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HomeMy WebLinkAboutSW7090224_CURRENT PERMIT_20090327STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW�� DOC TYPE CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE YYYYMMDD Beverly Eaves Governor &F MCDEMR� North Carolina Department of Environment and Natural Resources Division of Water Quality Coleen H. Sullins Director Mr. Rich Olson, City Manager City of Elizabeth City PO Box 3471 Elizabeth City, NC 27909 G 3 0 I Subject: Dear Mr. 0 Dee Freeman Stormwater Permit No. SW7090224 South Park Athletic Complex Overall Low Density Commercial Development with an Area of High Density Pasquotank County The Washington Regional Office received a complete Stormwater Management Permit Application for South Park Athletic Complex on February 26, 2009 and an additional information on March 24, 2009. Staff review of the plans and specifications has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Session Law 2008-211 and Title 15A NCAC 2H.1000. We are forwarding Permit No. SW7090224, dated March 27, 2009, for the construction of the subject project. This permit shall be effective from the date of issuance until March 27, 2019, and shall be subject to thel 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 toiChapter 150E 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 thisipermit shall be final and binding. If you have any questions, or need additional information concerning this matter, please contact SamirlDumpor, or me at (252) 946-6481. incerel , Ho' Regional Supervisor Surface Water Protection Section AH/sd: S:\WQS\STORMWATER\PERMIT\SW7090224 cc: Jeff Ashbaugh, Site Solutions (2320 West Morehead Street, Charlotte, NC 28208) Pasquotank County Inspections ashington Regional Office Central Files North Carolina Dicisioniof Water Quality Internet: www.newaterauahty.ore 943 Washington Square Mall Phone: 252-946-6481 One Washington, NC 218191 FAX 252-946-9215 NOl U1CarOhna State Stormwater Management Systems Permit No. SW7090224 STATE OF NORTH CAROLINA OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY STATE STORMWATER MANAGEMENT PERMIT OVERALL LOW DENSITY COMMERCIAL DEVELOPMENT WITH AN AREA OF HIGH DENSITY 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 City of Elizabeth City South Park Athletic Complex Pasquotank County FOR THE construction, operation and maintenance of an overall low density commercial development with a wet detention pond in compliance with the provisions of Session Law 2008-211 and 15A NCAC 2H .1000 (hereafter referred to as the "stormwater. rules') and the approved stormwater management plans and specifications and other supporting Jdata as attached and on file with and approved by the Division of Water Quality and considered a part of this permit. This permit shall be effective from the date of issuance until March 27, 2019 and shall be subject to the following specified conditions and limitations: I. DESIGN.STANDARDS This1permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data. The built -upon area percentage for the low density portion of this project must be maintained at 24% per the requirements of Session Law 2008-211 and 15A NCAC 2H .1000. This project is permitted for a maximum of 138,956 square feet of BOA (for both Low Density and High Density portion of this project). 3. The 'stormwater systems proposed to treat the runoff generated by the designated high density areas have been approved for the management of stormwater runoff as described in Section 1.6 on page 3 of this permit. 4. This (project will maintain a minimum 50 foot wide vegetated buffer between all impervious areas and surface waters. 5. Within the low density portions of the permitted project, the only runoff conveyance systems allowed will be vegetated conveyances such as swales with minimum side slopes of 3:1 (H:V) as defined in the stormwater rules and as shown on the approved plan. Page 2 of 8 z5tate stormwater management jystems Permit No. SW7090224 Q The following design elements have been permitted for this wet detention pond stormwater facility, and must be provided in the system at all times. a. b. C. d. e. f. 9• h. k. 1. Drainage Area, ft2: Total Impervious Surfaces, ftZ: Average Pond Design Depth, feet: TSS removal efficiency: Design Storm: Permanent Pool Elevation, FMSL: Permitted Surface Area @PP ftz: Permitted Storage Volume, fts: Storage Elevation FMSL 253,519 113,256 3.09 90% 1.5" 5.50 42,479 14,326 at temporary pool 5.85 Predevelopment 1 year 24 hr, ft3/s: 0.25 Post development 1 year 24 hr, ft3/s: 0.49 Controlling Orifice: Permanent Pool Volume, ft3: Forebay Volume, ft3: Receiving Stream / River Basin: Stream Index Number: Classification of Water Body: 3" O pipe 131,376 28,583 Pasquotank River/Pasquotank Basin 30-3-(12) "S B" II. SCHEDULE OF COMPLIANCE 1. No homeowner/lot owner/developer shall fill in, alter, or pipe any drainage feature (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. 2. The permittee is responsible for verifying that the proposed built -upon area for the entire lot does not exceed the maximum allowed by this permit. 3. 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. 4. 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 surface. 5. The runoff from all built -upon area within the drainage area of the high density portion of the project, must be directed into the permitted stormwater control system. 6. Within the low density portions of the permitted project, all roof drains shall terminate at least 50 feet from the mean high water mark of surface waters. 7. The permittee shall submit to the Director and shall have received approval for revised plans, specifications, and calculations prior to construction, for any modification to the approved plans, including, but not limited to, those listed below: 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. Page 3 of 8 State Stormwater Management Systems Permit No. SW7090224 Further subdivision, acquisition, or sale of all or part of the project area. The project area is defined as all property owned by the permittee, for which Sedimentation and Erosion Control Plan approval or a CAMA Major permit was sought. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. 8. The Director may determine that other revisions to the project should require a modification to the permit. 9. All stormwater collection and treatment systems must be located in either dedicated common areas or recorded easements. The final plats for the project must be recorded showing all such required easements, in accordance with the approved plans. I 10. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. i 11. Upon completion of construction, prior to issuance of a Certificate of Occupancy, 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. Any deviations from the approved plans and specifications must be noted on the Certification. 17A 13. 14. H61 16. 17 If, the stormwater system was used as an Erosion Control device, it must be restored to design condition prior to operation as a stormwater treatment device, aind prior to occupancy of the facility. i Permanent seeding requirements for the stormwater control must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual. This permit shall become void unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and ther supporting data. The permittee shall at all times provide the operation and maintenance necessary to assure that all components of the permitted stormwater system function at optimum efficiency. The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited to: . Semiannual scheduled inspections (every 6 months). b. Sediment removal. c. Mowing and re -vegetation 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 structures, orifice, catch basins and i in P P 9. g. Access to all components of the system must be available at all times. s of maintenance activities must be kept by the permittee. The records will the date, activity, name of person performing the work and what actions re taken. mittee shall submit to the Division of Water Quality an annual summary f the maintenance and inspection records for each BMP. The report shall Page 4 of 8 I IVIW aycII IV[ It VYDl011 IJ Permit No. SW7090224 summarize the inspection dates, results of the inspections, and the maintenance work performed at each inspection. 18. Prior to transfer of the permit, the stormwater facilities will be inspected by DWQ personnel. The facility must be in compliance with all permit conditions. Any items not in compliance must be repaired or replaced to design condition prior to the transfer. Records of maintenance activities performed to date will be required. 19. Prior to the subdivision and/or sale of this project, in whole or in part, the following deed restrictions must be recorded with the Office of the Register of Deeds: a. The following covenants are intended to ensure ongoing compliance with State Stormwater Management Permit Number SW7090224, as issued by the Division of Water Quality under NCAC 2H.1000. b. The State of North Carolina is made a beneficiary of these covenants to the extent necessary to maintain compliance with the Stormwater Management Permit. C. These covenants are to run with the land and be binding on all persons and parties claiming under them. d. The covenants pertaining to stormwater may not be altered or rescinded without the express written consent of the State of North Carolina, Division of Water Quality. e. Alteration of the drainage as shown on the approved plans may not take place without the concurrence of the Division of Water Quality. f. This project is permitted for a maximum of 138,956 square feet of built - upon area. Construction of additional built -upon area in excess of this amount will require a permit modification. g. This project may not be sold or subdivided, in whole or in part, without first receiving a permit modification from the Division. h. Construction of additional impervious areas such that low -density requirements are no longer met will require a permit modification prior to construction. An engineered system will be required to collect and treat the runoff from all built -upon area associated with the project, including that area permitted under the low density option. i. Filling in or piping of any vegetative conveyances (ditches, swales, etc.) associated with this development, except for average driveway crossings, is strictly prohibited by any persons. j. The built -upon areas shall be located a minimum of 50 feet landward of all perennial and intermittent surface waters. 20. A copy of the recorded deed restrictions must be submitted to the Division within 30 days of the date of recording the plat, and prior to selling lots. The recorded copy must contain all of the statements above, the signature of the Permittee, the deed book number and page, and the stamp/signature of the Register of Deeds. III. GENERAL CONDITIONS This permit is not transferable to any person or entity except after notice to and approval by the Director. In the event there is either a desire for the facilities to change ownership, or there is a name change of the Permittee, a completed "Name/Ownership Change Form" must be submitted to the Division of Water Quality, signed by the parties involved, along with the applicable documents as listed on page 2 of the form. The project must be in good standing with DWQ. The approval of this request will be considered on its merits and may or may not be approved. Page 5 of 8 �l State Stormwater Management Systems Permit No. SW7090224 2. IThe permittee is responsible for compliance with all of the terms and conditions lof this permit until such time as the Director approves the transfer request. 3. 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 143-215.6A to 143-215.6C. 4. 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. 5. 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. 6. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a permit modification, revocation and re -issuance or termination does not stay any permit condition. 7. PI rmittee grants permission to staff of the DWQ to access the property for the purposes of inspecting the stormwater facilities during normal business hours. 8. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. 9. The permittee shall notify the Division in writing of any name, ownership or mailing address changes within 30 days. 10. A copy of the approved plans and specifications shall be maintained on file by Per the 1,mittee for a minimum of ten years from the date of the completion of 11. Theiissuance of this permit does not prohibit the Director from reopening and modifying the permit, revoking and reissuing the permit, or terminating the permit as allowed by the laws, rules and regulations contained in Session Law 2008- 211,iTitle 15A NCAC 21-1.1000, and NCGS 143-215.1 et.al. 12. This'permit shall be effective from the date of issuance until March 27, 2019. Application for permit renewal shall be submitted 180 days prior to the expiration date of this permit and must be accompanied by the processing fee. Permit issued this the 27th day of March, 2009. NA ENVIRONMENTAL MANAGEMENT COMMISSION �', I — for Goleert H. b'Ulrms, Director Division of Water Quality By Authority of the Environmental Management Commission Page 6 of 8 r iwanagement oystems Permit No. SW7090224 South Park Athletic Complex Page 1 of 2 Stormwater Permit No. SW7090224 Pasquotank County Designer's Certification I, , as a duly registered in the State of North Carolina, having been authorized to observe (periodically/weekly/full time) the construction of the project, (Project) for (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. The checklist of items on page 2 of this form is a part of this Certification. Noted deviations from approved plans and specifications: Signature Registration Number Date SEAL Page 7 of 8 State Stormwater Management Systems Permit No. SW7090224 Certification Requirements: Page 2 of 2 1. The drainage area to the system contains approximately the permitted acreage. 2. The drainage area to the system contains no more than the permitted amount of built -upon area. 3. All the built -upon area associated with the project is graded such that the runoff drains to the system. 4. All roof drains are located such that the runoff is directed into the system. 5. The outlet/bypass structure elevations are per the approved plan. 6. The outlet structure is located per the approved plans. 7. Trash rack is provided on the outlet/bypass structure. 8. All slopes are grassed with permanent vegetation. 9. Vegetated slopes are no steeper than 3:1. 10. The inlets are located per the approved plans and do not cause short- circuiting of the system. 11. The permitted amounts of surface area and/or volume have been provided. 12. Required drawdown devices are correctly sized per the approved plans. 131 All required design depths are provided. 14. All required parts of the system are provided, such as a vegetated shelf, a forebay, and the vegetated filter. 15. The required dimensions of the system are provided, per the approved plan. cc: NCDENR-DWQ Regional Office Pasquotank County Building Inspections Page 8 of 8 CITY OF ELIZABETH CITY North Carolina Department of Environmental & Natural Resources (NCDENR) Division of Energy, Mineral & Land Resources (DEMLR) RECEIVED Washington Regional Office 943 Washington Square Mall JUN 2 3 2014 Washington, NC 27889 17 June 2014 D W Q-WARO Mr. Samir Dumpor, This letter is in response to your Notice of Inspection, dated 2 June, for the City of Elizabeth City South Park Athletic Complex, Stormwater Permit no. SW7090224. The City of Elizabeth City "Plan of Action" include the required "Designer's Certification" Page 7 & 8 of 8 documentation, properly executed by Mr. Jeff Ashbaugh, RLA of Site Solutions. If there are any questions or concerns, please feel free to contact the Public Utilities office at 337-6628. Sincere , ill "tv Y Steven M. Horvath, Public Utilities Engineer Cc: City of Elizabeth City Public Utilities Files City of Elizabeth City Park & Recreations Files Attachments: (1) Designer's Certification Page 7 of 8 (2) Checklist Page 8 of 8 (3) Copy of NCDENR Notice of Inspection letter dated 2 June 2014 POST OFFICE BOX 347 • ELIZABETH CITY, NORTH CAROLINA 27907-0347 • (252) 338-3981 J1n.U4.1U14 U4:14 PM EC/PC PARKS AND RECREATIO Lb2:JY1b646 PAGE. 3/ 4 State Storrnwater Vmgement gems eaNuotank County S rO 7 0 9 C 2.2 yt! Designer's Cerdflaado, n I, as a duty registered LAAB�SCA-41F VOO M5 r In the Nat O' State of �arolina, having , authorized to observe (periodically/ weft/ full time) the constructob of the project, SOUT/f 1+rHJ,6V /G COMPLEX (project) . for C'rrl o y (project Oww) 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. The checklist of items on page 2 of this form is Included In the Certification. Noted deviations from approved plans and specification: Signature 4oZ&.4 Registration 4umber 9`%3 Date_ I9`i CAR0 4'a DS�q SEAL a x W N3 �o X Certification Requirements: Page 7 of a C 1 ) R-r--PACN MF-^(l' -RECEIVED JUN 16 20% s jun. u4. Zul4 u4: to YM zL;/ YQ YAK&5 ANll xt;L; CY:ATlu ZOLJJ lbo4b YAGP:. 4/ 4 State Stomiwater 'nap t re sma Sit) 7o9o���.. 1, The drainage area to the system contains approAmately the permitted acreage. ✓ 2. The drainage area to the system contains no more than the permitted amount of built -upon area. 3. All the buift-upon area associated with the project is graded such that the runoff drains to the system. 4. All roof drains are located such that the runoff is directed into the system. ✓ S. The bypass structure elevations are per the approved plant. The bypass structure is located per the approved plans. - ✓ 7. -A Trash Rack is provided on the outlet/bypass structure. ✓ 8. All slopes are grassed with permanent vegetation. 9. Vegetated slopes are no steeper than 3:1. 10. The Inlets are located per the approved plans and do not cause short-circuiting of the system. ✓ 11. The permitted amounts of surface area and/or volume have been provided. ✓ 12. All required design depths are provided. 13. All required parts of the system are provided. 14. The required system dimensions are provided per the approved plans. cc: NCDENrt-DM Racional Office EllzaNeth ityr BuildhV inspections E.U7—NS1=rN (-Cr�/ PA2KS L jZECP—F-/Q 10J( Page a of a C 2) 4--,'09CH ME,J -r RECEIVED JUN 16 2014 9 North Pat McCrory Governor Carolina Department of Environment and June 2, 2014 City of Elizabeth City Mr. Steven Horvath, Public Utilities Engineer PO BOX 347 Elizabeth City, NC 27907-0347 Subject; NOTICE OF INSPECTION Permit No. SW7090224 South Park Athletic Complex Pasquotank County Dear Mr. Horvath Natural Resources lwt John E. Skvarta, III Secretary On May 29, 2014, 1 Inspected the South Park Athletic Complex development in Elizabeth City to determine compliance with Stormwater Management Permit Number SW7090224, which was issued on March 27, 2009. The DWQ site insoection revealed that AYcwnr fnr tho iaoija u.tea Ker...., .k_ ___:__. ,- :- Please see attached Inspection report also. • Designer's Certification not received. Per Schedule of Compliance Section of the stormwater permit (Section III. 11), a certification must be received from the appropriate designer for the system installed certifying that the permitted facility has been installed in accordance with this permit..... This Office requests that you respond to this letter In writing within IQ.calendar days of receipt of this Notice. Your response should be sent to this office at the letterhead address. Your response should provide a written "Plan of Action" which outlines the actions you will take to correct the above issue and a time frame for completion of those actions. Thank you for your attention to this matter. Please be advised that you are required to comply with the terms, conditions and limitations of your Stormwater Management Permit under Title 15A North Carolina Administrative Code 2H .1003 and North Carolina General Statute 143-214.7, including operation and maintenance of your permitted stormwater system. Sincerely, Samir Dumpor, P.E. Environmental Engineer cc: WaRO Files Division of Energy, Mineral, and Land Resources, Land Quality Section Washington Regional Office 943 Washington Square Mall, Washington, North Carolina 27889 • Phone: 252.946-64811 FAX: 252-975-3716 Internet: tMgWoortal ncdenr 2M6ubfirfland quality An Equal Opportunity 1 Affirmative Action Employer - 50% Recycled 110% Post Consumer Paper 3 ) �q-r'-P,9 CN nA E ^I -P ECE" E- J U N 1 3 2014 June 9, 2014 Mr. Samir Dumpor, PE LANDSCAPE ARCHITECTURE Division of Energy, Mineral, and Land Resources, Land Quality Section 943 Washington Square Mall Washington, NC 27889 CIVIL ENGINEERING SITE PLANNING 2320 W. Morehead St. Charlotte, NC 28208 Phone: 704.521.9880 Fax: 704.521.8955 sitesolutionsDa.com RE: South Park Athletic Complex Permit No. SW7090224 Dear Samir: Please find enclosed the designer's certification for the above referenced project. Please call me at 704-943-3171 if you need additional information. Sincerely, SITE SOLUTIONS Jel Ashbaugh, RLA cc: Bobbi White, City of Elizabeth City Jun.U4.2U14 U4:14 PM EC/PC PARRS AND RECREATIO Zb233'16b46 PAGE. 3/ 4 State Stormwater anagement Systems `-' Patimit No. SM070706 Designer's Certification as a duty registered LAn[DSci� As?04 M6W in the State of N61thl'Carolina, having#en authorized to observe (periodically! weeklyl full time) the oonstructioh of the project, SOUTH- PRQK 1+ HLEJi& ComPL&x (Project) for Cm10 F L-t-+Z-4PJ6Yi Girl (Project Owner) hereby state that, to the beat 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. The checklist of items on page,2 of this form is Included In the Certification. Noted deviations from approved plans and specification: SEAL SignatureK�- T � Registration 4umber W -3 J U N 1 3 2014 Certification Requirements: Page 7 of 8 iun.U4.ZU14 U4:1b YM EC/YC VAMt(S ANJ FLICUREATIU 2bZJ61bb4b YAGP:. 4/ 4 State Stormwater' nagement Systems Pbimlt No, SW70707013 1. The drainage area to the system contains approximately the permitted acreage. 2. The drainage area to the system contains no more than the permitted amount of buiftmupon area. 3. All the built -upon area associated with the project is graded such that the runoff drains to the system. 4. All roof drains are located such that the runoff is directed into the system. 5. The bypass structure elevations are per the approved plan. ✓ 8. The bypass structure is located per the.approved plans. 7. •A Trash Rack is provided on the outletlbypass structure. 8. All slopes are grassed with permanent vegetation. 9. Vegetated slopes are no steeper than 3:1. 10. The inlets are located per the approved plans and do not cause short-circuiting of the system. 11. The permitted amounts of surface area and/or volume have been provided. 12. All required design depths are provided. 13. All required parts of the system are provided. 14. The required system dimensions are provided per the approved plans. cc: NCDENR-DM Regional Office Passqquotank County Building Inspections Elizabeth City Building Inspections RrEC VET J U N 1 3 2014 D Q....._WAr n Page 8 of 8 I wc,ec.�- State of North Carolina r Department of Environment and Natural Resources .. ,� ��? �,-,• ,��:,�.� Ry ;��. , Division of Water Quality ?�:_•` .''.. " STORMWATER MANAGEMENT PERMIT APPLICATION FORkBFEB 2.0 2009 This form may be photocopied for use as an original ' CD 1 I. GENERAL INFORMATION 1. Applicants name (specify the name of the corporation, individual, etc. who owns the project): City of Elizabeth City/Pasquotank County 2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance): 3. Mailing Address for person listed in item 2 above: City:Elizabeth City State:NC Zip:27909 Phone: (252 ) 337-6864 Fax: (252 ) 335-2503 Email:rolson@ci!yofec.com 4. Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): South Park Athletic Complex Elizabeth City Parks and Recreation Department 5. Location of Project (street address): City:Elizabeth City County:Pasquotank Zip:27909 6. Directions to project (from nearest major intersection): Take US 17_S to Halstead Blvd (Right) and make a Right on Capital Trace. 7. Latitude:36° 16' 8" N Longitude:76° 12' 40" W of project 8. Contact person who can answer questions about the project: Name:ieff Ashbaugh Telephone Number: (704 ) 521-9880 ,Email:jeff@sitesolutionspa.com II. PERMIT INFORMATION: 1. Specify whether project is (check one): ENew ❑Renewal []Modification 2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the existing permit numberN/A and its issue date (if known)N/A 3. Specify the type of project (check one): ❑Low Density (]High Density ❑Redevelop (]General Permit ❑Universal SNIP ❑Other 4. Additional Project Requirements (check applicable blanks; information on required state permits can be Form SWU-101 Version 09.25.08 Page 1 of 4 obtained by contacting the Customer Service Center at 1-877-623-6748): ❑LAMA Major ®Sedimentation/Erosion Control ❑404/401 Permit ❑NPDES Industrial Stormwater III. PROJECT INFORMATION 1. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative (one to two pages) describing stormwater management for the project. This project will treat water from the proposed parking existing parking, and existing driveway which is considered to be a dense pocket of impervious area. It will go to a wet detention basin where it will be treated using the NCDWO standards for a 90" Tss Pollutant Removal Efficiency. 2. Stormwater runoff from this project drains to the Pasquotank River basin. 3. Total Property Area: 34.54 acres 4. Total Coastal Wetlands Area: 0 acres 5. Total Property Area (3) — Total Coastal Wetlands Area (4) = Total Project Area**:34.54 acres 5. (Total Impervious Area / Total Project Area) X 100 = Project Built Upon Area (BUA):10.94 % 7. How many drainage areas does the project have?3 8. Complete the following information for each drainage area. If there are more than two drainage areas in the project, attach an additional sheet with the information for each area provided in the same format as below. For high density projects, complete the table with one drainage area for each engineered stormwater device. Basin Information Drainage Area 1.1 Drainage Area 1.2 Drainage Area 2 Receiving Stream Name Pasquotank River Pasquotank River Pasquotank River Stream Class & Index No. SB 30-3-(12) SB 30-3-(12) SB 30-3-(12) Total Drainage Area (so 253519 544936 3485 On -site Drainage Area (so 253519 544936 3485 Off -site Drainage Area (so 0 0 0 Existing Impervious* Area (so 0 0 0 Proposed Impervious*Area (sf) 1 113256 25700 0 % Impervious* Area (total) 44.67 4.30 0 Impervious* Surface Area Drainage Area 1.1 Drainage Area 1.2 Drainage Area 2 On -site Buildings (so 0 2765 0 On -site Streets (so 18840 0 0 On -site Parking (so 89526 0 0 On -site Sidewalks (so 4890 22935 0 Other on -site (sf) 0 0 0 Off -site (sf) 0 0 0 Total (so: 1113256 25700 0 Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas, sidewalks, gravel areas, etc. **Total project area shall be calculated to exclude Coastal Wetlands from use when calculating the built upon area percentage calculation. This is the area used to calculate overall percent project built upon area (BUA). 9. How was the off -site impervious area listed above derived7mere was no off -site impervious area draining to this project. The other areas were based on field survey and these areas were drawn and calculated in Projects in Union County: Contact the DWQ Central Office staff to check to see ifyou project is located within a Threatened & Endangered Species watershed that may be subject to more stringent stormwater requirements. Form SWU-101 Version 09.25.08 Page 2 of IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS One of the following property restrictions and protective covenants are required to be recorded for all subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table listing each lot number, size and the allowable built -upon area for each lot must be provided as an attachment. Forms can be downloaded from ham://12o.enr.state.nc.us/su/bml2 forms.htm - deed restrictions. Form DRPC-1 High Density Commercial Subdivisions Form DRPC-2 High Density Developments with Outparcels Form DRPC-3 High Density Residential Subdivisions Form DRPC-4 Low Density Commercial Subdivisions Form DRPC-5 Low Density Residential Subdivisions Form DRPC-6 Low Density Residential Subdivisions with Curb Outlets By your signature below, you certify that the recorded property restrictions and protective covenants for this project shall include all the applicable items required in the above form, that the covenants will be binding on all parties and persons claiming under them, that they will run with the land, that the required covenants cannot be Changed or deleted without concurrence from the NC DWQ, and that they will be recorded prior to the sale of any lot. V. SUPPLEMENT FORMS The applicable state stormwater management permit supplement form(s) listed below must be submitted for each BMP specified for this project. Contact the Stormwater Permitting Unit at (919) 807-6300 for the status and availability of these forms. Forms can be downloaded from http://h2o.enr.state.nc.us/su/bmp forms.htm. Form SW401-Low Density Low Density Supplement Form SW401-Curb Outlet System Curb Outlet System Supplement Form SW401-Off-Site System Off -Site System Supplement Form SW401-Wet Detention Basin Wet Detention Basin Supplement Form SW401-Infiltration Basin Infiltration Basin Supplement Form SW401-Infiltration Trench Underground Infiltration Trench Supplement Form SW401-Bioretention Cell Bioretention Cell Supplement Form SW401-Level Spreader Level Spreader/Filter Strip/Restored Riparian Buffer Supplement Form SW401-Wetland Constructed Wetland Supplement Form SW401-Grassed Swale Grassed Swale Supplement Form SW401-Sand Filter Sand Filter Supplement Form SW401-Permeable Pavement Permeable Pavement Supplement Form SW401-Cistern Cistern Supplement Form SWU-101 Version 09.25.08 Page 3 of 4 �I. SUBMITTAL REQUIREMENTS Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ). A complete package includes all of the items listed below. The complete application package should be submitted to the appropriate DWQ Office. (Appropriate office may be found by locating project on the interactive online map at htto://h2o.enr.state.nc.us/su/msi maps.htm) 1. Please indicate that you have provided the following required information by initialing in the space provided next to each item. Initials • Original and one copy of the Stormwater Management Permit Application Form TMT • Original and one copy of the Deed Restrictions & Protective Covenants Form (if (V/A required as per Part IV above) • Original of the applicable Supplement Form(s) and O&M agreement(s) for each BMP TMT • Permit application processing fee of $505 (Express: $4,000 for HD, $2,000 for LD) payable to NCDENR TMT • Calculations & detailed narrative description of stormwater treatment/management TMT • Copy of any applicable soils report TMT • Two copies of plans and specifications (sealed, signed & dated), including: T rn-r - Development/Project name - Engineer and firm -Legend - North arrow - Scale - Revision number & date - Mean high water line - Dimensioned property/project boundary - Location map with named streets or NCSR numbers - Original contours, proposed contours, spot elevations, finished floor elevations - Details of roads, drainage features, collection systems, and stormwater control measures - Wetlands delineated, or a note on plans that none exist - Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations - Drainage areas delineated - Vegetated buffers (where required) VIL AGENT AUTHORIZATION If you wish to designate authority to another individual or firm so that they may provide information on your behalf (such as additional information requests), please complete this section. (ex. designing engineer or firm) Designated agent (individual or fum):leff Ashbaugh - Site Solutions Mailing Address:2320 West Morehead Street City:Charlotte State:NC Zip:28208 Phone: (704 1 521-9880 Fax: (704 ) 521-8955 Email:ieff®sitesolutionspa.com VIII. APPLICANT'S CERTIFICATION 1, (print or type name of person listed in General Information, item 2) Rich Olson certify that the information included on this permit application form is, to the best of my knowledge, correct and that the project will be constructed in conformance with the approved plans, that the required deed restrictions and protective covenants willb ded, and that the proposed project complies with the requirements of 15A NCAC 2H .100 Signature: Date: Form SWU-101 Version 09.25.08 Page 4 of 4 Permit No. (to be pmv4ed by DWQ) W ATp9 NCDENR' STORMWATER MANAGEMENT PERMIT APPLICATION FORM - 401 CERTIFICATION APPLICATION FORM WET DETENTION BASIN SUPPLEMENT This form must be filled out, printed and submitted. The Required Items Checklist (Pad fit) must be printed, filled out and submitted along with off of the required information. t•roiea name - - - --: Contact person - Phone number .704=521-9680 ,; Date 2/16n009=-- - -- Drainage area number Area.1 1 S. - II:dDESIG N'iINF,ORMATIONN' Site Charactedstics Drainage area - '-; 253,519 it' ✓ Impervious area, post -development A 13,256 ftz %impervious 44.67 % Design rainfall depth 7TT7777TTIn ✓ Storage Volume: Non -SA Waters Minimum volume required Volume provided Storage Volume: SA Waters 1.5' runoff volume Pre -development 1-yr, 24-hr runoff Post -development 1-yr, 24-hr runoff Minimum volume required Volume provided Peak Flow Calculations Is the pre/post control of the lyr 24hr stonn peak flaw required? 1-yr, 24-hr rainfall depth Rational C, pre -development Rational C, post -development Rainfall intensity: 1-yr, 24-hr storm Pre -development 1-yr, 24-hr peak Bow Post -development 1-yr, 24-hr peak Bow Pre/Post 1-yr, 24-hr peak Flow control Elevations Temporary pool elevation Permanent pool elevation SHWi elevation (approx. at the pen. pool elevation) Top of 1 Oft vegetated shelf elevation Bottom of 1011 vegetated shelf elevation Sediment cleanoul, top elevation (bottom of pond) Sediment Geanoul, bottom elevation Sediment storage provided Is there additional volume stored above the state -required temp. pool? Elevation of the top of the additional volume 1.14;326,-' OK 14.326 ft' OK, volume provided is equal to or in excess of volume required. it, " (Y or N) 3.4 in -'-0.30 (uni0ess) (unitiess) _ '--0:14'inthr OK 0.25 ft'/sec 0.49 fit'/sec 0.24 fo/sec 5.851msl _ '•5.50ifms1 5:50�fmsl 6:00'fmsl -•e5.00 fmsl Data not needed for calculation option #1, but OK if provided. 0.00, fmsl _ fmsl Data not needed for calculation option #1, but OK if provided. 1.00 It N (Yor N) i5.9 first OK Form SW401-Wet Detention Basin -Read Parts I. & 11. Design Summary, Page 16 of 18 Permit No. (to be provided by DWO) II...!DESIGN'INF0I MATION .ra`s`1--..z-d�f.es ...-.:,. �a ,;"-:,_xe- a%r ittu...':. s't^�,..-: �n .....-: .:'1 cs�xvfi:-i'o.'�1, ^arcv; *as54„`Y,,,,c e, .' 7in?6 ,i'3,.'`e.•wi'?a`.'.' Surface Areas Area, temporary pool _- ;""i57,012i fl? Area REQUIRED, permanent pool 12,701 Rz ✓ SAIDA ratio .;,-5.01,(unifess) Area PROVIDED, permanent pool, Ay„„yoy.42 479,'ft` ✓ OK Area, bottom of 10ft vegetated shelf, Abet_"[ c+::�., 35,880'•ft Area, sediment deanoul, top elevation (bottom of pond), A,., -_ r7 683 ft Volumes Volume, temporary pool t 14,326 ft3 OK Volume, permanent pool, VPo.,,,_Pw j.,.'rx: 131 376 fp Volume, forebay (sum of forebays d more than one forebay) ZF _;=28,583;; ft3 Forebay % of permanent pool volume 21.8% % OK SAIDA Table Data Design TSS removal Coastal SAIDA Table Used? Mountain/Piedmont SAIDA Table Used? SAIDA ratio Average depth (used in SAIDA table): Calculation option 1 used? (See Figure 10-2b) Volume, permanent pool, Vp,,,,-ym Area provided, permanent pool, A.,, Average depth calculated Average depth used in SAIDA, d., (Round to nearest 0.5ft) Calculation option 2 used? (See Figure 10-2b) Area provided, permanent pool, A�y�y Area. bottom of 10ft vegetated shelf, A. e Area, sediment deanoul, top elevation (bottom of pond), A,., 'Depth' (distance b/w bottom of 10ft shelf and top of sediment) Average depth calculated Average depth used in SAIDA, d., (Round to nearest 0.5ft) Drawdown Calculations Drawdown through orifice? Diameter of orifice (if circular) Area of onfice (if -non -circular) Coefficient of discharge (GO) Driving head (H.) Drawdown through weir7 Weir type Coefficient of discharge (C„.) Length of weir (L) Driving head (H) Pre -development 1-yr, 24-hr peak flow Post -development 1-yr, 24-hr peak flow Storage volume discharge rate (through discharge orifice orweir) Storage volume drawdown time Additional Information Vegetated side slopes Vegetated shelf slope Vegetated shelf width Length of flowpath to width ratio Length to width ratio Trash rack for overflow & orifice? Freeboard provided Vegetated filter provided? Recorded drainage easement provided? Capures all runoff at ultimate build -out? Drain mechanism for maintenance or emergencies -r90. % Y (Y or N) 5.01 (unrless) (Y or N) 3.00 in - inZ -- "" 0.60 (unitless) 0.12 ft N --:(Y or N) it ft3/sec OK ft3/sec OK ft3/sec ✓ days ✓OK, draws down in 2-5 days. OK, drawdown time is correct. 3 :1 OK -"-1.10:1 OK 'or ft OK -" 5:1 OK 4.0 :1 OK i(Y or N) OK - 0 ft OK =N,dr_ - (Y or N) Insufficient. Recorded drainage easement required. Y_. '. (Y or N) OK Form SW401-Wet Detention Basin-Rev.5 Parts I. & 11. Design Summary, Page 17 of 18 Permit (to be provided by DWQ) IllyiREQUIRED'ITEMSCHECKL`IST+^n'r` iYxxyv "�"s'�x`t1"�+'��'"rF�i �`�„„�� �a'�'` t '°°• •",^fix »�pfi,# r�a+,x���ary�. .... a ....... a .. _._.. _. .�'4x �.x �`u*.�.!fiM1.^.b� x, t, , sl 5��, v� .�`�..,.v`,.. � .r �� a� it�3Yx�?. Sv�'n. �Z .'?�sx • Cr^+Y� k n y r Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional Information. This will delay final review and approval of the project Initial in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Pagel Plan Inffials Sheet No. TMT 3.1 1. Plans (1" - 50' or larger) of the entire site showing: - Design at ultimate build -out, - Off -site drainage (if applicable), - Delineated drainage basins (include Rational C coefficient per basin), - Basin dimensions, - Pretreatment system, - High flow bypass system, - Maintenance access, - Proposed drainage easement and public right of way (ROVE, - Overflow device, and - Boundaries of drainage easement. TmT L 5'y 2. Partial plan (1" = 30' or larger) and details for the wet detention basin showing: - Outlet structure with trash rack or similar, - Maintenance access, - Permanent pool dimensions, - Forebay and main pond with hardened emergency spillway, - Basin cross-section, - Vegetation specification for planting shelf, and - Filter strip. TMT L S' y 3. Section view of the wet detention basin (1" = 20' or larger) showing: - Side slopes, 3:1 or lower, - Pretreatment and treatment areas, and - Inlet and outlet structures. / L"! r A�, 4. If the basin is used for sediment and erosion control during construction, clean out of the basin is specified on the plans prior to use as a wet detention basin. 7M 1' R gear 5. A table of elevations, areas, incremental volumes & accumulated volumes for overall pond and for Forebay, to verify volume provided. mT = 5• y 6. A construction sequence that shows how the wet detention basin will be protected from sediment unfit the entire drainage area is stabilized. T�'?T Ra eff 7. The supporting calculations. 'TMT' N c p or+ 8. A copy of the signed and notarized operation and maintenance (08M) agreement. TMT XI A 9. A copy of the deed restrictions (if required). mT R s ort 10. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. County soil maps are not an acceptable source of soils information. Form SW401-Wet Detention Basin-Rev.5 Part III. Required Items Checklist, Page 18 of 18 Permit Number: Sw—#-%fld-" ` 1 (to be provided by DWQ) Drainage Area Number: DA # 1. 1 Wet Detention Basin Operation and Maintenance Agreement I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and the removal efficiency of the BMP. The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the vegetated filter if one is provided:'§ i`, FF E 9V ED This system (check one): -NOV 14 !2008U0 ❑ does ® does not incorporate a vegetated filter at the outlet. UVY t)-V�,1f�H( This system (check one): does ® does not incorporate pretreatment other than a forebay. Important maintenance procedures - Immediately after the wet detention basin is established, the plants on the vegetated shelf and perimeter of the basin should be watered twice weekly if needed, until the plants become established (commonly six weeks). - No portion of the wet detention pond should be fertilized after the first initial fertilization that is required to establish the plants on the vegetated shelf. - Stable groundcover should be maintained in the drainage area to reduce the sediment load to the wet detention basin. - If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through the emergency drain should be minimized to the maximum extent practical. - Once a year, a dam safety expert should inspect the embankment. After the wet detention pond is established, it should be inspected once a month and within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance should be kept in a known set location and must be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. BMP element: Potentialproblem: How I will remediate theproblem: The entire BMP Trash/debris is present. Remove the trash/debris. The perimeter of the wet Areas of bare soil and/or Regrade the soil if necessary to detention basin erosive gullies have formed. remove the gully, and then plant a ground cover and water until it is established. Provide time and a one-time fertilizer application. Vegetation is too short or too Maintain vegetation at a height of long. approximately six inches. Form SW401-Wet Detention Basin O&M-Rev.3 Page 1 of 4 PermitNumber: (to be provided by D WQ) Drainage Area Number: �A-# 1,1 BMP element: Potential problem: How I will rernediate the problem: The inlet device: pipe or The pipe is clogged. Unclog the pipe. Dispose of the swale sediment off -site. The pipe is cracked or Replace the pipe. otherwise damaged. Erosion is occurring in the Regrade the swale if necessary to swale. smooth it over and provide erosion control devices such as reinforced turf matting or riprap to avoid future problems with erosion. The forebay Sediment has accumulated to Search for the source of the a depth greater than the sediment and remedy the problem if original design depth for possible. Remove the sediment and sediment storage. dispose of it in a location where it will not cause impacts to streams or the BMP. Erosion has occurred. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems. Weeds are present. Remove the weeds, preferably by hand. If pesticide is used, wipe it on the plants rather than spraying. The vegetated shelf Best professional practices Prune according to best professional show that pruning is needed practices to maintain optimal plant health. Plants are dead, diseased or Determine the source of the dying. problem: soils, hydrology, disease, etc. Remedy the problem and - replace plants. Provide a one-time fertilizer application to establish the ground cover if a soil test indicates it is necessary. Weeds are present. Remove the weeds, preferably by hand. If pesticide is used, wipe it on the plants rather than spraying. The main treatment area Sediment has accumulated to Search for the source of the a depth greater than the sediment and remedy the problem if original design sediment possible. Remove the sediment and storage depth. dispose of it in a location where it will not cause impacts to streams or the BMP. Algal growth covers over Consult a professional to remove 50% of the area. and control the algal growth. Cattails, phragmites or other Remove the plants by wiping them invasive plants cover 50% of with pesticide (do not spray). the basin surface. Form SW401 -Wet Detention Basin O&M-Rev.3 Page 2 of 4 0 I Permit Number: (to be provided by DWQ) Drainage Area Number: BMP element. Potential problem: How I will remediate the problem: The embankment Shrubs have started to grow -kernove shrubs immediately. on the embankment. Evidence of muskrat or Use traps to remove muskrats and beaver activity is present. consult a professional to remove beavers. A tree has started to grow on Consult a dam safety specialist to the embankment. remove the tree. An annual inspection by an Make all needed repairs. appropriate professional shows that the embankment needs repair. (if applicable) The outlet device Clogging has occurred. Clean out the outlet device. Dispose of the sediment off -site. The outlet device is damaged Repair or replace the outlet device. The receiving water ETOSIon or other signs of Contact the local NC Division of damage have occurred at the Water Quality Regional Office, or outlet. the 401 Oversight Unit at 919-733- 1786. The measuring device used to determine the sediment elevation shall be such that it will give an accurate depth reading and not readily penetrate into accumulated sediments. When the permanent pool depth reads 6.5 feet in the main pond, the sediment shall be removed. When the permanent pool depth reads 1.5 feet in the forebay, the sediment shall be removed. Sediment Removal Ek. 3.0 1- 0 4=2 I 1113 11 D1 JIM BASIN DIAGRAM (fill in the blanks) Permanent Pool Elevation 5.5 ranen�pool )lu_ 0 Sediment Removal Elevation 0.0 ef�vx� ------------ ft Min. Bottom Elevation -1.0 Sediment Storage MAIN POND 1-ft Storage Form SW401 -Wet Detention Basin O&M-Rev.3 Page 3 of 4 Permit Number: (to be provided by DWQ) I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project name:South Park Athletic Complex BMP drainage area number:DA #1.1 Print name:Rich Olson Title:City Manager Address:PO Box 347 Elizabeth Cily, NC 27909 Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. e r c c- , / �f �Ile /L/ , a Notary Public for the State of County of _24Q"a&9X I do hereby certify that I& personally appeared before me this day ofAo�yem2eL R- and acknowledge the due execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal, SEAL My commission expires Form SW401 -Wet Detention Basin O&M-Rev.3 page 4 of 4