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HomeMy WebLinkAboutSW8060808_HISTORICAL FILE_20060807STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE _�;'9k.29Q � YYYYMMDD dun NCDENR North Carolina Department of Environment and Natural Resources 127 Cardinal Drive, Wilmington NC 28405 (910) 796-7307 FAX (91 D) 350-2004 Request for Express Permit Review FILL-IN all information below and CHECK required Permit(s). FAX or email to Cameron. Weaver@n_cmail.net along with a narrative and vicinity map of the project location. Projects must be submitted by 9:00 A.M. of the review date, unless prior arrangements are made. 15 06 04:27p Rae Pc 19102512208 APPLICANT Name Town of Leland Company Town of Leland Address 102 Town Hall Drive CitylState_Leland Zip_28451_ County_Brunswick Phone 910-371-0148 ' Fax 910-371-1073 Email PROJECT Name —Westport Fire Station p.2 PROJECT SYSTEM(S) TRIBUTARY TO (STREAM NAME) —Cape Fear RIVER BASIN ENGINEER/CONSULTANT, Shane Lippard, PE Company _Right Angle Engineering Address-212 Princess Street City/State_Wilmington, NC_Zip_28401 County_New Hanover Phone-251-8544 Fax,251-2208 Emaihraepcsl@bellscuth net State or National Environmental Policy Act (SEPA, NEPA) - EA or EIS Required ❑ Yes ® No ❑ STREAM ORIGIN Determination; # of stream calls; Stream Name ❑ STORMWA TER ❑ Low Density ® High Density -Detention Pond ❑ high Density -Other Wetlands MUST be addressed below ❑ Low Density -Curb & Gutter ❑ High Density- Infiltration ❑ Off Site ❑ COASTAL ❑ Excavation & Fill ' ❑ Bridges & Culverts ❑ Structures Information MANAGEMENT ❑ Upland Development ❑ Marina Development ❑ Urban Waterfront X LAND QUALITY ® Erosion and Sedimentation Control Plan with _1.5 acres to be disturbed. r-. -- --- ----------------------------- ----------- --- ----- ---- - -------- -- -------------------------------------------------------------------------------------- WETLANDS (401) Wetlands on Property ❑ Yes ®�No Isolated Wetlands on Property ❑ yes'®,No Check all that apply Wetlands Will Be Impacted Elyes ❑ No Wetland Impacts. Ac*s) Wetlands Delineation has been completed El Yes El No ❑ Buffers Impacted: Acre(s) USA COE Approval of Delineation completed ❑ Yes ❑ No 404 Application in process wIUSACOE ❑Yes []No l Permit received from USAGE []Yes []No 401 Application required ❑Yes ❑ No If Yes, ❑ Regular ❑ Express ----------------------------------------------------------------------------------------------------------------------------------------------------------------------- Additional fees, not to exceed 50% of the original Express Review permit application fee, may be charged for subsequent reviews due to the insufficiency of the permit applications. SUBMITTAL DATES SW CAMA LQS 401 For DENR use only Fee Split for multiple permits: Total Fee Amount $ NC®ENR North Carolina Department of Environment and Natural Resources Division of Land Resources James D. Simons, PG, PE Land Quality Section Michael F. Easley, Governor Director and State Geologist William G. Ross Jr., Secretary 8/3/2006 LETTER OF RECEIPT FOR AN EROSION CONTROL PLAN EXPRESS REVIEW Town of Leland Mr. Bill Farris, Town Manager 104 Town Hall Drive Leland, NC 28451 RE: Project Name: Westport Fire Station Express Project Number: Bruns-2007-049 County: Brunswick, Leland, NC Hwy 133 River Basin: Cape Fear Submitted By: Right Angle Engineering Date Received by LQS: August 3, 2007 Plan Type: NEW Dear Mr, Farris: This office has received a soil erosion and sediment control plan for the project listed above which was submitted as required by the North Carolina Sedimentation Pollution Control Act (G.S. 113A-57 (4)). The Act requires that all persons disturbing an area of one or more acres of land must'obtain approval of a soil erosion control plan prior to the commencement of the land -disturbing activity (G.S. -113A-54(d) (4)). The review period for an express review is three days of receipt of a complete plan. If additional information is requested, it must be submitted within five working days of receipt. Commencement or continuation of a land -disturbing activity under thejurisdiction of this Act prior to the approval of an erosion and sediment control plan is a violation of the Act. We have performed a preliminary review of your submitted plan and have determined that additional information will be necessary before a final review can be completed. Enclosed is a checklist of items that must be submitted before we can complete the review process. Failure to provide the additional information may result in disapproval of your plan. The approval of an erasion and sediment control plan is conditioned on the applicant's compliance with Federal and State water quality laws, regulations and rules. If you have questions please do not hesitate to contact this office. Your cooperation in this matter is appreciated and we look forward to working with you on this project. Sincerely, aa Carol N. Miller Assistant Regional Engineer cc: Mr. Shane Lippard, P.E., Right Angle Engineering, P.C. LQS-WiRO; SWS-WiRO� Wilmington Regional Office 127 Cardinal Drive Ext., Wilmington, North Carolina 28405-3845 • Phone: 910-796-72151 FAX: 910-350-2004 Jun 15 06 04: 27p Rae Pc Q� 191025122013 p. 2 NCDENR North Carolina Department of Environment and Natural Resources l U� 127 Cardinal Drive, Wilmington NC 26405 (910) 796-7307 FAX (910) 350-2004 Request for Express Permit Review � _J0 FILL-IN all information below and CHECK required Permit(s), FAX or email to Cameron. Weayer(a)ncmail.Ret along with a narrative and vicinily map of the project location. Projects must be submitted by 9:00 A.M. of the review date, unless prior arrangements are made. APPLICANT Name Town of Leland Company Town of Leland Address 102 Town. Hall Drive City/State_LeIand Zip_28451_ County —Brunswick Phone 910-371-0148 Fax 910-371-1073 Email PROJECT Name —Westport Fire Station PROJECT SYSTEM(S) TRIBUTARY TO (STREAM NAME) —Cape Fear RIVER BASIN ENGINEER/CONSULTANT Shane Lippard, PE Company —Right Angle Engineering Address-212 Princess Street City/State—Wilmington, NCZip_28401 County —New Hanover Phone-251-8544 Fax_251-2208 Email_raepcsl@bellsouth.net ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ State or National Environmental Policy Act (SEPA, NEPA) — EA or EIS Required ❑ Yes ® No ❑ STREAM ORIGIN Determination; # of stream calls; Stream Name ® STORMWA TER ❑ Low Density ® High Density -Detention Pond ❑ High Density -Other Wetlands MUST be addressed below ❑ Low Density -Curb & Gutter ❑ High Density -Infiltration ❑ Off Site ❑ COASTAL ❑ Excavation & Fill ❑ Bridges & Culverts ❑ Structures Information MANAGEMENT ❑ Upland Development ❑ Marina Development ❑ Urban Waterfront ® LAND QUALITY ® Erosion and Sedimentation Control Plan with —1.5 acres to be disturbed. WETLANDS (4011) Wetlands on Property ❑ Yes ® No Isolated Wetlands on Property ❑ yes ® No Check all that appl Wetlands Will Be Impacted ❑ Yes ❑ No Wetland Impacts: Acre(s) Wetlands Delineation has been completed ❑ Yes ❑ No ❑ Buffers Impacted: Acre(s) USA COE Approval of Delineation completed ❑ Yes ❑ No 404 Application in process wIUSACOE ❑Yes []No I Permit received from USAGE ❑Yes [:]No 401 Application required ❑Yes ❑ No If Yes, ❑ Regular ❑ Express Additional fees, not to exceed 50% of the original Express Review permit application fee, may be charged for subsequent reviews due to the insufficiency of the permit applications. For DENR Ilse only SUBMITTAL DATES: Fee Split for multiple permits: SW $ CAMA $ LQS $ 401 $ Total Fee Amount $ Jun 15 06 04:27p Rae Pc 5 19102512208 p.3 VICINITY MAP (NOT TO SCALE) U-74-76 p VILLgGE RD. U C w cn Z C7 � Aila15(Yd W-AL N 7JPA1_ w ��OS� FRy U RE STATION0 Jun 15 06 04:27p Rae Pc 19102512208 p.5 1. Project Description. The Project is proposed to be construction of 10,000 1200 square foot fire station structure, concrete entrance drives, asphalt parking areas, storm drainage, water, and sewer. The land disturbing activity associated with the project will consist of clearing and grubbing of vegetation, preservation of existing trees, grading of the site, and sediment and erosion control measures such as a silt fence, gravel construction entrance, and a check dams. Also included in the project will be storm piping to collect the parking drainage and direct it to the wet detention pond. The total area which will be disturbed for this project is 1.6 acres. Total impervious area will be 40,000 SF (0.92 AC) for the proposed construction. 2. Site Description: The project site is in Brunswick County, NC, located on Highway 133 just south of the entrance to Westport Subdivision. The property on which the development will take place is currently owned by the Town of Leland. On site soils consist mainly of Leon and Baymeade soils. These soils are mainly loamy, fine sands. General slope of the site is from west to east towards the front of the site. Land use in the vicinity is residential and rural agricultural. 3. Adjacent Property: The areas adjacent to the project site are residential areas. 4. Drainage Considerations: There are three major drainage features existing on the site. The site is mostly flat with slight slope from west to east. A large natural drainage area exists behind the property and drains under Highway 133. A 36" concrete pipe under Highway 133 carries the drainage across the roadway and into an existing drainageway to Jackies Creek. The road and parking areas will be bounded with curb and gutter to curb inlet collection basins. The curb inlets will be piped to two entrances into the forebay of the wet detention basin. Both of the entrance pipes to the basin will be 18" diameter. The runoff from the buildings will be directed into the collection system and sent to the basin. The basin is sized to provide sufficient runoff capacity filtration for the entire allowable impervious area. The wet detention basin is to provide detention of the pre -construction and post -construction runoff difference and meet the 90% TSS water quality requirements. The amount of retention was based on the Type III rainfall distribution of the 25 year, 24-hour storm. Calculations are provided. 5. Erosion Control Considerations: The following erosion control measures are used on this project: Temporary Gravel Construction Entrance/Exit To prevent sediment from leaving the site, temporary gravel construction entrances should be installed where the access road enters the site and instersects with Village. For dimensions and specifications, see construction details. Westport Fire Station June 2006 ti Jun,15 06 04:27p Rae Pc 19102512208 P.6 2. Land Grading The existing slope of the site is from south to north towards the front of the parcel. Most of the disturbed areas on the site will sheet flow to the existing drainage patterns on the site. 3. Silt Fence Silt fence should be installed prior to clearing and grading activities. Silt fence should be checked routinely. If needed, silt fence should be cleaned and replaced if damaged. See Construction Detail for dimensions and specifications. 4. Wet Detention Basin A wet detention basin will be constructed for long term runoff. pollutant control, and this area will be used as a sediment basin during construction. Outlet control structure with rip rap energy dissapator will be installed when basin is excavated and 30' sodded vegetated filter will be placed after the rip rap to provide additional filtering prior to discharge into the existing wetland. 6. Construction Schedule: 1. Obtain plan approval and other applicable permits. 2. Hold pre -construction meeting at least one week prior to beginning construction. 3. Install temporary construction entrance/exits. 4. Before clearing and grading of the site, install silt fencing, detention basin with outlet structure, and clean and replace as necessary. 5. Begin clearing and grading of the site. 6. Install storm piping. 7. Install new roadway. 8. Sod/Seed, mulch, and tack immediately to establish proper vegetation. 9. All erosion and sediment control practices will be inspected weekly and after each rainfall event. Needed repairs will be made immediately. 10. After the entire covered area is stabilized, all temporary measures will be removed and permanent vegetative repairs to be completed. 7. Vegetation Plan: 1. After complete stabilization of the entire covered area, top cover soils will be roughened by making 1 "-2" deep grooves perpendicular to the slope. Westpor! Fire Station June 2006 ,Jun 15 06 04:27p Rae Pc 19102512208 p.7 2. Spread lime (agricultural limestone) evenly over the area at a rate of 1.5 tons/acre; spread 10-10-10 fertilizer at a rate of 1000 lb/acre and incorporate into the top 6" of soil. 3. Loosen surface prior to applying seed. 4. Broadcast seed at recommended rates. 5. Rake seed into the soil and lightly pack to establish good contact. 6. Mulch with 4000 lb/acre grain straw or equivalent and anchor by weighted farm disc set nearly straight or other mulch anchoring tool. 7. Mow as needed and refertilize in late winter or early spring by topdressing with 10- 10-10 fertilizer. 8. Graded surfaces shall not be. exposed without grass coverage for more than 15 days. 1f grades are not complete and exposure is more than 15 days, temporary seed with rye grain at 50 Nacre. 8. Maintenance Plan: 1. Contractor shall maintain all sedimentation and erosion control devices during construction. 2. All devices shall be checked after each rain event and weekly. Repairs shall be made immediately when detected. 3. Any deficiencies shall be brought to the immediate attention of the Engineer. Seed Types and Application Rate 1 Schedule Temporaryy Seedinq Grass_jype Amount / 1000 SF Time of Seeding Initial Rye Grain 1-2 Ibs Nov. —Jan. 25 Ibs 10-10-10 Brown Top Millet 1-2 Ibs June— Aug. 25 Ibs 10-10-10 Permanent Seeding Grass Type Amount Time of Initial Fertilization 1 Fertilization 1 Fertilization ! /1000 Seeding 1000 sf 1000 sf 1000 sf sf Maintenance Maintenance maintenance Burmuda, 1-2 Ibs Apr. — 25 Ibs March -April Each 4-8 Aug. -Sept. Common June 10-10-10 12lbs Weeks LL2bs Westport Fire Station June 2006 Jun 15 06 04:28p Rae Pc 19102512208 P.8 10-10-10 1-2 Ibs N. 10-10-10 Fescue, Tall 5-7 Ibs Sept. — 25 Ibs Feb -March May & Dec. Sept. -Oct. (Kentucky Oct. 10-10-10 12 Ibs '/2 to 1 Ib. n. 12 Ibs 31) Feb. — 10-10-10 10-10-10 Oct. Sericea 1-2 Ibs March — 25 Ibs Feb -March '/2 to 1 Ib. N. NIA Lespedeza Apr. 10-10-10 SIO es ** Bermuda Sod Where shown on the plans END OF PLAN Westport Fire Station Junc 2006 Jun 15 06 04:213p Rae Pc RIGHTANGLE ENGINEERING. P.C. 212 Princess Street - Wilmington, North Carolina 28401 • Tel. (910) 251-8544 - Fax (910) 251-2208 - email: raepc@aol.com 19102512208 p.1 ACSIMILE TRANSMITTAL SHEET TO: FRO L2 en r Lf QT 24 L4l�� c, CONTANY: DATE: _L� FAX NUMBER: TOTAL N . OF P $ INCLUDING COVER ':5� G -.moo S� RE: SENDER'S REFERENCE NUMBER - NOTES/COMMENTS; / 6 jun,15 06 04;27p Rae Pc 19102512208 p.4 DESIGN NARRATIVE FOR HIGH DENSITY PROJECT FOR TOWN OF LELAND WESTPORT FIRE STATION BRUNSWICK COUNTY, N.C. June 2006 TABLE OF CONTENTS 1.0 PROJECT DESCRIPTION 2.0 SITE DESCRIPTION 3.0 ADJACENT PROPERTY 4.0 - DRAINAGE CONSIDERATIONS 5.0 EROSION CONTROL CONSIDERATIONS 6.0 CONSTRUCTION SCHEDULE 7.0 VEGETATION PLAN 8,0 MAINTENANCE PLAN APPENDIX WET DETENTION BASIN CALCULATIONS IMPERVIOUS AREA TOTALS RUNOFF CALCULATIONS PIPE CALCULATIONS Westport Fire Station June 2006 i TRANSMISSION VERIFICATION REPORT TIME 07/16/2009 14:49 NAME NCDENR FAX 9103502018 TEL 9107967215 DATE,TIME FAX NO./NAME 07/16 14:48 DURATION 92512208 PAGE(S) 0 0:00:45 RESULT 003 MODE STANDARD ECM State of North Carolina Departmcnt of Environmeot and Natural Resources Wilmington Regional Office Beverly Eaves Perdue, Governor FAX COVER SHEET Dee Freeman, Secretary Date: r% �/d, No. Pages (e.xcl. cover): -r To: I Z— �� ��f f "� From: Jo C,wsmex Co: •" Phone: (9LO) 796-7336 Fax: _ /'- a g — Fax: (910) 350-M 12? Cardinal Drive Extensian, Wilmington, NC 79405 • (910) 796-7215 0 An Equal OPPO Vdty Affirmative Action Employcr State of North Carolina Department of Environment and Natural Resources z Wilmington Regional Office Beverly Eaves Perdue, Governor FAX COVER SHEET Dee Freeman, Secretary Date: -% —/ � 'd No. Pages (excl. cover): To: ��! A�� G PO�� `� From: Jo Casmer Co: 14e e�,-' Af f G� Phone: (910) 796-7336 Fax: :Zs/ 2 Zo Fax: (910) 350-2004 Re: A�5 T Qom '- �i`l E- �* 'j Co.per o Gar74 17'7 127 Cardinal Drive Extension, Wilmington, NC 28405 • (910) 796-7215 • An Equal Opportunity Affirmative Action Employer State Stormwater Management Systems Permit No. SW8 060808 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 Bill Farris and Town of Leland Westport Fire Station Brunswick County FOR THE construction, operation and maintenance of a wet detention pond 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 August 11, 2016, and shall be subject to the following specified conditions and limitations: I. DESIGN STANDARDS 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 in Section 1.6 on page 3 of this permit. The stormwater control, has been designed to handle the runoff from 31,850 square feet of impervious area. 3. The tract will be limited to the amount of built -upon area indicated on page 3 of this permit, and per approved plans. There is no allotment for future built -upon area at the site. 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 the approved plans. 5. The runoff from all built -upon area within the permitted drainage area of this project must be directed into the permitted stormwater control system. Page 2 of 7 State Stormwater Management Systems Permit No. SW8 060808 6. The following design criteria have been provided in the wet detention pond and must be maintained at design conditions: a. Drainage Area, acres: 1.65 Onsite, ft : 71,874 Offsite, ft2: None b. Total Impervious Surfpces, ft2: 31,850 OS Buildings, ft : 9,850 OS Streets, 112. 8,000 OS Parking, ftl: 12,000 OS Sidewalks, ft2: 2,000 C. Design Storm, inches: 1.0 d. Pond Depth, feet: 5 e. TSS removal efficiency: 90% f. Permanent Pool Elevation, FMSL: 15.0 g. Permanent Pool Surface Area, ft2: 3,000 h. Permitted Storage Volume, ft3: 3,078 i. Temporary Storage Elevation, FMSL: 15.9 j. Controlling Orifice: 0.75"0 pipe k. Permitted Forebay Volume, ft3: 2,000 I. Receiving Stream/River Basin: UT Brunswick River 1 Cape Fear M. Stream Index Number: 18-77 n. Classification of Water Body: "SC" II. SCHEDULE OF COMPLIANCE 1. 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. 2. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 3. 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 its entirety and maintenance must occur at the scheduled intervals including, but not limited to: a. Semiannual scheduled inspections (every 6 months). b. Sediment removal. C. Mowin.9 and revegetation of slopes and the vegetated filter. d. Immediate repair of eroded areas. e. Maintenance of all slopes in accordance with approved plans and specifications. f. Debris removal and unclogging of outlet structure, orifice device, flow spreader, catch basins and piping. g. Access to the outlet structure must be available at all times. Page 3 of 7 State Stormwater Management Systems Permit No. SW8 060808 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. Decorative spray fountains will be allowed in the stormwater treatment system, subject to the following criteria: a. The fountain must draw its water from less than 2' below the permanent pool surface. b. Separated units, where the nozzle, pump and intake are connected by tubing, may be used only if they draw water from the surface in the deepest part of the pond. c. The falling water from the fountain must be centered in the pond, away from the shoreline. d. The maximum horsepower for a fountain in this pond is 1/8 horsepower. 6. The facilities shall be constructed as shown on the approved plans. 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. 7. 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. A modification may be required for those deviations. 8. 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, and prior to occupancy of the facility. 9. Access to the stormwater facilities shall be maintained via appropriate easements at all times. 10. 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 any item shown on the approved plans, including the stormwater management measures, built -upon area, details, etc. b. Project name change. C. Transfer of ownership. d. Redesign or addition to the approved amount of built -upon area or to the drainage area. e. Further subdivision, acquisition, lease 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. f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. 11. The permittee shall submit final site layout and grading plans for any permitted future areas shown on the approved plans, prior to construction. 12. 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. Page 4 of 7 State Stormwater Management Systems Permit No. SW8 060808 13. 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. III. GENERAL CONDITIONS 1. This permit is not transferable except after notice to and approval by the Director. In the event of a change of ownership, or a name change, the permittee must submit a formal permit transfer request to the Division of Water Quality, accompanied by a completed name/ownership change form, 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. The permittee is responsible for compliance with all permit conditions until such time as the Division approves the transfer request. 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 143-215.6A to 143-215.6C. 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) having 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 permittee grants DENR Staff permission to enter the property during normal business hours 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. 7. Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual. 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 any name, ownership or mailing address changes within 30 days. Permit issued this the 11th day of August 2006. NORTH OLINA ENVIRONMENTAL MANAGEMENT COMMISSION "0 for Alan W. Klimek, P.E., Director Division of Water Quality By Authority of the Environmental Management Commission Page 5 of 7 State Stormwater Management Systems Permit No. SW8 060808 Westport Fire Station Stormwater Permit No. SW8 060808 Page 1 of 2 Brunswick 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 included in the Certification. Noted deviations from approved plans and specification: Signature Registration Number Date SEAL Page 6of7 State Stormwater Management Systems Permit No. SW8 060808 Page 2 of 2 Certification Requirements: 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. 13. All required design depths are provided. 14. All required parts of the system are provided, such as a vegetated shelf, and a forebay. 15. The required system dimensions are provided per the approved plans. cc: NCDENR-DWQ Regional Office Delaney Aycock, Brunswick County Building Inspections Jeff Phillips, Brunswick County Engineering Page 7 of 7