calculate the upstream flows . Table III-1 of the City 's Drainage Policy and Design Standards (DPDS) was used to determine the appropriate 'C" values . Runoff flows were calculated assuming existing development, with the addition of the proposed fire station improvements . Street and storm sewer slopes from as-built plans of Holleman Street (1985), were used in computations of the capacity of existing infrastructure. Results of the calculations for the pipe capacities are provided in the appendix . Manning's equation was used to compute the capacity of the street sections . Inlet capacities were calculated using Figure V-3 of the DPDS . V. Runoff Computations · AREAL Q10 =CIA = [(.90)(0 .7) + (0.4)(8 .04)] 8 .63 = 33 .19 cfs Q100 = [(.90)(0.7) + (0.4)(8 .04)] 12 .60 = 48.46 cfs 4 s = 2 .85% I10 = 8 .63 in/hr 110 = 12 .60 in/hr C 0.4 (natural grassland) C = 0 . 9 (pavement) ADDENDUM NO 2 -. AREAM Q10 = [(0 .19)(0.50)] 8 .63 = 0.82 cfs Q100 = [(0 .19)(0 .5) 12 .60 = 1.20 cfs AREAN Q10 = [(2 .78)(0.6) + (0 .17)(0 .9)] 8.63 = 15 .74 cfs Q100 = [(2 .78)(0 .6) + (0 .17)(0 .9)] 12 .60 = 22 .97 cfs AREAO Q10 = [(4 .73)(0 .6) + (0 .25)(0.9)] 8.63 = 26.46 cfs Q100 = [(4.73)(0.6) + (0 .25)(0 .9)] 12.60 = 38.63 cfs AREAP Q10 = [(3.51)(0.3) + (0 .23)(0 .9)] 8.63 = 10 .89 cfs Q100 = [(3 .51)(0 .3) + (0 .23)(0 .9)] 12 .60 = 15.89 cfs AREAQ Q10 = [(2 .89)(0 .25) +'(0.28)(0.9)] 8.63 = 8.41 cfs Q100 = [(2.89)(0 .25) + (0.28)(0 .9)] 12.60 = 12 .28 cfs 5 DRA!NAGE REPORT FIRE STATION NO I s = 1.8% I lo= 8.63 in/hr 1100 = 12 .60 in/hr C = 0 .5 (grass) C = 0 .9 (pavement) s = 4 .0% 110 = 8.63 in/hr 1100 = 12 .60 in/hr C = 0 . 9 (pavement) C = 0 .6 (grass) s = 4.0% 110 = 8.63 in/hr 1100 = 12.60 in/hr C = 0.6 (grass) C = 0 . 9 (pavement) s = 4 .0% 110 = 8.63 in/hr 1100 = 12.60 in/hr C = 0 .3 (natural grassland) C = 0 . 9 (pavement) s = 2 .0% 110 = 8.63 in/hr 1100 = 12 .60 in/hr C = 0.25 (natural grassland) C = 0. 9 (pavement) ADPENPUM NO 2 '· AREAR Q10 = [(0 .69)(0 .9) + (0.44)(0 .5)] 8.63 = 7.26 cfs Q 100 = [(0 .69)(0 .9) + (0.44)(0.5)] 12 .60 = 10 .60 cfs AREAS Q10 = [(0 .1753)(0 .9) + (0 .112)(0 .5)] 8.63 = 1.84 cfs Q100 = [(0 .1753)(0.9) + (0 .112)(0 .5)] 12 .60 = 2 .69 cfs AREAT Q10 = [(0 .2482)(0 .9) + (0 .1584)(0.5)] 8.63 = 2.61 cfs Q100 = [(0 .2482)(0 .9) + (0.1584)(0 .5)] 12.60 = 3 .81 cfs AREAU Q10 = [(0 .23)(0.9) + (0 .14)(0 .5)] 8.63 = 2 .39 cfs Q100 = [(0 .23)(0 .9) + (0 .14)(0 .5)] 12 .60 = 3.49 cfs AREAV Q10 = [(0 .28)(0 .9) + (0 .179)(0 .5)] 8 .63 = 2 .95 cfs Q100 = [(0 .28)(0 .9) + (0 .179)(0 .5)] 12 .60 = 4 .30 cfs 6 PRAINAGE REPQRT FIRE STATION NO 1 s = 1.83% 1 10 = 8.63 in/hr 1100 = 12 .60 in/hr C = 0 .5 (natu ra gras sl and ) C = 0.9 (pavemen t) s = 1.83% 1 10 = 8.63 in/hr 1 100 = 12 .60 in/yr C = 0 .5 (natural grassland) C = 0 . 9 (pavement) s = 1.44% 110 = 8.63 in/hr 1100 = 12 .63 in/hr C = 0 .5 (natural grassland) C = 0 .9 (pavement) s = 0 .63 % 110 = 8.63 in/hr 11 00 = 12 .6 0 in/hr C = 0 .5 (natural grassland) C = 0 . 9 (pavement) s = 0.75% 110 = 8.63 in/hr 1100 = 12 .60 "in/hr C = 0 .5 (natural grassland) C = 0 . 9 (pavement) ADDENDUM NO 2 DRAINAGE REPORT FIRE STATION NO I VI. Existing Infrastructure (10 year analysis) •. From the as-built plans, the first inlets on Holleman are located at the intersection of Texas & Holleman, but drain to the north into a storm sewer along Texas that does not receive any flows from the proposed fire station t ract. The first inlet receiving upstream flo w s (Inlet N o 1 . is a 15' inlet draining into a 24" RCP at a 1.687% slope. The capacity of this inlet is 8.25 cfs . The capacity of t he r eceiving 24" RCP is 31.86 cfs. The computed 100 year upstream runoff at this location (L + M) is 34 .01 cfs . 10 year upstream flow Inlet Capacity Bypass flow 34 .01 cfs <8 .25 cfs> 25 .76 cfs The capacity of the street to the top of curb, (south side only) at this location is 25 .58 cfs . The capacity to top of crown, (south side only), is 73 . 76 cfs . Q (t/curb) = 1.49/.012(0 .25)213 (.0183)112(3 .84) = 25.58 cfs Q (t/c rown ) = 1.49/.012(.363)213 (.0183)112(8 .63) = 73.76 cfs Qs1reet = 73 .76 cfs > 25 .76 cfs The next inlet (Inlet No . 2) is a 15' inlet located at the west property line of Lot 1 of the Fire Station tract(s), draining into a 30"RCP at a 2 .56% slope. An opposite 5' inlet (Inlet No. 3) and 18" RCP at 0.50% also flow into the downstream 30" RCP . The capacity of the 5' inlet is 2.75 cfs . The capacity of the 18% RCP at 0 .5% is 8.05 cfs. The capacity of the 15' inlet is 8.25 cfs . The capacity of the receiving 30"RCP at 2.56% is 7.17 cfs . The additional computed 100 year runoff at this location (Area N), is 15 .74 cfs . 100 year upstream flow Bypass flow from upstream Combined flow at this location Inlet Capacity Bypass Flow in Street 15 .74 cfs . 25 .76 cfs . 41.50 cfs. < 8.25 cfs> 33 .25 cfs . The capacity of the street to top of curb, (south side only), at this location is 25 .58 cfs . The capacity of the street to the top of crown, (south side only), is 73 .76 cfs . Q(t/curb) = 1.49/.012(.25)213 (.0183)112 (3 .84) = 25 .58 cfs Qstreet = 73 .76 > 33 .25 7 Q(t/crown)= 1.49/. 012(0 .363)213 (.0183)112(8 .63) = 73 .76 cfs ADDENDUM NO 2 DRA!NAGE REPORT FIRE STAIION NO 1 '· The next inlet (Inlet No . 4) is a 15' inlet midway into Lot 2 of the Fire Station tract(s) that drains into a 33" RCP at 1.19% slope. The capacity of this inlet is 8 .25 cfs . The capacity of the receiving 33 " RCP at 1.19% is 62 .50 cfs . The 100 year upstream flow a t this location (Area 0) is 26 .46 cfs . 100 y ear u p st ream fl ow Ups t r ~~m BypJl SS flow Total flow at this location Inlet Capacity Bypass Flow in Street 2 6 .4 6 cfs JJ .2~fa 59 .71 cfs < 8 .25 cfs> 51.46 cfs The capacity of the street to top of curb (south side only), at this location is 22 .71 cfs . The capacity of the street to top of crown (south side only), is 65.43 cfs . Q (t/curb) = l.49/.012(0 .25f3{.0144)112{3 .84) = 22 .71 cfs Q(t/crown) = 1.49/.012(.363)213 (.0144)112(8 .63) = 65.43 cfs Qsouth = 65.43 < 51.46 The next inlet is a 15' inlet (Inlet No . 5) that drains into a 36" RCP at 0 .69% slope. An opposite 15 ' inlet (Inlet No . 6) and 18" RCP at 1.00% also drain into the 36" RCP . The capacity of the 15' inlets (ea) is 8 .25 cfs . The capacity of the 18"RCP at 1.00% is 11.38 cfs. The capacity of the receiving 36" RCP at 0 .69% is 60.02 cfs . The 100 year upstream flow (Area P) is 10 .89 cfs . 10 year upstream flow Upstream Bypass Flow Total Flow at this location Inlet Capacity Bypass Flow in Street 10 .89 cfs 51.46 cfs 62 .35 cfs < 8 .25 cfs> 54 .10 cfs The capacity of the street to top of curb , (south side only), at this location is 15 .02 cfs. The capacity of the street to the top of crown, (south side only), is 43 .28 cfs . Q(t/curb) = 1.49/.012(.25)213 (.0093)1(2(3 .84) = 15 .02 cfs Qstreet = 43 .28 < 54 .10 8 Q (t/c rown) = 1.49/.012(.363)213(.0063)112(8 .63) = 43 .28 cfs ·ADDENDUM NO 2 DRAINAGE REPORT FIRE STATION NO I •. At this location, the south side of Holleman Street does not have the capacity to handle the 10 year upstream bypass flows . At this location, overflows from the south side will spillover the crown section into the north side of Holleman Street. Checking the flows on the north side, the flow at this location is 3 .10 cfs (R + S + T-2 .75 + U - 8 .25). QTotal = 2(43 .28) = 86 .56 CfS > Qmax = 54 .10 + 3 .10 = 57 .20 CfS Therefore, the north side of Holleman has sufficient capacity to hand le spillo ver from the southside. The next inlet (Inlet No . 7) is located just upstream of the Dartmouth/Holleman culvert . At this location, a 15' inlet (north side) drains directly into the swale, and a 15' inlet (Inlet No . 8),(south side), and 2-36" RCP at 0 .75% also drain into the swale . The capacity of the 15' inlets each are 8 .25 cfs . The capacity of the two 36" RCP is 125 .16 cfs . The 10 year upstream flow is 8.41 cfs . 10 year Upstream Flow Upstream Bypass Flow Combined Flow Inlet Capacity Street Flow 8.41 cfs 54 .10 cfs 62 .51 cfs < 8 .25 cfs > 54 .26 cfs The capacity of the street to top of curb, (south side only), at this location is 16 .39 cfs. The capacity of the street to top of crown, (south side only), is 47 .22 cfs . Q (t/c urb) = 1.49/.012(.25)213 (.0075)112 (3 .84) = 16 .39 cfs Qs1reet = 47 .22 < 108 .73 Q(t/crown) = 1.49/.012(.363)213 (.0075)112 (8 .63) = 47 .22 cfs As in the previous location, the capacity of Holleman Street at this location can not handle the upstream bypass flow, therefore, runoff will spillover the top of crown onto the north side of Holleman Street during the 100 year event. The flow on the north side of Holleman Street at this location is 0 .0 cfs (R + S - 2 .75 + T + U - 8 .25 + V -8 .25). The existing inlets are sized to han.dle the 10 year flow at this location. QTotal = 2(47 .22) = 94.44 ·cfs > Qmax = 54 .26 + 0 .0 = 54 .26 cfs 9 APDENPUM NO 2 DRAINAGE REPORT FIRE STATION NO 1 VII. Existing Infrastructure (100 year analysis) '. From the as-built plans, the first inlets on Holleman are located at the intersection of Texas & Holleman, but drain to the north into a storm sewer along Texas t hat does not receive any flo ws from the proposed fire station tract. The first inlet r eceiving upstream flo ws (Inlet No 1) is a 15' inlet draining into a 24"RCP at a 1.6 87% slope . The capacity of this inlet is 8.25 cfs. The capacity of t he r eceiving 24" RCP is 31.86 cfs . The computed 100 year upstream runoff at t his location (L + M) is 49 .7 cfs. 100 year upstream flow Inlet Capacity Bypass flow 49 .70 cfs <8.25 cfs> 41.50 cfs The capacity of the street to the top of curb , (south side only) at this location is 25 .58 cfs . The capacity to top of crown, (south side only), is 73 .76 cfs . Q(t/c urb) = 1.49/.012(0.25)213 (.0183)112 (3 .84) = 25 .58 cfs Q(t/c rown) = 1.49/.012(.363)213 (.0183)112 (8.63) = 73 .76 cfs Qs1reet = 73 .76 cfs > 41.5 cfs The next inlet (Inlet No . 2) is a 15 ' inlet located at the west property line of Lot 1 of the Fire Station tract(s), draining into a 30"RCP at a 2 .56% slope . An opposite 5 ' inlet (Inlet No . 3) and 18 " RCP at 0 .50% also flow into the downstream 30" RCP . The capacity of the 5 ' inlet is 2 .75 cfs . The capacity of the 18% RCP at 0 .5% is 8 .05 cfs . The capacity of the 15 ' inlet is 8 .25 cfs . The capacity of the receiving 30"RCP at 2.56% is 7 .17 cfs . The additional computed 100 year runoff at this location (Area N), is 22 .97 cfs . 100 year upstream flow Bypass flow from upstream Combined flow at this location Inlet Capacity Bypass Flow in Street 22 .97 cfs. 41.40 cfs . 64 .37 cfs . < 8 .25 cfs> 56 .12 cfs . The capacity of the street to top of curb , (south side only), at this location is 25 .58 cfs . The capacity of the street-to the top of crown, (south side only), is 73 . 76 cfs . Q(t/curb) = 1.49/.012(.25)213 (.0183)1 12(3 .84) = 25 .58 cfs Qstreet = 73 .76 > 56 .12 10 Q(t/cro wn)= 1.49/.012(0 .363)213 (.0183)112(8 .63) = 73 .76 cfs ADPENPUM NO 2 DRAINAGE REPORT FIRE STAIION NO I -. The next inlet (Inlet No . 4) is a 15' inlet midway into Lot 2 of the Fire Station tract(s) that drains into a 3 3" RCP at 1.19% slope . The capacity of this inlet is 8 .25 cfs . The capacity of the receiving 33 " RCP at 1.19% is 62.50 cfs . T he 100 year upstream flow at this location (Area 0) is 38 .63 cfs. 1 00 year u pstream flow UpstreaJ!l Bypass fl ow T otal flow at this location Inlet Capacity Bypass Flow in Street 3 8 .63 cfs 26 .12 cf~ 94 .75 cfs < 8 .25 cfs> 86 .50 cfs The capacity of the street to top of curb (south side only), at this location is 22 .71 cfs . The capacity of the street to top of crown (south side only), is 65.43 cfs . Q{t/cwb) = 1.49/.012(0 .25)213 (.0144)112 (3 .84) = 22 .71 cfs Q{t/crown) = 1.49/.012(.363)213(.0144)112 (8 .63) = 65.43 cfs Qsouth = 65.43 < 86 .50 At this point, the south side of Holleman does not have the capacity to handle all of the upstream bypass runoff, and flow begins to spill over the crown section onto the north side of Holleman (during the 100 year storm event). Checking the north side of Holleman Street, the upstream flow at this location is 14.38 cfs (R + S + T - 2 .75). QTotal = 2(65.43) = 130 .86 Cfs > Qmax = 86 .5 + 14 .38 = 100 .88 CfS Therefore, the north side of street has sufficient capacity to handle spillover from the southside, maintaining the 100 year flows within the right of way . The next inlet is a 15' inlet (Inlet No. 5) that drains into a 3 6" RCP at 0 . 69% slope . An opposite 15' inlet (Inlet No . 6) and 18" RCP at 1.00% also drain into the 36" RCP . The capacity of the 15' inlets (ea) is 8 .25 cfs . The capacity of the 18 "RCP at 1.00% is 11.38 cfs . The capacity of the receiving 36" RCP at 0 .69% is 60 .02 cfs . The 100 year upstream flow is 19 .38 cfs . 100 year upstream flow · Upstream Bypass Flow Total Flow at this location Inlet Capacity Bypass Flow in Street 15 .85 cfs 86 .50 cfs 102 .35 cfs < 8 .25 cfs> 94 .10 cfs 11 ADDENPUM NO 2 DRAINAG E REPORT FIRE STATION NO 1 '· The capacity of the street to top of curb , (south side only), at this location is 15 . 02 cfs . The capacity of the street to the top of crown, (south side only), is 43.28 cfs . Q (t/cw-1>) = 1.49/.012(.25)213(.0063)112 (3.8 4) = 15 .02 cfs Q street = 43 .28 < 94 .10 Q (t/crown) = 1.49/.0 l 2(.363}713{.0 063)112(8.63) = 43 .28 cfs As in the previous location, the south side of Holleman St reet does not have th e capacity to handle the 100 year upstream bypass flows . At this location, overflows from the south side will spillover the crown section into the north side of Holleman Street. Checking the flows on the north side, the flow at this location is 9 .62 cfs (R + S + T -2.7 5 + U - 8.25). Q Total = 2(43 .28) = 86 .56 CfS > Qmax = 94 .10 + 9.62 = 103 .72 CfS Therefore, the north side of Holleman does not have sufficient capacity to handle spillover from the southside. The next inlet (Inlet No. 7) is located just upstream of the Dartmouth/Holleman culvert . At this location, a 15 ' inlet (north side) drains directly into the swale, and a 15 ' inlet (Inlet No. 8),(south side), and 2-36" RCP at 0 .75% also drain into the swale . The capacity of the 15' inlets each are 8.25 cfs . The capacity of the two 36" RCP is 125 .16 cfs . The 100 year upstream flow is 23 .28 cfs . 100 year Upstream Flow Upstream Bypass Flow Combined Flow Inlet Capacity Street Flow 12 .28 cfs 94 .10 cfs 106.38 cfs < 8.25 cfs > 98 .13 cfs The capacity of the street to top of curb , (south side only), at this location is 16 .39 cfs . The capacity of the street to top of crown, (south side only), is 47.22 cfs. Q (t/cw-1>) = 1.49/.012(.25)213 (.0075)112 (3 .84) = 16 .39 cfs Q stre et = 47.22 < 98 .13 ' 12 Q (t/cro wn ) = 1.49/.012(.363)213 (.0075)112(8 .63) = 47 .22 cfs ADPENDUM NO 2 PRAINAGE REPORT FIRE STATION NO 1 -. As in the previous location, the capacity of Holleman Street at this location can not handle the upstream bypass flow, therefore, runoff will spillover the top of crown onto the north side of Holleman Street during the I 00 year event. The flow on the north side of Holleman Street at this location is 5.67 cfs (R + S - 2 . 75 + T + U -8.25 + V - 8 .25). QTotal = 2(47.22) = 94.44 cfs > Qmax = 109 .13 + 5.67 = 114 .80 cfs 13 ADDENPUM NO 2 DRAINAGE REPORT FIRE STATION NO 1 VIll. Proposed Improvements It appears after reviewing the system, the storm sewer is capable of handling larger storm flows , however, the inlet capacities restrict the storm sewer capacities to smaller storms . The ne xt analysis shows the effect of an additional 15' inlet placed on the south side of Holleman, at the northeast corner of the P hase I line . Inlet No . 1 100 yr upstream flow (L+M) Inlet capacity Bypass flow Inlet No. 2 100 yr upstream flow (N) Upstream bypass flow Combined Flow Inlet capacity Bypass flow Inlet No . 4 100 yr upstream flow (0) Upstream bypass flow Combined Flow Inlet capacity Bypass flow Inlet No . 5 100 yr upstream flow (P) Upstream bypass flow Combined Flow Inlet capacity Bypass flow •. Inlet No. 7 100 yr upstream flow (Q) Upstream bypass flow Combined Flow Inlet capacity Bypass flow 49 .66 cfs <8 .25 cfs> 41.41 cfs 22 .97 cfs 41.41 cfs> 64 .38 cfs <8 .25 cfs> 56 .13 cfs 38.63 cfs 56 .13 cfs> 94.76 cfs <8 .25 cfs> 86 .51 cfs 15.85 cfs 86 .51 cfs> 102 .36 cfs <8 .25 cfs> 94 .11 cfs 12 .28 cfs 94 .10 cfs> l06 .38 cfs <8 .24 cfs> 98 .13 cfs 14 34 .01 cfs <8 .25 cfs> 25 .76 cfs 15 .74 cfs 25.76 cfs 41.50 cfs <8 .25 cfs> 33 .25 cfs 26.46 cfs 33.25 cfs 59. 71 cfs <8.25 cfs> 51.46 cfs 10 .89 cfs 51.46 cfs 62 .35 cfs <8 .25 cfs> 54 .10 cfs 8.41 cfs 54 .10 cfs 62 .51 cfs <8.25 cfs> 54.26 cfs ADPENPUM NO . 2 DRAINAGE REPORT FIRE STATION NO 1 IX. Conclusion The proposed add it ional inlet will utilize existing capacity of the storm sewer not currently used . The total 100 year runoff up to Inlet No. 5 is 164 .32 cfs . The combined maximum capacity of the existing inlets is 44 .0 cfs . For co mparison, the total 10 year runoff up to Inlet No . 5 is 112 .56 cfs . The combi ned maximum capacity of the inlets remains 44 .0 cfs . The installation of the additional inlet reduces the depth of flow in the street for all storms, and at Inlet No . 5 flows directly into Wolf Pen Creek (primary system). The existing downstream infrastructure may have been built to the 1985 standards, however, reviewing previous ordinance indicate no specific design standards (depth of flow, design storm, spread of water, etc.,) were in place . The additional inlet will bring the existing infrastructure closer to compliance with the current standards, (i.e . reducing the spread of water during the 10 year design storm for the street, and 100 year design storm for the right of way), while facilitating the increased runoff from the fire station to the primary system . 15 Circular Channel Analysis & Design Solved with Manning's Equation Open Channel -Uniform flow ~orksheet Name: fire Conrnent: fire station # Solve For Full Flow Capacity Given Input Data: Diameter ..•••••••• Slope •••..•••••••• Manning's n ••••••• Discharge ••••••••• CC>fll>Uted Results: Full Flow Capacity •.••• Full Flow Depth •••••••• Velocity .•••••.••• Flow Area •.••••••• Critical Depth •••• Critical Slope •••• Percent Full •••.•• Full Capacity ••••• QMAX @.94D ••••.••• Froude Nl.lllber •.••• •. 2.00 ft 0.0169 ft/ft 0.012 31.86 cfs 31.86 cfs 2.00 ft 10.14fps 3. 14 sf 1.89 ft 0.0146 ft/ft 100.00 % 31.86 cfs 34.27 cfs FULL Open Channel Flow Module, Version 3.2 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * ~aterbury, Ct 06708 Circular Channel Analysis & Design Solved with Manning's Equation Open Channel -Uniform flow ~orksheet Name: fire Corrrnent: fire station # Solve For Full Flow Capacity Given Input Data: Diameter •••.•••••• Slope ••••••••••••. Manning's n ••••••• Discharge ••.•••••• Corrputed Results: Full Flow Capacity .•••. Full Flow Depth •••••••• Velocity •••••••••• •. Flow Area •••••••.• Critical Depth •••. Critical Slope •.•. Percent Full •••••. Full Capacity ••••• QMAX @.94D •••••••• Froude Nl.lllber •.••• 1.50 ft 0.0050 ft/ft 0.012 8.05 cfs 8.05 cfs 1.50 ft 4.55 fps 1. 77 sf 1. 10 ft 0.0064 ft/ft 100.00 % 8.05 cfs 8.66 cfs FULL Open Channel Flow Module, Version 3.2 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * ~aterbury, Ct 06708 Circular Channel Analysis & Design s_olved with Manning's Equation Open Channel -Uniform flow ~orksheet Name: fire Conment: fire station no. 1 no detention Solve For Full Flow Capacity Given Input Data: Diameter ......... . Slope ....•••.•.•.• Manning's n ...•.•. Discharge ••.•..•.. C~ted Results: Full Flow Capacity •.... Full Flow Depth •....... Velocity ......... . Flow Area .•..••... Critical Depth •••. Critical Slope •... Percent Full ..•..• Full Capacity ••..• QMAX @.940 .•••..•. Froude Nl.lllber .•... 2.50 ft 0.0256 ft/ft 0.012 71.10 cfs 71. 10 cfs 2.50 ft 14.48 fps 4.91 sf 2.44 ft 0.0228 ft/ft 100.00 % 71.10 cfs 76.48 cfs FULL Open Channel Flow Module, Version 3.2 Cc) 1990 Haestad Methods, Inc. * 37 Brookside Rd * ~aterbury, Ct 06708 Circular Channel Analysis & Design Solved with Manning's Equation Open Channel · Uniform flow Worksheet Name: fire Comment: fire station # Solve For Full Flow Capacity Given Input Data: Diameter ••••...••• Slope .••••••••..•• Manning's n •.••••• Discharge ••••••••• CO!ll>Uted Results: Full Flow Capacity ••••• Full Flow Depth •••••••• Velocity •••••••••• Flow Area •••••••.• Critical Depth •••• Critical Slope •••• Percent Full •••••• Full Capacity ••••. QMAX @.94D ..•.•.•• Froude Ni.rnber .•••• '. 2. 75 ft 0.0119 ft/ft 0.012 62.50 cfs 62.50 cfs 2. 75 ft 10.52 fps 5.94 sf 2.52 ft 0.0104 ft/ft 100.00 % 62.50 cfs 67.23 cfs FULL Open Channel Flow Module, Version 3.2 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 Circular Channel Analysis & Design S.olved with Manning's Equation Open Channel -Uniform flow Yorksheet Name: fire Conment: fire station # Solve For Full Flow Capacity Given Input Data: Diameter .•••...•.. Slope .....•....... Manning's n ...... . Discharge ........ . Computed Results: Full Flow Capacity .... . Full Flow Depth ....... . '· Velocity ......... . Flow Area ........ . Critical Depth •... Critical Slope .•.. Percent Full ..... . Full Capacity .... . QMAX @.94D ....... . Froude Number .... . 1.50 ft 0.0100 ft/ft 0.012 11.38 cfs 11.38 cfs 1.50 ft 6.44 fps 1. 77 sf 1.29 ft 0.0093 ft/ft 100.00 % 11.38 cfs 12.24 cfs FULL Open Channel Flow Module, Version 3.2 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Yaterbury, Ct 06708 Circular Channel Analysis & Design S.olved with Manning's Equation Open Channel -Uniform flow Worksheet Name: f i re Comment: fire station # Solve For Full Flow Capaci t y Given Input Data: Diameter ......... . Slope ............ . Mann i ng's n ....•.. Discharge ........ . COflllUted Results: Full Flow Capacity ..••. Full Flow Depth ....... . '· Velocity .•.....•.. Flow Area ........ . Critical Depth •... Critical Slope .... Percent Full ...•.. Full Capacity .... . QMAX @.94D ....... . Froude Nl.mber .... . 3.00 ft 0.0075 ft/ft 0.012 62.58 cfs 62.58 cfs 3.00 ft 8.85 fps 7.07 sf 2 .55 ft 0.0071 ft/ft 100.00 % 62.58 cfs 67.31 cfs FULL Open Channel Flow Module, Version 3 .2 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 COLLEGE STATION FIRE STATION DRAINAGE REPORT Prepared By: Urban Design Group P .O . Box 10153 College Station, Texas 77840 Prepared For : Phillips Swager Associates 12404 Park Central Drive Suite 240 Dallas , Texas 75251-1819 NOVEMBER 1995 TABLE OF CONTENTS I. II . III. IV. v. Certification General Location and Description Drainage Basins and Subasins Drainage Design Criteria Drainage Facility Design Figure 1 Figure 2 Figure 3 Appendix A Appendix B Appendix C Appendix D Appendix E Appendix F Appendix G Table 1. 95-324.doc Location Map Drainage Area Map FEMA Floodplain Map Runoff Calculations (Hydrographs) A(EX) Runoff Calculations (Hydrographs) B(EX) Runoff Calculations (Hydrographs) B(DEV) Runoff Calculations (Hydrographs) A(EX)+B(EX) Runoff Calculations (Hydro graphs) A(EX)+B(DEV) NPDES Permit Application Development Permit Application Computed Runoff!' Flows ( cfs) Page 2 Page 3 I. CERTIFICATION I hereby certify that this report for the drainage design of improvements for the College Station Fire Station, was prepared by me in accordance with the provisions of the City of College Station Drainage Poli cy and Design Standards, with the exception of the detention requirements, for the owners thereof. Registered Professional Engineer State of Texas No . 68243 95-324.doc Page 4 II. GENERAL LOCATION AND DESCRIPTION A. Location This project is located on the south side of Holleman Street between Texas Avenue and Dartmouth Street. The location map, Figure 1, shows the limits of the project. The project includes the development of the proposed fire station for the City of College Station . No public streets improvements are proposed with the site plan. However, public sewer is proposed. The property is currently platted as Lot 2, Holleman Place Subdivision . The primary drainage system is Wolf Pen Creek, tributary A. Surrounding developments include the GTE building (to the west), proposed Arbor Apartments (to the North), and a 6 .38 acre tract (to the east) which is currently undeveloped . The subject tract is bordered on the south by Richards Street. B. Descri1>tion of Pro1>erty The acreage of the site proposed for development is approximately 1.93 acres . The total area of lot 2 is 6.307 acres. The land cover is currently heavily wooded with oak, yaupon, and grass cover. No primary drainage way is near or adjacent to the project. The main channel of Wolf Pen Creek is the nearest primary drainage way. Runoff from the proposed development will be transported to the primary system via existing storm sewer (secondary drainage system) along the south side of Holleman Drive. The project consists of the construction of a 8657 sf public building, parking lot, drives , proposed detention area, and private water and sanitary sewer service lines . A portion of public sanitary sewer (south side of Holleman) is proposed for this site plan . III. DRAINAGE BASINS AND SUB-BASINS A. Primary Basin Descri1>tion As stated previously in this report, the primary drainage basin is the Wolf Pen Creek basin which is located within the Wolf Pen Creek Watershed . In accordance with the drainage ordinance, the minimum floor elevation requirements for this basin are standard (l ' above the calculated 100 year floodplain elevation). According to the FEMA FIRM Panel No . 48041C0144C dated July 1992 , no portion of the proposed building area or portion oflot 2 lies within the limits of the 100 year floodplain . (see Fig. 3) 95-324.doc Page 5 B. Secondary Drainage Basin Description The proposed development will utilize the existing storm sewer along Holleman Street as secondary pathways to the primary drainage system . No additional flows are proposed to enter Holleman street, as detention will be provided onsite either within the proposed parking lot or downstream adjacent to the site to restrict the runoff flows to their pre-developed rate . IV. Drainage Design Criteria A. Regulations To our knowledge, no deviations from the optional criteria listed in the Drainage Policy and Design Standards were used for any calculations within this study. B. Development Criteria Reference and Constraints For the site plan proposed , the detention requirements have been designed for the construction of the proposed fire station and associated improvements . Further development on lot 2 should meet additional detention\drainage requirements . However, no drainage improvements proposed with this site plan prohibit the development of the remaining portion of lot 2 . C. Hydrologic Criteria A 10 year design storm was used to size the inlets and storm sewer pipes . The Rational Method was used to calculate the runoff volumes . Runoff coefficients were determined using an average slope of 4%. Detention discharges and storage calculations are provided . The time of concentration values were calculated using velocities determined from Table III of the Drainage Policy and Design Standards. The following tables show the computed flows for each of the drainage areas before and after development. As shown in Figure 2 , area A is the drainage area upstream of the proposed development. Area B is the areas proposed for development. D. Hydraulic Criteria The proposed detention pond will be designed to accommodate the increased runoff from area B. Results of the hydraulic calculations for the routing of the hydrographs through the detention pond, storage calculations , discharges , and results of the routing of the hydrographs will be provided where parking lot configuration is finalized . 95-324.doc Page 6 TABLE 1. Computed Flows AREA SYR lOYR 25YR SOYR lOOYR A (existing) 18 .5 23.0 28 .0 31.9 36 .2 B (existing) ,e 8 .8 11.3 14 .3 16 .5 19.0 A(ex) +B (~J 25.4 31.8 38 .9 45 .3 41-,.9_ 5 S', 2. B (development 12 .3 14 .8 17 .7 19 .0 22.3 A (ex)+ B (dev) 28.4 34.7 42 .9 47.6 55..2 s~- V. DRAINAGE FACILITY DESIGN Upstream offsite flows are accounted for , however no ultimate development was assumed for any upstream areas . A. General Concept In designing the drainage facilities for this site, the deve lopment of the proposed fire station and associated improvements were considered . However, as of November 14 , 1995 the configuration of the parking lot had not been finali zed , therefore detention within the parking lot has not been analyzed . When the layout has been finalized , calculations will be submitted that show adequate storage volume exists within the proposed parking lot, or that a detention area is needed outside the current proposed buildable area. I 3> I ( ----- "'2 I / I 5: I .__ 2. I 31 12 ---) 9 y I ,~ -S" 1 ',; .....___ I I ..... ...... __./ I ,., i l ) C'.), ;; "-' --/ ~ , I I 11 ./ 95-324.doc '/y ]>- Figure 1 Location Map Figure 2 Drainage Area Map Figure 3 FEMA Floodplain Map POS? OAK UBSTAT/Q ~ ~" c•\uatetton\d gn csftre\csfspOl .dgn Nov. 15, l 2 • 1 S•59 --___ J POST OAK MALL \_ __ \ \ \ nse Vegetation / ___ --............ ---- Figure 2 ZONE X \ ZONE X City o Figure·3 ZON E X Refer to the Flood Insurance Rate Map Effective date shown on thi s map to determine when actuarial rates apply to structures in the zones where elevation s or depths have b een established . To dete,mine if flo od insurance is available in thi s communit y, contact your in surance agent or call the National Flood Insurance Program at (8001 638-6620. 500 APPROX IMATE '-(.\LE 0 -NATIONAL FLOOD INSURANCE PROGRAM Figure 3 ii I i II I I I Ii I FIRM FLOOD INSURANCE RATE MAP BRAZOS COUNTY, TEXAS AND INCORPORATED AREAS PANEL 144 OF 250 (SEE MAP INDEX FOR PANELS NOT PRINTED) CONTAINS : COMMUNITY BRYAN . CITY Of COLLE G ~ STAT ION . CITY C' NUMBER PAN EL SUFFIX 480082 0144 c 48008 3 01 41 Notice to User : The MA P NUMBER shown below should be used wh en placi 11g map ord ers : the COMMUNITY NUMBER shown above shoulrl be used on insurance appli cations for the subject community . MAP NUMBER 48041COl44 C EFFECTIVE DATE: JULY 2, 1992 Federal Emergency Management Agency Appendix A Runoff Calculations (Hydro graphs) A(EX) File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 10/30/95 Job 95·324 Misc. Note -CS FIRE STATION HYDROS 1 Type SCS Desc. EXISTING 5 YR AREA A Area 3.3 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 5:33 5:36 5:39 5:42 5:45 5:48 5:51 5:54 5:57 6:00 6:03 6:06 6:09 6:12 6: 15 6: 18 6:21 6:24 6:27 6:30 6:33 6:36 6:39 6:42 6:45 6:48 6 :51 6:54 6:57 7:00 7:03 7:06 7:09 7:12 7: 15 7:18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 7:42 7:45 Flow cfs o.o 0.0 0.0 0.0 0.0 o.o 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 .1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Time hr:min 7:48 7:51 7:54 7:57 8:00 8:03 8:06 8:09 8: 12 8: 15 8: 18 8:21 8:24 8:27 8:30 8:33 8:36 8:39 8:42 8:45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9: 12 9: 15 9: 18 9:21 9:24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9:51 9:54 9:57 10:00 Flow cfs 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 Time hr:min 10:03 10:06 10:09 10: 12 10: 15 10: 18 10:21 10:24 10:27 10:30 10:33 10 :36 10:39 10:42 10:45 10:48 10:51 10:54 10:57 11 :00 11 :03 11:06 11 :09 11: 12 11: 15 11: 18 11: 21 11 :24 11 :27 11 :30 11:33 11 :36 11 :39 11:42 11:45 11 :48 11: 51 11:54 11 :57 12:00 12:03 12:06 12:09 12: 12 12: 15 Freq . 5.0 yrs CN 84 Len 24 hrs Precip. 6.20 Flow cfs Time hr:min 0.4 12:18 0.4 12:21 0.4 12:24 0.4 12:27 0.4 12:30 0.4 12:33 0.4 12 :36 0.5 12:39 0.5 12:42 0.5 12:45 0.5 12:48 0.5 12:51 0.6 12 :54 0.6 12:57 0. 7 13:00 0 . 7 13 :03 0. 7 13 :06 0.8 13:09 0.8 13:12 0.8 13:15 0 .9 13:18 0.9 13:21 1.0 13 :24 1 .0 13:27 1 .0 13 :30 1.1 13:33 1.1 13 :36 1.2 13:39 1.3 13:42 1.4 13 :45 1.5 13 :48 2.2 13:51 3.7 13:54 4 .9 13:57 5.6 14:00 6.2 14:03 8 .4 14:06 12 .3 14:09 15.7 14:12 17.6 14:15 (@ 14:18 16.3 14: 21 11.3 14:24 7.2 14:27 5.2 14:30 Continued on next page Flow cfs 4 .2 3.5 2.9 2 .5 2.3 2.2 2.1 1.9 1.8 1.8 1. 7 1. 7 1.6 1. 5 1.4 . 1 .4 1.3 1.3 1.2 1.2 1 . 1 1. 1 1. 1 1 .0 1 .0 1.0 1.0 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0 .9 0.9 0.9 0.9 0.8 ontinued from previous page 14:33 0.8 15:27 0.7 16:21 0.6 17:15 0.1 14:36 0.8 15:30 0.7 16:24 0.6 17:18 0.5 14:39 0.8 15:33 0.7 16:27 0.6 17:21 0 .4 14:42 0.8 15:36 0.7 16:30 0.6 17:24 0.2 14:45 0.8 15:39 0.7 16:33 0.6 17:27 0.1 14:48 0.8 15:42 0 .7 16:36 0.6 17:30 0.5 14:51 0.8 15:45 0.7 16:39 0.6 17:33 0.3 14:54 0.8 15:48 0.7 16:42 0.6 17:36 0.2 14:57 0.8 15:51 0.7 16:45 0.6 17:39 0.1 15:00 0.8 15:54 0.7 16:48 0.6 17:42 0.5 15:03 0.8 15:57 0.7 16:51 0 .6 17:45 0.3 15:06 0.8 16:00 0.7 16:54 0.6 17:48 0.2 15:09 0.8 16:03 0.7 16:57 0.6 17:51 0.1 15: 12 0.8 16:06 0.7 17:00 0.6 17:54 0 .4 15:15 0.8 16:09 0.7 17:03 0.5 17:57 0.3 15: 18 0.8 16: 12 0.6 17 :06 0.5 18:00 0.2 15:21 0.7 16: 15 0.6 17 :09 0.5 15:24 0.7 16: 18 0.6 17: 12 0.5 Volume of runoff = 1.14ac. ft. Depth of runoff = 4.10 in. I .. ,., File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 10/30/95 Job 95-324 Misc. Note -CS FIRE STATION HYDROS 2 Type SCS Desc. EXISTING 10 YR AREA A Area 3.3 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 4:51 4:54 4:57 5:00 5:03 5:06 5:09 5: 12 5: 15 5: 18 5:21 5:24 5:27 5:30 5:33 5:36 5:39 5:42 5:45 5:48 5:51 5:54 5:57 6:00 6:03 6:06 6:09 6: 12 6: 15 6: 18 6:21 6:24 6:27 6:30 6:33 6:36 6:39 6:42 6:45 6:48 6:51 6:54 6:57 7:00 7:03 Flow cf s 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0 .1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0. 1 0.1 Time hr:min 7:06 7:09 7: 12 7: 15 7:18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 7:42 7:45 7:48 7:51 7:54 7:57 8:00 8:03 8:06 8:09 8: 12 8: 15 8: 18 8:21 8:24 8:27 8:30 8:33 8:36 8:39 8:42 8:45 8:48 8:51 8 :54 8:57 9:00 9:03 9:06 9:09 9:12 9: 15 9:18 Flow cfs 0.1 0.1 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0 .3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 Time hr:min 9:21 9:24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9:51 9:54 9:57 10:00 10:03 10:06 10:09 10:12 10: 15 10: 18 10:21 10:24 10:27 10:30 10:33 10:36 10:39 10:42 10:45 10:48 10:51 10:54 10:57 11:00 11:03 11:06 11:09 11: 12 11: 15 11: 18 11: 21 11:24 11:27 11 :30 11:33 Freq. 10.0 yrs CN 84 Len 24 hrs Precip. 7.40 Flow cfs 0 .4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0 .5 0.5 0.5 0.5 0 .6 0.6 0 .6 0.6 0.7 0.7 0.7 0.7 0.8 0.9 0.9 0.9 1.0 1.0 1.1 1. 1 1.1 1. 2 1.3 1.3 1.4 1.4 1. 5 1.6 1. 7 1.8 1.9 Time hr:min 11:36 11:39 11:42 11:45 11 :48 11 : 51 11:54 11 :57 12:00 12:03 12:06 12:09 12: 12 12:15 12: 18 12:21 12:24 12:27 12:30 12:33 12:36 12:39 12:42 12:45 12:48 12:51 12:54 12:57 13:00 13 :03 13 :06 13:09 13: 12 13: 15 13:18 13:21 13:24 13:27 13:30 13:33 13:36 13:39 13:42 13:45 13:48 Flow cfs 2.8 4.6 6.2 7.2 7.8 10.3 15.2 19.4 21.8 ~ 14.5 9.2 6.5 5.2 4.4 3.6 3.1 2 .8 2.7 2 .5 2.4 2.2 2.2 2.1 2.1 1.9 1.8 1. 7 1. 7 1.6 1. 5 1 . 5 1.4 1.4 1.4 1.3 1.3 1.2 1.2 1.2 1.2 1.1 1.1 1.1 Continued on next page ntinued from previous page 13:51 1.1 14:45 1.0 15:39 0.9 16:33 0.7 13:54 1.1 14:48 1.0 15:42 0.9 16:36 0.7 13:57 1.1 14:51 1.0 15:45 0.9 16:39 0.3 14:00 1.1 14:54 1.0 15:48 0.8 16:42 0.1 14:03 1.1 14:57 1.0 15:51 0.8 16:45 0.7 14:06 1.1 15:00 1.0 15:54 0.8 16:48 0.5 14:09 1. 1 15:03 1.0 15:57 0.8 16:51 0.3 14: 12 1.1 15:06 0.9 16:00 0.8 16:54 0. 1 14: 15 1.1 15:09 0.9 16:03 0.8 16:57 0.6 14: 18 1.1 15: 12 0.9 16:06 0.8 17:00 0.5 14:21 1.1 15:15 0.9 16:09 0.8 17:03 0.3 14:24 .1.0 15:18 0.9 16: 12 0.8 17:06 0.1 14:27 1.0 15:21 0.9 16: 15 0.8 17:09 0.6 14:30 1.0 15:24 0.9 16:18 0.8 17: 12 0.4 14:33 1.0 15:27 0.9 16:21 0.8 17: 15 0.3 14:36 1.0 15:30 0.9 16:24 0.8 17: 18 0.1 14:39 1.0 15:33 0.9 16:27 0.8 14:42 1.0 15:36 0.9 16:30 0.7 Voll.Ille of runoff = 1.40 ac. ft. Depth of runoff = 5.05 in. File Name -CS FIRE STATION HYDROS roj. Leader DEB Client PSA Date 10/30/95 Job 95-324 Misc. Note -CS FIRE STATION HYDROS 3 Type SCS Desc. EXISTING 25 YR AREA A rea 3.3 ac. Time of Concent. 10 min. Storm Dist Type I I Time hr:min 4:16 4:19 4:22 4:25 4:28 4:31 4:34 4:37 4:40 4:43 4:46 4:49 4:52 4:55 4:58 5:01 5:04 5:07 5: 10 5: 13 5: 16 5: 19 5:22 5:25 5:28 5:31 5:34 5:37 5:40 5:43 5:46 5:49 5:52 5:55 5:58 6:01 6:04 6:07 6:10 6:13 6:16 6:19 6:22 6:25 6:28 Flow cfs 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.2 0.2 0.2 0.2 0.2 0.2 Time hr:min 6:31 6:34 6:37 6:40 6:43 6:46 6:49 6:52 6:55 6:58 7:01 7:04 7:07 7: 10 7: 13 7: 16 7:19 7:22 7:25 7:28 7:31 7:34 7:37 7:40 7:43 7:46 7:49 7:52 7:55 7:58 8:01 8:04 8:07 8: 10 8:13 8:16 8:19 8:22 8:25 8:28 8:31 8:34 8:37 8:40 8:43 Flow cfs 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Time hr:min 8:46 8:49 8:52 8:55 8:58 9:01 9:04 9:07 9:10 9:13 9: 16 9: 19 9:22 9:25 9:28 9:31 9:34 9:37 9:40 9:43 9:46 9:49 9:52 9:55 9:58 10:01 10:04 10:07 10:10 10: 13 10: 16 10: 19 10:22 10:25 10:28 10:31 10:34 10:37 10:40 10:43 10:46 10:49 10:52 10:55 10:58 Freq. 25.0 yrs CN 84 Len 24 hrs Precip. 8.80 Flow cfs 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.7 0.7 0.7 0.7 0.7 0.7 0.8 0.8 0.8 0.9 0.9 0.9 1.0 1.1 1.1 1.2 1.2 1.3 1.4 1.4 Time hr:min 11: 01 11:04 11:07 11: 10 11: 13 11: 16 11:19 11:22 11 :25 11:28 11 :31 11:34 11 :37 11:40 11 :43 11 :46 11 :49 11 :52 11 :55 11:58 12:01 12:04 12:07 12: 10 12: 13 12: 16 12: 19 12:22 12:25 12:28 12:31 12:34 12:37 12:40 12:43 12:46 12:49 12:52 12:55 12:58 13:01 13:04 13:07 13: 10 13: 13 Continued on next page Flow cfs 1 .5 1.5 1.6 1. 7 1. 7 1.8 1.8 1.9 2.1 2.2 2.3 2.5 3.8 6.2 8. 1 9.1 10.0 13.6 19.7 24.5 27.2 ~ 24.3 16.6 10.6 7.7 6.2 5.2 4.3 3.7 3.4 3.2 3.1 2.9 2.7 2.6 2.6 2.5 2.3 2. 1 2.1 2.0 2.0 1.8 1.8 ontinued from previous page 13:16 1. 7 14: 10 1.3 15:04 1.2 15:58 1.0 13:19 1. 7 14: 13 1.3 15:07 1.2 16:01 1.0 13:22 1.6 14: 16 1.3 15: 10 1.1 16:04 1.0 13:25 1.6 14:19 1.3 15: 13 1.1 16:07 0.9 13:28 1.5 14:22 1.3 15: 16 1.1 16:10 0.6 13:31 1.5 14:25 1.3 15: 19 1.1 16: 13 0.4 13:34 1.5 14:28 1.3 15:22 1.1 16: 16 0.1 13:37 1.4 14:31 1.3 15:25 1.1 16: 19 0.9 13:40 1.4 14:34 1.3 15:28 1.1 16:22 0.6 13:43 1.4 14:37 1.2 15:31 1.1 16:25 0.4 13:46 1.4 14:40 1. 2 15:34 1.1 16:28 0.1 13:49 1.4 14:43 1.2 15:37 1. 1 16:31 0.9 13:52 1.4 14:46 1.2 15:40 1. 1 16:34 0.6 13:55 1.4 14:49 1.2 15:43 1.0 16:37 0.4 13:58 1.4 14:52 1.2 15:46 1.0 16:40 0.1 14:01 1.4 14:55 1.2 15:49 1.0 16:43 0.8 14:04 1.3 14:58 1.2 15:52 1.0 14:07 1.3 15:01 1.2 15:55 1.0 Vollllle of runoff = 1. 71 ac. ft. Depth of runoff = 6.16 in. File Name -CS FIRE STATION HYDROS roj. Leader DEB Client PSA Date 10/30/95 Job 95-324 Misc. Note -CS FIRE STATION HYDROS 4 Type SCS Desc. EXISTING 50 YR AREA A rea 3.3 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 3:57 4:00 4:03 4:06 4:09 4:12 4: 15 4: 18 4:21 4:24 4:27 4:30 4:33 4:36 4:39 4:42 4:45 4:48 4:51 4:54 4 :57 5:00 5:03 5:06 5:09 5: 12 5: 15 5: 18 5:21 5:24 5:27 5:30 5:33 5:36 5:39 5:42 5:45 5:48 5:51 5:54 5:57 6:00 6:03 6:06 6:09 Flow cfs 0 .0 o.o 0 .0 0.0 0 .0 0.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0 .1 0 .1 0.1 0.1 0 .1 0.1 0.1 0 .1 0.1 0.1 0.1 0 .1 0.1 0.1 0. 1 0.1 0.1 0 .1 0 .1 0.1 0.1 0.1 0.1 0 .1 0.1 0.2 0.2 0 .2 0.2 0.2 0 .2 0.2 Time hr:min 6: 12 6 : 15 6: 18 6:21 6:24 6:27 6:30 6:33 6:36 6:39 6:42 6:45 6:48 6:51 6:54 6:57 7:00 7:03 7:06 7:09 7: 12 7: 15 7 : 18 7:21 7:24 7:27 7:30 7 :33 7:36 7:39 7:42 7:45 7:48 7:51 7:54 7 :57 8:00 8:03 8:06 8:09 8 :12 8: 15 8:18 8:21 8:24 Flow cfs 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0 .2 0.3 0.3 0 .3 0.3 0.3 0.3 0 .3 0 .3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0 .3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0 .3 0 .4 0 .4 0.4 0.4 0.4 0.4 Time hr:min 8:27 8:30 8:33 8:36 8:39 8:42 8:45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9: 12 9: 15 9: 18 9:21 9:24 9:27 9:30 9 :33 9:36 9:39 9:42 9:45 9:48 9 :51 9:54 9:57 10:00 10:03 10:06 10:09 10: 12 10: 15 10: 18 10:21 10:24 10:27 10:30 10:33 10:36 10:39 Freq. 50.0 yrs CN 84 Len 24 hrs Precip. 9.80 Flow cfs 0.5 0 .5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0 .5 0.5 0 .5 0.5 0.5 0.6 0.6 0.6 0 .6 0 .6 0.6 0.6 0.6 0 .7 0.7 0.7 0 .7 0.7 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.9 0.9 0.9 0.9 1.0 1.0 1. 1 1. 1 1. 1 1.2 Time hr:min 10:42 10:45 10:48 10:51 10:54 10:57 11 :00 11 :03 11:06 11:09 11: 12 11: 15 11 : 18 11 :21 11:24 11:27 11:30 11 :33 11 :36 11 :39 11 :42 11 :45 11 :48 11 :51 11 :54 11 :57 12:00 12 :03 12:06 12:09 12: 12 12: 15 12: 18 12:21 12:24 12:27 12:30 12:33 12:36 12 :39 12:42 12:45 12:48 12:51 12:54 Continued on next page Flow cfs 1.3 1.4 1.4 1.5 1.6 1. 7 1. 7 1. 7 1.8 1.9 2.0 2 .1 2 .1 2.2 2.4 2 .5 2.6 2.8 3.9 6.6 9.0 10 .3 11.2 14.3 21 .0 27 .0 30.3 ~ 28 .9 20 .6 13 . 1 9. 1 7.2 6.1 5.0 4 .2 3 .8 3 .6 3.5 3 .3 3 . 1 3 .0 2.9 2 .8 2.6 I I ontinued from previous page 12:57 2.4 13:51 1.6 14:45 1.4 15:39 1.2 13:00 2.3 13:54 1.5 14:48 1.4 15:42 1.2 13:03 2.3 13:57 1.5 14:51 1.4 15:45 0.2 13:06 2.2 14:00 1.5 14:54 1.3 15:48 1. 1 13:09 2.1 14:03 1.5 14:57 1.3 15:51 0.8 13: 12 2.0 14:06 1.5 15:00 1.3 15:54 0 .5 13: 15 1.9 14:09 1.5 15:03 1.3 15 :57 0.2 13: 18 1.9 14: 12 1.5 15:06 1.3 16:00 1. 1 13:21 1.9 14: 15 1. 5 15:09 1.3 16:03 0 .8 13:24 1.8 14: 18 1 . 5 15: 12 1.3 16:06 0.5 13:27 1.7 14:21 1.5 15: 15 1.3 16 :09 0.2 13:30 1.7 14:24 1.4 15: 18 1.3 16:12 1.0 13:33 1. 7 14:27 1.4 15:21 1.3 16: 15 0.7 13:36 1.6 14:30 1.4 15:24 1.2 16: 18 0.4 13:39 1.6 14:33 1.4 15:27 1.2 16:21 0 .1 13:42 1.6 14:36 1.4 15:30 1.2 16:24 1.0 13:45 1.6 14 :39 1.4 15:33 1.2 13:48 1.6 14 :42 1.4 15:36 1.2 Volume of runoff = 1 .93 ac. ft. Depth of runoff = 6.95 in. File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 10/30/95 Job 95 -324 Misc. Note -CS FIRE STATION HYDROS 5 Type SCS Desc. EXISTING . 100 YR AREA A Area 3.3 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 3:45 3:48 3:51 3:54 3:57 4:00 4:03 4:06 4:09 4: 12 4: 15 4: 18 4:21 4:24 4:27 4:30 4:33 4:36 4:39 4:42 4:45 4:48 4:51 4:54 4:57 5:00 5:03 5:06 5:09 5: 12 5: 15 5:18 5:21 5:24 5:27 5:30 5 :33 5:36 5:39 5:42 5:45 5:48 5:51 5:54 5:57 Flow cfs 0.0 0.0 0.0 0.0 0.1 0.1 0.1 0. 1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 o. 1 0. 1 0.1 0. 1 0.1 0.1 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Time hr:min 6:00 6:03 6:06 6:09 6: 12 6: 15 6:18 6:21 6:24 6:27 6:30 6:33 6:36 6:39 6:42 6:45 6:48 6:51 6:54 6:57 7:00 7:03 7:06 7 :09 7: 12 7: 15 7:18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 7:42 7:45 7:48 7:51 7:54 7:57 8:00 8 :03 8:06 8:09 8: 12 Flow cfs 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0 .3 0.3 0 .3 0.3 0 .3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0 .4 0.4 0.4 0.4 0 .4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 Time hr:min 8:15 8:18 8:21 8:24 8:27 8:30 8:33 8:36 8:39 8:42 8:45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9: 12 9: 15 9:18 9 :21 9:24 9:27 9 :30 9:33 9:36 9:39 9:42 9:45 9 :48 9 :51 9:54 9:57 10:00 10:03 10:06 10:09 10: 12 10:15 10:18 10:21 10:24 10:27 Freq. 100.0 yrs CN 84 Len 24 hrs Precip. 11.00 Flow cfs 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0 .6 0.6 0.7 0.7 0.7 0 .7 0 .8 0 .8 0.8 0.8 0.8 0.8 0.8 0.8 0 .9 0.9 0.9 0 .9 0 .9 0 .9 0.9 0.9 0.9 1.0 1.0 1. 0 1.1 1.1 1.2 1.2 Time hr:min 10:30 10:33 10:36 10:39 10:42 10:45 10:48 10:51 10:54 10:57 11 :00 11 :03 11:06 11 :09 11: 12 11: 15 11 : 18 11:21 11:24 11:27 11 :30 11 :33 11 :36 11 :39 11 :42 11 :45 11:48 11 : 51 11 :5 4 11 :57 12 :00 12:03 12:06 12:09 12: 12 12: 15 12: 18 12:21 12:24 12 :27 12:30 12:33 12:36 12:39 12:42 Continued on next page Flow cfs 1.3 1.3 1.3 1.5 1.6 1.6 1. 7 1. 7 1.8 1.9 2 .0 2.0 2. 1 2.2 2 .3 2.4 2.5 2.6 2 .8 2.9 3 .1 3.2 4 .3 7 .3 10.2 11.8 12 .8 15 .9 23.3 30 .3 34.3 ~ 33.7 24.4 15.5 10.7 8 .4 7.0 5.8 4.9 4 .4 4.1 4.0 3.7 3.5 I I I •I • ,'- ontinued from previous page 12:45 3.4 13:39 1.8 14:33 1.6 15:27 1.3 12:48 3.3 13:42 1.8 14:36 1.6 15:30 1.0 12:51 3.2 13:45 1.8 14:39 1.6 15:33 0.6 12:54 3.0 13:48 1.8 14:42 1.6 15 :36 0.2 12:57 2.8 13:51 1.8 14:45 1.6 15:39 1.3 13:00 2.7 13:54 1.8 14:48 1.5 15:42 0.9 13:03 2.6 13:57 1. 7 14:51 1. 5 15:45 0 .6 13:06 2.5 14:00 1. 7 14:54 1.5 15:48 0.2 13:09 2.4 14:03 1.7 14:57 1.5 15:51 1.3 13: 12 2.3 14:06 1.7 15:00 1.5 15:54 0.9 13: 15 2.2 14:09 1. 7 15:03 1.5 15:57 0.5 13:18 2.2 14 :12 1. 7 15:06 1.5 16:00 0.2 13:21 2.1 14: 15 1.7 15:09 1. 5 16:03 1.2 13:24 2.0 14: 18 1. 7 15: 12 1.5 16:06 0.9 13:27 1.9 14:21 1.6 15:15 1.4 16:09 0.5 13:30 1.9 14:24 1.6 15: 18 1.4 16: 12 0.1 13:33 1.9 14 :27 1.6 15:21 1.4 13:36 1.8 14:30 1.6 15:24 0 .3 Volume of runoff = 2.19 ac. ft. Depth of runoff = 7.91 in. --'--....,..-----.-·-. I Appendix B Runoff Calculations (Hydro graphs) B(EX) File Name · CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 10/30/95 Job 95-324 Misc. Note -CS FIRE STATION HYDROS 6 Type SCS Desc. EXISTING AREA B 5 YR Area 1.9 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 8:00 8:03 8:06 8:09 8: 12 8: 15 8:18 8:21 8:24 8:27 8:30 8:33 8:36 8:39 8:42 8:45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9:12 9: 15 9: 18 9:21 9:24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9:51 9:54 9:57 10:00 10:03 10:06 10:09 10: 12 Flow cfs 0.0 o.o 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 .1 0.1 0. 1 0. 1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Time hr:min 10: 15 10: 18 10:21 10:24 10:27 10:30 10:33 10:36 10:39 10:42 10:45 10:48 10:51 10:54 10:57 11:00 11:03 11:06 11:09 11:12 11:15 11:18 11: 21 11:24 11:27 11 :30 11:33 11 :36 11:39 11:42 11:45 11:48 11: 51 11:54 11 :57 12:00 12:03 12:06 12:09 12:12 12: 15 12: 18 12:21 12:24 12:27 Flow cfs Time hr:min 0.1 12:30 0.1 12:33 0.1 12:36 0.1 12:39 0.1 12:4'2 0.1 12:45 0.2 12:48 0.2 12:51 0.2 12:54 0.2 12:57 0.2 13:00 0.2 13:03 0.2 13:06 0.2 13:09 0.3 13:12 0.3 13:15 0.3 13:18 0.3 13:21 0.3 13:24 0.3 13:27 0.4 13:30 0.4 13:33 0.4 13:36 0.4 13:39 0.5 13:42 0.5 13:45 0.5 13:48 0.8 13:51 1.4 13:54 1.9 13:57 2.3 14:00 2.5 14:03 3.5 14:06 5.4 14:09 7.0 14:12 8.1 14:15 (]]) 14:18 7.9 14:21 5.5 14:24 3.5 14:27 2.6 14:30 2.1 14:33 1.8 14:36 1.5 14:39 1.2 14:42 Freq. 5.0 yrs CN 75 Len 24 hrs Precip. 6.20 Flow cfs 1. 1 1. 1 1.0 1.0 0.9 0.9 0.9 0.9 0.8 0.7 0.7 0.7 0.7 0.6 0.6 0.6 0.6 0.6 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Time hr:min 14:45 14:48 14:51 14:54 14:57 15:00 15:03 15:06 15:09 15: 12 15:15 15:18 15:21 15:24 15:27 15:30 15:33 15:36 15:39 15:42 15:45 15:48 15:51 15:54 15:57 16:00 16:03 16:06 16:09 16: 12 16: 15 16:18 16:21 16:24 16:27 16:30 16:33 16:36 16:39 16:42 16:45 16:48 16:51 16:54 16:57 Continued on next page Flow cfs 0.4 0.4 0 .4 0.4 0.4 0.4 0.4 0.4 0 .4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 File Name · CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 10/30/95 Job 95-324 Misc. Note · CS FIRE STATION HYDROS 9 Type SCS Desc. EXISTING AREA B 50 YR Area 1.9 ac. Time of Concent. 10 min. Storm Dist Type I I Time hr:min 5:57 6 :00 6:03 6 :06 6:09 6 : 12 6: 15 6:18 6:21 6:24 6:27 6:30 6:33 6:36 6:39 6:42 6:45 6:48 6:51 6:54 6:57 7 :00 7:03 7:06 7 :09 7: 12 7: 15 7:18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 7:42 7:45 7:48 7:51 7:54 7:57 8:00 8:03 8:06 8:09 Flow cfs 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 .0 0.0 0.0 0.0 0.0 0.0 0 .0 0.0 0.0 0.0 0.1 0.1 0.1 0.1 0.1 0 .1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Time hr:min 8: 12 8: 15 8:18 8:21 8:24 8:27 8:30 8:33 8:36 8:39 8:42 8:45 8:48 8:51 8 :54 8:57 9:00 9:03 9:06 9:09 9:12 9:15 9: 18 9:21 9:24 9:27 9:30 9:33 9:36 9:39 9 :42 9:45 9:48 9:51 9:54 9:57 10:00 10:03 10:06 10:09 10: 12 10: 15 10: 18 10 :21 10 :24 Flow cfs 0.1 0.1 0.1 0. 1 0. 1 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0 .2 0.2 0.2 0.2 0.2 0 .2 0.2 0.2 0.2 0.2 0.2 0.2 0 .2 0.2 0.2 0.3 0.3 0 .3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0 .3 0.3 0.3 0.3 0.4 0.4 Time hr:min 10:27 10:30 10:33 10:36 10:39 10:42 10:45 10:48 10:51 10:54 10:57 11: 00 11 :03 11 :06 11 :09 11: 12 11 : 15 11:18 11 :21 11 :24 11:27 11:30 11:33 11 :36 11 :39 11:42 11:45 11 :48 11 : 51 11:54 11:57 12:00 12:03 12:06 12:09 12:12 12: 15 12: 18 12:21 12:24 12 :27 12:30 12:33 12:36 12:39 Freq. 50.0 yrs CN 75 Len 24 hrs Precip. 9.80 Flow cfs 0.4 0.4 0 .4 0 .5 0.5 0.5 0.6 0.6 0 .6 0.6 0.7 0 .7 0.7 0.8 0.8 0.9 0.9 0 .9 1.0 1.0 1. 1 1.2 1.2 1.8 3.0 4.2 4 .8 5.3 6.9 10.4 13.5 15.5 ~ 15.1 10 .8 6.9 4.8 3 .8 3.2 2.7 2.3 2.1 2 .0 1.9 1.8 Time hr:min 12:42 12:45 12:48 12:51 12:54 12:57 13:00 13:03 13:06 13:09 13: 12 13 : 15 13:18 13:21 13:24 13:27 13 :30 13 :33 13:36 13:39 13:42 13 :45 13 :48 13 :51 13 :54 13 :57 14 :00 14:03 14:06 14:09 14: 12 14: 15 14: 18 14:21 14:24 14 :27 14:30 14:33 14:36 14:39 14:42 14:45 14:48 14:51 14:54 Continued on next page Flow cfs 1. 7 1.6 1 .6 1. 5 1.4 1 .3 1.3 1.2 1.2 1. 1 1 • 1 1. 1 1.0 1.0 1.0 0.9 0 .9 0 .9 0 .9 0.8 0.8 0 .8 0.8 0.8 0 .8 0.8 0.8 0 .8 0 .8 0.8 0 .8 0.8 0.8 0.8 0 .8 0.8 0.7 0.7 0.7 0 .7 0.7 0.7 0.7 0 .7 0 .7 I ontinued from previous page 14:57 0.7 15:51 0.6 16:45 0.5 17:39 0.2 15:00 0.7 15:54 0.6 16:48 0.5 17:42 0.1 15:03 0.7 15:57 0.6 16:51 0.5 17:45 0.4 15:06 0.7 16:00 0.6 16:54 0.5 17:48 0 .3 15:09 0.7 16:03 0.6 16:57 0.5 17:51 0.2 15: 12 0.7 16:06 0.6 17:00 0.5 17:54 0.1 15:15 0.7 16:09 0.6 17:03 0.5 17:57 0.4 15:18 0.7 16:12 0.6 17:06 0.5 18:00 0.3 15:21 0.7 16: 15 0.6 17:09 0.5 18:03 0.2 15:24 0.7 16: 18 0.6 17: 12 0.5 18:06 0.1 15:27 0.7 16:21 0.6 17: 15 0.5 18:09 0.4 15:30 0.6 16:24 0.6 17: 18 0.5 18: 12 0.3 15:33 0.6 16:27 0.6 17:21 0.5 18: 15 0.2 15:36 0.6 16:30 0.5 17:24 0.5 18: 18 0.0 15:39 0.6 16:33 0.5 17:27 0.4 18:21 0.4 15:42 0.6 16:36 0.5 17:30 0.4 18:24 0 .3 15:45 0.6 16:39 0.5 17:33 0.4 15:48 0.6 16:42 0.5 17:36 0.4 Volume of runoff = 1.02ac.ft. Depth of runoff = 6.33 in. File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 10/30/95 Job 95-324 Misc. Note -cs FIRE STATION HYDROS 10 Type SCS Desc. EXISTING AREA B 100 YR Area 1.9 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 5:27 5:30 5:33 5:36 5:39 5:42 5:45 5:48 5:51 5:54 5:57 6:00 6:03 6:06 6:09 6:12 6: 15 6: 18 6:21 6:24 6:27 6:30 6:33 6:36 6:39 6:42 6:45 6:48 6:51 6:54 6:57 7:00 7:03 7:06 7:09 7:12 7:15 7:18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 Flow cfs 0 .0 0 .0 0.0 0.0 0.0 0.0 0.0 0.0 0 .0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0 .1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 Time hr:min 7:42 7:45 7:48 7:51 7:54 7:57 8:00 8:03 8:06 8:09 8: 12 8:15 8:18 8:21 8:24 8:27 8:30 8:33 8:36 8:39 8:42 8:45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9: 12 9: 15 9:18 9:21 9:24 9:27 9 :30 9:33 9:36 9:39 9:42 9:45 9:48 9:51 9:54 Flow cfs 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0. 1 0.1 0. 1 0.2 0.2 0 .2 0.2 0.2 0.2 0 .2 0.2 0 .2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0 .3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0 .3 0 .3 0.3 0.4 0.4 Time hr:min 9 :57 10:00 10:03 10:06 10:09 10: 12 10: 15 10: 18 10:21 10:24 10:27 10:30 10:33 10:36 10:39 10:42 10 :45 10:48 10 :51 10:54 10 :57 11:00 1 1 :03 11 :06 11 :09 11: 12 11 : 15 11:18 11: 21 11 :24 11:27 11 :30 11:33 11:36 11 :39 11 :42 11:45 11:48 11: 51 11 :54 1 1 :57 12:00 12:03 12:06 12:09 Freq. 100.0 yrs CN 75 Len 24 hrs Precip. 11.00 Flow cfs Time hr:min 0.4 12:12 0.4 12 :15 0 .4 12 :18 0.4 12 :21 0.4 12:24 0.4 12:27 0.4 12:30 0 .4 12:33 0.4 12:36 0.5 12:39 0.5 12:42 0.5 12:45 0.5 12:48 0.6 12:51 0.6 12 :54 0.7 12 :57 0 .7 13:00 0. 7 13:03 0. 7 13:06 0.8 13 :09 0.8 13 :12 0.9 13:15 0 .9 13:18 0.9 13 :21 1.0 13:24 1.0 13:27 1.1 13 :30 1.1 13:33 1.2 13:36 1 .3 13:39 1.4 13:42 1.4 13:45 1.5 13:48 2.3 13:51 3.8 13:54 5.1 13:57 5.8 14:00 6 .4 14:03 8. 7 14:06 12.7 14:09 16.2 14 :12 18.2 14 :15 <![£) 14:18 16.8 14:21 11. 7 14:24 Continued on next page Flow cfs 7.4 5.3 4.3 3 .6 3.0 2.6 2.3 2.2 2 .1 2.0 1.9 1.8 1.8 1. 7 1.6 1.5 1.4 1.4 1.4 1.3 1. 2 1.2 1.2 1.2 1.1 1. 1 1.0 1.0 1.0 1.0 1 .0 1.0 1.0 0.9 0 .9 0 .9 0.9 0.9 0.9 0.9 0.9 0 .9 0.9 0.9 0 .9 ontinued from previous page 14:27 0.9 15:21 0.8 16:15 0.7 17:09 0.5 14:30 0.9 15:24 0.8 16: 18 0.7 17:12 0.2 14:33 0.9 15:27 0.8 16:21 0.6 17: 15 0.1 14:36 0.9 15:30 0 .7 16:24 0.6 17:18 0.5 14:39 0.9 15:33 0.7 16:27 0.6 17:21 0 .4 14:42 0.8 15:36 0.7 16:30 0.6 17:24 0 .2 14:45 0.8 15:39 0.7 16:33 0.6 17:27 0.1 14:48 0.8 15:42 0.7 16:36 0.6 17:30 0.5 14:5 1 0.8 15:45 0 .7 16:39 0.6 17:33 0.3 14:54 0.8 15:48 0.7 16:42 0.6 17:36 0.2 14:57 0.8 15:51 0 .7 16:45 0.6 17:39 0.1 15:00 0.8 15:54 0.7 16:48 0.6 17:42 0.5 15:03 0.8 15:57 0.7 16 :51 0 .6 17:45 0.3 15:06 0.8 16:00 0.7 16:54 0.6 17:48 0.2 15:09 0.8 16:03 0.7 16:57 0.6 17:51 0.1 15: 12 0.8 16:06 0.7 17:00 0.6 17:54 0.5 15:15 0.8 16:09 0.7 17:03 0.6 15: 18 0.8 16: 12 0.7 17:06 0.6 Volume of runoff = 1. 17 ac. ft. Depth of runoff = 7.27 in . I ontinued from previous page 15:21 0.6 16: 15 0.5 17:09 0.4 18:03 0.3 15:24 0 .6 16: 18 0.5 17: 12 0.4 18:06 0.3 15:27 0.6 16:21 0.5 17: 15 0 .4 18:09 0 .2 15:30 0.6 16:24 0.5 17: 18 0 .4 18:12 0 . 1 15:33 0.6 16:27 0.5 17:21 0.4 18:15 0 .1 15:36 0.6 16:30 0.5 17:24 0.4 18: 18 0.3 15:39 0.5 16:33 0.5 17 :27 0 .4 18:21 0.2 15:42 0.5 16:36 0 .5 17:30 0.4 18:24 0 .1 15 :45 0.5 16:39 0.5 17:33 0 .4 18 :27 0 .0 15:48 0 .5 16:42 0 .5 17:36 0 .4 18 :30 0 .3 15:51 0 .5 16:45 0 .5 17:39 0 .4 18:33 0.2 15:54 0.5 16:48 0.5 17:42 0.4 18 :36 0 . 1 15:57 0.5 16:51 0 .4 17:45 0.4 18:39 0 .0 16:00 0.5 16:54 0 .4 17:48 0.4 18:42 0 .3 16:03 0.5 16:57 0 .4 17:51 0.4 18:45 0 .2 16:06 0.5 17:00 0.4 17:54 0.4 18:48 o. 1 16 :09 0.5 17:03 0 .4 17:57 0 .4 16:12 0.5 17:06 0.4 18:00 0 .3 Voll.me of runoff = 0 .88 ac. ft. Depth of runoff = 5.47 in. File Name -CS FIRE STATION HYDROS Date 10/30/95 Proj. Leader DEB Client PSA Job 95-324 Hise. Note -CS FIRE STATION HYDROS 8 Type SCS Desc. EXISTING AREA B 25 YR Area 1.9 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 6:21 6:24 6:27 6:30 6:33 6:36 6:39 6:42 6:45 6:48 6:51 6:54 6:57 7:00 7:03 7:06 7:09 7: 12 7:15 7: 18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 7:42 7:45 7:48 7:51 7:54 7:57 8:00 8:03 8:06 8:09 8: 12 8: 15 8:18 8:21 8:24 8:27 8:30 8:33 Flow cfs 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 o.o 0.0 0.0 0.0 o.o 0.0 0.0 0 .0 0.0 0.1 0.1 0 .1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 Time hr:min 8:36 8:39 8:42 8:45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9: 12 9: 15 9: 18 9:21 9:24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9:51 9:54 9:57 10:00 10:03 10:06 10:09 10: 12 10:15 10: 18 10:21 10:24 10:27 10:30 10:33 10:36 10:39 10:42 10:45 10:48 Flow cfs 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 0.5 0.5 Time hr:min 10:51 10:54 10:57 11:00 11:03 11:06 11:09 11: 12 11: 15 11: 18 11: 21 11:24 11:27 11:30 11 :33 11 :36 11 :39 11 :42 11:45 11 :48 11:51 11:54 11:57 12:00 12:03 12:06 12:09 12: 12 12: 15 12: 18 12:21 12:24 12:27 12:30 12:33 12:36 12:39 12:42 12:45 12:48 12:51 12:54 12:57 13:00 13:03 Freq. 25.0 yrs CN 75 Len 24 hrs Precip. 8.80 Flow cfs 0.5 0.5 0.6 0.6 0.6 0 .6 0.7 0.7 0 .7 0.8 0.8 0 .9 0.9 1.0 1 .0 1.6 2.6 3 .6 4. 1 4.6 6 .1 9.2 11.9 13.5 ~ 12.8 9.0 5.7 4.1 3.3 2.8 2.3 2.0 1.8 1. 7 1.6 1.5 1.4 1 .4 1.4 1.3 1.2 1.2 1. 1 1.1 Time hr:min 13:06 13:09 13: 12 13: 15 13: 18 13:21 13:24 13:27 13:30 13:33 13:36 13:39 13:42 13:45 13:48 13:51 13:54 13:57 14:00 14:03 14:06 14:09 14: 12 14: 15 14:18 14:21 14:24 14:27 14:30 14:33 14:36 14:39 14:42 14:45 14:48 14:51 14:54 14:57 15:00 15 :03 15:06 15:09 15: 12 15: 15 15: 18 Continued on next page Flow cfs 1.1 1.0 0.9 0.9 0.9 0.9 0.8 0.8 0.8 0.8 0.8 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.6 0.6 0.6 0 .6 0.6 0.6 0.6 0.6 0 .6 0.6 0.6 0.6 0.6 0 .6 0.6 0.6 0.6 .e Name • CS FIRE STATION HYDROS >j. Leader DEB Client PSA Date 10/30/95 Job 95·324 Misc. Note · CS FIRE STATION HYDROS Type scs Desc. EXISTING AREA B 10 YR ~a 1.9 ac. Time of Concent. 10 min. lrm Dist Type 11 Time 1r:min 7:06 7:09 7: 12 7: 15 7:18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 7:42 7:45 7:48 7:51 7:54 7:57 8:00 8:03 8:06 8:09 8: 12 8: 15 8:18 8:21 8:24 8:27 8:30 8:33 8:36 8:39 8:42 8:45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9:12 9: 15 9: 18 Flow cfs 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.1 0. 1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Time hr:min 9:21 9:24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9:51 9:54 9:57 10:00 10:03 10:06 10:09 10: 12 10:15 10: 18 10:21 10:24 10:27 10:30 10:33 10:36 10:39 10:42 10:45 10:48 10:51 10:54 10:57 11:00 11 :03 11 :06 11 :09 11:12 11:15 11: 18 11:21 11:24 11:27 11:30 11:33 Flow cfs 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.6 0.6 0.7 0.7 0.7 Time hr:min 11 :36 11 :39 11 :42 11:45 11 :48 11: 51 11:54 11:57 12:00 12:03 12:06 12:09 12: 12 12:15 12: 18 12:21 12:24 12:27 12:30 12:33 12:36 12:39 12:42 12:45 12:48 12:51 12:54 12:57 13:00 13:03 13:06 13:09 13: 12 13: 15 13:18 13:21 13:24 13:27 13:30 13:33 13:36 13:39 13:42 13:45 13:48 Freq. 10.0 yrs CN 75 Len 24 hrs Precip. 7.40 Flow cfs Time hr:min 1.1 13:51 1.8 13:54 2.6 13:57 3.0 14:00 3.4 14:03 4.4 14:06 6. 7 14:09 9.0 14:12 10.4 14:15 <II}) 14:18 10.6 14:21 7.6 14:24 4.9 14:27 3.4 14:30 2. 7 14:33 2.3 14:36 1.9 14:39 1.6 14:42 1.5 14:45 1.4 14:48 1 .3 14:51 1.2 14:54 1.2 14:57 1. 1 15 :00 1. 1 15 :03 1. 1 15 :06 1 .0 15 :09 0.9 15:12 0.9 15:15 0.9 15:18 0.9 15:21 0.8 15:24 0.8 15:27 0.8 15:30 0.7 15:33 0. 7 15 :36 0.7 15:39 0.7 15:42 0.6 15:45 0.6 15:48 0.6 15:51 0.6 15:54 0.6 15:57 0.6 16:00 0.6 16:03 Continued on next page Flow cfs 0.6 0.6 0.6 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 ontinued from previous page 17:00 0.3 17:54 0.2 18:48 0.2 19:42 0.1 17:03 0.3 17:57 0.2 18:51 0.2 19:45 0.1 17:06 0.3 18:00 0.2 18:54 0.2 19:48 0.0 17:09 0.3 18:03 0.2 18:57 0.2 19:51 0.1 17: 12 0.3 18:06 0.2 19:00 0.2 19:54 0.1 17: 15 0.3 18:09 0.2 19:03 0.2 19:57 0.1 17: 18 0.3 18: 12 0.2 19:06 0.2 20:00 0.0 17:21 0.3 18: 15 0.2 19:09 0.2 20:03 0. 1 17:24 0.3 18: 18 0.2 19:12 0.2 20:06 0.1 17:27 0.3 18:21 0.2 19:15 0.2 20:09 0. 1 17:30 0.3 18:24 0.2 19: 18 0.2 20:12 0.0 17:33 0.3 18:27 0.2 19:21 0.2 20: 15 0. 1 17:36 0.2 18:30 0.2 19:24 0.2 20: 18 0.1 17:39 0.2 18:33 0.2 19:27 0.2 20:21 0.1 17:42 0.2 18:36 0.2 19:30 0.2 20:24 0.0 17:45 0.2 18:39 0.2 19:33 0.2 20:27 0.1 17:48 0.2 18:42 0.2 19:36 0.1 17:51 0.2 18:45 0.2 19:39 0.1 Vollllle of runoff = 0.54 ac. ft. Depth of runoff = 3.37 in. 'ontinued from previous page 16:06 0.4 17:00 0.4 17:54 0.3 18:48 0.2 16:09 0.4 17:03 0.3 17:57 0.3 18:51 0.2 16:12 0.4 17:06 0.3 18:00 0 .3 18:54 0.2 16: 15 0.4 17:09 0.3 18:03 0.3 18:57 0.2 16: 18 0.4 17:12 0.3 18:06 0.3 19 :00 0.1 16:21 0.4 17: 15 0.3 18:09 0 .3 19:03 0.1 16:24 0.4 17: 18 0.3 18: 12 0.3 19:06 0.0 16:27 0.4 17:21 0.3 18: 15 0.3 19:09 0.2 16:30 0.4 17:24 0.3 18: 18 0.3 19: 12 0 .1 16:33 0.4 17:27 0.3 18:21 0 .3 19:15 0 . 1 16:36 0.4 17:30 0.3 18:24 0.3 19: 18 0.0 16:39 0 .4 17:33 0.3 18:27 0.3 19:21 0.2 16:42 0.4 17:36 0.3 18:30 0.3 19:24 0.1 16:45 0.4 17:39 0.3 18:33 0.2 19:27 0.1 16:48 0.4 17:42 0.3 18:36 0.2 19:30 0.0 16:51 0 .4 17:45 0.3 18:39 0.2 19:33 0.2 16:54 0.4 17:48 0.3 18:42 0.2 16:57 0.4 17:51 0.3 18:45 0.2 VollJTle of runoff = 0.70 ac. ft. Depth of runoff = 4.33 in. Appendix C Runoff Calculations (Hydrographs) B(DEV) File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 10/30/95 Job 95-324 Misc. Note -CS FIRE STATION HYDROS 11 Type scs Desc. PROPOSED AREA B 5 YR Area 1.9 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 2: 18 2:21 2:24 2:27 2:30 2:33 2:36 2:39 2:42 2:45 2:48 2:51 2:54 2:57 3:00 3:03 3:06 3:09 3:12 3: 15 3: 18 3:21 3:24 3:27 3:30 3:33 3:36 3:39 3:42 3:45 3:48 3:51 3:54 3:57 4:00 4:03 4:06 4:09 4: 12 4:15 4:18 4:21 4:24 4:27 4:30 Flow cfs 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Time hr:min 4:33 4:36 4:39 4:42 4:45 4:48 4:51 4:54 4:57 5:00 5:03 5:06 5:09 5: 12 5: 15 5: 18 5:21 5:24 5:27 5:30 5:33 5:36 5:39 5:42 5:45 5:48 5:51 5:54 5:57 6:00 6:03 6:06 6:09 6:12 6: 15 6:18 6:21 6:24 6:27 6:30 6:33 6:36 6:39 6:42 6:45 Flow cfs 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0. 1 0.1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0.1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0.1 0. 1 0.1 0.1 0. 1 0. 1 0.1 0. 1 0.1 0.1 0 .2 0.2 0.2 0.2 0.2 0.2 0.2 Time hr:min 6:48 6:51 6:54 6:57 7:00 7:03 7:06 7:09 7: 12 7: 15 7: 18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 7:42 7:45 7:48 7 :51 7:54 7:57 8:00 8:03 8:06 8:09 8: 12 8: 15 8: 18 8:21 8:24 8:27 8:30 8:33 8:36 8:39 8:42 8:45 8:48 8:51 8:54 8:57 9:00 Freq. 5.0 yrs CN 94 Len 24 hrs Precip. 6.20 Flow cfs 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0 .2 0 .2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Time hr:min 9:03 9:06 9:09 9: 12 9: 15 9: 18 9:21 9:24 9:27 9:30 9:33 9:36 9 :39 9:42 9:45 9:48 9 :51 9:54 9 :57 10:00 10:03 10:06 10:09 10:12 10 : 15 10: 18 10:21 10:24 10:27 10:30 10:33 10:36 10:39 10:42 10:45 10:48 10:51 10:54 10:57 11 :00 11:03 11 :06 11 :09 11: 12 11: 15 Continued on next page Flow cfs 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0 .3 0.3 0 .3 0 .4 0.4 0 .4 0 .4 0.4 0 .4 0 .4 0 .4 0 .4 0.4 0 .4 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0 .6 0.6 0 .6 0.6 0.7 0.7 0.7 0 .8 0.8 0.8 0 .8 0.9 0.9 :ontinued from previous page 11:18 0 .9 12: 12 4.6 13:06 0.8 14:00 0.6 11: 21 1.0 12: 15 3.3 13:09 0.8 14:03 0.6 11:24 1.0 12: 18 2.7 13: 12 0.7 14:06 0.6 11:27 1.1 12:21 2.2 13: 15 0.7 14:09 0.6 11:30 1.1 12:24 1.8 13: 18 0.7 14: 12 0.4 11:33 1.2 12:27 1.6 13:21 0.7 14: 15 0.2 11:36 1.8 12:30 1.4 13:24 0.7 14: 18 0.1 11:39 3.0 12:33 1.4 13:27 0.6 14:21 0.5 11 :42 3 .8 12:36 1.3 13:30 0.6 14:24 0.4 11:45 4.3 12:39 1.2 13:33 0.6 14:27 0.2 11:48 4.7 12:42 1.2 13:36 0.6 14:30 0.1 11: 51 6.2 12:45 1. 1 13:39 0.6 14:33 0.5 11:54 8.9 12:48 1.1 13:42 0.6 14:36 0.4 11 :57 10.9 12:51 1. 1 13:45 0.6 14:39 0.2 12:00 12.0 12:54 1.0 13:48 0.6 14:42 0.1 12:03 (ID) 12:57 0.9 13:51 0.6 14:45 0.5 12:06 10.6 13:00 0.9 13:54 0.6 12:09 7.2 13:03 0.9 13:57 0.6 Voll.Ille of runoff = 0. 73 ac. ft. Depth of runoff = 4.55 in. File Name • CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 10/30/95 Job 95 ·324 Misc. Note · CS FIRE STATION HYDROS 12 Type SCS Desc. PROPOSED AREA B 10 YR Area 1.9 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 2:00 2:03 2:06 2:09 2: 12 2:15 2:18 2:21 2:24 2:27 2:30 2:33 2:36 2:39 2:42 2:45 2:48 2:51 2:54 2:57 3:00 3:03 3:06 3:09 3: 12 3: 15 3: 18 3:21 3:24 3:27 3:30 3:33 3:36 3:39 3:42 3:45 3:48 3:51 3:54 3:57 4:00 4:03 4:06 4:09 4: 12 Flow cfs 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 .0 0.0 0.0 0.0 0.0 0.0 0.0 0 .0 0 .0 0.0 0.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0 . 1 0.1 0.1 0.1 0. 1 0.1 0.1 0 .1 0.1 0.1 0.1 0.1 0.1 Time hr:min 4: 15 4: 18 4:21 4:24 4:27 4:30 4:33 4:36 4:39 4:42 4:45 4:48 4:51 4:54 4:57 5:00 5:03 5:06 5:09 5: 12 5: 15 5: 18 5:21 5:24 5:27 5:30 5:33 5:36 5:39 5:42 5:45 5:48 5:51 5:54 5:57 6:00 6:03 6:06 6:09 6:12 6: 15 6:18 6:21 6:24 6:27 Flow cfs 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0. 1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0 .1 0 .1 0 .2 0.2 0 .2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Time hr:min 6:30 6:33 6:36 6:39 6:42 6:45 6:48 6:51 6:54 6:57 7:00 7:03 7:06 7:09 7: 12 7: 15 7:18 7:21 7:24 7:27 7 :30 7 :33 7:36 7 :39 7:42 7:45 7:48 7:51 7:54 7:57 8:00 8:03 8:06 8:09 8 : 12 8 : 15 8:18 8:21 8:24 8 :27 8 :30 8:33 8:36 8:39 8:42 Freq. 10.0 yrs CN 94 Len 24 hrs Precip. 7.40 Flow cfs 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0 .2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0 .2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0 .2 0.2 0.2 0 .2 0.2 0 .3 0.3 0 .3 0 .3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Time hr:min 8:45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9: 12 9:15 9:18 9:21 9:24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9 :51 9 :54 9:57 10:00 10:03 10:06 10 :09 10:12 10: 15 10: 18 10:21 10:24 10:27 10:30 10:33 10 :36 10:39 10 :42 10:45 10:48 10:51 10:54 10:57 Continued on next page Flow cfs 0.3 0.3 0.3 0.3 0.3 0.3 0 .3 0.3 0.4 0.4 0.4 0.4 0 .4 0.4 0.4 0.4 0 .4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0 .5 0.5 0 .5 0 .5 0.5 0 .5 0.5 0.6 0.6 0.6 0.6 0.6 0.7 0 .7 0 .8 0.8 0.8 0.8 0.9 ontinued from previous page 11:00 0.9 11:54 9.7 12:48 1.3 13:42 0.8 11:03 0.9 11 :57 12.6 12:51 1.3 13:45 0.8 11:06 1.0 12:00 14. 1 12:54 1.2 13:48 0.8 11:09 1.0 12:03 CI[!) 12:57 1.1 13:51 0.7 11:12 1.1 12:06 13.8 13:00 1.1 13:54 0.7 11: 15 1.1 12:09 10.0 13:03 1.0 13:57 0.5 11:18 1.1 12: 12 6.4 13:06 1.0 14:00 0.3 11:21 1.1 12:15 4.4 13:09 1.0 14:03 0.1 11:24 1.2 12: 18 3.4 13: 12 0.9 14:06 0.7 11 :27 1.3 12:21 2.8 13: 15 0.9 14:09 0.5 11 :30 1.4 12:24 2.3 13:18 0.9 14:12 0.3 11 :33 1.4 12:27 2.0 13:21 0.8 14:15 0.1 11 :36 1.9 12:30 1.8 13:24 0.8 14: 18 0.6 11:39 3.2 12:33 1. 7 13:27 0.8 14:21 0.4 11 :42 4.4 12:36 1.6 13:30 0.8 14:24 0.3 11:45 5.1 12:39 1.5 13:33 0.8 14:27 0.1 11:48 5.5 12:42 1.4 13:36 0.8 11: 51 6.7 12:45 1.4 13:39 0.8 Volune of runoff = 0.87 ac. ft. Depth of runoff = 5.42 in. File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 10/30/95 Job 95-324 Misc. Note -CS FIRE STATION HYDROS 13 Type SCS Desc. PROPOSED AREA B 25 YR :Area 1.9 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 1 :42 1:45 1 :48 1:51 1 :54 1 :57 2:00 2:03 2:06 2:09 2:12 2: 15 2:18 2:21 2:24 2:27 2:30 2:33 2:36 2:39 2:42 2:45 2:48 2:51 2:54 2:57 3:00 3:03 3:06 3:09 3: 12 3:15 3:18 3:21 3:24 3:27 3:30 3:33 3:36 3:39 3:42 3:45 3:48 3:51 3:54 Flow cfs 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0. 1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Time hr:min 3:57 4:00 4:03 4:06 4:09 4: 12 4: 15 4:18 4:21 4:24 4:27 4:30 4:33 4:36 4:39 4:42 4:45 4:48 4:51 4:54 4:57 5:00 5:03 5:06 5:09 5: 12 5: 15 5: 18 5:21 5:24 5:27 5:30 5:33 5:36 5:39 5:42 5:45 5:48 5:51 5:54 5:57 6:00 6:03 6:06 6:09 Flow cfs 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Time hr:min 6: 12 6: 15 6:18 6:21 6:24 6:27 6:30 6:33 6:36 6:39 6:42 6:45 6:48 6:51 6:54 6:57 7:00 7:03 7:06 7:09 7: 12 7:15 7:18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 7:42 7:45 7:48 7:51 7:54 7:57 8:00 8:03 8:06 8:09 8: 12 8: 15 8: 18 8:21 8:24 Freq. 25.0 yrs CN 94 Len 24 hrs Precip. 8.80 Flow cfs 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 Time hr:min 8:27 8:30 8:33 8:36 8:39 8:42 8:45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9: 12 9: 15 9: 18 9:21 9:24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9:51 9:54 9:57 10:00 10:03 10:06 10:09 10: 12 10:15 10: 18 10:21 10:24 10:27 10:30 10:33 10:36 10:39 Continued on next page Flow cfs 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.7 0.7 0.7 0.8 0.8 0.9 ontinued from previous page 10:42 0.9 11 :36 2.6 12:30 2.1 13:24 0.9 10:45 0.9 11:39 4.2 12:33 2.0 13:27 0.9 10:48 0.9 11:42 5.6 12:36 1.9 13:30 0.9 10:51 1.0 11:45 6.3 12:39 1.8 13:33 0.9 10:54 1.0 11 :48 6.7 12:42 1. 7 13:36 0.9 10:57 1.1 11 :51 8.7 12:45 1.6 13:39 0.8 11:00 1.1 11:54 12.6 12:48 1.6 13:42 0.3 11:03 1.1 11:57 15.6 12:51 1.5 13:45 0.1 11:06 1.2 12:00 17.2 12:54 1.4 13:48 0.8 11:09 1.3 12:03 ~ 12:57 1.3 13:51 0.5 11: 12 1.3 12:06 . 13:00 1.3 13:54 0.3 11: 15 1.3 12:09 10.8 13:03 1.2 13:57 0.1 11: 18 1.4 12: 12 6.8 13:06 1.2 14:00 0.7 11: 21 1.4 12:15 4.8 13:09 1. 1 14:03 0.5 11:24 1.5 12: 18 3.9 13: 12 1.0 14:06 0.3 11:27 1.6 12:21 3.2 13: 15 0.9 14:09 0. 1 11:30 1. 7 12:24 2.7 13:18 0.9 11:33 1.8 12:27 2.3 13:21 0.9 Voll.Ille of runoff = 1.04 ac. ft. Depth of runoff = 6.49 in. File Name -CS FIRE STATION HYDROS Date 10/30/95 roj. Leader DEB Client PSA Job 95-324 Hise. Note -CS FIRE STATION HYDROS 14 Type SCS Desc. PROPOSED AREA B 50 YR Area 1.9 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 1 :33 1 :36 1:39 1:42 1 :45 1 :48 1:51 1 :54 1 :57 2:00 2:03 2:06 2:09 2: 12 2: 15 2: 18 2:21 2:24 2:27 2:30 2:33 2:36 2:39 2:42 2:45 2:48 2:51 2:54 2:57 3:00 3:03 3:06 3:09 3: 12 3:15 3:18 3:21 3:24 3:27 3:30 3:33 3:36 3:39 3:42 3:45 Flow cfs 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Time hr:min 3:48 3:51 3:54 3:57 4:00 4:03 4:06 4:09 4: 12 4: 15 4: 18 4:21 4:24 4:27 4:30 4:33 4:36 4:39 4:42 4:45 4:48 4:51 4:54 4:57 5:00 5:03 5:06 5:09 5: 12 5:15 5: 18 5:21 5:24 5:27 5:30 5:33 5:36 5:39 5:42 5:45 5:48 5:51 5:54 5:57 6:00 Flow cfs 0.1 0. 1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Time hr:min 6:03 6:06 6:09 6:12 6: 15 6:18 6:21 6:24 6:27 6:30 6:33 6:36 6:39 6:42 6:45 6:48 6:51 6:54 6:57 7:00 7:03 7:06 7:09 7: 12 7: 15 7: 18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 7:42 7:45 7:48 7:51 7:54 7 :57 8 :00 8:03 8:06 8:09 8: 12 8: 15 Freq. 50.0 yrs CN 94 Len 24 hrs Precip. 9.80 Flow cfs 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0 .3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0 .3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 Time hr:min 8:18 8:21 8:24 8:27 8:30 8:33 8:36 8:39 8:42 8 :45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9:12 9: 15 9: 18 9:21 9:24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9:51 9:54 9:57 10:00 10:03 10:06 10:09 10:12 10:15 10: 18 10:21 10:24 10 :27 10:30 Continued on next page Flow cfs 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0 .6 0.6 0.6 0.6 0.6 0.6 0 .6 0 .6 0.6 0.6 0 .6 0 .7 0 .7 0.7 0.7 0.7 0.8 0.8 0.8 ontinued from previous page 10:33 0.8 11:27 1.8 12:21 3.6 13: 15 1.1 10:36 0.9 11 :30 1.9 12:24 3.0 13: 18 1.1 10:39 1.0 11:33 2.0 12:27 2 .5 13:21 1.1 10:42 1.0 11 :36 2 .9 12:30 2.3 13:24 1.1 10:45 1.0 11 :39 4.8 12:33 2.2 13:27 1.1 10:48 1.1 11 :42 6 .2 12:36 2.1 13:30 1.1 10:51 1.1 11 :45 7.0 12:39 2.0 13:33 1. 1 10:54 1.2 11:48 7.5 12:42 1 .8 13:36 1.0 10:57 1.2 11: 51 9.8 12:45 1.8 13:39 0 .7 11:00 1.3 11:54 14. 1 12:48 1.8 13:42 0.4 11:03 1.3 11 :57 17.5 12:51 1. 7 13:45 0.1 11:06 1.3 12:00 19.2 12:54 1.6 13:48 0.9 11:09 1.4 12:03 00 12:57 1.5 13:51 0 .7 11: 12 1.5 12:06 17.3 13:00 1.4 13:54 0.4 11: 15 1.5 12:09 12.0 13:03 1.3 13:57 0.1 11: 18 1.5 12:12 7.6 13:06 1.2 14:00 0.9 11 :21 1.6 12 : 15 5.4 13:09 1.2 11:24 1. 7 12: 18 4.3 13: 12 1.1 Voll.111e of runoff = 1.16 ac . ft. Depth of runoff = 7.23 in. File Name· CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 10/30/95 Job 95-324 Misc. Note · CS FIRE STATION HYDROS 15 Type SCS Desc. PROPOSED AREA B 100 YR Area 1.9 ac. Time of Concent. 10 min. Sto rm Dist Type II Time hr:min 1 :24 1 :27 1:30 1:33 1 :36 1 :39 1:42 1:45 1 :48 1: 51 1:54 1 :57 2:00 2:03 2:06 2:09 2: 12 2: 15 2: 18 2:21 2:24 2:27 2:30 2:33 2:36 2:39 2:42 2:45 2:48 2:51 2:54 2:57 3:00 3:03 3:06 3:09 3:12 3: 15 3: 18 3:21 3 :24 3:27 3:30 3:33 3:36 Flow cfs 0.0 0.0 0.0 0.0 0.0 0 .0 0.0 0.0 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0 .1 0.1 0.1 0 .1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0 .1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0 .1 0.1 0.1 0.1 0.1 Time hr:min 3:39 3:42 3:45 3:48 3:51 3:54 3:57 4:00 4:03 4:06 4:09 4: 12 4: 15 4: 18 4 :21 4:24 4:27 4:30 4:33 4:36 4:39 4:42 4:45 4:48 4:51 4:54 4:57 5:00 5:03 5 :06 5:09 5: 12 5: 15 5: 18 5:21 5:24 5:27 5:30 5:33 5:36 5:39 5:42 5:45 5:48 5:51 Flow cfs 0.1 0.1 0.1 0.1 0 .2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0 .2 0 .2 0.2 0.2 0 .2 0.2 0.2 0.2 0.2 0 .2 0.2 0.2 0.2 0 .2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0 .3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Time hr:min 5:54 5:57 6:00 6:03 6:06 6:09 6: 12 6: 15 6:18 6:21 6:24 6:27 6:30 6:33 6 :36 6 :39 6 :42 6:45 6:48 6:51 6:54 6:57 7:00 7:03 7:06 7:09 7: 12 7: 15 7:18 7:21 7:24 7:27 7:30 7:33 7:36 7 :39 7 :42 7:45 7 :48 7:51 7:54 7 :57 8:00 8:03 8:06 Freq. 100.0 yrs CN 94 Len 24 hrs Precip. 11.00 Flow cfs 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0 .4 0.4 0.4 0 .4 0.4 0 .4 0 .4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Time hr:min 8:09 8: 12 8: 15 8 :18 8:21 8 :24 8:27 8:30 8 :33 8:36 8:39 8:42 8:45 8 :48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9: 12 9: 15 9: 18 9 :21 9:24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9 :51 9:54 9 :57 10:00 10 :03 10:06 10 :09 10 :12 10 : 15 10: 18 10:21 Continued on next page Flow cfs 0.4 0.4 0.4 0.4 0.5 0 .5 0.5 0 .5 0 .5 0.5 0.5 0.5 0.5 0.5 0 .5 0 .5 0.5 0 .5 0 .5 0 .6 0 .6 0 .6 0 .6 0 .6 0 .6 0 .6 0.6 0 .6 0 .6 0.6 0.7 0.7 0 .7 0 .7 0.7 0.7 0.7 0 .7 0.7 0.7 0 .8 0 .8 0 .8 0.8 0 .8 ontinued from previous page 10:24 0.9 11:18 1. 7 12: 12 8.9 13:06 1.1 10:27 0.9 11:21 1.8 12: 15 6.2 13:09 1.1 10:30 0.9 11:24 1.9 12: 18 5.0 13: 12 1.1 10:33 1.0 11:27 2.0 12:21 4.1 13: 15 1.1 10:36 1.0 11:30 2.1 12:24 3.4 13:18 1.1 10:39 1.1 11:33 2.2 12:27 2.9 13:21 1.1 10:42 1.2 11 :36 3.1 12:30 2.6 13:24 1.1 10:45 1.2 11:39 5.2 12:33 2.5 13:27 1.0 10:48 1.2 11:42 6.9 12:36 2.4 13:30 0.7 10:51 1.2 11 :45 7.8 12:39 2.2 13:33 0.4 10:54 1.3 11:48 8.4 12:42 2 .1 13:36 0.1 10:57 1.4 11: 51 10.6 12:45 2.0 13:39 0.9 11:00 1.4 11:54 15.4 12:48 2.0 13:42 0.7 11:03 1.5 11 :57 19.4 12:51 1.9 13:45 0.4 11 :06 1.5 12:00 21.5 12:54 1.8 13:48 0.1 11:09 1.6 12:03 ~ 12:57 1.6 13:51 0 .9 11: 12 1. 7 12:06 . 13:00 1.2 11: 15 1. 7 12:09 14. 1 13:03 1. 1 Voli.me of runoff = 1.29 ac. ft. Depth of runoff = 8.02 in. Appendix D Runoff Calculations (Hydrographs) A(EX)+B(EX) File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 11/13/95 Job 95-324 Misc. Note -CS FIRE STATION HYDROS 16 Type SCS Desc. EXISTING 5 YR A+B ~rea 5.3 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 6:09 6: 13 6: 17 6:21 6:25 6:29 6:33 6:37 6:41 6:45 6:49 6:53 6:57 7:01 7:05 7:09 7:13 7: 17 7:21 7:25 7:29 7:33 7:37 7:41 7:45 7:49 7:53 7:57 8:01 8:05 8:09 8: 13 8: 17 8:21 8:25 8:29 8:33 8:37 8:41 8:45 8:49 8:53 8:57 9:01 9:05 Flow cfs o.o 0.0 0.0 0.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Time hr:min 9:09 9: 13 9: 17 9:21 9:25 9:29 9:33 9:37 9:41 9:45 9:49 9:53 9:57 10:01 10:05 10:09 10: 13 10: 17 10:21 10:25 10:29 10:33 10:37 10:41 10:45 10:49 10:53 10:57 11 :01 11 :05 11 :09 11: 13 11:17 11: 21 11:25 11:29 11 :33 11 :37 11:41 11:45 11:49 11:53 11 :57 12:01 12:05 Flow cfs 0.2 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.7 0.8 0.8 0.9 0.9 1.0 1.1 1.2 1.2 1.3 1.4 1.5 1.6 1.8 2.4 3.9 6.0 7.9 10.6 15.7 21.8 G:&. 23.9 Time hr:min 12:09 12: 13 12: 17 12:21 12:25 12:29 12:33 12:37 12:41 12:45 12:49 12:53 12:57 13:01 13:05 13:09 13:13 13: 17 13:21 13:25 13:29 13:33 13:37 13:41 13:45 13:49 13:53 13:57 14:01 14:05 14:09 14: 13 14: 17 14:21 14:25 14:29 14:33 14:37 14:41 14:45 14:49 14:53 14:57 15:01 15:05 Freq. 5.0 yrs CN 80 Len 24 hrs Precip. 6.20 Flow cfs 17.2 10.3 7.1 5.3 4.2 3 .6 3.2 3.0 2.8 2.6 2.5 2.4 2.2 2.1 2.0 1.9 1.8 1. 7 1.6 1. 5 1. 5 1.4 1.4 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.2 1. 2 1. 2 1.2 1.2 1.2 1. 2 1. 2 1. 2 1.2 1.2 Time hr:min 15:09 15:13 15: 17 15:21 15:25 15:29 15:33 15:37 15:41 15:45 15:49 15:53 15 :57 16:01 16:05 16:09 16: 13 16: 17 16:21 16:25 16:29 16:33 16:37 16:41 16:45 16:49 16:53 16:57 17:01 17:05 17:09 17: 13 17:17 17:21 17:25 17:29 17:33 17:37 17:41 17:45 17:49 17:53 17:57 18:01 18:05 Continued on next page Flow cfs 1.2 1.2 1.1 1.1 1.1 1.1 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.8 0.8 0.8 0.7 0.6 0.6 0.6 0.5 0.6 0.5 0.4 0.5 0.5 0.4 0.4 0.3 0.2 0.2 ontinued from previous page 18:09 0.2 18:33 0.2 18:57 0.2 19:21 0.2 18: 13 0.2 18:37 0.2 19:01 0.2 19:25 0.2 18: 17 0.2 18:41 0.2 19:05 0.2 19:29 0.2 18:21 0.2 18:45 0.2 19:09 0.2 19:33 0.1 18:25 0.2 18:49 0.2 19:13 0.2 19:37 0.1 18:29 0.2 18:53 0.2 19: 17 0.2 19:41 0.1 Volune of runoff = 1.65 ac. ft. Depth of runoff = 3.77 in. File Name -cs FIRE STATION HYDROS roj. Leader DEB Client PSA Date 11/13/95 Job 95 -324 Misc. Note -cs FIRE STATION HYDROS 17 Type scs Desc. EXISTING A+B 10 YR Area 5.3 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 5:23 5:27 5:31 5:35 5:39 5:43 5 :47 5:51 5:55 5:59 6:03 6:07 6: 11 6: 15 6: 19 6:23 6:27 6:31 6:35 6:39 6:43 6:47 6:51 6:55 6:59 7:03 7:07 7: 11 7:15 7: 19 7:23 7:27 7:31 7:35 7:39 7:43 7:47 7:51 7:55 7:59 8:03 8:07 8: 11 8:15 8:19 Flow cfs 0.0 0.0 0.0 0.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0 .1 0.1 0.1 0 .1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Time hr:min 8:23 8:27 8:31 8:35 8:39 8:43 8:47 8 :51 8:55 8:59 9:03 9:07 9: 11 9 : 15 9: 19 9:23 9:27 9:31 9:35 9:39 9:43 9:47 9:51 9:55 9:59 10:03 10:07 10: 11 10: 15 10: 19 10:23 10:27 10:31 10:35 10:39 10:43 10:47 10:51 10:55 10:59 11 :03 11:07 11 : 11 11:15 11: 19 Flow cfs 0.3 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.7 0.7 0.7 0.8 0.8 0.8 0.9 0.9 1.0 1. 1 1.2 1.3 1.4 1.4 1.5 1.6 1. 7 1.8 2.0 Time hr:min 11:23 11:27 11:31 11:35 11:39 11:43 11:47 11: 51 11:55 11:59 12:03 12:07 12: 11 12: 15 12: 19 12:23 12 :27 12:31 12:35 12:39 12:43 12:47 12:51 12:55 12:59 13:03 13:07 13: 11 13: 15 13: 19 13:23 13:27 13:31 13:35 13:39 13:43 13:47 13:51 13:55 13:59 14:03 14:07 14: 11 14: 15 14: 19 Freq. 10.0 yrs CN 80 Len 24 hrs Precip. 7.40 Flow cfs 2.1 2.3 2.6 3.7 6.3 9 .0 11.2 16.2 23.8 30.1 QI)) 26.8 17.9 11.0 7.6 6.0 4.8 4.2 3.9 3.6 3.3 3.2 3.1 2.8 2.6 2.5 2.4 2.3 2.2 2.1 2.0 1.9 1.8 1.8 1. 7 1. 7 1. 7 1.7 1.6 1.6 1.6 1.6 1.6 1.6 1.5 Ti me hr:min 14:23 14:27 14:31 14:35 14:39 14:43 14:47 14:51 14:55 14:59 15:03 15:07 15:11 15:15 15:19 15:23 15:27 15:31 15:35 15:39 15:43 15:47 15:51 15:55 15:59 16:03 16:07 16: 11 16: 15 16: 19 16:23 16:27 16:31 16:35 16:39 16:43 16:47 16:51 16:55 16:59 17:03 17:07 17: 11 17: 15 17:19 Continued on next page Flow cfs 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.4 1.4 1.4 1.4 1.4 1.4 1 .3 1.3 1 .3 1.3 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1 .2 1.2 1. 1 1. 1 1.0 0.8 0.7 0.8 0.7 0.7 0 .8 0.6 0 .6 0.7 0.4 0.3 'ontinued from previous page 17:23 0.3 17:55 0.3 18:27 0.2 18:59 0.1 17:27 0.3 17:59 0.3 18:31 0.2 19:03 0.0 17:31 0.3 18:03 0.3 18:35 0.2 19:07 0.0 17:35 0.3 18:07 0.3 18:39 0.2 19: 11 0. 1 17:39 0.3 18: 11 0.3 18:43 0.2 19: 15 0.0 17:43 0.3 18: 15 0.3 18:47 0.2 19: 19 0.0 17:47 0.3 18: 19 0.3 18:51 0.2 19:23 0.1 17:51 0.3 18:23 0.3 18:55 0.1 19:27 o.o Volume of runoff = 2.07 ac. ft. Depth of runoff = 4.72 in. File Name · CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 11/13/95 Job 95 ·324 Misc. Note -cs FIRE STATION HYDROS 18 Type SCS Desc. EXISTING A+B 25 YR Area 5.3 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 4:32 4:36 4:40 4:44 4:48 4:52 4:56 5:00 5:04 5:08 5: 12 5:16 5:20 5:24 5:28 5:32 5:36 5:40 5:44 5:48 5:52 5:56 6:00 6:04 6:08 6: 12 6: 16 6:20 6:24 6:28 6:32 6:36 6:40 6:44 6:48 6:52 6:56 7:00 7:04 7:08 7: 12 7: 16 7:20 7:24 7:28 Flow cfs 0.0 0.0 0.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0 . 1 0.1 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0 .2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Time hr:111in 7:32 7:36 7:40 7:44 7:48 7:52 7:56 8:00 8:04 8 :08 8 :12 8:16 8 :20 8:24 8:28 8 :32 8:36 8 :40 8:44 8:48 8:52 8:56 9:00 9:04 9:08 9:12 9:16 9 :20 9:24 9:28 9:32 9:36 9:40 9:44 9:48 9:52 9:56 10:00 10:04 10:08 10:12 10:16 10:20 10:24 10:28 Flow cfs 0.2 0.2 0.3 0.3 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0 .4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0 .7 0.7 0.7 0.7 0.7 0.7 0.7 0.8 0.8 0.8 0.8 0.8 0.9 0.9 0.9 1.0 1.0 1. 1 1. 1 Time hr:min 10:32 10:36 10:40 10:44 10:48 10:52 10:56 11:00 11:04 11:08 11: 12 11: 16 11:20 11:24 11:28 11:32 11:36 11:40 11:44 11:48 11:52 11 :56 12:00 12:04 12:08 12: 12 12: 16 12:20 12:24 12:28 12:32 12:36 12:40 12:44 12:48 12:52 12:56 13:00 13:04 13:08 13: 12 13: 16 13:20 13:24 13:28 Freq. 25.0 yrs CN 80 Len 24 hrs Precip. 8.80 Flow cfs 1.2 1.3 1.4 1.6 1. 7 1.8 1.9 2.0 2. 1 2.2 2.4 2 .5 2.6 2.8 3. 1 3 .6 5 .4 8.9 12. 1 15.2 22. 1 31.6 38.5 G"Q> 31. 1 20.0 12.4 8.9 7.0 5.7 5.1 4.7 4.3 4. 1 3.9 3.7 3.4 3.2 3.1 2.9 2.7 2.6 2.5 2.4 2.3 Time hr:min 13:32 13:36 13 :40 13:44 13 :48 13:52 13:56 14:00 14:04 14:08 14: 12 14: 16 14:20 14:24 14 :28 14:32 14 :36 14:40 14:44 14:48 14:52 14:56 15:00 15 :04 15:08 15: 12 15:16 15:20 15 :24 15:28 15:32 15:36 15:40 15:44 15:48 15:52 15:56 16:00 16:04 16:08 16: 12 16:16 16:20 16:24 16:28 Continued on next page Flow cfs 2.2 2.2 2.1 2.1 2. 1 2. 1 2.1 2.0 2.0 2.0 2.0 2.0 2.0 1.9 1.9 1.9 1.8 1.8 1.8 1.8 1.8 1.8 1.8 1. 7 1. 7 1. 7 1. 7 1. 7 1. 7 1. 7 1. 7 1.6 1.5 1.5 1.5 1.5 1.5 1.5 1.4 1. 2 0 .9 0.9 1.0 0.9 0.9 ontinued from previous page 16:32 1.0 17 :08 0.4 17:44 0.4 18:20 0.2 16:36 0.9 17:12 0 .4 17:48 0.4 18:24 0 .1 16 :40 0.6 17: 16 0 .4 17:52 0.4 18:28 0 .1 16:44 0.5 17:20 0.4 17:56 0.3 18:32 0.1 16:48 0.4 17:24 0 .4 18 :00 0.3 18 :36 0.1 16:52 0.4 17:28 0.4 18:04 0.2 18:40 0.1 16:56 0.4 17:32 0.4 18:08 0 .2 18 :44 0.1 17 :00 0.4 17:36 0.4 18: 12 0.1 18 :48 0.0 17:04 0.4 17:40 0.4 18: 16 0.1 18 :52 0 .0 Voll.Ille of runoff = 2.56 ac. ft . Depth of runof f = 5.83 in . File Name -cs FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 11/13/95 Job 95-324 Misc. Note -. CS FIRE STATION HYDROS 19 Type scs Desc . EX A+B so YR Area 5.3 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 4:05 4:09 4:13 4: 17 4:21 4:25 4:29 4:33 4:37 4:41 4:45 4:49 4:53 4:57 5:01 5:05 5:09 5:13 5: 17 5:21 5:25 5:29 5:33 5:37 5:41 5:45 5 :49 5:53 5:57 6:01 6:05 6:09 6:13 6:17 6:21 6:25 6:29 6:33 6:37 6:41 6:45 6:49 6:53 6:57 7:01 Flow cfs 0.0 o.o 0.0 0.0 0. 1 0.1 0. 1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0 .1 0.1 0.1 0.1 0. 1 0.1 0 .1 0. 1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.4 0.4 Time hr:min 7:05 7:09 7: 13 7:17 7:21 7:25 7:29 7:33 7 :37 7:41 7:45 7:49 7:53 7:57 8:01 8:05 8:09 8:13 8:17 8:21 8:25 8:29 8:33 8:37 8:41 8:45 8:49 8:53 8:57 9:01 9:05 9:09 9:13 9:17 9:21 9:25 9:29 9:33 9:37 9:41 9:45 9:49 9:53 9:57 10:01 Flow cfs 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0 .4 0 .5 0.5 0.5 0.5 0.6 0.6 0 .7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.8 0 .8 0.8 0.8 0.8 0.8 0.9 0.9 1.0 1.0 1. 1 1.1 1.1 Time hr:min 10:05 10:09 10: 13 10:17 10:21 10:25 10:29 10:33 10:37 10:41 10:45 10 :49 10:53 10:57 11 :01 11 :05 11 :09 11: 13 11 : 17 11 : 21 11:25 11:29 11 :33 11 :37 11 :41 11 :45 11 :49 11:53 11 :57 12:01 12:05 12:09 12: 13 12: 17 12:21 12:25 12:29 12 :33 12 :37 12:4 1 12:45 12:49 12:53 12:57 13:01 Freq. 50.0 yrs CN 80 Len 24 hrs Precip. 9.80 Flow cfs Time hr :min 1.1 13:05 1.1 13:09 1.1 13:13 1.2 13:17 1.3 13:21 1.3 13:25 1.4 13 :29 1.5 13:33 1.6 13:37 1.7 13 :41 1.9 13 :45 2.0 13 :49 2. 1 13:53 2.3 13:57 2.4 14:01 2 .5 14 :05 2.7 14 :09 2.9 14 :13 3 .0 14 :17 3.2 14 :21 3.4 14 :25 3 . 7 14:29 4.7 14 :33 7.5 14:37 11.4 14 :41 15.0 14 :45 19.5 14 :49 28.0 14:53 38.8 14 :57 Gill. 15:01 43.2 15:05 31.6 15:09 19.1 15:13 12.7 15:17 9.4 15:21 7.4 15:25 6.2 15:29 5.6 15:33 5.2 15:37 4.9 15:41 4.6 15:45 4.3 15:49 4 . 1 15:53 3 . 7 15:57 3.5 16:01 Continued on next page Flow cfs 3.4 3.2 3.0 2.9 2.8 2.7 2.6 2.5 2.4 2 .4 2.4 2.3 2 .3 2 .3 2 .3 2.3 2 .3 2 .3 2 .3 2 .2 2.2 2.1 2.1 2.1 2.1 2.1 2.0 2.0 2.0 2 .0 2.0 2.0 2 .0 2 .0 1.9 1.9 1.8 1 .8 1.8 1.6 1.3 1.3 1.2 1. 1 1.3 ontinued from previous page 16:05 1.2 16:41 0.5 17: 17 0.5 17:53 0.2 16:09 1.1 16:45 0.5 17:21 0.4 17:57 0.2 16:13 1.2 16:49 0.5 17:25 0.4 18:01 0.2 16:17 1.1 16:53 0.5 17:29 0.4 18 :05 0.2 16:21 0.7 16:57 0.5 17:33 0.3 18:09 0.2 16:25 0.5 17:01 0.5 17:37 0.3 18:13 0.2 16:29 0.5 17:05 0.5 17:41 0.2 18: 17 0 .1 16:33 0.5 17:09 0.5 17:45 0.2 18:21 0 .0 16:37 0.5 17: 13 0 .5 17:49 0.2 18:25 0.0 Volune of runoff = 2.91 ac. ft. Depth of runoff = 6.64 in. File Name -CS FIRE STATION HYDROS roj. Leader DEB Client PSA Date 11/13/95 Job 95-324 Misc. Note -CS FIRE STATION HYDROS 20 Type SCS Desc. EXISTING A+B 100 YR Area 5.3 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 3:49 3:53 3:57 4:01 4:05 4:09 4:13 4: 17 4:21 4:25 4:29 4:33 4:37 4:41 4:45 4:49 4:53 4:57 5:01 5:05 5:09 5:13 5: 17 5:21 5:25 5:29 5:33 5:37 5:41 5:45 5:49 5:53 5:57 6:01 6:05 6:09 6: 13 6: 17 6:21 6:25 6:29 6:33 6:37 6:41 6:45 Flow cfs 0.0 0.0 0.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.2 0 .2 0.2 0.2 0.2 0 .2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Time hr:min 6:49 6:53 6:57 7:01 7:05 7:09 7:13 7: 17 7:21 7:25 7 :29 7:33 7:37 7:41 7:45 7:49 7:53 7:57 8:01 8:05 8:09 8: 13 8: 17 8:21 8:25 8:29 8:33 8:37 8:41 8:45 8:49 8:53 8:57 9:01 9:05 9:09 9: 13 9: 17 9:21 9:25 9:29 9:33 9:37 9:41 9:45 Flow cfs 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0 .5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.7 0.7 0.7 0.7 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.9 1.0 1.0 1.0 1. 1 1 . 1 1.1 1.1 1.1 1.2 Time hr:min 9:49 9:53 9:57 10:01 10:05 10:09 10: 13 10: 17 10:21 10:25 10:29 10:33 10:37 10:41 10:45 10:49 10:53 10:57 11 :01 11 :05 11:09 11: 13 11: 17 11: 21 11 :25 11 :29 11 :33 11:37 11 :41 11:45 11 :49 11:53 11 :57 12:01 12:05 12:09 12:13 12: 17 12:21 12:25 12:29 12:33 12:37 12:41 12:45 Freq. 100.0 yrs CN 80 Len 24 hrs Precip. 11.00 Flow cfs Time hr:min 1.2 12:49 1.2 12:53 1.3 12:57 1.3 13:01 1.3 13 :05 1.3 13:09 1.4 13:13 1.4 13:17 1.5 13:21 1.6 13:25 1. 7 13 :29 1.8 13:33 1.9 13:37 2. 1 13:41 2.3 13:45 2.4 13:49 2 .5 13:53 2. 7 13:57 2.8 14:01 2.9 14:05 3.1 14:09 3.3 14:13 3.5 14:17 3.8 14:21 4.1 14:25 4.4 14:29 5.5 14:33 8 .7 14:37 13.3 14:41 17.4 14:45 22.6 14:49 32.3 14:53 44.5 14:57 ~ 15 :01 49.5 15:05 36.3 15 :09 21.9 15 :1 3 14.6 15:17 10.8 15:21 8 .4 15: 25 7.1 15:29 6.3 15:33 5.9 15:37 5.5 15:41 5.2 15:45 Continued on next page Flow cfs 4.9 4.7 4.3 4.0 3.9 3.7 3.4 3.3 3.2 3.0 2.9 2.8 2 .8 2.8 2 .7 2.7 2.6 2.6 2.6 2.6 2.6 2.6 2.5 2.5 2 .5 2.5 2.5 2.4 2.4 2.3 2.3 2.3 2.3 2.3 2.3 2.2 2.2 2 .2 1.9 1.6 1.6 1.3 1.4 1.5 1.3 :ontinued from previous page 15:49 1.4 16:21 0.6 16:53 0.6 17:25 0.2 15:53 1.5 16:25 0.6 16:57 0.6 17:29 0.3 15:57 1.3 16:29 0.6 17:01 0.6 17:33 0.3 16:01 1.3 16:33 0.6 17:05 0.5 17:37 0 .2 16:05 1.5 16:37 0.6 17:09 0 .4 17:41 0.3 16:09 1.0 16:41 0.6 17:13 0.2 17:45 0.3 16: 13 0.7 16:45 0.6 17:17 0.3 17:49 0.2 16:17 0.6 16:49 0.6 17:21 0.3 17:53 0.1 Vollllle of runoff = 3.33 ac. ft. Depth of runoff = 7.60 in. Continued from previous page 15:48 0.7 16:24 0.6 17:00 0.5 17:36 0.2 15:52 0.7 16:28 0.6 17:04 0.5 17:40 0.2 15:56 0.7 16:32 0.6 17:08 0.5 17:44 0 .3 16:00 0.7 16:36 0.6 17: 12 0.4 17:48 0.2 16:04 0.7 16:40 0.6 17: 16 0 .3 17:52 0.2 16:08 0.6 16:44 0.6 17:20 0.3 17 :56 0. 1 16:12 0.6 16:48 0.6 17:24 0.2 18:00 0 .0 16: 16 0.6 16:52 0.6 17:28 0.2 18 :04 0.0 16:20 0.6 16:56 0.6 17:32 0.3 18 :08 0.0 Voll.Ille of runoff = 1.84 ac. ft. Depth of runoff = 4.21 in. Appendix E Runoff Calculations (Hydrographs) A(EX)+B(DEV) File Name -cs FIRE STATION HYDROS roj. Leader DEB Client PSA Date 11/13/95 Job 95-324 Misc. Note -CS FIRE STATION HYDROS 17 Type SCS Desc. A(EX)+B(DEV) 10 YR rea 5.3 ac. Time of Concent. 10 min. torm Dist Type II Time hr:min 3:00 3:04 3:08 3:12 3:16 3:20 3:24 3:28 3:32 3:36 3:40 3:44 3:48 3:52 3:56 4:00 4:04 4:08 4:12 4: 16 4:20 4:24 4:28 4:32 4 :36 4:40 4:44 4:48 4:52 4:56 5:00 5:04 5:08 5: 12 5: 16 5:20 5:24 5:28 5:32 5:36 5:40 5:44 5:48 5:52 5:56 Flow cfs 0.0 0.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0. 1 0. 1 0.1 0.1 0. 1 o. 1 0.1 0. 1 0. 1 0 .1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0 .1 0.2 0.2 0.2 0.2 0.2 Time hr:min 6:00 6:04 6:08 6:12 6:16 6:20 6:24 6:28 6:32 6:36 6:40 6:44 6:48 6:52 6:56 7:00 7:04 7:08 7: 12 7:16 7:20 7:24 7:28 7:32 7:36 7:40 7:44 7:48 7:52 7:56 8:00 8:04 8:08 8 :12 8: 16 8:20 8:24 8 :28 8:32 8:36 8:40 8:44 8:48 8:52 8:56 Flow cfs 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0 .4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0 .6 0.6 0.6 0.6 Time hr:min 9:00 9:04 9:08 9: 12 9: 16 9:20 9:24 9:28 9:32 9 :36 9:40 9 :44 9:48 9:52 9:56 10 :00 10 :04 10:08 10: 12 10: 16 10:20 10:24 10:28 10:32 10 :36 10:40 10:44 10:48 10:52 10:56 11:00 11:04 11 :08 11 : 12 11: 16 11:20 11:24 11:28 11:32 11:36 11:40 11:44 11:48 11 :52 11:56 Freq. 10.0 yrs CN 87 Len 24 hrs Precip. 7.40 Flow cfs 0.6 0.6 0.6 0.7 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0 .9 0.9 0.9 1.0 1.0 1.0 1.0 1.0 1. 1 1. 2 1. 2 1.3 1.3 1. 5 1.6 1.7 1.8 1.9 2.0 2. 1 2.2 2.3 2.4 2.5 2.8 3 .0 3 .4 5 .4 8 .6 11.3 14.5 20.6 28.6 Time hr:min 12:00 12:04 12:08 12: 12 12: 16 12:20 12:24 12:28 12:32 12:36 12 :40 12:44 12:48 12:52 12:56 13 :00 13:04 13:08 13: 12 13: 16 13 :20 13:24 13 :28 13:32 13:36 13:40 13 :44 13:48 13 :52 13:56 14:00 14:04 14 :08 14: 12 14: 16 14:20 14 :24 14:28 14:32 14 :36 14:40 14:44 14:48 14:52 14:56 Continued on next page Flow cfs 34.6 ~ 27.5 17.3 10.6 7.8 6.1 5.0 4.4 4.1 3 .8 3.6 3.4 3.2 3 .0 2.8 2.6 2.5 2.4 2.3 2.2 2.1 2.0 2.0 1.9 1.9 1.9 1.8 1. 7 1.6 1.4 1.4 1.5 1.4 1.4 1.4 1.2 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 ontinued from previous page 15:00 0.9 15:36 0.9 16:12 0.8 16:48 0.4 15:04 0.9 15:40 0.9 16: 16 0.8 16:52 0.3 15:08 0.9 15:44 0.8 16:20 0.8 16:56 0.3 15: 12 0.9 15:48 0.8 16:24 0.7 17:00 0.4 15:16 0.9 15:52 0.8 16:28 0.7 17:04 0.3 15:20 0.9 15:56 0.8 16:32 0.7 17:08 0.3 15:24 0.9 16:00 0.8 16:36 0.5 17: 12 0.3 15:28 0.9 16:04 0.8 16:40 0.3 17: 16 0. 1 15:32 0.9 16:08 0.8 16:44 0.4 17:20 0.0 Volume of runoff = 2.25 ac. ft. Depth of runoff = 5. 12 in. -------------------------------------------------------------------------------- File Name -CS FIRE STATION HYDROS Date 11I13/95 Proj. Leader DEB Client PSA Job 95 -324 Misc. Note -CS FIRE STATION HYDROS -------------------------------------------------------------------------------- 18 Type SCS Desc. ACEX)+BCDEV) 25 YR Area 5.3 ac. Time of Concent. 10 min. Freq. 25.0 yrs CN 87 Storm Dist Type II Len 24 hrs Precip. 8 .80 -------------------------------------------------------------------------------- Time Flow Time Flow Time Flow Time Flow hr:min cfs hr:min cfs hr:min cfs hr:min cfs ------------------------------------------------------------------------------- 2:21 0.0 5 :21 0 .3 8:21 0.6 11: 21 3.3 2:25 0.0 5:25 0.3 8:25 0.7 11 :25 3.6 2:29 0.1 5:29 0.3 8:29 0.8 11:29 3.9 2:33 0.1 5:33 0.3 8:33 0.8 11:33 4.7 2:37 0.1 5:37 0.3 8:37 0.8 11 :37 7.5 2:41 0.1 5:41 0.3 8:41 0.8 11 :41 11.6 2:45 0.1 5:45 0.3 8:45 0.8 11:45 14.8 2:49 0.1 5:49 0.3 8:49 0.8 11:49 19.1 2:53 0.1 5:53 0.3 8:53 0.8 11:53 27 .4 2:57 0.1 5:57 0 .3 8:57 0.8 11:57 ~ .. 3:0 1 0.1 6:01 0.3 9:01 0.8 12:01 3:05 0.1 6:05 0.3 9:05 0.8 12:05 40.7 3:09 0.1 6:09 0.3 9:09 0.9 12:09 30.3 3: 13 0.1 6:13 0.3 9: 13 0.9 12: 13 18 .5 3: 17 0. 1 6: 17 0 .4 9: 17 1.0 12: 17 11.8 3:21 0.1 6:21 0.4 9:21 1.0 12:21 8 .9 3:25 0.1 6:25 0 .5 9:25 1.0 12:25 7.0 3:29 0.1 6:29 0.5 9:29 1.0 12:29 5.8 3:33 0.1 6:33 0.5 9:33 1.0 12:33 5.3 3:37 0.1 6:37 0 .5 9:37 1.0 12:37 4 .9 3:41 0.1 6:41 0.5 9:41 1.1 12:41 4.5 3:45 0.1 6:45 0.5 9 :45 1. 1 12:45 4 .3 3:49 0.1 6:49 0.5 9:49 1. 1 12:49 4.1 3:53 0. 1 6:53 0.5 9:53 1. 1 12:53 3.8 3:57 0.1 6:57 0.5 9:57 1 . 2 12:57 3 .5 4:01 0.1 7:01 0.5 10:01 1.2 13:01 3.3 4:05 0.1 7:05 0.5 10:05 1.3 13:05 3. 1 4:09 0.1 7:09 0.5 10:09 1.3 13:09 2.9 4:13 0.1 7:13 0.5 10: 13 1.3 13: 13 2.7 4:17 0 .1 7:17 0.5 10: 17 1.3 13: 17 2.6 4:21 0.1 7:21 0.5 10:21 1.4 13:21 2.5 4:25 0.2 7:25 0.5 10:25 1. 5 13:25 2 .4 4:29 0.2 7:29 0.5 10:29 1.6 13:29 2 .4 4:33 0.2 7:33 0.5 10:33 1.6 13 :33 2.3 4:37 0.2 7:37 0.5 10 :37 1.8 13:37 2.2 4:41 0.2 7:41 0.5 10:41 1.9 13:41 1.8 4:45 0.3 7:45 0.5 10:45 2.0 13:45 1. 7 4:49 0.3 7:49 0.5 10:49 2. 1 13:49 1.9 4:53 0.3 7:53 0.6 10:53 2.3 13:53 1. 7 4:57 0.3 7:57 0.6 10:57 2 .4 13:57 1.7 5:01 0.3 8:01 0.6 11: 01 2.5 14 :01 1.8 5:05 0.3 8:05 0.6 11 :05 2.7 14:05 1.5 5:09 0.3 8:09 0.6 11:09 2.9 14:09 1.3 5: 13 0.3 8:13 0.6 11: 13 3.0 14: 13 1.3 5:17 0.3 8 : 17 0.6 11: 17 3.1 14: 17 1.3 Continued on next page ontinued from previous page 14:21 1.3 14:57 1.2 15:33 1.1 16:09 0.7 14:25 1.3 15:01 1.2 15:37 1.0 16:13 0.4 14:29 1.3 15:05 1.1 15:41 1.0 16: 17 0.4 14:33 1.2 15:09 1.1 15:45 1.0 16:21 0.5 14:37 1.2 15: 13 1.1 15:49 1.0 16:25 0.4 14:41 1.2 15: 17 1.1 15:53 1.0 16:29 0.4 14:45 1.2 15:21 1.1 15:57 1.0 16:33 0.5 14:49 1.2 15:25 1.1 16:01 0.9 16:37 0.4 14:53 1.2 15:29 1. 1 16:05 0.9 16:41 0.1 Voll.Ille of runoff = 2.72 ac. ft. Oepth of runoff = 6.21 in. File Name. cs FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 11 /13/95 Job 95·324 Misc. Note -CS FIRE STATION HYDROS 19 Type SCS Desc. A(EX)+BCDEV) 50 YR Area 5.3 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 2:00 2:04 2:08 2:12 2: 16 2:20 2:24 2:28 2:32 2:36 2:40 2:44 2:48 2:52 2:56 3:00 3:04 3:08 3: 12 3:16 3:20 3:24 3:28 3:32 3:36 3:40 3:44 3:48 3:52 3:56 4:00 4:04 4:08 4: 12 4: 16 4:20 4:24 4:28 4:32 4:36 4:40 4:44 4:48 4:52 4:56 Flow cfs 0.0 0.0 0 .1 0.1 0 .1 0.1 0. 1 0.1 0.1 0 .1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 o. 1 0.1 0.1 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Time hr:min 5:00 5:04 5:08 5: 12 5: 16 5:20 5:24 5:28 5:32 5:36 5:40 5:44 5:48 5:52 5:56 6:00 6:04 6:08 6:12 6: 16 6:20 6:24 6:28 6:32 6:36 6:40 6:44 6:48 6:52 6:56 7:00 7:04 7:08 7:12 7: 16 7:20 7:24 7:28 7:32 7:36 7:40 7:44 7:48 7:52 7:56 Flow cfs 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 Time hr:min 8:00 8:04 8:08 8:12 8:16 8:20 8:24 8:28 8:32 8:36 8:40 8:44 8:48 8:52 8:56 9:00 9:04 9:08 9: 12 9:16 9:20 9:24 9:28 9:32 9:36 9:40 9:44 9:48 9:52 9:56 10:00 10:04 10:08 10 : 12 10: 16 10:20 10:24 10:28 10:32 10:36 10:40 10:44 10:48 10:52 10:56 Freq. 50.0 yrs CN 87 Len 24 hrs Precip. 9.80 Flow cfs 0.6 0.6 0.7 0.7 0.8 0.8 0.8 0.9 0.9 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1. 0 1. 1 1.1 1.1 1.1 1.2 1.2 1.3 1.3 1.3 1.4 1.4 1.4 1.4 1.4 1. 5 1.6 1.6 1. 7 1.8 1.9 2.0 2.2 2.3 2.5 2 .6 2.8 Time hr:min 11:00 11:04 11:08 11: 12 11:16 11 :20 11 :24 11 :28 11 :32 11 :36 11 :40 11 :44 11 :48 11:52 11:56 12:00 12:04 12:08 12: 12 12: 16 12:20 12:24 12:28 12:32 12:36 12:40 12 :44 12:48 12:52 12:56 13:00 13:04 13:08 13:12 13: 16 13:20 13:24 13:28 13 :32 13:36 13:40 13 :44 13:48 13:52 13:56 Continued on next page Flow cfs 2.9 3.0 3.2 3.4 3.6 3.7 4.0 4.3 5.0 7.8 12.4 16. 1 20.5 29 .0 ~ 37.0 23 .1 14 . 1 10.5 8.2 6.6 5 .9 5 .5 5 . 1 4 .8 4.6 4.3 4.0 3.7 3.5 3 .3 3 . 1 3.0 2.9 2.9 2.8 2.7 2.5 2. 1 2.0 2. 1 2 . 1 1. 7 ontinued from previous page 14:00 1.5 14:36 1.4 15:12 1.3 15:48 0.7 14:04 1.5 14:40 1.4 15: 16 1.3 15:52 0.6 14:08 1.5 14:44 1.4 15:20 1.2 15:56 0.5 14: 12 1.5 14:48 1.3 15:24 1.2 16:00 0 .7 14: 16 1.5 14:52 1.3 15:28 1.2 16:04 0.6 14:20 1.4 14:56 1.3 15:32 1.2 16:08 0.5 14:24 1.4 15:00 1.3 15 :36 1.2 16:12 0.6 14:28 1.4 15:04 1.3 15:40 1.0 16: 16 0.5 14:32 1.4 15:08 1.3 15:44 0.8 16:20 0.2 Volll!le of runoff = 3.06 ac. ft. Depth of runoff = 6.97 in. File Name -CS FIRE STATION HYDROS roj. Leader DEB Client PSA Date 11/13/95 Job 95-324 Misc. Note -CS FIRE STATION HYDROS 20 Type SCS Desc. ACEX)+BCDEV) 100 YR rea 5.3 ac. Time of Concent. 10 min. torm Dist Type II Time hr:min 1 :45 1 :49 1 :53 1 :57 2:01 2:05 2:09 2:13 2: 17 2:21 2:25 2:29 2:33 2:37 2:41 2:45 2:49 2:53 2:57 3:01 3:05 3:09 3: 13 3:17 3:21 3:25 3:29 3:33 3:37 3:41 3:45 3:49 3:53 3:57 4:01 4:05 4:09 4: 13 4:17 4:21 4:25 4:29 4:33 4:37 4:41 Flow cfs 0.0 0.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0 .1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0 .3 0.3 0.3 0.3 0.3 Time hr:min 4:45 4:49 4:53 4:57 5:01 5:05 5:09 5: 13 5: 17 5:21 5:25 5:29 5:33 5:37 5:41 5:45 5:49 5:53 5:57 6:01 6:05 6:09 6:13 6: 17 6:21 6:25 6:29 6:33 6:37 6:41 6:45 6:49 6:53 6:57 7:01 7:05 7:09 7 : 13 7:17 7:21 7:25 7:29 7:33 7:37 7:41 Flow cfs 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.8 0.8 0.8 0.8 0.8 0.8 0.8 Time hr:min 7 :45 7:49 7:53 7:57 8:01 8:05 8:09 8: 13 8:17 8:21 8:25 8:29 8:33 8:37 8:41 8:45 8:49 8:53 8:57 9:01 9:05 9:09 9:13 9: 17 9:21 9:25 9:29 9:33 9:37 9:41 9:45 9:49 9:53 9:57 10:01 10:05 10:09 10: 13 10: 17 10:21 10:25 10 :29 10:33 10:37 10:41 Freq. 100.0 yrs CN 87 Len 24 hrs Precip. 11.00 Flow cfs 0.8 0.8 0 .8 0.8 0.8 0.8 0.8 0.8 0 .9 0 .9 1.0 1.0 1.1 1. 1 1. 1 1.1 1.1 1.1 1. 1 1.1 1.2 1.2 1.3 1.3 1.3 1.4 1.4 1.4 1.4 1.5 1.5 1.6 1.6 1.6 1.6 1.6 1. 7 1.8 1.8 1.9 2.0 2. 1 2.2 2.4 2.6 Time hr:min 10:45 10:49 10:53 10:57 11: 01 11:05 11:09 11:13 11: 17 11: 21 11 :25 11:29 11 :33 11 :37 11 :41 11:45 11:49 11 :53 11:57 12:01 12 :05 12 :09 12: 13 12: 17 12 :21 12:25 12:29 12:33 12:37 12:41 12:45 12:49 12:53 12:57 13:01 13:05 13:09 13:13 13:17 13:21 13:25 13:29 13:33 13:37 13:41 Continued on next page Flow cfs 2.8 2.9 3.0 3.2 3.4 3.5 3.8 4.0 4.1 4.4 4.7 5 .0 6.2 9.8 14 .9 19 .3 24.7 34 .7 47.5 ~ 52.6 38 .6 23 .3 15.4 11 .3 8 .8 7 .4 6.6 6.1 5.7 5.4 5.1 4.8 4.3 3.8 3.6 3 .5 3.3 3.2 3. 1 2.9 2.7 2.3 2.3 2.4 Continued from previous page 13:45 2.2 14:25 1.6 15:05 1.5 15:45 0.6 13:49 1.9 14:29 1.6 15:09 1.4 15:49 0.7 13:53 1. 7 14:33 1.6 15:13 1.4 15:53 0.8 13:57 1.7 14:37 1.6 15: 17 1.4 15 :57 0.6 14:01 1.7 14:41 1.6 15:21 1.1 16:01 0.6 14:05 1.7 14:45 1.5 15:25 0.9 16:05 0.8 14:09 1. 7 14:49 1.5 15:29 0.9 16:09 0.3 14: 13 1. 7 14:53 1.5 15:33 0.6 16: 13 0 .0 14: 17 1.6 14:57 1. 5 15:37 0.7 16: 17 0.0 14:21 1.6 15:01 1.5 15:41 0.8 16:21 0.0 Voll.Ille of runoff = 3.45 ac. ft. Depth of runoff = 7.87 in. - Appendix F NPDES Permit Application FedeQ] Register/ Vol. 57, No.175 /Wednesday, September 9, 1992 /Notices 41339 APPENOIX C-Notice of Intent and Instructions ------- Form Appr0¥ed . See ReverM tor lnetNctlona o.. .... __ --._,_..._,...,, .. -· --.,. EPA ' ...... ._ ......... -...... N'6EI -c", -Neta of lnt.tnt (NP.I) tor'Stor::"o~ac=M Ataoc;illted with lndustrlal f!ORM - --Activity Under th• NPDES oener11 Pennlt ----------- ~~A.I---~ natlc::t i.t.h 1*1y ~~~I of ,_bm ~ m ~ aJlholtpd by a NPOES l*mll "*'.ied b 1Dm =-~ ca=:l.:9'""1& ~c~l:~~~~~~~~bN~V"~'tf--~~"-~_.., --- I .~ OpnlDr l11bmlllai1 ~: I ·I x ' z ' j I I k lo .e .l I I " •. ~· I -I J aL ' I t ! I I I I I I I I Phone : I I I I I I I I I I I - I I S-..of D ~: ac U I -I I I I I J __ J l w 'ae I !d ! ! A I as1we j I I '_J oel -' I ~ I I I ~IOperU>r : ' - City : I I ~,Le & ~I I I I ""'!!~ I l I I_ • I -1. d .. ..I I I I I l I Sl1191 : W,_J ZJP Code : I I I I I I . I I I I I - --------~ II . 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Box 9960 Telephone No.: 764-3660 contact: Brett McCulley Address: 12 40 4 Park Central Dr, Ste 2 40 Telephone No.: Dallas. 75251-1819 (214-239-8827 Address: Telephone No.: Date Application Filed: ~c:xv. 15, 95 Approved: Application is hereby made for the following development: Construction of pr6posed fire station # 3 and ass6ciated parking lot and improvements as shown on site plan Attached as part of this application: Application Fee ~---x ___ Drainage Plan with supporting documentation: two copies of each Other: ACKNOWLEDGEMENTS: I' .....;.."---------------' as owner, hereby acknowledge or affirm that: The above Drainage Plan and supporting documents complies with the requirements of Ordinance No. Owner Date .. ~~ Urban Design Group Steve Homeyer, Project Engineer City of College Station P .O . Box 9960 College Station, Texas 77842-9960 Re : Fire Station # 1 Dea:r Steve, February 29 , 1996 Attached please find my copy of the original drainage report (first submittal) as requested ._ In loqkin at pagt. 6 , the increase in runoff due to the construction of the fire station is 3. 3 cfs . Those pencil mar s are - notes I made on the report during a conversation with you regarding questions you had on the drainage report. Also enclosed is a copy of the latest drainage submittal , which you returned to us. You may keep for your records . As mentioned in our meeting earlier today, I will be resubmitting the drainage report with revisions as directed in your last redlined report . We appreciate your expedience in reviewing the plans today in order for Brett to proceed with advertising tomorrow . Sincerely, fe;J~o<' ~ Deborah L. Keating, P .E . Partner, Urban Design Group cc : Dirk Dalhouser, PSA Brett McCully, Assistant City Engineer Post Office Box 10153 C o 11 e g e S t a t i o n , T e x a s 7 7 8 4 2 • 4 0 9 • 6 9 6 • 9 6 5 3 • UDG Urban Design Group P .O . Box 10153 College Station, Texas 77842 Phone: (409) 696-9653 TRANSMI TTAL LETTER TO : __ s_h_i_r _l_e_y_V_o_l_k ______ _ FROM : Debbie Keating Development Services RE : Fire Station # 3 Site Plan DATE : Nov. 22, 1995 please find : }(! attached 0 as requested 0 original sent via mail 0 for your information 0 plans 0 for your files 0 specifications 0 for your approval 0 other 0 for your review COMMENTS : Attached please find the submittal for the fire station, -~e are submitting on behalf of Brett. Please remember we (UDG) are not the applicant on this project. Any questions about the c i:•mpleteness of submittal should be directed towards Brett. Thank OU. ADDENDUMT DRAINAGE REP. COLLEGE STATION F This report reflects additional drainage information to supplement the previously submitted drainage report for the College Station Fire Station #3 . This report includes calculations for detention within the circular portion of the proposed parking lot. For this report, it was assumed the circular parking area is the final parking configuration, and detention within the circular area is desirable . New hydrographs were computed that reflect the actual amount of area draining to the proposed detention area . The new hydrographs were then routed through the proposed detention pond and compared to the original (existing) hydro graphs previously submitted . The storage capacity of the proposed detention pond is shown in the following Table 1. These storage volumes reflect the proposed contours shown on the site plan . Table 1. Storage Capacity/Detention Pond ELEVATION VOLUME 290 .5 0 ac-ft 291.0 .00086 ac-ft 292 .0 .01916 ac-ft 293 .0 .06698 ac-ft 294 .0 ------------- The outlet structure for the pond is a 12 " x 14 " grate inlet situated in the center of the circular area .. The grate inlet permits low flows and irrigation runoff to exit the parking lot , and meters larger flow volumes during higher frequency events . The finished floor elevation of the building is set at 294 .0 (more than 1.0 above the 100 yr storm through the pond). Storage within the pond up to elevation 293 will be intercepted by 5 ' and 10 ' inlets located within the curb line of the most westerly drive to the property. Although there is more than the required freeboard within the parking lot , the inlets provide an alternative outlet should the grate inlet and /or underground storm sewer become clogged . Once captured within the proposed 15 " and 18 " storm sewers, the runoff is carried to Wolf Pen Creek via the existing 30" RCP along the south side of Holleman . Although the proposed detention pond is located upstream of the building , the storage capacity of the pond is sufficient to offset the increase due to the construction of the building and parking drives/areas . Existing and proposed contours have been provided on the site plan to depict the cut/fill areas necessary . Figure 2 (attached) shows the revised drainage areas . Page 2 Conclusion : Based upon the current layout of the improvements, the parking area can be utilized as detention to meet the criteria listed in the drainage ordinance . File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 11/22/95 Job 95 -324 Misc. Note -cs FIRE STATION HYDROS 3 Type SCS Desc. NA EX 1DO YR Area 0.3 ac. Time of Concent . 10 min. Storm Dist Type II Time hr:min 5:27 5:30 5:33 5:36 5:39 5:42 5:45 5:48 5:51 5:54 5:57 6:00 6:03 6:06 6:09 6: 12 6: 15 6:18 6:21 6:24 6:27 6:30 6:33 6:36 6 :39 6:42 6:45 6:48 6:51 6:54 6:57 7:00 7:03 7:06 7:09 7: 12 7: 15 7:18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 Flow cfs 0.0 0 .0 0.0 0.0 0.0 0.0 0.0 0 .0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 .0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Time hr:min 7:42 7:45 7:48 7:51 7:54 7:57 8:00 8:03 8:06 8:09 8: 12 8: 15 8: 18 8:21 8:24 8:27 8:30 8:33 8:36 8:39 8:42 8:45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9: 12 9: 15 9:18 9:21 9:24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9:51 9:54 Flow cfs 0.0 0.0 0.0 0.0 0.0 0.0 0 .0 0.0 0.0 0.0 0 .0 0.0 0.0 0 .0 0 .0 0.0 0 .0 0.0 0.0 0.0 0 .0 0.0 0 .0 0 .0 0.0 0.0 0.0 0.0 0.0 0.0 0 .0 0.0 0.0 0.0 0 .0 0.0 0.0 0 .0 0.0 0 . 1 0. 1 0. 1 0. 1 0. 1 0. 1 Time hr:min 9:57 10:00 10:03 10:06 10:09 10: 12 10: 15 10:18 10:21 10:24 10:27 10:30 10:33 10:36 10:39 10:42 10:45 10:48 10:51 10:54 10 :57 11 :00 11 :03 11 :06 11 :09 11: 12 11: 15 11: 18 11: 21 11:24 11 :27 11:30 11:33 11:36 11:39 11 :42 11 :45 11 :48 11 :51 11 :54 11 :57 12:00 12:03 12:06 12:09 Freq. 100.0 yrs CN 75 Len 24 hr s Pr ecip. 11.00 Flow cfs 0. 1 0. 1 0 . 1 0 . 1 0. 1 0. 1 0. 1 0. 1 0. 1 o. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 o. 1 0. 1 0. 1 0. 1 0. 1 0 .2 0.2 0.2 0.2 0 .2 0.2 0.2 0.2 0.2 0.2 0 .4 0.6 0.8 0.9 1 .0 1 .4 2.0 2.6 2.9 3. 1 2.7 1. 9 Ti me hr:min 12 : 12 12: 15 12: 18 12:21 12:24 12:27 12:30 12:33 12:36 12:39 12:42 12:45 12:48 12:51 12:54 12:57 13 :00 13 :03 13 :06 13:09 13: 12 13: 15 13:18 13:21 13:24 13:27 13:30 13 :33 13:36 13:39 13:42 13 :45 13:48 13:51 13:54 13:57 14:00 14:03 14:06 14:09 14: 12 14 :15 14: 18 14 :21 14 :24 Continued on nex t page Flow cf s 1. 2 0.9 0.7 0.6 0.5 0.4 0.4 0.4 0.3 0 .3 0.3 0 .3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0 .2 0.2 0 .2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0. 1 0. 1 0 . 1 0. 1 0. 1 0 . 1 0 . 1 0. 1 0. 1 Continued from previous page 14:27 0 . 1 15:21 0.1 16: 15 0.1 17:09 0. 1 14:30 0. 1 15:24 0.1 16: 18 0 .1 17:12 0 .0 14:33 0.1 15:27 0 . 1 16:21 0.1 17: 15 0.0 14:36 0.1 15:30 0.1 16:24 0.1 17:18 0. 1 14:39 0.1 15:33 0 .1 16:27 0 .1 17:21 0. 1 14:42 0.1 15:36 0 . 1 16:30 0. 1 17:24 0 .0 14:45 0.1 15:39 0.1 16:33 0 .1 17:27 0.0 14:48 0.1 15:42 0.1 16:36 0.1 17:30 0. 1 14:51 0.1 15:45 0.1 16:39 0.1 17:33 0. 1 14:54 0.1 15:48 0 . 1 16:42 0.1 17 :36 0.0 14:57 0. 1 15:51 0.1 16:45 0 . 1 17:39 0.0 15:00 0.1 15:54 0. 1 16:48 0.1 17:42 0. 1 15 :03 0.1 15:57 0. 1 16:51 0 .1 17:45 0.1 15:06 0.1 16:00 0.1 16:54 0 . 1 17:48 0.0 15:09 0. 1 16:03 0.1 16:57 0.1 17:51 0.0 15: 12 0.1 16:06 0.1 17:00 0.1 17:54 0. 1 15: 15 0.1 16:09 0 .1 17:03 0. 1 15: 18 0.1 16: 12 0 .1 17:06 0. 1 Volume of runoff = 0.18 a c. ft. Depth of runoff 6.98 in. File Name -CS FIRE STATION HYDROS Date 11/22/95 Proj. Leader DEB Client PSA Job 95-324 Misc. Note -CS FIRE STATION HYDROS 2 Type SCS Desc. NB DEV 100 YR Area 0.3 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 1:24 1 :27 1 :30 1:33 1:36 1:39 1 :42 1 :45 1:48 1:51 1:54 1 :57 2:00 2:03 2:06 2:09 2: 12 2: 15 2: 18 2:21 2:24 2:27 2:30 2:33 2:36 2:39 2:42 2:45 2:48 2:51 2:54 2:57 3:00 3:03 3:06 3:09 3: 12 3:15 3:18 3:21 3:24 3:27 3:30 3:33 3 :36 Flow cfs 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 o.o 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 .0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Time hr:min 3:39 3:42 3:45 3:48 3:51 3:54 3:57 4:00 4:03 4:06 4:09 4: 12 4: 15 4: 18 4:21 4:24 4:27 4:30 4:33 4:36 4:39 4:42 4:45 4:48 4:51 4:54 4:57 5:00 5:03 5:06 5:09 5: 12 5:15 5: 18 5 :21 5:24 5:27 5:30 5:33 5:36 5:39 5:42 5:45 5:48 5:51 Flow cfs 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 .0 0.0 0.0 0.0 0.0 0 .0 0.0 0.0 0 .0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 .0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Time hr:min 5.:54 5:57 6:00 6:03 6:06 6:09 6: 12 6: 15 6: 18 6:21 6:24 6:27 6:30 6:33 6:36 6:39 6:42 6:45 6:48 6:51 6:54 6:57 7:00 7:03 7:06 7:09 7: 12 7: 15 7: 18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 7:42 7:45 7:48 7:51 7:54 7:57 8:00 8:03 8:06 Freq. 100.0 yrs CN 94 Len 24 hrs Precip. 11.00 Flow cfs 0.0 0.0 0 .0 0.0 0.0 0. 1 0.1 0 .1 0. 1 0.1 0. 1 0. 1 0. 1 0.1 0.1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 o. 1 0.1 Time hr:min 8:09 8: 12 8: 15 8: 18 8:21 8:24 8:27 8:30 8:33 8:36 8:39 8:42 8:45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9: 12 9: 15 9: 18 9:21 9:24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9:51 9:54 9 :57 10:00 10:03 10 :06 10:09 10: 12 10:15 10: 18 10:21 Continued on next page Flow cfs 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0 .1 0. 1 0.1 0 .1 0.1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0.1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0 .1 0.1 0.1 Continued from previous page 10:24 0.2 11:18 0.3 12; 12 1 .5 13:06 0.2 10:27 0.2 11; 21 0.3 12:15 1. 1 13:09 0.2 10:30 0.2 11:24 0.3 12: 18 0.8 13: 12 0.2 10:33 0.2 11:27 0.3 12:21 0.7 13; 15 0.2 10:36 0.2 11:30 0.4 12:24 0.6 13: 18 0.2 10:39 0.2 11:33 0.4 12:27 0.5 13:21 0.2 10:42 0.2 11 :36 0.5 12:30 0.4 13:24 0.2 10:45 0.2 11 :39 0.9 12:33 0.4 13:27 0.2 10:48 0.2 11:42 1 .2 12:36 0.4 13:30 0. 1 10:51 0.2 11:45 1 .3 12:39 0.4 13:33 0. 1 10:54 0.2 11:48 1.4 12:42 0.4 13:36 0.0 10:57 0.2 11; 51 1.8 12:45 0.3 13:39 0.2 11:00 0.2 11:54 2.6 12:48 0.3 13:42 0.1 11:03 0.2 11:57 3.3 12:51 0.3 13:45 0.1 11:06 0.3 12:00 3.7 12:54 0.3 13:48 0.0 11:09 0.3 12:03 3.8 12:57 0.3 13:51 0.2 11; 12 0.3 12:06 3.4 13:00 0.2 11: 15 0.3 12:09 2.4 13:03 0.2 Voll.me of runoff = 0.22 ac. ft. Oepth of runoff 7.84 in. File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Misc. Note -CS FIRE STATION HYDROS 4 Type SCS Desc. NB + NA (100 YR) Date 11/22/95 Job 95-324 Area 0.6 ac. Time of Concent. 10 min. Freq. 100.0 yrs CN 84 Len 24 hrs Precip. 11.00 Storm Dist Type II Time hr:min 5:59 6:04 6:09 6: 14 6: 19 6:24 6:29 6:34 6:39 6:44 6:49 6:54 6:59 7:04 7:09 7: 14 7: 19 7:24 7:29 7:34 7:39 7:44 7:49 7:54 7:59 8:04 8:09 8: 14 8:19 8:24 8:29 8:34 8:39 8:44 Flow cfs 0.0 0.0 0.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0.1 0. 1 0.1 0.1 0. 1 0. 1 0.1 Time hr:min 8:49 8:54 8:59 9:04 9:09 9: 14 9: 19 9:24 9:29 9:34 9:39 9:44 9:49 9:54 9:59 10:04 10:09 10: 14 10: 19 10:24 10:29 10:34 10:39 10:44 10:49 10:54 10:59 11: 04 11 :09 11: 14 11: 19 11 :24 11:29 11 :34 Voll.me of runoff = Flow cfs 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0.2 0.2 0.2 0.2 0 .2 0.2 0 .2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.5 0.5 0.5 0.5 0.8 0.38 ac. ft. Time hr:min 11:39 11:44 11:49 11:54 11:59 12:04 12:09 12:14 12: 19 12:24 12:29 12:34 12:39 12:44 12:49 12:54 12:59 13:04 13:09 13:14 13: 19 13:24 13:29 13:34 13:39 13:44 13:49 13:54 13:59 14:04 14:09 14: 14 14: 19 14:24 Flow cfs 1.4 2.1 2.9 4.5 6.1 6.1 4.3 2.4 1.5 1. 1 0.8 0.7 0.7 0.6 0.6 0.5 0.4 0.4 0.4 0.4 0.4 0.3 0.3 0.2 0.3 0.3 0.2 0.1 0. 1 0. 1 0.1 0.1 0.1 0.1 Time hr:min 14:29 14:34 14:39 14:44 14:49 14:54 14:59 15:04 15:09 15: 14 15: 19 15 :24 15:29 15:34 15:39 15:44 15:49 15:54 15:59 16:04 16:09 16: 14 16: 19 16:24 16:29 16:34 16:39 16:44 16:49 16:54 16:59 17:04 17:09 17:14 Flow cfs 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0. 1 0. 1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0. 1 0. 1 0. 1 0.1 0.1 0.1 0.1 0. 1 0. 1 0 . 1 0. 1 0.0 0.0 Depth of runoff= 7.15 in. File Name -cs FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 11/22/95 Job 95-324 Misc. Note -CS FIRE STATION HYDROS 6 Type scs Desc. NB2 EX 100 YR Area 0.7 ac. Time of Concent . 10 min. Storm Dist Type II Time hr:min 3:45 3:48 3:51 3:54 3:57 4:00 4:03 4:06 4:09 4: 12 4:15 4: 18 4:21 4:24 4:27 4:30 4:33 4:36 4:39 4:42 4:45 4:48 4:51 4:54 4:57 5:00 5:03 5:06 5:09 5: 12 5:15 5: 18 5:21 5:24 5:27 5:30 5:33 5:36 5:39 5:42 5:45 5:48 5:51 5:54 5:57 Flow cfs 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 .0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Time hr:min 6:00 6:03 6:06 6:09 6: 12 6: 15 6: 18 6:21 6:24 6 :27 6:30 6:33 6:36 6:39 6:42 6:45 6:48 6:51 6:54 6:57 7:00 7:03 7:06 7:09 7:12 7:15 7:18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 7:42 7:45 7:48 7:51 7:54 7:57 8:00 8:03 8:06 8:09 8:12 Flow cf s 0.0 0.0 0.0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0 .1 0.1 0. 1 0. 1 0. 1 0. 1 0. 1 0.1 0.1 0.1 0.1 0.1 0 .1 0.1 0.1 0.1 0.1 0. 1 0 .1 0.1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0.1 0. 1 0. 1 Time hr :min 8: 15 8 : 18 8:21 8:24 8:27 8:30 8:33 8:36 8:39 8:42 8:45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9:12 9:15 9: 18 9:21 9 :24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9:51 9:54 9:57 10:00 10:03 10:06 10:09 10: 12 10: 15 10: 18 10:21 10:24 10:27 Freq. 100.0 yrs CN 84 Len 24 hrs Precip. 11.00 Flow cfs 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0 . 1 0. 1 0 .1 0. 1 0. 1 0.1 0. 1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0 .2 0 .2 0.2 0 .2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 Time hr:min 10:30 10:33 10:36 10:39 10:42 10:45 10:48 10:51 10:54 10:57 11 :00 11:03 11:06 11:09 11: 12 11: 15 11:18 11 :21 11 :24 11 :27 11 :30 11 :33 11 :36 11 :39 11 :42 11 :45 11 :48 11 : 51 11 : 54 11:57 12:00 12:03 12:06 12:09 12: 12 12 :15 12: 18 12:21 12 :24 12:27 12:30 12:33 12:36 12 :39 12:42 Continued on nex t page Flow cf s 0 .3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0 .5 0.6 0.6 0.6 0.7 0.7 0.9 1.6 2 .2 2 .6 2.8 3.4 5 .0 6.6 7.4 7.8 7.3 5.3 3.4 2.3 1.8 1. 5 1.3 1 .1 0.9 0.9 0.9 0.8 0.8 Continued from previous page 12:45 0.7 13:39 0.4 14:33 0.3 15:27 0.3 12:48 0.7 13:42 0.4 14:36 0.3 15:30 0.2 12:51 0.7 13:45 0.4 14:39 0.3 15:33 0. 1 12:54 0.6 13:48 0.4 14:42 0.3 15:36 0. 1 12:57 0.6 13:51 0.4 14:45 0.3 15:39 0.3 13:00 0.6 13:54 0.4 14:48 0.3 15:42 0.2 13:03 0.6 13:57 0.4 14:51 0.3 15:45 0.1 13:06 0.5 14:00 0.4 14:54 0.3 15:48 0.0 13:09 0.5 14:03 0.4 14:57 0.3 15:51 0.3 13:12 0.5 14:06 0.4 15:00 0.3 15:54 0.2 13:15 0.5 14:09 0.4 15:03 0.3 15:57 0. 1 13: 18 0.5 14: 12 0.4 15:06 0.3 16:00 0.0 13:21 0.5 14: 15 0 .4 15:09 0.3 16:03 0.3 13:24 0.4 14: 18 0.4 15:12 0.3 16:06 0.2 13:27 0.4 14:21 0.4 15:15 0.3 16:09 0. 1 13:30 0.4 14:24 0.4 15:18 0.3 16:12 0.0 13:33 0.4 14:27 0.4 15:21 0.3 13:36 0.4 14:30 0 .3 15:24 0. 1 Voll.flle of runoff = 0.47 ac. ft. Depth of runoff 7.87 in. File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Misc. Note -CS FIRE STATION HYDROS 5 Type SCS Desc. NB +NA (100 YR) ROUTED Date 11/22/95 Job 95 -324 Area 0.6 ac. Time of Concent. 10 min. Freq. 100.0 yrs CN 84 Len 24 hrs Precip. 11.00 Storm Dist Type II Time hr:min 6:09 6: 14 6: 19 6:24 6:29 6:34 6:39 6:44 6:49 6:54 6:59 7:04 7:09 7:14 7:19 7:24 7:29 7:34 7:39 7:44 7:49 7:54 7:59 8:04 8:09 8: 14 8: 19 8:24 8:29 8:34 8:39 8:44 8:49 Flow cfs 0.0 0.0 0.1 0.0 0.1 0.0 0.1 0.0 0.1 0.0 0. 1 0.0 0. 1 0.0 0.1 0.0 0. 1 0.0 0.1 0.0 0.1 0.0 0. 1 0.0 0.1 0.0 0.1 0.0 0.1 0.0 0.1 0.0 0.1 Time hr:min 8:54 8:59 9:04 9:09 9: 14 9:19 9:24 9:29 9:34 9:39 9:44 9:49 9:54 9:59 10:04 10:09 10: 14 10: 19 10:24 10:29 10:34 10:39 10:44 10:49 10:54 10:59 11 :04 11 :09 11 :14 11: 19 11: 24 11:29 11:34 Voll.Ille of runoff = Flow cfs 0.0 0. 1 0.0 0. 1 0.0 0. 1 0.0 0.1 0.0 0.1 0. 1 0.2 0.1 0.2 0. 1 0.2 0. 1 0.2 0.1 0.2 0.3 0.2 0.3 0.2 0.3 0.2 0.3 0.3 0.5 0.5 0.5 0.5 0.7 0.34 ac. ft . Time hr:min 11:39 11 :44 11:49 11:54 11 :59 12:04 12:09 12: 14 12:19 12:24 12:29 12:34 12:39 12:44 12:49 12:54 12:59 13:04 13:09 13: 14 13: 19 13:24 13:29 13:34 13:39 13:44 13:49 13:54 13:59 14:04 14:09 14:14 14: 19 Flow cfs 1.2 1.4 1.8 2.5 2.9 3.4 3.6 3.6 3.3 3.0 2.7 2.3 1. 7 1.3 0.1 0.8 0.1 0.5 0.2 0 .5 0.2 0 .3 0.2 0.2 0.2 0.3 0.1 0.1 0.0 0.1 0.0 0. 1 0 .0 Time hr:min 14:24 14:29 14:34 14:39 14:44 14:49 14:54 14:59 15:04 15:09 15 : 14 15: 19 15:24 15:29 15:34 15:39 15:44 15:49 15:54 15 :59 16:04 16 :09 16: 14 16: 19 16 :24 16:29 16 :34 16:39 16:44 16 :49 16:54 16 :59 17:04 Flow cfs 0.1 0.0 0.1 0.0 0.1 0.0 0.1 0.0 0.1 0.0 0.1 0.0 0.1 0.0 0.1 0 .0 0 .1 0.0 0. 1 0.0 0.1 0.0 0.1 0.0 0.1 0.0 0.1 0.0 0.1 0.0 0. 1 0.0 0.1 Depth of runoff = 6.30 in. File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Date 11/22/95 Job 95-324 Misc. Note -CS FIRE STATION HYDROS 8 Type SCS Desc. EXISTING NB + NB + NB2 Area 1.4 ac. Time of Concent. 10 min. Storm Dist Type II Time hr:min 5:27 5:30 5:33 5:36 5:39 5:42 5:45 5:48 5:51 5:54 5:57 6:00 6:03 6:06 6:09 6:12 6:15 6: 18 6:21 6:24 6:27 6:30 6:33 6:36 6:39 6:42 6:45 6:48 6:51 6:54 6:57 7:00 7:03 7:06 7:09 7: 12 7: 15 7: 18 7:21 7:24 7:27 7:30 7:33 7:36 7:39 Flow cfs 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0. 1 0.1 0. 1 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Time hr:min 7:42 7:45 7:48 7:51 7:54 7:57 8:00 8:03 8:06 8:09 8:12 8: 15 8:18 8:21 8:24 8:27 8:30 8:33 8:36 8:39 8:42 8:45 8:48 8:51 8:54 8:57 9:00 9:03 9:06 9:09 9: 12 9: 15 9:18 9:21 9:24 9:27 9:30 9:33 9:36 9:39 9:42 9:45 9:48 9:51 9:54 Flow cfs 0. 1 0.1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0.1 0. 1 0. 1 0.1 0 .1 0.1 0. 1 0. 1 0. 1 0. 1 0. 1 0. 1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 Time hr:min 9:57 10:00 10:03 10:06 10:09 10: 12 10:15 10: 18 10:21 10:24 10:27 10:30 10:33 10:36 10:39 10:42 10:45 10:48 10:51 10:54 10:57 11:00 11 :03 11 :06 11:09 11: 12 11: 15 11: 18 11 :21 11:24 11:27 11 :30 11 :33 11:36 11 :39 11:42 11 :45 11:48 11: 51 11:54 11:57 12:00 12:03 12:06 12:09 Freq. 100.0 yrs CN 75 Len 24 hrs Precip. 11.00 Flow cfs 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.7 0.7 0.7 0.8 0 .8 0.8 0.9 1. 0 1.0 1. 1 1.6 2.7 3.6 4.1 4.5 6. 1 9.0 11.4 12.8 13.4 11.8 8.2 Time hr:min 12: 12 12: 15 12: 18 12:21 12:24 12:27 12 :30 12:33 12:36 12:39 12:42 12:45 12:48 12:51 12:54 12:57 13:00 13:03 13:06 13:09 13: 12 13: 15 13 : 18 13:21 13:24 13:27 13:30 13:33 13:36 13:39 13:42 13 :45 13:48 13:51 13:54 13:57 14:00 14:03 14:06 14:09 14: 12 14: 15 14: 18 14:21 14:24 Continued on ne xt page Flow cfs 5.2 3.8 3.0 2.6 2.1 1.8 1. 7 1.6 1.5 1.4 1.3 1.3 1.3 1.2 1 . 1 1 . 1 1.0 1.0 1.0 0.9 0.9 0.8 0 .8 0.8 0.8 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.6 0.6 0.6 0.6 0.6 0.6 0.6 Continued from previous page 14:27 0.6 15:21 0.5 16: 15 0.5 17:09 0 .4 14:30 0.6 15:24 0.5 16: 18 0.5 17:12 0.2 14:33 0.6 15:27 0.5 16:21 0.5 17: 15 0.1 14:36 0.6 15:30 0.5 16:24 0.5 17: 18 0.4 14:39 0.6 15:33 0.5 16:27 0.4 17:21 0.3 14:42 0.6 15:36 0.5 16:30 0.4 17:24 0.2 14:45 0.6 15:39 0.5 16:33 0.4 17:27 0.1 14:48 0.6 15:42 0.5 16:36 0.4 17:30 0.3 14:51 0.6 15:45 0.5 16:39 0.4 17:33 0.2 14:54 0.6 15:48 0.5 16:42 0.4 17:36 0.1 14:57 0.6 15:51 0.5 16:45 0.4 17:39 0.0 15:00 0.6 15:54 0.5 16:48 0.4 17:42 0.3 15:03 0.6 15 :57 0.5 16:51 0.4 17:45 0.2 15:06 0.6 16:00 0.5 16:54 0.4 17:48 0.1 15:09 0.6 16:03 0.5 16:57 0.4 17:51 0.0 15: 12 0.6 16:06 0.5 17:00 0.4 17:54 0.3 15:15 0.5 16:09 0.5 17:03 0.4 15: 18 0.5 16:12 0.5 17:06 0.4 Voll.Ille of runoff = 0.83 ac . ft. Depth of runoff 7.28 in. File Name -CS FIRE STATION HYDROS Proj. Leader DEB Client PSA Misc. Note -CS FIRE STATION HYDROS 7 Type SCS Desc. PROPOSED Date 11/22/95 Job 95-324 Area 1.4 ac. Time of Concent. 10 min. Freq. 100.0 yrs CN 84 Len 24 hrs Precip. 11.00 Storm Dist Type II Time hr:min 6:06 6: 11 6:16 6:21 6:26 6:31 6:36 6:41 6:46 6:51 6:56 7:01 7:06 7:11 7:16 7:21 7:26 7:31 7:36 7:41 7:46 7:51 7:56 8:01 8:06 8: 11 8: 16 8:21 8:26 8:31 8:36 Flow cfs 0.0 0.0 0.1 0.1 0.1 0. 1 0.1 0.1 0.1 0.1 0.1 0. 1 0.1 0. 1 0. 1 0.1 0.1 0.1 0 .1 0.1 0. 1 0.1 0. 1 0. 1 0. 1 0.1 0. 1 0. 1 0.1 0.1 0.1 Time hr:min 8:41 8:46 8:51 8:56 9:01 9:06 9: 11 9:16 9:21 9:26 9:31 9:36 9:41 9:46 9:51 9:56 10:01 10:06 10: 11 10: 16 10:21 10:26 10:31 10:36 10:41 10:46 10:51 10:56 11: 01 11:06 11: 11 Volume of runoff = Flow ·cfs 0.1 0.1 0.1 0.1 0. 1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4 0.5 0.5 0.5 0.5 0 .6 0.6 0.6 0.7 0.8 0.76 ac. ft. Time hr:min 11:16 11: 21 11:26 11 :31 11 :36 11 :41 11 :46 11 : 51 11 :56 12:01 12:06 12: 11 12:16 12:21 12:26 12:31 12:36 12:41 12:46 12:51 12:56 13:01 13:06 13: 11 13: 16 13:21 13:26 13:31 13:36 13:41 13:46 Flow cfs 0.9 1.0 1. 1 1.3 2.0 3.1 4.2 5.9 8.4 10.3 9.9 7.7 5.8 4.7 4.0 3.4 2.9 2.2 1.6 1.1 1.0 0.9 0.8 0.8 0.8 0.7 0.6 0.6 0.6 0.6 0.5 Time hr:min 13:51 13:56 14:01 14:06 14: 11 14: 16 14:21 14:26 14:31 14:36 14:41 14:46 14:51 14:56 15:01 15:06 15:11 15: 16 15:21 15:26 15:31 15:36 15:41 15:46 15:51 15:56 16:01 16:06 16: 11 16: 16 16:21 Flow cfs 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0. 1 0.2 0.2 0.2 0.2 0.1 0.0 0.0 Depth of runoff= 6.73 in. From: To: Date: Subject: Shirley Volk SKuenzel, JDunn, JKee 1/12/96 3:44pm Fire Station #1 The revised site plan for this project is attached to the water & sewer construction plans which are in the plans check room. We only got 2 sets (apparently), and I've given 1 to engineering in the plans check room and have sent 1 down to Tony Michalsky in engineering. The plans came in when I was out on the 8th and were checked into the engineering stuff in the plans check room, and just yesterday I realized that electric had not gotten a copy to review, and then low and behold, I notice a revised site plan attached! To keep everybody from being confused when this thing comes in attached to the building plans and has an "approved by engineering" stamp on it and planning doesn't know if they've approved it or not, why don't one of you plan to go to the plans check and review it. I'll put a stamp at the bottom where you can sign off as the 1st review for conformance. CC: VMorgan, SSSmith, SHomeyer