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Home My WebLink About35 Forest Ridge CSISD 04-64' ' TO: The City of College Station, Texas Embracing the Past, Exploring the Future. LegalIJeparhnent P.O. Box 9960 • 1101 Texas Avenue • College Station, TX 77842 • (979) 764-3507 • FAX: (979) 764-3481 www.ci.college-station.tx.us MEMORANDUM FROM: Bridgette George, Asst. Development Review Manager, Development Services Jan Schwartz, Legal Assistant ~ SUBJECT: Utility Easement and TemporWonstruction Easement Timothy J. Crowley -CSISD Off-Site Sanitary Sewerline DATE: February 26, 2004 Attached for your file please find copies of the following: 1. A 0.9894 acre Utility Easement in the Robert Stevenson League, Abstract No. 54, Brazos County, Texas, dated December 18, 2003, from Timothy J. Crowley to the City of College Station, Texas, recorded in Volume 5781, Page 128, of the Official Records of Brazos County, Texas. 2. A 0.9858 Temporary Construction Easement in the Robert Stevenson League, Abstract No. 54, Brazos County, Texas, dated December 18, 2003, from Timothy J. Crowley to the City of College Station, Texas, recorded in Volume 5781, Page 133, of the Official Records of Brazos County, Texas. If you need any additional information, please let me know. JS Attachments Home of Texas A&M University Home of the George Bush Presidential Library and Museum 0 5 /17 /2004 08 :23 FAX 979260356 4 MITC HELL and MO RG AN CO~lP.~NY: jl1, ITCH ELL &../U ORGAN, LLP ENGINEERS & CONSTRUCTORS 511 UNIVERSITY DRIVE E., SUITE 204 COLLEGE STATION, TEXAS 77840 OFFICE (979) 260 -6963 FAX (979) 260-3564 F ACSI M ILE T R ANSM ITTAL SH EET c~ TOTAL N~ F PAGES }NCLUDI NG COVER: SENDER'S REFERENCE NUMBER: RE : YOUR REFER ENCE NUMBER: 0 URGENT 0 FOR REVIEW 0 PLEASE COMMENT 0 PLEASE REPLY 0 PLEASE RECYCLE NOTES/COMMENTS : 14100 1/00 2 05 /17 /2004 08:23 FAX 9792603564 MITCHELL and MORGA N @002 1 002 • • FOREST RIDGE ELEMENTARY SCHOOL 5/17/2004 DESCRIPTION QUANTITY UNITS PRICE AMOUNT 12" Wa ter Line 801 .11 LF $46 .00 $36 ,851 .06 8" Water Line 194 .01 LF $40 .00 $7,760.40 6" Water Line 242 .32 LF $40 .00 $9,692 .80 2" Wa ter Line 15 .86 LF $21.00 $333 .06 12" x 6" M.J. Tee 1 EA $500 .00 8500.00 12" x 90 M.J. Bend 1 EA $180.00 $180 .00 12" x 12" M.J. Tee 1 EA $540.00 $5 40.00 12" x 22 .5 M.J. Bend 2 EA $180 .00 $360.00 12" x 8" M.J. Reducer 2 EA $150 .00 $300 .00 Connect to Ex isting 12 " Line 1 EA $2 ,000 .00 $2 ,000.00 12" M.J. Gate Valve 3 EA $1,000 .00 $3 ,000.00 8" M.J. Gate Valve 1 EA $800 .00 $800 .00 8" x 45 M.J. Bend 1 EA $150 .00 $150.00 8" x 6" M.J . Tee 1 EA $300 .00 $300 .00 6" M.J. Gate Valve 2 EA $700 .00 $1 ,4 00 .00 Type 1 Fire Hydrant Assembly 3 EA $2,500 .00 $7,500 .00 2" Single Water Serv ice 2 EA $1,000 .00 $2,000 .00 Fire Department Connection (Double) 1 EA $3,000 .00 $3 ,000 .00 Total Water Line==> $76 ,667 .32 S:\Proj\0370-CSISD -Elem entary -Sc hool\x ls\cos test.xls DEVELOPMENT PERMIT PERMIT NO . 03-04B ~-~ Project: FOREST RIDGE ELEMENTARY SCHOOL COLLlGl STATION FOR AREAS INSIDE THE SPECIAL FLOOD HAZARD AREA RE : CHAPTER 13 OF THE COLLEGE STATION CITY CODE SITE LEGAL DESCRIPTION: Castlegate Business Center Lo t 2 DATE OF ISSUE: 05/11/04 OWNER: College Stat ion ISO I George Mclean 1812 Welsh College Station , Texas 77840 SITE ADDRESS: 2270 Greens Prairie Road West DRAINAGE BASIN: Spring Creek VALID FOR 12 MONTHS CONTRACTOR: Bartlett-Cocke TYPE OF DEVELOPMENT: Full Development Permit SPECIAL CONDITIONS: All constructi on m ust be in compl iance w ith the approved construct ion plans All trees required to be protected as part of the landscape plan must be completely barricaded in accordance w ith Section 7 .5.E ., Landscape /Streetscape Plan Requirements of the C ity 's Unified Development Ordinance , prior to any operat ions of th is permit. T he cleaning of equ ipment or materials within the drip line of any tree or group of trees that are protected and requ ired to rema in is strict ly prohibited . The disposal of any waste material such as , but not limited to , paint , oil , solvents , asphalt, concrete , mortar , o r other harmful liquids or materials within the drip line of any tree required to remain is also proh ibited. TCEQ PHASE II RULES IN EFFECT. The Contractor s hall take all necessary precautions to prevent silt and debris from leaving the immediate construct ion site in accordance wi th the approved eros ion control plan as well as the City of College Station Drainage Pol icy and Design Criter ia. If it is determined the prescribed erosion control measures are ineffective to retain all sediment ons ite , it is the contractors responsib ility to implement measures that will meet City , State and Federal requirements . The Owner and/or Con t ractor sha ll assure that all d isturbed areas are sodden and establ ishment of vegetation occurs prior to remova l of any silt fencing or hay bales used for temporary erosion control. The Owner and/or Contractor shall also insure that any disturbed vegetat ion be returned to its original condition , placement and state . The Owner and/or Contractor shall be responsible for any damage to adjacent properties , city streets or infrastructure due to heavy mach inery and/or equ ipment as well as eros ion , siltation or sedimentation resulting from the perm itted work . In accordance w ith Chapte r 13 of the Code of Ordinances of the City of College Station , measures shall be taken to insure that debris from construct ion , erosion , and sedimentation shall not be depos ited in city streets , or existing d rainage facilit ies . I hereby grant t hi s permit fo r development of an area inside the spec ial flood hazard area . All development shall be in acco rdance w ith the plans and specifications submitted to and approved by the C ity Engineer in the developmen t perm it application for the above named project and all of the codes and ordinances of the City of College Stat ion that apply . OS-l \-ol\ Date orjr';/{J c-J Date 05 /1 7 /2 00 4 14 :51 FAX 97926 03 564 MITCHELL and MORGAN COMP . .\NY: /UITCHELL&/UORGAN, LLP ENGINEERS & CONSTRUCTORS 5 11 UNIVERSITY DRIVE E., SUITE 204 COLLEGE STATION, TEXAS 7 7 840 OFFIC E (979) 260-6963 FAX (979) 260 -3564 FACSIMILE TRANSMITTAL SHEET CO:S -Oe,V .Sexu lC9c T OTAL 1'0. OF PAGES IN CLUD!NG CO VER : PH O NE NUMBER: SENDER'S REFEREN CE NCMBER: RE: YOUR REFERENCE N UMBER: D URGENT D FOR REV IEW D PLEAS E COMMENT D PLEAS E REPLY 0 PLE:\SE RECYCL E !\OT ES/COMMENTS: f4J 00 1/010 05 /17 /2004 14:51 FAX 9792603564 MITCHELL and MORGAN BARTLE1T COCKE G E N E R A L C 0 N T R A C T 0 R S T R A N § lVi T ·r To: Mitch ell & Morgm1 . I .I .P Date: 05 /17/04 5 11 Unive rsi ty Drive , Suitt: :~o -i Collcgt: St at ion , Tc:-..as 77 8-10 Re: 141002 /010 A J , Forest Ridge Elementary School Attn: Janu.;s Ba tc nhor st BCLP#: 0430 Architect#: 2016 .01 TRA1"SMIH1':0 HEREWl'fJI ARE THE FOl..LOWING ITEMS : Attached please find copies of the Storm Water Protection Plan Notice oflntent and related documents for your files and for the City of College Station . These have already been sent to the appropriate state authorities for the permit. Sincerely. a;~- Addiso11 A. Hunter , III Project Manngcr cc: ~r. Mike Bnll -CSISD Mr. Ro,ce Th umns -CSISD M r. l\.e~ Hutch ens -VLK Arch itects l-J onston File File/Johsite 0430: BARTLElT COCKE, L.1'. ·------··-------·-·---·--------------------·-Becaus e Quality Mat ters ---·-----------·-------·-.. ·------.. ---------·--.. ·-·-··--· BBlSO JAM EEL, SUITE 14 0, HOUSTON , TE XAS 77 04 0 V TE1.: [713] 996-95 10 • FA X [7 13] 996 -95 46 V/f wet;s ite: www.b ar thm-c ocke.c om MITCHELL and MORGAN 141003 /010 05 /17 /2004 14:52 FAX 9792603564 Notice of Intent (NOi) for Storm Water Discharges Tee Q Office Use Only TPD GIN ES Permit Number : TXR15 J_j_j_i__J -NO Number: l_l_l_l_l _l_l_I A. Construction Site Operator Name : Bartlett Cocke L.P. Customer R eference Number : CN 600523740 Mailing Address: 8850 Jameel, Suite 140 City : Housto n State : TX Zip Code : 77040 Country Mailing Information (if outside USA) Territory : ________ Country Code : Postal Code: Phone Number: 713-996-9510 Extension : Fax Number : 713-996-9546 E-mail Address: ahunter@bartlett-cocke.com Type of Operator: D Individual 0 Sole Proprietorship • D. BA l!J Partnersh ip D Co rporat io n IJ Federal Government LJ State Government Cl County Government D City Government D Other : __ _ Independent Operator? [!}Yes CJ No Number of Employees: 0 Q..20 D 2 1-100 0101 -250 Iii 251-500 0 501 or higher Federal Tax ID : 741654769 State Franch ise Tax ID Number: DUNS Number: 0497510 B. Billing Address Name : Bartlett Cocke L.P. Malling Address: 8850 Jameel, Suite 140 City : Housto n State : TX Zip Coda: 77040 Country Ma ili ng Informa tion (if outside USA} Territory: Country Code : Postal Code : C. Project I Site Information l!J New D No Change Regulated Entity R eference Number : RN Name : Forest Ridge Elementary School Mailing Address: 8850 Jameel, Suite 140 City : Housto City : College Station n State: TX Zip Code : 77040 Physical Address : 1950 Green's Prairie Road West Location Access Description : West on Green's Prairie West County : BRAZOS Zip Code: 77845 Latitude : .1Q_ • ~ • _!L" N Longitude:~•....!§_' J.1. •• W Degrees (°), Minutes ('}, and Seconds ("} Latitude : Longitude:------- Standard Industrial Classification (SIC} code: _jM£_ Also , describe the construction a New Elementary School Decimal Form clivity at this site (do not repeat the SIC code): ermit (TXR150000}? 00 Yes LI No located on Indian Country Lands? Cl Yes [!] No Has a storm water pollution prevention plan been prepared as specified in the general p Estimated area of land disturbed (to the nearest acre): 17 Is the project I site Does th is project I site discharge storm water into a municipal separate storm sewer syst em (MS4)? l!'.IYes D No if yes, prov ide the name of the MS4 operator : City of College Station Provide the name or segment number of the water body that receives storm water from t his project I site: Peach Creek D. Contact -If the TCEQ needs additional information regarding this application, who sho uld be contacted? Name : Addison A. Hunter, Ill Title: Project Ma naser Phone Number: 713-907-2290 Extension : Fax Number : E-mail Address : ahunter@bartlett-cocke.com E. Payment lnfonnatlon • Check I Money Order Numbe r: Name on Check I Money Order: F. Certification ccordance with a system des igned to assure that qualified I certify under penalty of law that this document was prepared un der my direction or supervision In a personnel property gather and evaluate the infonnation su bmitted . Based on my Inquiry of the pers directly responsible for gathering the Information, the infonnatlo n submitted Is, to the best of my k aware there are significant penalties for submitting false Information, Including the poss ibility of Ii on or persons who manage the system, or those persons nowledge and bellef. true, accurate, and complete . I am ne and Imprisonment for knowing vfolatfons . Construction Site Operator: le : \l i c s \)1~ ~-)we "'·'" Date : --0 Prefix : Mr. ------~------Last: Heath Signature: _p:;;~-;µ~~~:.....--1=:i...::~:l..<:-Ar:----------- _,__ __________ ..,...,..Midd _____ Title: D1.\l us at (512) 239-4671. ow to fill out this form or about the stonn water program, please contact Individuals are entllled request and review their personal information that the agency gathers on It s fonns. They may also have any errors In their Information corrected . To review such Information, contact us at (512) 239-~282 . ached doC1Jment to subm it the $100 The completed NOi must be mailed to the followlng addre ss . Use the att application fee . Please note that the NOi and application fee are submitte Texas Commission on Environmental Q Storm Water & General Permits Team; M P.O. Box 13087 Austin, Texas 78711-3087 d separately to different addresses. uality c -228 - TCEQ-20022 (05103) Page 1of2 05 /17 /2004 14:55 FAX 9792603564 MITCHELL and MORGAN •••.m n ----lilllWI' --.. CONSTRUCTION SITE NOTICE FOR THE Texas Commission on Environmental Quality (TCEQ) Storm Water Program TPDES GENERAL PERMIT TXR150000 141004 /010 The following information is posted in compliance with Part II.D.2. of the TCEQ General Permit Number TXRl 50000 for discharges of storm water runoff from construction sites. Additional information regarding the TCEQ stonn water permit program may be found on the internet at: www.tnrcc.state.tx.us/permitting/waterperm/wwperm/tpdestonn Contact Name and Phone Number: Project Descript ion: (Phys ical address or description of the site's location, estimated start date and projected end date, or date that disturbed soils will be stabilized) Location of Storm Water Pollution Prevention Plan : Norris Murrell -Mobile 713-907-4809 Randy Leverett -Mobile 979-450-1223 1950 Green's Prairie Road West College Station, Texas 77845 Estimated start date -May 3, 2004 Projected end date· July 15, 2005 Construction trailer For Construction Sites Authorized Under Part 11.0 .2. (Obt aining Authorization to Discharge) the following certification must be completed: I Raymond Heath (TypedorPrintedNamePersonCompletingThisCertification) certify under penalty of law that I have read and understand the eligibility requirements for claiming an authorization under Part 11.D.2. of TPDES General Permit TXR 150000 and agree to comply with the terms of this pern1it. A storm water pollution prevention plan has been developed and imp lement ed according to pe1mit requirements. A copy of this signed notice is supplied to the operator of the MS4 if discharges enter an MS4 system. I am aware there are significant penalties for providing false information or for conducting unauthorized discharges , including the possibility offine and · prisonme for knowing violations. · s-... c, _-o~t __ _ Date 'i' ;, " ----------------- 05 /17 /2004 14:56 FAX 9792603564 MITCHELL and MORGAN BARTLETI COCKE G E N E R A L C 0 N T R A C T 0 R S May 5, 2004 "In spec tor'· Texas Commission on Enviro nm ent a l Quality P.O. Bo x 13087 Austin , TX 78711-3087 Re: TPDES St orm Water General Permit No. TXR150000 Delegatin g an "Authorized Representative " De ar Di recto r: 141005 /010 This letter serves to desi gn ate either a person or spe cificall y described position as an authorized person for signin g rep orts , storm water poll ut ion prevention pl ans , ce1tifications or othe r in forma tion req ues ted by the Dir ecto r or requ ire d by the permit. This au tho rizat ion cannot be use d for signing a TPD ES permit application (e.g. Notice of Intent ( 01)) in accordance with 40 CFR 122.22 . The following per son or position is hereb y authorized to sign reports , plans or ce1tifications other than the NOI application: No rris Murr ell ; Project Name: Forest Ridge Elementary Schoo_! _______________ _ By signin g this authorization, I confirm tha t I meet the follo wing requirements to make such a designation as set fo1 t b in either Part Vl.G.l of the Construction general permit [63 Fe d Reg 36506] or Part VII.G. l of the Multi - Sector general permit [60 Fe d Reg 51120]. For a corporation : by a re sponsible corpora ce officer. For th e purp ose of thi s seccion , n responsible corporate officer means : a pres id ent , secreca ry, treasurer, or vice-president of the corporatio n in charge of a princ ipa l business functi on or any other person who performs simi lar policy or dec ision makin g func ti ons for the co rp oration; or th e manager of one or more manufacturing, production or operating faci lit ies empl oy ing more than 250 per sons or havi ng gross mmu al sales or expendi tures exceed ing $25,000,000 (in seco nd qu arte r 1980 dollars) if au th ority to sign do cumen ts has been ass igned or delegated to th e manager in accordance with co rporate procedures . For a pa1tnership or so le pro pri etorship : by a genera l paitner or the proprietor, respect ively. Fo r a muni cip ality , State, federal or ot her public agency: by eit her a prin cip al executive officer or ranking elected offi cial. For purpose s of this sect ion, n prin ci pal executive officer ofa Federa l agency includes (1) the chiefe xecuri vc officer of the age ncy, or (2) a se ni or executive oftic.e r ha vi ng responsibility for th e overall operations of a princip al geogra phi c unit of the age ncy (e .g. Regional Admi ni strators of EPA). ;'I certify und er penalty of law that this document and all attachments were prepared under my direction or supervision in accord ance with a system design ed to assure that qu alified personnel prop erl y gathered and evaluated the information submitted. Based on my inquiry of the person or pers ons who mana ge r the system , or those per sons directly responsible for gathering the information , the information submitted is, to the best of my knowledg e and belief, true , accurate, and complete. I am aware that there are significant penalties for submitting fals e information , includin g the po ss ibility of fine and imprisonm ent for knowing violations." Houston Division Vic e President 5 -£"-o _j_ __ .. _ 05-05-0 4 BARTLETI COCKE, L.P. Because Quality Matters ------------------ 885 0 JA MEEL. SUITE 140. HOUSTO N, TEX AS 77 04 0 'f TEL : [713) 996-9510 • FAX (713) 996-9546 'V webs ite : www.ba r t lett-cocke.com 05 /17 /2004 14:57 FAX 9792603564 MITCHELL and MORGAN BARTLETT COCKE G E N E R A L C 0 N T R A C T 0 R S May 5, 2004 ··Inspecto r" Texas Commission on Environmental Quality POB 1308 7 Austin, TX 787 11 -308 7 TPDES Storm Water General Permit No . TXH.150000 Qualifications of"Authorized Representative" Dear Insp ecto r: Th is letter se rve s to present the qualifications of Norris Murrell as Bartlett Cocke, L.P. "Authorized Representative" for the SWPPP for this proj ect Norris Murrell has over 42 years of construction experience on a variety of commercial construction projects. He has served as "Authorized Represent at ive " for S\l/PPP on these projects without incident or penalty . As "Autho rize d Representative " he ha s supervised the installation and maintenance of practices nece ssary to meet TCEQ requirements, and has conducted inspections as required . With his experience in supervising con struction projects , and his experience as "Authorized Representative" for SWPPP, Norris Murrell is qualified to perform as Bartlett Cocke , L.P . "A uthori zed Representative " for this project. Sincerely , Raymo Houston Division Vice President BARTLETT COCKE, L.P. f4J 006 /010 -------------·------Because Quality Matters--· ----------· 8850 JAMEEL. SUITE 140, HOUSTON, TEXAS 77040 T TEL: [7 13) 996-9510 • FAX (713) 996-9546 T webs ite: www.bartlett-cocke .com 05 /17/2004 14:58 FAX 9792603564 MITCHELL and MORGAN BARTLETT COCKE G E N E R A l C 0 N T R A C T 0 R S May 5, 2004 "Inspector" Texas Commission on Environmental Quality P.O. Box 13087 Austin, TX 78711-3087 Re: TPDES Storm Water General Pennit No. TXRlSOOOO Delegating an "A uthori zed Representative" Dear Director: 141007 /010 This letter serves to designate either a person or specifica ll y described position as an authorized person for signing reports, storm water pollution prevention plans, certifications or other information requested by the Director or required by the permit. This authorization cannot be used for signing a TPDES permit application (e .g. Notice of Intent (NOI)) in accordance with 40 CFR 122.22. The following person or position is hereby authorized to sign repo1is, plans or certifications other than the NOI application: Randy Leverett; Proj e~t Name: Forest Ridge Elementarv School By signing this authorization, I confirm that I meet the following requir ements to make such a designation as set fotth in eit he r Pa1i VI.G. l of the Construction general permit [63 Fed Reg 36506] or Part VII.G. l of the Multi- Sector general permit [60 Fed Reg 51120]. For a corporation : by a responsible corporate offi cer. For the purp ose of thi s section , a responsible corporate officer means: a president, secmary , trea surer, or vice-president of the c-0rporntion in charge of a principal bu siness function or any other perso n who performs simila r policy or decision making ftmctions for the corporation; or the manager of one or more manu factu ring, produ ctio n or operating faci lities empl oying more than 250 person s or having gross an nu al sales or expendilmes exceeding $25,000,000 (in see-0 nd quarter 1980 dollars) if authority to sign docum ents has bee n assigned or delegate d to the manage r in acco rd ance with corporate procedures. For a partnership or sole proprietors hip : by a ge neral part ner or the proprie tor, resp ect ively . For a muni cipal ity , State, Federal or other publi c agency: by eit her a principal executive officer or ranking elected official. For purposes of this section, a principal executive offi cer ofa Fed era l agency include s (1) the chief executive officer of the age ncy , or (2) a senior executive offic~r having responsibility for the overall operations of a prin cip al geograp hic unit of the agen cy (e .g. Regional Administrators of EPA). "I certify under penalty of law that this document and all attachme nts were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the info1111ation submitted. Based on my inquiry of the person or persons who manager the system, or those persons directly responsible for gathering the info rmation, the information submitted is, to the best of my knowledge and belief, trne, acc urat e, and complete. I am aware that there are significant penalties for submitting false infonnation , including the possibility of fine and imprisonment for knowing violations ." --------------Houston Division Vice President 05-05-04 BARTLETI COCKE, L.P. ---------------------Because Quality Ma tters ·--------- 8850 JAMEEL, SUITE 140. HOUSTON, TEXAS 77040 Y TE L: [713] 996 -9 510 • FAX (713 ) 996-9546 Y webs ite : www .bartlett-cocke .c om 05 /17/2 00 4 14:59 FAX 9792603564 MITCHELL and MORGAN BARTLETI COCKE GENERAL CONTRACTORS ~fay 5, 2004 ··Inspe ctor " Texas Commission on Environmenta l Quality POB 13087 Austin, TX 7871 1-30 87 ~ -Ta TPDES Storm Water General Permit No. TXR150000 Qualifications of "A uthorized Repr esentat ive " Dear Insp ecto r: -- ----- This letter serves to present the qualifications of Randy Leverett as Bartlett Cocke, L.P. "Authorized Representative" for the SWPPP for this project Randy Leverett has over 42 years of construction experience on a variety of commercial con struction projec ts. He has ser ved as "Author ized Representative" for SWPPP on these projects without incid ent or penalty . As "Authorized Representative" he has supervised the installation and maintenance of practices necessary to meet TCEQ requir ements, and has conduct ed inspection s as required . With his experience in supervising construction projects, and his experience as "Authorized Repr esenta tive" for SWPPP, Rand y Leverett is qualified to perfo rm as Ba1ilett Cocke, L.P . "Authorized Representative" for this project. Sincere ly, Ra yr Hous ton Division Vice President BARTLEIT COCKE, L. P. --------------------Because Qua lity Matters -------· ~ 00 8 /010 8850 JAMEEL, SU IT E 140, HOUSTON, TEXAS 77040 T TEL: (71 3] 996·9510 • FAX (713) 996-9546 T webs it e: www.bartlett-c oc ke .com 05 /17 /2004 14:59 FAX 9792603564 MITCHELL and MORGAN 141009 /010 Bartlett Cocke L. P. Project No. 0431 Forest Ridge Elementary School POLLUTION PREVENTION PLAN CERTIFICATION I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified pers01mel properly gathered and evaluated the information submitted . Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted, to the best of my knowledge and belief, true, accurate, and complete . I am aware that there are significant penalties for su bmitting false information, including the possibility of fine and imprisonment for knowing violations. Title: Houston Bartlett Cocke L.P. Date: ___ 5_-_S ___ ..... _o__,_f __ _ 05 /17 /2004 15:00 FAX 9792603564 MITCHELL and MORGAN 141010 /010 f Bartlett Cocke L. P. Project No. 0431 Forest Ridge Elementary School Primary Point of Contact :=Pr=o=1· e=c=t N==am=e==an=~--~~o_c:=_a_ti_o_n=====-:l _o~--w~n~e-r __ N--a~m-_e ___ a_n_d~-A~d-_d_r~e-s_s~~~~~-=-f..-C-o_~_tr_a_ct_o_r -N-am_e _a_nd_A-ddr-eS--_s _ _. Forest Ridge Elementary Coll ege Station Independent Bartlett Cocke School School District 8850 Jameel, Suite 140 1950 Green Pra irie Road West 1812 Welsh Hou ston, Texas 713-996-9510 Colle ge Station , Texas 778 45 College Station, Texas 77840 Norris Murrell -Superintendent Office No. 409-764-5400 Mobile No. 713-907-4809 Randy Leverett - Asst. Superintendent Mobile No. 979-450-1223 ' DEVELOPMENT PERMIT PERMIT NO. 03-04 Cf'1 Project: FOREST RIDGE ELEMENTARY SCHOOL COLLlGl STATION FOR AREAS INSIDE THE SPECIAL FLOOD HAZARD AREA RE: CHAPTER 13 OF THE COLLEGE STATION CITY CODE SITE LEGAL DESCRIPTION: Castlegate Business Center Lot 2 DATE OF ISSUE: 02/10/04 OWNER: College Station ISO I George Mclean 1812 Welsh College Station , Texas 77840 TYPE OF DEVELOPMENT: Clearing Permit SPECIAL CONDITIONS: SITE ADDRESS: 2270 Greens Prairie Road West DRAINAGE BASIN: Spring Creek VALID FOR 6 MONTHS CONTRACTOR: All construction must be in compliance with the approved construction plans All trees required to be protected as part of the landscape plan must be completely barricaded in accordance with Section 7.5 .E., Landscape/Streetscape Plan Requirements of the City's Unified Development Ordinance , prior to any operations of this permit. The cleaning of equipment or materials within the drip line of any tree or group of trees that are protected and required to rema in is strictly prohibited . The disposal of any waste material such as , but not limited to , paint, oil , solvents , asphalt, concrete, mortar, or other harmful liquids or materials within the drip line of any tree required to remain is also prohibited. Erosion Control per the approved plan must be in place for duration of the project. This permit is for a limitted area of the site . Additional erosion control will be required if clearing entends into other areas . The Contractor shall take all necessary precautions to prevent silt and debris from leaving the immediate construct ion site in accordance with the approved erosion control plan as well as the City of College Station Drainage Policy and Design Criteria. If it is determined the prescribed erosion control measures are ineffective to retain all sediment onsite, it is the contractors responsibility to implement measures that will meet City, State and Federal requirements . The Owner and/or Contractor shall assure that all disturbed areas are sodden and establishment of vegetation occurs prior to removal of any silt fencing or hay bales used for temporary erosion control. The Owner and/or Contractor shall also insure that any disturbed vegetation be returned to its original condition, placement and state. The Owner and/or Contractor shall be responsible for any damage to adjacent properties, city streets or infrastructure due to heavy machinery and/or equipment as well as erosion, siltation or sedimentation resulting from the permitted work. 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 inside the special flood hazard area . All development shall be in accordance with the plans and specifications submitted to and approved by the City Engineer in the development permit application for the above named project and all of the codes and ordinances of the City of College Station that apply. I I Date Date ~Z-/tJ -D f & :z_ -d._l, .._ (!) '/ FOR OFlbE USEtj.;L Y Case No . Q -Q D a te Submitted \ ~~~ -{)I...[ DEVELOPMENT PERMIT MINIMUM SUBMITTAL REQUIREME ~S ~ .. , D $200 .00 development permit fee .· ~ fu UJQ.i:,'y\.td ¥Q.,((_ (\AA~ 62.u.Y"L D Drainage and erosion control plan , with supporting Drainage Report two (2) copies each o- D Noti ce of Int ent (N.0.1 .) if disturbed area is greater than 5 acres Date of *Required Preapplication Conference: ____________________ _ *(Required for areas of specia l flood hazard) cft/ LEGAL DESCRIPTION Lot/ 2 -fc:9:; Castelgate Business Center I APPLICANT'S IN FORMATION (Pr imary Contact for the P roject): Name _________________ ~ E-Mail _____________ _ Street A ddress --------------------------------- City------------ Phone Number State _______ _ Zip Code _______ _ Fa x Number --------------------------- PROPERTY OWNER 'S INFORMATION : Name College Station ISD/ George Mclean E-Ma il gmclean@csisd .org Street Address 1812 Welsh --'--------------------------------- City College Station State Texas Zip Code 77840 ____ _ Phone Number (979) 764-5443 Fa x Number (979) 764-5432 ARCHITECT OR ENG INEER'S INFORMATION : Name -----------------~ E-Mail _____________ _ Street Address --------------------------------- City ___________ _ State _______ _ Zip Code _________ _ Phone Number _____________ _ Fax Numb er ------------~ Application is hereby made for the following development specific site /wate rway alterations : ACKNOWLEDGMENTS : George McLean I, __ , des ign ~/owner , hereby acknowledge or affirm that: The information and concl us ions contained in the above plans and supporting documents comply with the current equire ments of the City of Colleg e Station , T exas City Code , Chapter 13 and its ass oc iated Drainag e Por and Design St ndards. Developmen t Permit 07/02/03 1of2 ,. . . As a condit ion ,of ap pro val of this permit appl icatio n , I agree to const r uct the improvements proposed in th is application according to these documents and the requirements of Chapter 13 of the College Station City Code Contractor CERTIFICATIONS: A. I , ~~~~~~t any nonre si dential stru ct ure on or proposed to be on this site as part of this application ~tlcsi~l"liiihi i to prevent damag e to the st r ucture or it s contents as a result of flooding from the 100-year~MU btdis-.~ ~ _,,,,,, --1. oF '12 ,, 1 r f'\A . ---¥"---+tt-~-tt---i+--------~· ":~···· •••• ····~:'5''··· 1,, f lP b V'"f' , .· ~ '• .~,=---~--t--v-~--------- Engineer 1* l ~-...... ::.DNll}J e B . z. *. .. .......... ORGA ~·ve:P:6N19~.~: ~:.~········;c ~ i .... ;""" 9 ! 41/t I, __ , rtify that the finished \'~~~~~~~~~~ lowest floor, including any basement , of any residential ucture , proposed 1t~~qb'?J.i.l 1 ~~l i cation is at or above the base flood elevation established in latest Fe ~A~trat i on Flood Hazard Study and maps , as amended . Engineer Date ,f ~~f>Jt1~ C. I, _IJ.lll_•·_, certify that the alterations ~~t covered by th is perm it shall not diminish the flood- carrying capacity of the waterw~~'itt~s i ng this permitted site and that such alterations or d lopment are consistent wli eor;~·q · nt~·~ot e City of College Station City Code , Chapter 13 erning encroachments of llJjw.. a\/ . d.Gf. • · • ays fringes. I~~....... ,. B MOR VERONICA J; •• : ............. ~ ~.................. • er:,,,,. Ii~\ 77689 Q/&j 17 l I -=-----++1---r---1'1------1-=.ro~~~9.~r~~~~0~--'11---<o~/~1D'"f~-------------- Engineer \\.,/ONAL ;.--Date ,,,~ D. , ~Q,(111-'~~at the propos~s do ~ot raise the level of the 100 year flood above elevation established in the late ~~~.6~~J~-'br.e Administration Flood Hazard Study . leo".··· * ~~~·'i -, •• ••• * .,. '* : ·. * ~ I , -~---+41--~-l-\----_,!~:: ...... ::~ ...... :::>LLl::1.9~II:M9:~~ll·-1_i-J.,-lP-+r-04-=--------------1.~ \ L\ 77689 A .:,'!! JJate "'« 0 ··ri:~ ~ v •• ~,,, t .. "'..c-0 ••,q I STE.~~.-r.~":J ,,,·ss ······· ~V'- Conditions or comments as part of appro ~,.,, .. ~~~111~11J111;....,,,~!C...----------------------- 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. All development shall be in accordance with the plans and specifications submitted to and approved by the City Engineer for the above named project. All of the applicable codes and ordinances of the City of College Station shall apply. Developmen t Perm it 07 /02/03 2 of 2 '. r • J . ., .. ' '\,;. ., . '·. . I '·. ' t .. .-. · . .,. '' Forest Ridge Elementary School Drainage Analysis and Report April 2004 DP 04-04 Prepared for the College Station Independent School District B y ,/krrcHELL41,/kORGAN, LLP Engineers & Constructors 511 University Drive, Suite 204 College Station, Texas 77840 Office (979) 260 -6963 Fax (979) 260-3564 COLLEGE STATION ENGINEERING CERTIFICATION I hereby certify that this report for the drainage design for the Forest Ridge Elementary School building and parking lots was prepared under my supervision in accordance with the provisions of the City of College Station Drainage Policy and Design Standards for the owners thereof FOREST RIDGE ELEMENTARY SCHOOL DRAINAGE ANALYSIS INTRODUCTION This storm drainage report is written to document and analyze the necessary drainage infrastructure for the construction of the Forest Ridge Elementary School and associated parking lots and sidewalks . College Station Independent School District (CSISD) plans to construct a new elementary school, which consists of the elementary school building, three access driveways off of Greens Prairie Road, two concrete parking lots, sidewalk along the perimeter of school building, and other impervious cover areas associated with the school. Because of additional impervious cover to this site, a detention pond has been designed to reduce the storm water runoff to at or below the predeveloped conditions. The parameters used for design and analysis of pre-vs . post-developed conditions are incorporated to show how the final drainage design will accomplish the desired drainage objectives per the City of College Station Drainage Policy and Design Standards (DPDS). If changes to the site drainage patterns or proposed building square footages affect the assumptions in this report, a letter addendum will be prepared to analyze the effect of the changes and to assure compliance with the College Station Drainage Ordinance. GENERAL LOCATION AND DESCRIPTION The Forest Ridge Elementary School building is to be located in south College Station, approximately 0.86 miles southwest of SH 6/Greens Prairie Road intersection adjacent to Greens Prairie Road , as shown on Exhibit A The legal description of the property is Lot 2, Block 1, Castlegate Business Center, Robert Stevenson Survey, A-54 , Volume 1415 , page 74 . Future commercial and current residential development surrounds the Forest Ridge Elementary School property . The Forest Ridge Elementary School property comprises 17 .02 acres . The proposed improvements increase the impervious cover area 2 Forest Ridge Elementary School by 9 .2 acres, which in tum decreases the grassland by the same amount. These existing drainage areas, E02 and E04, are shown on Exhibit C. The drainage areas with proposed improvements (P02 -Pl2), also shown on Exhibit D, show the drainage areas due to the new school building and parking lot dimensions . Existing drainage area E02 corresponds to proposed drainage area P02 and existing drainage area E04 corresponds to proposed drainage areas P03-Pl2 . PRIMARY DRAINAGE BASIN DESCRIPTION As seen on Exhibit A, this property is located near the Castlegate Subdivision on Greens Prairie Road, near the intersection of Greens Prairie Road and future State Highway 40 . Exhibit B illustrates that the site is located in Spring Creek Tributary B Watershed and that a small portion of the site lies within the 100-year regulatory floodplain per the Federal Emergency Management Agency Flood Insurance Rate Map Panel 205 , effective date February 9, 2000. The site is located within a single drainage basin, as seen on Exhibit C . DRAINAGE DESIGN CRITERIA All drainage design is in accordance with the City of College Station DPDS . As such : • The design rainstorm events used are the 5 through 100-year events to analyze the effectiveness of the detention pond design ; and • Because of the relatively small size of drainage areas, flow calculations are based on the Rational Method , with a minimum time of concentration of 10 minutes. DRAINAGE FACILITY DESIGN Predevelopment Drainage Patterns The site drains into Tributary B of Spring Creek, and eventually into Spring Creek. As shown on Exhibit C, existing (E) drainage area E02 drains into drainage area EO 1 towards the southeast. The runoff for drainage areas EO 1 and E02 cross Greens Prairie Road into drainage area E03 . It should be noted that this drainage report assumes that all ex isting cul vert crossing s of Greens Prairie Road have the flow capacity to handle 3 Forest Ridge Elementary School the existing flow conditions. Drainage areas EO 1 and E03 are not located on the project site , and therefore were not included in this analysis . The runoff from drainage areas EOl, E02 and E03 cross Greens Prairie Road again where the flow from drainage area E04 combines with the rest of the existing flow into Tributary B of Spring Creek. Exhibit 1, located in Appendix A, shows the amount of area designated as grassland, gravel, and pavement (impervious) for each existing drainage area. Exhibit 1 also shows the storm event flows calculated using the rational method, as well as the total pre-and post-development flows . Flows from drainage areas E02 and E04 represent the "Total Existing" flow shown in Exhibits 5-14 . This existing flow represents the flow used to determine the size of the detention pond and the amount of flow required to be detained . It is anticipated that the new construction will add 9.2 acres of impervious cover to the Forest Ridge Elementary School property . The conversion of this pervious area (9 .2 acres or 400, 700 square feet) to an impervious area will increase the runoff by approximately 52 .8 cfs for the 100-year storm . This increase in runoff was accounted for in the design of the detention pond, shown on Exhibit D . Postdevelopment Drainage Patterns The proposed drainage areas shown on Exhibit D are different than the existing drainage areas shown on Exhibit C. This is due to the construction of the parking lots, driveways , and building pad associated with the elementary school. Drainage area P02 drains to the southwest as did drainage area E02. Existing drainage area E04 is subdivided into ten proposed drainage areas (P03- P12), as shown on Exhibit D . Drainage area P05 drains around the north end of the school building site and into drainage area P12 by way of a 176 foot , 30" reinforced concrete pipe (RCP), which eventually drains into the detention pond located in drainage areaP12 . Drainage area P04 drains around the southwestern end of the school building site and into a 10 foot recessed curb inlet that begins Storm Drain 1 (SD 1) as shown on Exhibit E . SDI consists of a 30 " RCP that ultimatel y ends at the detention pond in 4 Forest Ridge Elementary School drainage area PI2. As shown on Exhibit E , Storm Drains 2 & 3 both connect to SDI. SD2 conveys flow from drainage areas P07 and P08, while SD3 conveys flow from drainage areas P07 A and P09 . Because the school is constructing a courtyard in the middle of the building pad, grate inlets P07 and P07 A as well as SD2 and SD3 were designed for the I 00 year storm event. Grate inlets P06, P08 and P09 were designed for the I 0 year storm event . The following table shows the anticipated flow to each grate inlet, the required area for each inlet and the proposed grate inlet : Grate Flow (CFS) Required Proposed Grate, or Opening Area Inlet Area (Sq. In) Equivalent (Sq. In) Neenah #R3210-A P06 3.7 (IO yr) 2I6 25 I/8" x 25 1/8" 2I6 I 3/4" x 4 Yi'' Openings Neenah #RI88I-C-Q P07 0.6 (100 yr) 40 25 %" x 25 %" I44 Yz" x 4 Yz" Openings Neenah #RI88I-C-Q P07A 0.6 (100 yr) 40 25 %" x 25 %" I44 Yz" x 4 Yz" Openings Neenah #RI 881-C-Q P08 2.1 (10 yr) 138 25 %" x 25 3/.t I44 Yz" x 4 Yz" Openings Neenah #RI881-C-Q P09 2.6 (IO yr) 135 25 %" x 25 %" 144 Yz" x 4 Yz" Openings Calculations showing the sizing of the pipes directing storm water flow from the proposed inlets into the detention pond are shown on the Pipe Size Calculations in Appendix A The flows shown at these tables were computed using Manning 's equation . The larger storm events (25, 50 and IOO yr) produce excess runoff that will bypass SDI and the detention pond from drainage areas P04, P06, P08 and P09. The peak excess runoff is shown in Exhibit 2 . By creating hydrographs for these larger events and subtracting the design storm for these drainage areas (10 yr), an excess runoff hydrograph was modeled for these larger events shown in Exhibit 5 . These hydrographs were then modeled with the entire system hydrographs shown in Exhibits 8-10. As shown in these exhibits, this excess runoff was subtracted out of the detention pond hydrograph calculations and added into the total flo w not detained on the project. 5 Forest Ridge Elementary School Once the detained storm water is collected in the pond , a 15-inch reinforced concrete pipe will carry the storm water to the existing creek adjacent to the property. A 20' overflow weir was also modeled at elevation 300 .85 in order to keep the detained water from cresting the detention pond and eroding the berm. The pre-vs . post-developed hydrographs from these ponds and the tabular hydrograph data are shown in Appendix A The pre-vs . post-developed runoff values after detention are as follows : Peak Discharge From Forest Ridge Elementary School Location 5-Y ear( cfs) 10-Year( cfs) 25-Year(cfs) 50-Year(cfs) 100-Year( cfs) Pre-Developed 42 .5 47 .9 54 .8 62 .1 70 .0 Post-Developed 36.4 40.3 49 .8 59 .6 70 .0 CONCLUSION The construction of the Forest Ridge Elementary School and additional parking areas will cause an increase in runoff due to the increased impervious area from constructing the school building and the parking lots . The increases in runoff will be handled with one detention pond located within the limits of the school property. The detention pond effectively detains the post-developed runoff at or to less than the pre-developed runoff rates for the storm events . 6 Forest Ridge Elementary School Sca le : = 2000 feet 1 inch ributary to ingCreek ibutary D ZONEAE . LIMIT OF DETAILED STUDY 0 --···~ .. 0 < 0 a: APPROXIMATE SCALE 1~E3 0 1000FEET I Ill TIOllAL FLOOD IMSUIAllCE PROGIAlll FIRM FLOOD INSURANCE RATE MAP BRAZOS COUNTY, TEXAS AND INCORPORATED AREAS PANEL 205 OF 250 (SEE MAP INDEX FOR ,ANEl...S NOT ,, .. NTEO) 1\1!(!.llllS: '2!!l!l!!!!l !ll!lH! lW ml! 4l!OOIJ 020S •111,:S 0205 ,.,.._lll~TMMN'~...._..~.__ .. _.., ........... ,,.., ......... COMIMJNTY MJMef:ft .._,. .aio...,_.,..a.._.on._.._.~frottheMlllfect -"""*'· MAP NUMBER 48041C0205 D MAP REVISED: FEBRUARY 9, 2000 l....J.--.~~~:=;:;:~rt'~f~th~abow~~rere~r~en~ce~d~~=~d~m~aP,p.lt1t~1£~h;b~ This is an otTicial copy of 8 po 100 0 ~ does not reflect changes was extracted usln~ F-MIT On-Line. ~::a~ubsequent to the date on the t:2,. or amendments which may h~"" t~';rmation about Nati onal Fl=d Insurance U title block. For the latest kproth ~E~A Flood Map Store atwww.msc.fema .gov Program flood map& chec e Appendix A 7 Forest Ridge Elementary School < 3: w 0 0:: ....I < < 0 LL w UJ z I-0 <:> 0:: :5 z < z < < ....I w u :5 J: z ....I "' w :Ii: ....I ~ I-< "' > w < ~ ~ ~ w (!) I-> I->z 0 < 0 0 I-(!) (!) 0.. I-o~ NO. AC. 0.45 0.6 0.95 ft. E02 1.07 1.07 0.00 0.00 0.48 234.0 E04 14.36 14.36 0.00 0.00 6.46 1100.0 P02 1.07 0.97 0.00 0.10 0.53 1.0 P03 0.92 0.92 0.00 0.00 0.41 1.0 P04 3.84 1.92 0.00 1.92 2.69 223.0 P05 3.03 2.27 0.00 0.77 1.75 238.0 P06 0.66 0.40 0.00 0.26 0.43 1.0 P06A 0.00 0.00 0.00 0.00 0.00 0.0 P07 0.08 0.00 0.08 0.00 0.05 1.0 P07A 0.08 0.00 0.08 0.00 0.05 1.0 P08 0.29 0.06 0.00 0.23 0.24 1.0 P09 0.36 0.08 0.00 0.29 0.31 1.0 P09A 0.00 0.00 0.00 0.00 0.00 0.0 P10 1.54 0.10 0.00 1.44 1.41 1.0 P11 1.15 0.00 0.00 1.15 1.10 1.0 P12 2.43 2.43 0.00 0.00 1.09 400.0 EXHIBIT 1 Rational Formula Drainage Area Calculations Forest Ridge Elementary School 3: 0 3: 3: ....I LL 0 0 0 ....I ....I z LL u.. ~ :5 0:: J: 0:: 0 u w I-w I-u ~....I I: (!) I: ....I 0 I-u w ....I :::> z :::>....I ....I -; w >< w "' 0 LL (!) ~ (!) ~ > u :::> ~ ft. ft. ft. ft/s min min In/Hr 7.0 1.0 1.0 1.2 3.2 10.0 31.0 1.0 1.0 1.2 15.5 15.5 1.0 1.0 1.0 10.4 0.0 10.0 1.0 1.0 1.0 10.4 0.0 10.0 8.0 575.0 4.0 1.6 8.6 10.0 9.0 300.0 1.8 1.5 6.1 10.0 1.0 1.0 1.0 10.4 0.0 10.0 0.0 1.0 1.0 19.8 0.0 10.0 1.0 1.0 1.0 10.4 0.0 10.0 1.0 1.0 1.0 10.4 0.0 10.0 1.0 1.0 1.0 10.4 0.0 10.0 1.0 1.0 1.0 10.4 0.0 10.0 0.0 1.0 1.0 19.8 0.0 10.0 1.0 1.0 1.0 10.4 0.0 10.0 1.0 1.0 1.0 10.4 0.0 10.0 11.0 1.0 1.0 1.2 5.7 10.0 Pre Development Flow (TOTAL) Post Development Flow (TOTAL) Flow Increase (CFS) 6.33 5.11 6.33 6.33 6.33 6.33 6.33 6.33 6.33 6.33 6.33 6.33 6.33 6.33 6.33 6.33 N a cfs 3.0 33.0 3.4 2.6 17.0 11.1 2.7 0.0 0.3 0.3 1.5 1.9 0.0 8.9 6.9 6.9 36.1 63.6 I 21.s I EXHIBIT 1 !2 In/Hr 7.7 6.3 7.7 7.7 7.7 7.7 7.7 7.7 7.7 7.7 7.7 7.7 7.7 7.7 7.7 7.7 It) a cfs 3.7 40.6 4.1 3.2 20.7 13.4 3.3 0.0 0.3 0.3 1.9 2.4 0.0 10.9 8.4 8.4 44.3 77.3 I 33.o] 0 !: In/Hr 8.6 7.1 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 8.6 0 .... a cfs 4.2 45.8 4.6 3.6 23.2 15.1 3.7 0.0 0.4 0.4 2.1 2.6 0.0 12.2 9.5 9.4 50.0 86.7 r 36.Su I It) ~ In/Hr 9.9 8.1 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9 9.9 It) N a cfs 4.8 52.4 5.2 4.1 26.5 17.2 4.2 0.0 0.4 0.4 2.4 3.0 0.0 13.9 10.8 10.8 57.2 99.1 I 41.9 I 0 !2 In/Hr 11.1 9.2 11.1 11.1 11.1 11.1 11.1 11.1 11.1 11.1 11.1 11.1 11.1 11.1 11.1 11.1 0 It) a cfs 5.4 59.4 5.9 4.6 29.9 19.5 4.8 0.0 0.5 0.5 2.7 3.4 0.0 15.8 12.2 12.2 64.8 112.0 0 0 !: In/Hr 12.5 10.4 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 0 0 .... a cfs 6.0 67.0 6.7 5.2 33.6 21.9 5.4 0.0 0.6 0.6 3.0 3.8 0.0 17.7 13.7 13.7 73.0 125.8 I 47.2 I I s2.s I 4/1/2004 0370-dra.xls EXHIBIT 2 INLET COMPUTATIONS Forest Ridge Elementary School ~ O' 0'1= 0'1= O'= ~ . .d • "'O "'O ~ ~a a ac ac ac = ~ c.~ ~ ~ r"' • < J.. J.. = = J.. = -~ "'O ~ rJ1 '""= '"" '-' 0 c c ""' = ""' = c = ..... ~ """ > <z ~ Q> ~ ~ c~ c~ ..... ~ · ~ t · "g -t g' c ~ c ~ ..... ..... rJ1 c l"J "". "'O '> "'O "". ~ ""' <c:~ = = rri..,, rri..,, ""'"' z...., -O"' c Q> -~ ~ ~ ~ .9 .~ .~ !::_ ~ !::_ ~ ..... ~ ~ -; ~· ~ ,..,""' "'O ~· ~ ~ ~ "' "' ~CJ ~CJ =CJ .::: ..... ~ -= Q> Q> > ""' Q> Q> in ~ = 1>< = 1>< = c DESCRIPTION · · c ""' ""' Q OQ Q Q M~ in~ ...-4~ -E-c u ~ ~ ~ u < < Curb Inlet Grate Inlet ---f------~·----~·------1---.----.---~------------~--~-~---.1·--·--~--~--cfs cfs ft ft ft cfs sq-ft sq-ft P04 P06 10 23.2 3.3 6.7 10.4 P04 23.2 Recessed Low Point Inlet 2.33 9.93 10 ---1--------1--P 06 P03 10 3.7 0.5 I.I 1.7 P06 3.7 Proposed Grate Inlet 0.8 2.43 1.52 ___ _!2_ P07 P08 I 00 0.6 0.0 0.0 0.0 P07 0.6 Proposed Grate Inlet 0.5 1.99 0.28 I P07A--P09 100 o.61-· 0.0 0.0 0.0 P07A 0.6 Proposed Grate Inlet 0.5 1.99 0.28 -i--__ Po8 ____ ----p11---c--JO---2.1 0.3 0.6 0.9 P08 2.1 Proposed Grate Inlet ,__ _____ ---0.6 2.18 0.96 --_I --_P09 1---~-10 2.6 0.4 0.8 1.2 P09 2.6 Proposed Grate Inlet 1 2.8 -~ __21_'!_ ___!_ I---------------------·---i---------,__. ------l----·------------·------1------------->--·----------·---·· -----!--·------------------------------------· - ---·-----· -------·-·-1---·-·---··----------1--------------·--· ·-------------···---------------·-------. ---------------------------------·---------------·-·------· ---------------------___ ------------- -__ ,..........._ ------------------------------· -----------·~-------------------------EXHIBIT 2 4/1/2004 0370-dra.xls EXHIBIT 3 PIPE SIZE CALCULATIONS Forest Ridge Elementary School I I I I I I I I I I I I I = I I ! I I t:)f) ·-= -IC I "' I ~ t:)f) -IC I e ~ ·-~ ~ "' Q. Q. 0 < I "" "O ~ "' ·-0 ~ u 0 ~ ~ ~ ~ -z ~ I --"O Q. "" rJ:1 rJ:1 "' ·-,..;j ~ = ~ ~ ~ = ~ z < = -~ 0 I ..... "' -IC c,.., ~ I t:)f) "O ·-1-1 ~ I ~ .e.. ~ 0 ~ -,..;j ·-= ~ 0 0 "' = 0 "O 0 0 0 ·-z ~ ~ ~s <S -"" 1-1 ~ ~ ~ ~ Z I r-. r-. I <24 " <24 " I I min ' # # Ac. yr cfs cfs # cfs O/o " P04 I POS I 2 .7 1 10 .0 ' 10 23.2 23 .2 1 23 .2 0.37 1 P05 P12 i 1.7 10 .0 100 21 .9 21 .9 1 21 .9 0 .33 1 P06 POSA 3.1 10 .5 10 2S .3 26.3 1 26 .3 0.48 POSA P09A 3.4 14.5 10 24 .9 24 .9 1 24 .9 0.42 PO? P08 0.0 10 .0 100 O.S 0 .7 1 0 .7 0 .01 P07A P09 0.0 10 .0 100 0 .6 0.7 1 0 .7 0 .01 P08 POSA 0.3 1 14 .3 10 2 .1 2 .6 1 2 .6 0.19 P09 P09A 0.4 14 .3 10 I 2 .S 3.2 1 3 .2 0 .29 P09A POND 3 .8 14 .8 10 27 .2 27 .2 1 I 27.2 0 .51 I I I *In cl ud es 25% Flow Increase fo r pipe sizes <2 7" d ia . ••See Pla n & P rofil e fo r pipe slope used (Pipe slope >o r= Fri ction slope) i I I ~ ~ N ~ 1-1 rJ:1 > fps [. 30 4 .7 30 4 .5 30 5.4 30 5.1 15 O.S 15 0.6 15 1 2 .2 15 2 .6 30 5.5 I I ! I I I I ~ e = ·-"O ~ = = ~ ~ -~ ~ ~ z .... @ 1 ~ ~I = ~ I ~ "" ~ I I i I I m in I· min 141 17S 92 107 148 149 24 28 138 0 .50 10.50 0 .66 10.S6 0 .29 10.78 ! 0 .35 14 .83 4 .29 14.29 4 .34 14 .34 0 .19 14 .48 0 .18 14.52 0.42 15 .24 1 4/1/20 04 037 0-dra .xls Exhib it 3 ~ = ~ 1-1 ~ = I I· l EXHIBIT 4 -Detention Pond STAGE-STORAGE/STAGE-DISCHARGE TABLE Forest Ridge Elementary School Elevation Area Area Inc. Volm. Volume Outlet 1 Outlet 2 (ft.) (sf.) (acres) (ac .-ft.) (ac.-ft.) Invert Elev. (ft.) 296 .1 0 Orifice Dia . (in .) or Weir Length (ft.) 15 0 Orifice ( cfs). Orifice ( cfs) 296 .1 -0 .001 0 .000 0.000 0.00 0.00 296 .5 53 0 .001 0.000 0 .000 2 .73 0.00 297 512 0 .012 0.003 0.003 4 .10 0.00 298 2,045 0 .047 0.027 0 .031 5 .95 0.00 299 6,614 0.152 0.094 0.125 7 .35 0.00 300 12,234 0 .281 0 .213 0 .338 11.05 0 .00 301 17,679 0.406 0 .341 0.680 12 .62 0 .00 302 23 ,347 0 .536 0.469 1.149 14 .02 0.00 **This Exhibit Represents the Pond in Drainage Area P12 EXHIBIT 4 Outlet 3 Outlet 4 0 300 .85 0 20 Orifice ( cfs) Orifice ( cfs) 0.00 0.00 0 .00 0 .00 0 .00 0.00 0.00 0.00 0.00 0.00 0 .00 0 .00 0.00 3.49 0.00 73.99 Total (cfs) 0 .00 2 .73 4.10 5.95 7.35 11 .05 16 .11 88.02 4/15/2004 0370-dra.xls OVERFLOW AREAS HYDROGRAPHS Forest Ridge Elementary School Even 25 Evant 50 Evan 100 .. J J J J "' J J J J 0 J J J J 8 ~ 0 0 0 0 ... 0 0 0 0 ., 0 0 0 0 ~ Q. 'E 'E 'E 'E l:a 'E 'E 'E 'E 1:0 'E 'E 'E 'E l:a f ~ . & & . . ~ 5 • ~ 6 ~ e 0 .: 3 t: 0 0 ·-3 t:: 0 ~3~ ~ollg 0 ~an g 0 0 .., :! :! :!: :!: .. .. .. .. ~ :! :!: :!: .. :!! g ~ :! :! :!: g .. .. g g E Jl c ,.. :I'. :I'. :I'. :I'. 8 !;.~ :I'. c3 ~& 0 0 c3 ~& x Q. Q. Q. 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0.0 o.o o.o 0.0 0.0 0.0 61.0 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 o.o 0.0 0.0 0.0 0.0 62.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 63.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 64.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 PEAK FLOWS I 26.5 4.2 2.4 3.0 4.5 29.9 4.8 2.7 3.4 9.2 33.6 5.4 3.0 3.8 14.3 0.00 Indicates inital condition EXHIBIT 5 0370-<lra.xls PROPOSED DETENTION POND ROUTING Forest Ridge Elementary School D.A. # D.A. # D.A.# D.A. # D.A. # D.A.# D.A.# D.A. # D.A. # Pond Routlna EVENT• 5 c ~ .. c 0 0 .c 0 'l ~ u:: 0. w .. 0 ~ z ~ ~ ~ J !l -i ~~ "' iii w ~ ~ ~ 0 .. .. 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2.5 0.3 0.3 1.4 1.8 6.3 0.0 38.0 73.6 699.6 726.2 13.3 300.45 3.1 2.4 8.2 6.3 0.0 33.2 2.8 39.4 42.2 16.0 14.5 9.4 2.3 0.2 0.2 1.3 1.7 5.9 0.0 35.5 66.5 745.5 773.1 13.8 300.54 2.9 2.2 7.6 5.9 0.0 32.4 2.6 39.9 42.5 17.0 13.4 8.7 2.1 0.2 0.2 1.2 1.5 5.5 0.0 33.0 63.4 785.6 814.0 14.2 300.62 2.7 2.1 7.1 5.5 0.0 31.5 2.4 38.6 41.0 18.0 12.4 8.1 2.0 0.2 0.2 1.1 1.4 5.0 0.0 30.4 58.3 819.9 849.0 14.6 300.69 2.5 1.9 6.5 5.1 0.0 30.5 2.2 37.2 39.5 19.0 11.4 7.4 1.8 0.2 0.2 1.0 1.3 4.6 0.0 27.9 53.3 848.5 878.2 14.9 300.75 2.3 1.7 6.0 4.6 0.0 29.5 2.0 35.9 38.0 20.0 10.3 6.7 1.6 0.2 0.2 0.9 1.2 4.2 0.0 25.4 48.2 871.6 901.8 15.1 300.80 2.0 1.6 5.4 4.2 0.0 28.4 1.9 34.6 36.5 21.0 9.3 6.0 1.5 0.2 0.2 0.8 1.1 3.8 0.0 22.8 43.1 889.3 919.8 15.3 300.83 1.8 1.4 4.9 3.8 0.0 27.2 1.7 33.3 35.0 22.0 8.3 5.4 1.3 0.1 0.1 0.7 0.9 3.4 0.0 20.3 38.0 901.6 932.4 15.4 300.86 1.6 1.3 4.4 3.4 0.0 26.0 1.5 32.0 33.5 23.0 7.2 4.7 1.2 0.1 0.1 0.7 0.8 2.9 0.0 17.8 33.0 908.7 939.6 15.5 300.87 1.4 1.1 3.8 2.9 0.0 24.8 1.3 30.7 32.0 24.0 6.2 4.0 1.0 0.1 0.1 0.6 0.7 2.5 0.0 15.2 27.9 910.7 941.7 15.5 300.88 1.2 1.0 3.3 2.5 0.0 23.5 1.1 29.4 30.5 25.0 5.2 3.4 0.8 0.1 0.1 0.5 0.6 2.1 0.0 12.7 22.8 907.7 938.6 15.5 300.87 1.0 0.8 2.7 2.1 0.0 22.1 0.9 28.1 29.0 26.0 4.1 2.7 0.7 0.1 0.1 0.4 0.5 1.7 0.0 10.1 17.8 899.7 930.5 15.4 300.86 0.8 0.6 2.2 1.7 0.0 20.7 0.7 26.7 27.5 27.0 3.1 2.0 0.5 0.1 0.1 0.3 0.4 1.3 0.0 7.6 12.7 887.0 917.5 15.2 300.83 0.6 0.5 1.6 1.3 0.0 19.2 0.6 25.4 26.0 28.0 2.1 1.3 0.3 0.0 0.0 0.2 0.2 0.8 0.0 5.1 7.6 869.5 899.7 15.1 300.79 0.4 0.3 1.1 0.8 0.0 17.7 0.4 24.1 24.5 29.0 1.0 0.7 0.2 0.0 0.0 0.1 0.1 0.4 0.0 2.5 2.5 847.5 877.1 14.8 300.75 0.2 0.2 0.5 0.4 0.0 16.2 0.2 22.8 23.0 30.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 820.9 850.0 14.6 300.69 0.0 0.0 0.0 0.0 0.0 14.6 0.0 21.5 21.5 31.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 792.3 820.9 14.3 300.64 0.0 0.0 0.0 0.0 0.0 14.3 0.0 20.2 20.2 32.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 764.4 792.3 14.0 300.58 0.0 0.0 0.0 0.0 0.0 14.0 0.0 18.9 18.9 33.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 737.0 764.4 13.7 300.52 0.0 0.0 0.0 0.0 0.0 13.7 0.0 17.5 17.5 34.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 710.1 737.0 13.4 300.47 0.0 0.0 0.0 0.0 0.0 13.4 0.0 16.2 16.2 35.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 683.8 710.1 13.2 300.42 0.0 0.0 0.0 0.0 0.0 13.2 0.0 14.9 14.9 36.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 658.0 683.8 12.9 300.36 0.0 0.0 0.0 0.0 0.0 12.9 0.0 13.6 13.6 57.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 228.5 244.5 8.0 299.18 0.0 0.0 0.0 0.0 0.0 8.0 0.0 0.0 0.0 58.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 212.9 228.5 7.8 299.13 0.0 0.0 0.0 0.0 0.0 7.8 0.0 0.0 0.0 59.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 197.6 212.9 7.6 299.08 0.0 0.0 0.0 0.0 0.0 7.6 0.0 0.0 0.0 60.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 182.7 197.6 7.5 299.03 0.0 0.0 0.0 0.0 0.0 7.5 0.0 0.0 0.0 61.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 168.1 182.7 7.3 298.95 0.0 0.0 0.0 0.0 0.0 7.3 0.0 0.0 0.0 62.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 153.8 168.1 7.1 298.85 0.0 0.0 0.0 0.0 0.0 7.1 0.0 0.0 0.0 63.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 139.8 153.8 7.0 298.75 0.0 0.0 0.0 0.0 0.0 7.0 0.0 0.0 0.0 64.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 126.1 139.8 6.9 298.65 0.0 0.0 0.0 0.0 0.0 6.9 0.0 0.0 0.0 PEAK FLOWS I 20.7 13.4 3.3 0.3 0.3 1.9 2.4 8.4 0.0 50.7 15.5 300.88 36.4 42.5 0.00 Indicates inital condition EXHIBIT 6 0370-dra.xls PROPOSED DETENTION POND ROUTING Forest Ridge Elementary School 0.A.# O.A. # O.A. # D.A. # O.A.# O.A.# O.A.# O.A.# 0.A.# Pond Routlna EVENT• 10 c ~ .. c 0 0 ~ 0 'i j u: w ... " ~ z c !1 ~ : ~~ '" iii i w e ~ ::E :; ! ~ ... :; ~ .. 1-!!.! !!. ~ ~ ~ .... m :!: N ~ ~ c N .., 0 ~ N 0 0 :i: :i: 0:: 0 fl) : :i: 0 0:: 0:: ~ ... 0 0 e~ :z: ... ... ... ... ... u N N 0 ... w w Qo 23.2 15.1 3.7 0.4 0.4 2.1 2.6 9.4 4.6 3.6 12.2 9.5 4.2 45.8 Tc 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 15.5 Inc 1.0 1.0 1.0 1.0 2.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Time els els els els els els els els els els els els els els ft els els els els c1s c1s els els els 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5.7 0.0 0.0 0.0 296.10 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 2.3 1.5 0.4 0.0 0.0 0.2 0.3 0.9 0.0 5.7 17.1 0.0 5.7 3.3 296.71 0.5 0.4 1.2 0.9 0.0 6.3 0.4 3.0 3.4 2.0 4.6 3.0 0.7 0.1 0.1 0.4 0.5 1.9 0.0 11.4 28.5 8.2 17.1 4.5 297.20 0.9 0.7 2.4 1.9 0.0 10.4 0.8 5.9 6.8 3.0 7.0 4.5 1.1 0.1 0.1 0.6 0.8 2.8 0.0 17.1 39.9 26.0 36.6 5.3 297.67 1.4 1.1 3.7 2.8 0.0 14.3 1.2 8.9 10.1 4.0 9.3 6.0 1.5 0.2 0.2 0.8 1.1 3.8 0.0 22.8 51.2 53.6 65.8 6.1 298.11 1.8 1.4 4.9 3.8 0.0 18.0 1.7 11.9 13.5 5.0 11.6 7.5 1.9 0.2 0.2 1.0 1.3 4.7 0.0 28.5 62.6 91.8 104.8 6.5 298.39 2.3 1.8 6.1 4.7 0.0 21.4 2.1 14.8 16.9 6.0 13.9 9.1 2.2 0.2 0.2 1.3 1.6 5.7 0.0 34.2 74.0 140.5 154.5 7.0 298.75 2.8 2.1 7.3 5.7 0.0 24.9 2.5 17.8 20.3 7.0 16.2 10.6 2.6 0.3 0.3 1.5 1.9 6.6 0.0 39.9 85.4 199.2 214.5 7.7 299.08 3.2 2.5 8.5 6.6 0.0 28.5 2.9 20.7 23.7 8.0 18.5 12.1 3.0 0.3 0.3 1.7 2.1 7.6 0.0 45.5 96.8 267.6 284.6 8.5 299.31 3.7 2.8 9.8 7.6 0.0 32.3 3.3 23.7 27.0 9.0 20.9 13.6 3.3 0.3 0.3 1.9 2.4 8.5 0.0 51.2 108.2 345.6 364.4 9.4 299.56 4.1 3.2 11.0 8.5 0.0 36.3 3.7 26.7 30.4 10.0 23.2 15.1 3.7 0.4 0.4 2.1 2.6 9.4 0.0 56.9 111.0 432.8 453.7 10.5 299.85 4.6 3.6 12.2 9.5 0.0 40.3 4.2 29.6 33.8 11.0 22.0 14.3 3.5 0.4 0.4 2.0 2.5 9.0 0.0 54.1 105.3 520.9 543.8 11.5 300.08 4.4 3.4 11.6 9.0 0.0 39.8 4.0 32.6 36.6 12.0 20.9 13.6 3.3 0.3 0.3 1.9 2.4 8.5 0.0 51.2 99.6 601.6 626.2 12.3 300.25 4.1 3.2 11.0 8.5 0.0 39.1 3.7 35.6 39.3 13.0 19.7 12.8 3.1 0.3 0.3 1.8 2.3 8.0 0.0 46.4 93.9 675.1 701.2 13.1 300.40 3.9 3.0 10.4 8.0 0.0 38.4 3.5 38.5 42.1 14.0 18.5 12.1 3.0 0.3 0.3 1.7 2.1 7.6 0.0 45.5 68.2 741.5 769.0 13.7 300.53 3.7 2.8 9.8 7.6 0.0 37.6 3.3 41.5 44.8 15.0 17.4 11.3 2.8 0.3 0.3 1.6 2.0 7.1 0.0 42.7 82.6 801.1 829.8 14.4 300.65 3.4 2.7 9.2 7.1 0.0 36.7 3.1 44.5 47.6 16.0 16.2 10.6 2.6 0.3 0.3 1.5 1.9 6.6 0.0 39.9 76.9 853.8 883.6 14.9 300.76 3.2 2.5 8.5 6.6 0.0 35.8 2.9 45.0 47.9 17.0 15.1 9.8 2.4 0.3 0.3 1.4 1.7 6.1 0.0 37.0 71.2 899.9 930.7 15.4 300.66 3.0 2.3 7.9 6.1 0.0 34.8 2.7 43.5 46.2 18.0 13.9 9.1 2.2 0.2 0.2 1.3 1.6 5.7 0.0 34.2 65.5 939.5 971.1 15.8 300.94 2.8 2.1 7.3 5.7 0.0 33.7 2.5 42.0 44.5 19.0 12.8 8.3 2.0 0.2 0.2 1.2 1.5 5.2 0.0 31.3 59.8 972.4 1005.0 16.3 301.00 2.5 2.0 6.7 5.2 0.0 32.7 2.3 40.6 42.8 20.0 11.6 7.5 1.9 0.2 0.2 1.0 1.3 4.7 0.0 28.5 54.1 994.3 1032.1 18.9 301.04 2.3 1.8 6.1 4.7 0.0 33.8 2.1 39.1 41.2 21.0 10.4 6.8 1.7 0.2 0.2 0.9 1.2 4.2 0.0 25.6 48.4 1007.5 1048.4 20.5 301.06 2.1 1.6 5.5 4.3 0.0 33.9 1.9 37.6 39.5 22.0 9.3 6.0 1.5 0.2 0.2 0.8 1.1 3.8 0.0 22.8 42.7 1013.6 1055.9 21.2 301.07 1.8 1.4 4.9 3.8 0.0 33.1 1.7 36.1 37.8 23.0 8.1 5.3 1.3 0.1 0.1 0.7 0.9 3.3 0.0 19.9 37.0 1013.8 1056.3 21.2 301.07 1.6 1.2 4.3 3.3 0.0 31.6 1.5 34.6 36.1 24.0 7.0 4.5 1.1 0.1 0.1 0.6 0.8 2.8 0.0 17.1 31.3 1009.5 1050.9 20.7 301.06 1.4 1.1 3.7 2.8 0.0 29.6 1.2 33.1 34.4 25.0 5.8 3.8 0.9 0.1 0.1 0.5 0.7 2.4 0.0 14.2 25.6 1001.3 1040.8 19.7 301.05 1.1 0.9 3.1 2.4 0.0 27.2 1.0 31.7 32.7 26.0 4.6 3.0 0.7 0.1 0.1 0.4 0.5 1.9 0.0 11.4 19.9 990.1 1027.0 18.4 301.03 0.9 0.7 2.4 1.9 0.0 24.4 0.8 30.2 31.0 27.0 3.5 2.3 0.6 0.1 0.1 0.3 0.4 1.4 0.0 8.5 14.2 976.5 1010.1 16.8 301.01 0.7 0.5 1.8 1.4 0.0 21.3 0.6 28.7 29.3 28.0 2.3 1.5 0.4 0.0 0.0 0.2 0.3 0.9 0.0 5.7 8.5 958.7 990.7 16.0 300.98 0.5 0.4 1.2 0.9 0.0 19.0 0.4 27.2 27.6 29.0 1.2 0.8 0.2 0.0 0.0 0.1 0.1 0.5 0.0 2.8 2.8 935.8 967.3 15.8 300.93 0.2 0.2 0.6 0.5 0.0 17.2 0.2 25.7 25.9 30.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 907.7 938.6 15.5 300.87 0.0 0.0 0.0 0.0 0.0 15.5 0.0 24.3 24.3 31.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 877.4 907.7 15.1 300.81 0.0 0.0 0.0 0.0 0.0 15.1 0.0 22.8 22.8 32.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 847.7 877.4 14.8 300.75 0.0 0.0 0.0 0.0 0.0 14.8 0.0 21.3 21.3 33.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 818.6 847.7 14.5 300.69 0.0 0.0 0.0 0.0 0.0 14.5 0.0 19.8 19.8 34.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 790.1 818.6 14.2 300.63 0.0 0.0 0.0 0.0 0.0 14.2 0.0 18.3 18.3 35.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 762.2 790.1 14.0 300.58 0.0 0.0 0.0 0.0 0.0 14.0 0.0 16.8 16.8 36.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 734.9 762.2 13.7 300.52 0.0 0.0 0.0 0.0 0.0 13.7 0.0 15.4 15.4 57.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 276.4 293.6 8.6 299.33 0.0 0.0 0.0 0.0 0.0 8.6 0.0 0.0 0.0 58.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 259.6 276.4 8.4 299.28 0.0 0.0 0.0 0.0 0.0 8.4 0.0 0.0 0.0 59.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 243.3 259.6 8.2 299.23 0.0 0.0 0.0 0.0 0.0 8.2 0.0 0.0 0.0 60.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 227.3 243.3 8.0 299.17 0.0 0.0 0.0 0.0 0.0 8.0 0.0 0.0 0.0 61.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 211.7 227.3 7.8 299.12 0.0 0.0 0.0 0.0 0.0 7.8 0.0 0.0 0.0 62.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 196.4 211.7 7.6 299.07 0.0 0.0 0.0 0.0 0.0 7.6 0.0 0.0 0.0 63.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 181.5 196.4 7.4 299.02 0.0 0.0 0.0 0.0 0.0 7.4 0.0 0.0 0.0 64.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 167.0 181.5 7.3 298.95 0.0 0.0 0.0 0.0 0.0 7.3 0.0 0.0 0.0 PEAK FLOWS I 23.2 15.1 3.7 0.4 0.4 2.1 2.6 9.4 0.0 56.9 21.2 301.07 40.3 47.9 0.00 indicates lnital condition EXHIBIT 7 0370-dra.xls PROPOSED DETENTION POND ROUTING Forest Ridge Elementary School D.A. # D.A. # D.A. # D.A. # D.A.# D.A. # D.A.# D.A.# 0.A.# Pond Routlna EVENT• 25 c ~ .. ., c 0 :c 0 &; N 0 g ; li: a. ~:a w i !§~ : " I! ;;:; c ~ ~ ;t ~ ! ~ r; i i w ~ ID + ... ~.:lg ~ &. ... ., "' ... .. .. N E .:l c lE c c ~ c N ::: 0 N ;:; >-!!l ,.. 0 0 0 0 ii: ii: ii: 0.: c3 ~& 0 ~ ~ ~ 0 0 0.: 0.: at;.& e£ 0 g 11.'l :i: a. a. a. Q. u 0 Q. Q. Q. w w ao 26.5 17.2 4.2 0.4 0.4 2.4 3.0 10.8 5.2 4.1 13.9 10.8 4.8 52.4 Tc 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 15.5 Inc 1.0 1.0 1.0 1.0 2.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Time els els els els els els els els els els els els els cf• II els cf• els els els els cfs els els 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6.5 0.0 0.0 0.0 296.10 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 2.6 1.7 0.4 0.0 0.0 0.2 0.3 1.1 0.0 6.5 19.5 0.0 6.5 3.5 296.78 0.5 0.4 1.4 1.1 0.0 6.9 0.5 3.4 3.9 2.0 5.3 3.4 0.8 0.1 0.1 0.5 0.6 2.2 0.0 13.0 32.5 10.4 19.5 4.6 297.26 1.0 0.8 2.8 2.2 0.0 11.4 1.0 6.8 7.7 3.0 7.9 5.2 1.3 0.1 0.1 0.7 0.9 3.2 0.0 19.5 45.5 31.7 42.9 5.6 297.82 1.6 1.2 4.2 3.2 0.0 15.8 1.4 10.2 11.6 4.0 10.6 6.9 1.7 0.2 0.2 1.0 1.2 4.3 0.0 26.0 58.5 64.7 77.2 6.2 298.19 2.1 1.6 5.6 4.3 0.0 19.8 1.9 13.6 15.5 5.0 13.2 8.6 2.1 0.2 0.2 1.2 1.5 5.4 0.0 32.5 71.5 109.9 123.3 6.7 298.53 2.6 2.0 7.0 5.4 0.0 23.7 2.4 17.0 19.3 6.0 15.9 10.3 2.5 0.3 0.3 1.4 1.8 6.5 0.0 39.0 84.5 166.9 181.4 7.3 298.95 3.1 2.4 8.4 6.5 0.0 27.7 2.9 20.4 23.2 7.0 18.5 12.1 3.0 0.3 0.3 1.7 2.1 7.5 0.0 45.5 97.5 235.2 251.4 8.1 299.20 3.7 2.8 9.8 7.6 0.0 31.9 3.3 23.8 27.1 8.0 21.2 13.8 3.4 0.4 0.4 1.9 2.4 8.6 0.0 52.0 109.7 314.6 332.7 9.1 299.46 4.2 3.2 11.2 8.6 0.0 36.3 3.8 27.1 30.9 9.0 23.8 15.5 3.8 0.4 0.4 2.1 2.7 9.7 -0.9 57.6 118.2 404.0 424.3 10.1 299.75 4.7 3.7 12.5 9.7 0.9 41.7 4.3 30.5 34.8 10.0 26.5 17.2 4.2 0.4 0.4 2.4 3.0 10.8 -4.5 60.5 119.6 499.7 522.2 11.3 300.04 5.2 4.1 13.9 10.8 4.5 49.8 4.8 33.9 38.7 11.0 25.2 16.4 4.0 0.4 0.4 2.3 2.9 10.2 -2.7 59.1 116.7 594.9 619.3 12.2 300.23 5.0 3.9 13.2 10.3 2.7 47.3 4.5 37.3 41.8 12.0 23.8 15.5 3.8 0.4 0.4 2.1 2.7 9.7 -0.9 57.6 112.9 685.3 711.6 13.2 300.42 4.7 3.7 12.5 9.7 0.9 44.7 4.3 40.7 45.0 13.0 22.5 14.6 3.6 0.4 0.4 2.0 2.6 9.2 0.0 55.3 107.3 770.1 798.2 14.0 300.59 4.5 3.5 11.9 9.2 0.0 43.0 4.0 44.1 48.2 14.0 21.2 13.8 3.4 0.4 0.4 1.9 2.4 8.6 0.0 52.0 100.8 847.7 877.4 14.8 300.75 4.2 3.2 11.2 8.6 0.0 42.1 3.8 47.5 51.3 15.0 19.9 12.9 3.2 0.3 0.3 1.8 2.3 8.1 0.0 48.8 94.3 917.4 948.5 15.6 300.89 3.9 3.0 10.5 8.1 0.0 41.1 3.6 50.9 54.5 16.0 18.5 12.1 3.0 0.3 0.3 1.7 2.1 7.5 0.0 45.5 87.8 977.8 1011.6 16.9 301.01 3.7 2.8 9.8 7.6 0.0 40.8 3.3 51.5 54.8 17.0 17.2 11.2 2.7 0.3 0.3 1.6 2.0 7.0 0.0 42.3 81.3 1021.4 1065.5 22.1 301.08 3.4 2.6 9.1 7.0 0.0 44.2 3.1 49.8 52.9 18.0 15.9 10.3 2.5 0.3 0.3 1.4 1.8 6.5 0.0 39.0 74.8 1051.4 1102.6 25.6 301.13 3.1 2.4 8.4 6.5 0.0 46.1 2.9 48.1 51.0 19.0 14.6 9.5 2.3 0.2 0.2 1.3 1.7 5.9 0.0 35.8 68.3 1070.4 1126.2 27.9 301.16 2.9 2.2 7.7 5.9 0.0 46.6 2.6 46.4 49.0 20.0 13.2 8.6 2.1 0.2 0.2 1.2 1.5 5.4 0.0 32.5 61.8 1080.5 1138.7 29.1 301.18 2.6 2.0 7.0 5.4 0.0 46.1 2.4 44.7 47.1 21.0 11.9 7.8 1.9 0.2 0.2 1.1 1.4 4.9 0.0 29.3 55.3 1083.5 1142.3 29.4 301.19 2.4 1.8 6.3 4.9 0.0 44.7 2.1 43.0 45.2 22.0 10.6 6.9 1.7 0.2 0.2 1.0 1.2 4.3 0.0 26.0 48.8 1080.6 1138.8 29.1 301.18 2.1 1.6 5.6 4.3 0.0 42.7 1.9 41.3 43.2 23.0 9.3 6.0 1.5 0.2 0.2 0.8 1.1 3.8 0.0 22.8 42.3 1073.0 1129.4 28.2 301.17 1.8 1.4 4.9 3.8 0.0 40.1 1.7 39.6 41.3 24.0 7.9 5.2 1.3 0.1 0.1 0.7 0.9 3.2 0.0 19.5 35.8 1061.6 1115.3 26.8 301.15 1.6 1.2 4.2 3.2 0.0 37.1 1.4 37.9 39.4 25.0 6.6 4.3 1.1 0.1 0.1 0.6 0.8 2.7 0.0 16.3 29.3 1047.1 1097.4 25.1 301.13 1.3 1.0 3.5 2.7 0.0 33.6 1.2 36.2 37.4 26.0 5.3 3.4 0.8 0.1 0.1 0.5 0.6 2.2 0.0 13.0 22.8 1030.1 1076.4 23.1 301.10 1.0 0.8 2.8 2.2 0.0 29.9 1.0 34.6 35.5 27.0 4.0 2.6 0.6 0.1 0.1 0.4 0.5 1.6 0.0 9.8 16.3 1011.1 1052.9 20.9 301.07 0.8 0.6 2.1 1.6 0.0 26.0 0.7 32.9 33.6 28.0 2.6 1.7 0.4 0.0 0.0 0.2 0.3 1.1 0.0 6.5 9.8 990.5 1027.4 18.4 301.03 0.5 0.4 1.4 1.1 0.0 21.9 0.5 31.2 31.6 29.0 1.3 0.9 0.2 0.0 0.0 0.1 0.2 0.5 0.0 3.3 3.3 968.1 1000.2 16.1 300.99 0.3 0.2 0.7 0.5 0.0 17.8 0.2 29.5 29.7 30.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 939.7 971.3 15.8 300.94 0.0 0.0 0.0 0.0 0.0 15.8 0.0 27.8 27.8 31.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 908.8 939.7 15.5 300.87 0.0 0.0 0.0 0.0 0.0 15.5 0.0 26.1 26.1 32.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 878.5 908.8 15.2 300.81 0.0 0.0 0.0 0.0 0.0 15.2 0.0 24.4 24.4 33.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 848.8 878.5 14.9 300.75 0.0 0.0 0.0 0.0 0.0 14.9 0.0 22.7 22.7 34.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 819.7 848.8 14.6 300.69 0.0 0.0 0.0 0.0 0.0 14.6 0.0 21.0 21.0 35.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 791.1 819.7 14.3 300.63 0.0 0.0 0.0 0.0 0.0 14.3 0.0 19.3 19.3 36.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 763.2 791.1 14.0 300.58 0.0 0.0 0.0 0.0 0.0 14.0 0.0 17.6 17.6 57.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 294.2 311.8 8.8 299.39 0.0 0.0 0.0 0.0 0.0 8.8 0.0 0.0 0.0 58.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 277.0 294.2 8.6 299.34 0.0 0.0 0.0 0.0 0.0 8.6 0.0 0.0 0.0 59.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 260.2 277.0 8.4 299.28 0.0 0.0 0.0 0.0 0.0 8.4 0.0 0.0 0.0 60.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 243.8 260.2 8.2 299.23 0.0 0.0 0.0 0.0 0.0 8.2 0.0 0.0 0.0 61.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 227.8 243.8 8.0 299.18 0.0 0.0 0.0 0.0 0.0 8.0 0.0 0.0 0.0 62.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 212.2 227.8 7.8 299.12 0.0 0.0 0.0 0.0 0.0 7.8 0.0 0.0 0.0 63.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 196.9 212.2 7.6 299.07 0.0 0.0 0.0 0.0 0.0 7.6 0.0 0.0 0.0 64.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 182.1 196.9 7.4 299.03 0.0 0.0 0.0 0.0 0.0 7.4 0.0 0.0 0.0 PEAK FLOWS I 26.5 17.2 4.2 0.4 0.4 2.4 3.0 10.8 0.0 60.5 29.4 301.19 49.8 54.8 0.00 indicates inltal condition EXHIBITS 0370-dra.xls PROPOSED DETENTION POND ROUTING Forest Ridge Elementary School D.A. # D.A.# D.A.# D.A. # D.A.# D.A.# D.A.# D.A.# D.A.# Pond Routlna EVENT• so c ~ .. 5: c 0 :il .c 0 a ~ ii: ~ ~=a w + l:o ... 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Q. w w Qo 29.9 19.5 •.8 0.5 0.5 2.7 3.• 12.2 5.9 4.6 15.8 12.2 5.4 59 .• Tc 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 15.5 Inc 1.0 1.0 1.0 1.0 2.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Time els els els els els els els els els els els cf• els cfs ft els els els els els els els els els 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 7.4 0.0 0.0 0.0 296.10 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 3.0 1.9 0.5 0.1 0.1 0.3 0.3 1.2 0.0 7.4 22.1 0.0 7.4 3.7 296.86 0.6 0.5 1.6 1.2 0.0 7.6 0.5 3.8 4.4 2.0 6.0 3.9 1.0 0.1 0.1 0.5 0.7 2.4 0.0 14.7 36.8 12.7 22.1 4.7 297.32 1.2 0.9 3.2 2.4 0.0 12.4 1.1 7.7 8.8 3.0 9.0 5.8 1.4 0.2 0.2 0.8 1.0 3.7 0.0 22.1 51.5 37.6 49.4 5.9 297.97 1.8 1.4 4.7 3.7 0.0 17.5 1.6 11.5 13.1 4.0 12.0 7.8 1.9 0.2 0.2 1.1 1.4 4.9 0.0 29.4 66.2 76.4 89.1 6.3 298.28 2.4 1.8 6.3 4.9 0.0 21.7 2.1 15.4 17.5 5.0 15.0 9.7 2.4 0.3 0.3 1.3 1.7 6.1 0.0 36.8 80.9 128.8 142.6 6.9 298.66 3.0 2.3 7.9 6.1 0.0 26.1 2.7 19.2 21.9 6.0 18.0 11.7 2.9 0.3 0.3 1.6 2.1 7.3 0.0 44.1 95.6 194.5 209.6 7.6 299.07 3.6 2.8 9.5 7.3 0.0 30.7 3.2 23.1 26.3 7.0 21.0 13.6 3.3 0.4 0.4 1.9 2.4 8.5 0.0 51.5 109.2 272.9 290.0 8.5 299.32 4.2 3.2 11.0 8.5 0.0 35.5 3.8 26.9 30.7 8.0 23.9 15.6 3.8 0.4 0.4 2.2 2.7 9.8 ·1.0 57.8 118.8 3Q2.9 382.1 9.6 299.62 4.7 3.7 12.6 9.8 1.0 41.5 4.3 30.8 35.1 9.0 26.9 17.5 4.3 0.5 0.5 2.4 3.1 11.0 ·5.1 61.0 125.3 460.1 481.7 10.8 299.93 5.3 4.1 14.2 11.0 5.1 50.6 4.8 34.6 39.4 10.0 29.9 19.5 4.8 0.5 0.5 2.7 3.4 12.2 ·9.2 64.3 127.0 561.6 585.4 11.9 300.17 5.9 4.6 15.8 12.2 9.2 59.6 5.4 38.4 43.8 11.0 28.4 18.5 4.5 0.5 0.5 2.6 3.2 11.6 ·7.2 62.7 123.7 662.7 688.6 12.9 300.37 5.6 4.4 15.0 11.6 7.2 56.7 5.1 42.3 47.4 12.0 26.9 17.5 4.3 0.5 0.5 2.4 3.1 11.0 ·5.1 61.0 120.4 758.6 786.4 13.9 300.57 5.3 4.1 14.2 11.0 5.1 53.7 4.8 46.1 51.0 13.0 25.4 16.6 4.1 0.4 0.4 2.3 2.9 10.4 -3.1 59.4 . 117.2 849.3 879.0 14.9 300.75 5.0 3.9 13.4 10.4 3.1 50.7 4.6 50.0 54.5 14.0 23.9 15.6 3.8 0.4 0.4 2.2 2.7 9.8 -1.0 57.8 112.9 935.0 966.4 15.7 300.93 4.7 3.7 12.6 9.8 1.0 47.6 4.3 53.8 58.1 15.0 22.5 14.6 3.6 0.4 0.4 2.0 2.6 9.1 0.0 55.1 106.6 1007.1 1047.9 20.4 301.06 4.4 3.4 11.8 9.2 0.0 49.3 4.0 57.7 61.7 16.0 21.0 13.6 3.3 0.4 0.4 1.9 2.4 8.5 0.0 51.5 99.2 1060.3 1113.6 26.7 301.15 4.2 3.2 11.0 8.5 0.0 53.6 3.8 58.4 62.1 17.0 19.5 12.7 3.1 0.3 0.3 1.8 2.2 7.9 0.0 47.8 91.9 1097.4 1159.5 31.1 301.21 3.9 3.0 10.2 7.9 0.0 56.1 3.5 56.5 59.9 18.0 18.0 11.7 2.9 0.3 0.3 1.6 2.1 7.3 0.0 44.1 84.5 1121.5 1189.3 33.9 301.25 3.6 2.8 9.5 7.3 0.0 57.0 3.2 54.5 57.8 19.0 16.5 10.7 2.6 0.3 0.3 1.5 1.9 6.7 0.0 40.4 77.2 1135.0 1206.0 35.5 301.27 3.3 2.5 8.7 6.7 0.0 56.7 3.0 52.6 55.6 20.0 15.0 9.7 2.4 0.3 0.3 1.3 1.7 6.1 0.0 36.8 69.8 1140.0 1212.2 36.1 301.28 3.0 2.3 7.9 6.1 0.0 55.3 2.7 50.7 53.4 21.0 13.5 8.8 2.2 0.2 0.2 1.2 1.5 5.5 0.0 33.1 62.5 1138.1 1209.9 35.9 301.27 2.7 2.1 7.1 5.5 0.0 53.2 2.4 48.8 51.2 22.0 12.0 7.8 1.9 0.2 0.2 1.1 1.4 4.9 0.0 29.4 55.1 1130.6 1200.6 35.0 301.26 2.4 1.8 6.3 4.9 0.0 50.4 2.1 46.8 49.0 23.0 10.5 6.8 1.7 0.2 0.2 0.9 1.2 4.3 0.0 25.7 47.8 1118.6 1185.8 33.6 301.24 2.1 1.6 5.5 4.3 0.0 47.0 1.9 44.9 46.8 24.0 9.0 5.8 1.4 0.2 0.2 0.8 1.0 3.7 0.0 22.1 40.4 1103.0 1166.4 31.7 301.22 1.8 1.4 4.7 3.7 0.0 43.3 1.6 43.0 44.6 25.0 7.5 4.9 1.2 0.1 0.1 0.7 0.9 3.0 0.0 18.4 33.1 1084.4 1143.4 29.5 301.19 1.5 1.1 3.9 3.1 0.0 39.1 1.3 41.1 42.4 26.0 6.0 3.9 1.0 0.1 0.1 0.5 0.7 2.4 0.0 14.7 25.7 1063.4 1117.4 27.0 301.15 1.2 0.9 3.2 2.4 0.0 34.7 1.1 39.1 40.2 27.0 4.5 2.9 0.7 0.1 0.1 0.4 0.5 1.8 0.0 11.0 18.4 1040.4 1089.1 24.3 301.11 0.9 0.7 2.4 1.8 0.0 30.1 0.8 37.2 38.0 28.0 3.0 1.9 0.5 0.1 0.1 0.3 0.3 1.2 0.0 7.4 11.0 1015.9 1058.8 21.4 301.07 0.6 0.5 1.6 1.2 0.0 25.3 0.5 35.3 35.8 29.0 1.5 1.0 0.2 0.0 0.0 0.1 0.2 0.6 0.0 3.7 3.7 990.1 1026.9 18.4 301.03 0.3 0.2 0.6 0.6 0.0 20.3 0.3 33.4 33.7 30.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 961.7 993.6 16.0 300.98 0.0 0.0 0.0 0.0 0.0 16.0 0.0 31.5 31.5 31.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 930.4 961.7 15.7 300.92 0.0 0.0 0.0 0.0 0.0 15.7 0.0 29.5 29.5 32.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 699.6 930.4 15.4 300.86 0.0 0.0 0.0 0.0 0.0 15.4 0.0 27.6 27.6 33.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 869.5 899.6 15.1 300.79 0.0 0.0 0.0 0.0 0.0 15.1 0.0 25.7 25.7 34.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 839.9 869.5 14.8 300.73 0.0 0.0 0.0 0.0 0.0 14.8 0.0 23.8 23.8 35.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 811.0 839.9 14.5 300.67 0.0 0.0 0.0 0.0 0.0 14.5 0.0 21.8 21.8 36.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 782.7 811.0 14.2 300.62 0.0 0.0 0.0 0.0 0.0 14.2 0.0 19.9 19.9 57.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 306.5 324.4 9.0 299.43 0.0 0.0 0.0 0.0 0.0 9.0 0.0 0.0 0.0 58.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 289.0 306.5 8.7 299.38 0.0 0.0 0.0 0.0 0.0 8.7 0.0 0.0 0.0 59.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 271.9 289.0 8.5 299.32 0.0 0.0 0.0 0.0 0.0 8.5 0.0 0.0 0.0 60.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 255.2 271.9 8.3 299.26 0.0 0.0 0.0 0.0 0.0 8.3 0.0 0.0 0.0 61.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 239.0 255.2 8.1 299.21 0.0 0.0 0.0 0.0 0.0 8.1 0.0 0.0 0.0 62.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 223.1 239.0 7.9 299.16 0.0 0.0 0.0 0.0 0.0 7.9 0.0 0.0 0.0 63.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 207.6 223.1 7.8 299.11 0.0 0.0 0.0 0.0 0.0 7.8 0.0 0.0 0.0 64.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 192.4 207.6 7.6 299.06 0.0 0.0 0.0 0.0 0.0 7.6 0.0 0.0 0.0 PEAK FLOWS 29.9 19.5 4.8 0.5 0.5 2.7 3.4 12.2 0.0 64.3 36.1 301.28 59.6 62.1 0370-dra.xls 0.00 indicates inital condition EXHIBITS PROPOSED DETENTION POND ROUTING Forest Ridge Elementary School D.A. # D.A.# D.A. # D.A. # D.A. # D.A. # D.A. # D.A. # D.A.# Pond Routina EVENT• 100 ~ c ~ J .. c 0 0 .c "' ii: Q 'l . ~ .,, M w > ~=a ,, " .. 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"' N E w c :IE + ~ ~ c N .., <> E w c N ~ ... !!! <> <> <> CL (J !;.~ 0 ii! ~ 0 ii: <> CL CL 8 ~~ e. ~ <> gt;j "' 0. 0. 0. 0. 0. 0. 0. u £ 0 0. 0. w w Qo 33.6 21.9 5.4 0.6 0.6 3.0 3.8 13.7 6.7 5.2 17.7 13.7 6.0 67.0 Tc 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 15.5 Inc 1.0 1.0 1.0 1.0 2.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Time els els els els els els els els els els els els els els ft els cf• cf• cfs cfs els cfs cfs cfs 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 8.3 0.0 0.0 0.0 296.10 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.0 3.4 2.2 0.5 0.1 0.1 0.3 0.4 1.4 0.0 8.3 24.8 0.4 8.3 3.9 296.94 0.7 0.5 1.8 1.4 0.0 8.3 0.6 4.3 4.9 2.0 6.7 4.4 1.1 0.1 0.1 0.6 0.8 2.7 0.0 16.5 41.3 15.5 25.1 4.8 297.39 1.3 1.0 3.5 2.7 0.0 13.5 1.2 6.7 9.9 3.0 10.1 6.6 1.6 0.2 0.2 0.9 1.2 4.1 0.0 24.8 57.8 44.8 56.8 6.0 298.05 2.0 1.5 5.3 4.1 0.0 19.0 1.8 13.0 14.8 4.0 13.5 8.8 2.1 0.2 0.2 1.2 1.5 5.5 0.0 33.0 74.3 89.6 102.6 6.5 298.38 2.7 2.1 7.1 5.5 0.0 23.8 2.4 17.3 19.7 5.0 16.8 10.9 2.7 0.3 0.3 1.5 1.9 6.8 0.0 41.3 90.9 149.8 164.0 7.1 298.82 3.3 2.6 8.9 6.9 0.0 28.7 3.0 21.7 24.7 6.0 20.2 13.1 3.2 0.3 0.3 1.8 2.3 8.2 0.0 49.6 106.9 224.7 240.6 8.0 299.17 4.0 3.1 10.6 8.2 0.0 33.9 3.6 26.0 29.6 7.0 23.5 15.3 3.8 0.4 0.4 2.1 2.7 9.6 -0.5 57.3 118.3 313.5 331.6 9.0 299.46 4.7 3.6 12.4 9.6 0.5 39.8 4.2 30.3 34.6 8.0 26.9 17.5 4.3 0.5 0.5 2.4 3.1 11.0 -5.1 61.0 125.7 411.4 431.8 10.2 299.78 5.3 4.1 14.2 11.0 5.1 49.9 4.8 34.7 39.5 9.0 30.3 19.7 4.8 0.5 0.5 2.7 3.5 12.3 -9.7 64.7 133.0 514.3 537.1 11.4 300.07 6.0 4.6 15.9 12.3 9.7 60.0 5.4 39.0 44.4 10.0 33.6 21.9 5.4 0.6 0.6 3.0 3.8 13.7 -14.3 68.3 134.8 622.2 647.3 12.5 300.29 6.7 5.2 17.7 13.7 14.3 70.0 6.0 43.3 49.4 11.0 32.0 20.8 5.1 0.5 0.5 2.9 3.7 13.0 -12.0 66.5 131.2 729.8 757.1 13.6 300.51 6.3 4.9 16.8 13.0 12.0 66.7 5.7 47.7 53.4 12.0 30.3 19.7 4.8 0.5 0.5 2.7 3.5 12.3 -9.7 64.7 127.5 831.7 861.0 14.7 300.72 6.0 4.6 15.9 12.3 9.7 63.3 5.4 52.0 57.4 13.0 28.6 18.6 4.6 0.5 0.5 2.6 3.3 11.6 -7.4 62.8 123.8 927.8 959.2 15.7 300.91 5.7 4.4 15.1 11.7 7.4 59.8 5.1 56.3 61.5 14.0 26.9 17.5 4.3 0.5 0.5 2.4 3.1 11.0 -5.1 61.0 120.2 1010.1 1051.7 20.8 301.06 5.3 4.1 14.2 11.0 5.1 60.4 4.6 60.7 65.5 15.0 25.2 16.4 4.0 0.4 0.4 2.3 2.9 10.3 -2.6 59.2 116.5 1073.7 1130.3 28.3 301.17 5.0 3.9 13.3 10.3 2.6 63.5 4.5 65.0 69.5 16.0 23.5 15.3 3.6 0.4 0.4 2.1 2.7 9.6 -0.5 57.3 111.0 1122.3 1190.2 34.0 301.25 4.7 3.6 12.4 9.6 0.5 64.6 4.2 65.6 70.0 17.0 21.9 14.2 3.5 0.4 0.4 2.0 2.5 6.9 0.0 53.7 103.2 1157.1 1233.3 38.1 301.31 4.3 3.4 11.5 6.9 0.0 66.2 3.9 63.6 67.6 16.0 20.2 13.1 3.2 0.3 0.3 1.8 2.3 8.2 0.0 49.6 95.0 1179.0 1260.3 40.7 301.34 4.0 3.1 10.6 6.2 0.0 66.6 3.6 61.5 65.1 19.0 16.5 12.0 3.0 0.3 0.3 1.7 2.1 7.5 0.0 45.4 86.7 1190.0 1273.9 42.0 301.36 3.7 2.8 9.7 7.5 0.0 65.6 3.3 59.3 62.6 20.0 16.6 10.9 2.7 0.3 0.3 1.5 1.9 6.6 0.0 41.3 78.5 1192.2 1276.7 42.2 301.36 3.3 2.6 6.9 6.9 0.0 63.9 3.0 57.1 60.1 21.0 15.1 9.6 2.4 0.3 0.3 1.4 1.7 6.2 0.0 37.2 70.2 1167.4 1270.7 41.7 301.36 3.0 2.3 6.0 6.2 0.0 61.1 2.7 55.0 57.7 22.0 13.5 6.8 2.1 0.2 0.2 1.2 1.5 5.5 0.0 33.0 61.9 1176.7 1257.6 40.4 301.34 2.7 2.1 7.1 5.5 0.0 57.7 2.4 52.6 55.2 23.0 11.6 7.7 1.9 0.2 0.2 1.1 1.3 4.8 0.0 26.9 53.7 1161.4 1238.7 38.6 301.31 2.3 1.6 6.2 4.6 0.0 53.6 2.1 50.6 52.7 24.0 10.1 6.6 1.6 0.2 0.2 0.9 1.2 4.1 0.0 24.6 45.4 1142.4 1215.1 36.4 301.28 2.0 1.5 5.3 4.1 0.0 49.3 1.6 46.5 50.3 25.0 6.4 5.5 1.3 0.1 0.1 0.6 1.0 3.4 0.0 20.6 37.2 1120.3 1167.6 33.8 301.25 1.7 1.3 4.4 3.4 0.0 44.6 1.5 46.3 47.8 26.0 6.7 4.4 1.1 0.1 0.1 0.6 0.8 2.7 0.0 16.5 26.9 1095.7 1157.5 30.9 301.21 1.3 1.0 3.5 2.7 0.0 39.5 1.2 44.1 45.3 27.0 5.0 3.3 0.8 0.1 0.1 0.5 0.6 2.1 0.0 12.4 20.6 1069.2 1124.7 27.7 301.16 1.0 0.6 2.7 2.1 0.0 34.2 0.9 42.0 42.9 26.0 3.4 2.2 0.5 0.1 0.1 0.3 0.4 1.4 0.0 6.3 12.4 1041.0 1069.8 24.4 301.12 0.7 0.5 1.6 1.4 0.0 26.7 0.6 39.6 40.4 29.0 1.7 1.1 0.3 0.0 0.0 0.2 0.2 0.7 0.0 4.1 4.1 1011.5 1053.4 20.9 301.07 0.3 0.3 0.9 0.7 0.0 23.1 0.3 37.6 37.9 30.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 961.0 1015.7 17.3 301.02 0.0 0.0 0.0 0.0 0.0 17.3 0.0 35.5 35.5 31.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 949.2 981.0 15.9 300.96 0.0 0.0 0.0 0.0 0.0 15.9 0.0 33.3 33.3 32.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 916.1 949.2 15.6 300.69 0.0 0.0 0.0 0.0 0.0 15.6 0.0 31.1 31.1 33.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 687.6 916.1 15.3 300.83 0.0 0.0 0.0 0.0 0.0 15.3 0.0 29.0 29.0 34.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 857.7 687.6 14.9 300.77 0.0 0.0 0.0 0.0 0.0 14.9 0.0 26.6 26.6 35.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 628.4 657.7 14.6 300.71 0.0 0.0 0.0 0.0 0.0 14.6 0.0 24.6 24.6 36.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 799.7 628.4 14.3 300.65 0.0 0.0 0.0 0.0 0.0 14.3 0.0 22.5 22.5 57.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 317.2 335.4 9.1 299.47 0.0 0.0 0.0 0.0 0.0 9.1 0.0 0.0 0.0 58.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 299.5 317.2 8.9 299.41 0.0 0.0 0.0 0.0 0.0 6.9 0.0 0.0 0.0 59.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 282.2 299.5 6.7 299.35 0.0 0.0 0.0 0.0 0.0 6.7 0.0 0.0 0.0 60.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 265.3 262.2 6.5 299.30 0.0 0.0 0.0 0.0 0.0 8.5 0.0 0.0 0.0 61.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 246.7 265.3 6.3 299.24 0.0 0.0 0.0 0.0 0.0 8.3 0.0 0.0 0.0 62.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 232.6 246.7 6.1 299.19 0.0 0.0 0.0 0.0 0.0 6.1 0.0 0.0 0.0 63.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 216.9 232.6 7.9 299.14 0.0 0.0 0.0 0.0 0.0 7.9 0.0 0.0 0.0 64.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 201.5 216.9 7.7 299.09 0.0 0.0 0.0 0.0 0.0 7.7 0.0 0.0 0.0 PEAK FLOWS I 33.6 21.9 5.4 0.6 0.6 3.0 3.8 13.7 0.0 68.3 42.2 301.36 70.0 70.0 0.00 indicates lnital condition EXHIBIT 10 0370-dra.xls 45 .0 40 .0 35 .0 30.0 -25 .0 J!? (.) - 0 20.0 15 .0 10.0 5 .0 0.0 0 5 10 Forest Ridge Elementary School 5 Year Event Hydrograph --. 15 20 25 30 Time (min) EXHIBIT 11 35 --Combined Routed Flow -----·Total Existing 4/15/2004 0370-dra .xls 40 .0 _,___ Forest Ridge Elementary School 10 Year Event Hydrograph ' ' ~ --Combined Routed Flow ~ 30 .0 ~-----~~-----------~-~------~-----·Total Existing 0 10.0 ~--!---'~-------------------------~ 0 5 10 15 20 25 30 35 Time (min) EXHIBIT 12 4/15/2004 0370 -dra.xls Forest Ridge Elementary School 25 Year Event Hydrograph ' ' ~ --Combined Routed Flow ~ 30.0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~-----Total Existing 0 0 5 10 15 20 25 Time (min) EXHIBIT 13 30 ' ' 35 4/15/2004 0370 -dra .xls -~ (J -0 0 5 10 Forest Ridge Elementary School 50 Year Event Hydrograph ... 15 20 25 30 Time (min) EXHIBIT 14 35 --Combined Routed Flow · · · · · Total Existing 4/15/2004 0370-dra .xls Forest Ridge Elementary School 100 Year Event Hydrograph 80.0 ~-------------------------------, 70 .0 -l--------~---~~-----------------1 50.0 -l------~•L-~----------~------------1 ~ --Combined Routed Flow ~ 40.0 -+------~~------------~-~-----~-----·To~IE~sting a 30 .0 -+-----~~-----------------\------'---~ 20 .0 --!----~-,!--------------------------- 10 .0 -+--/---,'__ _________________________ _ 0 .0 ---1----A----~--------------~-------~- 0 5 10 15 20 25 30 35 Time (min) EXHIBIT 15 4/15/2004 0370-dra .xls