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HomeMy WebLinkAboutSW8021217_CURRENT PERMIT_20030602STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW,D/�I DOC TYPE � CURRENT PERMIT APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE YYYYMMDD OF �9 O�VA74Michael F. Easley, Governor 7William G. Ross Jr., Secretary. CO �1 North Carolina Department of Environment and Natural Resources < Alan W. Klimek, P.E.,Director Division of Water Quality June 2, 2003 Mr. Thomas S. Bennett, Jr., Managing Partner Clearwater on Country Club Development Corporation 3100 Arendell Street Morehead City, NC 28557 Subject: Permit No. SW8 021217 Clearwater on Country Club High Density Stormwater Project Carteret County Dear Mr. Bennett: The Wilmington Regional Office received a complete Stormwater Management Permit Application for Clearwater on Country Club on May 29, 2003. 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 021217 dated June 2, 2003, for the construction of Clearwater on Country Club. This permit shall be effective from the date of issuance until June 2, 2013, 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 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 matter, please contact Linda Lewis, or me at (910) 395-3900. Sincerely, r)-� Lv- Rick Shiver Water Quality Regional Supervisor RSSarl- S:\WQS\STORMWARPERMIT\021217.junO3 cc: Kevin Kuhn, Stroud Enginering Morehead City Building Inspections Linda Lewis Wilmington Regional Office Central Files N. C. Division of Water Quality Wilmington Regional Office 127 Cardinal Drive Extension Wilmington, NC 28405 (910) 395-3900 (910) 350-2004 Fax Customer Service 1 800 623-7748 NAr 3,! DENR a . 1 11 State Stormwater Management Systems Permit No. SW8 021217 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 Thomas Bennett, Jr., Clearwater on Country Club Development Corporation Clearwater on Country Club Carteret County FOR THE construction, operation and maintenance of an offsite wet detention pond and for the discharge of runoff into an offsite 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. The stormwater runoff from drainage area #2 will be routed to a wet detention pond operated and maintained by Camellia CourtApartments Limited Partnership, under the terms and conditions set forth in Permit No. SW8 970728. This permit shall be effective from the date of issuance until.June 2, 2003, 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 ProjerFt Data Sheet. Pond #1 has been designed to handle the runoff from.29,185 ft of impervious area. The offsite pond has been designed to handle the runoff from 55,757 ft2 of impervious area from this development, per the approved drainage area plans. 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 S State Stormwater Management Systems Permit No. SW8 021217 DIVISION OF WATER QUALITY PROJECT DESIGN DATA SHEET Project Name: Permit Number: Location: Applicant: Mailing Address: Application Date: Receiving Stream/River Basin: Stream Index Number: Classification of Water Body: Drainage Area, acres: Onsite, sq. ft.: Offsite, sq. ft.: Total Impervious Surfaces, sq. ft.: Pond Depth, feet: TSS removal efficiency: Permanent Pool Elevation, FMSL: Permitted Surface Area, sq. ft.: Permitted Storage Volume, cubic ft.: Temporary Storage Elevation, FMSL: Controlling Orifice: Permitted Forebay Volume, cubic ft.: Clearwater on Country Club SW8 021217 Onsite pond Country Club Road Morehead City, Carteret County Thomas S. Bennett, Jr., Managing Partner Clearwater on Country Club Development Corporation 3100 Arendell Street Morehead City, NC 28557 May 29, 2003 Calico Creek 1 White Oak WOK03 21-32 "SC" 29,185 4.0 90% (no filter is required) 9.33 2,862@Permanent Pool 3,687 10.33 0.75" 0 pipe (drawdown in 2-5 days) 1,188 3 f Project Name: Permit Number: Location: Applicant: Mailing Address: State Stormwater Management Systems Permit No. SW8 021217 DIVISION OF WATER QUALITY PROJECT DESIGN DATA SHEET Camellia Court Apartments SW8 970728 Application Date: Receiving Stream/River Basin: Stream Index Number: Classification of Water Body: Drainage Area, acres: Onsite, sq. ft.: Offsite, sq. ft.: Total Impervious Surfaces, sq. ft.: Onsite, sq. ft.: Offsite, SW8 021217, sq. ft.: Pond Depth, feet. TSS removal efficiency: Permanent Pool Elevation, FMSL: Permitted Surface Area, sq. ft.: Permitted Storage Volume, cubic ft.: Temporary Storage Elevation, FMSL: Controlling Orifice: Permitted Forebay Volume, cubic ft.: 4609 Country Club Road Morehead City, Carteret County Keith Walker, Vice President Camellia Court Apartments Limited Partnership 315 Turner Street Beaufort, NC 28516 May 29, 2003- Calico Creek / White Oak VVOK03 21-32 "SC" 4.49 134,888 60,548 130,914 75,157 55,757 6.2 90% (no filter is required) 8.00 7,064 @Permanent Pool 11,825 9.50 1.25"0 pipe (draw down in 2-5 days) 5,463 4 State Stormwater Management Systems Permit No. SW8 021217 II. SCHEDULE OF COMPLIANCE 1. The stormwater management system shall be constructed in it's entirety, vegetated and operational for its intended use prior to the construction of any built -upon surface. 2. Quring 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. G. 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 not be allowed in the stormwater treatment system. 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. a. 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. 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. 5 State Stormwater Management Systems Permit No. SW8 021217 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. 16. The amount of built -upon area draining to each pond is limited to that amount indicated in the supporting calculations and per the approved plans. The part of this project that drains to the offsite pond must have a built -upon area less than or equal to the amount permitted under Stormwater Permit #SW8 970728. Additional built -upon area will require a modification to the overall Permit. Ill. GENERAL CONDITIONS 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. 2. . 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. I State Stormwater Management Systems Permit No. SW8 021217 3. 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. 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 2nd day of June, 2003, NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION Alan W.W. Klimek, P.E.�or Division of Water Quality By Authority of the Environmental Management Commission 7 State Stormwater Management Systems Permit No. SW8 021217 Clearwater on Country Club Stormwater Permit No. SW8 021217 Carteret 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 I State Stormwater Management Systems Permit No. SW8 021217 Certification Requirements: 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. The outlet/bypass structure elevations are per the approved plan. .5. The outlet structure is located per the approved plans. 6. Trash rack is provided on the outlet/bypass structure. 7. All slopes are grassed with permanent vegetation. 8. Vegetated slopes are no steeper than 3:1. 9. The inlets are located per the approved plans and do not cause short- circuiting of the system. 10. The permitted amounts of surface area and/or volume have been provided. .11. Required drawdown devices are correctly sized per the approved plans. .12. All required design depths are provided. 13. All required parts of the system are provided, such as a vegetated shelf, and a forebay. 14. The required system dimensions are provided per the approved plans. cc: NCDENR-DWQ Regional Office Morehead City Building Inspections I �'�as� •^P...:.a, ,<.s,,a�::E �:: ;,xr'��,.,w,r..�.�-<. &'fCil?FICF<i:TSE�ONLY'� Date Received Fee Paid Permit Number 2—" �O 0d State of North Carolina Department of Environment.and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM This form may be photocopied for use as an original I. GENERAL INFORMATION 1. Applicants name (specify the name of the corporation, individual, etc. who owns the project): Clearwater on -Country Club Development Corporation 2. • . Print Owner/Signing Official's name and title (person legally responsible for facility and compliance): Thomas S. Bennett, Jr., Managing Partner 3. Mailing Address for person listed in item 2 above: 3100 Arendell Street City: Morehead City ______ _ State: NC Zip: 28557 Telephone Number: 252- 726-2996 4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): Clearwater on Country Club 5. Location of Project (street address): Country Club Road -Adjacent -To Camelia Court City. Moi ehead -City ' �j County:`" T rtarat 6. Dir' tions to,project (from nearest major-interseat o'O . % From the Intersection of NC Hwy.;- 24',and Country Club Road, Take Country Club Road East, Site is Adjacent:to Camelia Court Project �E -.N34° 44..11'. Longitude: W 76° 46.83 of project 7. Latitude: . u� 8. Contact person who can answer questions about the project: -- -Name: + Kevin Kuhn, P.E. _ ' Telephone Number: ( 252 } 247-7479 IT. PERMIT INFORMATION: 11 1. Specifywhether project is (check one): X - . New. Renewal Modification Form SWU-101 Version 3.99 Page 1 of P 2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the existing permit number N/A 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 X 404/401 Permit NPDES Stormwater d Information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748. , • 1. ". . , , - .. _ .. -.. , _ ti .. III. PROJECT INFORMATION 1. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative (one to two pa es) describing stormwater management for the project . in ��-i StormwaterAis routed to new 4' deep 90% tss removal pond and stormwaterAis routed to an existing pond -treating Camelia Court. The exzsting_pond depth will be increased from 4' to 6.2' 2. Stormwater runoff from this project drains to the '.White Oak River basin. 3. Total Project Area: 4.83 acres - 4. Project Suitt Upon Area: 5. How many drainage areas does the project have? 2 40 % 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. OFFsr 1c 6 V 0728 Receiving Stream Name Calico-Grehk Calico Creek Receiving Stream Class SC SC Drainage Area �. ZAc Existing Impervious* Area Proposed Im ervious#Area -"4 e % Impervious 4 Area (total) 92% <Irn eivions� Surface Area °� , . DratnagefArea 1 €f a �E s.Y r„`� 3 KK -- —1 "fTlPl. y.� � , , r, A Dramage Area, '. On -site Buildings )AG Z 8-.4b-�1c W6gg JA'Z On -site Streets 9-,-2t-Ac Z �-r4 �- e I lab447 On -site Parking Z Z On -site Sidewalks Z p-— A Other on -site Off -site Total: a _&;L e Z Z Total: 4.25- . " Impervious area is defined as the built FPa ing, but not Iimited to, buildings,roads,'parking areas, sidewalks, gravel areas, etc. FormSWU-101 Version3.99 e 2 of.4 VI., SUBMITTAL REQUIREMENTS n 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. 1. 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 BMP • 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) VII. 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):_ Stroud Engineering, P.A. Mailing Address;151_ A Hwy 24 City: Morehead —City State: NC Zip: 28557 Phone: ( 252 ) 247-7479 _ Fax: ( 252. ) 247-4098 -_ VIII. APPLICANT'S CERTIFICATION 1, (print or type name of person listed in General Information' item 2) 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 .1000. Date: I Z- 18` a z- Form SWU-101 Version 3.99 Page '4 of 4 .7.. How was the off -site impervious area listed above derived? N/A 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''lottnumber, size and the allowable b6ilt-upon area for each lot must be provided as an attachment. p I. The following icovenants 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 by 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 manage►nent.permit modification prior to construction. 5. All permitted runoff from outparcels or future 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 state stormwater management permit supplement form(s) listed below must be submitted for each BMP specified for this project. Contact the Siorm;vater 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:D`ensity.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 4 n Form SWU-101 Version 3.99 Page 3 of 4 Permit No.'s W (to be provided by DWQ) State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM OFF -SITE SYSTEM SUPPLEMENT FOR DEVELOPMENT DRAINING TO PERMITTED OFF -SITE TREATMENT SYSTEMS This form may be photocopied for use as an original DWQ Stormwater Management_ Plan Review: A complete stormwater management'plan submittal includes a stormwater management permit application, an off -site system supplement for each off -site stormwater treatment system, appropriate supplement forms for any on -site stormwater treatment systems, and plans .and specifications -showing all stormwater conveyances and drainage details for the project. I. PROJECT INFORMATION Project Name : Clearwater on Country Club Contact Person: Kevin Kuhn, P. E. Phone Number: (.,,.252 ) 247-7479 Is all drainage from the project directed to the offsite system? (circle orie): ' -'Yes ;," 1!z- h0;? Dt bleorwzte_ Qlr'21175'.F0/7 Gl-S;/C QcX.I II. OFF -SITE SYSTEM INFORMATION (please -complete the following information for the -off -site system that will treat runoff from your project): Permit No. SW8 970728 Project Name: Camelia Court -,Apartments Type of System (wet pond, infiltration basin, etc.): .Wet Pond Lot No. (if part of a subdivision): la A How much built upon area draining to the permitted treatment system has been allocated to this projects III. REQUIRED ITEMS CHECKLIST Prior to issuing an off -site per_riit_, -verification of the following information,;must+be provided. Initial in the space provided to indicate that 'the following requirements have been.� tang sup!o mrtmg documentation Is attached. if the applicant has designated an agent in the. Stormwater Management-f alit Application Form, the agent may initial below: If a requirement has not been met, attach justification k , - Form SWU-106 Ver 3.99 Page I of 2 "•,' lt��� �,` je Applicants Initials � 4/_ a. Deed restrictions limiting the built -upon area on the site have been recorded. b. Engineers certification for the existing off -site system has been submitted to DWQ. c. There are no outstanding Notices of Violation for the off -site system. d. Off -site system.is in compliance with the issued permit. IV. STORMWATER COLLECTION SYSTEM MAINTENANCE REQUIREMENTS 1. Mowing will be accomplished as needed according to the season. Grass height will not exceed six inches at any time. 2. Accumulated sediment and trash will be removed from the collection system as necessary. Swales and ditches will be reseeded or sodded following sediment removal. Eroded areas of swales and ditches will be repaired and reseeded. Swales and ditches will be revegetated as needed based on monthly inspections. 4. The collection system, including catch basins, curb cuts, velocity reduction devices, and piping, will be inspected monthly or after every significant runoff producing rainfall event. Trash and debris will be cleared away from grates, curb cuts, velocity reduction devices, and piping. The collection system may not be altered in any way without prior approval from NCDENR Division of Water Quality.. I acknowledge and agree by my signature below that I am responsible for maintaining the stormwater collection system in accordance with the five 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 and Title: Thomas S. Bennett Jr., Managing Partner Address: _ _ 3100 _Arendell Street Morehead_ City, NC 28557 Phone: (252) 726-2996 Date: I zY/ {'(b t— Signature: A4-c-+4-,� x Note: The legally responsible parry 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. 1, Hfk= Q s. 1. MeAmW e- _ , a Notary Public for the State of KIOP_T�_otim" :, County'6f CR.Ayt`f-� _ —,do hereby certify that Thomas S . Bennett, Jr_. _ _ personally appeared before me this /,07"4 day of O <4" _, _ TL Z--__ and acknowledge the due execution of the forgoing infiltration basin maintenance requirements ss my. hand and official seal., "Jil eifor. . L 00i •me . -9 •.� .6. .� SEAL A� 8 t IC My commission expires deT og9 " :may'•. : go.. - For -in SWU-106 Rev 3 v"�,'••....•••• ��.`� Page 2 of 2. ' �'cq©Q"7 ' Permit Na. (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: Clearwater on Country Club Contact Person: Kevin Kuhn, P.E. Phone Number: f 252) 247-7479 For projects with multiple basins, specify which basin this worksheet applies to: 1 , elevations Basin Bottom Elevation 5.33 ft, (floor of the basin) Permanent Pool Elevation Temporary Pool Elevation 9.33 10.33 ft. ft. areas Permanent Pool Surface Area 2862 sq. ft. Drainage Area ,05 ��"i �Z ac. $1 Impervious Area Y 0.67 ac. volumes Permanent Pool Volume 5850 Temporary Pool Volume 3687 Forebay Volume 1188 Other parameters SA/DA 1 5.86 Diameter of Orifice 314 Design Rainfall 7.23 Design TSS Removal 2 90 (elevation of the orifice). (elevation of the discharge structure overflow) - '• (water surface area at the orifice elevation) (on -site and off -site drainage to the basin) (on -site and off -site drainage to the basin) cu: ft. (combined volume of main basin and forebay) cu. ft. (volume detained above the permanent pool) cu. fit. (approximately 20% of total volume) (surface area to drainage area ratio from DWQ table) in. (2 to 5 day temporary pool draw -down required) in. % (minimum 85% re'quired) Form SWU-102 Rev 3.99 Page 1 of. 4 Ir Footnotes, . When using the Division SA/DA tables, the correct SAIDA 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. 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. II. 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. Applicants Initials a. The permanent pool depth is between 3 and 6 feet (requiredminimum of 3 feet). b. The forebay volume is approximately equal to 20% 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. h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail). i. Vegetative cover above the permanent pool elevation is specified. j. 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. L 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. Pum 6m. 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 This system (check one) 0 does �oes not incorporate a vegetated filter at the outlet incorporate pretreatment other than a forebay. Form SWU-102 Rev 3.99 Page 2 of 4 Maintenance activities shall be performed as follows: 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%a of the original design depth (see diagram below). Removed sediment shall be disposed of in an appropriate. manner and shall be handledin 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. &z� When the permanent pool depth readsi!333 feet in the main pond, the sediment shall be removed. _--� When the permanent pool depth reads Sediment Retltoval El. 7.08 Bottom Eleation 6.33 75 5 �rli',flLQi:. feet in the forebay, the sediment shall be removed. i s BASIN DIAGRAM ill in the blanks)' Permanent Pool Elevation 9.33 '.�1�Ii3�3D �``•,. Sediment Removal Elevation 6 33 75% Bottom Elevation S• 33, ; 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. b. 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 S W U-102 Rev 3.99 Page 3 of 4 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: Thomas S. Bennett, Jr. Title: Managing Partner Address: 3I00 Arendell Street, Morehead -..City, NC 28552 Phone: Signatl Date: I z-1 ME) 2- 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. a Notary Public for the State of County of 6eA yeP , do hereby certify that Thomas S. Bennett, Jr: personally appeared before me this %?774 day of D&if -_W8,6 2 Zl04, and acknowledge the due execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal, ,��ggrrr►rrrrr� �Q:0- p G CO SEAL My commission expires eCT �_ Q 4JOU Form SWU-102 Rev 3.99 rage 4 of 4 ff STROUD ENGINEERING, P.A. CONSULTING ENGINEERS HESTRON PLAZA TWO 151-A HWY. 24 MOREHEAD CITY, NORTH CAROLINA 28557 (252) 247-7479 July 11, 2012 Ms. Georgette Scott, P.E. NC Division of Water Quality 127 Cardinal Drive Ext, Wilmington, NC 28405 Re: Engineering Certifications Clearwater on Country Club, SW8 021217 Camelia Court Apartments, SW8 970728 Dear Ms. Scott, RECEIVED JUL 1 ` - 2012 I have been asked by Tonia Glasgow, HOA representative for Clearwater on Country Club to review our files for engineering stormwater certifications for the above referenced projects. They are adjoining communities and a portion of Clearwater's stormwater runoff is permitted as an offsite system on the Camelia Court wet -detention pond. We were unable to locate a certification for Clearwater nor we able to locate a certication for the modification to Camelia. Based on that, we are generating the certifications now. We were closely involved during construction of both communities and the facilities were constructed as designed and approved. If I can provide any additional information, please let me know, Cc: Tonia Glasgow Keith Walker 107 COMMERCE ST. SUITE 8 GREENVILLE, NC 27858 (252) 756-9352 102-D CINEMA DRIVE WILMINGTON, NC 28403 (910)815-0775 ncerely, n 191I& D. Cullipher, P.E. �.��N CaRO4. , =......,. , ti OQESSid, :.� SEAL, 13343 Q D , .CV,.. HESTRON PLAZA TWO 151-A HWY.24 MOREHEAD CITY, NC 28557 (252) 247-7479 State Stormwater nagement Systems F;,. mit No. SW 8 021217 Clearwater on Country Club Stormwater Permit No. SW8 021217 Carteret County Designer's Certification 1 , as a duly registered em in the State of North Carolin , having been authorized to obs rve (periodica we klyl full time) the construction of the project, (Project) 11 .1 -b CcrP • to C� eGWwF,�e/yn on.�6� f c1� _ -- Pr ject Owner) hereby state that, to the best of my abilities, due care an 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: OTI�6 ti natur �Csc� g w Registration Number Date] •` pP� H Cq ''�ii .� A.0 . y. q EAL ,��•: 9 s ri =0 '2 • 9 ••'•�CINF-St-- �iQ: •, �p •••.....••• % Cu� 1� ' `P� ' � R � r. { � � ��� ! �l` >' v F r � �'r -t ¢,� :. � `✓� � ! �_ r� El State )rmwater Management Systems Permit No. SW8 021217 Certification Requirements: o� .1, The drainage area to the system contains approximately the permitted acreage. P`2. The drainage area to the system contains no more than the permitted amount of built -upon area. f414_3. All the built -upon area associated with the project is graded such that the runoff drains to the system. 4. The outlet/bypass structure elevations are per the approved plan. 5, The outlet structure is located per the approved plans. 6. Trash rack is provided on the outlet/bypass structure. 7. All slopes are grassed with permanent vegetation. dW—B. Vegetated slopes are no steeper than 3:1. (Rb�__ 9. The inlets are located per the approved plans and do not cause short- circuiting of the system. 10. The permitted amounts of surface area and/or volume have been provided. 11. Required drawdown devices are correctly sized per the approved plans. 12. All required design depths are provided. K-13. All required parts of the system are provided, such as a vegetated shelf, p , and a forebay. ►`� 14. The required system dimensions are provided per the approved plans. cc: NCDBNR-DWQ Regional Office Morehead City Building Inspections 0