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HomeMy WebLinkAboutSW7971023_CURRENT PERMIT_20070305STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW �971�0 DOC TYPE CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE] �DS YYYYMMDD Wa-RQ �QF W ATFRO Michael F. Easley, Governor �O G William G. Ross Jr., Secretary rNorth Carolina Department of Environment and Natural Resources Alan W. Klimek, P.E. Director Division of Water Quality March 5, 2007 Mr. Fred G. Mills Pasquotank Associates, L.P. P.O. Box 6171 Raleigh, NC 27628 Subject: Permit No. SW7971023 Renewal Lakeside Apartments High Density Stormwater Project Pasquotank County Dear Mr. Mills: The Washington Regional Office received a completed Stormwater Renewal Application for the subject project on December 14, 2006. Staff review of the files and an on site inspection has determined that the project will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H.1000. We are forwarding Permit No. SW7971023 dated March 5, 2007 to Pasquotank Associates, L.P. for a wet detention pond, to serve Lakeside Apartments located on Cameron Drive in Elizabeth City, NC. This permit shall be effective from the date of issuance until March 5, 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. The issuance of this permit does not resolve any previous violations of the stormwater rules for construction without a per it. 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 150E of the North Carolina General Statutes, and filed with the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, NC 27699-6714. Unless such demands are made this permit shall be final and binding. If you have any questions, or need additional information concerning this matter, please contact Roger Thorpe or me at (252) 946-6481. AS'cere y, , "-_ Al Hodge, Regional Supervisor Surface Water Protection Section . Washington Regional Office cc: George Finch/Boney & Associates Washington Regional Office Central Files North Carolina Division of Water Quality Internet: 1,1, nc,rmannmlln.or^ One 943 Washington Square Mall Phone (252) 946-6461 NorthCarolina Washington, NC 27889 FaN 12521946-921' Natural J/ State Stormwater Management Systems Permit No. SW7971023 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 Pasquotank Associates, L.P. Lakeside Apartments Pasquotank 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 a wet detention pond to serve Lakeside Apartments located on Cameron Drive in Elizabeth City, NC. This permit shall be effective from the date of issuance until March 5, 2017 and shall be subject to the following specified conditions and limitations: 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 2 of this permit, the Project Data Sheet. 3. A maximum of 2.11 acres of built upon area is allowed. 4. All stormwater collection and treatment systems must be located in either dedicated common areas or recorded easements. The final plats for the project will be recorded showing all such required easements, in accordance with approved plans. 5. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. DIVISION OF WATER QUALITY PROJECT DATA Project Name: Lakeside Apartments Permit Number: SW7971023 Location: Pasquotank County Applicant: Pasquotank Associates, L.P. Mailing Address: P.O. Box 6171 Raleigh, NC 27628 Application Date: 12/14/2006 Receiving Stream: UT to Knobbs Creek Classification of Water Body: C Total Site Area: 20.71 ac Drainage area: 5.0 ac Total Impervious allowed: 2.11 sf Wet Pond Depth: 4.0 ft Required Storage Volume: 18,150 cf Provided Storage Volume: 79,500 cf Required Surface Area: 0.19 ac Provided Surface Area: 5.48 ac. Controlling Orifice: No outlet or overflow structure 6. 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. 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. 8. 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 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. 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: 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 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. 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. Ill. 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. 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. The Permittee, at least six (6) months prior to the expiration of this permit, shall submit in writing a request for an extension along with appropriate application fee. Permit issued this the 5 th day of March 2007. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION for Alan W. Klimek, P.E. Director Division of Water Quality By Authority of the Environmental Management Commission Permit Number SW7971023 Pasquotank Associates, L.P. Lakeside Apartments Pasquotank County Stormwater Permit No. SW7971023 Designer's Certification I, L:7. K0VJ9--f I �LJY-M6PVm , as a duly registered Professional Engineer in t e of North Carolina, having been authorized to observe eriodicall //f ) the construction of the project, Q L a�e S I i� 104W�5 (Project) for 4t)iymk A--,50UAAS LP (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 1V �t--,L'y-V 'c/'U"r"'r� Registration Number i od 84 Date O1 1,p — 7-O0& �tEC'Ei1�ED OCT 16 2006 E 10/23/2006 15:13 19197552245 MILLS CONSTRUCTION PAGE 03 SW CK I0-I9 jo(eMichael 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 -SURFACE WATER PROTECTION SECTION Ri E,CyRE. 0VJED I. CURRENT PERMIT INFORMATION: DEC 14 2006 1. Stormwater Management Permit Number: S W 1 q7 102 3 9)W1 a tnf A D/� 2. Permit Holder's name: Pa Its b 3. Signing official's name: Frad Is Title: I`` " PM+Atq- (person legally responsible for permit 4. Mailing address: 0. Boy, (0 1 "7 1 City: a I e irk State: N C ZipCode: 27625 Phone: 919.7651155 FAX: 9 M - 7 55. 2 24.5 (Area Code and Number) (Area Code and Number) 5. Project Name: Lakeside mr,4f, 6. Location of Project: (street address) —Caw, AMI eyo" t D (, v,e) . E 1 b ?i b9_ i %r 4u . ►J •C:. 7. Directions to Project (from neareatmajor Intersection) U•S�i_% r 4u5i- YioyTvi 0P GJ.h. 114'ia 11. PERMIT INFORMATION 1. Specify the type of stormwater treatment (Wet pond, Infiltration, etc.): We+ QOvt d 2. List any changes (from project that Was originally approved, attach additional pages If needed) N ow, 3. Do you have a copy of the original Operation and Maintenance Agreement? Yes 7No_ Applicant's Certification: tul, I is , certify that the information included on this tlon, is tot the best of my knowledge, correct and complete. Signature: X Date: k 1�2 —%Q Ito Submit this completed form along with an application fee of $420.00 and a copy of the designer's certification to the address listed below. Norm Campos Division of Weber Cuallw 943 Washington Square Kbii Phone (25I) 946-6481 Customerse:V01.877-686748 Washington Regional OfFlce We911i0gton, NC 27889 FAX t252)948-9215 Internet h2o.enr.stete.ncu3 One k6rthCarolina An Epual opportunity/Al9mreeve Aclim Employer- 50% Retydadn095 Post Consumer Paper vTatu,",14(I 11/15/2006 11:53 18005222396 PAGE 03 Permit No# _ WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT Maintenance activities shall be performed as follows: DEC 14 2006 After every significant runoff producing rainfall event and at least monthly: DWQ-1A1 /t RO sis t1. Inspect the wet detention basystem for sediment accumulation, erosion, trash accumulation,tlV Pi lJ vegetated cover, and general condition. b. Check and clear the orifice of any obstructions such that dmwdown.of the temporary pool occur; within 2 to 5 days as -designed _ ..._.-..------ 2. Ri, air eroded areas immediately, re -seed as necessary to maintain good vegetative . `p � y ary g getative cover, mow vegetative -- -cover to maintains maximum height of six inches, and remove trash as needed. 3. In spect and repair the collection system (i.e. catch basins, piping, ,wales, riprap, etc.) quarterly to maintain proper functioning. 4. Remove accumulatedsediment from the wet detention basin system semi-annually or when depth is reduced to 75% of the original design depth (see diagram below). Removed sediment shall be disposed of in an appropriate manner and shall be handled in a manner that will not adversely impact water quality (i.e. stockpiling near a wet detention basin or stream, etc.). 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 When the permanent pool depth reads feet in the train pond, the sediment shall be removed. feet in the forebay, the sediment shall be removed. BASIN DIAGRAM t%111In the blank) Permancnt Pool Elevation SzJimem i:.n ,1c�1 L1. 1 7vl� V Sediment Removal Elevation '? Bottom Elevation FOREBAY iar:�1; 4111 5. Kemove cattails and other indigenous wetland plants when they cover 50% of the basin surface. These plants shall be encouraged to grow along the vegetated shelf and forebay berm. 6. I'(the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through the emergency drain shall be minimized to the maximum extent practical. 11/15/2006 11:53 18005222396 PAGE 04 7. All components of the wet detention basin system ahall be maintained in good worldng order. H. Rrmove all trees and heavy woody vegetation from the basins and dike wells. I a�o�cecage and ages by my signature below that I am responsible for the performance of the eight procedures listed above. I agree to notify DWQ of any problems with the system or prior to any chanl;es to the system or responsible partyc Print name; V ri A r, M I I Pit Phone; Signadl Date: n, P/ x -/ v w Nate. The 1WHY responsible pang should sot be a homeowners emcialtea mien more than 50 of �e loa have ben sold and fl resident ofthe subdivision has bees named the president a Notary Public for the State of Cotmly of ado hereby certify that/77—&— � G persoaaally appeared before me this / 0'0' day of and acknowledge the due execution of the forgoing wet detention basin maintenance requimmerts. Witness my hand and official sea(, CATHERINE F. CONS NOTARY PUBLIC WAKE COUNTY, N 1�t t•1y Commission Expires07-1'. My commission expires 7— %S 09 l�G QED DEC 14 2006 WRITIMMILIall 11/15/2006 11:53 18005222396 PAGE 02 Project Name:—i.Li1fK1—ltDA/i1M i/j jiC Stormwater Pertmt No.: A vtIQ 7yn 3 Designer's Certification 1. G • 20b&r`t'(5? r4 W as a duty Registered ProfessiOnal Engineer in the State of North Carolina, having been authorized to observe (periodically/a the construction of the project, "�2 r k) 4q—W Morin• -5 for _F0,a q wo+a*L 45-s c- i akG t L P (Project Owner) hereby state that to the best of my abilities, due care and diligence was used in the Project construction such that the construction was observed to be built within sub inn m of the approved plans andsnceifications. Signature iki Regis"don Numb" I 00 M- Dare I I-17- 0o0& Certification Requirements: '*i, ✓ 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.AI1 the built -upon ate& associated with the project is graded such that the runoff drains to the system. ✓ ,I -All roof drains are located such that the runoff is directed into the system. L5_The outiet/bypass structure elevations are per the approved plan. N -6.The outlet structure is located per the approved plans. PIZA-7.Trash rack is provided on the outlet/bypass structure. . g.All slopes are grassed with permanent vegetation. '� 9.Vegetated slopes are no steeper than 3:1. I OThe 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. ✓ 13.A11 required design depths are provided. I4.All required pans of the system are provided, such as a vegetated shelf, and a forebay. �/ 15.7he required system dimensions are provided per the approved plans. ti 117 UOC' CI Ic,97Ed`V LLD DEC 14 2006 DWQ-VVAR® ,�Q34CIA, .c�rr/., �, • .tom J•�AL�fLi.�. /�. J/. AG POND MAINTETANCE REQUIRIIVIEN INS Project Name: I.RKE51i7E PPtsRtrn«ktrs uq[C 14 2006 Permittee ?A�iQ Dh5oC1Ai7=S UMc1Ey �keAf' Dv'� VV%t1R® Address 7o Soc W-11, V-ktgV'A' L-l.e. 2 t.2$ PhoneNo. 61111�155.q►55 I. Monibly;'or.after every runoff producing rainfall event, whichever conics first: ' ..A inspect the trash rack; remove accumulated debris, repair/replace if it is not functioning. B It and clear the orifice of any obstructions. If a pump is used as the drawdown inecbiaism, pump operation will be checked. A Jog of test runs of the pump will be kept on site and made !available to DWQ personnel upon request. C Inspect the pond side slopes and grassed irilet swales; remove trash, and repair eroded areas before the.next rainfall event. D If the pond is operated with a vegetated filter, the filter will be checked for sediment accumulation, trasb accumulation, erosion and proper operation of the flow spreader mechanism. Repairs/cleaning will be done as necessary. D. Quarterly (Four times a year): A. Inspect the collection system (ie. catch basins,piping, grassed swales) for proper functioning. Accumulated trash will be cleared from basin grates, basin bottoms, and piping will be checked for obstructions and cleared as required. j B: Pond inlet pipes will, be checked for undercutting. Riprap or other energy dissipation structures will be replaced, and broken pipes will be repaired. III. Semi-annually. (twice a year): A. Accumulated sediment from the bottom of the outlet structure will be removed. B: The forebay depth will be checked at various points. Sediment removal is required when the depth is reduced to 75 % of the original forebay design depth of a e C. Grassed swales, including the vegetated filter if applicable, will be reseeded twice a year as necessary. POND MAINTENANCE REQUII BffiN rS PAOE 2 DEC 14 2006 Iv Annually (Once it year):. M-fNAR0 A The pond depth willbe checked at various points. Sediment removal is required when the depth is reduced to 75 % of the original design depth or 3', whichever is greater. Design depth ;is 4 measured vertically from the orifice down to the pond's bottom. Sediment must be removed to at least the original design depth. j. Y: General: A. Mowing :of the side slopes will be accomplished according to the season. Maximum grass height will be 6": B ..Cattails :are encouraged along the pond perimeter, however they will be removed when they -`coverrnom than;1/2 the surface area of the pond. The best time to cut them is at the end of the growing sea on; in November. Environmentally sensitive chemicals for use in killing cattaiis'can also be "used. Contact your nearest Agricultural Extension Agent. s C . The orifrcelputnp is designed to draw down the porid in 2-5 days. If drawdown is not accomplished in that time, the orifice will be replaced with a larger or smaller orifice. Slow ..drawdowp may be attributed to,a clogged system. The source of the clogging will be found and eliminated. D. All components of the detention pond system will be kept in good working order. Repair or replacement components will meet the original design specifications as per the approved . stonnwater plan. If previously approved components are determined to be ineffective, the component must be redesigned and/or replaced. VI. ; Special Requirements: I,*,.— I U, s hereby acknowledge that I atn the financially ' . {plewe print or type omne dror4) >•esponsible,,paity for maintenance of this detention pond. I will be responsible for the performance of the maintenance as outlined above, as pan of the Sion nwater Management Permit received for this project. Signanire Date: 12 2 -g/7 Revi,ed 2/75/97