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HomeMy WebLinkAboutSW8090815_CURRENT PERMIT_20201120STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW8 d 9 0 $15 DOC TYPE ® CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE 2 o 2 o l 1 z 0 YYYYMMDD ROY COOPER Governor MICHAEL S. REGAN Secretary BRIAN WRENN Director November 20, 2020 NORTH CAROLINA Environmental Quality Mr. Philip J. Rizzo, Vice President Mid -Atlantic Military Family Communities, LLC Lincoln Military Housing 7400 Dailey Lane Camp Lejeune, NC 28547 Subject: Permit Renewal State Stormwater Management Permit No. SW8 090815 Heroes Manor Residential Development High Density Commercial Wet Detention Pond Project Onslow County Dear Mr. Rizzo: The Wilmington Regional Office received a complete 8 year Stormwater Management Permit Renewal Application for the subject project on. The Division is hereby notifying you that permit SW8 090815 has been renewed on November 20, 2020, and shall be effective until October 22, 2028. For your records, please find enclosed a renewed, updated, and re -issued permit and a copy of the renewal application. Please keep this permit on file at all times. Please note that the renewed, updated, and re -issued permit does not impose new or different terms; it merely restates some of the previous terms to provide you with a better understanding of your obligations under the permit. The renewal and reissuance of this stormwater permit does not imply that the site is currently in compliance with the terms and conditions of this state stormwater permit. The plans originally approved on February 2, 2010 and most recently modified on May 17, 2012, will remain in full force and effect in accordance with the regulations set forth in Title 15A NCAC 2H.1000. This permit is subject to the conditions and limitations as specified therein. Please pay special attention to the conditions listed in this permit regarding the Operation and Maintenance of the BMP(s), recordation of deed restrictions, procedures for changes of ownership, transferring the permit, and renewing the permit. Failure to establish an adequate system for operation and maintenance of the stormwater management system, to record deed restrictions, to transfer the permit, or to renew the permit, will result in future compliance problems. If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing by filing a written petition with the Office of Administrative Hearings (OAH). The written petition must conform to Chapter 150B of the North Carolina General Statutes, and must be filed with the OA14 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. If you have any questions, need additional copies of the permit or approved plans, please contact Daniel Sams in the Wilmington Regional Office, at (910) 796-7215 or dan.sams@ncdenr.gov. Sincerely, '*ICJ Brian Wrenn, Director Division of Energy, Mineral and Land Resources Enclosures: Renewal Application Documents DES/dan:\\\StormWater\Permits k Projects\2009�090815 1-ID\2020 11 permit 090815 cc: Commanding Officer MCB Camp Lejeune, Neal Paul, Deputy Public Works Officer Wilmington Regional Office Stormwater File North Carolina Department of Environmental Quality I Division of Energy. Mineral and Land Resources Wilmington Regional Office 1 127 Cardinal Drive Extension I Wilmington, North Carolina 28405 FlN C1� I.WP �� STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF ENERGY, MINERAL AND LAND RESOURCES STATE STORMWATER MANAGEMENT PERMIT HIGH DENSITY COMMERCIAL 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 Mid -Atlantic Military Family Communities LLC Heros Manor Residential Development Brewster Blvd, Camp Lejeune, Onslow County FOR THE construction, operation and maintenance of two (2) wet detention ponds in compliance with the provisions of 15A NCAC 2H .1000 and Session Law 2008-211 (hereafter collectively referred to as the "stormwater rules') 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 ("Division" or "DEMLR") and considered a part of this permit. This permit shall be effective from the date of issuance until October 22, 2028, and shall be subject to the following specified conditions and limitations: I. DESIGN STANDARDS This permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data. 2. This stormwater system has been approved for the management of stormwater runoff as described in Section 1.9 of this permit. The stormwater controls labeled Pond 1 and Pond 2 have been designed to handle the runoff from 2,425,008 and 196,887 square feet of built -upon area, respectively. 3. The additional bio-retention cell shown on the plans has not been demonstrated to meet the State Stormwater BMP design requirements and therefore is not considered a part of the approved state stormwater treatment system. This additional measure is incorporated only by reference and is not enforceable parts of the permit. 4. A 50' wide vegetative buffer must be provided and maintained adjacent surface waters, measured horizontally from and perpendicular to the normal pool of impounded structures, the top of bank of both sides of streams and rivers and the mean high water line of tidal waters. A level spreader has been provided to ensure diffuse flow into and through the buffer as required by Session Law 2008-211. 5. A vegetated filter strip is not required for this wet detention pond as it has been designed to remove 90% of the total suspended solids. 6. The tract will be limited to the amount of built -upon area indicated in this permit, and per approved plans. The built -upon area for the future development within the drainage areas of Pond 1 and Pond 2 is limited to 45,400 and 20,000 square feet, respectively. State Stormwater Management Systems Permit No. SW8 090815 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. 8. The runoff from all built -upon area within the permitted drainage area(s) of this project must be directed into the permitted stormwater control system. 9. The following design criteria have been provided in the wet detention pond and must be maintained at design condition: Pond 1 Pond 2 a. Drainage Area, acres: Onsite, ft2: Offsite, ftz: 166.41 7,231,522 17,458 13.29 578,796 0 b. Total Built -Upon Area, ftz: Onsite, ft2: Offsite, ft2: 2,425,008 2,422,117 2,891 196,877 196,877 0 c. Design Storm, inches: 1.5 1.5 d. Average Pond Design Depth, ft: 6.0 3.0 e. TSS removal efficiency: 90% 90% f. Permanent Pool Elevation, FMSL: 11.0 18.5 g. Permanent Pool Surface Area, ft2: 387,291 29,176 h. Permanent Pool Volume ft3: 2,329,455 91,245 i. Forebay Volume, ft3: 431,319 18,044 j. Storage Volume, ft3: 1,237,891 70,371 k. Temporary Storage Elevation, FMSL: 14.0 20.5 I. Pre-dev. 1 r-24 hr. discharge rate, cfs: 8.81 3.04 m. Controlling Orifice, inch H pipe: &0 2.5 n. Orifice Flowrate, cfs: 0.91 0.13 o. Fountain Horsepower, HP: 3 1/3 . Receiving Stream / River Basin Morgan Bay / White oak g. Stream Index Number: 19-18 r. Classification of Water Body: Sc fl1&1144C1ABill 14xi1;KiZi1T, JaI_:[444 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. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. The permittee shall, at all times, provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency. The signed and approved Operation and Maintenance Agreement must be followed in its entirety and maintenance must occur at the scheduled intervals. Records of maintenance activities must be kept and made available upon request to authorized personnel of DWQ. The records will indicate the date, activity, name of person performing the work and what actions were taken. A copy of the lease agreement that outlines Mid -Atlantic Military Family Communities, LLC responsibilities for this stormwater system, must be kept with the permit and maintenance activity records. Page 2 of 5 State Stormwater Management Systems Permit No. SW8 090815 6. Decorative spray fountains will be allowed in the stormwater treatment system, subject to the following criteria: a. The minimum permanent pool volume is 30,000 cubic feet b. The fountain must draw its water from less than 2' below the permanent pool surface. c. Separated units, where the nozzle, pump and intake are connected by tubing, may be used only if they draw water from the surface in the deepest part of the pond. d. The fountain may not be placed into the forebay. e. The falling water from the fountain must be centered in the pond, away from the shoreline. f. The maximum horsepower for a fountain in Pond 1 and Pond 2 are 3 and 1/3 horsepower, respectively. 7. The facilities shall be constructed as shown on the approved plans. 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. 8. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, a certification must be received from an appropriate designer for the system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation. Any deviations from the approved plans and specifications must be noted on the Certification. A modification may be required for those deviations. 9. 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. 10. Access to the stormwater facilities for inspection and maintenance shall be maintained via appropriate recorded easements at all times. 11. No person or entity, including the permittee, shall alter any component shown in the approved plans and specifications. Prior to the construction of any modification to the approved plans, the permittee shall submit to the Director, and shall have received approval for modified plans, specifications, and calculations including, but not limited to, those listed below. For changes to the project or SCM that impact the certifications, a new or updated certification(s), as applicable, will be required and a copy must be submitted to the appropriate DEQ regional office upon completion of the modification: a. Any modification to the approved plans and specifications, regardless of size including the SCM(s), BUA, details, etc. b. Redesign or addition to the approved amount of BUA or to the drainage area. C. Further development, subdivision, acquisition, lease or sale of any, all or part of the project and/or property area as reported in the approved plans and specifications. d. Altering, modifying, removing, relocating, redirecting, regrading, or resizing of any component of the approved SCM(s), the stormwater collection system and/or vegetative conveyance shown on the approved plan. e. The construction of any allocated future BUA. f. The construction of any permeable pavement, #57 stone area, public trails, or landscaping material to be considered a permeable surface that were not included in the approved plans and specifications. g. Other modifications as determined by the Director. Page 3 of 5 State Stormwater Management Systems Permit No. SW8 090815 12. Prior to the construction of any permitted future areas shown on the approved plans, the permittee shall submit final site layout and grading plans to the Division for approval. 13. It is the responsibility of the permit holder, Mid -Atlantic Military Family Communities, LLC, to notify DWQ of any changes in ownership and request an ownership/name change for the stormwater permit. However, please be reminded that if the lease agreement or contract between Mid -Atlantic Military Family Communities, LLC and the Department of the Navy is dissolved, cancelled or defaults, and DWQ is not notified by Mid -Atlantic Military Family Communities, LLC to transfer the permit, then the responsibility for permit compliance reverts back to the property owner. As the property owner, US MCB Camp Lejeune must notify DWQ immediately of the permit ownership change and submit a completed Name/Ownership form to DWQ within 30days. Otherwise US MCB Camp Lejeune will be operating a stormwater treatment facility without a valid permit. This 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, being taken against the property owner, US MCB Camp Lejeune. 14. The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements of the permit. Within the time frame specified in the notice, the permittee shall submit a written time schedule to the Director for modifying the site to meet minimum requirements. The permittee shall provide copies of revised plans and certification in writing to the Director that the changes have been made. 15. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. A copy of the approved plans and specifications shall be maintained on file by the Permittee at all times. III1tel4.14CL1RIK61111 9111111161.l,'i This permit is not transferable to any person or entity except after notice to and approval by the Director. The permittee shall submit a completed and signed "Permit Transfer Application Form" (available on the Division website) accompanied by the required fee and supporting documentation as listed on the form, to the Division at least 60 days prior to any one or more of the following events: a. The sale or conveyance of the project area in whole or in part, except in the case of an individual sale that is made subject to the recorded deed restrictions and protective convenants; b. Dissolution of the partnership, corporate, or LLC entity, subject to NCGS 55-14-01r or NCGS 57D-6-07 and 08; c. Bankruptcy; d. Foreclosure, subject to the requirements of Session Law 2013-121. 2. The permittee is responsible for compliance with all permit conditions until such time as the Division approves the transfer request. Neither the sale of the project, in whole or in part, nor the conveyance of common area to a third party constitutes an approved transfer of the stormwater permit. 3. Any individual or entity found to be in noncompliance with the provisions of this stormwater management permit or the requirements of the Stormwater rules is subject to enforcement procedures as set forth in NCGS 143 Article 21. 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. Page 4 of 5 State Stormwater Management Systems Permit No. SW8 090815 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 DEQ 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 controls 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. Current Permittee Name or Address Changes: The permittee shall submit a completed "Permit Information Update Application Form" (available on the Division website) to the Division within 30 days to making any one or more of the following change: a. A name change of the current permittee; b. A name change of the project, c. A mailing address change of the permittee. 11. The issuance of this permit does not prohibit the Director from reopening and modifying the permit, revoking and reissuing the permit, or terminating the permit as allowed by the laws, rules and regulations contained in Session Law 2007-1967, Title 15A NCAC 2H.1000, and NCGS 143-215.1 et. al. 12. A permit renewal request must be submitted at least 180 days prior to the expiration date of this permit. The renewal request must include the appropriate application, documentation and the processing fee as outlined in Title 15A NCAC 02H.1045(3). Permit renewed this the 20th day of November 2020. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION Division of Energy, Mineral and Land Resources By Authority of the Environmental Management Commission Page 5 of 5 G G Permit Number: o � fe o / (to be provided by DWQ) Drainage Area Number: Filter Strip, Restored Riparian Buffer and Level Spreader 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 maintenance procedures: — Immediately after the filter strip is established, any newly planted vegetation will be watered twice weekly if needed until the plants become established (commonly six weeks). — Once a year, the filter strip will be reseeded to maintain a dense growth of vegetation — Stable groundcover will be maintained in the drainage area to reduce the sediment load to the vegetation. — Two to three times a year, grass filter strips will be mowed and the clippings harvested to promote the growth of thick vegetation with optimum pollutant removal efficiency. Turf grass should not be cut shorter than 3 to 5 inches and may be allowed to grow as tall as 12 inches depending on aesthetic requirements (NIPC, 1993). Forested filter strips do not require this type of maintenance. — Once a year, the soil will be aerated if necessary. — Once a year, soil pH will be tested and lime will be added if necessary. After the filter strip is established, it will be inspected quarterly and within 24 hours after every storm event greater than 1.0 inch (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: Potentialproblem: How I will remediate theproblem: The entire filter strip Trash/debris is present. Remove the trash/debris. system The flow splitter device (if applicable) The flow splitter device is clogged. Unclog the conveyance and dispose of any sediment off -site. The flow splitter device is Make any necessary repairs or damaged. replace if damage is too large for repair. APR 2 0 ZU1Z FAY: Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 1 of 3 BMP element: Potentialproblem: How I will remediate theproblem: The swale and the level lip The swale is clogged with sediment. Remove the sediment and dispose of it off -site. The level lip is cracked, Repair or replace lip. settled, undercut, eroded or otherwise damaged. There is erosion around the Regrade the soil to create a berm end of the level spreader that that is higher than the level lip, and shows stormwater has then plant a ground cover and bypassed it. water until it is established. Provide lime and a one-time fertilizer a22lication. Trees or shrubs have begun Remove them. to grow on the swale or just downslo e of the level lip. The bypass channel Areas of bare soil and/or Regrade the soil if necessary to erosive gullies have formed. remove the gully, and then reestablish proper erosion control. Turf reinforcement is damaged or ripap is rolling downhill. Study the site to see if a larger bypass channel is needed (enlarge if necessary). After this, reestablish the erosion control material. The filter strip Grass is too short or too long Maintain grass at a height of if applicable). 2-1mr—oximately three to six inches. Areas of bare soil and/or Regrade the soil if necessary to erosive gullies have formed. remove the gully, and then plant a ground cover and water until it is established. Provide lime and a one-time fertilizer application, Sediment is building up on Remove the sediment and the filter strip, restabilize the soil with vegetation if necessary. Provide lime and a one- time fertilizer application. Plants are desiccated. Provide additional irrigation and fertilizer as needed. 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. Nuisance vegetation is Remove vegetation by hand if choking out desirable species. possible. If pesticide is used, do not allow it to get into the receiving water. The receiving water Erosion or other signs of Contact the NC Division of Water damage have occurred at the Quality local Regional Office, or the outlet. 1 401 Oversight Unit at 919-733-1786. Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 APR 2 0 101Z Page 2 of 3 v Permit (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. 1 agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project name:Heroes Manor Residential Development BMP drainage area number:BMP #2 Print name:R Jarl Bliss Title:Vice President Address:200 Fairbrook Drive Suite 101 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,f_'A-Yh M-U4 A Q-4n&'a" , a Notary Public for the State of "' G , County of FYY �prl d( , do hereby certify that r1 Tar k St' personally appeared before me this �844 day of 111 C VV 4\ , A0 t 61N , and acknowledge the due execution of the forgoing filter strip, riparian buffer, and/or level spreader maintenance requirements. Witness my hand and official seal, ............ IPPY PU9' act ; Q • O REG # G . IA = 121739 i o : COMMISSION ' < _ EXPIRES Ze �?� •.12/31/2012 Q ' o,y�fALTH OE,.•�,• SEAL My commission expires 1 � I I Z FAPR 2 0 niz Form SWU40I-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 3 of 3 . � . .,�.. „� .�:.�„ ,: s�, :�`��., �� � � ��, �� '/ Permit Number: (to be provided by DWQ) Drainage Area Number: Wet Detention Basin Operation and Maintenance Agreement l 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. The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the vegetated filter if one is provided. This system (check one): ❑ does ® does not incorporate a vegetated filter at the outlet. This system (check one): ❑ does ® does not incorporate pretreatment other than a forebay. Important maintenance procedures: — Immediately after the wet detention basin is established, the plants on the vegetated shelf and perimeter of the basin should be watered twice weekly if needed, until the plants become established (commonly six weeks). — No portion of the wet detention pond should be fertilized after the first initial fertilization that is required to establish the plants on the vegetated shelf. — Stable groundcover should be maintained in the drainage area to reduce the sediment load to the wet detention basin. — If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through the emergency drain should be minimized to the maximum extent practical. — Once a year, a darn 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: Potentialproblem: How I will remediate theproblem: The entire BMP Trash/debris is present. Remove the trash/debris. The perimeter of the wet Areas of bare soil and/or Regrade the soil if necessary to detention basin erosive gullies have formed. remove the gully, and then plant a ground cover and water until it is established. Provide lime and a one-time fertilizer application. Vegetation is too short or too Maintain vegetation at a height of long. approximately six inches. Form SW401-Wet Detention Basin O&M-Rev.4 7APR 2 0 2012 l-_ Page 1 of Permit Number: (to be provider! by DWQ) Drainage Area Number: BMP element: Potentialproblem: How I will remediate theproblem: The inlet device: pipe or The pipe is clogged. Unclog the pipe. Dispose of the swale sediment off -site. The pipe is cracked or Replace the pipe. otherwise damaged. Erosion is occurring in the Regrade the swale if necessary to swale. smooth it over and provide erosion control devices such as reinforced turf matting or riprap to avoid future problems with erosion. The forebay Sediment has accumulated to Search for the source of the a depth greater than the sediment and remedy the problem if original design depth for possible. Remove the sediment and sediment storage. dispose of it in a location where it will not cause impacts to streams or the BMP. Erosion has occurred. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems. Weeds are present. Remove the weeds, preferably by hand. If pesticide is used, wipe it on the plants rather than s rayin . The vegetated shelf Best professional practices Prune according to best professional show that pruning is needed practices to maintain optimal plant health. Plants are dead, diseased or Determine the source of the dying. problem: soils, hydrology, disease, etc. Remedy the problem and replace plants. Provide a one-time fertilizer application to establish the ground cover if a soil test indicates it is necessary. Weeds are present. Remove the weeds, preferably by hand. If pesticide is used, wipe it on the plants rather than spraying. The main treatment area Sediment has accumulated to Search for the source of the a depth greater than the sediment and remedy the problem if original design sediment possible. Remove the sediment and storage depth. dispose of it in a location where it will not cause impacts to streams or the BMP. Algal growth covers over Consult a professional to remove 50% of the area. and control the algal growth. Cattails, phragmites or other Remove the plants by wiping them invasive plants cover 50% of with pesticide (do not spray). the basin surface. Form SW401-Wet Detention Basin O&M-Rev.4 APR 2 0 ZO1Z Page 2 of 4 Permit Number: (to he provided by D IPQ) Drainage Area Number: BMP element: Potentialproblem: How I will remediate theproblem: The embankment Shrubs have started to grow Remove shrubs immediately. on the embankment. Evidence of muskrat or Use traps to remove muskrats and beaver activity is present. consult a professional to remove beavers. A tree has started to grow on Consult a dam safety specialist to the embankment. remove the tree. An annual inspection by an Make all needed repairs. appropriate professional shows that the embankment needs repair. if applicable) The outlet device Clogging has occurred. Clean out the outlet device. Dispose of the sediment off -site. The outlet device is damaged Repair or replace the outlet device. The receiving water Erosion or other signs of Contact the local NC Division of damage have occurred at the Water Quality Regional Office, or outlet. the 401 Oversight Unit at 919-733- 1786. The measuring device used to determine the sediment elevation shall be such that it will give an accurate depth reading and not readily penetrate into accumulated sediments. When the permanent pool depth reads 7 feet in the main pond, the sediment shall be removed. When the permanent pool depth reacts 7 feet in the forebay, the sediment shall be removed. Sediment Removal Bottom BASIN DIAGRAM (fill in the blanks) 4 i Pe manen\ ---------------- Volume t 2 -ft Min. Sediment Storage POREBAY Form SW401-Wet Detention Basin O&M-Rev.4 Permanent Pool Elevation I I Pool Sediment Removal Elevation 4 Volum, Bottom Elevation MAIN POND r.- MAY 1 1 L012 Page of I-ft i m. Sediment Storage Permit (to be provided by DWQ) 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:FIcrocs Manor Residential Development BMP drainage area number:BMP # I Print namc:R Jar] Bliss Title:Vice President Address:200 Fairbrook Drive Suite 101 Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. 1. T 0 'e fY\ &Mdbi, a Notary Public for the State of yl r'C( Y1 f 0� , County of 'a�.e r% C(C , do hereby certify that v ul RTar l 13(1 SS personally appeared before me this 93n day of (Y)dorc)l pZU 14 , and acknowledge the due execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal, IE tM 'It �Ft ....... :, -q '�,� r:•O REG S 2 121739 O COMMISSIOM <= ' EXPIRES 2 — LTVi '.t,tttt,ttttt. SEAL My commission expires )?q 31) 2U 11— Form SW401-Wet Detention Basin O&M-Rev.4 APR 2 0 LUII 3Y: — - Page 4 of 4 Permit Number: (m be proi�ided bj,DWQ) Drainage Area Number: 2 Wet Detention Basin Operation and Maintenance Agreement 1 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. The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the vegetated filter if one is provided. This system (check one): ❑ does ® does not incorporate a vegetated filter at the outlet. This system (check one): ❑ does ® does not incorporate pretreatment other than a forebay. Important maintenance procedures: — Immediately after the wet detention basin is established, the plants on the vegetated shelf and perimeter of the basin should be watered twice weekly if needed, until the plants become established (commonly six weeks). — No portion of the wet detention pond should be fertilized after the first initial fertilization that is required to establish the plants on the vegetated shelf. — Stable groutntcover should be maintained in the drainage area to reduce the sediment load to the wet detention basin. — If the basin nrttst 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: Potentialproblem: Flow I will remediate theproblem: The entire BMI' "bash/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 time and a one-time fertilizer application. Vegetation is too short or too Maintain vegetation at a height of long. I approximately six inches. Form SW401-Wct Detention Basin O&M-Rev.4 F- Page I of 4 APR 2 0 ZU1Z Permit Number: (to be provided br DIVQ) Drainage Area Number: 2 BMP element: Potentialproblem: I -low I will remediate theproblem: The inlet device: pipe or The pipe is clogged. Unclog the pipe. Dispose of the swale sediment off -site. The pipe is cracked or Replace the pipe. ' otherwise damaged. Erosion is occurring in the Regrade the Swale if necessary to Swale. smooth it over and provide erosion control devices such as reinforced turf matting or riprap to avoid future problems with erosion. The forebay Sediment has accumulated to Search for the source of the a depth greater than the sediment and remedy the problem if original design depth for possible. Remove the sediment and sediment storage. dispose of it in a location where it • will not cause impacts to streams or the BMP. Erosion has occurred. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems. Weeds are present. Remove the weeds, preferably by hand. If pesticide is used, wipe it on the plants rather than spraying. The vegetated shelf Best professional practices Prune according to best professional show that pruning is needed practices to maintain optimal plant health. Plants are dead, diseased or Determine the source of the dying. problem: soils, hydrology, disease, etc. Remedy the problem and replace plants. Provide a one-time fertilizer application to establish the ground cover if a soil test indicates it is necessarv. Weeds are present. Remove the weeds, preferably by hand. If pesticide is used, wipe it on the plants rather than s rayin . 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 507. of the area. and control the algal growth. Cattails, phragmites or other Remove the plants by wiping them invasive plants cover 50% of with pesticide (do not spray). the basin surface. Perm SW401-Wet Detention Basin O&M-Rev.4 I - APR 2 0 ZU1Z Page 2of4 Permit Number: (to be provided !m DMQ) Drainage Area Number: BMP element: Potentialproblem: How 1 will remediate theproblem: The embankment Shrubs have started to grow Remove shrubs immediately. on the embankment. Evidence of muskrat or Use traps to remove muskrats and beaver activity is present. consult a professional to remove beavers. A tree has started to grow on Consult a dam safety specialist to the embankment. remove the tree. An annual inspection by an Make all needed repairs. appropriate professional shows that the embankment needs repair. if applicable) The outlet device Clogging has occurred. Clean out the outlet device. Dispose of the sediment off -site. 'Fhe outlet device is damaged Repair or replace the outlet device. The receiving water Erosion or other signs of Contact the local NC Division of damage have occurred at the Water Quality Regional Office, or outlet. the 401 Oversight Unit at 919-733- 1786. The measuring device used to determine the sediment elevation shall be such that it will give an accurate depth reading and not readily penetrate into accumulated sediments. When the permanent pool depth reads 5 feet in the main pond, the sediment shall be removed. When the permanent pool depth reads 5 feet in the forebay, the sediment shall be removed. BASIN DIAGRAM (fill in the blanks) 0 Permanent Pool Elevation 18.5 Sediment Removal F . 13.5 Pe manes Pool Volume Sediment Removal Elevation 13.5 Volume Bottom Elevatim 12 -ft Min. ----------------------------- ----------- ------ Sediment Bottom Elevation 12 I-ft N u Storage Sedimer Storage FORF.BAY MAIN POND Form SW401-Wet Detention Basin O&M-Rev.4 LR a. MQY 1 1 L0�2 Page30f4 BY: H I Permit Number: (to be provided bn DA'Q) 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 clianges to the system or responsible party. Project name:t-Zeroes Manor Residential Development HAVI drainage area number: Print name:R Jarl Bliss Titic:Vice President Address:200 Fairbrook Drive Suite 101 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, DUUC[AS X. AVUC, al- . a Notary Public for the State of' Ush'Lr10%�A County of do hereby certify that R. JA iCL 1,71 TSS personally appeared before me this 87N day of N1/J2CN , Zo / Z , and acknowledge the due execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal, N. SEAL My commission expires l form SW401-Wet Detention Basin O&M-Rev.4 APR 2 0 LUIZ Page of 4 Permit Number. i—G eo ITd K1 5 (to be provided by DWQ) Drainage Area Number: J— 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 integrity of structures, safety of the public, and the removal efficiency of the BMP. The wet detention basin system is defined as the wet detention basin, fi pretreatment including forebays and the vegetated filter if one is provided. W rn This system (check one): �o ❑ does ® does not incorporate a vegetated filter at the outlet. /r1\ m This system (check one): ❑ does ® does not incorporate pretreatment other than a forebay Important maintenance procedures: — Immediately after the wet detention basin is established, the plants on the vegetated shelf and perimeter of the basin should be watered twice weekly if needed, until the plants become established (commonly six weeks). — No portion of the wet detention pond should be fertilized after the first initial fertilization that is required to establish the plants on the vegetated shelf. — Stable groundcover should be maintained in the drainage area to reduce the sediment load to the wet detention basin. — If the basin must be drained for an emergency or to perform 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. v o z BMP element: Potentialproblem: How I will remediate theproblem: The entire BMP Trash/debris is present. Remove the trash/debris. The perimeter of the wet Areas of bare soil and/or Regrade the soil if necessary to detention basin erosive gullies have formed. remove the gully, and then plant a ground cover and water until it is established. Provide lime and a one-time fertilizer application. Vegetation is too short or too Maintain vegetation at a height of long, a p proximately six inches. Form SW401-Wet Detention Basin O&M-Rcv.4 Page l.Of4 D' ; t 52009 BY:____ Permit Number: (to be provided by DWQ) Drainage Area Number: BMP element: Potentialproblem: How I will remediate theproblem: The inlet device: pipe or The pipe is clogged. Unclog the pipe. Dispose of the Swale sediment off -site. The pipe is cracked or Replace the pipe. otherwise damaged. Erosion is occurring in the Regrade the swale if necessary to swale. smooth it over and provide erosion control devices such as reinforced turf matting or riprap to avoid future problems with erosion. The forebay -" Sedimetd has ac zrmulated 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 riot cause impacts to streams or the BMP. Erosion has occurred. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems. Weeds are present. Remove the weeds, preferably by hand. If pesticide is used, wipe it on the plants rather than spraying. The vegetated shelf Best professional practices Prune according to best professional show that pruning is needed practices to maintain optimal plant health. Plants are dead, diseased or Determine the source of the dying. problem: soils, hydrology, disease, etc. Remedy the problem and replace plants. Provide a one-time fertilizer application to establish the ground cover if a soil test indicates it is necessary. Weeds are present. Remove the weeds, preferably by hand. I.r pesticide is used, wipe it on the plants rather than spraying. The main treatment area Sediment has accumulated to Search fur 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 50% of the area. Consult a professional to remove and corm ol the algal growth. Cattails, Phi agmites or other Remove the plants by wiping them invasive plants cover 50% of with pesticide (do not spray). the basin surface. Form SW401-Wct Octcnliun Basin O&M-Rcv.4 ? 5 2009 BY: Permit NumbeM O� t✓ fro be provided by DWQ) Drainage Area Number: BMP element: Potentialproblem: How I will remediate theproblem: The embankment Shrubs have started to grow Remove shrubs immediately. on the embankment. Evidence of muskrat or Use traps to remove muskrats and beaver activity is present. consult a professional to remove beavers. A tree has started to grow on Consult a dam safety specialist to the embankment. remove the tree. An amoral 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 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 _3.5 feet in the main pond, the sediment shall be removed. When the permanent pool depth reads 3.5_ feet in the forebay, the sediment shall be removed. Sediment Removal Bottom BASIN DIAGRAM (flll in the blmrks) \5 f-m ill, nen --------- Volunlc i 6 -li Min. Sctii men Stoaiec FOREBAY Form SW401-Wet Doviniun Basin O&M-Rcc.4 Permanent Pool Elevation I I Pool Sediment Removal Elevation 7.5 Volunro Bottom Elevation 6 1 1 -li Storage MAIN POND RECL"�'r=^D DEC 1 5 20(' Page 3 of 4 t 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. Pmjert name:Lincoln Park Residential Development at Camp Lejeune BMP drainage area Print Tltle:DepinV Public Works Office -- - Note: "Ihe 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. .t I, iiic.�� a Notary Public for the State of AjA/Z /rot , County of '%j/•mot do hereby certify that �✓� (¢:��7c•/ personally appeared before me this day of i�%y%� , and acknowledge the due execution of the forgoing wet detention basin maintenance requirements. Witness illy hand and official seal, zz/' MICE A EONNETTE Notary Public Onslow County BIWO of North Catollno SEAL My commission expires Fbint SN'401-k%,ct Detention Basin 0&M-Rea.4 DEC 1 F 2009 BY: Page 4 oI 4 ViA cauwl:afoa gxbpo: pel 33' S010 8lolo of HOW Gololluo ou)lom ConolA. molo,A bnC11G arICE v POW14EUE P NC DEQ Division of Energy, Mineral and Land Resource's STATE STORMWATER: RECENED PERMIT RENEWAL APPLICATION FORM NOV O ? 2020 DENR-LAND QUALITY in accordance with 15A NCAC 2H 1045131, the current permit holdershali renew their high densityiperr it,180 dags.RPflITTING prior to its expiration. Renewed permits are valid for a period of 8 years per Session Law 2011-398 (SB 781)RECEIVED Section 6O(c). This application form is forpermit renewals only. A. PROJECT INFORMATION NOV 0 4 2020 1. State Stormwater Permit Number. SW 8 090815 NCDE0 2. Project name: Mid -Atlantic Military Family Communities LLC WILMINGTON RO 3. Project street address: Hernes N4anor Residential Development - Brc`astcr Blvd, City: MCB Camp Leivane County: Onslow ZIP: 28542 4. What, if any, changes have been made to the project as permitted? N/A ties 6hang6d from the original approved plans, please complete SINU-101 for a Major Or Minor Modification Application form available at: httpsIldee:ncgar/_aboutldivisions/energv- B. PERMITTEE INFORMATION If changes to the permittee or project name have been made, please complete either the Permit Update form or the Permit Transfer fort available at hlps:l/deo.nc.gov/about/divisions/energy-mineral-land- resourcedenerav-mineral-land=rulesistormwater-omgram/post construction. State Stormwater Permits do not automatically transfer with the sale of the property. 1. Current Permit Holder's Company Name/Organization: Mid -Atlantic Military Family Commnities LLC 2. Signing Official's Name: Philip J. Rizzo 3. Signing Official's Title: Vice President 4. Mailing Address: 4650 Von Karman Avenue City: NgwoortBeach State: CA ZIP: 92660 5. Street Address: 4050 Von Karman Avenue City: Newport Beach State: CA ZIP: 92660 6. Phone: (949) 756-2525 Email: prizzo _Igsi.com Stnrmwater Peanit Rnnpwal Fnrm Pane 1 of 3 NOV G 4 2020 Mav 11, 2018 C. SUBMITTAL REQUIREMENTS Submit the application package to the appropriate DEMLR Regional Office (Coastal, SA Waters) or DEMLR Central Office (Urbanizing Areas Ph 2, USMP, Non -Coastal HOW/ORWJ. Only applications packages that include all required items listed below will be accepted and reviewed. Initial each itim'below to indicate that.the.required,information is provided in the application package: MCT 1. A permit application processing fee of $505.00 payable to NCDEQ.' MCT 2. One original signed hard copy and one electronic copy of this completed form. The signing official named on this application to represent the current permittee must meet one of the following: a. Corporation — a principle executive officer of at least the level of vice-president; b. Limited Liability Company (LLC) — a manager or company official as those terms are defined in G.S. 57D "North Carolina Limited Liability Company Act;" c. Public Entity — a principal executive officer, ranking official, or other duly authorized employee; d. Partnership or limited partnership — the general partner, e. Sole proprietor, or I. Letter of authorization signed by one of the signatories noted in a — e above authorizing the signature of another entity. MCT 3. One hard copy and one electronic copy of recorded documents required by the original permit that have not yet been received by DEMLR, including: deed restrictions, protective covenants, condominiumiplanned community declaration and easements. If the project has been built, include documentation that the maximum BUA per lot or maximum total BUA has not been exceeded. If the project has not been built, include a signed agreement that the final recorded deed restrictions and protective covenants will be submitted at a later date. MCT 4. O&M Agreements, Please select one: ® 1 have a copy of the current recorded O&M Agreement for all SCMs, and I will continue to keep this on file with the permit; or ❑ I do not have a copy of the current recorded 0&M Agreement for all SCMs and am requesting a copy be sent to me. I agree to keep this on file with the permit. MCT 5. Designer Certifications, Please select one: ❑ A copy of the certification(s) confirming that the project was built in accordance with the approved plans have been previously provided to the Division; or ® A copy of the certification(s) confirming that the project was built in accordance with the approved plans are enclosed; or ❑ The project has not yet been built. MCT 6. [IF APPLICABLE] If the project has been built one original hard copy and one electronic copy of a signed, sealed, and dated letter from a licensed professional stating that the SCMs have been inspected, and that they have been built and maintained in accordance with the permit T [IF APPLICABLE] When the permittee is a corporation or a limited liability corporation (LLC): Provide one hard copy and one electronic copy of documentation from the NC Secretary of State, or other official documentation, which supports the titles and positions held by the persons listed in Section C.2 per 15A NCAC 2H. 1043(3)(b). https:Nwww.sosnc.gov/online servicesisearchtby title/ Business Registration oil Stormwater Permit Renewal Anahi ttnn Form Pane 2 ni 3 M.11 9111A D. PE,RRMMIITTTEE'S CERTIFICATION K1'ZZG' , the person legally responsible for the permit, certify that I have a copy of the Permit and O&M Agreement on site (or I will obtain a copy and it will be kept on site), that I am responsible for the performance of the maintenance procedures, and the site has been and will be maintained according to the O&M Agreement and approved plans. I agree to notify DEMLR of any problems with the SCMs or built -upon area and to submit the proper forms to modify or transfer the permit prior to any changes to the project, SCMs, or ownership. All information provided on this permit renewal application is, to the best of my knowledge, correct eadcpmplete. Signature: Date: /y ez0 a Notary Public for the State of Countyof (_)wgrt'� , do hereby certify n "� personally appeared before me this the day of (� ' U'f, Q�t 20 , and acknowledge the due execution of the forgoing instrument Witness my hand and official seal, JENNIFER SUWON$ (Notary Seal) Nmry publrc Catlfornla erupe County op Commisslun I 22739A1 W Comm. Fibres Jan ]. ZDI1 Notary Signature: ,'•—(�d_ My commission expi es: I - 3 " a �✓� v� ECEUVE NQ 1 U "12020 StOrnlwater Permit Renewal Aonlication Form Pace 3 of 3 Mav 11. 2018 UEMLH U51: ONLY D to R ceived = Fee Paid Permit Number sWsF 1I °U I SWE 0 7 681 NC DEQ Division of Energy, Mineral and Land Resources STATE STORMWATER: PERMIT RENEWAL APPLICATION FORM In accordance with 15A NCAC 2H.1045(3), the current permit holder shall renew their high density permit 180 days prior to its expiration. Renewed permits are valid for a period of 8 years per Session Law 2011-398 (SB 781) Section 60.(c). This application form is for permit renewals only. A. PROJECT INFORMATION 1. State Stormwater Permit Number: SW8 090815 2. Projectname: MAINSIDE PEeOES t"1AZOR-' -R!lFsi�1JT1AL -bcV, 3. Project street address: XXX City: MCB Camp Leieune County: Onslow ZIP: 28542 4. What, if any, changes have been made to the project as permitted? If the project has changed from the original approved plans, please complete SWU-101 for a Major Modification or Minor Modification Application form available at: https:Hdeg.nc.gov/about/divisions/energy- m ineral-land-resources/energy-mineral-land-rules/stormwater-grog ram/post-construction. B. PERMITTEE INFORMATION If changes to the permittee or project name have been made, please complete either the Permit Update form or the Permit Transfer form available at: https://deg.nc.gov/about/divisions/energy-mineral-land- resources/energy-mineral-land-rules/stormwater-program/post-construction. State Stormwater Permits do not automatically transfer with the sale of the property. 1. Current Permit Holder's Company Name/Organization: MCB Camp Leieune 2. Signing Official's Name: Neal Paul 3. Signing Official's Title: Deputy Public Works Division 4. Mailing Address: MCB Camp L.ejeune 1005 Michael Rd. City: MCB Camp Leieune State: NC ZIP: 28547-2521 5. Street Address: City: State: ZIP 6. Phone: (910) 451-2213 Email: neal.paul@usmc.mil ECEIV'E" SEP 14 I'll BY:_----- Stormwater Permit Renewal Form Page 1 of 3 May 11, 2018 C. SUBMITTAL REQUIREMENTS Submit the application package to the appropriate DEMLR Regional Office (Coastal, SA Waters) or DEMLR Central Office (Urbanizing Areas Ph 2, USMP, Non -Coastal HOW/ORW). Only applications packages that include all required items listed below will be accepted and reviewed. Initial each item below to indicate that the required information is provided in the application package: MCT 1. A permit application processing fee of $505.00 payable to NCDEQ. MCT 2. One original signed hard copy and one electronic copy of this completed form. The signing official named on this application to represent the current permittee must meet one of the following: a. Corporation — a principle executive officer of at least the level of vice-president; b. Limited Liability Company (LLC) — a manager or company official as those terms are defined in G.S. 57D "North Carolina Limited Liability Company Act;" c. Public Entity — a principal executive officer, ranking official, or other duly authorized employee; d. Partnership or limited partnership — the general partner; e. Sole proprietor; or f. Letter of authorization signed by one of the signatories noted in a — e above authorizing the signature of another entity. MCT 3. One hard copy and one electronic copy of recorded documents required by the original permit that have not yet been received by DEMLR, including: deed restrictions, protective covenants, condominium/planned community declaration and easements. If the project has been built, include documentation that the maximum BUA per lot or maximum total BUA has not been exceeded. If the project has not been built, include a signed agreement that the final recorded deed restrictions and protective covenants will be submitted at a later date. MCT 4. O&M Agreements, Please select one: ® I have a copy of the current recorded O&M Agreement for all SCMs, and I will continue to keep this on file with the permit; or ❑ I do not have a copy of the current recorded O&M Agreement for all SCMs and am requesting a copy be sent to me. I agree to keep this on file with the permit. MCT 5. Designer Certifications, Please select one: ❑ A copy of the certification(s) confirming that the project was built in accordance with the approved plans have been previously provided to the Division; or ® A copy of the certification(s) confirming that the project was built in accordance with the approved plans are enclosed; or ❑ The project has not yet been built. MCT 6. [IF APPLICABLE] If the project has been built, one original hard copy and one electronic copy of a signed, sealed, and dated letter from a licensed professional stating that the SCMs have been inspected, and that they have been built and maintained in accordance with the permit. 7. [IF APPLICABLE] When the permittee is a corporation or a limited liability corporation (LLC): Provide one hard copy and one electronic copy of documentation from the NC Secretary of State, or other official documentation, which supports the titles and positions held by the persons listed in Section C.2 per 15A NCAC 2H. 1043(3)(b). https://www.sosnc.gov/online services/search/by title/ Business Registration ECEIVE SEP 14 2020 BY: Stormwater Permit Renewal Application Form Page 2 of 3 May 11, 2018 D. P MFICATION , 1 the person legally responsible for the permit, certify that I have a copy of the Permit and O&M Agreement on site (or I will obtain a copy and it will be kept on site), that I am responsible for the performance of the maintenance procedures, and the site has been and will be maintained according to the O&M Agreement and approved plans. I agree to notify DEMLR of any problems with the SCMs or built -upon area and to submi roper forms to modify or transfer the permit prior to any changes to the project, SC r ownership. 11 infor ation provided on this permit renewal application is, to the best of my knowledge, orr t nd mpl te. Signature: �' Date:116 0 NOT KAIWW it ftNAW_ra ihis the dayof &4i1 eJL2� OTAy (Notary Seal `O jOVBLIG W Signatur `` V"""'W COON��ar My comPiil�'�'1'bn expires <22L�)4 0�.U4 DLO a Notary Public for the State of do hereby certify personally appeared before me 20_V_.b_, and acknowledge the due SEP 14 2020 BY: Slormwater Permit Renewal Application Form Page 3 of 3 May 11, 2018 V. PROPOSED PERMITTEE CERTIFICATION: (This section must be completed by the Proposed Pennittee for all transfers of ownership) 1, �—• Tckr I ��I.iSS ,hereby notify the DWQ that I have acquired through sale, lease or legal transfer, the responsibility for operating and maintaining the permilled stormwater management system, and, if applicable, constructing the permitted system. I acknowledge and attest that I have received a copy of: (check all that apply to [his permit) GZ) the most recent permit C] the designer's certification for each BMP ❑ any recorded deed restrictions, covenants, or easements �] the DWQ approved plans and/or approved as -built plans ® the approved operation and maintenance agreement Bpast maintenanco records from the previous permi0ee (where required) DWQ stormwater inspection report showing compliance within 90 days prior to this transfer I have reviewed the permit, approved plans and other documents listed above, and I will comply with the terms and conditions of the permit and approved plans. I acknowledge and agree that I will operate and maintain the system pursuant to the requirements listed in the permit and in the operation and maintenance agreomont. I further attest that this application for a name/ownership change is accurate and complete to the best of my.knowledge. I understand that if all required parts of this application are not co9pleAed or it all required supporting information and attachments listed above are not includ d, ll ' app i ation package will be returned as incomple 99 Signahre� G Date: % r t, -J%-YUI V IIA.IA.i• IY l V IX.YYIt_Xr FYI a Notary Public for the State of County of Each AA 01 do hereby cerlify that personally appeared before me this the —day of `Y , IYU/ 1 , 20JA& and acknowledge the due execution of the forgoing instrument. Witness m hand and official seal, g g y (ol"arySIgNattre irl fr�rt2�l�n:.2 p ; COMMISSION ;:• EXPIRES : is ITH �Fp�`� Additional copies of the original pennil and the approved Operation and t'vi'ddtftr�l`ance agreement can be obtained from the appropriate Regional Office of the Division of Water Quality. This completed fern, including all supporting documents and processing fee (if required), should be sent to the appropriate Regional Office of the North Carolina Department of Environment and Natural Resources, Division of Water Quality, as shown on the attached map, Please note that it the Proposed Ponnitlee listed above is not the properly owner, the properly owner must coinpfete and sign page 4 of this document. Bolt the lessee /developer and the properly owner wit) appear on the permit as permittees. SEP 14 2020 SSW N/O Change Rev15Feb2011 Pag Mf 4 (�(� } 1vZ r Permit N'�w O flo be provloed by DING) AD o2�p WA7-! O9 NCDENR h STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM WET DETENTION BASIN SUPPLEMENT This form must be filled out, printed and submitted. The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information. Project name Heroes Manor Residential Development formerly Lincoln Park Residential) Contact person Tom Sauro-KHA Phone number 757-213-8600 Date 19-Apr-12 Drainage area number DA # 1 II. DESIGN INFORMATION Site Characteristics Drainage area 7,248,980 ft' Impervious area, post -development 2,425,008 ftz %impervious 33.45 % Desgn 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-hr mnoff Post -development 1-yr. 24-hr runoff Minimum volume required Volume provided Peak Flow Calculations Is the pre/post control of the lyr 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 stonn Pre -development 1-yr, 24-hr peak flow Post -development 1-yr, 24-hr peak flow Pre/Post 1-yr, 24-hr peak flow control Elevations Temporary pool elevation Permanent pool elevation SHWT elevation (approx. at the perm. pool elevation) Top of 10ft vegetated shelf elevation Bottom of 10ft vegetated shelf elevation Sediment cleanout, 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 of the additional volume Form sW401-Wet Detention Basin-Rev.8-9117109 318,120 ft3 1,237,891 ft3 ft3 ft3 ft3 ft3 ft3 Y (Y or N) 3.7 in OK OK, volume provided is equal to or in excess of volume required. 0.15 (unitless) 0.65 (unitiess) 0.16 iNhr OK 8.81 ft3/sec 1.38 ft Isec -7.43 ft3/sec q,,. SEq 1212� .,�,p''•,M� Ez AL L ?,Q W 14.00 fmsl 11.00 fmsl 11.25 fmsl 11.50 fmsl 10.50 fmsl Data not needed for calculation option #1, but OK if provided. 4.00 fmsl 2.00 bnsl Data not needed for calculation option #1, but OK if provided. 2.00 It Y (Y or N) 14.0 fmsl OK T 43 J _J APR 2 0 -L012 Parts I. a H. Design Summary, Page 1 of 2 . ilttii�.•!r• � y 1 Ott t ': llllv.: Permit (lo be pmvided by Di II. DESIGN. INFORMATION Surface Areas Area, temporary pool 433,094 fit' Area REQUIRED, permanent pool 128,30711 SA/DA ratio 1.77 (unitless) Area PROVIDED, permanent pool, A.. 387,291 fl OK Area, bottom of 10ft vegetated shelf, A� � 373,917 ft Area, sediment cleanout, top elevation (bottom of pond), A.. 287,091 fl Volumes Volume, temporary pool 1,237,891 rya OK Volume, permanent pool, Vp, . 2,329,455 ft3 Volume, forebay (sum of forebays if more than one forebay) 431,319 ft3 Forebay % of permanent pool volume 18.5% % OK SAIDA Table Data Design TSS removal 90 % Coastal SAIDA Table Used? Y (Y or N) MountairdPiedmont SAIDA Table Used? N (Y or N) SA/DA ratio 1.77 (unitle55) Average depth (used in SAIDA table): Calculation option 1 used? (See Figure 10-2b) Y (Y or N) Volume, permanent pool, VP, 2,329,455 It3 Area provided, permanent pod, Ar„r j 387,291 ft' Average depth calculated 6.01 It OK Average depth used in SAIDA, ci (Round to nearest O.Stt) 6.0 ft OK Calculation option 2 used? (See Figure 10-2b) N (Y or N) Area provided, permanent pool, A._p, 387,291 ft2 Area, bottom of 10ft vegetated shelf, A,, 373,917 R' Area, sediment cleanout, top elevation (bottom of pond), A.., 287,091 ft' 'Depth' (distance btw bottom of 1 Oft shelf and top of sediment) 6.50 It Average depth calculated It Average depth used in SAIDA, d„, (Round to nearest 0.511) ft Drawdown Calculations . Drawdown through orifice? Diameter of orifice (if circular) Area of orifice (if-non-arcular) Coefficient of discharge (Cc) Driving head (H.) Drawdown through weiR Weir type Coefficient of discharge (C„) Length of weir (L) Driving head (H) Pre -development 1-yr, 24-hr peak flow Post -development 1-yr, 24-hr peak flow Storage volume discharge rate (through discharge orifice or weir) Storage volume drawdmn time Additional Information Vegetated side slopes Vegetated shelf slope Vegetated shelf width Length of flowpath to width ratio Length to with ratio Trash rack for overflow 8 orfco? Freeboard provided Vegetated filter provided? Recorded drainage easement provided? Capures all runoff at ul6male build -out? Drain mechanism for maintenance or emergencies is: Form SW401-wet Detention Basin-Rev.&9117109 Y (Y or N) 6.00 in ins 0.60 (unittess) 0.91ft N (Y or N) (unitless) (unitless) It It 8.81 ft`/sec 1.38 ft3lsec 0.91 ft3/sec 4.07 days 4 :1 10 :1 10.0 ft 3 :1 2.5 :1 Y (Y or N) 50ft OK, draws down in 2-5 days. OK OK OK OK OK OK OK N (Y or N) OK N (Y or N) Insufficient. Recorded drainage easement required Y (Y or N) OK PUMP OUT Parts I. a II. Design Summary, Page 2 of 2 APR 2 0 ZU1Z Permit (to be provided by DWQ) III. REQUIRED ITEMS CHECKLIST Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Page/ Plan Initials Sheet No. t arras 1. Plans (1" - 50' or larger) of the entire site showing: - Design at ultimate build -out, - OH -site drainage (if applicable), - Delineated drainage basins (include Rational C coefficient per basin), - Basin dimensions, - Pretreatment system, - High Flow bypass system, - Maintenance access, - Proposed drainage easement and public right of way (ROW), - Overflow device, and - Boundaries of drainage easement. P� S 2. Partial plan (1" = 30' or larger) and details for the wet detention basin shoving: - Outlet structure with trash rack or similar, - Maintenance access, - Permanent pool dimensions, - Forebay and main pond with hardened emergency spillway, - Basin cross-section, - Vegetation specification for planting shelf, and - Filter strip. CPJ Floe 3. Section view of the wet detention basin (1" = 20' or larger) showing: - Side slopes, 3:1 or lower, - Pretreatment and treatment areas, and - Inlet and outlet structures. C� plgp_S 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. .Ca4 Cam., 5. A table of elevations, areas, incremental volumes & accumulated volumes for overall pond and for Forebay, to verify volume provided. P IOY� S 6. A construction sequence that shows how the wet detention basin vrill be protected from sediment until the entire drainage area is stabilized. 7. The supporting calculations. (� gytaCN,Cc� • 8. A copy of the signed and notarized operation and maintenance (0&M) agreement. NIA 9. A copy of the deed restrictions (if required). 1045 CgNo.i9ve 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. APR 2 0 Z01'Z Form SW401-Wet Detention Basin-Rev.8-9/17/09 Part III. Required Items Checklist, Page 1 of 1 *• Permit NS W l) (to be pmvidW by DWQ) ®Rn, Q�OF W A 7F,9OG NCDENR STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM WET DETENTION BASIN SUPPLEMENT This form must be filled out, printed and submitted. The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information. Project name Contact person Phone number Date Drainage area number The Village at Carolina Sands (formerly LINCOLN PARK) Residential Development at Camp Lejeune Ted Miller- KHA 757-548 7300 5-Apr-11 DA #1 I3DESIGKINEORMATION .._ Site Characteristics Drainage area 5,271,631 1 Impervious area, post -development 1,657,718 ftv %impervious 31.45 % , Design rainfall depth 1.5 in Storage Volume: Non -SA Waters Minimum volume required 219,461 rya OK Volume provided 805,221 ft3 OK, volume provided is equal to or in excess of volume required. Storage Volume: SA Waters 1.5• runoff volume rya Pre -development 1-yr, 24-hr runoff fl3 Post -development 1-yr, 24-hr runoff ft3 Minimum volume required 0 ft3 Volume provided ft3 �CA�'��•• Peak Flow Calculations ���'(\A Is the pre/post control of the iyr 24hr storm peak flow required? Y (Y or N) ...... • •� 1-yr, 24-hr rainfall depth 3.7 in `�� •. y •^ Rational C, pre -development 0.15 (unitless) o e SAL Rational C, post -development 0.65 (unitless) E Rainfall intensity: 1-yr, 24-hr storm 0.16 hill Y F OK 0 5380 ;Z Pre -development 1-yr, 24-hr peak flow 6.41 ft3/sec vv -%'l 5 •' o •••9�/ Post -development 1-yr, 24-hr peak flow 1.42 rya/sec �0 �� ••h /F� • ••R Pre/Post 1-yr, 24-hr peak flow control -0.99 rya/sec E ����` •,���rrrrrsss��,,, Elevations Temporary pool elevation 14.00 fmsl Permanent pool elevation 11.00 fill SHWT elevation (approx. at the pen. pool elevation) 11.25 fmsl Top of 1 Oft vegetated shelf elevation 11.50 fmsl Bottom of 10ry vegetated shelf elevation 10.50 fmsl Data not needed for calculation option #1, but OK if provided. Sediment cleanout, top elevation (bottom of pond) 7.50 fmsl Sediment cleanoul, bottom elevation 6.00 fmsl Data not needed for calculation option #1, but OK if provided. Sediment storage provided 1.50 it Is there additional volume stared above the state -required temp. pool? Y (Y or N) Elevation of the top of the additional volume 14.0 first OK APR 0 8 2011 Form SW401-Wet Deterxm Basin-Rev.7-e/13/tl9 I Parts I. & 11. Design Summary. Page 1 of 2 --r• I —. Permit N \ s' (to be Provided by DWQ) II:yDESIGN',INF,ORMATION vx*�F'v Surface Areas Area, temporary pool 281,650 ftz Area REQUIRED, permanent pool 178,181 fe SAIDA ratio 3.38 (unitless) Area PROVIDED, permanent pool, A°„„ °„I 245,659 ft' Area, bottom of IN vegetated shelf, A,_,,, 240,554 ft` Area, sediment cleanoul, lop elevation (bottom of pond), Aes, 205,465 ft` Volumes Volume, temporary pool 805,221 ft' Volume, permanent pool, V.-Poal 790,735 ft' Volume, forebay (sum of forebays if more than one forebay) 144,908 ill Forebay % of permanent pool volume 18.3% % SAIDA Table Data Design TSS removal Coastal SAIDA Table Used? Mountain/Piedmont SAIDA Table Used? SAIDA ratio Average depth (used in SAIDA table): Calculation option 1 used? (See Figure 10-2b) Volume, permanent pool, V°,.,,-„a Area provided, permanent pool, A°,,,, °„I Average depth calculated Average depth used in SAIDA, d„, (Round to nearest 0.5ft) Calculation option 2 used? (See Figure 10-2b) Area provided, permanent pool, Ate„ vA Area, bottom of 10ft vegetated shelf, Aool ,Moil Area, sediment cleanoul, lop elevation (bottom of pond), A,. 'Depth' (distance o1w bottom of 10ft shelf and lop of sediment) Average depth calculated Average depth used in SAIDA, d„, (Round to nearest 0.5ft) Drawdown Calculations Drawdown through orifice? Diameter of orifice (if circular) Area of orifice (if -non -circular) Coefficient of discharge (CD) Driving head (Ho) Drawdown through weir? Weir type Coefficient of discharge (C.) Length of weir (L) Driving head (H) Pre -development 1-yr, 24-hr peak flow Post -development 1-yr, 24-hr peak flow Storage volume discharge rate (through discharge orifice or weir) Storage volume drawdown time Additional Information Vegetated side slopes Vegetated shelf slope Vegetated shelf width Length of towpath to width ratio Length to width ratio Trash rack for overflow & orifice? Freeboard provided Vegetated filler provided? Recorded drainage easement provided? Capures all runoff at ultimate build -out? Drain mechanism for maintenance or emergencies Form SW401-Wet Detention Basin-Rev]-8/13/09 90 % Y (Y or N) N (Y or N) 3.38 (unitless) Y (Y or N) 790,735 fta 245,659 ft' 3.22 ft 3.0 ft N (Y or N) It, ft` file Y (Y or N) 6.00 in in 0.60 (unitless) 0.92 ft N (Y or N) (unitless) (unitless) ft ft 6.41 ft'sec 1.42 ft irsec 0.91 ftstsec 2.81 days 4 :1 10 :1 10.0 ft 3 :1 2.5 :1 OK OK OK OK4i1��11 hrrvaifa:ieat..CherYcakulatiaw Y OK OK OK, draws down in 2-5 days. OK, drawdown time is correct. OK OK OK OK OK Y (Y or N) OK 5.0ft OK N (Y or N) OK N (Y or N) Insufficient. Recorded drainage easement required. Y (Y or N) OK PUMP OUT Pans I. & II. Design Summary, Page 2 of 2 APR 0 8 2011 BY: Permit No &Lg 09N � (to be provided by D WO) IIL REQUIRED ITEMS CHECKLIST Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Page/ Plan Jnitials Sheet No. L ice' WvS 1. Plans (1" - 50' or larger) of the entire site showing: - Design at ultimate build -out, - Off -site drainage (if applicable), - Delineated drainage basins (include Rational C coefficient per basin), - Basin dimensions, - Pretreatment system, - High flow bypass system, - Maintenance access, - Proposed drainage easement and public right of way (ROW), - Overflow device, and - Boundaries of drainage easement. A— 2. Partial plan (1" = 30' or larger) and details for the wet detention basin showing: - Outlet structure with trash rack or similar, - Maintenance access, - Permanent pool dimensions, - Forebay and main pond with hardened emergency spillway, - Basin cross-section, - Vegetation specification for planting shelf, and - Filter strip. (L A_S 3. Section view of the wet detention basin (1" = 20' or larger) showing: - Side slopes, 3:1 or lower, - Pretreatment and treatment areas, and - Inlet and outlet structures. t q s 4. If the basin is used for sediment and erosion control during construction, clean out of the basin is specified �t�( on the plans prior to use as a wet detention basin. L r 1 ALG�tgno-S5. A table of elevations, areas, incremental volumes & accumulated volumes for overall pond and for forebay, Fit to verify volume provided. ASS 6. A construction sequence that shows how the wet detention basin will be protected from sediment until the entire drainage area is stabilized. 4tutAIIou (r t 7. The supporting calculations. %h TNoos ti 8. A copy of the signed and notarized operation and maintenance (0&M) agreement. 1,,r SuBriiYrp'� tt 9. A copy of the deed restrictions (if required). M W tt % 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. ,)Ulm rrne MAR 2 2 2011 BY: Form SW401-Wet Detention Basin-Rev.7-8/13/09 Part III. Required Items Checklist, Page 1 of 1 Permit No'""��L" (to be pmvlded by OWp) ®'P NCDENR Project name Contact person Phone number Date Drainage area number 1 o2ap W A 7FgOG C STORMWATER MANAGEMENT PERMIT APPLICATION FORM c 401 CERTIFICATION APPLICATION FORM WET DETENTION BASIN SUPPLEMENT This form must be filled out printed and submitted. The Required Items Checklist (Fart Ill) must be printed filled out and submitted along msh all of the required information. 757-2138600 10-May-12 DA #2 Heroes Mawr Residential II. DESIGN INFORMATION Site Characteristics Drainage area 578,796 ff Impervious area, post -development 196,877 ftz impervious 34.01 % 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-hr runoff Post -development 1-yr, 24-hr runoff Minimum volume required Volume provided Peak Flow Calculations Is the pre/post control of the lyr 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 stone Pre -development 1-yr, 24-hr peak Flow Post -development 1-yr, 24-hr peak flow Pre/Post 1-yr, 24-hr peak flow control Elevations Temporary pool elevation Permanent pool elevation SHWf elevation (approx. at the perm. pool elevation) Top of 1Ofl vegetated shelf elevation Bottom of 1 Oft vegetated shelf elevation Sediment cleanout, 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 of the additional volume Form SW401-Wet Detention Basin-Rev.8-9117109 25,767 ft3 70,371 ff3 ft3 ff3 ft3 It, Y (Y or N) 3.7 in OK OK, volume provided is equal to or in excess of volume required. US (unidess) 0.65 (unidess) 0.16 inlhr OK 3.04 elsec 0.85 elsec -2.19 elsec 20.50 fmsl 18,50 fmsl 19,00 fmsl 19.00 fmsl 18.00 first 13.50 fmsl 12.00 fmsl 1.50 fl Data not needed for calculation option 41, but OK if provided. Data not needed for calculation option #1, but OK if provided. Y (Y or N) 20.5 first OK 1 MAY 11� Q�2 r Pans I. S 11, Design Summary, Page 1 of 2 Mf-.. df. e.�rd .,,•rd.,• .�. ,,. ' ; � ; = �y r 1' -•;' '.. :� ,,�_,, ,,t. w Peril No. (to be pmWded by DM) II. DESIGN INFORMATION Surface Areas Area, temporary pool 38,891 It, Area REQUIRED, permanent pool 22,573 fit' SAIDA ratio 390(unidess) Area PROVIDED, permanent pool, Ai 29,176 fl' OK Area, bottom of 1 Oft vegetated shelf, AW, 00 24,274 fl2 Area, sediment cleanout, top elevation (bottom of pond), A., 10,548 tt Volumes Volume, temporary pool 70,371 fta OK Volume, permanent pool, Vp,m_pw 91,245 ffs Volume, forebay (sum of forebays if more than one forebay) 18,044 ft' Forebay %of permanent pool volume 19.8% % OK SAIDA Table Data Design TSS removal 90 % Coastal SAIDA Table Used? Y (Y or N) Mountain/Piedmont SAIDA Table Used? N (Y or N) SAIDA ratio 3.90 (unitless) Average depth (used in SAIDA table): Calculation option 1 used? (See Figure 10-2b) Y (Y or N) Volume, permanent pool, Vp _pw 91,245 fit' Area provided, permanent pool, Ap,,. 29,176 fl' Average depth calculated 3.18 It OK Average depth used in SAIDA, d„, (Round to nearest 0.5ft) 3.0 It OK Calculation option 2 used? (See Figure 10-2b) N (Y or N) Area provided, permanent pool, A,,,,,_pw 29,176 fit' Area, bottom of 10ft vegetated shelf, Av„ ", 24,274 fit' Area, sediment cleanout, top elevation (bottom of pond), A� ,,,4 10,548 rye "Depth" (distance b/w bottom of 1Oft shelf and top of sediment) 4.50 It Average depth calculated It Average depth used in SAIDA, till (Round to nearest 0.511) It Drawdown Calculations Drawdown through onfice? Diameter of entice (if circular) Area of orifice (if -non -circular) Coefficient of discharge (Ce) Driving head (Ho) Drawdown through weir? Weir type Coefficient of discharge (C.„) Length of weir (L) Driving head (H) Pre -development 1-yr, 24-hr peak flow Post -development 1-yr, 24-hr peak flow Storage volume discharge rate (through discharge orifice or weir) Storage volume drawdown dme Additional Information Vegetated side slopes Vegetated shelf slope Vegetated shelf Width Length of flowpath to width ratio Length to width ratio Trash rack for overflow 8 orifice? Freeboard provided Vegetated filter provided? Recorded drainage easement provided? Capures all runoff at ultimate build -out? Drain mechanism for maintenance or emergencies is: Form SW401-Wet Detention Basin -Rev 8-9117M Y (Y or N) 2.50 in in 0.60 (unitless) 0.63 It N (Y or N) (unidess) (unitless) It It 3.04 fil 0.85 ft2lsec 0.13 ft Isec 2.29 days 3 :1 10 :1 10.0 ft 9 :1 5.3 :1 Y (Y or N) 2.5 It N (Y or N) N (Y or N) Y (Y or N) PUMP OUT OK, draws down in 2-5 days. OK OK OK OK OK OK OK OK Insufficient. Recorded drainage easement required. OK g1z —• a� MAY 1 1 Z01Z ICY:_ Parts I. a II. Design Summary, Page 2 of 2 Permit III. REQUIRED ITEMS CHECKLIST (to be provided by DWQ) Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below.lf a requirement has not been met, attachjustifrcation. Page/ Plan Initials Sheet No. Fi P 1. Plans (1" - 50' or larger) of the entire site showing: - Design at ultimate build -out, - Off -site drainage (if applicable), - Delineated drainage basins (include Rational C coefficient per basin), - Basin dimensions, - Pretreatment system, - High flow bypass system, - Maintenance access, - Proposed drainage easement and public right of way (ROW), - Overflow device, and - Boundaries of drainage easement. k OLx)S 2. Partial plan (1" = 30' or larger) and details for the wet detention basin showing: - Outlet structure with trash rack or similar, - Maintenance access, - Permanent pool dimensions, - Forebay and main pond with hardened emergency spillway, - Basin cross-section, - Vegetation specification for planting shelf, and - Filter strip. 3. Section view of the wet detention basin (1" = 20' or larger) showing: - Side slopes, 3:1 or lower, - Pretreatment and treatment areas, and - Inlet and outlet structures. E(3 fla^ 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. E11 OACS 5. A table of elevations, areas, incremental volumes & accumulated volumes for overall pond and for forebay, to verify volume provided. ✓g P� OV \ 6. A construction sequence that shows how the wet detention basin will be protected from sediment until the entire drainage area is stabilized. E CWCS 7. The supporting calculations. g attached 8. A copy of the signed and notarized operation and maintenance (08M) agreement. N/A 9. A copy of the deed restrictions (if required). Fj f1aY',r0 '1V2- 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. MAY 1 1 L012 Form SW401-Wet Detention Basin-Rev.8-9/17/09 Part III. Required Items Checklist, Page 1 of 1 __--- Sw ga 90,FiS _� ®�j Of WAiEq O a� NCDENR ° STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM LEVEL SPREADER - VEGETATED FILTER STRIP (LS-VFS) SUPPLEMENT This form must be completely filled out, printed, initialed, and submitted. I.',PROJECY_.INF,ORMATION °` T .'s',";#rc r a,,i..,;;^'BPA , ?:+,'.;•'_�y-��k.`;. ,,a ":"":'s`';r:; Project name Heroes Manor Residential Development Contact name Tom Sauro-KHA Phone number 757-213-8600 Dale April 19, 2012 Drainage area number BMP p2 I1.'DESIGN INFORMAT10N,,, The purpose of the LS-VFS Buffer Rule: Diffuse Flow Stormwater enters LS-VFS from A BMP Type of VFS Engineered filter strip (graded 8 sodded, slope <8%) Explanation of any 'Other" responses above If Stormwater Enters the LS-VFS from the Drainage Area Drainage area ff Do not complete this section of the form. Impervious surface area ftz Do not complete this section of the form. Percent impervious % Do not complete this section of the form. Rational C coefficient Do not complete this section of the form. Peak flow from the 1 inlhr storm cfs Do not complete this section of the form. Time of concentration min Do not complete this section of the form. Rainfall intensity, 10-yr storm inlhr Do not complete this section of the form. Peak flow from the 10-yr storm CIS Do not complete this section of the form. Design storm Maximum amount of flow directed to the LS-VFS CIS Do not complete this section of the form. Is a flow bypass system going to be used? (Y or N) Do not complete this section of the form. Explanation of any "Other" responses above If Stormwater Enters the LS-VFS from a BMP Type of BMP Wet detention pond Peak discharge from the BMP during the design storm 0,096 cfs Peak discharge from the BMP during the 10-year storm 9.25 CIS Maximum capacity of a 100-foot long LS-VFS 10 CIS Peak flow directed to the LS-VFS 9.25 cfs Is a flow bypass system going to be used? Y (Y Explanation of any "Other responses above LS-VFS Design Forebay surface area Depth of forebay at stormwaler entry point Depth of forebay at stormwaler exit point Feet of level lip needed per cfs Computed minimum length of the level lip needed Length of level lip provided Form SW401 - LS-VFS - 27Jul2011 - Rev.9 sq If In in 10 fticfs 93 it 100 It APR 2 0 W2 L page 1 of 3 L- — qrx �c a'e3rP r� P •l ��: ~�. ,. P ,. � .'i� � • ,s` :' . i v` i'i .}` i. 110r::0)131!P:Si... Width of VFS Elevation at downslope base of level lip Elevation at the end of the VFS that is farthest from the LS Slope (from level lip to the end of the VFS) Are any draws present in the VFS? Is there a collector swale at the end of the VFS? Bypass System Design (if applicable) Is a bypass system provided? Is there an engineered flow splitting device? Dimensions of the channel (see diagram below): M B W y (flow depth for 10-year storm) freeboard (during the 10-year storm) Peak velocity in the channel during the 10-yr storm Channel lining material Does the bypass discharge through a wetland? Does the channel enter the stream at an angle? Explanation of any 'Other" responses above 111. REQUIRED ITEMS CHECKLIST 50 fl 18.50 fmsl 18.00 fmsl 1.00 % N (Y or N) OK N (Y or N) Y (Y or N) Y (Y or N) Please provide plan details of flow splifter 8 supporting call 0.00 R 0.00 R 0.00 it 0.00 it 0.00 it fllsec Wert mie. N (Y or N) Provide at least one foot of freeboard. There is a bypass system that will diffuse into a rip rap apron before entering the buffer. Therefore, there is no bypass swale. W i B i EDIT 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. Requried Item: 1. Plans (1' -50' or larger) of the entire site showing: - Design at ultimate build-oul, - Off -site drainage (if applicable), - Delineated drainage basins (include Rational C coefficient per basin), - Forebay (if applicable), - High flow bypass system, - Maintenance access, - Proposed drainage easement and public right of way (ROW), and - Boundaries of drainage easement. Form SW401 - LS-VFS - 27Jul2011 - Rev.9 Initials Page or plan sheet number and any notes: -M. APR 2 0 ZU1Z page 2 of 3 2. Plan details (1" = 30' or larger) for the level spreader showing: - Forebay (if applicable), - High flow bypass system, - One toot topo lines between the level lip and tap of stream bank, - Proposed drainage easement, and - Design at ultimate buildout. 3. Section view of the level spreader (1' = 20' a larger) showing: - Underdrain system (if applicable), -Level lip, - Upslope channel, and - Downslope filter fabric. 4. Plan details of the flow splitting device and supporting calculations (if applicable). -( {-') pW S (J\ with pigs atd+��e�ex�} 5. A construction sequence that shows how the level spreader will be protected from sediment until the entire drainage area is stabilized. 6. If a nomengineefed VFS is being used, then provide a photograph of the VFS showing that no draws are present. 7. The supporting calculations. 155 Cc�.4Cs 8. A copy of the signed and notarized operation and maintenance (08M) agreement. G-6 ON m0-"hokd- 1n V CrtS . Form SW401--S-VFS-27Jo12011-Rave APR 2 0 L01Z page 3 of 3 State Stormwater Management Systems Permit No. SW8 090815 Lincoln Park Residential Development Stormwater Permit No, SW8 090815 Onslow County Designer's Certification I, . . as a duly registered in the State of North Carolin having been authorized too serve (periodical) weekly/ full time) the construction of the project, Lic�.o_ln __ _P4r K tom, deny ; c,1 Dew lopmen� (Project) Fled— 4A%A.�b 41 J for v�-�u �e LL t (Project Owner) hereby state that, to the best of my abilities, due carS 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 specifications: Y fRoSEt-? S,TE 15 CuY>ZCn r—LrY UN,{11)EIP- CposTR(icT/OJ - CL�TIFIL>pT1UJ TZ"S IS COMpLE�i� =NLt v�)�G FoRESAY I�2 ADD Signature ber 1 Z/ Z.3 Date SEA`�Wj11uCrq,4 % O0 .0 �� �,Q�'pfESSla..���y SEAL %tv 12123 , r L L RO..,0 APR 1 9 2012 .l ; it aI/. `,,S�t ��`a t 'r o ��. ♦i; , 4 � •r • .lY � �i � �. /� •I. /1 � rI l . �' li i .l i ��r'UhI11 ttP ti+•. State Stormwater Management Systems Permit No. SW8 090815 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 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 structure. 8. All slopes are grassed with permanent vegetation. A T ro}z. rsA Y ' Z AwL �s 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. J 12. Required drawdown devices are correctly sized and located 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. N A 16. All components of the stormwater BMP are located in either recorded (Ii)c rrAP "S6� common areas, or recorded easements. cc: NCDENR-DWQ Regional Office