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HomeMy WebLinkAboutSW7110605_CURRENT PERMIT_20120104STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW DOC TYPE � CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE DOC DATE WYYMMDD AG'�A �0.'R0 NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Charles Wakild, P. E. Dee Freeman Governor Director Secretary January 4, 2012 Mr. Kip Peregoy, General Manager Albemarle Plantation Holdings, LLC One Plantation Drive Hertford, NC 27944 Subject: Stormwater Permit No. SW7110605 Albemarle Plantation — Waterleaf Section High Density Subdivision Wet Pond Project Perquimans County Dear Mr. Peregoy: The Washington Regional Office received a complete Stormwater Management Permit Application for Albemarle Plantation — Waterleaf Section on October 24, 2011. Staff review of the plans and specifications has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Session Law 2008-211 and Title 15A NCAC 2H.1000. We are forwarding Permit No. SW7110605, dated January 4, 2012, for the construction of the project. This permit shall be effective from the date of issuance until January 4, 2020, and shall be subject to the conditions and limitations as specified therein. Please pay special attention to the Operation and Maintenance requirements in this permit. Failure to establish an adequate system for operation and maintenance of the stormwater management system will result in future compliance problems. If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing upon written request within thirty (30) days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless such demands are made this permit shall be final and binding. If you have any questions, or need additional information concerning this matter, please contact Scott Vinson, or me at (252) 946-6481. Sincerely, HHodge .Regional Supervisor Surface Water Protection Section AHlsv: S:IWQSISTORMWATER1SW7110605 cc: Mark Bissell, PE — Bissell Professional Group--M&i O Perquimans County Inspections ANashington Regional Office North Carolina Division or Water Quality Internet www,ncwalerqualitv.or� 943 Washington Square Mall Phone: 252-946-6481 One � W ash i ngton, NC 27 889 F252-946-9215 NorthCarolina An Equal Opportunity/Affirmative Action Employer — 50% Recycled110% Post Consumer Paper naturally State Stormwater Management Systems Permit No. SW7110605 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY STATE STORMWATER MANAGEMENT PERMIT HIGH DENSITY SUBDIVISION 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 Albemarle Plantation Holdings, LLC Albemarle Plantation -- Waterleaf Section South corner of Holiday Island Rd. & Matthews Rd., Bethel, Perquimans County FOR THE construction, operation and maintenance of a wet detention pond in compliance with the provisions of Session Law 2008-211 and 15A NCAC 2H .1000 (hereafter referred to as the "stormwater rules') and the approved stormwater management plans and specifications and other supporting data as attached and on file with and approved by the Division of Water Quality and considered a part of this permit. This permit shall be effective from the date of issuance until January 4, 2020 and shall be subject to the following specified conditions and limitations: I. DESIGN STANDARDS 1. This, permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data. 2. This stormwater system has been approved for the management of stormwater runoff as described on page 3 of this permit. The subdivision is permitted for 87 lots, each limited to a maximum amount of built -upon area as indicated on the attachment to this permit. 3. The runoff from all built -upon area within the permitted drainage area of this project must be directed into the permitted stormwater control system. 4. The built -upon areas associated with this project shall be located at least 50 feet landward of all perennial and intermittent surface waters. Page 2of9 State Stormwater Management Systems Permit No. SW7110605 ftw 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. b. C. d. e. f. h. i. k. 1. m n. o. P. q- Drainage Area, acres: Total Impervious Surfaces, ft2: Average Pond Design Depth, feet TSS removal efficiency: Design Storm: Permanent Pool Elevation, FMSL: Permitted Surface Area @PP ft2: Permitted Storage Volume, ftJ: Storage Elevation, FMSL. Predevelopment 1 year. 24 hour: Post development 1 year 24 hour: Controlling Orifice: Permanent Pool Volume, ft3 Maximum Fountain Horsepower: Receiving Stream / River Basin: Stream Index Number: Classification of Water,Body: II. SCHEDULE OF COMPLIANCE 50.84 973,126 4.50 avg. 90% 1.50 6.50 157,167 (75,740sf min. required) 134,550 at temporary pool 7.30 1.13 cfs 3.30 cfs (0.49 cfs from pond outlet) 6.00" O pipe 667,501 2 hp Yeopim Creek / Pasquotank 30-8-4—(2) "SC" No homeowner/lot owner/developer shall fill irf, alter, or pipe any drainage feature (such as swales) shown on`the approved plans as part of the stormwater management system without submitting a revision to the permit and receiving approval from the Division. 2. The permittee is responsible for verifying that the proposed built -upon area for the entire lot does not exceed the maximum allowed by this permit. Once the lot transfer is complete, the built -upon area may not be revised without approval from the Division of Water Quality, and responsibility for meeting the built -upon area limit is transferred to the individual property owner. 3. If an Architectural Review Board or Committee is set up by the permittee 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. 4. 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. 5. 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. 6. The permittee shall submit to the Director and shall have received approval for revised plans, specifications, and calculations prior to construction, for any modification to the approved plans, including, but not limited to, those listed below: a. Any revision to the approved plans, regardless of size. b. Project name change. C. Transfer of ownership. Page 3 of 9 State Stormwater Management Systems Permit No. SW7110605 d. Redesign or addition to the approved amount of built -upon area. e. Further subdivision, acquisition, or sale of all or part of the project area. The project area is defined as all property owned by the permittee, for which Sedimentation and Erosion Control Plan approval or a CAMA Major permit was sought. f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. 7. The permittee shall submit for approval, final site layout and grading plans for any permitted future development areas shown on the approved plans, prior to construction. 8. 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. 9. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 10. 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. 11. 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. 12. The permittee shall at all times provide the operation and maintenance necessary to assure that all components of the permitted stormwater system function at optimum efficiency. The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited to: a. Semiannual scheduled inspections (every 6 months). b. Sediment removal. c. Mowing and re -vegetation of side slopes. d. Immediate repair of eroded areas. e. Maintenance of side slopes in accordance with approved plans. 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. 13. Records of maintenance activities must be kept by the permittee. The records will indicate the date, activity, name of person performing the work and what actions were taken. 14. This permit shall become void unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data. 15. Prior to the sale of any lot, the following deed restrictions must be recorded: a. The following covenants are intended to ensure ongoing compliance with State Stormwater Management Permit Number SW7110605, as issued by the Division of Water Quality under NCAC 2H.1000. Page 4 of 9 State Stormwater Management Systems Permit No. SW7110605 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 Water Quality. e. Alteration of the drainage as shown on the approved plans may not take place without the concurrence of the Division of Water Quality. f. The maximum built -upon area per lot is (see attachement) square feet. 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. All runoff 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. If permeable pavement credit is requested, the property owner must submit a request, with supporting documentation, to the permittee and receive approval from the Division prior to construction of BUA. 16. 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. 17. Prior to transfer of the permit, the stormwater facilities will be inspected by DWQ personnel. The facility must be in compliance with all permit conditions. Any items not in compliance must be repaired or replaced to design condition prior to the transfer. Records of maintenance activities performed to date will be required. 18. Decorative spray fountains will be allowed in the stormwater treatment system, subject to the following criteria: a. The fountain must draw its water from less than 2' below the permanent pool surface. b. Separated units, where the nozzle, pump and intake are connected by tubing, may be used only if they draw water from the surface in the deepest part of the pond. c. The falling water from the fountain must be centered in the pond, away from the shoreline. d. The maximum horsepower for the fountain's pump is based on the permanent pool volume. The maximum pump power for a fountain in this pond is 2 hp. 19. If permeable pavement credit is desired, the permittee must submit a request to modify the permit to incorporate such language as required by the Division of Water Quality. The request to modify must include a soils report identifying the type of soil, the Seasonal High Water Table elevation and the infiltration rate. Upon the successful completion of a permit modification, the individual lot owners Page 5 of 9 State Stormwater Management Systems Permit No. SW7110605 that request to utilize permeable pavements must submit the necessary forms and documentation to the permittee and receive approval prior to construction of the permeable pavement. 20. A copy of the approved plans and specifications shall be maintained on file by the Permittee at all times. III. GENERAL CONDITIONS This permit is not transferable except after notice to and approval by the Director. In the event of a change of ownership, or a name change, the permittee must submit a completed Name/Ownership Change form signed by both parties, to the Division of Water Quality, accompanied by the supporting documentation as listed on page 2 of the form. The approval of this request will be considered on its merits and may or may not be approved. 2. The permittee is responsible for compliance with all permit conditions until such time as the Division approves a request to transfer the permit. 3. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to enforcement action by the Division of Water Quality, in accordance with North Carolina General Statute 143-215.6A to 143-215.6C. 4. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances, which may be imposed by other government agencies (local, state, and federal) having jurisdiction. 5. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems. 6. The permittee grants DENR Staff permission to enter the property during normal business hours for the purpose of inspecting all components of the permitted stormwater management facility. 7. The permit issued shall continue in force and effect until revoked or terminated. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a permit modification, revocation and re -issuance or termination does not stay any permit condition. 8. Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual. 9. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. 10. 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 as allowed by the laws, rules and regulations contained in Session Law 2008- 211, Title 15A NCAC 2H.1000, and NCGS 143-215.1 et.al. 11. The permittee shall notify the Division in writing of any name, ownership or mailing address changes at least 30 days prior to making such changes. Page 6of9 State Stormwater Management Systems Permit No. SW7110605 12. This permit shall be effective from the date of issuance until January 4, 2020. Application for permit renewal shall be submitted 180 days prior to the expiration date of this permit and must be accompanied by the processing fee. Permit issued this the 4th day of January, 2012. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION for Division of Water Quality By Authority of the Environmental Management Commission Permit Number SW7110605 Page 7 of 9 f i` State Stormwater Management Systems Permit No. SW7110605 Albemarle Plantation — Waterleaf Section Page 1 of 2 Stormwater Permit No. SW7110605 Perguimans County Designer's Certification I, , as a duly registered in the State of North Carolina, having been authorized to observe (periodically/weekly/full time) the construction of the project, (Project) for (Project Owner) hereby state that, to the best of my abilities, due care and diligence was used in the observation of the project construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications. The checklist of items on page 2 of this form is a part of this Certification. Noted deviations from approved plans and specifications: Signature Registration Number Date SEAL Page 8 of 9 State Stormwater Management Systems Permit No. SW7110605 I Certification Requirements: Page 2 of 2 1. The drainage area to the system contains approximately the permitted acreage. 2. The drainage area to the system contains no more than the permitted amount of built -upon area. 3. All the built -upon area associated with the project is graded such that the runoff drains to the system. _4. All roof drains are located such that the runoff is directed into the system. _5. The outlet/bypass structure elevations are per the approved plan. _6. The outlet structure is located per the approved plans. 7. Trash rack is provided on the outlet/bypass structure. 8. All slopes are grassed with permanent vegetation. 9. Vegetated slopes are no steeper than 3A . 10. The inlets are located per the approved plans and do not cause short- circuiting of the system. 11. The permitted amounts of surface area and/or volume have been provided. 12. Required drawdown devices are correctly sized per the approved plans. 13. All required design depths are provided. 14. All required parts of the system are provided, such as a vegetated shelf, a forebay, and the vegetated filter. 15. The required dimensions of the system are provided, per the approved plan. cc: NCDENR-DWQ Regional Office Perquimans County Building Inspections Page 9 of 9 4319 Albemarle Plantation - Waterleaf Section 5/23/2011 High Density Residential Subdivision Deed Restriction Calculations LOT NO. UPLAND AREA 5 . Ft AREA . Ac. 50% ALLOWABLE IMPERVIOUS COVERAGE AREA Ac. 1 18,357 0.42 9,179 0.21 2 18,547 0.43 9,273 0.21 3 18,449 0.42 1 9,224 0.21 4 18,271 0.42 9,135 0.21 5 19,584 0.45 9,792 0.22 6 25,400 0.58 12,700 0.29 7 27,428 0.63 13,714 0.31 8 28,966 0.66 14,483 0.33 9 33,409 0.77 16,705 0.38 10 28,302 0.65 14,151 0.32 11 20,588 0.47 10,294 0.24 12 23,407 0.54 11,704 0.27 13 18,254 0.42 9,127 0.21 14 17,750 0.41 8,875 0.20 15 19,668 0.45 9,834 0.23 16 20,000 0.46 10,000 0.23 17 16,863 0.39 8,432 0.19 18 17,779 0.41 8,890 0.20 19 22,125 0.51 11,063 0.26 20 21,830 0.50 10,915 0.25 21 27,861 0.64 13,931 0.32 22 32,200 0.74 16.100 0.37 23 25,588 0.59 12,794 0.29 24 20,571 0.47 10,285 0.24 25 18,384 0.42 9,192 0.21 26 19,776 0.45 9,888 0.23 27 20,576 0.47 10,288 0.24 28 19,388 0.45 9,694 0.22 29 19,826 0.46 9,913 0,23 30 23,543 0.54 11,772 0.27 31 16,702 0.38 8,351 0.19 32 20,340 0.47 10,170 023 33 21,045 0.48 10,523 0.24 34 21,752 0.50 10,876 0.25 35 17,794 0.41 8,897 0.20 36 15,005 0.34 7,503 0.17 37 15,017 0.34 7,509 0.17 38 15,017 0.34 7,509 0.17 39 15,156 0.35 7,578 0.17 40 15,429 0.35 7,715 0.18 41 15,447 0.35 7,723 0.18 42 15,031 0.35 7,516 0.17 43 15,001 0.34 7,500 0.17 44 18,531 0.43 9,266 0.21 45 16,924 0.39 8,462 0.19 46 17,185 0.39 8,592 0,20 47 17,313 0.40 8,657 0.20 48 17,619 0.40 8,810 0.20 49 18,237 0.42 9,119 0.21 50 19,169 0.44 9,585 0.22 51 19,848 0.46 9,924 0.23 52 20,181 0.46 10,090 0.23 53 20,127 0.46 10,063 0.23 54 19,579 0.45 9,789 022 ;T fl p(40.41NMA4A+ `,�111 r a lbi7ri 4319 Albemarle Plantation - Waterleaf Section 5/23/2011 r~ High Density Residential Subdivision Deed Restriction Calculations LOT NO. UPLAND AREA S . Ft. AREA Ac. 50%ALLOWABLE IMPERVIOUS COVERAGE AREA Ac. 55 17,913 0.41 8,956 0.21 56 18,294 0,42 9,147 0.21 57 19,306 0.44 1 9,653 0.22 58 21,075 0.48 10,538 0.24 59 21,638 0.50 10,819 0.25 60 19,112 0.44 9,556 0.22 61 17,524 0.40 8,762 0.20 62 16,905 0.39 8 A53 0.19 63 16,807 0.39 8,403 0.19 64 16,836 0.39 8,418 0.19 65 18,176 0.42 9,088 0.21 66 17,506 0.40 8,753 0.20 67 17,273 0.40 6,636 0.20 68 17,404 0.40 8,702 0.20 69 16,453 0.38 8,227 0.19 70 16,874 0.39 8,437 0.19 71 15,106 0.35 7.553 0.17 72 15,051 0.35 7,526 0.17 73 16,121 0.37 8,060 0.19 74 16,295 0.37 8,148 0.19 75 16,285 0.37 8,142 0.19 76 15,696 0.36 7,848 0,18 77 15,043 0,35 7,521 0.17 78 16,241 0.37 8,121 0.19 79 15,538 0.36 7,769 0.18 80 16,760 0.38 8,380 0.19 81 18,281 0.42 9,141 0.21 82 21,207 0.49 10.603 0.24 83 20;640 0,47 10,320 0.24 84 19,892 0.46 9,946 0.23 85 16,652 0.38 8,326 0.19 86 19,643 0.45 9,822 0.23 87 17,978 0.41 8,989 0.21 T6tal 1166796" '38.28' 833,932 19.14 Property Area Data Area (sf) Area (ac) Residential Lot Area: 1,667,664 38.28 Open Space Area: 451,624 10.37 Right-of-way Area: 253,525 5.82 Total Property Area: 2,372,1313 54,47 Excluded Area Data Total Coastal Wetlands Area: 0 0.00 Total Surface Water Area: 29,942 0.69 (Area within banks of. Stream) Total Excluded Area: 29,942 0.69 Coverage Data Amenity Allowance Coverage 20,000 0.46 20' wide Road Coverage: 119,294 2.74 Residential Lot Coverage: 833,832 19.14 Total Impervious Coverage: 973,126 22.34 Total Project Area: 2,342,871 53.78 % Impervious Coverage 41,54% r. d lc1 �77i. DWQ USE ONLY Date Received Fee Paid Permit Number 6 Jr© !� Applicable ules. ❑ Coastal SW - 1995 ❑Coastal SW - 2008 ❑ Ph II - Post Construction (select all that apply) ❑ Non -Coastal SW- HQW/ORW Waters ❑ Universal Stormwater Management Plan ❑ Other WQ M mt Plan: State of North Carolina �w Department of Environment and Natural Resources F! `, ",!EI"v-zT," Division of Water Quality JuN 9 2011 STORMWATER MANAGEMENT PERMIT APPLICATION FORM Thisform irray he photocopied for rise as air original j jFilr tfVI"; 1. GENERAL INFORMATION 1. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): Albemarle Plantation - Waterleaf Section 2. Location of Project (street address): South corner of the intersection of Holiday Island Rd. (NC1347) and the former Matthews Rd (NC1347)_ City:Bethel Township County:Perquimans County Zip:27944 3. Directions to project (from nearest major intersection): From the intersection of US HWY 17 and Harvey Pt. Rd. (NC1336) in Hertford, travel southeast along HarvU Pt. Rd. approx. 4.4 miles, turn right (west) on to Burgess Rd (NC1348) for approx. 0.7 miles, turn left (southk on to Holiday Island Rd. (NC1347) to arrive at the intersection noted above in approx. 1.9 miles. 4. Latitude:360 06' 02" N II. PERMIT INFORMATION: L,ongitude:760 24' 08" W of the main entrance to the project. 1. a. Specify whether project is (check one): ®New ❑Modification b.If this application is being submitted as the result of a modification to an existing permit, list the existing permit number , its issue date (if known) �, and the status of construction: ❑Not Started []Partially Completed* ❑ Completed* *provide a designer's certification Specify the type of project (check one): ❑Low Density ®High Density ❑Drains to an Offsite Stormwater System ❑Other 3. If this application is being submitted as the result of a previously returned application or a letter from DWQ requesting a state Stormwater management permit application, list the stormwater project number, if assigned, and the previous name of the project, if different than currently proposed, 4. a. Additional Project Requirements (check applicable blanks; information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748): ❑CAMA Major ❑NPDES Industrial Stormwater ®Sedimentation/Erosion Control: 36 ac of Disturbed Area 0404/401 Permit: Proposed Impacts b.If any of these permits have already been acquired please provide the Project Name, Project/Permit Number, issue date and the type of each permit: Fonn SWU-101 Version 07Jun2010 Page 1 of 6 Ill. CONTACT INFORMATION 1. a. Print Applicant / Signing Official's name and title (specifically the developer, property owner, lessee, designated government official, individual, etc, who owns the project): Applicant/ Organiza Signing Official & Title: iP FE b.Contact information for person listed in item la above: Street Address: �Nir PLAN*rATION D2. City: TTEwF©m State: AJC Zip: �9 Mailing Address (if applicable City: State: Zip: Phone: ( 252 Fax: ( 252 ) 42b-7064 Email: i!�IPDREC c),ICAL-IS �AILIePLAP-iiATiWJGOM PIease check the appropriate box. The applicant listed above is: ® The property owner (Skip to Contact Information, item 3a) ❑ Lessee* (Attach a copy of the lease agreement and complete Contact Information, item 2a and 2b below) ❑ Purchaser* (Attach a copy of the pending sales agreement and complete Contact Information, item 2a and 2b below) ❑ Developer* (Complete Contact Information, item 2a and 2b below.) 2. a. Print Property Owner's name and title below, if you are the lessee, purchaser or developer. (This is the person who owns the property that the project is located on): Property Owner/Organization: Signing Official & b.Contact information for person listed in item 2a above: Street Address: City: Mailing Address (if applicable): City: Phone: ( ) Email: State: State: Fax: Zip: Zip: 3. a. (Optional) Print the name and title of another contact such as the project's construction supervisor or other person who can answer questions about the project: Other Contact Person/ Organiza ion: Peregoy Signing Official & Title: b.Contact information for person listed in W 3a above: Mailing Address:One Plantation Drive City:Hertford State:NC Zip:27944 Phone: (252 ) 426-4653 Email:kip.pereitoy@albemarleplantation.com Fax: (252 ) 426-7054 4. Local jurisdiction for building permits: Perquimans County Point of Contact:Virgil Parrish - Building Inspector Phone #: (252 ) 426-8283 Form SWU-101 Version 07Jun2010 Page 2 of 6 IV. PROJECT INFORMATION 1. In the spate provided below, briefly summarize how the stormwater runoff will be treated. Runoff from the 87 residential lots will primarily sheet flow to adjacent property line or roadway swales. Runoff from roadways _will _directly _flow to adjoining roadway swales. Runoff will primarily be conveyed through_vegetative swales to a 4.4 acre lake located in the center of the development. Treatment is provided through the vegetative conveyances and the lake which capacity exceeds 2.5 times the 1.5" design requirements and includes aquatic vegetation around each of the lake's inlets and outlet. 2. a. If claiming vested rights, identify the supporting documents provided and the date they were approved: ❑ Approval of a Site Specific Development Plan or PUD Approval Date: ❑ Valid Building Permit Issued Date: ❑ Other: Date: b.If claiming vested rights, identify the regulation(s) the project has been designed in accordance with: ❑ Coastal SW - 1995 ❑ Ph II - Post Construction 3. Stormwater runoff from this project drains to the Pasquotank River basin. 4. Total Property Area: 54.47 acres 5. Total Coastal Wetlands Area: 0 acres 6. Total ! QatzQW- AL Area: 0.69 acres STMEAM - - - - 7. Total Property Area (4) -Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total rroject Area`:53.78 acres Total project area shall be calculated to exclude the following the normal pool of impounded structures, the area behueen the banks of streams and rivers, the area below the Normal High Water (NHW) line or Mean High Water (MHW) line, and coastal wetlands landward front the NHW (or MHW) line. The resultant project area is used to calculate overall percent built upon area (BUA). Non -coastal zoetlands landward of the NHW (or MHW) line may be included iri the total project area. 8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 41.54 9. How many drainage areas does the project have?1 (For high density, count 1 for each proposers eirgineered stormwater BMP. For low density and other projects, use 1 for the whole property area) 10. Complete the following information for each drainage area identified in Project Information item 9. If there are more than four drainage areas in the project, attach an additional sheet with the information for each area provided in the same format as below. Basin Information Drainage Area 1. Dra-inage Area _ Drainage Area _ Drainage Area _ Receiving Stream Name Yeopim Creek Stream Class * SC Stream Index Number * 30-8-4-(2) Total Drainage Area (sf) 2,214,617 On -site Drainage Area (so 2,214,617 Off -site Drainage Area (sf) 0 Proposed Impervious Area" (SO 973,126 % Impervious Area** total 43.94 Impervious** Surface Area Drainage Area 1. Drainage Area DTainage Area Drainage Area On -site Buildings/Lots (so 833,832 On -site Streets (so 119,294 On -site Parking (so 0 On -site Sidewalks (so 0 Other on -site (so 20,000 Future (so 0 Off -site (so 0 Existing BUA*** (so 0 Total (so: 973,126 Stream Class and Index Number can be determined at: lrttp://)ortal.ucdeur.or rveb/wq&s/csu/classi cations Form SWU-101 Version 07Jun2010 Page 3 of 6 * Im envious area is defined as the built upon area including, but not liruited to, buildings, roads, parking areas, siderrialks, gravel areas, etc. *** Report only that mtrount of existing BI..IA that will remain after deTeloprtrent. Do not report any existing BUA that is to be removed and which will be replaced by new BUA. 11. How was the off -site impervious area listed above determined? Provide documentation. N/A Projects in Union County: Contact DWQ Central Office staff to check if the project is located within a Threatened & Endangered Species watershed that may be subject to more stringent stormwater requirements as per NCAC 02B .0600. V. SUPPLEMENT AND O&M FORMS The applicable state stormwater management permit supplement and operation and maintenance (O&M) forms must be submitted for each BMP specified for this project. The latest versions of the forms can be downloaded from http://portal.ncdenr.org/web/wq/ws/su/bmp-manual. VI. SUBMITTAL REQUIREMENTS Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ). A complete package includes all of the items listed below. A detailed application instruction sheet and BMP checklists are available from http://portal.ricdennorg/web/wq/ws/su/statesw/forms dots. The complete application package should be submitted to the appropriate DWQ Office. (The appropriate office may be found by locating project on the interactive online map at http.ZZp.ortal.ncdenr.org/web/­wq/­ws/­su/­­giaps.) Please indicate that the following required information have been provided by initialing in the space provided for each item. All original documents MUST be signed and initialed in blue ink. Download the latest versions for each submitted application package from http://portal.ncdenr.org/web/wq/ws/su/statesw/forms does. Initials 1. Original and one cops of the Stormwater Management Permit Application Form. 2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants Uwz Form. (if required as per Part Vll below) 3. Original of the applicable Supplement Form(s) (sealed, signed and dated) and O&M agreement(s) for each BMP. 4. Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer to http://www..envheip.or&Zpagesloiiestopexpress.htm] for information on the Express program and the associated fees. Contact the appropriate regional office Express Permit Coordinator for additional information and to schedule the required application meeting.) 5. A detailed narrative (one to two pages) describing the stormwater treatment/managementfor the project. This is required in addition to the brief summary provided in the Project Information, item 1. 6. A USGS map identifying the site location. If the receiving stream is reported as class SA or the - receiving stream drains to class SA waters within'/z mile of the site boundary, include the mile radius on the map. 7. Sealed, signed and dated calculations. 8. Two sets of plans folded to 8.5" x 14" (sealed, signed, & dated), including: a. Development/Project name. b. Engineer and firm. c. Location map with named streets and NCSR numbers. d. Legend. e. North arrow. . f. Scale. - g. Revision number and dates. h. Identify all surface waters on the plans by delineating the normal pool elevation of impounded structures, the banks of streams and rivers, the MHW or NHW line of tidal waters, and any coastal wetlands landward of the MHW or NHW Iines. • Delineate the vegetated buffer landward from the normal pool elevation of impounded structures, the banks of streams or rivers, and the MHW (or NHW) of tidal waters. i. Dimensioned property/ project boundary with bearings & distances. j. Site Layout with all BUA identified and dimensioned. k. Existing contours, proposed contours, spot elevations, finished floor elevations. 1. Details of roads, drainage features, collection systems, and stormwater control measures. �µt2- twv tM iz bmm Lm12 DM 4Z Form SWU-101 Version 07.1un2010 Page 4 of 6 9 10 11 m. Wetlands delineated, or a note on the plans that none exist. (Must be delineated by a qualified person. Provide documentation of qualifications and identify the person who made the determination on the plans. n. Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations. . o. Drainage areas delineated (included in the main set of plans, not as a separate document). . p. Vegetated buffers (where required). Copy of any applicable soils report with the associated SHWT elevations (Please identify . elevations in addition to depths) as well as a map of the boring locations with the existing elevations and boring logs. Include an 8.5"xl1" copy of the NRCS County Soils map with the project area clearly delineated. For projects with infiltration BMPs, the report should also include the soil type, expected infiltration rate, and the method of determining the infiltration rate. (Infiltration Devices submitted to WiRO: Schedule a site visit for DWQ to verifil the SHK7 prior to submittal, (970) 796-7378.) D,,ArZ, aMrz A copy of the most current property deed. Deed book: 363 Page No: 504-516 For corporations and limited liability corporations (LLC): Provide documentation from the NC - Secretary of State or other official documentation, which supports the titles and positions held by the persons listed in Contact Information, item Ia, 2a, and/or 3a per NCAC 21-1.1003(e). The corporation or LLC must be listed as an active corporation in good standing with the NC Secretary of State, otherwise the application will be returned. http:/ /www.secretary.state.nc.us/CorporationsZCSearch.a_spx VII. DEED RESTRICTIONS AND PROTECTIVE COVENANTS MI., ME For all subdivisions, outparcels, and future development, the appropriate property restrictions and protective covenants are required to be recorded prior to the sale of any lot. If lot sizes vary significantly or the proposed BUA allocations vary, a table listing each lot number, lot size, and the allowable built -upon area must be provided as an attachment to the completed and notarized deed restriction form. The appropriate deed restrictions and protective covenants forms can be downloaded from http://portal.ncdenr.org/web/wq/ws/su/statesw/forms_docs. Download the latest versions for each submittal. In the instances where the applicant is different than the property owner, it is the responsibility of the property owner to sign the deed restrictions and protective covenants form while the applicant is responsible for ensuring that the deed restrictions are recorded. By the notarized signature(s) below, the permit holder(s) certify that the recorded property restrictions and protective covenants for this project, if required, shall include all the items required in the permit and listed on the forms available on the website, that the covenants will be binding on all parties and persons claiming under them, that they will run with the land, that the required covenants cannot be changed or deleted without concurrence from the NC DWQ, and that they will be recorded prior to the sale of any lot. Vill. CONSULTANT INFORMATION AND AUTHORIZATION Applicant: Complete this section if you wish to designate authority to another individual and/or firm (such as a consulting engineer and/or firm) so that they may provide information on your behalf for this project (such as addressing requests for additional information). Consulting Engineer:David M. Ryan, P.E. Consulting Firm: Bissell Professional Group Mailing Address:P.O, Box 1068 City:KiM Hawk Phone: (252 ) 261-3266 Email:dave@bisse]]Rrofessionalgroup.com Sta te: NC Zip: 27949 Fax: (252 ) 261_-1760 _ IX. PROPERTY OWNER AUTHORIZATION (if Contact Information, iterrr 2 has beery filled out, complete this Al/K section) I, (print or hjpe name of person listed in Contact Inforrrration, iterrr 2a) , certify that I own the property identified in this permit application, and thus give permission to (print or type name of person listed in Contact Information, item 1a) with (print or hjpe narrre of organization listed in Contact Information, item 1a) to develop the project as currently proposed. A copy of the lease agreement or pending property sales contract has been provided with the submittal, which indicates the party responsible for the operation and maintenance of the stormwater system. Form SWU-101 Version 07Jun2010 Page 5 of 6 As the legal property owner I acknowledge, understand, and agree by my signature below, that if my designated agent (entity listed in Contact Information, item 1) dissolves their company and/or cancels or defaults on their lease agreement, or pending sale, responsibility for compliance with the DWQ Stormwater permit reverts back to me, the property owner. As the property owner, it is my responsibility to notify DWQ immediately and submit a completed Name/Ownership Change Form within 30 days; otherwise I will be operating a stormwater treatment facility without a valid permit. I understand that the operation of a stormwater treatment facility without a valid permit is a violation of NC General Statue 143-215.1 and may result in appropriate enforcement action including the assessment of civil penalties of up to $25,000 per day, pursuant to NCGS 143-215.6. Signature: Date: I, , a Notary Public for the State of , County of , do hereby certify that before me this _ day of personally appeared and acknowledge the due execution of the application for a stormwater permit. Witness my hand and official seal, SEAL My commission expires X. APPLICANT'S CERTIFICATION I, (print or trjpe name of person listed in Contact Information, iteru 1a) certify that the information included on this permit application form is, to the best of m knowledge, correct and that the project will be constructed in conformance with the approved plans, that the required deed restrictions and protective covenants will be recorded, and that the proposed project complies with the requirements of the applicable stormwate/ rules Wder 15A NCAC 21-1.1000, SL 2006-246 (Ph. II - Post Construction) or SL 2008-211. Signature: Date: 'I I, �,C \ 151- �fr q5l Q 6 ,a Notary Public for the State of d ) No �(', ; L �4��! County of 'Pr 6 it G n S , do hereby certify that \. `� ,D ti� P g O y personally appeared v r before me this J Ii day of Cl-,�_ � and acknowledge the due execution of the application for (y � a stormwater permit. Witness my hand and official seal, i,Mtif1 x 1� aaf Notary Public Parquimans County My cornrnlsslo/ xplres 20 SEAL My commission expires . t . Form SWU-101 Version 07.iun2010 Page 6 of 6 Permit No. SW /1!0�os ;. • . .. , RECEIVED (to ba provided by DWQ) NCDENR OCT 2 4 2011 DWQ-WARO S70RMWATER 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 111) must be printed, filled out and submitted along with all of the required information. gaaF ti 0 Y EPROJECT+INFOFiAlATIOHi:rl' a yet pia: ",Iisi. F' 'u' Fis ,t� 3?'.. r Yl a% " 7�aty °� i?�u'rvf�,fY .a :.t ' r" 1� ' y '' 1' s311 Project name Albemarle Plantation -. Waterleaf Section Contact person Kip Peregoy . Phone number '(252) 426=4653 ' ' 1. Date 61212011. Rev 1012112011 ' Drainage area number ,Drainage Area #1 -,Entire developed Area of Project DESt(iN'INFORItU1TWNi'7.Lt t.:v.ti' 5RT%Tz �"I 4s Y'��rjs�'n.' �'.,�x tr:��r,~:.►.:1.v�_..s;`�x..t�s�z,�f<<.""�:�13w�' Site Characteristics Drainage area 2,214;617 rye Impervious area, post -development 1973J26 fl2 % impervious 43.94 % Design rainfall depth �, :' "1,5 in Storage Volume: Non -SA Waters Minimum volume required Volume provided Storage Volume: SA Waters 1.5" runoff volume Pre -development 1-yr, 24-hT runoff Post -development 1-yr, 24-hr runoff Minimum volume required Volume provided Peak Flow Calculations Is the pretpost control of the 1yr 24hr storm peak flow required? 1-yr, 24-hr rainfall depth Rational C. pre -development 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/Posl 1-yr, 24-hr peak flow control Elevations Temporary pool elevation Permanent pool elevation SHWT elevation (approx, at the perm, pool elevation) Top of 1 Oft vegetated shelf elevation Bottom of 10ft vegetated shelf elevation Sediment deanout, top elevation (bottom of pond) Sediment cleanout, bottom elevation Sediment storage provided Is there additional volume stored above the state -required temp. pool? Elevation of the top at the additional volume •123,318 ft3 OK -134,550 ft3 I - OK, volume provided is equal to or in excess of volume required. 'NIA ft3 I "r_ S ft3 r: ft3 ft3 I Y, (Y or N) 3.2 in 0.47 (unitless) D2MWA6n6 AQeSA d -b**,5'rZD cta;V > W 0.50 (unitless) V rr[.rZ"tCr (� 7�'rr C VAWe As[J1�tQi a 0.13 inlhr OK 4,v0'Nf>2t.y 0&#VdeM4,4Y 1.13 ftlisec 3.30 ft'Isec 2.17 h'Isec r -.7:30 fmsl ' 6.50 fmsl 7:50 fmsl .. '57.00 fmsl I. 6.00 fmsl "V5W0 fmsl 1.00 ft 1 ' Y, (Y or N) I • _f 8.5 fmsl C9 OV=ZAZ"1�1 ry snrns�y trxAe_ ,F&6U10A_,0,54-/r3 Form SW401-Wet Detention Basin-Rev.8-9117109 Parts 1. 8 It. Design Summery, Page 1 of 2 Permit ti (to be provided by DWO) II:'iDPSIGN!INFORMATi^u1r .::;'�' ` .+ wy« d~os r<gq� r �7!!:; ;. , ,}� ,�,.;n k!s�z� 7 Itn.�ss �_+?"r �:f�W + , :fi .5+�k .t �iT: w.�...fi:. ,..i_ _'v u r _ ! Surface Areas Area, temporary pool 179,207 ft' Area REQUIRED, permanent pool 75,740 ft' SAIDA ratio 3.42 (unitless) Area PROVIDED, permanent pool, Ape- P, 157,167 ft` Area, bottom of 1 Oft vegetated shelf, Aw_,,n 143.596 ft' Area, sediment cleanout, top elevation (bottom of pond), Ab,,_pd 119.564 ft` Volumes Volume, temporary pool 134,550 ft3 Volume, permanent pool, Vp„R,_P, 667,501 rya Volume, forebay (sum of forebays if more than one forebay) ft3 Forebay % of permanent pool volume % SAIDA Table Data Design TSS removal 90 °% Coastal SAIDA Table Used? Y (Y or N) MountainlPiedmont SAIDA Table Used? N (Y or N) SAIDA ratio 3,42 (unitless) Average depth (used in SAIDA table): Calculation option 1 used? (See Figure 10-2b) N (Y or N) Volume, permanent pool, V➢,,,,,-P,, 667.501 fit' Area provided, permanent pool, A, , _P, , 157,167 ft' Average depth calculated ft Average depth used in SAIDA, d., (Round to nearest 0.5ft) ft Calculation option 2 used? (See Figure 10-26) i Y (Y or N) Area provided, permanent pool. A�m_pw 157,167 M' Area, bottom of 10ft vegetated shelf, Awt_,h,K 143,596 11` OK GREAfalZ %NAN 0 T,wt-5 PI? SuWrAce 40M Ri; OK 7�rz 7WAnr a 1h16,, PP A&A' Need 3 ft min. Area, sediment cleanout, top elevation (bottom of pond), Abw,mnd 119,564 ft' 'Depth' (distance b/w bottom of 1Oft shelf and lop of sediment) 4.50 ft Average depth calculated = 4.60 It OK Average depth used in SAIDA, d,,, (Round to nearest 0.5ft) 1 4.5 ft OK Drawdown Calculations Drawdown through orifice? ,Y, , _,. (Y or N) Diameter of orifice (if circular) f • ::;'; 6.00 in Area of orifice (if -non -circular) i . ,. "'',� in' Coefficient of discharge (Co) -0.60 (unitless) Driving head (Ho) ",. : "0:27. it Drawdown through weir? N • (Y or N) Weir type (unitless) Coefficient of discharge (Cw) (unitless) Length of weir (L) - ft Driving head (H) ft Pre -development 1-yr, 24-hr peak flow i : _1.113 ft3lsec MAJI! fl-- AECA �U Post -development 1-yr, 24-hr peak flow ; . ;13.30 ft3lsec Storage volume discharge rate (through discharge orifice or weir) • 0.49 ft3lsec Storage volume drawdown time I 3.20 days OK, draws down in 2.5 days. Additional Information Vegetated side slopes f , , 10 :1 OK Vegetated shelf slope . -10 A OK Vegetated shelf width ! ."10.0 ft OK Length of flowpath to width ratio Varies :1 OK T�hrt/ a 7_/ME5 PP SLOW-04 A 4 ?W. Length to width ratio i 7-.' Varies :1 OK Trash rack for overflow & orifice? = Y (Y or N) OK Freeboard provided ! ;3.2 ft OK AibLWa 'r.-MP. rwe_ �`✓, 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 Deten;ion Basln•Rev,MM7109 Parts r. & II. Design Summary. Page 2 of 2 Permit No. {to be provided by DWO) i - , ��,� �, �Y �x z.= -c. �:..�a'--r-Tb 3-i ��• REQUIRED;REMS;GHEGKL�fi �STr'{;� r.. .,.n k , �,,r �. `s.:� �r '� ;.,':-'<� �,...s to 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. Pagel Plan 41 Initials Sheet No. i : rovf T;urw 7b F1Vi`__) S/74r Cv0mlr-_-'t T�Gav tram_ 1 S 1. Plans (q=SB=eNeFgef) of the entire site showing: Design at ultimate build -out, Off -site drainage (if applicable), ,�. Delineated drainage basins (inclu a Rational C coefficient per basin), Basin dimensions, Pretreatment system, .v/it High (low bypass system, lv�/� Maintenance access, ,4 so xeLV Zr 3&-0 on! YaCLA&vA1?y Proposed drainage easement and public right of way (ROW), Overflow device, and '9 Suor.3 A&A ill. RtTS (SE4 AT'7�![h'crc7) - Boundaries of drainage easement. A CIZr GEO OPQ FZE41APA/40Y t_Mf 5 N 2. Partial plan (1" �30fon anger) and details for the wet detention basin showing: L I lac •�� �� Out et structure with trash rack or similar, 1 Maintenance access, Pe6v,1 inrt¢y FtA"S 'd ��"� T `t Permanent pool dimensions, Forebay and main pond with hardened emergency spillway, Basin cross-section, Vegetation specification for planting shelf, and Filter strip. "//A �,W n,� � nc�. � Ta rya 8r za r (�e&t�'2 5 3. Section view of the wet detention basin (1==28 orlarger) showing: 5,Z� ^a -A Fh06x%?E0 Side slopes, 3:1 or lower, Pretreatment and treatment areas, and - Inlet and outlet structures. FJ 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. 5 5. A table of elevations, areas, incremental volumes & accumulated volumes for overall pond and for forebay, to verify volume provided. f 5 6. A construction sequence that shows how the wet detention basin will be protected from sediment until the entire drainage area is stabilized. (8_0.0t�. rv012r 0+•7 Sec,-rrar,i bra �, o �r l/ 0 7. The supporting calculations. . !jn�JWILO 8. A copy of the signed and notarized operation and maintenance (0&M) agreement. _t>—ML 4M_r cfircl0 9. A copy of the deed restrictions (if required), _tT A-rtl-&rlc:O 10. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. County soil maps are not an acceptable source of soils information. Form 5W401-Wet Detention Basin-Rev.8-9117109 Part III. Required Items Checklist, Page 1 of 1 High Density Residential Subdivisions Deed Restrictions & Protective Covenances In accordance with Title 15 NCAC 2H.1000 and S.L. 2006-246, the Stormwater Management Regulations, deed restrictions and protective covenants are required for High Density Residential 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, �P a acknowledge, affirm and agree by my signature below, that I will cause the following deed res rictions and covenants to be recorded prior to the sale of any lot: The following covenants are intended to ensure ongoing compliance with State Stormwater Management Permit Number , as issued by the Division of Water Quality 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 Water Quality. 5. Alteration of the drainage as shown on the approved plan may not take place without the concurrence of the Division of Water Quality. 6. The maximum allowable built -upon area per lot is square feet. 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. OR, if the proposed built -upon areas per lot will vary, please REPLACE #6 above with the following: 6. The maximum built -upon area per lot, in square feet, is as listed below: Lot # BUA Lot # BUA Lot # BUA Lot # BUA (A717;4C ,, C>) 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. Each lot will maintain a 30** foot wide vegetated buffer between all impervious areas and surface waters. '50 foot for projects located in the 20 coastal counties. 8. 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. ,SUN 9 2011 Ro Form DRPC-3 Rev.2 05Nov2009 Page 1 of 2 High Density_Residential Subdivisions Deed Restrictions & Protective Covenances Signature: j Date:Z e rCC 5 I ►� t , a Notary Public in the State of f �( �1 C'c; ; b I, 01 9 County of �p r• n [ , m q n do hereby certify that personally appeared 1n before me this the ,3 l 5� day of _� t� �_f , 20 tom_, and acknowledge i the due execution of the foregoing instrument. Witness my hand and official seal, C lvl_z� C Signature My Commission expires SEAL R Ez C'"E I%,F7 JUN 9 2011 Form DRPC-3 Rev.2 05Nov2009 Page 2 of 2 4319 Albemarle Plantation - Waterleaf Section 5/23/2011 High Density Residential Subdivision Deed Restriction Calculations LOT NO. UPLAND AREA (Sq. Ft AREA Ac. 50%ALLOWABLE IMPERVIOUS COVERAGE AREA Ac. 1 18,357 0.42 9,179 0.21 2 18,547 0.43 9,273 0.21 3 18,449 0.42 9,224 0.21 4 18,271 0.42 9,135 0.21 5 19,584 0.45 9,792 0.22 6 25,400 0.58 12,700 0.29 7 27,428 0.63 13,714 0.31 8 28,966 0.66 14,483 0.33 9 33,409 0.77 16,705 0.38 10 28,302 0.65 14,151 0.32 11 20,588 0.47 10,294 0.24 12 23,407 0.54 11,704 0.27 13 18,254 0.42 9,127 0.21 14 17,750 0.41 8,875 0.20 15 19,668 0.45 9,834 0.23 16 20,000 0.46 10,000 0.23 17 16,863 0.39 8,432 0.19 18 17,779 0.41 8,890 0.20 19 22,125 0.51 11,063 0.25 20 21,830 0.50 10,915 0.25 21 27,861 0.64 13,931 0.32 22 32,200 0.74 16,100 0.37 23 25,588 0.59 12,794 0.29 24 20,571 0.47 10,285 0.24 25 18,384 0.42 9,192 0,21 26 19,776 0.45 9,888 0.23 27 20,576 0.47 10,288 0.24 28 19,388 0.45 9,694 0.22 29 19,826 0.46 9,913 0.23 30 23,543 0.54 11,772 0.27 31 16,702 0.38 8,351 0.19 32 20,340 0.47 10,170 0.23 33 21,045 0.48 10,523 0.24 34 21,752 0.50 10,876 0.25 35 17,794 0.41 8,897 0.20 36 15,005 0.34 7,503 0,17 37 15,017 0.34 7,509 0.17 38 15,017 0.34 7,509 0.17 39 15,156 0.35 7,578 0.17 40 15,429 0.35 7,715 0.18 41 15,447 0.35 7,723 0.18 42 15,031 0.35 7,516 0.17 43 15,001 0.34 7,500 0.17 44 18,531 0.43 9,266 0.21 45 16,924 0.39 8,462 0.19 46 17,185 0.39 8,592 0.20 47 17,313 0.40 8,657 0.20 48 17,619 0.40 8,810 0.20 49 18,237 0.42 9,119 0.21 50 19,169 0.44 9,585 0.22 51 19,848 0.46 9,924 0.23 52 20,181 0.46 10,090 0.23 53 20,127 0.46 10,063 0.23 54 19,579 0,45 9,789 0.22 JUN 9 2011 4319 Albemarle Plantation - Waterleaf Section High Density Residential Subdivision Deed Restriction Calculations 5/23/2011 LOT NO. UPLAND AREA (Sq. Ft AREA Ac. 50%ALLOWABLE IMPERVIOUS COVERAGE AREA Ac. 55 17,913 0.41 8,956 0.21 56 18,294 0.42 9,147 0.21 57 19,306 0.44 9,653 0.22 58 21,075 0.48 10,538 0.24 59 21,638 0.50 10,819 0.25 60 19,112 0.44 9,556 0.22 61 17,524 0.40 8,762 0.20 62 16,905 0.39 8,453 0.19 63 16,807 0.39 8,403 0.19 64 16,836 0.39 8,418 0.19 65 18,176 0.42 9,088 0.21 66 17,506 0.40 8,753 0.20 67 17,273 0.40 8,636 0.20 68 17,404 0.40 8,702 0.20 69 16,453 0.38 8,227 0.19 70 16,874 0.39 8,437 0.19 71 15,106 0.35 7,553 0.17 72 15,051 0.35 7,526 0.17 73 16,121 0.37 8,060 0.19 74 16,295 0.37 8,148 0.19 75 16,285 0.37 8,142 0.19 76 15,696 0.36 7,848 0.18 77 15,043 0.35 7,521 0.17 78 16,241 0.37 8,121 0.19 79 15,538 0.36 7,769 0.18 80 16,760 0.38 8,380 0.19 81 18,281 0.42 9,141 0.21 82 21,207 0.49 10,603 0.24 83 20,640 0.47 10,320 0.24 84 19,892 0.46 9,946 0.23 85 16,652 0.38 8,326 0.19 86 19,643 0.45 9,822 0.23 87 17,978 0.41 8,989 0.21 Total 11667,664 3818 833,832 19.14 Property Area Data Area (sf) Area (ac) Residential Lot Area: 1,667,664 38.28 Open Space Area: 451,624 10.37 Right-of-way Area: 253,525 5.82 Total Property Area: 2,372,813 54.47 Excluded Area Data Total Coastal Wetlands Area: 0 0.00 F�2c+�Wihl_ Total Surface Water Area: 29,942 0.69 (Area within banks of Stream) Total Excluded Area: 29,942 0.69 Coverage Data Amenity Allowance Coverage 20,000 0.46 20' wide Road Coverage: 119,294 2.74 Residential Lot Coverage: 833,832 19.14 Total Impervious Coverage: 973,126 22.34 Total Project Area: 2,342,871 53.78 % Impervious Coverage 41.54% \,\�111 r. d !13 �77i. i. ', rl�. y,,L. . �'w1 _ r •s1 L ���, _ r i, � c,.' y� � , Permit Number: (to be provided by D9'Q) 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 BMP elements noted in the inspection will be corrected, repaired or replaced immediately. These deficiencies can affect the integrih, of structures, safety of the public, and the removal efficiency of the BMP. The wet detention basin system is defined as the wet detention basi pretreatment including forebays and the vegetated filter if one is Pr NE-C E I VE This system (check one): OCT 2 4 2011 ❑ does ® does not incorporate a vegetated filter at the outlet. This system (check one): ®WQ-WARO ❑ 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 maintenance, the flushing of sediment through the emergency drain should be minimized to the maximum extent practical. , - Once a year, a dam safety expert should inspect the embankment. After the wet detention pond is established, it should be inspected once a month and 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: Potential problem. Now 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 apelication. Vegetation is too short or too Maintain vegetation at a height of ]on —approximately six inches. Form SW401-Wet Detention Basin O&M-Rev,4 Page l of 4 Permit Number: (to he provided by DIVQ) Drainage Area Number:_ BMP element: Potentialproblem: How 1 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 s ra in , 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 s ra in , 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 growth. Remove the plants by wiping them Cattails, phragmites or other invasive plants cover 50% of with pesticide (do not spray). the basin surface. Form SW401-Wet Detention Basin O&M-RevA Page 2 of 4 Permit Number: (to be Provided by DH'Q) Drainage Area Number: BMP element: Potentialproblem: How l will remediale 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 Repair or re lace 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 5.01� feet in the main pond, the sediment shall be removed. When the permanent pool depth reads ° feet in the forebay, the sediment shall be removed. BASIN DIAGRAM ill in the blanks) r 0 Permanent Pool Elevation (05 Sediment Removal 1.`a;' Pe anen Pool - - - - - - - - - - - - - Volume Sediment Removal Elevation I Volume Bottom);levatio .0.57V fiMin.-------------------------------------------- ------ Sediment Bottom Elevation Storage Sedimei Storage FOREBAY MAIN POND Form SW401-Wet Detention Basin O&M-Rev.4 Page 3 of 4 Permit Number: (to be provided by DIYQ) I acknowledge and agree by my signature below that I 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 nome:Albemarle Plantation - Waterleaf Section BMP drainage area number:# I Print name: ,rsR /`�� z Title: Addr Phone: GSA — y� Signature: Date: Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. a Notary Public for the State of County of ; C-, , do hereby certify that personally appeared before me this J day of i1' �c :.L r , ,' ( I , and acknowledge the due execution of the L forgoing wet detention basin maintenance requirements. Witness my hand and official seal, Z kE CAS Notory Public Perqulmans County My Co miss n Expires= C AR SEAL �1 My commission expires Form SW401-Wet Detention Basin O&M-Rev.4 Page 4 of 4 Permit Number: (to be provided by DWQ) I acknowledge and agree by my signature below that I am responsible for the performance of the 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. Project name -Albemarle Plantation - Waterleaf Section BMP drainage area number: Print name:. Title: Addrl Phone: 4. — Signature: Date: _ r3/ —// - v Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. a Notary Public for the State of ec;r J . r-q , County of `­C f-q t ; , a nS , do hereby certify that personally appeared before me this day of Ma—�,( and acknowledge the due execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal, �\\\O Notary Pub11c Perqulmans County _ My CoMmisson Expires= �0 rllj111411 SEAL My commission expires! i 3) 1 I Form SW401-Wet Detention Basin O&M-Rev.4 Page 4 of 4 m t � . Permit No. flo be provided by AWO) A'v NNCO DENR STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM WET DETENTION BASIN SUPPLEMENT This farm must be rifted out, punted and submlffed, The Required Items Checklist (Part III) must be printed, filled out and submitted along with all of fhe required informatiwr, of war�4 P r LMP,ROJECTiINFORMATION r _. ,, ., , , ' 1 r . ,� - ,_ � U Project name' i Albemarle Plantation' Walerkat 5action - Contact person I _ , Kip Peregoy.' ' Phone number ;(252]'426 4653 _ Date 61212011, Rev 11/1012011 Drainage area number Dralnage.Area #1 - Entire developed'Area of Project [LSl0ES1GN'INFORMTtON Vtif 1, - Fr: ") i 1 r:: r3 Site Characteristics Drainage area impervious area, post -development % impervious Design rainfall depth Storigii Volume: Non -SA Waters' [minimum volume required Volume provided Storage Votume: SA Waters 1.5' runolf volume Pre -development 1-yr, 24-hr runoff Past -development l-yr, 24-hr runoff Mlnfm6m volume reg0bd Volume provided Peak Flow Calculations Is the prolpost control of the 1yr 24hr storm peak flow required? 1-yr, 24-hr rainfall depth Rollonal C, pre -development Rational C. post -development Rainfall Intensity:l-yr, 24-hr storm Pre -development 1-yr, 24-hr peak flow Post -development 1-yr, 24-hr peak flow PrefPoM 1-yr,'24-hrpeak flow control Elevations Temporary pool elevalion Permanent pool elevation SHWT elevalidn (ipprox. at the pens. pool elevation) Top of 1Oft vegetated shelf elevation Bottom of 1 OR vegetated shelf elevation Sediment deanoul, lop elevation (bottom of pond) Sediment deanout, bottom elevation Sediment storage provided Is there additional volume"stored above the state -required temp. pool? Elevation of the lop of the additional volume I -.973,126 ftz 43.94 % } .. = , •923,318 to OK i32,627, ft r OK, volume provided is equal to or In excess of volume required, NIA:ft3 to ft� I 3.2 in ! _ :0.47 (uNtloas) € 4.50: (unitless) J, .": O.giWr OK 1.13 Osec 3.30 flalsec 2.17 'ftelsec i - t-4571Irlisl I, 7.50 fmsl I . M -'77.50 fmsl t r'16.00 fmsl iG 7.00 fmsl i `, 0:70 tmsl t -2.00 frost 2.70 It Y' (Y or N) k'r,� ( "A 0.0 fmsl Insufficient Must equal the temp. pool elev. previously entered; Fenn SW4D1-Wet Detantion Baslr•Rev,6.9117A39' Pans 1. & rr, Design Summary, Page 1 of 2 Permit No:_ (to be provided by DWO) Il9flESIGHI[HF.ORMATIOH x r _•�'1 _ +rTz_s �`'ri _ Surface Areas Area, temporary pool Area REQUIRED, permanent pod SAfDA ratio Area PROVIDED,, permanent pool, A,„ ,,w Area; tloitom of 14ft vegetated shelf, Aj,,.,Mr, Area, sediment efeanoul, top elevation (bottom of pond), volumes Volume, temporary pod Volume, permanent pool,'Vm_,,d Volume, forebay (sun of forebays if more than one forebay) Forebay % of permanent pod volume SA)DA Table Data Design TSS removal Coastal SA1DA Table Used?, MountairliPiedmonl SAIDA Table Used7 SAIDA ratio Average depth (used In SA1DA table): Calculation option 1 used? (See Figure 10-2b) 'Volume, permanent pool,•V. ,, a Area provided, permanent pool, A,,,,,•,,,, Average deplh calculated Average depth used In SAIDA, d., (Round to nearest 0,611) Calculation option 2 used? {See Figure 10.2b). Area provided, permanent pool; A,. , ,w Area; bottom of loft vegetated shelf; Ab, u 137,739 It' (511,8221' C!, 34' (unitfess) r 95,924-fl i 65,298 fe t 132,027 fe OK ' Fi559,090,fe i — fl3 — '7" � w "BAUz-0 CIA) CP7�*V a10A!:G e% Y.: _ __ ; (Y or N) I N (Y or N) 2.34 (unitless) l N'•' (Y or N) 559,090 fl' 149,041ff I ' fl Need 3 ft min. t .r1 fc'$WW (Y or N) [ /A& O aV 95,924 If Area, sedunent•cteaeoul, lop efevatiofi (bottom of porid), AwL,,W 65,298 ft?. 'Depth' (distance bfw bottom of 1Oft sheli.and top of sediment) 6.30 ft. Average depth calculated i .} "`M5:79' ft 'OK Average depth used in SAIDA, d,,, (Round to nearest 0.M) 1 ,- . {M8.oitt OK Drawdown Calculations Drawdown through orifice? :Y' (Y or N) Diameter of ofifice (it circular) t = =.Ho 1n Area of orifice (if -non -circular) I _ .._ 4 - , in, Coefficient of discharge (Co) I4.64 (unilless) Drawing head (H,) f :4.35,ft Drawdown through weir? 1 '- " .N_ (Y or N) Weir type 1, , . ' (unitless) Coefficient of discharge (C,) i jja,� :; ' n (unidess) Length of weir (L) f ft• Driving head (H) t = ft Pre -development 1-yr, 24-hr peak Bow ; ; _ 0 13' elsec Post-devefopmentl-yr,24-hrpeak flow (;'- .;3.30 fOlsec Storage volume discharge rate (through discharge office or weir) i �0.57,"ftllsec Storage volume drawdown time 2.50 days Additional Information Vegetated side slopes Vegetated shelf slope Vegetatetl shelf width Length of flawpath•to width ratio Length to width ratio Trash rack far overflow & orifice? Freeboard provided Vegetated filter provided? Recorded drainage easement provided? Cepures all runoff at ullimate build -out? Drain mechanism for maintenance or emergencies is: OK, draws down in 2-5 days. t . _"=16:1 bK t 710.:1 OK ` 10.0 ft OK -Y (Y of N) OK -N,-.: •_(YorN) OK Y= '(Y or N) OK I - Y'•-_= (YorN) OK ;PortablePump: Form SW401-Wel delonlion 8asin-Rev.8-9r17109 Parts I. d II. Design Summery; Page 2 of 2 OT --A 0 AL EMARLE PLANTATION STORYSwATFR MANAOFMEM PUSH PLAN WSRL WATFRLrAF