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HomeMy WebLinkAboutSW8970936_CURRENT PERMIT_20210728STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW8 DOC TYPE T�J CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE 202k 0-12 8 YYYYMMDD r , ROY COOPER covernar DIONNE DELLI-GATTI Secretary BROW WRENN Dhvctor July 28, 2021 NORTH CAROLINA 6rvUoa tdQuakty Winding River Plantation Community Association, Inc Attn: Roger Stow, President 1640 Goley Hewett Road Bolivia, NC 28422 Subject: Permit Renewal State Stormwater Management Permit No. SW8 970936 Clearwater Place at Winding River Plantation Brunswick County Dear Mr. Stow: Effective August 1, 2013 the State Stormwater program has been transferred from the Division of Water Quality (DWQ) to the Division of Energy, Mineral and Land Resources (DEMLR). All previous references to DWQ will remain in older stormwater permits issued prior to August 1, 2013 until they are modified. Please note that this permit will now reference DEMLR as the Division responsible for issuance of the permit. The Wilmington Regional Office received a complete 8 year Stormwater Management Permit Renewal Application for the subject project on July 26, 2021. The Division is hereby notifying you that permit SW8 970936 has been renewed on July 28, 2021, and shall be effective until January 30, 2029. For your records, please find enclosed a renewed, updated, and re -issued permit and a copy of the renewal application. As requested, a copy of the current operation and maintenance agreement is enclosed. Please keep this permit on file at all times. Please note that the renewed, updated, and re -issued permit does not impose new or different terms; it merely restates some of the previous terms to provide you with a better understanding of your obligations under the permit The renewal and reissuance of this stormwater permit does not imply that the site is currently in compliance with the terms and conditions of this state stormwater permit. The plans originally approved on January 13, 1998 and most recently transferred on August 31, 2011, will remain in full force and effect in accordance with the regulations set forth in Title 15A NCAC 2H.1000. This permit is subject to the conditions and limitations as specified therein. Please pay special attention to the conditions listed in this permit regarding the Operation and Maintenance of the BMP(s), recordation of deed restrictions, procedures for changes of ownership, transferring the permit, and renewing the permit. Failure to establish an adequate system for operation and maintenance of the stormwater management system, to record deed restrictions, to transfer the permit, or to renew the permit, 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 by filing a written petition with the Office of Administrative Hearings (OAH). The written petition must conform to Chapter 150B of the North Carolina General Statutes and must be filed with the OAH within thirty (30) days of receipt of this permit. You should contact the OAR with all questions regarding the filing fee (if a filing fee is required) and/or the details of the filing process at 6714 Mail Service Center, Raleigh, NC 27699-6714, or via telephone at 919-431-3000, or visit their website at www.NCOAH.com. Unless such demands are made this permit shall be final and binding. If you have any questions, need additional copies of the permit or approved plans, please contact Ashley Smith in the Wilmington Regional Office, at (910) 796-7215 or ashleym.smith@ncdenr.gov. Sincerely, Brian Wrenn, erector Division of Energy, Mineral and Land Resources V — S North Carolina Department of Environmental Quality I Division of Energy. Wneral and Land Resources C Q�J Wilmington Regional Office 1127 Cardinal Drive Extension I Wilmington. North Carolina 2a405 wweN cenouN. r 910.796.7215 I Enclosures: DES/ams: cc: State Stormwater Permit No. SW8 970936 Page 2 of 2 Attachment C — Permitting History Renewal Application Documents %Stormwater\Permits & Projects\ 1 997\970936 HD\2021 07 permit 970936 NCDEQ-DEMI.R Wilmington Regional Office North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources ./ WRmington Regional Office 1127 Cardinal Drive Extension I Wilmington. North Carolina 28405 910.796.7215 State Stormwater Management Systems Permit No. SW8 970936 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF ENERGY, MINERAL AND LAND RESOURCES 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 Winding River Plantation Community Association, Inc. Clearwater Place at Winding River Plantation Goley Hewett Road, Bolivia, 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 Energy, Mineral and Land Resources (the "Division" or "DEMLR") and considered an enforceable part of this permit. This permit shall be effective from the date of issuance until January 30, 2029, and shall be subject to the following specified conditions and limitations: I. DESIGN STANDARDS This permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data. 2. This stormwater system has been approved for the management of stormwater runoff as described in Section 1.6 on page 2 of this permit. The stormwater control has been designed to handle the runoff from 237,576 square feet of impervious area. The tract will be limited to the amount of built -upon area indicated on page 2 of this permit, and per approved plans. The built -upon area for the future development within Phase I onsite is 882 ft2. 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. The runoff from all built -upon area within the permitted drainage area of this project must be directed into the permitted stormwater control system. Page 1 of 5 State Stormwater Management Systems Permit No. SW8 970936 The following design criteria have been provided in the wet detention pond and must be maintained at design condition: a. Drainage Area, acres: Onsite, ft2: Offsite, ft2: SW8 990453 Phase II Future: b. Total Impervious Surfaces, ft2: Phase I onsite, ft2: Phase II offsite, ft2: SW8 990453 offsite, ft2: C. Design Storm, inches: d. Pond Depth, feet: e. TSS removal efficiency: f. Permanent Pool Elevation, FMSL: g. Permanent Pool Surface Area, ft2: h. Permitted Storage Volume, ft3: i. Temporary Storage Elevation, FMSL: j. Controlling Orifice: k. Permitted Forebay Volume, ft3: I. Max. Fountain Horsepower: I. Receiving Stream/River Basin: m. Stream Index Number: n. Classification of Water Body: II. SCHEDULE OF COMPLIANCE 10.05 198,180 239,702 67,082 172,620 237,576 96,000 101,576 40,000 1 6.0 90% 20.0 14,130 23,910 21.47 2.0"O pipe 8,650 1/6 Lockwoods Folly River / LBR59 15-25-1-(11) "SC HQW' 1. The stormwater management system shall be constructed in its entirety, vegetated and operational for its intended use prior to the construction of any built -upon surface. 2. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 3. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted stormwater system functions at the design condition. 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 DEMLR. The records will indicate the date, activity, name of person performing the work and what actions were taken. 5. The facilities shall be constructed, operated and maintained in accordance with the provisions of this permit, the approved plans and specifications, and the supporting documents attached to this permit and on file with the Division. 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. Page 2 of 5 State Stormwater Management Systems Permit No. SW8 970936 Decorative spray fountains are allowed in the pond, subject to the following criteria: a. The minimum permanent pool volume is 30,000 cubic feet. b. The fountain must draw its water from less than 2' below the permanent pool surface. C. 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. d. The fountain may not be placed into the forebay. e. The falling water from the fountain must be centered in the main pond, away from the shoreline. f. The maximum horsepower for a fountain in this pond is 1/6 horsepower. 8. 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. 9. Access to the stormwater facilities shall be maintained via appropriate easements at all times. 10. 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. 11. No person or entity, including the permittee, shall alter any component shown in the approved plans and specifications. Prior to the construction of any modification to the approved plans, the permittee shall submit to the Director, and shall have received approval for modified plans, specifications, and calculations including, but not limited to, those listed below. For changes to the project or SCM that impact the certifications, a new or updated certification(s), as applicable, will be required and a copy must be submitted to the appropriate DEQ regional office upon completion of the modification. a. Any modification to the approved plans and specifications, regardless of size including the SCM(s), BUA, details, etc. b. Redesign or addition to the approved amount of BUA or to the drainage area. C. Further development, subdivision, acquisition, lease or sale of any, all or part of the project and/or property area as reported in the approved plans and specifications. d. Altering, modifying, removing, relocating, redirecting, regrading, or resizing of any component of the approved SCM(s), the stormwater collection system and/or vegetative conveyance shown on the approved plan. e. The construction of any allocated future BUA. f. Adding the option to use permeable pavement or #57 stone within the lots as a permeable surface. The request may require a proposed amendment to the deed restrictions and protective covenants for the subdivision to be submitted and recorded. g. The construction of any permeable pavement, #57 stone area, public trails, or landscaping material to be considered a permeable surface that were not included in the approved plans and specifications. h. Other modifications as determined by the Director. 12. Prior to transfer of the permit, a file review and site inspection will be conducted by Division personnel to ensure the permit conditions have been met and that the project and the on -site stormwater system complies with the permit conditions. Any items not in compliance must be repaired, replaced restored, or resolved prior to the transfer. Records of maintenance activities performed to date may be requested. Page 3 of 5 State Stormwater Management Systems Permit No. SW8 970936 III. GENERAL CONDITIONS Any individual or entity found to be in noncompliance with the provisions of a stormwater management permit or the requirements of the stormwater rules is subject to enforcement procedures as set forth in NCGS 143 Article 21. The issuance of this permit does not preclude the permittee from complying with and obtaining any other permits or approvals that are required for this development to take place, as required by any statutes, rules, regulations, or ordinances, which may be imposed by any other Local, State or Federal government agency having jurisdiction. Any activities undertaken at this site that cause a water quality violation or undertaken prior to receipt of the necessary permits or approvals to do so are considered violations of NCGS 143-215.1, and subject to enforcement procedures pursuant to NCGS 143-215.6. If the facilities fail to perform satisfactorily, the permittee shall take immediate corrective actions. This includes actions required by this Division and the stormwater rules such as the construction of additional or replacement on -site stormwater systems. These additional or replacement measures shall receive a permit from the Division prior to construction. Permit Transfer: This permit is not transferable to any person or entity except after notice to and approval by the Director. The permittee shall submit a completed and signed "Permit Transfer Application Form" (available on the Division website) accompanied by the required fee and supporting documentation as listed on the form, to the Division at least 60 days prior to any one or more of the following events: a. The sale or conveyance of the project area in whole or in part, except in the case of an individual lot sale that is made subject to the recorded deed restrictions and protective covenants; b. Dissolution of the partnership, corporate, or LLC entity, subject to NCGS 55-14-05 or NCGS 57D-6-07 and 08; C. Bankruptcy; d. Foreclosure, subject to the requirements of Session Law 2013-121; Current Permittee Name or Address Changes: The permittee shall submit a completed "Permit Information Update Application Form" (available on the Division website) to the Division within 30 days to making any one or more of the following changes: a. A name change of the current permittee; b. A name change of the project, C. A mailing address change of the permittee; 6. The permittee is responsible for compliance with all terms and conditions of this permit until the Division approves the transfer request. Neither the sale of the project, in whole or in part, nor the conveyance of common area to a third party constitutes an approved transfer of the permit. 7. The permittee grants Division Staff permission to enter the property during normal business hours to inspect all components of the permitted project. 8. The permit issued shall continue in force and effect until the permittee files a request with the Division for a permit modification, transfer, renewal, or rescission, however, these actions do not stay any permit conditions. 9. Approved plans, application documents, supplements, calculations, operation and maintenance agreement, and specifications for this project are incorporated by reference and are enforceable parts of the permit. A copy of this permit, application, supplements, operation and maintenance agreement, and approved plans and specifications shall be maintained on file by the permittee. 10. Unless specified elsewhere, permanent seeding requirements for the on -site stormwater system must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual. Page 4 of 5 State Stormwater Management Systems Permit No. SW8 970936 11. The issuance of this permit does not prohibit the Director from reopening and modifying the permit, revoking and reissuing the permit, or terminating the permit for cause as allowed by the laws, rules, and regulations contained in Title 15A NCAC 2H.1000 and NCGS 143-215.1 et.al. 12. A permit renewal request must be submitted at least 180 days prior to the expiration date of this permit. The renewal request must include the appropriate application, documentation and the processing fee as outlined in Title 15A NCAC 02H.1045(3). Permit renewed, updated and reissued this the 28th day of July 2021. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION Brian Wrenn, Uirector Division of Energy, Mineral and Land Resources By Authority of the Environmental Management Commission Page 5 of 5 Attachment C - Permitting History Clearwater Place at Winding River Plantation Permit No. SW8 970936 Approval Date permit Action BIMS Version Description of the Changes 1/13/1998 Original Approval 10 1/30/2007 Modification 1.1 8/31/2011 Transfer 1.2 7/28/2021 Renewal 2.0 II. -. -_ . __ ___.-__ __- .____.._IIFMI"N'll.\F'IINI'Y---- --- .______ —n Date Re c ived Fee Paid Permit Number �. $0,9 Su) Co NC DEQ Division of Energy, Mineral and Land Resources Mh STATE STORMWATER: ECEIVE PERMIT RENEWAL APPLICATION FORM jUL 2 G 2NA In accordance with 15A NCAC 2H.1045(3), the current permit holder shall renew their high density permit 180 days prior to its expiration. Renewed permits are valid for a period of 8 years per Session Law 2011-398 (SB 781) Section 60.(c). This application form is for permit renewals only. A. PROJECT INFORMATION 1. State Stormwater Permit Number: SW8 970936 2. Project name: Winding River Plantation Community Association, Inc. 3. Project street address: 1640 Goley Hewett Road City: E 28422 County: Brunswick ZIP : 4. What, if any, changes have been made to the project as permitted? N/A If the project has changed from the original approved plans, please complete SWU-101 for a Major Modification or Minor Modification Application form available at: hltps://deo.ne.gov/about/divisions/energy- B. PERMITTEE INFORMATION If changes to the permittee or project name have been made, please complete either the Permit Update form or the Permit Transfer form available at: https://deg.ne.gov/about/divisions/energy-mineral-land- resources/energy-mineral-land-rules/stormwater-program/post-construction. State Stormwater Permits do not automatically transfer with the sale of the property. 1. Current Permit Holder's Company Name/Organization: Winding River Plantation Community Association, Inc. 2. Signing Official's Name: Roger Stow 3. Signing Official's Title: WRPCA Board President 4. Mailing Address: 1640 Goley Hewett Road City: Bolivia State: NC ZIP: 28422 5. Street Address: 1640 Goley Goley Hewett Road City: Bolivia State: NC ZIP: 28422 6. Phone: (910) 755-7020 Email: cperrv(o)camsmgt.com Stormwater Permit Renewal Form Page 1 of 3 May 11, 2018 C. SUBMITTAL REQUIREMENTS Submit the application package to the appropriate DEMLR Regional Office (Coastal, SA Waters) or DEMLR Central Office (Urbanizing Areas Ph 2, USMP, Non -Coastal HQW/ORM. Only applications packages that include all required items listed below will be accepted and reviewed. Initial each item below to indicate that the required information is provided in the application package: IRS 1. A permit application processing fee of $505.00 payable to NCDEQ. IRS 2. One original signed hard copy and one electronic copy of this completed form. The signing official named on this application to represent the current permittee must meet one of the following: a. Corporation — a principle executive officer of at least the level of vice-president; b. Limited Liability Company (LLC) — a manager or company official as those terms are defined in G.S. 57D "North Carolina Limited Liability Company Act;" c. Public Entity — a principal executive officer, ranking official, or other duly authorized employee; d. Partnership or limited partnership — the general partner; e. Sole proprietor; or f. Letter of authorization signed by one of the signatories noted in a — e above authorizing the signature of another entity. IRS 3. One hard copy and one electronic copy of recorded documents required by the original permit that have not yet been received by DEMLR, including: deed restrictions, protective covenants, condominium/planned community declaration and easements. If the project has been built, include documentation that the maximum BUA per lot or maximum total BUA has not been exceeded. If the project has not been built, include a signed agreement that the final recorded deed restrictions and protective covenants will be submitted at a later date. IRS 4. O&M Agreements, Please select one: ❑ I have a copy of the current recorded O&M Agreement for all SCMs, and I will continue to keep this on file with the permit; or ® 1 do not have a copy of the current recorded O&M Agreement for all SCMs and am requesting a copy be sent to me. I agree to keep this on file with the permit. IRS 5. Designer Certifications, Please select one: ® A copy of the certification(s) confirming that the project was built in accordance with the approved plans have been previously provided to the Division; or ❑ A copy of the certification(s) confirming that the project was built in accordance with the approved plans are enclosed; or ❑ The project has not yet been built. 6. [IF APPLICABLE] If the project has been built, one original hard copy and one electronic copy of a signed, sealed, and dated letter from a licensed professional stating that the SCMs have been inspected, and that they have been built and maintained in accordance with the permit. 7. [IF APPLICABLE] When the permittee is a corporation or a limited liability corporation (LLC): Provide one hard copy and one electronic copy of documentation from the NC Secretary of State, or other official documentation, which supports the titles and positions held by the persons listed in Section C.2 per 15A NCAC 2H. 1043(3)(b). httos://www.sosnc.gov/online services/search/by title/ Business Registration JUL 2 6 2021 BY: Slormwater Permit Renewal Application Form Page 2 of 3 May 11, 2018 D. PERRMMITTEE'S CERTIFICATION the person legally responsible for the permit, certify that I have a copy of thLePermit and O&M Agreement on site (or I will obtain a copy and it will be kept on site), that I am responsible for the performance of the maintenance procedures, and the site has been and will be maintained according to the O&M Agreement and approved plans. I agree to notify DEMLR of any problems with the SCMs or built -upon area and to submit the proper forms to modify or transfer the permit prior to any changes to the project, SCMs, or ownership. All information provided on this permit renewal application is, to the best of my knowledge, orrect and complete. SignaDate: ture: NOTARIZATION: J f d imo, County of that e r Sf-o L.J this the 74 day of VaV execution of the forgoing instrument. Witness my and and official seal, (Notary Seal) Notary Signatun My commission a Notary Public for the State of do hereby certify personally appeared before me 20, and acknowledge the due `� Z; • i �OZAR y �Pa V T Z PUg�� otip SWICK G���`• 111111111\\\\ JUL 2 6 2021 Stormwater Permit Renewal Application Form Page 3 of 3 May 11, 2018 WINDING RIVER PLANTATION COMMUNITY ASSOCIATION, INC. MINUTES OF THE BOARD OF DIRECTORS WORKING BOARD MEETING December 16, 2020 Page 1 of 2 The meeting was called to order at 2:00 p.m. Board members present: Roger Stow, President; Eileen Ceponis, Vice President; Lois Miller, Secretary; Jim Phlegar, Treasurer; Wendy Cifelli, Member at Large; Susan Cun- ningham, Member at Large. COVID Issues The Board discussed the ABCPOA Fitness Center survey received from Teresa Casey. Eileen will share and discuss this survey with POC Chair Chuck Lewis. AAnoroval of Minutes Motion: To approve the December 9, 2020 Working Meeting Minutes as presented. Moved by Lois; seconded by Susan. All Aye. Motion carried. Treasurer's Report Jim Phlegar, new Board Treasurer, announced the Finance Committee membership: Jim Phlegar, Chair; Charlie Wezwick, Vice Chair; Mary Wezwick, Rick Banchansky, Pe- ter Panzarella, and Matt Keresman, members. Jim reviewed the financial packet pro- vided to the Board. He reported the Finance Committee is exploring clearer, more suc- cinct formats to share information with the Board and Community, compliant with CCRS requirements. Motion: To approve payment in December 2020 of approximately $64,000 from Operat- ing Funds to Turner Asphalt for work completed in 2020. (This payment was previously deferred until January, 2021.) Moved by Lois; seconded by Wendy. All Aye. Motion carried. Motion: To approve the $100,000 proposal from Storm Water Pipe Solutions for 2021 work, with the condition that the Storm Water Pipe Solutions contract is included as an addendum/appendix to the standard Winding River Plantation contract, to be returned to the Board for its final acceptance. Moved by Roger; seconded by Eileen. All Aye. Motion carried. Marina Dredging The Board discussed the information Steve Speer emailed regarding this 2021 project. Landscape Committee Projects The Board supports the Committee's efforts to complete and pay for in 2020 several planned landscape projects. JUL 2 6 2021 BY: POND MAINTENANCE REQUIREVIENTS Project Name: Clear Water Place @ Winding River Plantat�y�ecr No Clear Water Place Inc. Permittee: John Sabitini President Phone No. 910-579-1375 Address: P.O. Box 6059 South Brunswick, N.C., 28470 I. Monthly, or after every runoff producing rainfall event, whichever comes first: A. Inspect the trash rack; remove accumulated debris, repair/replace if it is not functioning. B. Inspect and clear the orifice of any obstructions. If a pump is used as the drawdown mechanism, pump operation will be checked. A 109 of test runs of the pump will be kept on site and made available to DEM personnel upon request. C. Inspect the pond side slopes and grassed inlet swales; remove trash, and repair eroded areas before the next rainfall event. D. If the pond is operated with a vegetated filter, the filter will be checked for sediment accumulation, trash accumulation, erosion and proper operation of the flow spreader mechanism. Repairs/cleaning will be done as necessary. II. Quarterly: A. Inspect the collection system (ie. catch basins, piping, grassed swales) for proper functioning. Accumulated trash will be cleared from basin grates, basin bottoms, and piping will be checked for obstructions and cleared as required. B. Pond inlet pipes will be checked for undercutting. Riprap or other energy dissipation structures will be replaced, and broken pipes will be repaired. III. Semi-annually: A. Accumulated sediment from the bottom of the outlet structure will be removed. B. The forebay depth will be checked at various points. Sediment removal is required when the depth is reduced to 75 % of the original forebay design depth of 4 C. Grassed swales, including the vegetated filter if applicable, will be reseeded twice a year as necessary. TORMWATER D E C E I V E D SEP 2 61997 D D E M PROJ POND MAINTENANCE REQUIREMENTS PAGE 2 IV. Annually: A. The pond depth will be checked at various points. Sediment removal is required when the depth is reduced to 75 % of the original design depth or 3', whichever is greater. Design depth is 6 ', measured vertically from the orifice down to the pond's bottom. Sediment must be removed to at least the original design depth. V. General: A. Mowing of the side slopes will be accomplished according to the season. Maximum grass height will be 6". B. Cattails are encouraged along the pond perimeter, however they will be removed when they cover more than 1/2 the surface area of the pond. The best time to cut them is at the end of the growing season, in November. Environmentally sensitive chemical for use in killing cattails can also be used. Contact your nearest Agricultural Extension Agent. C. The orifice/pump is designed to draw down the pond in 2-5 days. If drawdown is not accomplished in that time, the orifice will be replaced with a larger or smaller orifice. Slow drawdown may be attributed to a clogged system. The source of the clogging will be found and eliminated- D. All components of the detention pond system will be kept in good working order. Repair or replacement components will meet the original design specifications as per the approved stormwater plan. If previously approved components are determined to be ineffective, the component must be redesigned and/or replaced. VI. Special Requirements: Clear Water Place, Inc. I, Tobn gnl,i i- i n i President hereby acknowledge that I am the financially (please print or type name dearly) responsible party for maintenance of this detention pond. I will be responsible for the performance of the maintenance as outlined above, as part of the Stormwater Management Permit received for this project. - - ).FOR ESP #UC10.400/� J Permit No. 5i.t gcao(l_%t NCB` State of North Carolina (to be provided by DWQ) 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 DWQ 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: Clear Water Place @ Winding River Plantation C. Lawrence Sneeden, Jr., Contact Person: P.E. Phone Number: (910) 313-6648 For projects with multiple basins, specify which basin this worksheet applies to: 1 elevations Basin Bottom Elevation 14.0 ft. (floor of the basin) Permanent Pool Elevation 20.0 ft. (elevation of the orifices) Temporary Pool Elevation 21.47 ft. (elevation of the discharge structure overflow) areas Permanent Pool Surface Area 14,130 sq. ft. (water surface area at the orifice elevation) Drainage Area 'u16.10,05 —9-83 ac. (on -site and off -site drainage to the basin) Impervious Area (2 6.45 5: Y0 ac. (on -site and off -site drainage to the basin) pe, t-eA:5 c 1 CSIC5, volumes Permanent Pool Volume 45,090 cu. ft. (combined volume of main basin and forebay) Temporary Pool Volume 23,910 cu. ft. (volume detained above the permanent pool) Forebay Volume 8,650 cu. ft. (approximately 20% of total volume) Other parameters SA/DA' 3.5% (surface area to drainage area ratio from DWQ table) Diameter of Orifice 2 in. (2 to 5 day temporary pool draw -down required) Design Rainfall 1 in. Design TSS Removal z 90 % (minimum 85% required) Form SWU-102 Version 3.99 Page 1 of 4 Footnotes: When using the Division SAIDA 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. 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. IL . 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 LGS a. The permanent pool depth is between 3 and 6 feet (required minimum of feet). CGf b. The forebay volume is approximately equal to 20% of the basin volume. 645 c. The temporary pool controls runoff from the design storm event. CG 5 d. The temporary pool draws down in 2 to 5 days. eL f e. If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow calculations. CG 5 f. The basin length to width ratio is greater than 3:1. eL5 g. The basin side slopes above the permanent pool are no steeper than 3:1. ee5 h. A submerged and vegetated perimeter shelf with a slope of 6:1 or less (show detail). ccq i. Vegetative cover above the permanent pool elevation is specified. e.5 j. A trash rack or similar device is provided for both the overflow and orifice. ccs k. A recorded drainage easement is provided for each basin including access to nearest right- of-way. GG5 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. GGS 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) ® does This system (check one) ❑ does Form SWU-102 Version 3.99 ❑ does not incorporate a vegetated filter at the outlet. ® does not incorporate pretreatment other than a forebay. Page 2 of 4 1. 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 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 4.5 feet in the main pond, the sediment shall be removed. When the permanent pool depth reads 3.0 feet in the forebay, the sediment shall be removed. BASIN DIAGRAM (fill in the blanks) Permanent Pool Elevation 20.0 Sediment Re oval El. 17.0 1 150 --------------- - Sediment Removal Elevation 15.5 75% Bottom El vation 16.0 5%----------- otto ottom ------- ----- ---- BElevation 14.0 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 Version 3.99 Page 3 of 4 tl All components of the wet detention basin system shall be maintained in good working order. 1 acknowledge and agree by my signature below that I am responsible for the performance of the seven maintenance procedures listed above. 1 agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Print name: J. Mark Caldwell Title: manager/member Address: P.O. Box 10272, McLean, VA 22102 Phone: Signatt 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. 1, a,(MGt-�'h e 1✓l/1/l/}�,j/� a Notary Public for the State of V County of L'e'9 e" �9 <)VCx'�t , do hereby certify that J. %1%�QLAr lkl. /ln/lPi� l Personally appeared before me this day of I �LOOand acknowledge the due Execution of the foregoing wet detention basin maintenance requirements. Witness my hand and official seal. SEAL Signature ggVA /,KaV RR Y/IAAA� My commission expires S/ �j� 1/0 q Form SWU-102 Version 3.99 Page 4 of 4 ESP #UC10.400 Permit No. State of North Carolina (to be provided by DwQ) Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM WET DETENTION BASIN SUPPLEMENT This form may be photocopier! 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: Clear Water Place @ Winding River Plantation C. Lawrence Sneeden, Jr., Contact Person: P.E. Phone Number: (910) 313-6648 For projects with multiple basins, specify which basin this worksheet applies to: 1 elevations Basin Bottom Elevation 14 ft. (/loor of the basin) Permanent Pool Elevation 20.5 ft. (elevation of the orifices) Temporary Pool Elevation 21.7 ft. (elevation of the discharge structure overflow) areas Permanent Pool Surface Area 15,700 sq. ft. (water surface area at the orifice elevation) Drainage Area 8.85 ac. (on -site and off -site drainage to the basin) Impervious Area 6.56 ac. (on -site and off -site drainage to the basin) volumes Permanent Pool Volume 53,950 cu. ft. (combined volume of main basin and forebay) Temporary Pool Volume 20,700 cu. £t. (volume detained above the permanent pool) Forebay Volume 10,350 cu. ft. (approximately 20% of total volume) Other parameters SA/DA' Diameter of Orifice Design Rainfall Design TSS Removal Z 3.237% 2 in. 1 in. 90 % (surface area to drainage area ratio from DWQ table) (2 to 5 day temporary pool draw -down required) (mininnun 85%required) Form SWU-102 Version 3.99 Page 1 of 4 I , l Fobmotes: 1. 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 detemmine 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. 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 C LP a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet). C e. J' b. The forebay volume is approximately equal to 20% of the basin volume. e C.J c. The temporary pool controls runoff from the design storm event. C e-,r d. The temporary pool draws down in 2 to 5 days. CGJ e. If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow calculations. C ei f. The basin length to width ratio is greater than 3:1. C w g. The basin side slopes above the permanent pool are no steeper than 3:1. �i 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. _i j. A trash rack or similar device is provided for both the overflow and orifice. N �/} e,Ll k. A recorded drainage easement is provided for each basin including access to nearest right- of-way. 1. 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. G t.1' 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) ® does This system (check one) ❑ does Form SWU-102 Version 3.99 ❑ does not incorporate a vegetated filter at the outlet. ® does not incorporate pretreatment other than a forebay. Page 2 of 4 Maintenance•activitfes 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 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 When the permanent pool depth reads Sediment Bottom ial El. 17.0 1 7 ation 16.0 FOREBAY 4.5 feet in the main pond, the sediment shall be removed. 3.0 feet in the forebay, the sediment shall be removed. BASIN DIAGRAM (fill is the 61anky) Permanent Pool Elevation 20.0 Sediment Removal Elevation 15.5 75% ------------------------- T ----- Bottom Elevation 14.0 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 SW U-102 Version 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: Daniel C. Koscher Title: manager/member Address: 2839 Paces F Phone: 770-437 Signature: Date: t� GCo Road, Suite 1100, Atlanta, GA 30339 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. 1, Pl( lT( (Y1S a Notary Public for the State of / County of do hereby certify that l6r� f) Personally appeared before me this (e)--1- day of , c)C0lp and acknowledge the due Execution of the foregoing wet detention basin maintenance requirements. Witness my hand and official seal. NOTARY PUBLIC, DOU(-' COUNTY, GA MY Co1MISSION [1; :;;.'.'; ,,.;:;F' 1000 SEAL Signature 1�k_e4� My commission expires Form SWU-102 Version 3.99 Page 4 of 4 State Stormwater Management Systems Permit No SW8 970936 TO: Linda Lewis, Environmental Engineer NC DENR/Division of Environmental Management Water Quality Section 127 Cardinal Drive Extension Wilmington, NC 28405-3845 RE: Clear Water Place @ Winding River Brunswick, NC ESP Project No. UC10.400 Engineer's Certification 1, C. Lawrence Sneeden, Jr., P.E. , as a duly registered Professional Engineer in the State of North Carolina, having been authorized to observe (periodically, weekly, full -time) the construction of the project, Clear Water Place @ Winding River (Project) for Bluegreen Carolina Land, LLC (Project Owner) hereby state that, to the best of my abilities, due care and diligence were 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. Required items to be checked for this certification to be considered complete are on page 2 of this form. Noted deviations from approved plans and specifications: �• SEE ATTgcNEo cNEc,tcisr 2, OuTc.ET OF-fricC lS 2.S"Sq��IxE� k.7' O/AMETEk L EvEt S('i�`%tG c're aN ou7 c.ET �r EI�eOE/l �°.•`°�'(N CA1?%AA L� 3. �% °•°......... P, q• LJ/,L�K-tOc�tl. :� �Q V`^ Signature �.��/�/ g�SEAI(.° Registration No. 10972 g• 10972 Date 11/06/06 •.,PFNCE SNE-� RECEIVED NOV 0 7 2006 DWQ PROJ # Certification Requirements: (AC 10,4-0o �• Certification Requirements: 2 G�E// l ►`- V ri l� (L� C� �a �o �cs 1. The drainage area to the system contains approximately the permitted acreage. Gas 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. SEE Ar-rAcm6v As-Bvrcr c�J 5. The outlet structure is located per the approved plans. pi 6. Trash rack is provided on the outlet/bypass structure. &0 -rR9J14 ryAcr ~ OUTCC-7 e'R4Fic6 7. All slopes are grassed with permanent vegetation. Lu 8. Vegetated slopes are no steeper than 3:1. c c r 9. The inlets are located per the approved plans and do not cause short- circuiting of the system. cam. 10. The permitted amounts of surface area and/or volume have been provided. 11. Required drawdown devices are correctly sized per the approved plans. c� 12. All required design depths are provided. �r 13. All required parts of the system are provided, such as a vegetated shelf, and a forebay. - Femme IIAY g6Rrt '2Egvr/tEr ce- s 14. The dimensions of the system, as shown on the approved plans, are provided. S:\WQS\STORMWAT\INSPECTb cc: NCDENR-DWQ Delaney Aycock, Brunswick County Building Inspector 12 ® State Stormwater Management Systems Permit No. SW8 970936 Clear Water Place @Winding River Plantation Stormwater Permit No. SW8 970936 Brunswick County Engineer's Certification 1, J Af K Npcnn, , as a duly registered Professional Engineer in the State of North Carolina, having been authorized to observe (periodically/weekly/full time) the construction of the project, for Ct,&f, WA e2 , LL-C— (Project Owner) hereby state that, to the best of my abilities, due care and diligence was used in the observation of the project construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications. Noted deviations from approved plans and specification: Signature Registrati< Date l I /Zo i 98 SEAL SEA ' 8816 ' wTORMWATER j�ECEiVED IluunnUSUS AUG 1:21999 anal o DWO 5'3 0 ktlrt ._. _ . _, k.-Al. j i,. .r.r •'{J h..� u � y I Im