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SW4170401_CURRENT PERMIT_20170630
STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW( 72oI DOC TYPE CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE YYYYM M DD ROY COOPER G,,,,n,, Energy, Mineral and Land Resources ENVIRONMENTAL OVALITV May 19, 2017 Mr. William Ratchford, Vice President Southwood Realty Company P.O. Box 4158 Gastonia, North Carolina 28054 MICHAEL S. REGAN secre,nry TRACY DAVIS 01mctur N C Department of Environmental Quality Received JUN 3 0 2017 Winston-Salem Regional Office Subject: Stormwater Permit No. SW4170401 The Reserve at Regents Center Ph 2 Lexington, Davidson County Dear Mr. Ratchford: The Stormwater Permitting Unit received a complete package for the project on April 03, 2017. Staff review of the plans and specifications has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H.1000 and Session Law 2006-246. We are forwarding this Stormwater Management Permit No. SW4170401, issued May 18, 2017, for the construction, operation and maintenance of the subject project and the stormwater BMPs. This permit shall be effective from the date of issuance until May 19, 2025, and shall be subject to the conditions and limitations as specified therein, and does not supersede any other agency permit that may be required. 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 follow the procedures for transfer of 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 150E of the North Carolina General Statutes. Per NCGS 143-215(e) the petition must be filed with the OAH within thirty (30) days of receipt of this permit. You should contact the OAH 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. After thirty days from the date of this letter, this project will be kept on file at the NCDEQ Division of Energy, Mineral and Land Resources, Land Quality Section, Winston-Salem Regional Office. If you have questions after that time, please contact Matt Gantt, matt.gantt@ncdenr.gov, of that office. Until that time, if you have any questions or need State of North Carolina I Environmental Quality I Energy, Mineral and Land Resources 1612 Mail Service Center 1 512 North Salisbury Street I Raleigh, NC 27699-1612 919 707 9200 T additional information concerning this permit, please contact Richard Riddle at (919) 807-6375; or rick.riddle@ncdenr.gov. Sincerely, Original Signed by Richard L. Riddle, Jr. Richard L. Riddle, Jr., Plans Reviewer for Tracy E. Davis, P.E., CPM Director, Division of Energy, Mineral and Land Resources cc: NCDEQ DEMLR Winston-Salem Regional Office Rich Glover, Jamestown Engineering Group, Inc. Central Files Stormwater Permitting Unit Files Attachments Scam of 4mt6Cazolim I Entim mI Qugitvl EnerM ,inual andLaod Rewmus l6l2%W Service Cmm 131_ North Salitbm-Smet I Raleigh, �X 276990612 919 707 9200 T t State Stormwater Permit Permit No. SW4170401 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 Southwood Reality Company for The Reserve at Regents Center Phase 2 Lexington, Davidson County FOR THE construction, operation and maintenance of two bioretention basins in compliance with the provisions of Session Law 2006-246 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 Energy, Mineral and Land Resources, Land Quality Section, and considered a part of this permit. This permit shall be effective from the date of issuance until May 19, 2025, 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 shown on the approved site plan for this project, the stormwater application and all supporting data as referenced in Section 1.7 of this permit. The stormwater control has been designed to handle the runoff from 154,137 square feet of impervious area. 3. The tract will be limited to the amount of built -upon area as indicated in Section 1.2 of this permit, and per the application documents and as shown on the approved plans. 4. All stormwater collection and treatment systems must be located in either dedicated common areas or recorded easements. The final plats for the project will be recorded showing all such required easements, in accordance with the approved plans. 5. The runoff from all built -upon area within the permitted drainage area of this project must be directed into the permitted stormwater control system. Page 1 of 6 State Stormwater Permit Permit No. SW4170401 6. The built -upon areas associated with this project shall be located at least 30 feet landward of all perennial and intermittent surface waters. 7. The design criteria for the two bioretention basins can be found on the approved, stamped and signed site plan and other related supporting calculations and data for this project and it is incorporated into this permit by reference and the project stormwater management system must be maintained at design condition as shown on the approved site plan. II. SCHEDULE OF COMPLIANCE The stormwater management system shall be constructed in its entirety, vegetated and operational for its intended use prior to the completion of the construction of any built -upon surface and the issuance of any certificate of occupancy. 2. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 3. The permittee shall at all time provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency. The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited to: a. Semiannual scheduled inspections (every 6 months). b. Sediment removal. C. Mowing and re -vegetation of slopes and the filter strip. d. Immediate repair of eroded areas. e. Maintenance of all slopes in accordance with approved plans. f. Debris removal and unclogging of all drainage structures, level spreader, filter media, planting media, underdrains, catch basins and piping. q. Access to the cell and outlet structure must be available at all times. 4. Records of maintenance activities must be kept for each permitted BMP. The reports will indicate the date, activity, name of person performing the work and what actions were taken. The permittee shall submit to the Division of Energy, Mineral and Land Resources, Land Quality Section, an annual summary report of the maintenance and inspection records for each BMP. The report shall summarize the inspection dates, results of the inspections, and the maintenance work performed at each inspection. The stormwater treatment system shall be constructed in accordance with the approved plans and specifications, the conditions of this permit, and with other supporting data. 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. Page 2 of 6 State Stormwater Permit Permit No. SW4170401 8. If the stormwater system was used as an Erosion Control device, it must be restored to design condition prior to operation as a stormwater treatment device, and prior to occupancy of the facility. 9. • Access to the stormwater facilities shall be maintained via appropriate recorded easements at all times. 10. The permittee shall submit to the Director and shall have received approval for revised plans, specifications, and calculations prior to construction, for any modification to the approved plans, including, but not limited to, those listed below: a. Any revision to any item shown on the approved plans, including the stormwater management measures, built -upon area, details, etc. b. Project name change. C. Transfer of ownership. d. Redesign or addition to the approved amount of built -upon area or to the drainage area. e. Further subdivision, acquisition, lease or sale of all or part of the project area. The project area is defined as all property owned by the permittee, for which Sedimentation and Erosion Control Plan approval or a CAMA Major permit was sought. f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. 11. The permittee shall submit final site layout and grading plans for any permitted future areas shown on the approved plans, prior to construction. 12. A copy of the approved plans and specifications shall be maintained on file by the Permittee for a minimum of ten years from the date of the completion of construction. 13. The 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. 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 Energy, Mineral and Land Resources, Land Quality Section, 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. The permittee is responsible for compliance with all permit conditions until such time as the Division approves a request to transfer the permit. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to enforcement action by the Division of Energy, Mineral and Land Resources, Land Quality Section, in accordance with North Carolina General Statute 143-215.6A to 143-215.6C. Page 3 of 6 State Stormwater Permit Permit No. SW4170401 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. The permittee grants DEQ Staff permission to enter the property during normal business hours for the purpose of inspecting all components of the permitted stormwater management facility. 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. 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. 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 2006- 246, 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. 12. The permittee shall submit a renewal request with all required forms and documentation at least 180 days prior to the expiration date of this permit. Permit issued this the 19th day of May, 2017. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION Original Signed by &r rZ �n Richard L. Riddle, Jr, Plans Reviewer for Tracy E. Davis, P.E., Director Division of Energy, Mineral and Land Resources By Authority of the Environmental Management Commission Page 4 of 6 State Stormwater Permit Permit No. SW4170401 The Reserve at Regents Center Phase 2 Lexington, Davidson County Stormwater Permit No. SW4170401 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, The Reserve at Regents Center Phase 2 (Project Name) for (Project Owner) hereby state that, to the best of my abilities, due care and diligence was used in the observation of the project construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications. The checklist of items on page 2 of this form is included in the Certification. Noted deviations from approved plans and specification: Signature Registration Number Date SEAL Page 5 of 6 State Stormwater Permit Permit No. SW4170401 Certification Requirements: 1. The drainage area to the system contains approximately the permitted acreage. 2. The drainage area to the system contains no more than the permitted amount of built -upon area. 3. All the built -upon area associated with the project is graded such that the runoff drains to the system. 4. 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, per the vegetation plan. 9. Vegetated slopes are no steeper than 3:1. 10. The inlets are located per the approved plans and do not cause short- circuiting of the system. 11. The permitted amounts of surface area and/or volume have been provided. 12. Required drawdown devices are correctly sized per the approved plans. 13. All required design depths are provided. 14. All required parts of the system are provided, such as a vegetated shelf, and a forebay. 15. The required system dimensions are provided per the approved plans. cc: Matt Gantt, Land Quality Section NCDEQ-DEMLR, Winston-Salem Regional Office 585 Waughtown Street Winston-Salem, North Carolina 27107 Page 6 of 6 R. Joe Harris & Associates, Inc. 127 Ben Casey Drive, Suite 101, Fort Mill, S.C. 29708 (803)802-1799 May 24, 2017 Stormwater Permitting Program Land Quality Section NCDEMLRINCDEQ 1612 Mail Service Center Raleigh, North Carolina 27699-1612 r le VC Re: Stonebridge Parcel 5 MAY 30 PO» Stormwater Management Permit — Second Submittal DENR SI pRMwA ERPERM�r/NG RJH Ref.No.: 2488 Richard L. Riddle, Jr. (Stormwater Reviewer): On behalf of DHG SB, LLC, we have enclosed the following items for the review and approval of the above referenced project: 1. One (1) Signed - Original document of the Operation & Maintenance Agreement — dated 5/23/17 If you should have any questions or require any additional information, please feel free to contact me at (803) 802-1799 or via email at dnesbitt@rioeharris.com. Sincerely, R. JOE HARRIS & ASSOCIATES, INC. ,-�4 Darret G. Nesbitt Civil Engineer I www.rjoeharris.com Project Name: Project Location: Stonebridge Subdivision Parcel 5 Intersect. of Stone Manor Dr and Bent Green Ln, Monroe, NC Maintenance records shall be kept on the following BMP(s). I his maintenance record shall be Kept In a log In a Known set locauo Any deficient BMP 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 pollutant removal efficiency of the BMP(s). The BMP(s) on this project include (check all that apply & correspo Bioretention Cell Quantity: Dry Detention Basin Quantity: Grassed Swale Quantity: Green Roof Quantity: Infiltration Basin Quantity: Infiltration Trench Quantity: Level Spreader/VFS Quantity: Permeable Pavement Quantity: Proprietary System Quantity: Rainwater Harvesting Quantity: Sand Filter Quantity: Stormwater Wetland Quantity: Wet Detention Basin Quantity: 3 Disconnected Impervious Area Present: No User Defined BMP Present: No O&M tables Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): Location(s): I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed for each BMP above, and attached O&M tables. I agree to notify NCDENR of any problems with the system or prior to any changes to the system or responsible party. " Responsible Party: Title & Organization: Street address: City, state, zip: Phone number(s): Email: Eric Wood - DHG SB, LLC Chairman 236 Raceway Drive, Suite 7 Mooresville, North Carolina 28117 704-208-4251 ewood@nesthomes.com Signature: /` 1-1-� Date: 3 /' I, R. /�}/(o�/ a Notary Public for the State of /f% County of �jCt1e/� do hearby certify that "/jc woct:; personally appeared before me this Z3 day of le� and 2017 acknowledge the due execution of the Oper tioLn� and MaintenanceAgreement. Witness my hand and official seal, �LGLG Z. 4�f 6—/7 /7 'void wx.see. ST61111 A. -t' •'�„ � '` 5/22/2017 Version 1.f"% u"•_.sKY' O&M Manual Page 1 of 5 I ° Wet Detention Pond Maintenance Requirements .1 The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the vegetated filter if one is provided. 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: How I will remediate the problem: The entire BMP Trash/debris is present. Remove the trash/debris. The perimeter of the BMP Areas of bare soil and/or Regrade the soil if necessary to remove the gully, and then plant a erosive gullies have formed. 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 approximately six inches. long. The inlet device The pipe is clogged. Unclog the pipe. Dispose of the sediment off -site. The pipe is cracked or Replace the pipe. otherwise damaged. Erosion is occurring in the Regrade the swale if necessary to smooth it over and provide erosion swale. control devices such as reinforced turf matting or riprap to avoid future problems with erosion. Stone verge is clogged or Remove sediment and replace with clean stone. covered in sediment (if applicable). The forebay Sediment has accumulated to Search for the source of the sediment and remedy the problem if a depth greater than the possible. Remove the sediment and dispose of it in a location where it original design depth for will not cause impacts to streams or the BMP. sediment storage. 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 practices show that pruning is needed to maintain optimal plant health. Plants are dead, diseased or Determine the source of the problem: soils, hydrology, disease, etc. dying. 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. STORM-EZ 5/22/2017 Version 1.4 O&M Manual Page 3 of 5 l Wet Detention Pond Maintenance Requirements (Continued) I The main treatment area Sediment has accumulated to Search for the source of the sediment and remedy the problem if a depth greater than the possible. Remove the sediment and dispose of it in a location where it original design sediment will not cause impacts to streams or the BMP. storage depth. Algal growth covers over 50% Consult a professional to remove and control the algal growth. of the area. Cattails, phragmites or other Remove the plants by wiping them with pesticide (do not spray). invasive plants cover 50% of the basin surface. The embankment Shrubs have started to grow Remove shrubs immediately. on the embankment. Evidence of muskrat or Use traps to remove muskrats and consult a professional to remove beaver activity is present. beavers. A tree has started to grow on Consult a dam safety specialist to remove the tree. the embankment. 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 replace the outlet device. The receiving water Erosion or other signs of Contact the local NC Department of Environment and Natural damage have occurred at the Resources Regional Office. outlet. 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. STORM-EZ 5/22/2017 Version 1.4 O&M Manual Page 4 of 5 I Wet Detention Pond Design Summary I Wet Pond Diagram WET POND ID FOREBAY MAIN POND 100 Permanent Pool El. 637 Permanent Pool El. 637 Temporary Pool El: 638.12 Temporary Pool El: 638.12 Pretreatment other Yes Clean Out Depth: 1 Clean Out Depth: 2 than forebay?F Sediment Removal El: 636 Sediment Removal El: er? 635 Has Vag. FiltNo Bottom Elevation: 635 Bottom Elevation: 634 WET POND ID FOREBAY MAIN POND 200 Permanent Pool El. 651 Permanent Pool El. 651 Temporary Pool El: 651.62 Temporary Pool El: 651.62 Pretreatment otherPNqo Clean Out Depth: 2 Clean Out Depth: 2 than forebay? Sediment Removal EI: 649 Sediment Removal El: 649 Has Vag. Filter? Bottom Elevation: 648 Bottom Elevation: 648 WET POND ID FOREBAY MAIN POND 300 Permanent Pool El. 648 Permanent Pool El. M Temporary Pool El: 648.79 Temporary Pool El:Pretreatment other Yes Clean Out Depth: 3 Clean Out Depth:than forebay? Sediment Removal El: 645 Sediment Removal El:Has Veg. Filter? No Bottom Elevation: 644 Bottom Elevation: STORM-EZ 5/22/2017 Version 1.4 O&M Manual Page 5 of 5 i H16(l'noiiet7Y DEMLR USE ONLY Date Received Fee Pai Permit Number Applicable Rules: ❑ Co stal 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 C Department of Environment and Natural Resources 91`7r 4�/// Division of Energy, Mineral and Land Resources sTo 4, U!J STORMWATER MANAGEMENT PERMIT APPLICATION FORM9TFFA.QO, This form may be photocopied for use as an original FP���� 1. GENERAL INFORMATION I. Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans specifications, letters, operation and maintenance agreements, etc.): THE RESERVE AT REGENTS CENTER - PHASE 2 2. Location of Project (street address): 100 REGENTS CENTER COURT City:LEXINGTON County:DAVIDSON Zip:27292 3. Directions to project (from nearest major intersection): 850' SOUTH OF THE INTERSECTION OF REGENTS CENTER COURT AND OLD SALISBURY ROAD 4. Latitude:35° 47' 56.4" N Loneitude:80* 17' 49.5" W of the main entrance to the project. II. PERMIT INFORMATION: 1. a. Specify whether project is (check one): ®New []Modification ❑ Renewal w/ Modifications I Reneioals with modifications also requires SWU-102 - Renewal Application Form b.lf 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 2. 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 DEMLR 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): []LAMA Major ❑NPDES Industrial Stormwater ®Sedimentation/Erosion Control: 6.3 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: 5. Is the project located within 5 miles of a public airport? []No ®Yes If yes, see S.L. 2012-200, Part Vl: http://portal.ncdenr.org/web/ir/rules-and-regulations Farm SWU-101 Version Oct. 31, 2013 1 1 Page I of 'w .t. 2 III. 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 oroiectl: Applicant/Organization:SOUTHW00DREALTY COMPANY Signing Official & Title: y K&W n V 4+ 1-r Lf J r b.Contact information for person listed in item la above: Street Address:165 SOUTH YORK STREET City:GASTONIA State:NC Zip:280� Mailing Address (ifapplicable):PO BOX 4158 City: C<t iv S State: iUL Zip: $USA/ Phone: (704 ) 869-6024 Fax: (704 1 685-9139 Email:william.ratchford@southwoodreay.com c. Please 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 Signing Official & b.Contact information for person listed in item 2a above: Street Address: State: Mailing Address (if applicable): City: State: Zip: Phone: ( ) Fax: ( ) 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/Organization:MIKE BRIGGS Signing Official & Title:V.P. OF OPERATIONS b.Contact information for person listed in item 3a above: Mailing Address:PO BOX 4158 City:GASTONIA State:NC Zip:28054 Phone: (704 ) 869-6024 Fax: (704 1 685-9139 Email:mike.briggs@southrealty.com 4. Local jurisdiction for building permits: CITY OF LEXINGTON Point of Contact:IOSH MONK Phone #: (336 1 248-3900 EXT. 3309 Form SWU-101 Version Oct. 31, 2013 Page 2 of IV. PROJECT INFORMATION 1. In the space provided below, briefly summarize how the stormwater runoff will be treated. THE STORM W ATER RUNOFF WILL BE TREATED BY TWO SEPARATE BIO-RETENTION CELLS 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 YADKIN PEE-DEE River basin. 4. Total Property Area: 37.15 acres 5. Total Coastal Wetlands Area: acres 6. Total Surface Water Area: 0.56 acres 7. Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project Area*:36.59 acres Total project area shall be calculated to exclude the following: the nonnal ool of impounded structures, the area between the banks of stremns 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 MHIM line. The resultant project area is used to calculate overall percent built upon area (BUA). Non -coastal wetlands landward of the NHW (or MHW) line umy be included in the total project area. 8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 20.9% (total 9. How many drainage areas does the project have?2 (For high density, count 1 for each proposed engineered stortwater BMP. For low densihj and other projects, use 1 for the whole properhj 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 Drainage Area 2 Drainage Area Drainage Area _ Receiving Stream Name SWEARING CREEK SWEARING CREEK Stream Class C C Stream Index Number • 12-113 12-113 Total Drainage Area (so 225,976 56,628 On -site Drainage Area (so 187,872 56,628 Off -site Drainage Area (so 38,104 0 Proposed Impervious Area'" s 114,718 39,419 % Impervious Area" total 50.8 69.6 Impervious" Surface Area Drainage Area 1 Drainage Area 2 Drainage Area _ Drainage Area _ On -site Buildings/Lots (so 37,361 13,027 On -site Streets (so 0 0 On -site Parkin (so 55,273 22,182 On -site Sidewalks (so 7,212 2,210 Other on -site (so 0 0 Future (so 2,000 2,000 Off -site (so 12,872 0 Existing BUA' so 0 0 Total (so: 114,718 39,419 Stream Class and Index Number can be determined at: IUtpVlyortnLnedenr.orgAvebfwq(ps csu/classiftcatiwts Form SWU-101 Version Oct. 31, 2013 Page 3 of Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas, sidewalks, gravel areas, etc. Report only that avount of existing BUA that will remain after development. 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. AERIAL PHOTO ALIGNED BY FIELD LOCATIONS Projects in Union County: Contact DEMLR Central Office staff to check ifthe project is located within a Threatened & Endangered Species watershed that may be subject to more stringent stormwater requirements as per 1 SA NCAC 0211.0600. 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.ore/web/wo/ws/su/bmp-manual. VI. SUBMITTAL REQUIREMENTS Only complete application packages will be accepted and reviewed by the Division of Energy, Mineral and Land Resources (DEMLR). A complete package includes all of the items listed below. A detailed application instruction sheet and BMP checklists are available from http://portal.ncdenr.org web/wq/ws/su/statesw/forms dots. The complete application package should be submitted to the appropriate DEMLR Office. (The appropriate office may be found by locating project on the interactive online map at http://portal.ncdenr.org/web/wq/ws/su/maps.) 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/wg/ws/su/statesw/forms does. Initials 1. Original and one copy of the Stormwater Management Permit Application Form. 2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants %a Form. (if required as per Part VII below) 3. Original of the applicable Supplement Form(s) (sealed, signed and dated) and O&M Tk agreement(s) for each BMP. 4. Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer to Tll _ http://www.envhelp.org/pages/onestopexpress.htmI 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/management for 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 1h mile of the site boundary, include the nh mile radius on the map. 7. Sealed, signed and dated calculations (one copy). Ili (o 8. Two sets of plans folded to 8.5" x 14" (sealed, signed, & dated), including: Tu_ 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 lines. • 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. I. Details of roads, drainage features, collection systems, and stormwater control measures. 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. Form SWU-101 Version Oct. 31, 2013 Page 4 of 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). 3. 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"x11" 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 DEMLR to verify the SHWPprior to submittal, (910) 796-7378.) 2261 0 23 10. A copy of the most current property deed. Deed book: 2177 Page No: 0054 (L( 11. 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 la, 2a, and/or 3a per 15A 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. h!W://www.secretary.state.nc.us/CorRorations/CSearch.aspx VIL DEED RESTRICTIONS AND PROTECTIVE COVENANTS 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 httl2://portal.ncdenr.orglweb/ir/state- stormwater-forms dots. 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 DEMLR, and that they will be recorded prior to the sale of any lot. Vlll. 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:THOMAS R. (RICH) GLOVER, IR., PE Consulting Firm: JAMESTOWN ENGINEERING GROUP, INC. Mailing Address:PO BOX 365 City:IAMESCOWN Phone: (336 ) 886-5523 Email:rglover@eamestownengineering.com State:NC Zip:27282 Fax: (336 ) 886-5478 IX. PROPERTY OWNER AUTHORIZATION (if Contact Information, item 2 has been filled out, complete this section) 1, (print or hype name of person listed in Contact Information, items 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, itenn la) with (print or hjpe name of organization listed in Contact Information, item la) 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 Oct. 31, 2013 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 DEMLR Stormwater permit reverts back ,to me, the property owner. As the property owner, it is my responsibility to notify DEMLR 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. 1 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. Date: a Notary Public for the State of do hereby certify that County of personally appeared before me this _ day of 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 1, (print or hype name of person listed in Contact Infonmation, item 1a) ( LLPAn F.At tkfo&D certify that the information included on this permit application form is, to the best of my knowledge, correct and that the project will be constructed in conformance with the approved plans, that the required deed restrictions and protective covenants will be recorded, and that the proposed project complies with the requirements of the applicable stormwater rules underH 15A NCAC 2.1000 and any other applicable state stormwater requirements. Signature: ?/-` a�- t yy��Wr. /" Date: U,01 I Z 1, 4v-fl�,Jo I �. ?1(/Vl a Notary Public for the State of UA e l County of Aa Uk . do hereby certify that Wl WaM Pdkh%CC personally appeared before me this Z'l day of MarCl,\, . c2ZI %, and acknowledge the due execution of the application for a stormwater permit. Witness my hand and official seal, NpTARY Ave41C . SEAL My commission expires dGU, WN Form SWU-101 Version Oct. 31, 2013 Page 6 of -- _ - - -_ _ �_ _..: fnt - .Name, _' � - Acct No � .,..Invoice � .. Date ... P.O. Nurri'. ` � � '� Refeience � � � � Amount � Net 303 THE RESERVE AT F 1400-303 303032117-2 3/22/2017 Stormwater Permit Reserve at Regents 505.00 505.00 Payor: SOUTHWOOD REALTY COMPANY Date Check No. Check Amount Payee: NC DEPT OF ENVIRONMENTAL QUALITY 3/2212017 433116 505.00 Retain this statement for your records ❑©. s se.. ___ •s• rss e ____ _. -. _,. - s s •s ss es s s s• s B,D SOUTHWOOD REALTY COMPANY BRANCH BANKING & TRUST OPERATING ACCOUNT GASTONIA, NC PO BOX 280 GASTONIA,,NC 28053 66-17 531 Date Check No. Check Amount 3/22/2017 433116 505.00 Five Hundred Five AND 001100 Dollars Pay to the order of. VOID IF NOT CASHED WITHIN 60 DAYS WITHIN DATE OF ISSUE NC DEPT OF ENVIRONMENTAL QUALITY 614331L611' 405310ii2D: 0005ii254ditEl211' r Permit Number: '5 b3 4411 v q01 (to be provided by DIVQ) Drainage Area Number: I - Bioretention 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 integrity of structures, safety of the public, and the removal efficiency of the BMP. Important operation and maintenance procedures: - Immediately after the bioretention cell is established, the plants will be watered twice weekly if needed until the plants become established (commonly six weeks). - Snow, mulch or any other material will NEVER be piled on the surface of the bioretention cell. - Heavy equipment will NEVER be driven over the bioretention cell. - Special care will be taken to prevent sediment from entering the bioretention cell. - Once a year, a soil test of the soil media will be conducted. After the bioretention cell is established, I will inspect it 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 will be kept in a known set location and will be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. BMP element: Potentialproblems:-------- roblems How I will remediate theproblem: The entire BMP Trash/debris is present. Remove the trash/debris. The perimeter of the bioretention cell Areas of bare soil and/or erosive gullies have formed. Regrade the soil if necessary to remove the gully, and then plant a ground cover and water until it is established. Provide lime and a one-time fertilizer application. The inlet device: pipe, The pipe is clogged (if Unclog the pipe. Dispose of the stone verge or swale applicable). sediment off -site. The pipe is cracked or Replace the pipe. otherwise damaged (if applicable). Erosion is occurring in the Regrade the swale if necessary to swale (if applicable). smooth it over and provide erosion control devices such as reinforced turf matting or riprap to avoid future problems with erosion. Stone verge is clogged or Remove sediment and clogged covered in sediment (if stone and replace with clean stone. applicable). Form SW401-Bioretention O&M-Rev.3 Page 1 of 4 BMP element: Potentialproblems: How f will remediate theproblem: The pretreatment area Flow is bypassing Regrade if necessary to route all pretreatment area and/or flow to the pretreatment area. gullies have formed. Restabilize the area after grading. Sediment has accumulated to Search for the source of the a depth greater than three sediment and remedy the problem if inches. possible. Remove the sediment and restabilize the pretreatment area. 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. The bioretention cell: Best professional practices Prune according to best professional vegetation 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 Tree stakes/wires are present it is necessary. _ Remove tree stake/wires (which six months after planting. can kill the tree if not removed). The bioretention cell: Mulch is breaking down or Spot mulch if there are only random soils and mulch has floated away, void areas..Replace whole mulch layer if necessary. Remove the remaining much and replace with triple shredded hard wood mulch at a maximum depth of three inches. Soils and/or mulch are Determine the extent of the clogging clogged with sediment. - remove and replace either just the top layers or the entire media as needed. Dispose of the spoil in an appropriate off -site location. Use triple shredded hard wood mulch at a maximum depth of three inches. Search for the source of the sediment and remedy the problem if possible. An annual soil test shows that Dolomitic lime shall be applied as pH has dropped or heavy recommended per the soil test and meta'.s have accumulated in toxic soils shall be removed, the soil media. disposed of properly and replaced with new lantin media. Form SW401-Bioretention O&M-Rev.3 Page 2 of 4 BMP element: Potentialproblems: How I will remediate theproblem: The underdrain system Clogging has occurred. Wash out the underdrain system. if applicable) The drop inlet Clogging has occurred. Clean out the drop inlet. Dispose of the sediment off -site. The drop inlet is damaged Repair or replace the drop inlet. The receiving water Erosion or other signs of Contact the NC Division of Water damage have occurred at the Quality 401 Oversight Unit at 919- outlet. 733-1786. Form SW40 I -Bioretention O&M-Rev.3 Page 3 of 4 Permit Number: 5 W 4 1 70 q 0 I (to be provided by DIVA 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: THE RESERVE AT REGENTS CENTER - PHASE 2 BMP drainage area number: Print name: Title: ?reSi6Vkt+ Address:165 SOUTH YORK STREET GASTONINA NC 28054 Date: 3laall7 / Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sole and a resident of the subdivision has been named the president. I• . �-nAla F. -fld a Notary Public for the State of N�or_ktC�"r�lin7�a_ 1',�"County of C3,'�$j� do hereby certify that I�L1 �CL_� • Igo! 1, h&� T%—__ personally appeared before me this 40 day of �j�r({1 , and acknowledge the due execution of the forgoing bioretention maintenance requirements. Witness my hand and official seal. NOTARY. PUBLIC SEAL My commission expires Form SW401-Bioretention I&M-Rev.2 Page 4 of 4 Permit Number: Swy1 014ul (Io be provided by DWQ) Drainage Area Number:'L Bioretention 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 integrity of structures, safety of the public, and the removal efficiency of the BMP. Important operation and maintenance procedures: - Immediately after the bioretention cell is established, the plants will be watered twice weekly if needed until the plants become established (commonly six weeks). - Snow, mulch or any other material will NEVER be piled on the surface of the bioretention cell. - Heavy equipment will NEVER be driven over the bioretention cell. - Special care will be taken to prevent sediment from entering the bioretention cell. - Once a year, a soil test of the soil media will be conducted. After the bioretention cell is established, I will inspect it 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 will be kept in a known set location and will be available upon request. Inspection activities shall be performed as follows, Any problems that are found shall be repaired immediately. BMP element: Potentialproblems: I Now I will remediate theproblem: The entire BMP Trash/debris is presWt. Remove the trash/debris. The perimeter of the bioretention cell Areas of bare soil and/or erosive gullies have formed. Regrade the soil if necessary to remove the gully, and then plant a ground cover and water until it is established. Provide lime and a one-time fertilizer application. The inlet device: pipe, The pipe is clogged (if Unclog the pipe. Dispose of the stone verge or swale applicable). sediment off -site. The pipe is cracked or Replace the pipe. otherwise damaged (if applicable). Erosion is occurring in the Regrade the swale if necessary to swale (if applicable). smooth it over and provide erosion control devices such as reinforced turf matting or riprap to avoid future problems with erosion. Stone verge is clogged or Remove sediment and clogged covered in sediment (if stone and replace with clean stone. applicable). Form SW401-Bioretention O&M-Rev.3 Page I of 4 BMP element: Potentialproblems: How I will remediate theproblem: The pretreatment area Flow is bypassing Regrade if necessary to route all pretreatment area and/or flow to the pretreatment area. gullies have formed. Restabilize the area after grading. Sediment has accumulated to Search for the source of the a depth greater than three sediment and remedy the problem if inches. possible. Remove the sediment and restabilize the pretreatment area. 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. The bioretention cell: vegetation Best professional practices show that pruning is needed Prune according to best professional 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. Tree stakes/wires are present Remove tree stake/wires (which _ six months after planting. can kill the tree if not removed). The bioretention cell: soils and mulch Mulch is breaking down or has floated away. Spot mulch if there are only random void areas. Replace whole mulch layer if necessary. Remove the remaining much and replace with triple shredded hard wood mulch at a maximum depth of three inches. Soils and/or mulch are Determine the extent of the clogging clogged with sediment. - remove and replace either just the top layers or the entire media as needed. Dispose of the spoil in an appropriate off -site location. Use triple shredded hard wood mulch at a maximum depth of three inches. Search for the source of the sediment and remedy the problem if possible. An annual soil test shows that Dolomitic lime shall be applied as pf? has dropped or heavy recommended per the soil test and metals have accumulated in toxic soils shall be removed, the soil media. disposed of properly and replaced _ with new plariting media. Form SW401-Bioretention O&M-Rev.3 Page 2 of 4 BMP element: Potentialproblems: How I will remediate theproblem: The underdrain system Clogging has occurred. Wash out the underdrain system. if applicable) The drop inlet Clogging has occurred. Clean out the drop inlet. Dispose of the sediment off -site. The drop inlet is damaged Repair or replace the drop inlet. The receiving water Erosion or other signs of Contact the NC Division of Water damage have occurred at the Quality 401 Oversight Unit at 919- outlet. 733-1786. Form SW401-Bioretention O&M-Rev.3 Page 3 of 4 Permit Number: SW 41 "/ D`T��_ (to he provided by DW ) 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 name: THE RESERVE AT REGENTS CENTER - PHASE 2 BMP drainage area number: Address:165 SOUTH YORK STREET GASTONINA NC 28054 Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. I, 11�(n�A_ F. 5hada , a Notary Public for the State of jy (� Ca✓Dfuta County of &a,.sfmt,0 , do hereby certify that {-feym alA F. /�-f1� C r— personally appeared before me this '70 day of WayLk AD17 , and acknowledge the due execution of the forgoing bioretention maintenance requirements. Witness my hand and official seal, NOTARY PUBLIC SEAL My commission expires_O/O Form SW401-Bioretention I&M-Rev. 2 Page 4 of 4 1 Permit Number.: W Al I (to be grovi0ed by OK/0) NCD`ENR qr, Q'lJaN STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM BIORETENT10N CELL SUPPLEMENT This form must be filled out, printed and submitted. The Required Items Checklist (Part III) must be printed, filled out and submitted along with all of the required information. I. PROJECT INFORMATION Project name The Reserve at Regents Center Phase 2 Contact name Thomas R. (Rich) Grover, Jr., PE Phone number (336) 8865523 Date March 21, 2017 Drainage area number 1 II. DESIGN INFORMATION Site Characteristics Drainage area 225,976 f12 Impervious area 114,718 h2 - Percent impervious 50.8% % Design rainfall depth 1.0 inch Peak Flow Calculations Is preipost control of the 1-yr, 24-hr peak flow required? y (Y or N) 1-yr, 24-hr runoff depth 2,86 in t yr, 24-hr intensity --------- 0.119 in/hr �00"I f f ho horrrry Pre -development 1-yr, 24-hr peak flow 8,500 ft'/sec �A�"�(t�......... O `t3 Post -development 1-yr, 24-hr peak flow 13.200 ft'Isec Q�J C ESSI•' 'Z G - +r'ty i Pre/Post 1.yr, 24-hr peak control 4.700 ft /sec �'; Q� 1� , Storage Volume: Non-SAWaters ew -��"'`Minimum volume required9,555.0 (tsK,(GVolume provided 9,607.8ft3OK /�,,•Q,.� Storage Volume: SA Waters �) J,+ 1.5" runoff volume It°q rG`�i.J`d Pre -development 1-yr, 24-hr runoff 3 /q Post -development 1-yr, 24-hr runoff At 3 /2t I I� Minimum volume required p it 1 Volume provided (IJ Cell Dimensions Pending depth of ureter 12 inches OK Pending depth of water 1.00 ft Surface area of the lop of the bioretention cell ' 4,664.0 111 ON Length, 88 it OK Width. 53 ft OK -or- Radius ft - Media and Soils Summary Drawdown time, ponded volume 12 hr OK Drawdown time, to 24 inches below surface 12 hr OK Drawdown time, total: _ 24 hr In -situ soil: Soil permeability 0.20 in/hr Insufficient. Increase infiltration rate or include underdrains. Planting media soil: Soil permeability 0.52 iWhr OK Soil composition Sand (by volume) 85% OK % Fines (by volume) -I 0TOK %Organic (by volume) _ 5% OK Total: 100% Phosphorus Index (P-Index) of media 30 (unitless) OK Form SW401-13ioretention-Rev.8 June 25, 2010 Parts I and 11, oesign Summary, Page I o1 2 1. ' Permit Number:___ (to be Provided by r)WO) Basin Elevations Temporary pool elevation 669.81 fmsl Type of bioretention cell (answer "Y" to only one of the two following questions): Is this a grassed cell? _ (Y or N) OK Is this a cell with Ireeslshrubs? n (Y or N) Planting elevation (top of the mulch or grass sod layer) 668.81 fmsl Depth of mulch 0 inches Insufficient mulch depth, unless Installing grassed cell. Bottom of the planting media soil 666.81 fmsl Planting media depth 2 ft Depth of washed sand below planting media soil 0.33 ft Are underdrains being installed? y (Y or N) How many clean out pipes are being installed? 9 OK What factor of safety is used for sizing the underdrains? (See BMP Manual Section 12.3.6) 4 OK Additional distance between the bottom of the planting media and the bottom of the cell to account for underdrains 1 ft Bottom of the cell required 665.48 fmsl SHWT elevation 661 fmsl _ Distance from bottom to SHWT 4.48 it OK Internal Water Storage Zone (IWS) Does the design include IWS n (Y or N) Elevation of the top of the upturned elbow 0_ fmsl Separation of IWS and Surface 668.81 It OK Planting Plan Number of tree species 0 Number of shrub species Number of herbaceous groundcover species Additional Information Does volume in excess of the design volume bypass the bioretention cell? Y Y or N ( ) OK Does volume in excess of the design volume flow evenly distributed through a vegetated filler? Y or N Y ( ) OK What is the length of the vegetated filter? it Does the design use a level spreader to evenly distribute flow? N (Y or N) Show how flow is evenly distributed. Is the SNIP located at least 30 feet from surface waters (50 feet if SA waters)? Y (Y or N) OK Is the BMP located al least 100 feet from water supply wells? Y (Y or N) OK Are the vegetated side slopes equal to or less than 3.17 Y (Y or N) OK Is the BMP located in a proposed drainage easement with access to a public Right of Way (ROW)? y (Y or N) OK Inlet velocityfrom treatments stem ( system) 9.1 ft/sec Insufficient inlet velocity unless energy dissipating devices are being used. Is the area surrounding the cell likely to undergo development in the future? N NY or ( ) OK Are the slopes draining to the bioretention cell greater than 20%? N (Y or N) OK Is the drainage area permanently stabilized? Y (Y or N) OK Pretreatment Used (Indicate Type Used with an "X" In the shaded cell) Gravel and grass (8'Inches gravel followed by 3-5 it of grass) Grassed swale OK Forebay X Other Form SW401-Bioretention-Rev.8 June 25, 2010 Parts I and 11. Design Summary, Page 2 of 2 :r Permit Number: (fa 7e promtled by UWOJ ��L- NCDENR STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM BIORETENTION CELL 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. Project name Contact name Phone number Dale Drainage area number The Reserve at Regents Center Phase 2 Thomas R. (Rich) Glover, Jr., PE (336)886-5523 March 21, 2017 II. DESIGN INFORMATION — —� Site Characteristics Drainage area (t� Impervious area _ ___ ___56,628 T 39,419 fit Percent impervious 69.6% % Design rainfall depth 1.0 inch Peak Flow Calculations Is pre/post control of the 1-yr, 24-hr peak flow required? yYwr y (Y or N)"MKy, CAR� 1-yr, 24-hr runoff depth 2.86 in r 1- r, 24-m intensh Y Y Q�••FE�SfO••tiy�r 0.119 inlhr Z tp Pre -development 1-yr, 24-hr peak flow 1.860 (t'/sec ' QUA S% Post -development 1-yr, 24-hr peak flow 2.940 ft'/sec !,I Pre/Post 1-yr, 24-hr peak control 1.080 Wised S 2 Storage Volume: Non -SA Waters Minimum volume required 3,192.0 ' °%•r"� J r flJ Volume provided P �• V4 v+ 3,230.t f( OK WIwYUgw Storage Volume: SA Waters 1.5' runoff volume it Pre -development 1-yr, 24-hr runoff it Post -development 1-yr, 24-hr runoff it Minimum volume required 0 it Volume provided Ili Cell Dimensions Pending depth of water 12 inches OK Pending depth of water 1.00 ft Surface area of the top of the bioretention cell 1,568.0 ft2 OK Length: 56 it OK Width: 28 it OK -or- Radius it Media and Soils Summary Drawdown time, ponded volume 12 hr OK Drawdown time, to 24 inches below surface 12 hr OK Drawdown time, total, 24 hr In -situ soil: Soil permeability 0,20 in/m Insuflicient. Increase infiltration rate or include underdrains. Planning media soil: Soil permeability 0.52 in/hr OK Soil composition Sand (by volume) 85% OK % Fines (by volume) 10% OK % Organic (by volume) 5% OK Total: 100% Phosphorus Index (P-Index) of media 30 (unilless) OK Form SW401-bioretention-Rev.s June 25, 2010 Parts I and 11. Design Summary, Page 1 of 2 i Basin Elevations Temporary pool elevation Type of bloretention cell (answer "Y" to only one of the two following questions): Is this a grassed cell? Is this a cell with trees/shrubs? Planting elevation (top of the mulch or grass sod layer) Depth of mulch Bottom of the planting media soil Planting media depth Depth of washed sand below planting media soil Are underdrains being installed? How many clean out pipes are being installed? What factor of safely is used for sizing the underdrains? (See BMP Manual Section 12.3.6) Additional distance between the bottom of the planting media and the bottom of the cell to account for underdrains Bottom of the cell required SHWT elevation Distance from bottom to SHWT Internal Water Storage Zone (IWS) Does the design include IWS Elevation of the top of the upturned elbow Separation of IWS and Surface Planting Plan Number of tree species Number of shrub species Number of herbaceous groundcover species Additional Information Does volume in excess of the design volume bypass the bioretenlion cell? Does volume in excess of the design volume flow evenly distributed through a vegetated filter? What is the length of the vegetated filter? Does the design use a level spreader to evenly distribute flow? Is the BMP located at least 30 feet from surface waters (50 feel if SA waters)? Is the BNIP located at least 100 feet from water supply wells? Are the vegetated side slopes equal to or less than 3:1? Is the BMP located in a proposed drainage easement with access to a public Right of Way (ROW)? Inlet velocity (from treatment system) Permit Number._ D'A (to bo p ovea_C by r0_) 663,11 fmsl _Y(YorN) OK n (Y or N) 662.11 fmsl 0 inches Insufficient mulch depth, unless installing grassed cell. 660.11 fmsl 2 it 0.33 ft KMI 2 OK 4 OK 1 ft 658.78 fmsl 656 fmsl 2.78 it OK n (Y or N) 0 fmsl 662.11 It OK 0 0 Y (Y or N) OK Y (Y or N) OK h N (Y or N) Show, how flow is evenly distributed. Y (Y or N) OK _ Y_(YorN) OK Y (Y or N) OK Y (Y or N) OK 7 ft/sec Insufficient inlet velocity unless energy dissipating devices are being used, Is the area surrounding the cell likely to undergo development in N (Y or N) OK the future? Are the slopes draining to the bioretention cell greater than 21 N (Y or N) OK Is the drainage area permanently stabilized? Y (Y or N) OK Pretreatment Used (Indicate Type Used with an "X' in the shaded cell) Gravel and grass (8inches gravel followed by 3-5 ft of grass) Grassed swale OK Forebay X Other Form SW401-eioretention-Rev.8 June 25, 2010 Parts I and I. Design Summary, 1181)o 2 or 2