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HomeMy WebLinkAboutSW8960920_CURRENT PERMIT_19961112STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW �596L�l? �110 DOC TYPE CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE -y YYYYMM DD State of North Carolina Department of Environment,' Health and Natural Resources Division of Water Quality James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director November'12, 1996 Mr. Matt Murphy, President Telfair Summit, L.L.C. 1508 Southeast Harbour Drive Wilmington, North Carolina 28409 Subject: Permit No. SW8 960920 Telfair Summit j High Density Commercial Stormwater Project New Hanover County Dear Mr. Murphy: The Wilmington Regional Office receivedi the Stormwater Management Permit Application for Telfair Summit on September 25, 1996, with final information on October 22, 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. SW8 960920 dated November 12, 1996, for the construction of Telfair Summit. This permit shall be effective from the date of issuance until November 12, 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, or limitations contained in this permit are unacceptable, you have the right to request an ajudicatory 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. If you have any questions, or need additional information concerning this 395-3900. i Sincere ly,-1--lI Regional W KE/arl: S:1WQSISTORMWAT1Pi✓RMIT1960920.NOV cc: Joseph Hill, P.E. Tony Roberts, New Hanover County Inspections; Beth Easley, New Hanover County Engineering Linda Lewis i Wilmington Regional Office Central Files 1 contact Linda Lewis, or me at (910) Quality Supervisor P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-5083 FAX 919-733-9919 An Equal Opportunity Affirmative Action Employer State Stormwater Management Systems Per No. SW9 960920 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES DIVISION OF WATER QUALITY STATF. S -ORA WATF.RIVIANAGFIIIFNYT PERMIT , HIGH DENSITY DEVELOPMENT i 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 I Telfair Summit, L.L. C. Telfair Summit New Hanover County FOR THE construction, operation and maintenance of 2 Detention Ponds 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. This permit shall be effective from the date of issuance until November 12, 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 page 3 of this permit, the Project Data Sheet. The stormwater control has been designed to handle the runoff from 179,392 (includes 33,902 square feet off -site) square:feet of impervious area. 3. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. a ', 2 State Stormwater Management Systems Permit sln. SWR 960920 i DIVISION OF WATER QUALITY PROJECT DATA SHEET Project Name: Telfair Summit i Permit Number: II 960920 Location: { New Hanover County Applicant: Mr. Matt Murphy, President Mailing Address: Telfair Summit, L.L.C. i 1508 Southeast Harbour Drive Wilmington, North Carolina 28409 Application Date: i September 25, 1996 I Water Body Receiving Stormwater Runoff: Telfairs Creek Classification of Water Body: i "C Sw" 1f Class SA, chloride sampling results: NIA Pond Depth: 6 feet Permanent Pool Elevation: 1 16.3 MSL Total impervious Surfaces Allowed: 179,392 square feet (includes 33,902 square feet off -site) Offsite Area entering Pond: 33,902 square feet I Green Area entering Pond: 436,035 square feet Required Surface Area: 9,638 square feet Provided Surface Area: I 46,825 square feet Required Storage Volume: 16,019 cubic feet Provided Storage Volume: I 24,154 cubic feet I Temporary Storage Elevation: 16.8 MSL Controlling Orifice: I' 2.511 pipe 4 i • 3 State Stormwater Management Systems • pelt NO S W R 960920 i 4. The tract will be limited to the amount of built -upon area indicated on page 3 of this permit, and per approved plans, including the off -site areas. If any future development occurs within the area shown as the off -site drainage to ponds 1 and 2, the permittee must notify DWQ prior to development in order for DWQ to request a revised plan. . The permittee is responsible for verifying that the proposed built -upon area does not exceed the allowable built -upon area. 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. f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. In addition, the Director may determine that other revisions to the project should require a modification to the permit. 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: i _ a. The stormwater management system shall be constructed in it's entirety, vegetated and operational for it's intended use prior to the construction of any built -upon surface except roads. b. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency. The approved Operation and Maintenance Plan must be followed in it's entirety and maintenance must occur at the scheduled intervals including, but not limited to: a. Semiannual scheduled inspections (every 6 montlis). 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. g. Access to the outlet structure must be available at all times. 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. 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. 4 State Stormwater Management Systems Permit No- 9wa 960 5. 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. i 6. A copy of the approved plans and specifications shall be maintained on file by the Permittee for a minimum of ten years from the date of the completion of construction. M. GENERAL CONDITIONS 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. 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). 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. ; k 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. I 5. The permittee grants DEHNR Staff permission to enter the property for the purpose of inspecting all components of the permitted stormwater management facility. , 6. 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 12th day of November, 1996. I NORTH CARD NV ONMENTAL MANAGEMENT COMMISSION A, r6ston Ho-A��Jr., P.E., Director ivision of Water Quality ! By Authority of the Environmental Management Commission Permit Number SW8 960920 5 State Stormwater Management Systems Permit No SWX 960920 Telfair Summit ' Stormwater Permit No. SW8 960920 New Hanover County Engineer's Certification i as a duly registered Professional Engineer in the State of North Carolina, having been authorized to observe (periodicallylweeldylfull time) the donstruction 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. Noted deviations from approved plans and specification: i i Signature Registration Number Date 6 DIVISION OF ENVIRONT MNTAL MANAGEMENT NORTH CAROLINA STORMWATER MANAGEMENT PERNI[IT APPLICATION I. GENERAL INFORMATION 1. Project Name Tel fai r Summit 2. Location, directions to project (include County, Address, State Road) Attach map. Access from U. S.!, 421 along Valley Brook Road,'South of The Cape Boulevard 3. Owner's Name Tel fair Summit, L.L.C. Phone (910)799-2646 4. Owner's Mailing Address: ':1508 Southeast Harbour Drive City Wi 1 mi ngton State N. C. Zip 28409 5.Nearest ReceivingStream Cape, Fear River, Telfair's CreekClass SC sw 6.Projectdescription Residential, duplex housing project with wet detention treatment for all curb and gutter streets and buildings. Runoff from non —curb and gutter steets will flow directly from shoulders to surroundding wetlands. I H. PERMIT INFORMATION 1 • Permit No. (To be filled in byDEM) Si>Lt Chi Fee Enclosed $ 385.00 2. Permit Type X New ;Renewal_ 3. Project Type: Low Density X Detention. Modification (existing Permit No.?) Infiltration Other: Redevelop General Dir Cert 4. Other State/Federal Permits/Approvals Required (Check appropriate blanks) CAMA Major Sedimentation/Erosion Control X 404 Permit X III. BUILT UPON AREA (Please see' I NCAC 2H.1005 thrt .1007 for applicable density limits) Drainage Drainage Breakdown of Impervious Area Basin Basin (Please indicate below the design impervious area) (Cape Fear River) (Telfairs Crk) (CFR) (Telfair's Crk) Classification SC SC sw Buildings 1.93 Ac. 0 Allowable Impervious Area 30% 30% Total Project Area 14.13 AC. 16.96 AC. W49ways 7.41 Ac. 0.51 Ac. +rkin-.{SW_ Proposed Impervious Area 4.12 AC. 0.51 AC. Other % Impervious Area 29.2% 3.0% Totals 3.34 Ac. 0.51 Ac. IV. STORININ'VATER TREATMENT' (Describe how the runoff will be treated) Wet detention pond for buildings and collection system. Low density option for access street through low—lying area. ATTACHMENT A LOW DENSITY AND SUBDIVISION PROJECTS GENERAL SUBMITTAL REQUIREMENTS 1. A completed stormwlater permit application. 2. Two sets of plans showing north arrow, scale, revision date, prop ertylproject boundaries, lot lines, proposed and existing contours, drainage areas, mean high water line, wetlands, easements, the 30' minimum vegetated buffer between impervious areas and surface waters, proposed impervious areas, and road cross -sections. 1 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, please break down the calculation into buildings, roads, parking, and other (include all impervious areas). 4. Low density projects with curb and gutter will require: i a. Drainage area delineation and swale locations shown on the plans. b. Detail of the 'swale, showing minimum 5:1 side slope. C. Velocity calculations, indicating a non -erosive flow for the 10 yr storm. d. Inlet and outlet elevations. Maximum longitudinal slope is 5%. e. The type of vegetated cover specified on the plans. DEED RESTRICTION REQUIREi1MENTS The following statements must be included for all low density projects, and for all subdivisions: No more than 179,470 square fee4; excluding the 2, 100' non —curb —and --gutter section of Valley Brook Road, . 1 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 continued 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. No one may fill in or pipe any; roadside or lot -line swale, except as necessary to provide a minimum driveway crossing. For curb and gutter projects, no on may pipe, fill in, or alter any lot line swale used to meet North Carolina Stormwater Management Permit requirements. , All runoff from rear of buildings shall be rout d to the stormwwater collection syst m by grading the rear of the lots to drain the streets o.r throe h the u e f roo to tters. NOTE IfQlot sizes vary significantly, me owner/ eveloper must p o e an attachment listing each lot number, size, and the allowable built -upon area for each lot.