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HomeMy WebLinkAboutSW8040130_HISTORICAL FILE_20040507STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW8 o H o t3 D DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS ® HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE D04 0c? 01 YYYYMMDD �pFWATFR Michael F. Easley, Governor QG William G. Ross Jr.. Secretary y North Carolina Department of Environment and Natural Resources OY Alan W. Klimek, P.E.,Director Division of Water Quality Coleen H. Sullins, Deputy Director Division of Water Quality May 7, 2004 Mr. Gene Walden, Assistant Vice President Pike Electric, Inc. PO Box 868 W. Airy, NC 27030 Subject: Stormwater Permit No. SW8 040130 Pike Electric High Density Project Brunswick County Dear Mr. Walden: The Wilmington Regional Office received a complete Stormwater Management Permit Application for Pike Electric on May 7, 2004. 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 040130 dated May 7, 2004, for the construction of the subject project. This permit shall be effective from the date of issuance until May 7, 2014, and shall be subject to the conditions and limitations as specified therein. Please pay special attention to the Operation and Maintenance requirements in this permit. Failure to establish an adequate system for operation and maintenance of the stormwater management system will result in future compliance problems. if any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing upon written request within thirty (30) days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 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 this permit shall be final and binding. . If you have any questions, or need additional information concerning this matter, please contact Linda Lewis, or me at (910) 395-3900. Sincerely, Rick Shiver Water Quality Regional Supervisor RSS/arl: S:\WQS\STORMWAT\PERMIT\040130.may04 cc: David A. Hollis, P.E., East Coast Engineering Delaney Aycock, Brunswick County Building Inspections Linda Lewis Wilmington Regional Office Central Files va N. C. Division of Water Quality 127 Cardinal Drive Extension (910) 395-3900 Customer Service � Wilmington Regional Office Wilmington, NC 28405 (910) 350-2004 Fax 1 800 623-7748 NCDENR s IVIdIIdYt!IIIVIII oyslems Permit No. SW8 040130 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 Gene Walden, Pike Electric, Inc. Pike Electric 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 May 7, 2014, 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 121,188 square feet of impervious area. This pond must be operated with a vegetated filter. 3. The tract will be limited to the amount of built -upon area indicated on page 3 of this permit, and per approved plans. 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. A permit modification must be submitted and approved prior to the construction of additional built -upon area from outside of the approved drainage area. 2 State Stormwater Management Systems Permit No. SW8 040130 DIVISION OF WATER QUALITY PROJECT DESIGN DATA SHEET Project Name: Pike Electric Permit Number: SW8 040130 Location: Brunswick County Applicant: Mr. Gene Walden, Assistant Vice President Mailing Address: Pike Electric, Inc. PO Box 868 Mt. Airy, NC 27030 Application Date: May 7, 2004 Receiving Stream/River Basin: Doe Creek / Lumber Stream Index Number: LBR59 15-25-1-13 Classification of Water Body: "C Sw HQW" Drainage Area, acres: 3.96 Onsite, ft : 172,352 Offsite, ftz: 0 Total Impervious Surfaces, ftZ: 121,188 Pond Design Depth, feet: 5.0 TSS removal efficiency: 90% (no filter is required) Permanent Pool Elevation, FMSL: 31.0 Surface Area at Permanent Pool, ft2: 8,655 Permitted Storage Volume, ft3: 10,994 Temporary Storage Elevation, FMSL: 32.17 Controlling Orifice: 1.5"0 pipe (drawdown in 2-5 days) Permitted Forebay Volume, ft3: 4,505 3 wl v anayrtn1ent oystems Permit No. SW8 940130 II. SCHEDULE OF COMPLIANCE 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. 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 the fountain's pump is based on the permanent pool volume. The maximum pump power 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. Upocom pletion 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. 3. 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. 4 State Stormwater Management Systems Permit No. SW8 040130 At least 30 days prior to the sale or lease of any portion of the property, the permittee shall notify DWQ and provide the name, mailing address and phone number of the purchaser or leasee. An access/maintenance easement to the stormwater facilities shall be granted in favor of the permittee if access to the stormwater facilities will be restricted by the sale or lease of any portion of the property. 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. G. Transfer of ownership. d. Redesign or addition to the approved amount of built -upon area or to the drainage area. e. 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. 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. If the proposed BUA exceeds the amount permitted under this permit, a modification to the permit must be submitted and approved 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. 13. The permittee must maintain compliance with the proposed built -upon area and ensure that the runoff from all the built -upon is directed into the permitted system. 14. 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. 15. The permittee must maintain the current permitted drainage area. No additional runoff from outside of the permitted drainage area boundary may enter the permitted stormwater facilities without first applying for and receiving a permit modification. .. 1n01 10UM ncni oyb1C111b Permit No. SW8 040130 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) 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 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 7th day of May, 2004. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION Sian vv. Klimek, P.E., Director Division of Water Quality By Authority of the Environmental Management Commission State Stormwater Management Systems Permit No. SW8 040130 Pike Electric Stormwater Permit No. SW8 040130 Brunswick Countv Designer's Certification 1, , as a duly registered in the State of North Carolina, having been authorized to observe (periodically/ weekly/ full time) the construction of the project, (Hroject) 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 Certification Requirements: 7 I- gnu uycl I lcln VYOLCJIW Permit No. SW8 040130 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. 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 9 1 .t OFFICE USE ONLY Date Received Fec Paid Permit Number — Z,Z- U •;� ZO ..0 5 of Z O eel o/ State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM Thisform may be pho[ocopied for use as an original I. GENERAL INFORMATION 1. Applicants name (specify the name of the corporation, individual, etc. who owns the project): Pike Electric, Inc. 2. Print Owner/Signing Official's name and title (person legally responsible for facility and compliance): Mr. Gene Walden, Assistant Vice President 3. Mailing Address for person listed in item 2 above: P.O. Box 868 City: Mount Airy State: NC Zip: 27030 Telephone Number: (336) 719-4294 I 4. Project Name (subdivision, facility; or establishment name - should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): Pike Electric i 5. Location of Project (street address): 820 Ocean Highway W. (US 17) City: Shallorte County: Brunswick 6. Directions to project (from nearest major intersection): From intersection of NC 211 and US 17, travel south on US 17. Site is approximately 1.75 miles south of NC 211, west of US 17. Turn right into site off US 17 across Brunswick Electric Membership Corporation. 7. Latitude: 3410.44 Longitude: 78018.11' of project 8. Contact person who can answer questions about the project: Name: Alan C. Lewis. East Coast Enguteering_ Telephone Number: (910) 754-8029 it. PERMIT INFORMATION: I. Specify whether project is (check one): X New Renewal Modification 1' 2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the existing permit number and its issue date (if known) 3. Specify the type of project (check one): _Low Density X High Density Redevelop General Permit Other 4. Additional Project Requirements (check applicable blanks): CAMA Major X Sedimentation/Erosion Control 404/401 Permit NPDES Stormwater Information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748. Ill. 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 . Stormwater will be directed to a proposed on -site detention pond for treatment 2. Stormwater runoff from this project drains to the Lumber River basin. 3. Total Project Area: 7.28 acres 4. Project Built Upon Area: 5. How many drainage areas does the project have? 1 6. 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. Basin Information Drainage Area I Drainage Area 2 Receiving Stream Name TribuN y to Doe Creek Receiving Stream Class C SW HQW Drainage Area 172,352 SF or 3.96 AC Existing Impervious* Area 6,353 SF or 0.14 AC Proposed Impervious*Area 9-iYk;836-SF OR C IZI � $$ % Impervious* Area (total) 70% Impervious* Surface Area Drainage Area I Drainage Area 2 On -site Buildings 4,360 SF or 0.1 AC On -site Streets 0 On -site Parking 116,828 SF or 2.08 AC On -site Sidewalks 0 Other on -site 0 Off -site 0 Total: 121,188 SF or 2.78 AC I Total: .,,v," . "-. _• . " u�i•,,�u .' ...c ouu, upon nrea urc.ua.ng, out not nmuea to, ouuatngs, roaas, parking areas, sidewalks, gravel areas. etc. 11, V11 r1 ) I %i l.t 7. How was the off -site impervious area listed above derived? NA IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS The following italicized deed 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. 1. The following covenants are intended to ensure ongoing compliance with state stormwater management permit number as issued by the Division of Water Quality. These covenants may not be changed or deleted without the consent of the State. 2. No more than square feet of any lot shall be covered b6 structures or impervious materials. Impervious materials include asphalt, gravel, concrete, brick, stone, slate or similar material but do not include wood decking or the water surface of swimming pools. 3. Swales shall not be filled in, piped, or altered except as necessary to provide driveway crossings. 4. Built -upon area in excess of the permitted_ amount requires a state stormwater management permit modification prior to construction. 5. Allpermitted runofffrom outparcels orJuture development shall be directed into the permitted stormwater control system. These connections to the stormwater control system shall be performed in a manner that maintains the integrity and performance of the system as permitted. By your signature below, you certify that the recorded deed restrictions and protective covenants for this project shall include all the applicable items required above, 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 State, and that they will be recorded prior to the sale of any lot. V. SUPPLEMENT FORMS The applicable slate stormwater management permit supplement form(s) listed below must be submitted for each BMP specified for this project. Contact the Stormwater and General Permits Unit at (919) 733-5083 for the status and availability of these forms. Form SWU-102 Wet Detention Basin Supplement Form SWU-103 Infiltration Basin Supplement Form SWU-104 Low Density Supplement Form SWU-105 Curb Outlet System Supplement Form SWU-106 Off -Site System Supplement Form SWU-107 Underground Infiltration Trench Supplement Form SWU-108 Neuse River Basin Supplement Form SWU-109 Innovative Best Management Practice Supplement Fnrm SWI I-101 Vrreinn 199 Nn e I nfa VI. SUBM I I AL KEQUIKEMEN'I S 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 Regional Office. I. Please indicate that you have provided the following required information by initialing in the space provided next to each item. • Original and one copy of the Stormwater Management Permit Application Form • One copy of the applicable Supplement Form(s) for each BM P • Permit application processing fee of $420 (payable to NCDENR) • Detailed narrative description of stormwater treatment/management • Two copies of plans and specifications, including: - 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) VI AGENT AUTHORIZATION If you wish to designate authority to another individual or firm so that they may provide information on your behalf, please complete this section. Designated agent (individual or firm): East Coast Fnginecring Company, P.A. Mailing'Address: Post Office Box 2,169 City: Phone: (910) 754-8029 VIII. APPLICANT'S CERTIFICATION State: NC Zip: 28459 Fax: (910) 754-8049 1, (print or type name ofperson listed in General Information, item 2)Mr. Gene N-'xlden 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 will be recorded, and that the proposed project complies with the requirements of 15A NCAC 2H A000. Date: Form SWU-101 Version3.99 Page of Permit No. 5WO'0 0/ 3y (to be provided by DWQ) State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM WET DETENTION BASIN SUPPLEMENT This form may be photocopied for use as an original DWO Stormwater Management Plan Review: A complete stormwater management plan submittal includes an application form, a wet detention basin supplement for each basin, design calculations, and plans and specifications showing all basin and outlet structure details. I. PROJECT INFORMATION Project Name: Pike Electric Contact Person: Mr. Gene Walden Phone Number: (336) 719-4294 For projects with multiple basins, specify which basin this worksheet applies to: elevations Basin Bottom Elevation 26.0 ft. (floor of the basin) Permanent Pool Elevation 31.0 ft. (elevation of the orifice) Temporary Pool Elevation 32.17 ft. (elevation of the discharge structure overflow) areas Permanent Pool Surface Area 8,655 sq. ft. (water surface area at the orifice elevation) Drainage Area 3.96 ac. (on -site and off -site drainage to the basin) Impervious Area 2.78 ac. (on -site and off -site drainage to the basin) j volumes ' Permanent Pool Volume 22.046 cu. ft. (combined volume of main basin and forebay) Temporary Pool Volume 10,994 cu. ft. (volume detained above the permanent pool) Forebay Volume 4,505 cu. ft. (approximately 20% of total volume) Other parameters SA/DAi 0.0502 (surface area to drainage area ratio from DWQ table) Diameter of Orifice 1.5 in. (2 to 5 day temporary pool draw -down required) Design Rainfall 1 in. Design TSS Removal 2 90 % (minimum 85% required) Form SWU-102 Rev 3.99 Page I of Footnotes: I When using the Division SA/DA tables, the correct SA/DA ratio for permanent pool sizing should be computed based upon the actual impervious % and permanent pool depth. Linear interpolation should be employed to determine the correct value for non standard table entries. 2 In the 20 coastal counties, the requirement for a vegetative filter may be waived if the wet detention basin is designed to provide 90% TSS removal. The NCDENR BMP manual provides design tables for both 85% TSS removal and 90% TSS removal. H. REQUIRED ITEMS CHECKLIST 'The following checklist outlines design requirements per the Stormwater Best Management Practices Manual (N.C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code Section: 15 A NCAC 2H .1008. Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached. If the applicant has designated an agent in the Stormwater Management Permit Application Form, the agent may initial below. If a requirement has not been met, attach justification. AI/q als a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet). b. The forebay volume is approximately equal to 20°/u of the basin volume. c. The temporary pool controls runoff from the design storm event. d. The temporary pool draws down in 2 to 5 days. e. If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow calculations) f. The basin length to width ratio is greater than 3:1. g. The basin side slopes above the permanent pool are no steeper than 3:1. It. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail). Vegetative cover above the permanent pool elevation is specified. A trash rack or similar device is provided for both the overflow and orifice. k. A recorded drainage easement is provided for each basin including access to nearest right-of- way. I. If the basin is used for sediment and erosion control during construction, clean out of the basin is specified prior to use as a wet detention basin. m. A mechanism is specified which will drain the basin for maintenance or an emergency. III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the vegetated filter if one is provided. This system (check one) 0 does.does not incorporate a vegetated filter at the outlet. This system (check one) 0 does$ does not incorporate pretreatment other than a forebay. Form S W U-102 Rev 3.99 Page 2 of 4 Maintenance activities shall be performed as follows: 1. After every significant runoff producing rainfall event and at least monthly: a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation, vegetated cover, and general condition. b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within 2 to 5 days as designed. 2. Repair eroded areas immediately, re -seed as necessary to maintain good vegetative cover, mow vegetative cover to maintain a maximum height of six inches, and remove trash as needed. 3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.) quarterly to maintain proper functioning. 4. Remove accumulated sediment 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 3.75 feet in the main pond, the sediment shall be removed. When the permanent pool depth reads 2.25 feet in the forebay, the sediment shall be removed. BASIN DIAGRAM ill in the blanks) Permanent Pool Elevation 31.0 Sediment Re oval El. 28.75 Sediment Removal Elevation 27.25 + 75% Bottom Ele anon 28 -------------------------------------- Bottom Elevation 26 25%/ FOREBAY MAIN POND 5. Remove 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. If 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. Form SWU-102 Rev 3.99 Page 3 of 7. All components of the wet detention basin system shall be maintained in good working order. I acknowledge and agree by my signature below that I am responsible for the performance of the seven 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. Print Name: Mr Gene Walden Title: Assistant Vice President Address: Pike Electic Inc P.O. Box 868, Mt. Airy, NC 27030 Phone: (336)719-4294 Signature: Date: 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. I, Sabrina B. Babson , a Notary Public for the State of North Carolina County of Brunswick , do hereby certify that personally appeared before me this day of ( ok" and acknowledge the due execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal, SEAL My commission expires October 27, 2008 Form S W U-102 Rev 3.99 Page 4 of 4 r State Stormwater Management Systems Permit No. SW8 040130 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 Gene Walden, Pike Electric, Inc. Pike Electric 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 May 7, 2014, 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 on page 3 of this permit, the Project Data Sheet. The stormwater control has been designed to handle the runoff from 121,188 square feet of impervious area. This pond must be operated with a vegetated filter. The tract will be limited to the amount of built -upon area indicated on page 3 of this permit, and per approved plans. 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. A permit modification must be submitted and approved prior to the construction of additional built -upon area from outside of the approved drainage area. 2 State Stormwater Management Systems Permit No. SW8 040130 DIVISION OF WATER QUALITY PROJECT DESIGN DATA SHEET Project Name: Pike Electric Permit Number: SW8 040130 Location: Brunswick County Applicant: Mr. Gene Walden, Assistant Vice President Mailing Address: Pike Electric, Inc. PO Box 868 Mt. Airy, NC 27030 Application Date: May 7, 2004 Receiving Stream/River Basin: Doe Creek / Lumber Stream Index Number: LBR59 15-25-1-13 Classification of Water Body: "C Sw HQW" Drainage Area, 9cres: 3.96 Onsite, ft : 172,352 Offsite, ft2: 0 Total Impervious Surfaces, ftz: 121,188 Pond Design Depth, feet: 5:0 TSS removal efficiency: 90% (no filter is required) Permanent Pool Elevation, FMSL: 31.0 Surface Area at Permanent Pool, ft2: 8,655 Permitted Storage Volume, ft3: 10,994 Temporary Storage Elevation, FMSL: 32.17 Controlling Orifice: 1.5"0 pipe (drawdown in 2-5 days) Permitted Forebay Volume, ft3: 4,505 3 r' State Stormwater Management Systems Permit No. SW8 040130 II. SCHEDULE OF COMPLIANCE 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. Mowing 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. 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 the fountain's pump is based on the permanent pool volume. The maximum pump power 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. 4 State Stormwater Management Systems Permit No. SW8 040130 9. At least 30 days prior to the sale or lease of any portion of the property, the permittee shall notify DWQ and provide the name, mailing address and phone number of the purchaser or leasee. An access/maintenance easement to the stormwater facilities shall be granted in favor of the permittee if access to the stormwater facilities will be restricted by the sale or lease of any portion of the property. 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, 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. If the proposed BUA exceeds the amount permitted under this permit, a modification to the permit must be submitted and approved 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. 13. The permittee must maintain compliance with the proposed built -upon area and ensure that the runoff from all the built -upon is directed into the permitted system. 14. 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. 15. The permittee must maintain the current permitted drainage area. No additional runoff from outside of the permitted drainage area boundary may enter the permitted stormwater facilities without first applying for and receiving a permit modification. State Stormwater Management Systems Permit No. SW8 040130 III. GENERAL CONDITIONS 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) 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 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 7th day of May, 2004. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION .,U„ ... , ,,, Division of Water Quality By Authority of the Environmental Management Commission 6 BRUNSWICK COUNTY STORM WATER PERMIT (Form SW-010) Development Pike. FlPctric Owner or Contact Person Pike Electric Inc Address P.O. Box 868 Date Issued: 1 / U This permit is provided under tine Bru swick County Storm Water Ordinance and covers construction activities as submitted on the Storm Water Management Plan and accompanying drawings, calculations and other documentation for the period ending / 114 /U,; (1 year from date issued). Inspection Requirement Each structural component (Best Management Practice or BMP) constructed under this permit requires a final, as -built inspection prior to the use of the property as described in the Storm Water Management Plan. You must call the Brunswick County Storm Water Administrator's office to schedule that inspection. Failure to arrange for the required inspection prior to beginning the intended use of the property shall void this permit. �4A-5 /<li[_ Fog A No Modifications There shall be no modifications to the drainage patterns, structures, operation and maintenance, or other features approved in the Storm Water Management Plan without the prior approval of the Storm Water Administrator. Additional Requirements Additional requirements. conditions, variances, and approvals are included as part of this permit as attached and here referenced: Please keep a copy of this Storm Water Permit at your site. This permit does not supersede any other permit requirements or approvals required for you development. Your cooperation is appreciated. ECFIXIEFJ Sincerely, AUG 13 2013 �Zr.✓� % (�2� BY: — Brunswick County Storm Water Administrator or Representative Official Use Only: Storm Water Permit No. 2—Oo4 - r)On I _� 5 Date DETENTION POND ANALYSIS FILE NAME: G:\DATA\WPDATA\WQS\POND\040130.WK1 PROJECT#: SW8 040130 REVIEWER: L. Lewis PROJECT NAME: Pike Electric DATE: 06-May-04 Receiving Stream: Doe Creek Class: C Sw HQW Drainage Basin: Lumber Index No. LBR59 15-25-1-13 Site Area 7.28 acres Drainage Area square feet Area = 3.96 acres IMPERVIOUS AREAS Rational C Buildings 4360.00 square feet Parking 116828.00 square feet square feet square feet square feet square feet TOTAL 121188_square feet Rational Cc= 0.06 SURFACE AREA CALCULATION % IMPERVIOUS 70.31% Des. Depth 5 TSS: 90 SA/DA Ratio 5.02% Req. SA 8656 sf Prov. SA sf VOLUME CALCULATION place a "'I" in the box if Rational is used Rational ?* Des. Storm 1.00 inches Rv= 0.68 Bottom 26 msl Perm. Pool msl Design Pool 32.17 msl Design SA 10139 sf Req. Volume 4-1,980t cf Prov. Volume ORIFICE CALCULATION Avg. Head = Flow Q2, cfs Flow Q5, cfs No. of Orifices Diameter, inches Drawdown = Z9T;T4-T-'yj Perm. Pool Volume= 22046 Req. Forebay Volume= 4409.2 Provided Volume= 4505.00 0 1 Percent= F-T. '11-7::::20.4% SA@ Elevation= Q2 Area = Q5 Area = Orifice Area Q= COMMENTS Surface Area , Volume and Orifice are within Design Guidelines in 2.28 sq. in. 0.91 sq. in. 1.77 sq. in. 0.044 cfs x F777 V East Coast Engineering Company, P.A. 4918 Main Street Fax: 910.754.8049 Consulting Engineers Post 01fice Box2469 Office: 910,754.8029 Shallolle, NC 28459 tWuy 6. 2004 Ms. Linda Lewis WC tter Qualiq� Section NC Department of Environment and Natural Resources 127 Cardinal Drive Extension Wilinington, North Carolina 28 405-38=45 Subject: Pike Electric, SW8 040130 Brunswick County Plan Revision Dear Ms. Lewis: Here is the revised plan with the wetland table reinserted. Please replace this plan with the one submitted on Alas 3, 2004, If you have any question or require any additional information, please contact our office. Sincerely, Elizabeth .A4. Nelson, El Enclosures copy: rile: 0571 (Pike Electic) Y East Coast 0 3 2004 Engineering Company, P.A. LIMIAY 4918 Ma' Street Fax: 910.754.8049 Consulting Engineers - ffirt@ x 2469 Office: 910.754.8029 Shallotte, 28459 UUMS lhl1 Ms. Linda Lewis Water Quality Section NC Department of Environment and Natural Resources 127 Cardinal Drive Extension Wilmington, North Carolina 28405-3845 Subject: Pike Electric, SW8 040130 Brunswick County Additional Information Dear Ms. Lewis: In response to several emails received from your office, enclosed is the additional information you requested. 1. Land Management Group, Inc. of Wilmington, N.C, has delineated the wetlands within the project boundary. Tompkins Land Surveying surveyed the wetlands as delineated. The wedand limit is shown on the enclosed revised Sheet 2 of 2 of the plans. 2. The SA/DA value has been modified. This has affected the pond calculations and the permanent pool dimensions. The revised pond calculations are enclosed, and the permanent pool dimensions have been revised on Sheet 2 of 2 of the plans. Sheet 1 of 4 of the Wet Detention Basin Supplement has been revised to reflect the modified numbers, and is enclosed. 3. The sediment removal elevation on page 3 of 4 of the Wet Detention Basin Supplement has been revised, and is enclosed. If you have any question or require any additional information, please contact our office. Sincerely, ,%% 6 4&Ot •y,//� �% /l-!f ZIW44 Elizabeth M. Nelson, EI Enclosures copy: Mr. Gene Walden File: 0571 (Pike Electic) Pike Electric Revised Calculations Hydrologic and Hydraulic Calculations May2004 RECEIVED MAY 0 3 2004 nwQ PROJ # SNYO 4c)I 30 Prepared by: 40 East Coast Engineering Company, P.A. Consulting Engineers Shallotte, North Carolina 28459 Post Office Box 2469 4918 Main Street Office: 910.754.8029 r Pike Electric East Coast Engineering Company, PA Forebay Calculations EMN TOTAL POND VOLUME at PERMANENT POOL BEFORE FOREBAY DESIGNED (FOR ESTIMATION PURPOSES) 5' depth, 6:1 slope for 10', then 3:1 slope ELEVATION FT MSL SURFACE AREA SF INCREMENTAL VOLUME CF ACCUMULATIVE VOLUME CF 26 1694 2129 2129 27 2564 3035 5164 28 3505 4005 9169 29 4505 5401 14570 30 6297 7476 22046 31 8655 20% OF PERMANENT POOL VOLUME = 4409.100 FOREBAY VOLUME at PERMANENT POOL 2:1 slope ELEVATION FT MSL SURFACE AREA SF INCREMENTAL VOLUME CF ACCUMULATIVE VOLUME CF 28 1071 1207 1207 29 1342 1492 2699 30 1642 1806 4505 31 1970 RECEI�IED MAY 0 3 2004 DWQ PROJ # Revision 5/3/2004 Pike Electric Pond Calculations East Coast Engineering Company, PA EMN Drainage Area (DA) = 172,352 sf or 3.96 ac Impervious Area IA = 121188 sf 2.78 ac Percent Impervious 1 IA/DA 0.703 or 70.3% SAIDA; 90% TSS no vegetative filter re 'd Pond Depth = 5 0.0502 or 5.02% Min. re d SA @ PP SA/DA x DA 8,652.07 sf Min. req'd storage volume Rv = 0.05 + (0.009 x 1) = 0.683 Volume = 1 in x 1 ft / 12 in x Rv x DA 9,807.23 cf SA provided @ PP Pond Elev = 31 53.5' x 165.5' w/ 15.25' radii 8,655 sf Enough SAprovided? YES Min. storage depth red Min. storage volume / SA provided @ PP 1.13 ft Storage depth set at 1.17 ft Elevation oftemporary pool 32.17 ft SA @ Temporarypool 10,139 sf Storage volume provided Average of SA @ temp. pool & PP x storage depth 10,994.49 cf n..01-4 ai-in� Q - 2 day drawdown time Min. re 'd storage volume x 1 in. / 2 days) 0.057 cfs Q - 5 day drawdown time Min. re 'd storage volume x 1 in. / 5 days) 0.023 cfs Height h 1/2 Min. Storage Depth) 0.6 ft CO Constant 0.6 Required Area for 0-2 A = Q/(C x (2gh)'122.22 in Required Area for Q-5 A = Q/ C x 2 h ' 2 0.89 in Orifice Chosen 1.50 in CHECK Area Provided by Orifice Chosen A = nrz 1.77 in Area Provided by Orifice Chosen 0.012 The Average head h = 1/2(Temporary Pool depth - 1/2 orifice diameter 6.645 in The Average head 0.554 ft Q provided Q = Ca(2 h)112 0.044 cfs OK RECEIVED MAY 0 3 2004 DWQ PROJ # Revision Date 5/3/2004 PP6L 3 aF 3 RE: Pike Electric S\V8 040130 Subject: RE: Pike Electric SW8 040130 From: "Elizabeth Nelson" <enelson@ececpa.com> Date: Tue, 30 Mar 2004 13:21:02 -0500 To: "Linda Lewis" <Linda.Lewis@ncmai1.net> CC: "Alan C. Lewis" <alewis@ececpa.com> Linda: We have noticed with our last couple of applications, that your office has been asking for more than the owner's determination. I will contact the owner to determine their basis, and get back with you. Elizabeth -----Original Message ----- From: Linda Lewis [ mai Ito: Linda. Lewis @ncmail.net3 Sent: Tuesday, March30, 2004 12:42 PM To: Elizabeth Nelson Subject: Pike Electric SW8 040130 Elizabeth My only concern with this application is the wetlands statement. Is the owner qualified to make the determination that no wetlands exist, or does he have some documentation? Has anyone from DWQ or the Corps or a private firm done a delineation? The call on the presence or absence of wetlands should be made only by a person with the right background and experience to know what is and isn't a wetland. This project's proximity to "Sam Varnams Branch" raises a concern for the potential presence of wetlands. Linda r 1 of 1 3/30/2004 2:47 PM Re: 040130 Subject: Re: 040130 From: Linda Lewis <Linda.Lewis@ncmail.net> Date: Tue, 30 Mar 2004 14:47:14 -0500 To: Elizabeth Nelson <enelson@ececpa.com> Elizabeth: I do need revised calculations since I can't approve a design that is deficient, albeit a small amount. You don't need to move the contours, but please revise the permanent pool dimensions so that sufficient surface area will be provided. Linda Elizabeth Nelson wrote: I Linda: I have looked at the calculations, and if I round to the nearest loth as you request, my permanent pool contour will need to be offset by 0.25 feet to gain the 100 square feet, which will in turn offset each proposed contour 0.25 feet. Do you need revised calculations and a revised grading plan to proceed? Elizabeth -----Original Message ----- From: Linda Lewis [ mailto: Linda. Lewis@ncmail.net] Sent: Tuesday, March 30, 2004 12:52 PM To: Elizabeth Nelson Subject: 040130 Elizabeth: One more thing- the percent impervious comes out at 70.3%. You used 70% to figure the SA/DA ratio and Rv factor, which is causing a slight deficiency (about 100 square feet) in the surface area. Can you tweak the design a little so that there is no deficiency? Linda 1 of 1 3/30/2004 2:48 PM State of North Carolina Department of Environment and Natural Resources Wilmington Regional Office Division of Land Resources Land Quality Section Michael F. Easley, Governor William G. Ross Jr., Secretary - �,�' January 22, 2004 1� 4CDENR NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES NOTICE OF RECEIPT OF EROSION & SEDIMENTATION CONTROL PLAN Pike Electric, Inc. Mr. Gene Walden, Assistant Vice President P.O. Box 868 Mt Airy NC 27030 Dear Mr. Walden: This office has received a soil erosion and sedimentation control plan for the project listed below which was submitted as required by the North Carolina Sedimentation Pollution Control Act INCGS 113A-57(4)). Please be advised that this 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 said land disturbing activity (NCGS 113A- 54(d)(4)). The act further states that this plan must be filed a minimum of 30 days prior to the activity and the approving authority must approve or disapprove the submitted plan within 30 days of receipt. Failure of the approving authority to approve or disapprove the submitted plan within the 30 day period will be deemed approval of the plan. Commencement or continuation of a land -disturbing activity under the jurisdiction of this Act prior to the approval of an erosion and sediment control plan is a violation of the Act. A copy of any erosion and sediment control plan which could involve the utilization of ditches for the purpose of dewatering or lowering the water table is forwarded by this office to the Division of Water Quality (DWQ). It is suggested that you contact the Division of Water Quality at (910) 395-3900 if the ditches shown on your plan will lower the water table. The approval of an erosion 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, A� Kevin R. Rowland Environmental Technician KRR:bfr cc: David B. Bowman; East Coast Engineering WiRO-LQS PROJECT NAME: Pike Electric PROJECT NUMBER: Bruns-2004-199 LOCATION: US 17 - Brunswick County RIVER BASIN: Lumber SUBMITTED BY: East Coast Engineering DATE RECEIVED BY LQS: January 22, 2004 127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone 910-395-3900 • Fax 910-350-2004 An Equal Opportunity Affirmative Action Employer East Coast Engineering Company, P.A. Fax: 910.754.8049 Consulting Engineers Office 910.754.8029 January 21, 2004 Ms. Linda Lewis Water Quality Section NC Department of Environment and Natural Resources 127 Cardinal Drive Extension Wilmington, North Carolina 28405-3845 \ Subject: Pike Electric Brunswick County High Density Project Dear Ms. Lewis: 4918 Main Strcrt Post Office Box 2469 Shallotte, NC 28459 JA N 2 2 Z004 _LYE/ � o Enclosed for your review and approval is a submittal package for a substation for Pike Electric in Brunswick County. For your ease of reference, the following presents the various components of the enclosed submittal package: 1. One original and one copy of the Stormwater Management Permit Appkeation Dorm. 2. One original and one copy of the Wet Detention Basin Supplement to the Stornwatcr Plan. 3. Two sets of plans, sheets 1 and 2. 4. A Project Narrative, sheet 1 of 1. 5. Design Calculations, sheets 1-3. 6. A check in the amount of $420 to cover the required modification/application fee. If you have any question or require any additional information, please do not hesitate to contact our office. Sincerely, Elizabeth M. Nelson, El Enclosures copy: Mr. Gene Walden File: 0571 (Pike Electic) EAST COAST ENGINEERING CO., P. A. (910)754-8029 P.O. BOX 2469 4918 MAIN ST. SHALLOTTE NC 28459 PAY TO THE 5242 DATE_ / —'�) I _(31 i / 67-7235-2532 _DOLLARS 8 �=v— COASTAL FEDERAL BANK U SHIALLLO"E, NC 28470 FOR 9 rC7-CeV-(J�L'LJ East Coast Engineering Company, P.A. 4918 Main Street Fax: 910.754.8049 Consulting Engineers Post Office Box 2469 Office: 910.754.8029 q Shallotle, NC 28459 PROJECT NARRATIVE Pike Electric is proposing to develop property on US 17, approximately 1.75 miles south of NC 211. The property has an existing residence and two existing storage buildings. According to the Brunswick County tax records, the existing residence was constructed in 1967. Pike Electric proposes the addition of a gravel area for parking and the storage of heavy equipment. Stormwater will be directed to a proposed on -site wet detention basin that is designed to treat the first one -inch of runoff. The total area of disturbance for the project is 4.8 acres. Temporary silt fencing and a construction entrance should be sufficient to prevent any significant amounts of sediment from leaving the site. These measures shall be inspected regularly, and the accumulated sediment removed to prevent the conveyance of sediment to any off -site areas. The primary permanent erosion control measures that will remain after the temporary measures are removed will be permanent grassing and gravel.