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HomeMy WebLinkAboutSW7960401_HISTORICAL FILE_20201020STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW L�( DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE COMPLIANCE EVALUATION INSPECTION DOC DATE YYYYMMDD Vd rl)\,6. ROY COOPER Governor MICHAEL S. REGAN Secretary BRIAN WRENN Director NORTH CAROLINA Environmental Quality October 20, 2020 Walker Boys Investment Holdings, LLC Attention: Tara S. Walker, President 112 Sound Shore Drive Kill Devil Hills, NC 27948 Subject: Stormwater Permit Renewal/Ownership Change Stormwater Management Permit SW7960401 Colington Speedway Dare County Dear Tara S. Walker: A Division of Energy, Mineral, and Land Resources file review has determined that Stormwater Permit SW960401 for a stormwater treatment system consisting of two infiltration basins serving Colington Speedway located at 1064 Colington Road, Kill Devil Hills, NC expires on March 6, 2021. This is a reminder that permit renewal applications are due 180 days prior to expiration. We do not have a record of receiving a renewal application. This permit was originally issued to Jimmie Summerell. A search of the Dare County tax records indication that the property is now owned by Walker Boys Investment Holdings, LLC. The Coastal stormwater rules and the NC General Statutes require a stormwater permit for this project. Stormwater permits are not automatically transferred when property is sold. Please submit a completed permit renewal application and a stormwater ownership transfer application along with a $505.00 processing fee. Permit application forms for renewal and ownership transfer can be found on our website at: htt 3�s //deg) tic gov/about/divisions/enerw-mineral-land-resources/energy-mineral-land- rules/stormwater-program/post-construction. North Carolina General Statutes and the Coastal Stormwater rules require that this property be covered under a stormwater permit. Failure to maintain a permit subjects the owner to assessment of civil penalties. If you have questions, please feel free to contact me at (252) 948-3923. 1 will be glad to discuss this by phone or meet with you. If you would like, I can e-mail you a copy of the application form. You can request a copy by e-mailing me at roger, thorpe cDncdenr.gov. Sincerely, Ro Ver K. Thorpe Environmental Engineer —� North Carolina Department of Environmental Quality 1 Division of Energy. Mineral and Land Resources Washington Regional Office 1 043 Washington Square Mall I Washington. North Carolina 2788q >52g56.6481 . LIMITED LIABILITY COMPANY ANNUAL REPORT ram„` NAME OF LIMITEDLIABILITY COMPANY:' _Walken Boys investment Holdings,. LLCM ..... .... ... ... .... SECRETARYOF SiATE,ID;NUMBER: 1773966 - � STATE OF FORMATION: NC E -Filap Annual Report _ : - 4773%8: : 0 REPORT FOR TflECALENQAR YEAR; 6283 2020': _ _ _ 41212020 CA202009302:00 SECTION A: REGISTERED AGENT'S INFORMATION ❑Char'Bes- 1. NAME OFIREGISTERED AGl 'Walker, Tara su merell ... I SIGNATURE(OF. THE NEW REGISTERED AGENT: 1 0^G � �/'1%-7l/•E.T% T 3.fREGISTERED AGENT OFFICE STREET ADDRESS 6 COUNTY '4: REGISTERED AGENT OFFICE: MAILING ADDRESS 1.12 Soundshore Drive Killbevil Hills, NC 27948 Dare County 112 Soun&hore Drive _. _.. . Kill Devil Hills, NC 27948 SECTION.B: ERINC,IPAL OFFICE INFORMATION 1.:DESCRIP,TION OF NATURE OF BUSINES611 . Real Estate Renf21511nV2StfttentS'-.....__ . .. ... .. _ .... 3. PRINCIPAL OFFICE EMAIL: 2: PRINCIPAL OFFICE PHONE,NUMBERi (252) 207-2626' Privacy Redaotion .4. PRINCIPAL OFFICE STREET. ADDRESS :5. PRINCIPAL OFFICE MAILING' ADDRESS 1:12 Soundshore.Drive' .. 112 Soundshore Drive ... ... Kill'Devil Hills, NC 27948 Kill Devil Hills, NC 279A8 6. Select one of the4Nlowing if sfigpllcable. (Optional see Instructions) The company is veteran-owned:small'business ❑ The; company Is,a service -disabled veteran -owned small: business SECTION C: COMPANY OFFICIALS (Enteradditional colnpany,offlUals'iri:SectbnE.y NAME: Tara SWalked ................ NAME: ;Rodney L Walker NAME: TITLE':' President:..,_ TITLE:, `Vice President TITLE. ADDRESS _..__.... .. ADDRESS: _- . _.._. ADDRESS: 1.12 Soundstiore Drive 112 Soundshore Drive Kill Devil Hills, NC 27948 Kill Devil Hills, NC 27948 SECTION Ot CERTIFICATION'. OF ANNUAL REPORT, Section D must be completed'in its entrety;by a personhiusiness entity, Tara S Walker _ 4/2/2020 .. SIGNATURE.......DATE ........ .. ...:..... Form must be,sigmed by a ConrpanyOfftraal listed unpar Section Col TMs Imm.. Tara S Walker President PYiil or Type Name of Company Otfioal - " PnMar Type TRIG of CoinpanY Caclal! This'Annual Report has beenfiledelectronically. "' MAIL T0; 9oeretery of Stales Bue'neea Ropn:tratbn.DNkion, Past OlFco Box 29525, Ralogh: NC 2762841525; OMB NO.2502-0265 i' A U.S. DEPARTMENT OF HOUSING A URBANDEVELOPMENT SETTLEMENT STATEMENT B. TYPE OF LOAN: 1,❑FHA 2.❑FMHA 3.❑CONV. UNINS. 4.❑VA 5.❑CONV. INS. 6. RILE NUMBER: 13734002 7. LOAN NUMBER: S. MORTGAGE INS CASE NUMBER: C. NOTE: Mslormstumshedlogimy uasfatementolaUu iwnlbmentmtfs A oh,ped to aM by the settlement agent amsto.n. Rems madm07POC)' were paid whide the olosing, they am shown here /orntamstanal powses and are not lotluded in the toots. 1. anon uan.00xarmar4amvn D. NAME AND ADDRESS OF BORROWER: WaVz Boys lnv.tmoni Hok6ngs, LLC 112 Swo&harm Diwe KiM Deal Hilt NO 27948 E. NAMEANDADORESS OF SELLER: Jimmie D. Summeal ad Wfe Dona D. Summmdl 19668 OH Fany landing Rand East Lakq NO 27953 F NAME AND ADDRESS OF LENDER: Jmmm D B O na D. Summed G. PROPERTY LOCATION: 1064 Cclrgton Rmi K0 Devi Hills, NC 27948 Dam Canty, Nmh Carina Tat ID TIOB099 ON Teat or Parcel of Lad! located in Atlantic ToAnsNo H. SETTLEMENTAGENT: 56-1900818 Gray 8 Lloyd, LLP. PLACE OF SETTLEMENT 3120 N. Catalan Hwy, Ste. 101 KAI DWI Hills. NO 27948 I. SETTLEMENT DATE: January 4, 2019 J. SUMMARYOF BORROWER'S TRANSACTION K. SUMMARY OF SELLER'S TRANSACTION 100. GROSS AMOUNT DUE FROM BORROWER: 47. GROSS AMOUNT DUE TO SELLER: 101. Contract Saks Price 40E000. DO 40t. Contract Saks Price 1081500.00 102. Persona 402. Pe gnat Property 103. Saltbnent Charges to Barlow Lino 14001 1873.6E 403. IN. 404, 105. 405. AcpfsI,,ehfs For RemPaidSelene advance A'swants For lens Peed By Seder. acvvnm 06. C' 1Tw.n Tax¢ to 406. C' (Rmn Tars to 107. County Tan¢ to 407. Cotinty Tax. 0 108. Ass¢smmts to 408. Asse wts to IN. 4N. 110, 410. 111. 411. 112, 412. 120. GROSS AMOUNT DUE FROM BORROWER 409,873.68 420 GROSS AMOUNT DUE 7O SELLER 408,000.N 200. AMOUNTS PAID BY OR IN BEHALF OF BORROWER: 500. REDUCTIONS IN AMOUNT DUE TO SERER: 201. Dal or arrest money 501. Ex OaPosit See Instructions) 202, PrncipalAm t al New Lmn s 502, Shckmml Charas to Sdk4(I-We 1400 B 705.95 203. Edslino Inniskwisl taker suboct to 1 503. Exietln kar s lacer sub' to 2N. 1 504, Paydf Rrst Modg a to Rat National Balk 101.wI.32 205. 505, Payoff SCfmd Mmgage mfi. 505. 207, 507. 208, Purchase Money Nee 283000.00 508. Purchase Money Note M'".00 209. 509, 'AcIpstraeolsfixtemsUnpadH Seller Adustmen¢ For lemeU Serer 210. ,C ?wen Tm¢ tan 1 510. C' Tw.n Tar. to 211, CmM Tar. OV01119 to 01/05119 1 36.40 511. Cann Tar¢ 01101119 to 01/05/19 36.40 212. Assessmmis to 512. Assevonetts to 213. 513, 214, 514. 215. 515. 216. 516. 21T 517. 21LL 518. 219. 519. 220. TOTAL PAR) BY/FOR BORROWER 283,036.40 520. TOTAL REDUCTIOVAMOUNTDVE SELLER 392,823.67 300. CASH AT SETTLEMENT FROMTO BORROWER: 6W. CASH AT SETTLEMENT TO/FROM SELLER: 301. Gross Ammar Due Fran Boar a(I-he 1201 1 409873,68 601, Gross Amount Due TO Shca(Line 420 IN p00.00 302. Les Arrant Pad Boeve Bwe 220 (Line R 283,036.40 602. Less Reductions Due Stacy Line 5201 ( 39N.3,67 30.i. CASH( X FROM)( TO)BORROWER ( 126,837.28 603. CASH( X TO)( FROM)SELLER 15,176.33 L. SETTLEMENT CHARGES 700. TOTAL COMMISSION Based on Price $ @ Y, ronrruu oon &85 SE MENT wnraaa smens SEi1LEMEW Drvrsion of Como n pone 700) as Follows 702. S to m 704 n 800. ITEMS PAYABLE IN CONNECTION WITH LOAN 801. Lwn 0minafort Fee 1.0000 % to 802, Lwn Discount "/, to 803. A22msal Fee to 804. GroJit Rgoat to 805. Lmdds lns wlim Fee to 806. Mortgage Ins App.Fee to 807. Assum tbn Fce to 808. 809. 810. 811. 900. ITEMS REOURED BY LENDER TO BE PAID IN ADVANCE 901. Interest Fran to @ $ /day days °el 902. MIPTalns for UloOfL� for mmthsto 903. Hazard Insurance Prenium to 1.0 yearo to ON. 905. 10p0. RESERVES DEPOSITED WITH LENDER 13D1. Hazard In.,. moths $ Pa moth 1002. 1h>f enanmce mmihs @ $ Ito moth 1003, C /Ton Taxers mmihs @ $ Oa moth 1004. Camty Taxes months @ e mmlh 1005. A -,a ants mmihs @ $ por moth 1006. s a month 1007. moths o moth 1008. months @ $ pa month 1100. TITLE CHARGES 1101. Sole ent or Closing Fee to Gay 8 LJoyd. LLP. Discounted 850.00 350.00 1102. Abstract a Tde Swmh to 1103. Title In Ion to 1104, Toe Insurance Binda to 1105. Document Prqoaai. to Gray & Loyd. LL.P. Note& Deed of Tmst 100.00 1106. NOW Foes to 1107. Aftcmeys Foa to ndodesabove uem numt m indudes abo. gem numbers: 1109. Lenders Coverage $ 111 D. 0+41ees Gooage $ fill. 1112. 1113. 1114. LD Phma'GopylFw to Gray& Uoyd,LLP. 38.00 38.00 1115, O , ht Cooria Fp ( Gray&U ,LLP. 1116. Canoelalm Fee Gray& Uoyd LLP. 1117. 1118. 1200. GOVERNMENT RECORDING ANDTRAKSFER CHARGES 1201. Rmav Fee;: Deed $ 26.00 : Mo . e $ 64.00; Releases S 90.00 1202.C" Zoun TMStan s: 1 %Lmd Transfer Tax 4,080.WMwome 1201 Stale Ta Slan s: Re ue Stan s 816.00; MM a 12D4. s 1205. R istad Deeds 1300. ADDTIONALSETTLEMENT CHARGES 1301. Su to d8.705.95 1302. PmT In action to 1303. 2018 RET.. 1. D. Can Tax Off. D08099000 304. 305. 1400. TOTAL SETTLEMENT CHARGES Enter m Urea 103, Secbo J and 502, SmUm K 1.BTJ.BB Cetifiocl to be a two copy. pomanri;r.�eczlal ACKNOWLEDGMENT OF RECEIPT OF SETTLEMENT STATEMENT Borrower: Walker Bays Investment Hddings, LLC Seller: Jimmie D. Summerdl and wife. Dana D. Summerdl Lender: Jimmie D & Dana D. Summerdl Settlement Agent: Gray & Uoyd, LLP. (252)441-4338 Place of Settlement: 3120 N. Croatan Hwy., Ste. 101 Kill Devil Hills, NC 27W Settlement Date: January 4, 2019 Property Location: 1064 Cdington Road Kill Devil Hills, NC 27948 Dare County, North Carolina Tax ID 008099-000 Tract or Parcel of Lard located in Atlantic Township I have carefully reviewed the HUD-1 Settlement Statement and to the hest of my knowledge and belief, it is a true and accurate statement of all receipts and dsbursements made on my account or by me in this transaction. I further certify that I have received a copy of the HUD-1 Settlement Statement. Walker Boys Investment Holding LLC BY: Rodney Lorenzo Walker, Manager BY: Tara Summerdl Walker, Manager Jimmie D. Summerdl Dana D. Summerdl To the best of my knowledge, the HUD-1 Settlement Statement is a true and accurate account of the funds which were received and have been or will be disbursed by the undersigned as part of the settlement of this transaction E. Crouse Gray, Jr. Settlement Agent WARNNG: It is a crime to kr wmgly make false stalemenls to the United States on this or any similar form penalties upon conviction can mcludea Ore and Imlelaonment For details see: The to US. Coda Sectlon 1u01 end Smflon 1010. (137M4 002. PFD/13734-002/3) ^9 Michael F. Easley, Governor William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Alan W. Klimek, P.E. Director Division of Water Quality DIVISION OF WATER QUALITY March 6, 2007 Mr. Jimmie Summerell 112 Colleton Lane Kill Devil Hills, NC 27948 Subject: StQ,rmwater Permit No. SW7960401 Colington Speedway High Density Stormwater Project Dare County Dear Mr. Summerell: The Washington Regional Office received your completed Stormwater Application for the subject project on December 18, 2006. Staff review of the plans and specifications has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H.1000. We are forwarding Permit No. SW7960401 dated March 6, 2007 to Mr. Jimmie Summerell. This permit shall be effective from the date of issuance until March 6, 2017 and shall be subject to the conditions and limitations as specified therein. Please pay special attention to the Operation and Maintenance requirements in this permit. Failure to establish an adequate system for operation and maintenance of the stormwater management system will result in future compliance problems. If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing upon written request within thirty (30) days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611- 7447. Unless such demands are made this permit shall be final and binding. North Carolina Division of Water Quality Internet: h2o.encstate.nc.us 943 Washington Square Mall . Phone: 252-946-6481 Washington, NC 27889 FAX 252-946-9215 An Equal CpportunitylAffrmative Action Employer —50%Recycledll0%Post Consumer Paper NorthCarolina Naturally Mr. Jimmie Summerell March 6, 2007 Page Two If you have any questions, or need additional information concerning this matter, please contact Mr. Bill Moore at (252)948- 3919. Sincerely, AI- J - =--- Al Hodge, Regional Supervisor Surface Water Protection Section Washington Regional Office cc: Performance Engineering Dare County Planning/Inspections WARO Stormwater Files Central Files State Stormwater Management Systems Permit No. SW7960401 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES. DIVISION OF WATER QUALITY STATE STORMWATER MANAGEMENT PERMIT HIGH DENSITY DEVELOPMENT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO Mr. Jimmie Summerell Dare County FOR THE continued operation and maintenance of stormwater management systems in compliance with the provisions of 15A NCAC 2H.1000 (hereafter referred to as the "stormwater rules") and the approved stormwater management plans and. specifications and other supporting data as attached and on file with and approved by the Division of Water Quality and considered a part of this permit for (2) infiltration basins to serve Colington Speedway located Colington Road at Kill Devil Hills, NC. This permit shall be effective from the date of issuance until March 6, 2017, and shall be subject to the following specified conditions and limitations: I. DESIGN STANDARDS 1. This permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data. 2. This stormwater system has been approved for the management. of stormwater runoff as described on page 4 of this permit, the Project Data Sheet. 3. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. 3 DIVISION OF WATER QUALITY. PROJECT DATA Project Name: Permit Number: Location: Applicant: Mailing Address: Application Date: Water Body Receiving Stormwater Runoff: Classification of Water Body: Total Site Area:. Total Impervious Surfaces Allowed: Basin Depths: Required Storage Volume: Provided Storage Volume: Provided Surface Area: Storage Elevations: n Colington Speedway SW7960401 Dare County Mr. Jimmie Summerell 112 Colleton Lane Kill Devil Hills, NC 27948 08/09/2006; original 12/18/2006; complete Colington Creek SC 2.34 acres 64,731 sf 1.50 - Basin A 1.00 - Basin B 1575 cf - Basin A 3729 cf - Basin B 3336 cf - Basin A 8838 cf - Basin B 1599 sf - Basin A 7272 sf - Basin B 4.3 ft Basin A 4.1 ft - Basin B 4. No homeowner/lot owner/developer shall be allowed to fill in, alter, or pipe any vegetative practices (such as swales) shown on the approved plans as part of the stormwater management system without submitting a revision to the permit and receiving approval from the Division. 5. The following items will require a modification to the permit: a. Any revision to the approved plans, regardless of size b. Project name change C. Transfer of ownership d. Redesign 'or addition to the approved amount of built - upon area e. Further subdivision of the project area. In addition, the Director may determine that other revisions to the project should require a modification to the permit. 6. The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements of the permit. Within the time frame specified in the notice, the permittee shall submit a written time schedule to the Director for modifying the site to meet minimum requirements. The permittee shall provide copies of revised plans and certification in writing to the Director that the changes have been made. II. SCHEDULE OF COMPLIANCE 1. The permittee will comply with the following schedule for construction and maintenance of the stormwater management system. a. The stormwater management system shall be constructed in its entirety, vegetated and operational for its intended use prior to the construction of any built - upon surfaces except roads. b. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 2. The facilities must be properly maintained and operated at all times. The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals. 3. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency including, but not limited to: 5 a. Semi-annual scheduled inspections (every 6 months) b. Sediment removal . C. Mowing and revegetation of side slopes d. Immediate repair of eroded areas e. Maintenance of side slopes in accordance with approved plans and specifications f. Debris removal and unclogging of outlet structure, orifice device and catch basins and piping. 4. Records of maintenance activities must be kept and made available upon request to authorized personnel of DWQ. The records will indicate the date, activity, name of person performing the work and what actions were taken. 5. This permit shall become voidable unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data. 6. Upon completion of construction and prior to operation of this permitted facility, a certification must be received from an appropriate designer for the system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation. Mail the Certification to the Washington Regional Office, 943 Washington Square Mall, Washington, North Carolina, 27889, attention Division of Water Quality. 7. A copy of the approved plans and specifications shall be maintained on file by the Permittee for a minimum of five years from the date of the completion of construction. III. GENERAL CONDITIONS 1. This permit is not transferable. In the event there is a desire for the facilities to change ownership, or there is a name change of the Permittee, a formal permit request must be submitted to the Division of Water Quality accompanied by an application fee, documentation from the parties involved, and other supporting materials as may be appropriate. The approval of this request will be considered on its merits and may or may not be approved. 2. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to enforcement action by the Division of Water Quality, in accordance with North Carolina General Statute 143-215.6(a) to 143-215.6(c). 3. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances which may be imposed by other government agencies (local, state, and federal) which have jurisdiction. 6 4. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee .shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems. 5. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a permit modification, revocation and reissuance or termination does not stay any permit condition. 6. At least 6 months prior to the expiration date, the permittee shall request that this permit be renewed. Permit issued this the 6 th day of March, 2007. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION Alah W. Klimek, P.E., Director Division of Water Quality . By Authority of the Environmental Permit Number SW7960401 7 Management Commission Stormwater Permit SW7960401 (2) Infiltration Basins Colington Speedway Kill Devil Hills, NO Designer's Certification as a duly registered Professional Engineer in the State of North Carolina, having been authorized to observe (periodically/weekly/full time) the construction of the project, for (Project) (Project Owner) hereby state that to the best of my abilities, due care and diligence was used in the observation of the project ,construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications. Signature Registration Number Date s' '14oBERT ✓. STL-wART, ✓R., PE Civil Engineer - NC & VA Registration PERF RMANEE ENGINEERING . "" 6604 CARATOKE HWY. t POWELLS POINT, NC 27966 • (251)491-8354VHONE • (252)491-5112/FAX . . COLINGTON SPEEDWAY - PERMIT:#SW7960401 RENEWAL APPLICATION DARE COUNTY " NARRATIVE DESCRIPTION AND, UPDATE OF PROJECT STATUS REVISED DECEMBER 15, 2006 This, narrative is prepared,to provide an update regarding the as -built condition of the existing facility and'the stormwater management BMP's. In March of 2006 the Div. of . Water Quality notified the permittee, Mr. Jimmie Summerell of the requirement to renew the stormwater permit referenced above and to provide the Designer's Certification for the as -built condition of the project and the associated infiltration basins. The Engineer was asked to inspect the project to confirm conformance with the approved plans. The initial inspection resulted in the observation that there were certain minor inconsistencies between the site plan as designed and as built. Therefore, Mr: Robert.Cummins, P.L.S. ` was retained to perform a physical survey, to reflect the existing features and topographic information. Based on the as built survey by" Mr. Cummins, calculations for coverage and required storage volume in the two infiltration basins were revised. Mr. Summerell. regraded the existing basins to restore uniform bottom elevations and proper side slopes.. The deviations between the, approved plan were generally very slight and the stormwater. BMP was functioning effectively. The most significant inconsistency is the presence of a small area of standing water in the northern section of Basin "B". Mr. Summerell reports " that he was unaware of this low area, which can be described as a shallow pond, prior to clearing the areato construct the designed basins. The "pond", approximately•1'-3' deep, was in a heavily wooded area, near the property line, and was not detected prior to'Mr. •Summerell's developing of the siteAt is proposed to leave this wet area in its current state due to the adverse environmental impacts of filling it or digging it deeper. Thebasin, functions very effectively and recent observations have shown the normally dry areas to " draw down in approximately three days after torrential rains, well in excess of I". Prior to Mr. Summerell's ownership, the tract was used as a concrete production plant., . The previous owners left sizable masses of concrete buried and/or partially buried in- numerous locations. These concrete deposits have created significant constraints to the ' owner in attempting to grade the basins to the exact lines and slopes originally specified. ' However, the original basins were in fact constructed in substantial conformance with the original plans and at no time was there any direct discharge of run-off stormwater into. the' adjacent on -site wetlands.or on to.the adjacent properties. The BMP's, ascurrently constructed,'provide storage, capacity equivalent to'a 2.12* * inch rainfall event for Basin "A" and a,2.37** inch rainfall event for•Basin "B". Summary" Calculations for the drainage areas and associated basins are provided on the plan sheet submitted with the Permit -Renewal Application package. Complete calculations are also provided on separate sheet. . The 250 feet of marsh, through which'overflow water sheet flows, is adjacent to Colington Creek. This creek is non -SA waters. Therefore the design storm event is F' rainfall. The basins, as constructed, have capacities more than double the design storm runoff'volume, as demonstrated in the.attached calculations. COLINGTON SPEEDWAY - STORMWATER PERMIT #SW7960401 STORMWATER BMP CALCULATIONS Ia sc t _ g*0 ASIN A ��26 D GE AREA = 23,326 S.F. Z31 IMPERVIOUS AREA - BUILDINGS, OFFICE 1,111 S.F. SHOP 816 S.F. PAVED AREAS, 17,634 S.F. TOTAL IMPERVIOUS AREA = 19,561 S.F. (83.9%) USING SCHULER EQUATION, Rv = 0.05 + 0.009(83.9) = 0.81 INCHES PER INCH FOR 1" RAINFALL EVENT, DESIGN VOLUME = 23,326 S.F.(1"/12)(0.81) = 1,575 C.F.. -�-O 'eA-rlc°' BASIN CAPACITY: 2.8 CONTOUR AREA = 1,599.3 S.F.,ONTOUR AREA = 2,848.6 S.F. VOL. = 1599.3(1.5') + (2848.6-1599.3)(0.75') = 3,336 C.F. EQUIVALENT RAINFALL EVENT = 1" X (3336/1575) = 2.12" j ii)IE AREA = 74,586 S.F. �� I� IMPERVIOUS AREA - BUILDINGS, OFFICE 417 S.F. SHOP/SHED 1,335 S.F. 6 PAVILION 1,611 S.F. 741 TOTAL BUILDINGS 3,363 S.F. g,3 Z� d1't PAVED AREAS, 41,807 S.F. TOTAL IMPERVIOUS AREA = 45,170 S.F. (60.6%) USING SCHULER EQUATION, Rv = 0.05 + 0.009(60.6) = 0.60 INCHES PER INCH FOR 1" RAINFALL EVENT, DESIGN VOLUME = 74,586 S.F.(1'/12)(0..60) = 3,729 C.F. oveftr5 te.r BASIN CAPACITY: 3.1 CONTOUR AREA = 7.271.9 S.F.rIlONTOUR AREA = 10,403.2 S.F. VOL. = 7,271.9(1.0') + (10,403.2 - 7,271.9)(0.5') = 8,838 C.F., EQUIVALENT RAINFALL EVENT = 1" X (8,838/3,729) = 2.37" %`%p1tlU4#q CA '•., OQ`QOFEssio��/.L� SEAL 1 91 = - 0 r6 PERFORMANCE ENGINEERING, 8604 CARATOKE HIGHWAY 4" POWELLS POINT, NC 279613 6 I % j 1 ` : 66 LETTER OF TRANSMITTAL PERFORMANCE ENGINEERING 8604 CARATOKE HIGHWAY POWELLS POINT, NC 27966 PHONE 252-491-8354 FAX 252-491-5112 CERTIFIED - RETURN RECEIPT REQUESTED TO: MR. BILL MOORE DATE: 12/15/06 OF: NCDENR-DWQ-WRO 943 WASHINGTON SQUARE MALL WASHINGTON, NC 27889 DEC 18 2006 0V�'Q-vvA1R00 PROJECT NO. 196,(-COEINGTON-SPEEDWAY STORMWATER PERMIT#SW7960401, PERMIT RENEWAL APPLICATION WE TRANSMIT THE FOLLOWING: - 2 COPIES, REVISED PLAN SHEET 1 OF 1, AS -BUILT DRAWING, REV. 1 - ONE, PROJECT NARRATIVE, REVISED 12/15/06 - ONE, CALCULATIONS SHEET FOR BASIN VOLUMES COMMENTS: Bill, These documents are provided in response to your correspondence of November 3, 2006 to Mr. Jimmie Summerell. Please advise if there is any additional information required. I appreciate your consideration of the submitted information. Best regards, Bob Stewart CC: MR. JIMMIE SUMMERELL FILE 196 'RoBERT J. SIEWART, JR,.P.E Civil Engineer - NC. & VA Registmdon PERFORMANCE M NMI?PQL May, 30 2006 Ms. Della Robbins REcEum) NCDENR-DWQ-WRO 943 Washington Square Mall w J(JN, 2006 Washington, NC 27889 re: Stormwater permit #7960401, renewal application DWQ-WARO Dear Ms. Robbins; This letter is written in response to correspondence dated May 14, 2006 from Mr. Al Hodge of D.WQ to Dana Summerell (the letter uses Mr., it should be Mrs.): Jimmie and Dana Summerell are the owners of Colington Speedway and the permit holders for the - "above referenced permit. Mr:'Hodge, in a telephone `conversation on 5/1'1/06; indicated that you are theperson I:that I should correspondence with: Shortly after receiving Mr. Hodge's letter Mr.. Summerell contacted me to assist him in preparing the Engineer's Certification and permit renewal application. I met with Mr. Summerell at the -project site ' to verify that the project was built in accordance with the'plans.that I. had prepared and which, were ultimately approved. I surmised that the site improvements were slightly,' inconsistent with the plans. Also, a portion of the areas designated for infiltration was discovered during construction to contain a small pond. This area wasembedded in dense' woods prior to Mr. Summerell :beginning construction and he was unaware of its existence until he attempted to construct the designed basins. I explained to Mr. . Summerell that an "as -built" survey will'be required in order for to evaluate.the deviations in the extent of covered area and to devise a BMP which can incorporate the . . existing "pond" referenced above into our overall project plan for stormwater management. Mr. Summerell has retained a'professional land surveyor to perform,the . work. I met with the surveyor on May 8, 2006 to give him directions regarding the scope of topographic. information I will need. He has completed his field work but as of this '. date d do not have a plat containing the information'needed to proceed'with my, evaluation and re -design. I am writing to' assure you that affirmative action is being taken 'in response to the notification from D.W.Q. and a formal renewal applicationmth JgMrting technical documentation isforthcomin . Thank you very much or your cooperation, patience. and. assistance in helping me to' 'bring this project into full compliance. I remain available'at your convenience for' discussion Very best regards, . . PE ORMANCE ENGINEERING - Robert J. Stewart, Jr., P.E. cc: Mr.Iimmie Summerell, C:\My.Documents\Microsoft Word files\196\1tr-della robbins 053006.doc .-,..�_; March 14, 2006 Mr. Dana Summerell 1064 Colington Rd Kill Devil Hills, NC 27948-8019 Subject: Stormwater Permit No. SW 7960401 Colington Speedway Dare Dear Dana Summerell, Michael F. Easley, Governor William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Alan W. Klimek, P.E. Director Division of Water Quality The Division of Water Quality issued a Coastal Stormwater Management Permit, Number SW 7960401 to Jimmie Summerell for Colington Speedway on 5/29/1996. This permit expires on 5/30/2006. Section .1003(h) of 15 A NCAC 2H .1000 (the stormwaterrules) requires that applications for permit renewals shall be submitted 180 days prior to the expiration of a permit and must be accompanied by a processing fee, which is currently set at $420.00. If this is still an active project please complete and submit the enclosed renewal application in a timely manner. If this project has not been constructed and a permit is no longer needed, please submit a request to have the permit rescinded. If you have sold the project, or are no longer the permittee, please provide the name, mailing address and phone number of the person or entity that is now responsible for this permit. Enclosed is a form for change of ownership, which should be completed and submitted if the property has changed hands. Your permit requires that upon completion of construction and prior to operation of the permitted treatment units a certification of completion be submitted to the Division from an appropriate designer for the system installed. This is to certify that the permitted facility has been installed in accordance with the permit, the approved plans, specifications and supporting documentation. Please include a copy of the certification with your permit renewal request and processing fee. Enclosed is a copy of a sample certification. You should be aware that failure to provide the Designer's Certification and the operation of a stormwater treatment facility without a valid permit, are violations of NC General Statute 143-215.1 and may result in appropriate enforcement action including the assessment of civil penalties of up to $10,000 per day. If you have any questions, please feel free to contact me or a member of the coastal stormwater staff with DWQ at 252-946-6481. Sincerely, AI Hodge, Regional Supervisor Surface Water Protection Section Washington Regional Office Enclosures cc: Ronald T. Strachan Washington Regional Office North Carolina Division of Water Quality Internet: www.ncwaterguality.org 943 Washington Square Mall Phone (252) 946-6461 Washington, NC 27889 Fax (252) 946-9215 Nne orthCarolina Natmal�I� An Equal Opportunity/Affirmahve Action Employer- 50% Recycledl10% Post Consumer Paper I' .•.�:,127/2006 00:20 2524915112 PERFORMANCE DIG PAGE 02 ROSERT J STEWART, JR, PE Civil Enylneel - NC & VA Rey/sfmflan PER�E fyG 8604 CARATOKE HWY . POWELLS POINT. NC 27966 • (252) 40Y 435&PHONE • (252) 451f f121FAX December 1, 2006 Mr. Bill Moore NCDENR-DWQ-WaRO 943 Washington Square Mall Washington, NC 27889 re: Stormwater Permit SW7960401, Colington Speedway, Dare County Engineer's Project Number 196 VIA FACSIMILE Dear Mr. Moore, I am writing this letter to request an extension of time for responding to your comments contained in your correspondence of November 3, 2006 to Mi. Jimmie Summerell, the owner of the above referenced project. When I first received a copy of the letter I felt comfortable that there was ample time to compile and submit the requested additional information. As it turns out, the December 4, 2006 deadline set forth in your letter is upon tut and I have been unable to address this issue due to my work load. I respectfully request an extension of two weeks, making the proposed new deadline December 18, 2006.. 1 have placed a call to your office, leaving a voice mail request for you to call to discuss certain questions I have regarding your tabulated items that are to be addressed. In addition, I wish to reiterate a previously stated request that a meeting be held on site so that you can see the existing facility and BMP that serves it and hopefully be more comfortable that the situation is riot one that is compromising water quality. ]-hank you for your consideration of these requests. 1 apologize for the lateness of this request for a time extension and I remain available for discussion at your convenience. Best regards, PERFORMANCE ENGINEERING W0 " Robert J. Stewart , Jr., P.E. cc: Mr. Jimmie and Ms. Darla Summereil, via facsimile, 252 480 1957 C:\My Documents\Microsoft Word files\196\faxletter to bill moore 120106.doc r 1 1)427/2006 00:20 2524915112 PERFORMANCE DIG PAGE 01 FACSIMILE COVER SHEET PERFORMANCE ENGINEERING 8604 GARATOKE HIGHWAY POWELLS POINT, NC 27966 PHONE 252 4919354 FAX 252 4915112 TO: Mr. Bill Moore DATE: 12/01/06 OF: NCDENR-DWQ-WaRO 2 PAGES, INCL. COVER FAX #: 252 946 9215 FROM: BOB STEWART PROJECT NO: 196, SW796040I, Colington Speedway SUBJECT: Request for extension of time COMMENTS: Bill, please acknowledge the receipt of this letter. I appreciate your coopemtioo and consideration. Best regards, Bob Stewart cc: Jimmie Summerell via fax # 4801957 PLEASE ADVISE IF YOU DO NOT RECEIVE THE ENTIRE TRANSMITTAL. IN LEGIBLE CONDITION Michael F. Easley, Govemor OG William G. Ross Jr., Secretary r North Carolina Department of Environment and Natural Resources 1 Y Alan W. Klimek, P.E. Director Division of Water Quality November 3, 2006 Mr. Jimmie Summerell 112 Colington Lane Kill Devil Hills, NC 27948 Subject: Stonnwater Permit SW7960401 Colington Speedway Dare County Dear Mr. Summerell: This office received your request to renew the existing stormwater permit for Colington Speedway located near Kill Devil Hills, NC. I reviewed your request, along with our stormwater files, and plan to conduct a site visit in the near future. In order to complete the renewal request, and before the permit can be renewed, the following items must be addressed: 1) Provide details of spillways. 2) Provide calculations for all impervious areas. 3) Storage volume calculations provided with renewal request do not match original permit. When structural bypass is not provided; excess storage is usually required; this issue must be resolved. The above requested information must be received in this office prior to December 4, 2006, or your application will be returned as incomplete. The return of this project will necessitate resubmittal of all required items including the application fee. If you need additional time to submit the required information, please mail or fax your request for time extension to this office at the Letterhead address. If you have questions, please feel free to contact me at (252) 948-3919. Sincerely.— W�illiam J. Moore Environmental Engineer Washington Regional Office cc: Performance Engineering Dare County Planning/Inspections Avashington Regional Office N"off Caro vaturnr North Carolina Division of Water Quality Washington Regional Office Phone (252) 946-6481 FAX (252) 946-9215 Customer Service Internet: h2o.encstate.nc.us 943 Washington Square Mall, Washington, NC 27889 1-877-623-6748 JIMMIE SUMMERELL 112 COLLETON LANE KILL DEVIL HILLS,NC 27948 252-441-6383 252-480-1957 August 9, 2006 State of North Carolina Department of Environment & Natural Resources Division of Water Quality 943 Washington Square Mall Washington,NC 27889 Attn: Mr. Al Hodge Re: Project Old Ferry Landing Road,East Lake Mr. Hodge, Per our previous conversation I would request to withdraw my application for a storm water permit at the above referenced property. It is not my intention to change the current run off characteristics of this property. The scope of my work involves clearing brush and re -seeding. The re -seeding has been started at this point and no construction is planned. Thank - You for your help with this. 'ncerely Jimmie Summerell RCEC(313V DD AUG 1 12006 LETTER OF TRANSMITTAL PERFORMANCE ENGINEERING 8604 CARATOKE HIGHWAY POWELLS POINT, NC 27966 PHONE 252491-8354 FAX 252-491-5112 TO: MR. BILL MOORE OF: NCDENR-DWQ-WRO 943 WASHINGTON SQUARE MALL WASHINGTON, NC 27889 DATE:8/5/06 - .CENED PROJECT NO. 196, COLINGTON SPEEDWAY PERMIT #SW7960401 RENEWAL APPLICATION WE TRANSMIT THE FOLLOWING: -ORIGINAL - COASTAL STORMWATER PERMIT RENEWAL APPLICATION FORM - CHECK #3863 IN THE AMOUNT OF $420.00 (SEE COMMENTS BELOW) - ONE, NARRATIVE DESCRIPTION AND UPDATE OF PROJECT STATUS - ONE, DESIGNER'S CERTIFICATION - TWO, PRINTS OF PLAN SHEET 1 OF 1, AS -BUILT DRAWING COMMENTS: BILL, I NOTICED THAT THE CHECK WAS ERRONEOUSLY MADE OUT TO THE ATTENTION OF THE LAND QUALITY SECTION. HOWEVER, SINCE THE PAYEE IS NCDEHNR 1 ASSUMED IT WILL BE OK. IF NOT, LET ME KNOW AND THE OWNER WILL CUT ANOTHER CHECK IMMEDIATELY. SORRY FOR THE MIX UP. I ASSUME THE DIVISION WILL WANT TO LOOK THIS SITE OVER. PERHAPS YOU COULD DO THAT ON YOUR TRIP DOWN THE WEEK OF THE le THROUGH 18"'. PLEASE CALL IF YOU NEED CLARIFICATION REGARDING ANY OF THE CONTENTS OF THIS RENEWAL APPLICATION PACKAGE. THANKS AND BEST REGARDS, BOB STEWART CC: MR. JIMMIE SUMMERELL FILE 196 f. o I . 1am IZ 'atilY , 104 it :5 �01, 11=10; P ly Q,Y 0I Y I! qQ K Olt Q. 1: e "'ANICAQ, IM, f , LvQn. 74: 0 In 31 4 &V A ; :7... ,111.1m , L., 1. !.-, 'I!, 1 ; 4" 1: �,i� . 11 , , , Mon TO 1; K . ROBERT J. SIEWART, JR., PE Civil Engineer -NC.B VA Registration PERFORMANCE 1.ENGINEER 16 8604 CARATOKE HWY. • POWELLS POINT, NC 27966 • (252) 491-M541PHONE • (252) 491-511ZFAX COLINGTON SPEEDWAY - PERMIT #SVV7960401 RENEWAL APPLICATION ♦ V DARE COUNTY NARRATIVE DESCRIPTION AND UPDATE OF PROJECT STATUS This narrative is prepared'to provide an update regarding the as built. condition of the existing facility and the siormwater management BMP's. In March of 2006 the Div. of Water Quality notified the permittee; Mr. Jimmie. Summerell of the requirement to renew the stormwater permit referenced above and to provide the Designer's Certificatiomfor the as -built condition of the project and the associated infiltration.basins. The Engineer was asked to inspect, the project'to confirm conformance with the approved plans: The initial inspection resulted in the observation that there were certain minor inconsistencies between the site plan as designed and as built. Therefore, Mr. Robert Cummins, P.L.S. was retained to perform a physical survey to reflect the existing features and topographic information. Based on the as built survey by Mr. Cummins, calculations.for coverage and --��zequired storage volume in the two infiltration basins were revised. Mr. Summerell regraded the existing basins to restore uniform bottom elevations and proper side slopes. The deviations between the approved plan were generally very slight and the stormwater' BMP was functioning effectively. The most significant inconsistency is the presence of a small area of standing water in the, northern section ofBasin "B'. Mr. Summerell reports' that he was unaware of this low area, which canbe described as a sha, low.pond, prior to clearing the area to construct the designed basins. The: "pond", approximately.l'-3deep, Was in a heavily.wooded area, near the property line, and'was not detected prior to Mr. Summerell's developing of the site. It is proposed to leave this wet area in its current state due to the adverse environmental impacts" of filling it or digging it deeper. The basin "functions very effectively and recent observations'have shown the normally dry areas to draw down in approximately'three. days'after torrential rains well in excess of 1". Prior to Mr. Summerell's ownership, the tract was used as a concrete production plant. The previous owners left sizable masses of concrete buried and/or partially buried in numerous locations. These concrete deposits have created significant constraints to the owner in attempting to grade the basirissto the exact.lines and slopes originallyspecified. However, the original basins were in fact constructed in substantial conformance with the original plans and at no time was there any direct discharge of run-off stormwater into the adjacent'on-site wetlands or on to the adjacent properties. The BMP's, as currently ' constructed, provide storage capacity equivalent to a 3.3 inch rainfall event for Basin "A" . and a 13" rainfall event for Basin "B": Summay Calculations for the drainage areas and associated.basins are provided on the plan sheet submitted with the'Permit Renewal Application package: ` A.\ CAROB''•., :Z;aQa SP a{� _ SEAL " - D (' s,, - 19191 =fie Q $3L RoaERT J. STEWART, Jt, RE Civil Engineer - NC:B VA Registration - PERF'ORMANEE " � ENGINEERING ` 8604 CARATOKE HWY. • POWELLS POINT, NC 27966 • (252) 491.8554/PHONE • (252) 491.51121FAX DESIGNER'S CERTIFICATION PROJECT NAME: COLINGTON SPEDWAY DARE COUNTY STORMWATER PERMIT.NO. SW7960401 I, Robert J. Stewart, Jr., P.E., as a duly Registered Professional Engineer in the State of North Carolina, having been authorized to periodically.observe the -construction of the " Colington Speedway infiltration basins for the owner, Mr. Jimmie Summerell and having received topographic and as -built data from a North Carolina Professional Land Surveyor, hereby state that to the best of my abilities, duecare and diligence was used in the. inspection and observation of the projcct construction such that the construction was-, observed to be built in substantial conformance with the approved plans and specifications, and that the infiltration systems essentially meet the intent of the stormwater management regulations. This certification is'submitted with the "AS -BUILT DRAWING" and•Narrative Description and Update of Project Status incorporated by reference. The referenced documents are "components of the Coastal Stormwater Permit Renewal Application Form submitted bythe`owner/permittee. CAFjOr'ri� "Fesstp�i`��fi�'�® " sEAd- r1:9 �� 49191, .fie �i State of North Carolina Department of Environment, Health and Natural Resources Washington Regional Office James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary DIVISION OF ENVIRONMENTAL MANAGEMENT WATER QUALITY SECTION May 30, 1996 Mr. Jimmie Summerell 112 Colington Lane Kill Devil Hills, NC Dear Mr. Summerell: 27948 Subject: Permit No. SW7960401 Colington Speedway High Density Stormwater Project Dare County The Washington Regional Office received the completed Stormwater Application for the subject project on May 30, 1996. Staff review of the plans and specifications has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H.1000. We are forwarding Permit No. SW7960401 dated May 30, 1996.to Mr. Jimmie Summerell. This permit shall be effective from the date of issuance until May 30, 2006, and shall be subject. to the conditions and limitations as specified therein. Please pay special attention to the Operation and Maintenance requirements in this permit. Failure to establish an adequate system for operation and maintenance of the stormwater management system will result in future compliance problems. If any parts, requirements, o permit are unacceptable, you h adjudicatory hearing upon written following receipt of this permit. of a written petition, conforming Carolina General Statutes, and Administrative Hearings, P.O. Draw Unless such demands are made th binding. r limitations contained in this ave the right to request an request within thirty (30) days This request must be in the form to Chapter 150B of the North filed with the Office of er 27447, Raleigh, NC 27611-7447. is permit shall be final and 1424 Carolina Avenue, Washington, NC 27889 An Equal Opportunity Affirmative Action Enptoyer Telephone (919) 946-6481 FAX (919) 975.3716 50% recycled / 10% post consumer paper r .y Mr. Jimmie Summerell May 30, 1996 Page Two If you have any questions, or need additional information concerning this matter, please contact Bill Moore at (919) 946- 6481, extension 264. Sincerely, X :- — Rog-K. Thorpe Water Quality Supervisor Washington Regional Office cc: Performance Engineering Dare County Inspections ,Washington Regional Office Central Files State Stormwater Management Systems Permit No. SW7960401 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL DIVISION OF ENVIRONMENTAL MANAGEMENT STATE STORMWATER MANAGEMENT PERMIT HIGH DENSITY DEVELOPMENT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO Mr. Jimmie Summerell Dare County FOR THE construction, operation and maintenance of stormwater management systems in compliance with the provisions of 15A NCAC 2H.1000 (hereafter referred to as the "stormwater rules") and the approved stormwater management plans and specifications and other supporting data as attached and on file with and approved by the Division of Environmental Management and considered a part of this permit for infiltration basins to serve Colington 'Speedway located near Colington, NC. This permit shall be effective from the date of issuance until May 30, 2006, and shall be subject to the following specified conditions and limitations: I. DESIGN STANDARDS 1. This permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data. 2. This stormwater system has been approved for the management of stormwater runoff as described on pages 4 and 5 of this permit, the Project Data Sheet(s). 3. Approved plans and specifications for this .project are incorporated by reference and are enforceable parts of the permit. 3 DIVISION OF Project Name: Permit Number: Location: Applicant: Mailing Address: Application Date: Water Body Receiving Stormwater Runoff: Classification of ENVIRONMENTAL MANAGEMENT PROJECT DATA Colington Speedway SW7960401 Dare County Mr. Jimmie Summerell 112 Colington Lane Kill Devil Hills, NC 27948 April 2, 1996 May 30, 1996 completed Colington Creek Water Body: SC Basin Depth: basin # 1; 2.0 feet basin # 3; 1.5 feet Basin Bottom Elevation: basin # 1; 2.8 basin # 3; 4.4 Total Impervious Surfaces Allowed: 54,945 square feet Offsite Area Entering Pond: N/A Required Storage Volume: basin # 1; 2136 cf basin # 3; 6355 cf 4 O Provided Storage Volume: basin # 1; 5600 cf basin # 3; 13,982 cf Controlling Orifice: overflow elevations basin # 1; 4.8 basin # 3; 5.9 4. No homeowner/lot owner/developer shall be allowed to fill in, alter, or pipe any vegetative practices (such as swales) shown on the approved plans as part of the stormwater management system without submitting a revision to the permit and receiving approval from the Division. 5. The following items will require a modification to the permit: a. Any revision to the approved plans, regardless of size b. Project name change C. Transfer of ownership d. Redesign or addition to the approved amount of built -upon area e. Further subdivision of the project area.. In addition, the Director may determine the other revisions to the project should require a modification to the permit. 6. The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements of the permit. Within the time frame specified in the notice, the permittee shall submit a written time schedule to the Director for modifying the site to meet minimum requirements. The permittee shall provide copies of revised plans and certification in writing to the Director that the changes have been made. II. SCHEDULE OF COMPLIANCE 1. The permittee will comply with the following schedule for construction and maintenance of the stormwater management system. a. The stormwater management system shall be constructed in its entirety, vegetated and operational for its intended use prior to the construction of any built -upon surfaces except roads. b. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 2. The facilities must be properly maintained and operated at all times. The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals. 5 q 3. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency including, but not limited to: a. Semiannual scheduled inspections (every 6 months) b. Sediment removal C. Mowing and revegetation of side slopes d. Immediate repair of eroded areas e. Maintenance of side slopes in accordance with approved plans and specifications f. Debris removal and unclogging of outlet structure, orifice device and catch basins and piping. 4. Records of maintenance activities must be kept and made available upon request to authorized personnel of DEM. The records will indicate the date, activity, name of person performing the work and what actions were taken. 5. This permit shall become voidable unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data. 6. Upon completion of construction and prior to operation of this permitted facility, a certification must be received from an appropriate designed for the system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation. Mail the Certification to the Washington Regional Office, 1424 Carolina Avenue, Washington, North Carolina, 27889, attention Water Quality Section. 7.' A copy of the approved plans and specifications shall be maintained on file by the Permittee for a minimum of five years from the date of the completion of construction. III. GENERAL CONDITIONS 1. This permit is not transferable. In the event there is a desire for the facilities to change ownership, or there is a name change to the Permittee, a formal permit request must be submitted to the Division of Environmental Management accompanied by an application fee, documentation from the parties involved, and other supporting materials as may be appropriate. The approval of this request will be considered on its merits and may, or may not be approved. 2. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to enforcement action by the Division of Environmental Management, in accordance with North Carolina General Statute 143-215.6(a) to 143- 215.6(c). 6 c 3. The issuance of this permit does not 'preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances which may be imposed by other government agencies (local, state, and federal) which have jurisdiction. 4. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems. 5. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a permit modification, revocation and reissuance or termination does not stay any permit condition. Permit issued this the 30 th day of May, 1996. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION l< Preston Howard, Jr., P.E., Director Division of Environmental Management By Authority of the Environmental Management Commission Permit Number SW7960401 7 Colington Speedway Dare County Stormwater Permit No. SW7960401 Designer's Certification I, , as a duly registered Professional Engineer in the State of North Carolina, having been authorized to observe (periodically/weekly/full time) the construction of the project, for Project) (Project Owner) hereby state that to the best of my abilities, due care and diligence was used in the observation of the project construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications. Signature Registration Number Da 8 I DIVISION OF ENVIRONMENTAL MANAGEMENT NORTH CAROLINA STORMWATER MANAGEMENT PERMIT APPLICATION, GENERAL 1. Project Name: d 2. Project Location: (County, S A7-1gN7-1c 1�tiN Road, Address) .IW .LJ;12E• RECEIVED WASHINGTON OFrJCE APR 2 1996. D. E. M, ✓/// [�(/Gi/ANY /4.'� /a-G/•1 (/ u-7325 3. Owner's Name:/F/f/%2 Q/O!✓ii%' v�✓/y/i� Phone: i / / , 4. Mailing Address: 112 GAL /!/ /TN Gf1/v�� CJ— ki ?/I City /(ice ?l//L- �1/�(/!![y5 tiJ�-' State Zip S. Application Date: /j�5/� Fee Submitted: �e_,C:z— r-c v�{-��`%6 7. Nearest Receiving Stream: 1%aNP5 �!L �E� Class: t- 335 8. Project Description: 4�0 ��/liT �.ocp L1 �Y 38S II. PERMIT INFORMATION 1. Permit No. (will be completed by DEM). 50 / 4604-01 2. Permit Type: t New Renewal 6EK Modification (existing permit no.) 3. Project Type: Low Density Detention Infiltration G(W Cr& L Other 4. Other State/Federal Permits/Approvals Required: (Check appropriate blanks) Sediment/Erosion Control CAMA Major 404 Permit III. PROJECT BUILT UPON AREA Drainage . Drainage Basin Basin Classification Allowable Impervious Total Project Area Proposed Impervious % Impervious Area (a&• L - 181 2.3.'0L 54�145 1--n Breakdown of Impervious Areas Buildings 2601 ¢ M4 0 27Co6 Roads (TULK5) 56585 305-.5 Parking 3315 10 `] 3S I4 333 other I$3a 543Z 7Z6Z Totals 77ZL 4l ZI of 5404-5 fYt'5 \C1 -FTZC f8ffi-D IUU�L 011% AL 1.09 AL [MAC IV. STORNWATER TREATMENT (Describe how runoff will be treated): V. DEED RESTRICTIONS AND PROTECTIVE COVENANTS Deed restrictions and protective covenants are required for all low density projects and all subdivisions prior to the sale of any lot. Please see Attachment A for specific requirements. By your signature below, you certify that the recorded deed restrictions and protective covenants for this project shall include all the items required by the permit, that the covenants will be binding on all parties and persons claiming under them, that they will run with the land, that the covenant cannot be changed or deleted without concurrence from the State, and that they will be recorded prior to the sale of any lot. OWNER'S CERTIFICATION certify that the (Please print name clearly) information included on this permit application form is correct, that the project will be constructed in conformance with the approved plans, that the deed restrictions will be recorded with all required permit conditions, and that to the best of my knowledge, the proposed project -complies with the requirements of 15A NCAC 2H.1000. I authorize the, below named pe•pson or firm to submit stormwater plans on my AUTHORIZED AGENT Person or Firm Name:,, /l-/ T, Mailing Address: City Phone: 21-r1 le State zip Please submit application, fee and plans to appropriate Regional Office. (see attached map) -2- ATTACHMENT A LOW DENSITY PROJECTS GENERAL SUBMITTAL REQUIREMENTS 1. A completed coastal stormwater permit application. 2. Two sets of plans showing north arrow, scale, revision date, property/project boundaries clearly marked, contours, drainage basins, mean high water line, wetlands, easements, a minimum 30' buffer between surface waters and proposed impervious areas, and road cross -sections. 3. Calculations of the built -upon area. For subdivisions, please show the methodology for arriving at the per lot built -upon area. For non - subdivision projects, break down the calculation into buildings, roads, parking and other (include all impervious areas). 4. Low Density projects with curb and gutter will require: - drainage basins and Swale locations delineated on plans - - detail of swales (minimum 100 l.f. and 5:1 side slopes) - velocity calculations - inlet -outlet elevations - type of grass cover DEED RESTRICTION REQUIREMENTS NOTES: The following items must be included for all low density projects: No more than square feet of any lot, including that portion of the right-of-way between the edge of pavement and the front lot line, shall be covered by impervious structures, including asphalt, gravel, concrete, brick, stone, slate or similar material, not including wood decking or the water surface of swimming pools. This covenant is intended to ensure compliance with the stormwater permit issued by the State of North Carolina. The covenant may not be changed or deleted without the consent of the State. 1. If lot sizes vary significantly, owner should provide attachment with lot number, size and allowable impervious area for each lot. 2. No one may fill in or pipe any roadside swales or lot line swales, except as necessary to provide a driveway crossing. 3. For curb and gutter projects, no one may pipe, fill in or alter any lot line swale used to meet North Carolina Stormwater Permit requirements. REGIONAL OFFICES North Carolina Department of Environment, Health,. and Natural Resources Winston-Salem Raleigh Washington carts NXe NaIX. 1t'ly sue[F .Xlll4 [CC[INLXW GSM! MWII f v/NxIN 1MNYI ""D Ty1G - S X 14UW t �.y 44r Mun MO[M IOtSYIX . e Y C Rtln t MI Wlff LIItSQD 0 f n N.VrIM uNcly u G[wv[u max_ o«rt � X1SX MIpfON x„ola eocicdN Y.1[fIN I..sll- MGIUN 110[LL WR Ix11Xf1 Uy.lpypy MLLC W4IE xN1DO1M OUTINI.I Mlfd MCDOIYFLL C.U.w4 W4CWtF pwi,l • rlT! NAU10tr IIYUF 4VI1M • SUIM![fOm IMKOIX CAWxUS 1[1 I�f1dV O "aw I G11YY IM1p[SO4 In,\NFR WINE MCCIO4 SOI{ GASRY: STMIr GfIMfAi IINOIt CLVF4 C.I,C)t a tSNI- µKOLA MVJIu nil. xi1G_ Ul Utc • Ko CIN LUIYf\- LMO )o A5 SMYSON 2 ,qll UNION A."Asheville Mooresville s " o .a s MIT .OSI%7M HAOIN Fayetteville cm� It Wilmington NxN A11NfW1Cf ASHEVI iF. MOORESVILLE W[NSTONSALEn7 RALEIGH FAYEITEVILLE Wn.MOVGTON WASHINGMN 159 Woodfin Place 919 N. Main St 585 Waughtown St 3800 Barrett Dr. 225 Greene St 127 Cardinal Dr. 1424 Carolina Ave. Asheville, NC 28801 Mooresville, NC Winston-Salem, NC Raleigh, NC 27609 Fayetteville, NC Wilmington, NC Washington, NC 703-251-6208 701-6 1699 27107 919-5714700 28301 28405 27889 FAX 704-251-6452 FAX: 704-663-" 910-7714600 FAX: 9MS714718 910486-1541 910-395-3900 919-9464481 FAX 910-7714633 FAX 910486-0707 FAX: 910-350-2W4 FAX: 919-975-3716 ".y _ ROBERT J. STEWART, JR.; P.E. Civil Engineer - NC & VA Registration PERFORMANCE. nstruction Design B nt & lrc pest Construction Management 8 /nspecfions Site Planning &'Development ' EIVGI/VEERING StructoralAna/ysis P.O. BOX 2004 • KILL DEVIL HILLS, NC 27948 - (919).441 3011PHOIVE% (919) 441-100 . AX RECEIVED " ''WASHINGTON, OFFICE ' May 2511996 MAY 2 'b 1996 . Mr: Bill, ;Mooie NCDEHNR O.. D. LOW Division -of Eny.ironmental Management .1424.Carolina Ave. .washington,. NC, 278,89 Re': 'Jimmie S,umme'reTl'propBsed.go=cart trackpr6jec,t, Col'ington-,, Dare County; NC,,': Stormwater'Managemept' Plan; Engineer's Project No:'96196' Dear Bi1h, Enclosed; you.wi3-1 find'`the`plan sheet 'which depicts the ,proposed sto'rmwater management,meIasures,for Mr. Summerell's` go-kart• tr(ick,.proje,ct. Let, me. preface 'by. aporo'gzng for -,the somewhat_rough•nature of.the'.:d'rafting. .This was -the result'•':, o'f,a Situat'lon On Friday which,necessitated that ,the .,plan be completed.very'quick,iy in "'order to',•hav,e;prints avadlable;t'o put'in the marl so -that .they.-reached.you as early•as pos,si•ble. I have enclosed: a hard, copy :of; the 'Management .Plan arid; Operation and.Maintenance,.Agreement:'.which'•'was affixed. to the Plan ,.Sheet ,by,,"sticky ;back :.`,Hopefully, this will assist you by.,allowing,;you`to..read the't'ext in'aIclear. - and larger format: As•th'e'narr'ative-'siates, the�area is''divid'ed into:3 contributary_ areas, "A B"and "'C : The square. footage of each area is. tabu•late'd,,:as 1 is.- the -4616metriC'capaC'ity of the, basin (:s).'.which're'ceives water'from each respective'area. The cold arrows•gn�the, drawing. indicate the direction in which''. . stormwater'will ',ir,auel by::vli tue:of the"proposed•site gradi'ng:,'' It, is anticipated"that the"proposed.'bas'ins -will function=using'.both,wet and,dry infiltrati,on;-depending.upon. the part-icular ;`time' Ofth,e.. year. I. As the''.calcul�ations, re'flec,t,; there •is }capacity.signifigantly'j abode the 1;". required.by the State` Regulations:''''If'you have any questions: or. concerns,' pl"ease' call me" and.,I .will, discuss' them ;with' you: and take any:,remediaL''action which y,ou fe,el'wiil'te helpful ' 'in' facilitating the."review :and "approval 'of .thi's plan, 'I appreciate your'cooperafion;and'assi'stance in.helping,to get' 'Mr..Summerell's project:on track. He is also„appre.ciative of. any measures: which you' can take ,to expedi•te''thi•s matter I. remain ,aVailab'le at your'' convenience fOr.' d'iscu-s Si On'.,Or other necessary.--actlOn.. Very' best' regards, PERFORMANCE: ENGINEERING Robert,J:. Stewart, .Jr.;, P E.' cc: Mr.. Jimmie D..Summerell .• ,> RJS/js 1 r � i � t �, r � � _ _ .. ..n � 1 v _ rt' 1. _ x. i ti � t _ .S -� _ �- - t a. r - - . ,. _ � 1 � �," .. . ., ., . - i - ... / � � �. I y. .1 , 1 . ��l � .. f 1 ( � • ^ ` .�` Y � ` � � 1 i� 1 ��M1 � � 1 n` .. � :� !' _z i,�. .i t �. _ .r � .- i j. � n. �': > F t' - _ t, 1 "�� .. � ) • � � r 1 ' 1. ♦ .�\ T �. .., 1 n - � � � 1 . . .. � �-.. 4 r 1 1,' .(' 4 a� L � f. r a '- � t i s y . � M1 f t d t �- _ i ; 6 ' I � L , f. _ .. � � � .t ,+ ' ti . µ ,� . � A � - t _ � � f - .1 1 r +` Y 1 4 r � . \{ r ., i� � �i � '� . h ��� � 1 I pr ( 5 1 J �� S �' - A` ? 1. '.1 �. \ T 2 y. y 1 5�`^` + �1, f � 1 h' Y � f ' OuB--- Ousley fine sand, 0 to 5 percent slopes, rarely flooded. This moderately well drained soil is on low dunes near the sound side of the Outer Banks. It is farther away from the ocean and out of the main salt spray zone. Areas are irregular in shape and range from 5 to 135 acres in size. Typically, the surface layer is grayish brown fine sand about 3 inches thick. The underlying material to a depth of 80 inches is fine sand. It is yellowish brown and light olive brown in the upper part, dark grayish brown in the next part, and dark gray in the lower part. Permeability is rapid. The soil is very strongly acid or strongly acid. The seasonal high water table is 1.5 to 3.0 feet below the surface. This soil is subject to rare flooding during hurricanes or exceptionally strong wind tides. Included with this soil in mapping are small areas of Conaby, Corolla, and Osier soils. Conaby and Osier soils are in the wetter troughs and depressional areas. The nearly level Corolla soils are on the slightly higher, nearly level parts of the landscape. The included soils make up about 10 percent of the map unit. The Ousley soil is used mainly as woodland, Loblolly pine, live oak, water oak, and sweetgun are the dominant speies. The most common understory plants are waxmyrtle, grapevine, persimmon, yaupon holly, Virginia creeper, and blueberry. Wetness is the main limitation affecting woodland. This soil generally is not used as cropland, mainly because of its location on the Outer Banks and the wetness. the main limitations affecting urban and recreation uses are wetness, flooding, seepage, and the sandy texture. the wetness can be reduced by installation of perforated drain tile, drainage ditches, or a combination of the two systems. The capability subclass is Illw. Based on loblolly pine as the indicator species, the woodland ordination symbol is 8W. RONALD T. STRACHAN P.E. 304 WEST SANDPIPER TERRACE OLD NAGS HEAD COVE NAGS HEAD, NORTH CAROLINA 27959 (919) 441-8500 April 26, 1996 Mr. Bill Moore Division of Environmental Management Water Qualty Section 1424 Carolina Avenue Washington, North Carolina 27889 Re: Appllication No. SW7960401 Colington Speedway Dare County Dear Mr. Moore: RECEIVED WASHINGTON OFFICE APR -3 0 1996 D.LM. Reference letter dated April 16, 1996 regarding the above application from Roger K. Thorpe. Enclosed please find the additional data required. Mr. Summerell has sent the additional funds in a separate mailing. Please contact me for any further information or requirements. Ronald T. Strachan P.E. its/dls 1-2 (zg2A; IMG A / j KD/i A /iv /Z IzIeW/L C5w4 L- E ) 25� ZK13 =Z 279 iri 1045- �%� /�Xrsn,✓S ,(3v/�.D,n74 ./��F►,n�s -�� ft/bie->-y .C,dsT- �tJ�it/ Ito, Z 41,167 Nd7vG✓�1a�!✓A Zood d- < 66:-ya �-3 o-� RECEI WASHINGTON OFFICE MAY 0 9 1996 06 E IL Moore L / NAL/STRACHAN P.E. 304 WEST SANDPIPER TERRACE OLD NAGS HEAD COVE 4GS HEAD, NO TH CAROLINA 27959 ( 9 441-8 0 /ay,8,96 J � Division of Environmental Man er Water Quality section / 1424 Carolina Avenue Washington, North Carolina 27889 Re: Colington speedway Dare County Dear Mr Moore: Enclosed please find revised stormwater run off plan, revised calculation and narrative. The track T2 infield area will be increased to 30 ft. wide due to state regulations regarding go-cart tracks. The plans do not reflect this change as yet. This will allow the infiltration Swale in the infield to increased. 7on T. Strachan P.E. rts/dls rpf. i ,l,, '! 4 Routine Maintenance The maintenance required for infiltration basins is slightly greater than that needed for dry detention ponds. Some of the normal maintenance tasks for infiltration basins are detailed below. INSPECTION The performance of the infiltration basin should be checked after every major storm in the first few months after construction. Particular attention should be paid to how long runoff remains in the structure. Standing water in the basin within 48 to 72 hours after a storm, is a good indication that the infiltration capacity of the basin may have been overestimated. The inspector should look for factors which may be responsible for clogging the basin, such as upland sediment erosion, low spots, excessive compaction, or marginal soils; and then get the contractor to make any needed repairs. As a practical matter, local governments should not release any bonds posted for a basin until the inspector determines that it is performing as designed. Thereafter, the basin should be inspected annually. Some of the more important items to check for include: differential settlement, cracking, erosion, leakage or tree growth on the embankment; the condition of the riprap in the inlet, outlet and pilot channels; sediment accumulation in the basin; and the vigor and density of the grass truf on the floor of the basin. K0l k k The buffer, side -slopes and basin floor must be mowed at least twice a year to prevent woody growth. More frequent mowing may be needed if the basin is to be used as a passive recreation area. Mowing operations may be difficult since the basin floor may often be soggy. If low maintenance grass such as Tall Fescue is used, basin mowing can be performed in the normally dry months of June and September (Md WRA, 1983a). DEBRIS AND LITTER REMOVAL Trash will tend to collect in full -infiltration basins since they do not have outlets. Infiltration/detention designs also will collect trash that might clog the riser or low flow orifice. Therefore, it is a good practice to remove all debris and litter during each mowing operation. EROSION CONTROL li .I 't' .C`h"i: _.I(1• r"�, 1 .In .1• I . Y :1' . ..J jtn 1.•1 -..ailor 7I tl il,lc c•1 1. • .1, _ 1. .1/�.. .-1 1:- lil �. 'I lit �1 �•'��� n. l.. / � ` f .1 , . '.1 1 � • LJ.-I.• 1'Y' .r. � 1'^' • TIC. •ll. .t�-. 11 �.1�11 �C1t �l .. . e G A This is a very important maintenance task since eroded sediments can adversely affect the infiltration capacity of a basin. Eroding or barren areas should be immediately revegetated. TILLING If a basin is located on marginally permeable soils, annual or semi-annual tilling operations may be needed to maintain infiltration capacity. A rotary tiller or disc harrow can be used, preferably in the late summer months when soil permeability is likely to be the lowest (freezing and thawing of the soil in the winter and spring months often helps to break up the soil and keep infiltration capaacity high). Tilled areas should be immediately revegetated to prevent erosion. i h _ 4: 1_ J L T _ � L ' Non -Routine Maintenance STRUCTURAL REPAIRS / REPLACEMENT If the basin is of the infiltration/detention basin design, the pipes and barrels will eventurally need to be replaced. Corrugated metal pipe has an estimated longevity of approximately 25 years in the field; whereas, concrete pipe and other structures may last up to 50 years. However, if the basin is designed for full exfiltration (i.e., no oulet apart from an earthen emergency spillway) then the frequency and cost of structural repairs is sharply reduced. RESTORATION OF INFILTRATION CAPACITY Over time, the original infiltration capacity of the basin floor will gradually be lost. If the problem has been caused by surface clogging (e. g., sediment accumulation or local compaction), deep tilling can be used to break up the clogged surface layer, followed by regrading and leveling. (Md WRA 1986b) suggests that deep tilling may be needed every 5 to 10 years. In some instances, sand or organic matter can be tilled into the basin soils to restore infiltration capacity as well. If a basin still experiences chronic problems with standing water after these measures have been taken, it is likely that the orginal infiltration capacity was overestimated. It may then be necessary to install perforated underdrains beneath the basin to remove the excess water. SEDIMENT REMOVEL Infiltration basins are normally located in smaller residential watersheds that do not generate large sediment loads, or are equipped with some kind of sediment trap. However, even though sediment loads to the basin are likely to be low, they will still have a negative impact on basin performance, since the sediment deposits will reduce the storage capacity reserved for exfiltration and may also clog the surface soils. Sediment removal methods in infiltration basins are different from those utilized for extended detention and wet ponds. Removal should not begin until the basin has had a chance to thoroughly dry out, preferably to the point where the top layer begins to crack. The top layer should then be removed by light equipment, taking care not to unduly compact the basin floor. The remaining soil can then be deeply tilled with a rotary tiller of disc harrow to restore infiltration rates. Areas disturbed during sediment removal should be revegetated immediately to prevent erosion. TOTAL MAINTENANCE COSTS Infiltration basins have only recently come into widespread use in the Washington region, and consequently, there is very little data on which to base maintenance IL cost projections. However, since the routine and non -routine maintenance tasks for infiltration basins appear to be similar to those associated with conventional dry detention ponds, it may be resonable to assume that annual maintenance costs (routine and non -routine) will comprise 3-5% of a basin's initial construction cost (Wiegand et al.,1986). This should be considered an interim estimate until more infiltration basin maintenance experience has been gained. I, Jimmie Summerell a ree to maintain this project per above specifications Signature aDate S/ g/ g .n - RON STRACHAN PE 304 WEST SANDPIPER TER OLD NAGS HEAD COVE NAGS HEAD, N.C. 27959 919-441-8500 PROPOSED STORM WATER RUN OFF, SOIL AND EROSION PLAN AND CALCULATIONS Refer to area on storm water plan called "A". Proposed parking area parking spaces as marked 6 through 40=10,938 sq. ft.10,938 x 1/12=911.5 cubic ft. Required capacity 911.5 Cross sectional area of cl le -�--- �� A=2/3 Td (parobolic shape) -�k—T=10' d=1' A=6.7 sq. ft. Length of swale 1=200 ft. Volume of swale=6.7 sq.ft.x200 ft.=1340 cubic ft. 1340 cubic ft.>912 cubic fr. The existing parking area is also going to drain across the proposed new parking. The area of the existing parking lot is 56x50'+40'x30'=3950 sq.. ft. Volume of run off=3950xl/l2=329 cubic ft. 329 cubic ft.+912 ciboc ft1=1241 cubic ft. 1291 cubic ft. < 1340cubic ft. ok the bottom of swale 1 is at elevation 3.6 Ft. Seasonal water table is at 1 ft. +/- .There will be 2'-6" +/- difference in elevation. Refer to area on storm water plan markedd B. The existing building storm water run off drains to the rear (northeast direction). The infiltration rate is 6" to 20" per hour The extra volune of water is 43'x35'x1/12=125 cubic ft. or (1250 cubic ft. x1 jXft.) ' 3000 sq. ft.=.5 inches of run off.. This should not pose aproblem based on the given permeability rates and elevation of 5.0' to 4.9. Refer to area on storm water plan marked C Area T-1, (small oval track) Area of concrete track =3085 sq. ft. T-1 infield area =379 sq. ft. Cross section proposed: �. ^ T=10' (parobolic shape) d=1'6' A=2/3xTd=2/3xl 0x1.5=1 0 sq. ft. Volume=10sq,ftx30=300. Pr'9 V (ends)=1/31 1,2(3r-h) cubic ft. (approsimate)=2.3326xl3.5=31 cubic ft. Total =331 cubic ft. Track run off=3085 sq. ft.xl/12=257 cubic ft. 331>257 ok Elevation bottom of infield =3.5' Elevation water table =1 to 1.5' Refer to area on sbft water plan marked D Area of proposed buildings storage and walkways 5696 sq. ft. Area of T-3 (multi -curved raceway)=16,633 sq. ft. Area of T-3 infield=3987 sq. ft. Vol=5696 sq. ft.x1/12=474 cubic ft. 16,633 sq. ft.x1/12=1386 cubic ft. Total=1860 cubic ft. Infield area 3987sq. ft.x1/12=332 cubic ft. Allow the infield area to absorb 3 inches + the area of the infield. 332 cubic ft. per inch x3'=996cubic ft. Total=1860-996 cubic ft.=864 cubic ft. passes to the retention swale. Retention Swale; The T-3 track elevation is adjusted fo form a channel . High side elevation 4.6'. A 10' grassy swale transfers the runoff to the retention swale. capacity of retention swale - ZS Cross sectional area=bdtZd2" Area=(15x1) +5x1=20 sq. ft. T=b+2d Z=15+(2xlx5) =25 F7 , Volume=20 sq ft. x180'=3600 cubic ft. 3600 cubic ft.> 864 cubic ft. ok Refer to area on storm water plan called E. Track T2 oval area-10,712 sq. ft. Track T2 infield area=3987 sq. ft. T T=15' t d=1.5 Parobolic� (A) area=2/3 TD .67x15x1.5=155Qft. V=77'xl5 sq ft: 1155 ft3 Ends =1/3 ii %l Pr-h) h=1.5 r =7.5 Vol ends=2.3341=49 ft. Total volume =1204 cubic ft. 1 "of rulbff=10,712 sq. ft.xl./12=892 cubic ft. Infield swale =1204 cubic ft. 1204 >892 ok the elevations of all the infiltration area bottoms are at least Ift. above high water table. 2� 2 April 26, 1996 Mr. Jimmie Summerall 112 Colington Lane ( Kill Devil Hllls, Nort,Caro' a 7 48 Re: Calculations for Storm ate un off evis d Colington Speed ay Dare County By: RON STRACHAN PE 304 WEST SANDPIPER TERRA E NAGS HEAD, NORTH CAROLI A 27959 P.E. CERTIFICATION 13525 919-441-8500 FAX 919-480-0850 Type soil OuB Ousley, fine sand 0 to 5 percent slopes, rarely flooded. Permeability 6.0" to 20" per hour. High water table 18" to 36" below surface. Actual site conditions are higher than the marsh, as shown by the Topo. The high water table is normally closer to 36" The area will be stabalized by adding 2 to 3 inches of top soil in the open areas and seeding the entire site. Each drainage basin will be seeded and mulched with straw cover. State of North Carolina Department of Environment, Health-:a.M, .Natural Resources Washington Regional Office James S. Hunt, Jr., Governor Jonathan S. Howes, Secretary DIVISION OF ENVIRONMENTAL MANAGEMENT WATER QUALITY SECTION April 16, 1996 Mr. Jimmie Summerell 112 Colington Lane Kill Devil Hills, NC 27948 Subject: Application No. SW7960401 Colington Speedway Dare County Dear Mr. Summerell: The Washington Regional Office acknowledges receipt of your permit application and supporting information on April 2, 1996. This application has been assigned the number listed above. A preliminary review of your project has been completed. The following additional information is needed before a permit can be issued: - an application fee of $ 385 is required for high density projects (as per our phone conversation, I will hold your $ 50 check and deposit it along with your additional $ 335 check when it arrives) - a narrative description of stormwater control measures for each drainage basin - stormwater runoff and design calculations - detailed description of soil and seasonal high water table conditions at the site, include infiltration rates The above information must be submitted within 30 days, or your application will be returned as incomplete. If you have questions, please feel free to contact Bill Moore at (919) 946- 6481, extension, 264. Sincerely, Rogerr K. horpe Water Quality Supervisor Washington Regional Office cc: \,Washington Regional Office 1424 Carolina Avenue, Washington, NC 27889 Telephone (919) 946-6481 FA% (919) 975-3716 An Equal Opportunity Affirmative Action Employer 50% recycled / 10% post -consumer paper - WASHINGTONEOFFICE MAY 2 8 1996 D. E 'WL tt t STORMWATER MANAGEMENT PLAN I. MANAGEMENT CONCEPT: IT IS THE DESIGNER'S INTENT TO PROVIDE THE MAXIMUM VOLUME OF 'RETENTION CAPACITY WITHIN THE AREAS AVAILABLE. THE RETAINED STORMWATER WILL BE ALLOWED TO INFILTRATE ON -SITE IN.ALL BUT THE MOST INTENSE RAINFALL EVENTS. AT THESE TIMES, A SIGNIFICANT "FIRST FLUSH" WILL BE RETAINED AS THE CALCULATIONS BELOW WILL DETAIL, AND THE ENSUING RUN-OFF WILL BE DIRECTED BY SHEET FLOW ACROSS A BROAD (+/- 270') EXPANSE OF MARSH BEF.ORE'DEPOSITION INTO COLINGTON CREEK. THE PROPOSED SITE GRADING WILL RESULT IN THREE DISCERNABLE CONTRIBUTARY'AREAS. THESE ARE LABELED AREA "A", "B" AND "C" WITH THE RECEIVING BASINS LABELED BASIN "1", "2" AND "3"'RESPECTIVELY. THE PREVAILING IN -SITU SOIL.TYPE, ACCORDING TO THE U.S.D.A.•, S.C.S. SOIL SURVEY OF DARE COUNTY, IS OSIER FINE SAND WITH THE ADJACENT MARSH BEING PREDOMINANTLY CONABY MUCK. THE OSIER SERIES IS CHARACTERIZED BY PERMEABILITY RANGING FROM 6-20 INCHES PER HOUR IN THE 0-3' DEPTHS AND >20 IN./HR. AT GREATER DEPTHS. THIS HIGH PERMEABILITY WILL FACILITATE INFILTRATION AND HELP MINIMIZE THE EXTENT .TO WHICH THE OVERFLOW PROVISIONS WILL•BE NECESSARY. THE BASINS WILL BE STABILIZED BY PROVIDING' VEGETATIVE COVER AND BY LIMITING SIDESLOPES TO 3:1 (H:V). II. TECHNICAL SUMMARY AND DATA A. CONTRIBUTARY AREA "A": THIS'AREA.CONSISTS OF THE EXISTING cb AND PROPOSED PARKING LOTS , THE SOUTH 1/2 OF THE OFFICE Z, STORAGE BUILDINGS AND THE AREA TED FOR BASIN #1. THE TOTAL CONTRIBUTARY AREA IS 25,628 S THE RU TOPEIVING ELEVATIONISET#AT 4I8L BE ANDCTTHETRU WIDE BOTTOM ELEVATION ITH SET E SET ATS`2� K•�5�3` 2.8'. (SEE SECTION 1-1) THE UNIT VOLUME OF THIS BASIN IS CALCULATED TO BE 28 CF/LF. THE LENGTH OF TS TO �ry,�;l� Z BE A MINIMUM OF 200' FOR A TOTAL VOLUME OFr5,�600CF THE-0EQUIVALENT RAINFALL VOLUME IS CALCULATED B25,628 SF X 12"/'= 2.76". ANY ACCUMULATION IN EXCESS OF THIS WILLS OVERFLOW INTO THE MARSH FOR TRANSPORTATION BY SHEET FLOW J TOWARDS COLINGTON CREEK. B. CONTRIBUTARY AREA "B": THIS AREA CONSISTS OF THE NORTH 1/2 OF THE OFFICE BUILDING, THE,OPEN AREA IMMEDIATELY BEHIND THE OFFICE BUILDING, OVAL.TRACK T-1, AND THE AREA DESIGNATED —FOR —BASIN C:) THE TOTAL FOR THIS CONTRI_BUTARY AREA IS 6,995 SF`) THE RECEIVING BASIN (#2) IS TO BE OQ CONSTRUCTED DE WITH THE EXCEPTION OF A NECKED DOWN SEGMENT ADJACENT TO TRACK T-1. THIS SEGMENT IS EXCLUDED TOTALLY FROM THE VOLUMETRIC CALCULATIONS PRESENTED, AS IS THE INFIELD AREA OF THE TRACK. SEE SECTION 2-2 FOR GEOMETRIC DIMENSIONS OF THIS BASIN. THE UNIT,VOLUME OF 1b440 S3 THIS BASIN IS CALCULATED TO BE 11.25 CF/LF..THE NET /• �' LENGTH, EXCLUDING THE NARROWER SEGMENT ADJACENT TO THE r� C TRACK AND THE NORTHERN MOST AREA AT THE TIE' -IN 0 I #3 IS 445 LF FOR A RESULTING AVAILABLE VOLUME OF 5,006 CF. I I THE EQUIVALENT RAINFALL EVENT IS CALCULATED BY 5,006 CF/ 16,995 SF X 12"/'= 3.53". TO MAXIMIZE THE CAPACITY OF THE SYSTEM, BASINS #2 AND #3 WILL BE CONNECTED. C gq „s ' 97 C GROSS BASIN #3 VOLUME THEN, IS 2,057 + 6,919= �93 GIVEN TOIT O THE ABILITY ULD BE DOFHTHE AT TPERVIOUS HERE IS NAREAS STHROUGHOUT IDERATION BTHE G SITE TO INFILTRATE A.PORTION OF THE INCIDENTAL RAINFALL WHICH �$ CONTRIBUTARY AREA �: THIS AREA CONSISTS OF TRACKS T-2 AND T-3 AND ALL THE.UPLAND AREA NOT FALLING WITHIN CONTRIBUTARY AREAS "A" OR "B"..USING THE SURVEYOR'S DATA TABULATED ON THE DRAWING, THI IS CALCULATED AS, 101,899 SF- (16,995+25,628)= 59276 SF THE RECIEVZNG BASIN (#3) IS TO BE CONSTRUCTED 25' TH GEOMETRY AS DETAILED ON SECTION 3-3. THE UNIT VOLUME FOR THIS BASIN IS CALCULATED TO BE 30.75 CF/LF. THE DESIGN MINIMUM LENGTH IS 225' FOR A VOLUME OF 6,919 CF. THE INFIELD AREA FOR TRACK T-2 IS ALSO INCLUDED AS PART OF BASIN #3. THIS AREA WILL BE'CONSTRUCTED TO A DEPTH OF 1' AS ILLUSTRATED ON SECTION 4-4—THE CALCULATED VOLUME OF THIS RETENTION AREA IS 2,057 0g3� S� 2?6 X cf. 3 4 N S � ¢ . E b� � yr 8, 6 F THE EQUIVALENT RAINFALL EVENT IS CALCULATED BY 8,976 CF/59,276 SF X 12"/'= 1.82". NOTE COMBINING CONTRIBUTARY AREAS "B" AND "C" AND BASINS #2 AND #3 YIELD 76,271 SF AND 13,982 CF RESPECTIVELY. TH EQUIVALENT RAINFALL EVENT=13,982 CF/ 76,271 SF X 12"/'- 2.2". FALLS THEREON. THIS.ADDS AN ADDITIONAL MEASURE OF CONSERVATIVE DESIGN TO THE PLAN. OPERATION AND MAINTENANCE AGREEMENT A. INSPECTIONS: THE BASINS MUST BE INSPECTED AFTER EVERY RAINFALL EVENT GENERATING IN EXCESS OF 1" OF RAINFALL IN A 12 HR. PERIOD AND AT A MINIMUM OF ONCE EVERY 90 DAYS. CONDITIONS TO BE NOTED AND CORRECTED INCLUDE EVIDENCE OF CLOGGING (I.E. STANDING WATER AFTER NORMAL INFILTRATION TIMES HAVE ELAPSED), ACCUMULATION.OF TRASH, RUBBLE OR DEBRIS, EROSION OR SLOUGHING OFF OF-SIDESLOPES AND/OR OUTLETS OF EQUILIZATION CONDUITS, SEDIMENT ACCUMULATION AND DIFFERENTIAL SETTLEMENT CAUSING SIGNIFICANT DEVIATIONS IN BASIN DEPTH. ANY SUCH CONDITION NOTED MUST BE CORRECTED WITHIN TWO _WEEKS OF THE INSPECTION DATE. B. ROUTINE MAINTENANCE: ONCE EVERY 60 DAYS THE BASINS MUST BE RAKED TO BREAK UP ANY LAYERS OF SEDIMENTATION OR TRASH WHICH MAY HAVE BEEN DEPOSITED THEREIN. THE BASINS MUST BE TILLED ON A SEMI-ANNUAL BASIS TO INSURE CONTINUING INFILTRATION CAPACITY. A ROTARY TILLER OR DISC HARROW CAN BE USED FOR THIS PURPOSE. THE BASINS' BOTTOM ELEVATION MUST BE CONFIRMED ON AN ANNUAL BASIS. IN THE EVENT SEDIMENTATION TOTALING IN EXCESS OF 0.1' HAS DEVELOPED, THE BASIN BOTTOM(S) MUST BE SCARIFIED.USING A LIGHT WEIGHT TRACTOR OR OTHER EQUIPMENT WHICH WILL NOT CAUSE SIGNIFICANT COMPACTION OF THE SOILS. VEGETATIVE GROWTH WITHIN THE BASIN SHOULD BE KEPT TO THE MINIMUM REQUIRED FOR STABILIZATION AND TREES, SHRUBS OR OTHER PLANTS LIKELY TO DEPOSIT LEAVES OR OTHER ORGANIC LAYERS MUST BE KEPT OUT OF THE. BASINS. IF THE GROUND COVER IS THICK AND HIGH ENOUGH TO CAUSE SIGNIFICANT CUTTINGS, THIS MATERIAL MUST BE RAKED AND REMOVED AFTER MOWINGS. C. RESTORATION OF INFILTRATION CAPACITY: IF SEDIMENTATION OR COMPACTION CAUSES THE BASINS TO BECOME INEFFECTIVE IN OPERATING AS INTENDED, DEEP TILLING TO A DEPTH OF 12" MUST BE PERFORMED, FOLLOWED BY RE -GRADING AND LEVELING TO DESIGN SLOPES AND GRADES. OWNERS CERTIFICATION: I, THE UNDERSIGNED, BEING THE OWNER OF THE SUBJECT FACILITY, DO HEREBY CERTIFY THAT I HAVE READ AND UNDERSTAND THE INFILTRATION BASIN MAINTENANCE PROCEDURES OUTLINED ABOVE AND THAT I WILL PERFORM THE -SCHEDULED INSPECTIONS AND TAKE THE CORRECTIVE MEASURES TO INSURE THAT THE INFILTRATION BASINS ARE MAINTAINED SO THAT THEY CONTINUE TO FUNCTION IN THE INTENDED MANNER. ------------------------------------- (OWNER"S SIGNATURE) ----------------- (DATE) : ROBERT J.- STEWART JR.,, P E- Civil Engineer Atc 6 VA,Registration . PERFORN/ANCE Infrastructure a Design n n' a In ect Construction Management &Inspections Site Planning a Development - EIVGI/VEERING Structural Analysis P.O. BOX 2004 • KILL DEVIL HILLS, NC 27g48 • (919) 441-83011P ONE % (919) 441 r 1007/FAX p `- % t• RECEIVED - "•. .i' -, WASHINGTON'OFFICE May, 29, 1996 MAY 3-01996.. Mr.:.Bi11 Moore NCDEHNR'-. Division of<Environmental: Management 1424 Carolina Ave. Washington,- NC,: ',: 2..7889. ' Rd;'Jimmie Summerell proposed; go;,cart rfacility,'Co.lington Road, Dare County,y. NC, .Stormwater: Management..Pi'an. Engineer s.,Project:No.'.96196 ; Dear. Bi r .'•As we discussed today, by"telephone,;L am writing to.'prov,ide additi`ona-1 narrative and proposed.cha6ges'•to the 'finishe'd grades for .Basins #2-and,#3•for the above refe-renced-plan.. Please•add,this-letter as.an'addendum to the'previo,usly 'submitte$ planc'..After conducting an on'"site investigation,of the:groundwater.elevalt' this mornin'g,,.I arrived at the -conclusion that ,the bottom -'elevations of Basins #2 and, #,3 need 'to,be'raised'from',the'currentiy'proposed 3:0', to an"elevation of 4.4'.. The'. groundwater ''el'egat orrs'. shot "today .in Basin #2' and 4.3 range.from 3' :to- 3'.3•'.'' The 'groundwater'in' Basin'#l..was:at•'elevation Please note 'th•at�the" previous 3 'days, have been,,subjec't to very_, heavy rainfalls and -the ground -is essent, ally'saturatIed; Therefore","I. ,am comfo'r`table,"in say n,g-that,,the groundwater." elevation today reasonably represents:the,seasonal'high,'water table;., 'If there are,,, times of the' year .when the `water;, table `would, ,be',h•igh'er,: it would: cert'a nl"y,'be in the .middle.of. winter -when the facility will -be closed". and.no -traffic-Or.'other 'sourc'es. of 'pollution will 'be on the site - 'With the,'revised'elev:ations 'as 's'tated.lierein,'•.we'will maintain" a separ,ation''fro'm-the water, tabl•e'.of:a'.minimum`of 1 1". during.'ttie"•worst seasonal conditions... Therefore,g,iv4n,the high permeability -rate of,the in-s;i,tu',soils .(G" to,20," per, hour.) s.the' 5 •day draw'.down,can'-be expected to occur: I •will, be, putting 'the. 'redised ,plan and 'this letter in overnight mailt today 'for'antic'ipa:ted.receipt by you. on: Thursday; :May 30,•T996:. When you .have�'h"ad.an.oppo'rtunity'to review this submittal and are co.mfortable'in'writing;,Mr., Summerela's,permit;,please fax a copy. to him - .,..at '919-480-,1957" and,to 11me at..919-441=100.7'.' We' appre,c:iate •your cooperation 'and assistance in, 'expediting the review of this "plan and I". remain available'.for .discussion,at ,•your.,convenience-if,-.you have- " gue Sti Ons Or conCernS' - - .Very. best regards, PERFORMANCE ENGINEERING Robert,J'. Stewart 7.r.; P.'E, cc:. Mr'. Jimmie D., S`ummerel'l RJS/]s