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HomeMy WebLinkAboutSW8030120_CURRENT PERMIT_20210915STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW8 p3012o DOC TYPE ® CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE 2021 O c 1 YYYYMMDD ROY COOPER Governor ELIZABETH S. B1SER Seoetsy BRIAN WR_ENN Dhv mr September 15, 2021 NORTH CAROLINA Fnvhoemmlol Quality Waterford Master Commercial Association, Inc. Attn: Robert Exum, President P.O. Box 1967 Leland, NC 29451 Subject: Permit Renewal State Stormwater Management Permit No. SW8 030120 Waterford Way Brunswick County Dear Mr. Exum: The Wilmington Regional Office received a complete 8 year Stormwater Management Permit Renewal Application for the subject project on September 7, 2021. The Division is hereby notifying you that permit SW8 030120 has been renewed on September 15, 2021, and shall be effective until February 4, 2026. For your records, please find enclosed a renewed, updated, and re -issued permit and a copy of the renewal application. 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 June 10, 2003 and most recently modified on March 8, 2016, will remain in full force and effect in accordance with the regulations set forth in Tide 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, � QQ c �`^!'"� Brian Wrenn, Director Division of Energy, Mineral and Land Resources D North Carolina Department of Environmental Qualky I Division of Energy, Mineral and land Resources r 512 North Salisbury Street 11612 Mail service Center I Raleigh North Carolina 27699-1612 �\ / 919.707.9200 State Stormwater Permit No. SW8 030120 Page 2 of 2 Enclosures: Attachment C — Permitting History Renewal Application Documents DES/ams: \\\Stormwater\Permits & Projects\2003\030120 HD\2021 09 permit 030120 cc: Mason Manhettz, PE; Cape Fear Engineering; 151 Poole Road, Suite 100; Belville, NC 28451 Matt Haley, PE; Cape Fear Engineering; 151 Poole Road, Suite 100; Belville, NC 28451 NCDEQ-DEMLR Wilmington Regional Office D En QJ/ North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources 512 North Salisbury Street I t612 Mail Service Center I Raleigh North Carolina 77699-1612 onn m u ®�+— 9L9.7079200 State Stormwater Management Systems Permit No SW8 030120 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 Waterford Master Commercial Association, Inc. Waterford Way US 17 South at Poole Road, Leland, 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 February 4, 2026, 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. This stormwater system has been approved for the management of stormwater runoff as described in Section 1.5 on page 2 of this permit. The subdivision is permitted for 5 lots, each allowed built -upon area (BUA) as follows: Lot No. Description Lot Area, ac Max. BUA, ac (sq ft) 1 1 42 1 29 56,397 sq ft 2 1 04 0.74 32,150 sq ft 3 1.88 1 43 62,500 sq ft 4 1 53 1 41 61,300 sq ft 5 Roger's Tract #4 1 28 0.98 42,479 sq ft The total drainage area is 7 15 acres and the total built -upon area to be treated in the pond is 5.85 acres or 254,826 ftZ Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. Page 1 of 6 State Stormwater Management Systems Permit No SW8 030120 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. 6. The following design elements have been permitted for this wet detention pond stormwater facility, and must be provided in the system at all times. a. Drainage Area, acres: 7.15 Onsite, ftZ. 311,454 Offsite, ftZ. None b Total Impervious Surfaces, ftZ: 254.826 Lot#1, ftZ. 56,397 Lot#2, ftZ: 32,150 Lot #3, ftZ: 62,500 Lot#4, ftZ: 61,300 Lot #5 (Roger's Tract #4), ftZ. 42,479 C. Pond Depth, feet: 7.0 d TSS removal efficiency: 90% e. Design Storm, inches 1 f. Permanent Pool Elevation, FMSL: 22.0 g. Permitted Surface Area @PP, ftZ: 10,964 In Permitted Storage Volume, ft3: 21,461 i. Storage Elevation, FMSL: 23.7 j. Controlling Orifice: 2.0"0 pipe k. Permanent Pool Volume, ft3: 38,489 I. Forebay Volume, ft3: 6,174 m. Maximum Fountain Horsepower: 1/6 n Receiving Stream / River Basin: Jackey's Creek / CPF17 o. Stream Index Number: 18-77-3 p. Classification of Water Body: "C Sw" II. SCHEDULE OF COMPLIANCE 1 The permittee is responsible for verifying that the proposed built -upon area for the entire lot, including driveways and sidewalks, does not exceed the allowable built -upon area. Once the lot transfer is complete, the built -upon area may not be revised without approval from the Division of Energy, Mineral and Land Resources, and responsibility for meeting the built -upon area limit is transferred to the individual property owner. 2 If an Architectural Review Board or Committee is required to review plans for compliance with the BUA limit, the plans reviewed must include all proposed built -upon area. Any approvals given by the Board do not relieve the homeowner of the responsibility to maintain compliance with the permitted BUA limit. 3. 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. 4. 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. 5. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. Page 2 of 6 State Stormwater Management Systems Permit No. SW8 030120 6. 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. 7. 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. 8. The permittee shall at all times provide the operation and maintenance necessary to assure that all components of the permitted stormwater system function 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 side slopes d Immediate repair of eroded areas. e. Maintenance of side slopes in accordance with approved plans and specifications. f. Debris removal and unclogging of structures, orifice, catch basins and piping. g. Access to all components of the system must be available at all times. 9. 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. 10. 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 protect 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. Page 3 of 6 State Stormwater Management Systems Permit No SW8 030120 11. Prior to the sale of any lots, the following deed restrictions must be recorded: a. The following covenants are intended to ensure ongoing compliance with State Stormwater Management Permit Number SW8 030120 Mod , as issued by the Division of Energy, Mineral and Land Resources under NCAC 2H.1000. b. The State of North Carolina is made a beneficiary of these covenants to the extent necessary to maintain compliance with the Stormwater Management Permit. C. These covenants are to run with the land and be binding on all persons and parties claiming under them. d. The covenants pertaining to stormwater may not be altered or rescinded without the express written consent of the State of North Carolina, Division of Energy. Mineral and Land Resources. e. Alteration of the drainage as shown on the approved plans may not take place without the concurrence of the Division of Energy, Mineral and Land Resources f. The maximum built -upon area per lot is as follows' Lot No. Description Max. BUA, ac (sq ft) 1 1.29 56,397 sq ft 2 0.74 32,150 sq ft 3 1.43 62,500 sq ft 4 1.41 (61.300 sq ft 5 Roger's Tract #4 0.98 (42.479 sq ft) This allotted amount includes any built -upon area constructed within the lot property boundaries, and that portion of the right-of-way between the front lot line and the edge of the pavement Built upon area includes, but is not limited to, structures, asphalt, concrete, gravel, brick, stone, slate, coquina and parking areas, but does not include raised, open wood decking, or the water surface of swimming pools. g. The runoff from all built -upon areas on the lot must drain into the permitted system. This may be accomplished through providing roof drain gutters which drain to the street, grading the lot to drain toward the street, or grading perimeter swales and directing them into the pond or street. Lots that will naturally drain into the system are not required to provide these measures. h. Built -upon area in excess of the permitted amount will require a permit modification. I. Each lot within the subdivision whose ownership is not retained by the permittee, must submit a separate Offsite Stormwater Management Permit application package to the Division of Energy, Mineral and Land Resources and receive a permit prior to any construction on the lot. 11. A copy of the recorded deed restrictions must be submitted to the Division within 30 days of the date of recording the plat, and prior to selling lots. The recorded copy must contain all of the statements above, the signature of the Permittee, the deed book number and page, and the stamp/signature of the Register of Deeds. 12. 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. Page 4 of 6 State Stormwater Management Systems Permit No. SW8 030120 13. 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 14 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. III. GENERAL CONDITIONS 1. 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. 2. 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 3. 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. 4 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. The assignment or conveyance of declarant rights to another individual or entity, C. The sale or conveyance of the common areas to a Homeowner's or Property Owner's Association, subject to the requirements of NCGS 143-214.7(c2); d. Dissolution of the partnership, corporate, or LLC entity, subject to NCGS 55-14-05 or NCGS 57D-6-07 and 08; e. Bankruptcy, f Foreclosure, subject to the requirements of Session Law 2013-121; 5. 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. Page 5 of 6 State Stormwater Management Systems Permit No. SW8 030120 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. 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 15th day of September 2021. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION C iiaQQ .�F. Bnan�Uirect r Division of Energy, Mineral and Land Resources By Authority of the Environmental Management Commission Page 6 of 6 Attachment C - Permitting History Waterford Way Permit No. SW8 030120 Approval Permit BIMS Date Action Version Description of the Changes 6/10/2003 Original 1.0 Approval 2/4/2004 Modification 1.1 7/2/2007 Modification 1.2 from WDV, LLC to Waterford Master 3/3/2016 Transfer 1.3 Commercial Association, Inc. The stormwater permit boundary now includes the Rogers Tract Lot#4 (undeveloped), previously of the Magnolia Station permit (SW8 010917), now designated as Lot 5 in this permit. The addition of this lot increases the permitted drainage area and allowable built -upon area (BUA) in the permit. Please note that the permittee must submit a separate Offsite Stormwater Management Permit application 3/8/2016 Modification 1.4 package to the Division and receive a permit prior to any construction on this lot. Minor changes to the pond, such as raising the permanent pool and enlarging the orifice diameter on the outlet structure, are required to handle the additional BUA. All permitted BUA is being allocated into offsite permits for each of five (5) lots, which includes Lot 1 (same as previous) and new Lots 2, 3, 4, & 5 (Rogers Tract Lot #4). 9/15/2021 Renewal 2.0 Permit Number: -:5A) YZU0 / 6�? 0 (to be provided by DWQ) Drainage Area Number: Wet Detention Basin Operation and Maintenance Agreement I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a known set location. Any deficient BMW elements noted in the inspection will be corrected, repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and the removal efficiency of the BMP. 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 ® does not incorporate a vegetated filter at the outlet. This system (check one): ❑ does ® does not incorporate pretreatment other than a forebay. Important maintenance procedures: - Immediately after the wet detention basin is established, the plants on the vegetated shelf and perimeter of the basin should be watered twice weekly if needed, until the plants become established (commonly six weeks). - No portion of the wet detention pond should be fertilized after the first initial fertilization that is required to establish the plants on the vegetated shelf. - Stable groundcover should be maintained in the drainage area to reduce the sediment load to the wet detention basin. - If the basin must be drained for an emergency or to perform flushing of sediment through the emergency drain should ber;N 0 �' maximum extent practical. 0 2U10 — Once a year, a dam safety expert should inspect the embank BY: Afterthe wet detention pond is established, it should be inspected once a monthan -- within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance should be kept in a known set location and must be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. BMP element Potentialproblem: How I will remediate theproblem: The entire BMP Trash/debris is present. Remove the trash/debris. The perimeter of the wet Areas of bare soil and/or Regrade the soil if necessary to detention basin erosive gullies have formed. remove the gully, and then plant a ground cover and water until it is established. Provide lime and a one-time fertilizer application. Vegetation is too short or too Maintain vegetation at a height of long. I approximately six inches. Form SW401-Wet Detention Basin O&M-Rev.4 Page 1 of 4 Permit Number: (Io be provided by DWQ) Drainage Area Number: BMP element: Potentialproblem: How I will remediate theproblem: The inlet device: pipe or The pipe is clogged. Unclog the pipe. Dispose of the swale sediment off -site. The pipe is cracked or Replace the pipe. otherwise damaged. Erosion is occurring in the Regrade the swale if necessary to swale. smooth it over and provide erosion control devices such as reinforced turf matting or riprap to avoid future problems with erosion. The forebay Sediment has accumulated to Search for the source of the a depth greater than the sediment and remedy the problem if original design depth for possible. Remove the sediment and sediment storage. dispose of it in a location where it will not cause impacts to streams or the BMP. Erosion has occurred. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems. Weeds are present. Remove the weeds, preferably by hand. If pesticide is used, wipe it on the plants rather than spraying. The vegetated shelf Best professional practices Prune according to best professional show that pruning is needed practices to maintain optimal plant health. Plants are dead, diseased or Determine the source of the dying. problem: soils, hydrology, disease, etc. Remedy the problem and replace plants. Provide a one-time fertilizer application to establish the ground cover if a soil test indicates it is necessary. Weeds are present. Remove the weeds, preferably by hand. If pesticide is used, wipe it on the plants rather than spraying. The main treatment area Sediment has accumulated to Search for the source of the a depth greater than the sediment and remedy the problem if original design sediment possible. Remove the sediment and storage depth. dispose of it in a location where it will not cause impacts to streams or the BMP. Algal growth covers over Consult a professional to remove 50% of the area. and control the algal Eowth. Cattails, phragmites or other Remove the plants by wiping them invasive plants cover 50% of with pesticide (do not spray). the basin surface. 2:__CEAiE_ JAN 0 7 2013 Form SW401-Wet Detention Basin O&M-Rev.4 rY. age 2 of 4 Permit Number: (to be provided by DWQ) Drainage Area Number: BMP element. Potential roblem: How I will remediate theproblem: The embankment Shrubs have started to grow Remove shrubs immediately. on the embankment. Evidence of muskrat or Use traps to remove muskrats and beaver activity is present. consult a professional to remove beavers. A tree has started to grow on Consult a dam safety specialist to the embankment. remove the tree. An annual inspection by an Make all needed repairs. appropriate professional shows that the embankment needs repair. if applicable) The outlet device Clogging has occurred. Clean out the outlet device. Dispose of the sediment off -site. The outlet device is damaged I Repair or replace the outlet device. The receiving water Erosion or other signs of Contact the local NC Division of damage have occurred at the Water Quality Regional Office, or outlet. the 401 Oversight Unit at 919-733- 1786. 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 5.25 feet in the main pond, the sediment shall be removed. When the permanent pool depth reads 33:0 feet in the forebay, the sediment shall be removed. BASIN DIAGRAM (fill in the blanks) Sediment Removal E\. 19.0' 75% 25%( Bottom Eleva[io 18.0' ---- I FOREBAV Form SW401-Wet Detention Basin O&M-Rev.4 Permanent Pool Elevation 22.0' 75% Sediment Removal Elevation 16.75' Bottom Elevation MAIN POND JAM 0 7 20@ BY: Page 3 of 4 25% / Permit Number: (to be provided by DWQ) I acknowledge and agree by my signature below that 1 am responsible for the performance of the 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. Project name:Waterford Way BMP drainage area number: Print Address:P.O. Box 1967 Wilmington, NC 28402 Phone:910-392-9325 Signature:_�jf—� 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. day of S forgoing seal, 9 W`gr p( KEIVIV V/iii gy,........,, �,� . 1 OTAq Zt ••;At/BLIG V ��iiy9��VEFt G� SEAL r1L a Notary Public for the State of y of , do hereby certify that personally appeared before me this ,k_1L and acknowledge the due execution of the requirements. Witness my hand and official My commission expires 3-ZI-17- JAN o 7 2G13 AV. Form SW401-Wet Detention Basin O&M-Rev.4 Page 4 of 4 DEMLR USE ONLY Date Re eiv d Fee Paid Permit Number ci NC DEQ Division of Energy, Mineral and Land Resources STATE STORMWATER: PERMIT RENEWAL APPLICATION FORM 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 030120 2. Project name: Waterford Way 3. Project street address: Olde Waterford Way City: Leland ZIP : 28451 4. What, if any, changes have been made to the project as permitted? County: Brunswick 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., https://deg.ne.goy/about/divisions/energv- mineral-land-resources/enemy-minera I-land-rides/stormwater-program/post-construction. 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://deci.nc.gov/about/divisions/energv-mineral-land- resources/energv-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: Waterford Master Commercial Association, Inc. 2. Signing Official's Name: Robert Exum 3. Signing Official's Title: President 4. Mailing Address: P.O. Box 1967 City: Wilmington State: NC ZIP 28402 5. Street Address: 503 Olde Waterford Way City: Leland State: NC ZIP: 28451 6. Phone: 9(� 392-9325 Email: bertexum(rDaol.com SEP 0 7 2021 BY: 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/ORW). 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: MN 1. A permit application processing fee of $505.00 payable to NCDEQ. M N 2. One original signed hard copy and one electronic copy of this completed form. The signing official named on this application to represent the current permittee must meet one of the following: a. Corporation — a principle executive officer of at least the level of vice-president; b. Limited Liability Company (LLC) — a manager or company official as those terms are defined in G.S. 57D "North Carolina Limited Liability Company Act;" c. Public Entity — a principal executive officer, ranking official, or other duly authorized employee; d. Partnership or limited partnership — the general partner; e. Sole proprietor; or f. Letter of authorization signed by one of the signatories noted in a — e above authorizing the signature of another entity. Nh 3. One hard copy and one electronic copy of recorded documents required by the original permit that have not yet been received by DEMLR, including: deed restrictions, protective covenants, condominium/planned community declaration and easements. If the project has been built, include documentation that the maximum BUA per lot or maximum total BUA has not been exceeded. If the project has not been built, include a signed agreement that the final recorded deed restrictions and protective covenants will be submitted at a later date. M M 4. Agreements, Please select one: I have a copy of the current recorded O&M Agreement for all SCMs, and I will continue to keep this on file with the permit; or ❑ I do not have a copy of the current recorded O&M Agreement for all SCMs and am requesting a copy be sent to me. I agree to keep this on file with the permit. MM 5. De$ignerCertifications, 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. MM 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). https://www.sosnc.gov/online services/search/by title/ Business Reoistration 111112121 Stormwater Permit Renewal Application Form Page 2 of 3 May 11, 2018 D* PERMITTEE'SCERTIFICATION o6eAC (n Ex � vw , the person legally responsible for the permit, certify that I have a copy of the Permit 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, correct and complete. Signature: KJW Gn k'• Date: 9.3" NOTARI7-ATION: County of that a Notary Public forthe State of do hereby certify ` eA personally appeared before me this the `S day of20 r3 and acknowledge the due execution of the forgoing instrument. Witness my hand and official seal, (Notary Seal) Notary Signature: My commission. expires I Q 1 a�rzy NOTARY tp COMMI MV SSION EXPIRES 309/2024 U 'UBLIG A":' SEP 0 7 2021 Stormwater Permit Renewal Application Form Page 3 of 3 May 11, 2018 Permit No �`�✓'�" /CJJ O V j (to be proMed by DW17) NWENR 020E W ATe9 0GAG o STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM WET DETENTION BASIN SUPPLEMENT This form must be filled out, printed and submitted. The Required Items Checklist (Part /it) must be printed, filled old and submitted along with all of the required information. L7P,RoErrimmGATIoN Project name Waterford Way Contact person Robert Fxum Phone number (910) 392-9325 Dale 11412016 Drainage area number 1 a7DESIGN NF,ORMATION Site Characteristics Drainage area 311,454 ftz . Impervious area, post -development 254,826 ftz %impervious 81.82 % Design rainfall depth 1.0 in Storage Volume: Non -SA Waters Minimum volume required Volume provided Storage Volume: SA Waters 1.5" runoff volume Pre -development 1-yr, 24-hr runoff Post -development 1-yr, 24-hr mnofl Minimum volume required Volume provided Peak Flow Calculations Is the preipost control of the 1yr 24hr storm peak flow required? 1-yr, 24-hr rainfall depth Rational C, predevelopment Rational C, post -development Rainfall intensity: 1-yr, 24-hr storm Pre -development 1-yr, 24-hr peak flow Post -development 1-yr, 24-hr peak flow Pre/Post 1-yr, 24-hr peak flow control Elevations Temporary pool elevation Permanent pool elevation SHWT elevation (approx. at the perm, pool elevation) Top of lOvegetated shelf elevation l V 3 ) Bottom of 10vegetated shelf elevation( b' ) Sediment cleanout, top elevation (boge1weLpend) Sediment cleanout, bottom elevation Sediment storage provided Is there additional volume stored above the state -required temp. pool? Elevation of the top of the additional volume 20,405 ft3 21,461 ft3 OK, volume provided is equal to or in excess of volume required. ft3 ft3 ft3 ft3 ft3 (Y or N) in rA IA. rv_QJS c\ limitless) limitless) inmr N/A ft3/sec !�/� p �� G 1"1_IGJ Y�%J 1 N/A ft3lsec #VALUEI fl3lsec 23.70 fmsl 22.00 fmsl NIA hmsl OL_ 8C d U9.1 �9 22.00 fmsl 21.fmsl JAN 01 20 J 16.75 75 (msl 15.00 fmsl 1.75 If BY:- Y (Y or N) 23.7 fmsl OK Form SW4e1-Wel Detentwn Basin-Rev.9-4A8/12 Pans I. & 11. Design Summary, Page 16 o/ 18 I Permit No no be Pmwded by DWQ) aIDE9cN INFORMATION Surface Areas Area, temporary pool 13,975 ft' Area REQUIRED, permanent pool 10,870 ft SAIDA ratio 3.49 (unittess) Area PROVIDED, permanent pool, Ap,,,,_,, 10,964 fl` OK Area, bottom of 10 vegetated shelf, A,, ( U 8,294 ft Area, sediment deanout, top elevation (bottom of pond), A,., 1,690 ft Volumes Volume, temporary pool 21,461 ft' OK Volume, permanent pool, V.-sad 38,489 ft' Volume, forebay (sum of forebays if more than one forebay) 6,174 111 Forebay %of permanent pod volume 16.0% % Insufficient fombay volume. SAIDA Table Data Design TSS removal 90 % Coastal SAIDA Table Used? Y (Y or N) Mountain/Piedmont SAIDA Table Used? N (Y or N) SAIDA ratio 3.49 (unittess) 10t�91—y C7(PPRA`IL'3�� Average depth (used in SAIDA table): Calculation option 1 used? (See Figure 10-2b) 7 (Y or N) Volume, permanent pool, Vpa . 38,489 ft' Area provided, permanent pool, A.,, 10,964 ft Average depth calculated it Need 3 It min. Average depth used in SAIDA, d„, (Round to nearest 0.5ft) ft Calculation option 2 used? (See Figure 10-21g) (Y or N) Area provided, permanent pool, A.,, 10,964 ft Area, bottom of 10ft vegetated shelf, A, 8,294 ft Areal, sediment deanout, top elevation (bottom of pond), AW-PaA 1,690 ft 'Depth' (distance b/w bottom of 1 Oft shelf and top of sediment) 4.25 it Average depth calculated It Average depth used In SAIDA, J., (Round to down to nearest 0 5ft) ft Drawdown Calculations Dmwdown through onfice? Y (Y or N) Diameter of orifice (ft circular) 2.00 In Area of odfice (if-noncircular) in' , Coefficient of discharge (Ca) 0.60 (unitiess) Driving head (Ho) 0.57 It Drawdown through weir N (Y or N) Weir type (undless) Coefficient of discharge (C.) (undess) Length of weir (L) It Driving head (H) It Pre -development 1-yr, 24-hr peak flow NIA ft3/sec Post -development 1-yr, 24-hr peak flow NIA ft3laec Storage volume discharge rate (through discharge orifice or weir) 008 ft3/sec Storage volume drewdown time 3.14 days OK, draws down In 2-5 days. Add'dional Information Vegetated side slopes 3 :1 OK E C E O $,y E� Vegetated shelf slope 6 :1 Insufficient shelf slope. Vegetated shelf width 6.0ft Insufficient shelf length. ry�v JAN O 2Or Length of flowpath to width ratio 3 :1 OK i.) Length to width ratio 30 1 OK Trash rack for overflow & orifice? Y (Y or N) OK BY: Freeboard provided 2.3 ft OK Vegetated filter provided? N (Y or N) OK Recorded drainage easement provided? Y (Y or N) OK Capures all runoff at ultimate build -out? Y (Y or N) OK Drain mechanism for maintenance or emergencies is: Portable Pump Form SW401-Wet Detention Basm-Rev 9-4/18112 Parts I. 8 11 Design Summary, Page 17 of 18 Permit (to be provided by DWQ) Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Page/ Plan Initials Sheet No. 1. Plans (1" - 50' or larger) of the entire site showing: - Design at ultimate build -out, - Off -site drainage (if applicable), - Delineated drainage basins (include Rational C coefficient per basin), - Basin dimensions, - Pretreatment system, - High flow bypass system, - Maintenance access, - Proposed drainage easement and public right of way (ROW), - Overflow device, and - Boundaries of drainage easement. ( 2. Partial plan (1" = 30' or larger) and details for the wet detention basin showing: - Outlet structure with trash rack or similar, - Maintenance access, - Permanent pool dimensions, - Forebay and main pond with hardened emergency spillway, - Basin cross-section, - Vegetation specification for planting shelf, and - Filter strip. 2 3. Section view of the wet detention basin (1" = 20' or larger) showing: - Side slopes, 3:1 or lower, - Pretreatment and treatment areas, and - Inlet and outlet structures. 4. If the basin is used for sediment and erosion control during construction, clean out of the basin is specified on the plans prior to use as a wet detention basin. VNA, :) 5. A table of elevations, areas, incremental volumes & accumulated volumes for overall pond and for forebay, to verify volume provided. 6. A construction sequence that shows how the wet detention basin will be protected from sediment until the entire drainage area is stabilized. r CPILSS 7. The supporting calculations. 8. A copy of the signed and notarized operation and maintenance (0rin reemen 9. A copy of the deed restrictions (if required). AN 0 7 20ii Yt 10. A soils report that is based upon an actual field investigation, soil ad infiltration tests. . ounty soil maps are not an acceptable source of soils information. B Form SW401-Wet Detention Basm-Rev.9-4/18/12 Part III. Required Items Checklist, Page 18 of 18 State Stormwater Management Systems Permit No. SW8 030120 Mod Waterford Way Page 1 of 2 Stormwater Permit No. SW8 030120 �^ ` lwt Brunswick County iahloo Designer's Certification I, as a duly registered tow so 2 tN in the State of North Carolina, having been authorized to observe enodi Iy/weekly/full time) the construction of the project, W�Vp wt '!J (Project) ASSoCAArllc4, Wt, 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 are a part of this Certification. Noted deviations from approved plans and specifications: SEAL Signature Registration Number OS&615 pQ oFEssio..l,, Date l2- to -I Lo SEAL r 038615 T yFW'f • Y�P ECEJVE DECO 7 2013 Page 9 of 10 State Stomrwater Management Systems Permit No. SW8 030120 Mod Certification Requirements: Page 2 of 2 X1. The drainage area to the system contains approximately the permitted acreage. X2. The drainage area to the system contains no more than the permitted amount of built -upon area. X 3. All the built -upon area associated with the project is graded such that the runoff drains to the system. \X 4. All roof drains are located such that the runoff is directed into the system. 1� 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. A-8. All slopes are grassed with permanent vegetation. 9. Vegetated slopes are no steeper than 3:1. X 10. The inlets are located per the approved plans and do not cause short- circuiting of the system. X11. The permitted amounts of surface area and/or volume have been provided. X 12. Required drawdown devices are correctly sized per the approved plans. 13. All required design depths are provided. _V14. All required parts of the system are provided, such as a vegetated shelf, a forebay, and the vegetated filter. X 15. The required dimensions of the system are provided, per the approved plan. cc: NCDENR-DEMLR Regional Office Brunswick County Building Inspections ECEIVE DEC 0 7 2016 BY: Page 10 of 10 ?� A High Density Commercial Subdivisions Deed Restrictions & Protective Convenances In accordance with Title 15 NCAC 2H.1000 and S.L. 2006-246, the Management Regulations, deed restrictions and protective covenants are required for High Density Commercial Subdivisions where lots will be subdivided and sold and runoff will be treated in an engineered stormwater control facility. Deed restrictions and protective covenants are necessary to ensure that the development maintains a built -upon area consistent with the design criteria used to size the stormwater control facility. I, Robert Exum , acknowledge, affirm and agree by my signature below, that I will cause the following deed restrictions and covenants to be recorded prior to the sale of any lot within the project known as Waterford Way The following covenants are intended to ensure ongoing compliance with State Stormwater Management Permit Number SW8 030120 , as issued by the Division of Energy, Mineral and Land Resources under the Stormwater Management Regulations. 2. The State of North Carolina is made a beneficiary of these covenants to the extent necessary to maintain compliance with the stormwater management permit. 3. These covenants are to run with the land and be binding on all persons and parties claiming under them. 4. The covenants pertaining to stormwater may not be altered or rescinded without the express written consent of the State of North Carolina, Division of Energy, Mineral and Land Resources. 5. Alteration of the drainage as shown on the approved plan may not take place without the concurrence of the Division of Energy, Mineral and Land Resources. 6. The maximum allowable built -upon area per lot is See Below square feet. *Note: If the BUA per lot varies, please substitute the following statement for the one above and provide a complete listing of the proposed BUA for each lot: The maximum built -upon area per lot, in square feet, is as listed below: Lot # BUA Lot # BUA Lot # BUA Lot # BUA Lot # BUA Roger's 1 56,397 2 32,150 3 62,500 4 61,300 Tract#4 42,479 This allotted amount includes any built -upon area constructed within the lot property boundaries, and that portion of the right-of-way between the front lot line and the edge of the pavement. Built upon area includes, but is not limited to, structures, asphalt, concrete, gravel, brick, stone, slate, coquina and parking areas, but does not include raised, open wood decking, or the water surface of swimming pools. 7. All runoff from the built -upon areas on the lot must drain into the permitted system. This may be accomplished through a variety of means including roof drain gutters which drain to the street, grading the lot to drain toward the street, or grading perimeter swales to collect the lot runoff and directing them into a component of the stormwater collection system. Lots that will naturally drain into the system are not required to provide these additional measures. 8. The owner of each lot, whose ownership is not retained by the permittee, is required to submit a separate stormwater permit application to the Division of Energy, Mineral and Land Resources and receive a permit prior to construction. 9. The project and each lot will maintain a 30" foot wide vegetatr!b pervious areas and surface waters. **50 foot for projects located in the 20 coastal counties. Jq� U % 2013 Form DRPC-1 Rev.2 05Nov2009 Page 1 of 2 BY: High Density Commercial Subdivisions Deed Restrictions & Protective Convenances State of do hereby certify that' QUeAt U. before me this the - 4 day of County of the a execution of the foregoing instrument. Witness 'Signature ? My Commission expires J^Z a Notary Public in the _personally appeared 20,ff4_, and acknowledge my hand and official seal, SEA --- OFFICIAL SEAL JNotary Public - North Carolina EZ-11-k NEW HANOVER COUN YTY SCOTi KENNEDY, JR. Form DRPC-1 Rev.2 05Nov2009 Page 2 of 2