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HomeMy WebLinkAboutSW8110611_CURRENT PERMIT_20210526STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW8 I U to l l DOC TYPE] CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE 2\ oS7-u YYYYMMDD ROY COOPER Governor DIONNE DELLI-GATTI secretary BRIAN WRENN D&raor May 26, 2021 Marine Corps Base Camp Lejeune Attn: Neal Paul, Deputy Public Works Officer 1005 Michael Road Camp Lejeune, NC 28547 NORTH CAROLINA Fatv4onmeata/ Quality Subject: Permit Renewal State Stormwater Management Permit No. SW8 110611 Mobile MOUT Training Area Onslow County Dear Mr. Paul: The Wilmington Regional Office received a complete 8 year Stotmwater Management Permit Renewal Application for the subject project on May 17, 2021. The Division is hereby notifying you that permit SW8 110611 has been renewed on May 26, 2021, and shall be effective until September 16, 2029. 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 September 16, 2011 and most recently modified on October 13, 2017, will remain in full force and effect in accordance with the regulations set forth in Title 15A NCAC 2H.1000. This permit is subject to the conditions and limitations as specified therein. Please pay special attention to the conditions listed in this permit regarding the Operation and Maintenance of the BMP(s), recordation of deed restrictions, procedures for changes of ownership, transferring the permit, and renewing the permit. Failure to establish an adequate system for operation and maintenance of the stormwater management system, to record deed restrictions, to transfer the permit, or to renew the permit, will result in future compliance problems. If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing by filing a written petition with the Office of Administrative Hearings (OAH). The written petition must conform to Chapter 150B of the North Carolina General Statutes and must be filed with the OAH within thirty (30) days of receipt of this permit. You should contact the 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 Ashley Smith in the Wilmington Regional Office, at (910) 796-7215 or ashleym.smith@ncdenr.gov. Sincerely, /�� Q� in/G VLK1 /7t^�at Brian Wrenn, Director Division of Energy, Mineral and Land Resources Enclosures: Attachment A — Designer's Certification Form Attachment C — Permitting History Renewal Application Documents DES/ams: %Stormwater\Permits & Projects\2011\I10611 HD\2021 05 permit 110611 cc: NCDEQ-DEMLR Wilmington Regional Office ®NK �M North Carolina Department of Environmental Quality I Division of Energy. Mineral and Land Resources Wilmington Regional Office 1127 Cardinal Drive Extension I Wilmington, North Carolina 28405 txwm.0 uvn ��� 910.796.7215 State Stormwater Management Systems Permit No. SW8 110611 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF ENERGY, MINERAL AND LAND RESOURCES STATE STORMWATER MANAGEMENT PERMIT OVERALL LOW DENSITY WITH AREAS OF HIGHER DENSITY 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 Commanding Officer US MCB Camp Lejeune Mobile MOUT Training Area Range Road, Camp Lejeune, Onslow County FOR THE construction, operation and maintenance of an overall 12% low density project with three (3) infiltration basins and one (1) wet detention pond to treat the areas of higher density, within '/z mile of and draining to SA waters, in compliance with the provisions of 15A NCAC 2H .1000 and Session Law 2008-211 (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 (the "Division" or "DEMLR") and considered an enforceable part of this permit. The facilities shall be constructed, operated and maintained in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data attached to and on file with the Division. This permit shall be effective from the date of issuance until September 16, 2029, and shall be subject to the following specified conditions and limitations: I. DESIGN STANDARDS 1. This permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data. 2. This stormwater system has been approved for the management of stormwater runoff as described in Sections 1.9, 1.10 and 1.11 of this permit. The stormwater controls labeled BMP 1, BMP 2, BMP 3 and BMP 4 are designed to handle the runoff from 193,072 ft2, 67,082 ftZ, 33,977 ft2 and 26,572 ft2, respectively, of impervious area. 3. The overall project shall be maintained at or below a maximum density level of 12%. The project is a "mobile" training area, meaning that the built -upon area will be relocated within the project area as training demands. The maximum allowable amount of built -upon area for the entire 1,038 acre project area is 5,425,834 square feet. With this modified permit, a total of 1,347,932 sf of impervious area is permitted. Of this amount, 1,197,034 sf is existing previously permitted BUA prior to consolidation; 34,823 sf was added with the February 2012 modification; and, 116,075 sf is proposed new BUA for P1479. A total of 4,077,902 sf of impervious area is available for future development. 4. The P1479 project utilizes sheet flow and vegetated conveyances to convey runoff to a level spreader (Subbasin DA's 3, 4, 9, 10 & 14) which has been designed to handle the peak flow from the 1 inch per hour storm and to achieve diffuse flow. Page 1 of 8 State Stormwater Management Systems Permit No. SW8 110611 91 t7 A 50' wide vegetative buffer must be provided 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. For each permitted BMP, the runoff in excess of the design storm must flow overland through a 50' vegetated filter designed to pass the peak flow from the 10 year storm in a non -erosive manner. The overall tract and each drainage area will be limited to the amount of built -upon area indicated in Sections 1.2, 1.3, 1.9, 1. 10, and 1.11 of this permit, and per approved plans. 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. The following design criteria have been provided in the wet detention pond BMP #1, and must be maintained at design condition: a. Drainage Area, acres: 14.06 Onsite, ft2: 612,393 Offsite, ft2: 0 b. Total Impervious Surfaces, ft2: 193,072 Onsite, ft2: 193,072 Offsite, ft2: 0 C. Design Storm, inches: 3.65 (1 year 24 hour) d. Average Pond Design Depth, feet: 4.0 e. TSS removal efficiency: 90% f. Permanent Pool Elevation, FMSL: 21.50 g. Permanent Pool Surface Area, ft2: 20,048 h. Permitted Storage Volume, ft3: 47,452 i. Temporary Storage Elevation, FMSL: 23.45 j. Pre-dev. 1 yr-24 hr. discharge rate, cfs: 0.39 k. Controlling Orifice: 1.27" O pipe I. Orifice flowrate, cfs: 0.17 M. Permitted Forebay Volume, ft3: 15,088 n. Fountain Horsepower: 1/4 HP o. Receiving Stream/River Basin: Bear Creek / WOK01 p. Stream Index Number: 19-41-11 q. Classification of Water Body: "SA HQW" 10. A secondary BMP in series with wet pond BMP #1 is provided to treat the design storm discharged from the pond. The secondary BMP is a level spreader and 50-foot vegetated filter strip designed to effectively infiltrate the design storm, as described in Section 1.9 of this permit, and must be maintained at design condition: a. Peak Discharge Design Storm, cfs: 0.167 Peak flow 10-yr Storm, cfs: 2.33 b. Length of Level Spreader, ft: 50 C. Width of Vegetated Filter Strip, ft: 55 d. Slope of Vegetated Filter Strip: 0.73% Page 2 of 8 State Stormwater Management Systems Permit No. SW8 110611 11. The following design criteria is permitted for the three (3) infiltration basins and must be provided in the system and maintained at design condition: BMP #2 BMP #3 BMP #4 a. Drainage Area: acres -Onsite, ft': -Offsite, ft2: 4.84 210,960 0 3.53 153,767 0 2.11 91,912 0 b. Total Impervious Surfaces, ftZ: 67,082 33,977 26,572 c. Design Storm, in. 3.7 3.7 1 3.7 d. Basin Depth, ft: 1.8 2.8 1.8 e. Bottom Elev., FMSL: 24 28 37 f. Bottom Surface Area, ftZ: 9,300 4,420 8,940 g. Bypass Weir Elevation, FMSL: 25.77 29.78 37.79 h. Permitted Storage Volume, ft': 19,096 9,486 7,456 i. Type of Soil: BaB,MaC BaB,MaC BaB I. Expected Infiltration Rate, in/hr 3.7 6.7 4.1 k. Seasonal High Water Table, FMSL: 21.5 26 35 I. Draw Down Time, hrs: 48 48 48 m. Receiving Stream / River Basin Bear Creek / WOK 01 n. Stream Index Number 19-41-11 o. Water Body Classification: "SA HQW' II. SCHEDULE OF COMPLIANCE 1. The stormwater management system shall be entirely constructed, vegetated and operational for its permitted use prior to the construction of any built -upon surface. 2. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 3. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, the permittee shall cause a certification from an appropriate designer for the system installed to be submitted, certifying that the permitted facility has been installed in accordance with the permit conditions, 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. Decorative spray fountains are allowed in the pond, subject to the following criteria: a. The minimum permanent pool volume is 30,000 cubic feet. b. The fountain must draw its water from less than 2' below the permanent pool surface. C. Separated units, where the nozzle, pump and intake are connected by tubing, may be used only if they draw water from the surface in the deepest part of the pond. d. The fountain may not be placed into the forebay. e. The falling water from the fountain must be centered in the main pond, away from the shoreline. f. The maximum horsepower for a fountain in this pond is 1/4 horsepower. 5. The permittee shall at all times provide and perform the operation and maintenance necessary to assure the permitted stormwater system functions at the design condition as listed in the approved Operation and Maintenance Agreement. The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals. 6. Records of maintenance activities must be kept and made available upon request to authorized personnel of DEQ. The records will indicate the date, activity, name of person performing the work and what actions were taken. Page 3 of 8 State Stormwater Management Systems Permit No. SW8 110611 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. A copy of the approved plans and specifications shall be maintained on file by the Permittee at all times. 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. 10. Access to the stormwater facilities for inspection and maintenance shall be maintained via appropriate recorded easements at all times. 11, 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. 12. Prior to transfer of the permit, a file review and site inspection will be conducted by Division personnel to ensure the permit conditions have been met and that the project and the on -site stormwater system complies with the permit conditions. Any items not in compliance must be repaired, replaced restored, or resolved prior to the transfer. Records of maintenance activities performed to date may be requested. III. GENERAL CONDITIONS Any individual or entity found to be in noncompliance with the provisions of a stormwater management permit or the requirements of the stormwater rules is subject to enforcement procedures as set forth in NCGS 143 Article 21. The issuance of this permit does not preclude the permittee from complying with and obtaining any other permits or approvals that are required for this development to take place, as required by any statutes, rules, regulations, or ordinances, which may be imposed by any other Local, State or Federal government agency having jurisdiction. Any activities undertaken at this site that cause a water quality violation or undertaken prior to receipt of the necessary permits or approvals to do so are considered violations of NCGS 143-215.1, and subject to enforcement procedures pursuant to NCGS 143-215.6. Page 4 of 8 State Stormwater Management Systems Permit No. SW8 110611 3. If the facilities fail to perform satisfactorily, the permittee shall take immediate corrective actions. This includes actions required by this Division and the stormwater rules such as the construction of additional or replacement on -site stormwater systems. These additional or replacement measures shall receive a permit from the Division prior to construction. 4. Permit Transfer: This permit is not transferable to any person or entity except after notice to and approval by the Director. The permittee shall submit a completed and signed "Permit Transfer Application Form" (available on the Division website) accompanied by the required fee and supporting documentation as listed on the form, to the Division at least 60 days prior to any one or more of the following events: a. The sale or conveyance of the project area in whole or in part, except in the case of an individual lot sale that is made subject to the recorded deed restrictions and protective covenants; b. Dissolution of the partnership, corporate, or LLC entity, subject to NCGS 55-14-05 or NCGS 57D-6-07 and 08; C. Bankruptcy, d. Foreclosure, subject to the requirements of Session Law 2013-121, 5. Current Permittee Name or Address Changes: The permittee shall submit a completed "Permit Information Update Application Form" (available on the Division website) to the Division within 30 days to making any one or more of the following changes: a. A name change of the current permittee; b. A name change of the project; C. A mailing address change of the permittee; 6. The permittee is responsible for compliance with all terms and conditions of this permit until the Division approves the transfer request. Neither the sale of the project, in whole or in part, nor the conveyance of common area to a third party constitutes an approved transfer of the permit. 7. The permittee grants Division Staff permission to enter the property during normal business hours to inspect all components of the permitted project. 8. The permit issued shall continue in force and effect until the permittee files a request with the Division for a permit modification, transfer, renewal, or rescission; however, these actions do not stay any permit conditions. 9. Approved plans, application documents, supplements, calculations, operation and maintenance agreement, and specifications for this project are incorporated by reference and are enforceable parts of the permit. A copy of this permit, application, supplements, operation and maintenance agreement, and approved plans and specifications shall be maintained on file by the permittee. 10. Unless specified elsewhere, permanent seeding requirements for the on -site stormwater system must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual. 11. The issuance of this permit does not prohibit the Director from reopening and modifying the permit, revoking and reissuing the permit, or terminating the permit for cause as allowed by the laws, rules, and regulations contained in Title 15A NCAC 2H.1000 and NCGS 143-215.1 et.al. 12. A permit renewal request must be submitted at least 180 days prior to the expiration date of this permit. The renewal request must include the appropriate application, documentation and the processing fee as outlined in Title 15A NCAC 02H.1045(3). Page 5 of 8 State Stormwater Management Systems Permit No. SW8 110611 Permit renewed, updated and reissued this the 26 day of May 2021. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION C& M riannWrenn, Erector Division of Energy, Mineral and Land Resources By Authority of the Environmental Management Commission Page 6 of 8 State Stormwater Management Systems Permit No. SW8 110611 MOUT Training Area Stormwater Permit No. SW8 110611 Onslow County Attachment A Designer's Certification I, , as a duly registered in the State of North Carolina, having been authorized to observe (periodically/ weekly/ full time) the construction of the project, (Project) for (Project Owner) hereby state that, to the best of my abilities, due care and diligence was used in the observation of the project construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications. The checklist of items on page 2 of this form is included in the Certification. Noted deviations from approved plans and specifications: Signature Registration Number Date SEAL Page 7 of 8 State Stormwater Management Systems Permit No. SW8 110611 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 above permanent pool are grassed with permanent vegetation. 9. Vegetated slopes above permanent pool are no steeper than 3:1. 10. The inlets are located per the approved plans and do not cause short-circuiting of the system. 11. The permitted amounts of surface area and/or volume have been provided. 12. Required drawdown devices are correctly sized 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, a forebay, a vegetated filter, level spreader and a secondary BMP. 15. The required system dimensions are provided per the approved plans. _16. All components of the stormwater BMP are located in either recorded common areas. or recorded easements. cc: NCDEQ-DEMLR Regional Office Page 8 of 8 Attachment C - Permitting History Mobile MOUT Training Area Permit No. SW8 110611 Approval Permit Action BIMS Description of the Changes Date Version 9/ 16/201 1 Original 1.0 Approval Consolidates SW8051145, 2/22/2012 Modification 1.1 SW8060301, SW8090330, & SW8 11061 I; approved new BUA for training areas 10/13/2017 Modification 12 New BUA; New level spreader 5/26/2021 Renewal 2.0 S Operation & Maintenance Aqreement I Project Name Project Location P1479 Outdoor IIT Camp Lejeune, NC Maintenance records shall be Kept on the tollowmg BMP(s). This maintenance record shall be kept in a log in a known set locatio Any deficient BMP elements noted in the inspection will be corrected, repaired, or replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and the pollutant removal efficiency of the BMP(s). The BMP(s) on this project include (check all that al Bioretention Cell Dry Detention Basin Grassed Swale Green Roof Infiltration Basin Infiltration Trench Level SpreaderNFS Permeable Pavement Proprietary System Rainwater Harvesting Sand Filter Stormwater Wetland Wet Detention Basin Disconnected Impervious Area User Defined BMP I Alb I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed for each BMP above, and attached O&M tables. I agree to notify NCDENR of any problems with the system or prior to any changes to the system or responsible party. " Responsible Party: Title & Organization: Street address: City, state, zip: Phone number(s): Email: Cow pers Thomas Bradshaw US MCB Camp Lejuene Bldg 1005 Michael Rd Camp Lejeune NC 28547 910-451-3238 thomas.bradshaw@usmc.mil acknowledge the due execution of the Operations and Maint(,nan(ce Agreement . Witness my hand and official sea�t�4`i� .V Notary Public Onslow County Commission Exp 05/26/2019 ,D1ate: In lqll-7 mA JECOVE OCT 10 2017 By:SW_-- My commission expires Z)I.0 )' `-� 10/2/2017 Page 1 off' I Level Spreader -Vegetated Filter Strip / Restored Riparian Buffer Maintenance Requirements I 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 to remediate theproblem: The entire BMP Trash/debris is present. Remove the trash/debris. The perimeter of the BMP Areas of bare soil and/or Regrade the soil if necessary to remove the gully, and then plant a erosive gullies have formed. ground cover and water until it is established. Provide lime and a one- time fertilizer application. Vegetation is too short or too Maintain vegetation at a height of approximately six inches. long. The flow splitter device (if The flow splitter device is Unclog the conveyance and dispose of any sediment off -site. applicable) clogged. The flow splitter device is Make any necessary repairs or replace if damage is too large for repair. damaged. The inlet device The pipe is clogged. Unclog the pipe. Dispose of the sediment off -site. The pipe is cracked or Replace the pipe. otherwise damaged. Erosion is occurring in the Regrade the swale if necessary to smooth it over and provide erosion Swale. control devices such as reinforced turf matting or riprap to avoid future problems with erosion. Stone verge is clogged or Remove sediment and replace with clean stone. covered in sediment (if applicable). ECEIVEM OCT 10 2017 STORM-EZ 10/2/2017 Version 1.4 O&M Manual PageK of e 23 ' LS-VFS / Restored Riparian Buffer Maintenance Requirements (Continued) I The swale and the level lip The swale is clogged with Remove the sediment and dispose of it off -site. sediment. 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 that is higher than the level lip, and end of the level spreader that then plant a ground cover and water until it is established. Provide lime shows stormwater has and a one-time fertilizer application, bypassed it. Trees or shrubs have begun Remove them. to grow on the swale or just downslope of the level lip. The bypass channel Areas of bare soil and/or Regrade the soil if necessary to remove the gully, and then reestablish erosive gullies have formed. proper erosion control. Turf reinforcement is Study the site to see if a larger bypass channel is needed (enlarge if damaged or ripap is rolling necessary). After this, reestablish the erosion control material. downhill. The filter strip Grass is too short or too long Maintain grass at a height of approximately three to six inches. (if applicable). Areas of bare soil and/or Regrade the soil if necessary to remove the gully, and then plant a erosive gullies have formed. ground cover and water until it is established. Provide lime and a one- time fertilizer application. Sediment is building up on the Remove the sediment and restabilize the soil with vegetation if filter strip. 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 problem: soils, hydrology, disease, etc. dying. Remedy the problem and replace plants. Provide a one-time fertilizer application. Nuisance vegetation is Remove vegetation by hand if possible. If pesticide is used, do not choking out desirable species, allow it to get into the receiving water. The receiving water Erosion or other signs of Contact the NCDENR local Regional Office, or the 401 Oversight Unit damage have occurred at the at 919-733-1786. outlet. 9 9GEIVG OCT 10 2017 BY: ------ -- STORM-EZ Version 1.4 O&M Manual 10/212017 Page jYof$' 33 Wet Detention Basin Operation Permit Number: `j Gv Y //0 co ( (to be7i4ded by DWQ) Drainage Area Number: -y 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, 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 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: 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 RECI�ii`OT� AUG 2 5 2011 Page 1 of�� BY: Permit Number: SW j l /0 & ( / (to be provided by DWQ) Iakvj H swale or I The pipe is clogged. The pipe is cracked or Erosion is occurring in swale. Sediment has accumulated to a depth greater than the original design depth for sediment storage. Erosion has occurred. are present. The vegetated shelf Best professional practices show that pruning is needed to maintain optimal plant health. Plants are dead, diseased or dying. The main treatment area Weeds are present. Sediment has accumulated to a depth greater than the original design sediment storage depth. Algal growth covers over 50% of the area. Cattails, phragmites or other invasive plants cover 50% of the basin surface. Form SW401-Wet Detention Basin O&M-Rev.4 rge Area Number How I will remediate the probl Unclog the pipe. Dispose of the sediment off -site. Replace the pipe Regrade the swale if necessary to smooth it over and provide erosion control devices such as reinforced turf matting or riprap to avoid future problems with erosion. Search for the source of the sediment and remedy the problem if possible. Remove the sediment and dispose of it in a location where it will not cause impacts to streams or the BMP. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems. Remove the weeds, preferably by hand. If pesticide is used, wipe it on the plants rather than spraying. Prune according to best professional practices Determine the source of the 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. Remove the weeds, preferably by hand. If pesticide is used, wipe it on the plants rather than spraying. Search for the source of the sediment and remedy the problem if possible. Remove the sediment and dispose of it in a location where it will not cause impacts to streams or the BMP. Consult a professional to remove and control the algal growth. Remove the plants by wiping them with pesticide (do not spray). RECEIVED AUG 2 5 2011 BY: Page/ of/ Permit Number: 5iA) t / (to 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 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 5.5 feet in the main pond, the sediment shall be removed. When the permanent pool depth reads 5.5 feet in the forebay, the sediment shall be removed. Sediment Removal Bottom 16.0 --------------- FOREBAY BASIN DIAGRAM Ulf in the blanks) ''-ft Min. Sediment Storage Form SW401-Wet Detention Basin O&M-Rev.4 Permanent Pool Elevation 21.5 Pool Sediment Removal Elevation 16.0 volume ----------------------- ------ Bottom Elevation MAIN POND AUG 2 5 'U" 3 4 I Page fkof/ 1-ft Storage Permit Number: Siv BI/069 / (to be provided by DWQ) I acknowledge and agree by my signature below that 1 am responsible for the performance of the maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project name:Expansion of MOUT CTF Training Area BMP drainage area number:I Print name:Carl Baker, P.E. Title:DeputY Public Works Director Address:1005 Michael Road, Camp Lejeune, NC 28547 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, Su/v a Notary Public for the State of lfa4t) /innc J, County of do hereby certify that ( tom/Ci%t� personally appeared before me this/z day of Iz4c (4 5± _, / , and acknowledge the due execution of the forgoing wet etention basin maintenance requirements. Witness my hand and official seal, �YLVIA NORRI:3- 140TARY PUSLI ONSLOW CO-, ", MY COLIMISSION UP; SEAL My commission expires 3 Form SW401-Wet Detention Basin O&M-Rev.4 AUG 2 5 2011 Paget�Of6 ljp>y: rM Permit Number._set) p d )0'> (to he provided by DW Drainage Area Number: Infiltration 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. Important maintenance procedures: — The drainage area will be carefully managed to reduce the sediment load to the infiltration basin. — Immediately after the infiltration basin is established, the vegetation will be watered twice weekly if needed until the plants become established (commonly six weeks). — No portion of the infiltration basin will be fertilized after the initial fertilization that is required to establish the vegetation. — The vegetation in and around the basin will be maintained at a height of approximately six inches. After the infiltration basin is established, it will be inspected once a quarter and within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance will be kept in a known set location and will be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. BMP element: Potentialproblem: How I will remediate theproblem: The entire BMP - Trash/debris is present. Remove the trash/debris. The perimeter of the Areas of bare soil and/or Regrade the soil if necessary to infiltration 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. The inlet device: pipe or The pipe is clogged (if Unclog the pipe. Dispose of the swale applicable). sediment off -site. The pipe is cracked or Replace the pipe. otherwise damaged (if applicable). Erosion is occurring in the Regrade the swale if necessary to swale (if applicable). smooth it over and provide erosion control devices such as reinforced turf matting or riprap to avoid future problems with erosion. RECD MAR 3 0 2009 Fonn SW401-Infiltration Basin O&M-Rev.3 Page 1 of 3 MFlR 3 0 2 009 �3Y: BMP element: Potentialproblem: How I will remediate theproblem: The forebay Sediment has accumulated Search for the source of the and reduced the depth to 75% sediment and remedy the problem if of the original design depth. possible. Remove the sediment and dispose of it in a location where it will not cause impacts to streams or the BMP. Erosion has occurred or Provide additional erosion riprap is displaced. protection such as reinforced turf matting or riprap if needed to prevent future erasion problems. Weeds are present. Remove the weeds, preferably by hand. If pesticides are used, wipe them on the plants rather than spraying. The main treatment area A visible layer of sediment Search for the source of the has accumulated. sediment and remedy the problem if possible. Remove the sediment and dispose of it in a location where it will not cause impacts to streams or the BMP. Replace any media that was removed in the process. Revegetate disturbed areas immediately. Water is standing more than Replace the top few inches of filter 5 days after a storm event. media and see if this corrects the standing water problem. If so, revegetate immediately. If not, consult an appropriate professional for a more extensive repair. Weeds and noxious plants are Remove the plants by hand or by growing in the main wiping them with pesticide (do not treatment area. spray). The embankment Shrubs or trees have started Remove shrubs or trees to grow on the embankment. immediately. An annual inspection by an Make all needed repairs. appropriate professional shows that the embankment needs repair. The outlet device Clogging has occurred. Clean out the outlet device. Dispose of the sediment off -site. The outlet device is damaged I Repair or replace the outlet device. The receiving water Erosion or other signs of Contact the NC Division of Water damage have occurred at the Quality 401 Oversight Unit at 919- outlet. 733-1786. RECT MAR 3 0 2009 Form SW401-Infiltration Basin O&M-Rev.3 Page 2 of 3 Z f MAR 3 0 2009 Permit Number. �(tij�j (to he provided by DWQ) 113Y:-- —_ I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project name:P-1063 MOUT Enhancements BMP drainage area number: Print Titic:Deputy Public Works Officer Note: 'rhe 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. w""'4 , a Notary Public for the State of County of UoJl,�'d , do hereby certify that personally appeared before me this 1� day of >1'�4 , c;20d9 , and acknowledge the due execution of the forgoing infiltration basin maintenance requirements. Witness my hand and official seal, AUCI A DONN ftl Notary Public Onslow CowNy State of North Corolgq Commission Expires Oct 2a SEAL My commission expires r l REC'D MAR 3 0 2009 Page 3 of 3 Form SW401-Infiltration Basin O&M-Rev.3 VaA Cowwttalou fxVi 4 Ocl 52' 5010 awls 01 Vow C0a0Nu0 puofom C;Onu:A mosa44 onoita VICE Y 40KAXII@ Permit Number...! W O Ug354�) (to be provided by DWQ) Drainage Area Number:_ Infiltration 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. Important maintenance procedures: — The drainage area will be carefully managed to reduce the sediment load to the infiltration basin. — Immediately after the infiltration basin is established, the vegetation will be watered twice weekly if needed until the plants become established (commonly six weeks). — No portion of the infiltration basin will be fertilized after the initial fertilization that is required to establish the vegetation. — The vegetation in and around the basin will be maintained at a height of approximately six inches. After the infiltration basin is established, it will be inspected once a quarter and within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance will be kept in a known set location and will be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. BMP element: Potentialproblem: How I will remediate theproblem: The entire BMP Trash/debris is present. Remove the trash/debris. The perimeter of the Areas of bare soil and/or Regrade the soil if necessary to infiltration 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. The inlet device: pipe or The pipe is clogged (if Unclog the pipe. Dispose of the swale applicable). sediment off -site. The pipe is cracked or Replace the pipe. otherwise damaged (if applicable). Erosion is occurring in the Regrade the swale if necessary to swale (if applicable). smooth it over and provide erosion control devices such as reinforced turf matting or riprap to avoid future problems with erosion. REC'D MAR 3 u ZOOS Form SW401-Infiltration Basin O&M-Rev.3 Page I of 3 JFZIFCIF:17V7F�'� MAR ,3 0 2009 BY: BMP element: Potentialproblem: How I will remediate theproblem: The forebay Sediment has accumulated Search for the source of the and reduced the depth to 75% sediment and remedy the problem if of the original design depth. possible. Remove the sediment and dispose of it in a location where it will not cause impacts to streams or the BMP. Erosion has occurred or Provide additional erosion riprap is displaced. 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 pesticides are used, wipe them on the plants rather than spraying. The main treatment area A visible layer of sediment Search for the source of the has accumulated. sediment and remedy the problem if possible. Remove the sediment and dispose of it in a location where it will not cause impacts to streams or the BMP. Replace any media that was removed in the process. Revegetate disturbed areas immediately. Water is standing more than Replace the top few inches of filter 5 days after a storm event. media and see if this corrects the standing water problem. If so, revegetate immediately. If not, consult an appropriate professional for a more extensive repair. Weeds and noxious plants are Remove the plants by hand or by growing in the main wiping them with pesticide (do not treatment area. spray). The embankment Shrubs or trees have started Remove shrubs or trees to grow on the embankment. immediately. An annual inspection by an Make all needed repairs. appropriate professional shows that the embankment needs repair. The outlet device Clogging has occurred. Clean out the outlet device. Dispose of the sediment off -site. The outlet device is damaged I Repair or replace the outlet device. The receiving water Erosion or other signs of Contact the NC Division of Water damage have occurred at the Quality 401 Oversight Unit at 919- outlet. 733-1786. RECD MAR 3 0 2009 Form SW40I-Infiltration Basin O&M-Rev.3 Page 2 of 3 �C V�7 1� MAR 3 0 2009 Permit Number:e]��cj�S oo be provided by D IVQ) BY: ----- acknowledge and agree by my signature below that 1 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:P-1063 MOUT Enhancements BMP drainage area Print name Title: Deputy Public Works Officer Address:Blda. 1005 Michael Rd., MCB Camp Lejeune, NC 28547 Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. a Notary Public for the State of County of ewi 1d do hereby certify that -Ole, personally appeared before me thisvG day of �-?dam, and acknowledge the due execution of the forgoing infiltration basin maintenance requirements. MICE A BONNETTE Notary Public Omlow County Btote of North Carolina mmlWon Expires Oct 23. 2010 SEAL My commission expires �'V Witness my hand and official seal, A REC'D MAR 3 0 2009 Form SW401-Infiltration Basin O&M-Rev.3 Page 3 of 3 y� �,owwtF`ynv Exblwa Ocy 59' S010 rate of S4wiu to�ct;va pvaios ConutA ►SaiaiA ynStI1C YtfCE q 6ONNEilE MAR 3 0 2009 Infiltration Basin Permit Number: 0 Q)33b (to be provided by DWQ) Drainage Area Number: 7j d 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: — The drainage area will be carefully managed to reduce the sediment load to the infiltration basin. — Immediately after the infiltration basin is established, the vegetation will be watered twice weekly if needed until the plants become established (commonly six weeks). — No portion of the infiltration basin will be fertilized after the initial fertilization that is required to establish the vegetation. — The vegetation in and around the basin will be maintained at a height of approximately six inches. After the infiltration basin is established, it will be inspected once a quarter and within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance will be kept in a known set location and will be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. BMP element: Potentialproblem: How 1 will remediate theproblem: The entire BMP Trash/debris is present. Remove the trash/debris. The perimeter of the Areas of bare soil and/or Regrade the soil if necessary to infiltration 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. The inlet device: pipe or The pipe is clogged (if Unclog the pipe Dispose of the swale applicable). sediment off -site. The pipe is cracked or Replace the pipe. otherwise damaged (if applicable). Erosion is occurring in the Regrade the swale if necessary to swale (if applicable). smooth it over and provide erosion control devices such as reinforced turf matting or riprap to avoid future problems with erosion. T EC'D MAR 3 0 2009 Form SW401-infiltration Basin O&M-Rev.3 Page l of 3 MAR 3 0 2009 .13Y:_____—_ BMP element: Potentialproblem: How I will remediate theproblem: The forebay Sediment has accumulated Search for the source of the and reduced the depth to 75% sediment and remedy the problem if of the original design depth. possible. Remove the sediment and dispose of it in a location where it will not cause impacts to streams or the BMP. Erosion has occurred or Provide additional erosion riprap is displaced. 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 pesticides are used, wipe them on the plants rather than spraying. The main treatment area A visible layer of sediment Search for the source of the has accumulated. sediment and remedy the problem if possible. Remove the sediment and dispose of it in a location where it will not cause impacts to streams or the BMP. Replace any media that was removed in the process. Revegetate disturbed areas immediately. Water is standing more than Replace the top few inches of filter 5 days after a storm event. media and see if this corrects the standing water problem. If so, revegetate immediately. If.not, consult an appropriate professional for a more extensive repair. Weeds and noxious plants are Remove the plants by hand or by growing in the main wiping them with pesticide (do not treatment area. spray). The embankment Shrubs or trees have started Remove shrubs or trees to grow on the embankment. immediately. An annual inspection by an Make all needed repairs. appropriate professional shows that the embankment needs repair. 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 NC Division of Water damage have occurred at the Quality 401 Oversight Unit at 919- outlet. 733-1786, RECD MAR 3 0 2009 Form SW401-Infiltration Basin O&M-Rev.3 Page 2 of 3 pMAR 3 0 200E9 `` Permit Number: St /� (� j O �3 3Y; (to be provided by DWQ) I acknowledge and agree by my signature below that 1 am responsible for the performance of the maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project name:P-1063 MOUT Enhancements BMP drainage area Print namc:Carl Baker Titic:DDc uty Public Works Officer Address:Bldg. 1005 Michael Rd., MCB Camp Lcieune, NC 28547 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, � 1 e.0 Ofln e_*1e_' , a Notary Public for the State of County of Oh J h) LJ , do hereby certify that l— personally appeared before me this a day of M&vck., �QO�, and acknowledge the due execution of the forgoing infiltration basin maintenance requirements. Witness my hand and official seal, AUCI A 20144M "Ofory ►ubft Onslow County State of ttemn Corollno SEAL My commission expires o6f RECD MAR 3 0 2009 Form SW401-Infiltration Basin O&M-Rev.3 Page 3 of 3 9ii'litMQB A IOUA aiMul victow Ytnuoa wotono 00110103 ntso" to atof8 OIOT .LS fo0 ®otigX3 notetlmmoo vM MAR 3 0 2009 Permit Number:;='y-QjQ33v (to he provirlec by D{V 1t Lo�7.Drainage Area Number:C�'L r�Jf4Filter Strip, Resred-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 The flow splitter device is Unclog the conveyance and dispose (if applicable) clogged. of any sediment off -site. The Flow splitter device is Make any necessary repairs or damaged. replace if damage is too large for repair. RECD MAR 3 0 2009 Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 1 of 3 "� v 7-_ MAR 3 0 2009 -9y: BMP element: Potentialproblem: How I will remediate theproblem: The swale and the level The swale is clogged with Remove the sediment and dispose lip sediment. 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 application. 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 Study the site to see if a larger damaged or ripap is rolling bypass channel is needed (enlarge if downhill. necessary). After this, reestablish the erosion control material. The filter strip Grass is too short or too long Maintain grass at a height of f applicable). approximately 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 REC'D MAR 3 0 2009 Page 2 of 3 MAR 3 0 200Permit Number: r_ (to be provided by DWQ) I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project 17ame:P-1063 MOUT Enhancements BMP drainage area Print namc:Carl Baker Title: Deputy Public Works Officer Address:Blde. 1005 Michael Rd., MCB Camp Lejeune, NC 28547 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, ff 111C-e— 9011 A e— -q e, - , a Notary Public for the State of County of 019S`O(A) do hereby certify that personally appeared before me this day of MQ V&JL 11 jp % , and acknowledge the due execution of the forgoing filter strip, riparian buffer, and/or level spreader maintenance requirements. Witness my hand and official seal, AUCE A BONNETIS Ii Notary Kollc Onstow County Stag of N0Af1 0101 to My CommWW ExoUu ON 23. 2010 SEAL My commission expires 6:�J 4X�/� RECD MAR 3 0 2009 Form SWU40I-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 3 of 3 44 Cowwroalou Exbool oCl 37' 3010 Vale ol NOUu Calouuo outlom conulA NGIOIA bnDilc vrlcE v oo14M.fu: .� Permit Number: (to be provided by DWQ) Drainage Area Number: f 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 Iog 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. stem The flow splitter device The flow splitter device is Unclog the conveyance and dispose (if applicable) clogged. of any sediment off -site. The flow splitter device is Make any necessary repairs or damaged. replace if damage is too large for repair. RECEIVED AUG 2 5 2011 BY: 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 time and a one-time fertilizer application. Trees or shrubs have begun Remove them. to grow on the swale or just clownslope 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 Study the site to see if a larger damaged or ripap is rolling bypass channel is needed (enlarge if downhill. 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). a roximatel 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 -lime 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. 401 Oversight Unit at 919-733-1786. Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 AUG 2 5 2011 LPege=2--of--3 — • Permit Number: S(.() 9 //0& (I (to be provided by DWQ) I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project name:EWansion of MOUT CTF Training Area BMP drainage area Print name:Carl H Baker Title:Deputy Public Works Director Address: MCB Camp Lejeune, 1005 Michael Road- Camp Leieune NC 28547 Date: Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. �,r(I, S:, �V L1� Nb rris a Notary Public for the State of i`1t rik 0 1 tnat , County of Gn S)aM1 do hereby certify that �r ( personally appeared before me this Qtoll day of 'ILA iy aDI and acknowledge the due execution of the forgoing filter strip, riparian buffer, and/or level maintenance requirements. Witness my hand and official seal, 7 C6A-A� SYLVIA NORRIS NOTARY PUBLIC ONSLOW COUNTY, 1^ MY COMMISSION EXPIRES p5 SEAL My commission expires oZ� AUG 2 5 2011 i Y: Form S WU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 3 of 3 Permit No. )I.00 0 03Yv no be provided by DWQ) Aof MASTORMWATER WAre' MANAGEMENT PERMIT APPLICATION FORM WDENR 401 CERTIFICATION APPLICATION FORM oE INFILTRATION BASIN SUPPLEMENT This form must be filled out, printed and submitted. The Required Items Checklist (Pad III) must be printed, filled out and submitted along with all of the required information I. PROJECT INFORMATION Project Name P-1063 MODT Enhancements Contact Person Chris Gamer, P.E. Phone Number 804,254.6668 Date 4114/2009 Drainage Area Number 1, 2 8 7 II. DESIGN INFORMATION Site Characteristics Drainage area 210,960.00 f2 Impervious area 67.082.00 It' Percent impervious 0.32 % Design rainfall depth 3.70 in Peak Flow Calculations 1-yr, 24-hr rainfall depth 3.70 in 1-yr, 24-hr intensity inlhr Pre -development 1-yr, 24-hr discharge 0.01 felsec Post -development 1-yr, 24-hr discharge 1.25 felsec PretPost 1-yr, 24-hr peak flow control 1.24 fO/sec Storage Volume: Non -SA Waters Minimum design volume required 8' Design volume provided 83 Storage Volume: SA Waters 1.5'runoff volume 8960.00 83 Pre -development 1-yr, 24-hr runoff volume 3,291.00 43 Post -development 1-yr, 24-hr runoff volume 22,376.00 g3 Minimum required volume 19085.00 g' Volume provided 19,0%.00 8 Soils Report Summary Soil type Ball, MaC Infiltration rate 3.70 inthr SHWT elevation 21.50 fmsl Basin Design Parameters Drawdown time 2.00 days Basin side slopes 3.00 :1 Basin bottom elevation 24.00 fmsl Storage elevation 25.77 fmsl Storage Surface Area 12,232.00 flz Top elevation 25.80 fmsl Basin Bottom Dimensions ilr'r•e5 via, Si-pe� Basin length 172.30 it Basin width 61.80 It Bottom Surface Area 9,300.00 f? OK OK OK APR 2 0 2009 Pone SW401-InRtra ion BasimRev.4 Pads I. S 11. Dedpn Summery, Pape 1 or 2 Permit No::5i a ) (ro Da pronoed Dy DINQ) Additional Information Maximum runoff to each inlet to the basin? 1.99 ac-in OK Length of vegetative filter for overflow 50.00 R OK Distance to structure 15.00 ft OK Distance from surface waters N/A it OK Distance from water supply well(s) N/A it OK Separation from impervious soil layer NIA It OK Naturally occuring soil above shwt 1.67 It OK Bottom covered with 44n of dean sand? Y (Y or N) OK Proposed drainage easement provided? NIA (Y or N) OK Capures all runoff at ultimate buildout7 Y (Y or N) OK Bypass provided for larger storms? Y (Y or N) OK Pretreatment device provided GRASS SWALE APR 2 0 ZOOS __r. Form SW401-InrdUatlon BaslnRwA Pads I. S II. Design Summary, Pepe 2 or 2 APR 5 2009 Permit No.' (to be provided by DWG) By. III. REQUIRED ITEMS CHECKLIST = a - J Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Pagel Plan Initials Sheet No. C /O� 1. Plans (1" - 50' or larger) of the entire site showing: C _f) - Design at ultimate build -out, f - Off -site drainage (if applicable), '7 - Delineated drainage basins (include Rational C coefficient per basin), - Basin dimensions, - Pretreatment system, - High flow bypass system, - Maintenance access, - Proposed drainage easement and public right of way (ROW), - Overflow device, and - Boundaries of drainage easement. 2. Partial plan (1" = 30' or larger) and details for the infiltration basin showing: - Bypass structure, - Maintenance access, - Basin bottom dimensions, - Basin cross-section with benchmark for sediment cleanout, - Flow distribution detail for inflow, - Vegetated filter, and p! - Pretreatment device. 3. Section view of the infiltration basin (1" = 20' or larger) showing: - Pretreatment and treatment areas, and - Inlet and outlet structures. 4. A table of elevations, areas, incremental volumes & accumulated volumes to verify the volume provided. C� cs cs 5. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The results of the soils report must be verified in the field by DWQ, by completing & submitting the soils investigation request form. County soil maps are not an acceptable source of soils information. - 5 D3 6. A construction sequence that shows how the inftlration basin will be protected from sediment until the entire drainage area is stabilized. Ca cs 7. The supporting calculations. 8. A copy of the signed and notarized operation and maintenance (0&M) agreement. /' /r/ 9. A copy of the deed restrictions (if required). Form SW401-Infiltration Basin-Rev.4 Page 3 of 3 Part III. Required Items Checklist, Page 3 of 3 C Permit No. !robe pmnded by OWw ep W4TEq ® STORMWATER MANAGEMENT PERMIT APPLICATION FORM o NC EAR 401 CERTIFICATION APPLICATION FORM INFILTRATION BASIN SUPPLEMENT This form must be filled out, panted and submitted. The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information. If. PROJECT INFORMATION Project Name P-1063 MOUT Enhancements Contact Person Chris Gamer, P.E. Phone Number 804.254.6668 Date 4/14/2009 Drainage Area Number 3 II. DESIGN INFORMATION 77-1 Site Characteristics Drainage area 153,767.00 f2 Impervious area 33,977.00 f2 Percent impervious 0.22 % Design rainfall depth 3.70 in Peak Flow Calculations 1-yr. 24-hr rainfall depth 3.70 in 1-yr, 24-hr intensity inmr Pre -development 1-yr, 24-hr discharge 0.00 ft3/sec Post -development 1-yr, 24-hr discharge 0.07 ft3/seC Pre/Post 1-yr, 24-hr peak flow control 0.07 (?'/sec Storage Volume: Non -SA Waters Minimum design volume required ft3 Design volume provided it, Storage Volume: SA Waters 1.5'runolf volume 4229.00 ft3 Pre -development t-yr,24-hrrunoff volume 2,370.00 ft3 Post -development 1-yr, 24-hr runoff volume 11,853.00 113 Minimum required volume 9483.00 ft3 Volume provided 9,486.00 83 Solis Report Summary Soil type BaB, MaC Infiltration rate 6.70 inmr SHWT elevation 26.00 final Basin Design Parameters Drawdown time 2.00 days Basin side slopes 3.00 :1 Basin bottom elevation 28.00 fmsl Storage elevation 29.78 fmsl Storage Surface Area 6,274.00 ftt Top elevation 30.80 fmsl Basin Bottom Dimensions(/vre5-111 S,-fC, Basin length 99.90 it Basin width 56.90 it Bottom Surface Area 4,4202 rya OK OK OK OK I I APR 2 0 2009 1 Form SW401-Inbhrabon 8esinR.,4 paM I. a n. Oesign summery, Pepe 1 or 2 Permit No.SLO (to be provided by DWD) Additional Information Maximum runoff to each inlet to the basin? 0.49 ac-in OK Length of vegetative filter for overflow 50.00 it OK Distance to structure 15.00 it OK Distance from surface waters NIA 5 OK Distance from water supply well(s) NIA ft OK Separation from impervious soil layer NIA it OK Naturally occuring soil above short 1.67 it OK Bottom covered with 4-in of clean sand? Y (Y or N) OK Proposed drainage easement provided? NIA (Y or N) OK Capures all runoff at ultimate build -out? Y (Y or N) OK Bypass provided for larger storms? Y (Y or N) OK Pretreatment device provided GRASS SWALE APR 2 0 2009 Form SW401-In4xratlon Baa nM .a 4 Parts I. B II. Design Summary. Page 2 of 2 PermitNo.�ri�SOQiO�c7 APR 1 5 2009 1 (to be provided by DWQ) Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Pagel Plan Initials Sheet No. ,9L` 6-1 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. I� Y`C(s / C 7 2. Partial plan (1" = 30' or larger) and details for the infiltration basin showing: - Bypass structure, - Maintenance access, - Basin bottom dimensions, - Basin cross-section with benchmark for sediment cleanout, - Flow distribution detail for inflow, - Vegetated filter, and //JJ �461- C -�� - Pretreatment device. 3. Section view of the infiltration basin (1" = 20' or larger) showing: - Pretreatment and treatment areas, and - Inlet and outlet structures. 4. A table of elevations, areas, incremental volumes & accumulated volumes to verify the volume provided. Lcs 5. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The results of the soils report must be verified in the field by DWQ, by completing & submitting the soils investigation request form. County soil maps are not an acceptable source of soils information. 6. A construction sequence that shows how the infllration basin will be protected from sediment until the entre drainage area is stabilized. fire 7. The supporting calculations. ECG 8. A copy of the signed and notarized operation and maintenance (0&M) agreement. N 9. A copy of the deed restrictions (if required). Form SW401-Infiltration Basin-Rev.4 Page 3 of 3 Part III. Required Items Checklist, Page 3 of 3 Permit No. I o, 6 o 3>�_) (to be povided by DWD) ��+ �p WAT� * STORMWATER MANAGEMENT PERMIT APPLICATION FORM o WDENR 401 CERTIFICATION APPLICATION FORM INFILTRATION 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. 1. PROJECT INFORMATION 7-71 Project Name P-1063 MOUT Enhancements Contact Person Chds Gamer, P.E. Phone Number 804,254.6668 Date 411412009 Drainage Area Number II. DESIGN INFORMATION Site Characteristics Drainage area 91,912.00 fly Impervious area 26,572.00 ft' Percent impervious 0.29 % Design rainfall depth 3.70 in Peak Flow Calculations 1-yr, 24-hr rainfall depth 3.70 in 1-yr, 24-hr intensity inthr Pre -development 1-yr, 24-hr discharge 0.00 ft Isec Post -development 1-yr, 24-hr discharge 0.31 h'isec Pre/Post 1-yr, 24-hr peak flow control 0.31 8'isec Storage Volume: Non -SA Water . Minimum design volume required ff' Design volume provided g' Storage Volume: SA Waters 1.5' runoff volume 3332.00 8' Pre -development 1-yr, 24-hr runoff volume 1,417.00 ff' Post -development 1-yr, 24-hr runoff volume 8,785A0 tt' Minimum required volume 7368.00 tt' Volume provided - 7,456.00 ff' Soils Report Summary Soil type BaB Infiltration rate 4.10 inlhr SHWT elevation 35.00 fmsl Basin Design parameters Drawdown time 2.00 days Basin side slopes 3.00 :1 Basin bottom elevation 37.00 fmsl Storage elevation 37.79 fmsl Storage Surface Area 9,935.00 ft' Top elevation 38.80 first Basin Bottom Dimensions 6ro" uicr- 51ve) Basin length ..// 117.10 It Basin width 84.00 It Bottom Surface Area 8,940.00 ft1 OK OK OK OK APR 2 0 2009 Form SW401-Infiarellun Benin-Rev.4 Parts I. a II. Design Summary, Pape 1 d 2 PermitNo. no be Provided by DWQ) Additional Informatlon Maximum runoff to each inlet to the basin? 0.60 ac-in OK Length of vegetative filter for overflow 50.00 It OK Distance to structure 15.00 R OK Distance from surface waters NIA ft OK Distance from water supply well(s) NIA ft OK Separation from impervious soil layer N/A ft OK ' Naturally occuiing soil above shwt 1.67 it . OK Bottom covered with 44n of clean sand? Y (Y or N) OK Proposed drainage easement provided? NIA (Y or N) OK Capures all runoff at ultimate build -out? Y (Y or N) OK Bypass provided for larger storms? Y (Y or N) OK Pretreatment device provided GRASS SWALE APR 2 0 2009-� Form SW401-IrJiaration Basin-nev.e Parts 1. 611. Design Summary. Pape 2 or 2 I4pR 1 5 2009 Permit No. 4.UJ�6C)�a 5�zi (to be provided by DWQ) Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Pagel Plan Initials Sheet No. 1. Plans (1" - 50' or larger) of the entire site showing: C ro - Design at ultimate build -out, _(7 5— - Off -site drainage (if applicable), C-Saf - 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. Crr 2. Partial plan (1" = 30' or larger) and details for the infiltration basin showing: - Bypass structure, - Maintenance access, - Basin bottom dimensions, - Basin cross-section with benchmark for sediment cleanout, - Flow distribution detail for inflow, - Vegetated filter, and - Pretreatment device. j2(L L -'Y 3. Section view of the infiltration basin (1" = 20, or larger) showing: - Pretreatment and treatment areas, and - Inlet and outlet structures. n L(r C SST 4. A table of elevations, areas, incremental volumes & accumulated volumes to verify the volume provided. GG Ca cS 5. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The results of the soils report must be verified in the field by DWQ, by completing & submitting the soils investigation request form. County soil maps are not an acceptable source of soils information. 6. A construction sequence that shows how the infitlration basin will be protected from sediment until the entire drainage area is stabilized. 7. The supporting calculations. ✓1 « 8. A copy of the signed and notarized operation and maintenance (0&M) agreement. 9. A copy of the deed restrictions (if required). Form SW401-Infiltration Basin-Rev.4 Page 3 of 3 Part III. Required Items Checklist, Page 3 of 3 Permit N'_5 91140// (ro be provided by DWO) ®�� 2'�1F -W--AT��9O NCDENR 'P> 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) most be printed, filled out and submitted along with all of the required information. Project name Expansion of MOUTC1 F Training Area Contact person I Joseph C. Avolis, PE i Phone number 1252-533-0068 1 Date 15/3112011 I Drainage area number 11 Site Characteristics Drainage area Impervious area, post -development % impervious Design rainfall depth 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 prelpost control of the lyr 24hr stone 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 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 stared above the state -required temp. pool? Elevation of the top of the additional volume Form SW401-Wet Detention Basin-Rema-9l1]/09 ( 612,993 flz I 193,072.f� 31.53 % I 1.51in 25,336!It, 14,945'ift3 62,397'' ft3 47,452 113 47,452 N3 i -;(Y or N) 3.7-in lrovti&kZ 1 0.18;(unilless) 0.51!(unifless) - 3 L" — ,," cF1cs� 0.15'jn/hr Insufficient. Check intensity calculation. pK- 11A 0.39 ft'Isec 1.09 ft'/sec 0.70 B31sec I 23.45! Ind 21.50'fmsl 21.50ifmsl 22.00"fmsl 21.01 16.00; fmsl 1 15.00 fmsl 1.00 It N (Y or N) 23.5 fmsl OK RECEIVED AUG 2 5 2011 EY: Parts I. a II. Design Summery, Page 1 of Permit No. (to be mvaJ&d by DW0) I0DESIGNIINFORMATION ,9, .', ""''a... :,'1.�-s�.� s,. ' '-.�}�#T'mS'' FEi"se;.. i ' r -le wiafi� 1;',y '„`.:hr Surface Areas Area, temporary pool Area REQUIRED, permanent pool SAIDA ratio Area PROVIDED, permanent pool, Apra _,, Area, bottom of 10ft vegetated shelf, A. v„ s Area, sediment cleanout, top elevation (bottom of pond), Awj and Volumes Volume, temporary pool Volume, permanent pool, Vram p, Volume, forebay (sum of forebays if more than one forebay) Forebay %of permanent pool volume 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 10-21b) Volume, permanent pool, V,,mn-pw Area provided, permanent pool, Apm,ryou Average depth calculated Average depth used in SAIDA, d„, (Round to nearest 0.5ft) Calculation option 2 used? (See Figure 10-26) Area provided, permanent pool, Apm,,,_pw Area, bottom of 1 Oft vegetated shelf, A, meo ir......__ 26,725' ft' 17,269 ft' 2.82! (unitless) 20,048Ift` OK I 16,771!ft� 8,242'. fly n 9 ypyl,.,q�c 4fi4BT:ft3 /f 714Au ficierA! Volume does not agree with data previously entered. i 74,535:ft' 15,088,ftl 20.2% % OK 90 'Y j(Y or N) N (Y or N) 2.82 limitless) n �(Yor N) 74,535 ft' 20,048 fit` Ift Need 3 ft min. Ift Y (Y or N) 20,048 ft` 16,771 ft' Area, sediment cleanout, top elevation (bottom of pond), Aw.,a 8,242 ft' 'Depth' (distance h/w bottom of 10ft shelf and top of sediment) 5,00 ft Average depth calculated 4.19.ft OK Average depth used in SAIDA, d„, (Round to nearest 0.5ft) 4ff ft OK Drawdown Calculations Drawdown through onfice? Diameter of orifice (if circular) Area of orifice (if -non -circular) Coefficient of discharge (Co) Driving head (Ho) Drawdown through weir? Weir type Coefficient of discharge IQ 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 entice or weir) Storage volume drawdown time Additional Information Vegetated side slopes Vegetated shelf slope Vegetated shelf width Length of flowpalh to width ratio Length to width ratio Trash rack for overflow & orifice? Freeboard provided Vegetated filter provided? Recorded drainage easement provided? Capures all runoff at ultimate buildcul? Drain mechanism for maintenance or emergencies is: f -- i(Yor N) 2.75'in Enter either diameter of orifice or area of non -circular orifice. Do not enter —54442 both diameter and area for a circular orifice. 0.60'. (uni less) 0.651ft N '(Y or N) i(unitless) ( !(unitless) ft Ift 0.39; ft'/sec 1.091'ft/sec ( 0.17f fta)sec 1 3.301days OK, draws down in 2-5 days. .___.__. 31:1 OK 101:1 OK I 10.Oift OK I 3i:1 OK 1 3.0'.:1 OK Y ,(Yor N) OK 1.01ft OK I Y !(Y or-N) OK Y (Yor N) OK Form S W401-Wet Detention Basin -Rev 11-9I17I09 Pans I. & If. Design Summary, Page 2 of 2 AUG 2 5 2011 Permit No. ' (to be provided by DWO) 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. C1/C2 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. _f � C3 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. n t4 C3 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. C2 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. 44— C3 5. A table of elevations, areas, incremental volumes & accumulated volumes for overall pond and for forebay, to verify volume provided. C2 6. A construction sequence that shows how the wet detention basin will be protected from sediment until the entire drainage area is stabilized. Attached 7. The supporting calculations. Attached 8. A copy of the signed and notarized operation and maintenance (0&M) agreement. NIA 9. A copy of the deed restrictions (if required). 4k Attached 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. TZ.1VIED AUG 2 5 2011 Form SW401-Wet Detention Basin-Rev.8-9/17/09 Part III. Required Items Checklist, Page 1 of 1 B Y: of WArf4 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. PROJECT INFORMATION '"Y'I r + rfS7`s:_` '' •''"'ri. r0 x °'"1` Project name - P14790utdoor HIT Contact name Thomas Bradshaw, Public Works Design, Civil Branch Phone number 910451-3238 Date Drainage area number -5u 6baSI n S —Xs 3, 4, 9, 10, & 14 (2017 Project P1479 Outdoor HIT) [II., DESIGN INFORMATION; The purpose of the LS-VFS SW Rule: Diffuse flow at the end of a swale discharging to SA waters Stormwater enters LS-VFS from The drainage area Lp- Pro 14% Type of VFS Wooded stormwater setback (slope < 5 %) Explanation of any "Other' responses above If Stormwater Enters the LS-VFS from the Drainage Area Drainage area Impervious surface area Percent impervious Rational C coefficient Peak flow from the 1 in/hr storm Time of concentration Rainfall intensity, 10-yr storm Peak Flow from the 10-yr storm Design storm Maximum amount of flow directed to the LS-VFS Is a flow bypass system going to be used? Explanation of any'Other' responses above If Stormwater Enters the LS-VFS from a BMP Type of BMP Peak discharge from the BMP during the design storm Peak discharge from the BMP during the 10-year storm Maximum capacity of a 100-foot long LS-VFS Peak flow directed to the LS-VFS Is a flow bypass system going to be used? Explanation of any "Other" responses above LS-VFS Design . Forebay surface area Depth of forebay at stormwater entry point Depth of forebay at stormwater exit point Feet of level lip needed per cfs Computed minimum length of the level lip needed Length of level lip provided 167,457 f? 44,073 ftz 26.32 0 38 1,46 cfs 500 min 0.75 inmr 1.10 cfs l inch/hour storm 1.1 cfs N (Y or N) A flow bypass system is required. The Swale before the LS will store the 10-yr storm; therefore, no bypass is required. Do not complete this section of the form. cfs cfs Do not complete this section of the form. 2 cfs cfs Do not complete this section of the form. (Y or N) sq ft in in 50 fl/cfs 55 fit 100 fit OCT 0 2 20i7 n BY. -- Form SW401 - LS-VFS - 27Ju12011 - Rev.9 page 1 of 3 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): 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 60 h 35.00 fist 34.50 fmsl 0.63 % N (Y or N) OK Y (Y or N) N (Y or N) N (Y or N) Pick one. W fl/sec (Y or N) I11.:REQUIRED',fiEMS.CHECKLIST.' '6?• I!fit. 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 -out, - 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. Forrn SW401 - LS.VFS - 27Jut2011 - Rev.9 Initials Page or plan sheet number and any notes: CG-101 EY ' OCT 0 2 267 BY:_ ----- page 2 of 3 2. Plan details (1" = 30' or larger) for the level spreader showing: C-503 - Forebay(if applicable), - High flow bypass system, - One foot topo lines between the level lip and top of stream bank, - Proposed drainage easement, and 7 0q Nu i� �C I L ,( i - Design at ultimate build -out. p fi BY:----���yyy 3. Section view of the level spreader (1' = 20' or larger) showing: C-503 - 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). 5. A construction sequence that shows how the level spreader will be protected from sediment unfit the entire drainage area is stabilized. 6. If a non -engineered VFS is being used, then provide a photograph of the VFS showing that no draws are present. 7. The supporting calculations. 8. A copy of the signed and notarized operation and maintenance (0&M) agreement. Form SW401 - LS-VFS - 27Ju12011 - Rev.9 page 3 of 3 5u4 110(i w .. y ®T �Of Wa}Fq` 0 W; 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. PROJECT INFORMATION Project name Expansion of MOUT CTF Training Area Contact name Joseph C. Avolis, PE Phone number 252-633-0068 Date September 12, 2011 Drainage area number 1 II: DESIGN INFORMATIOM The purpose of the LS-VFS SW Rule: Diffuse flow at the end of a swale discharging to SA waters Stormwater enters LS-VFS from A BMP Type of VFS Engineered filter strip (graded 8 sodded, slope < 8%) Explana8on of any 'Other' responses above If Stormwater Enters the LS•VFS from the Drainage Area Drainage area I? Do not complete this section of the form. Impervious surface area ft' 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 in/hr storm cis 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 in/hr Do not complete this section of the form. Peak flow from the 10-yr storm cfs Do not complete this section of the form. Design storm Maximum amount of now 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 0.167 cis Peak discharge from the BMP during the 10-year storm 2.3 cfs Maximum capacity of a 100-foot long LS-VFS 10 cis Peak flow directed to the LS-VFS 2.3 its Is a flow bypass system going to be used? N (Y or N) Explanation of any 'Other' responses above LS-VFS Design Forebay surface area N/A sg it No forebay is required, Depth of forebay at stormwater entry point N/A in Depth of forebay at stormwater exit point N/A in Too deep. Feet of level lip needed per cis 10 fUcfs Computed minimum length of the level lip needed 23 it Length of level lip provided 50 ft Width of VFS 55 ft Elevation at downslope base of level lip 21.40 fmsl Elevation at the end of the VFS that is farthest from the LS 21.00 fmsl RE C/''a Ip Ty��t''�, SEP 1 4 2011 Form S W401 - LS-VFS - 27Ju12011 - Rev.9 page i of BY: Slope (from level lip to the end of the VFS) 0.73 Are any draws present in the VFS? N (Y or N) OK Is there a collector Swale at the end of the VFS? N (Y or N) Bypass System Design (if applicable) ' Is a bypass system provided? N (Y or N) Is there an engineered flow splitting device? N (Y or N) Dimensions of the channel (see diagram below): M ry B ry W ry y (flow depth for 10-year storm) ry freeboard (during the 10-year storm) fl Peak velocity in the channel during the 10-yr storm ' f /sec Channel lining material Pick one: Does the bypass discharge through a wetland? (Y or N) Does the channel enter the sueam at an angle? (Y or N) Explanation of any 'Other' responses above N 1 __ ybiniitlg (lie l0-yrslbnw 1 _____n;___y j B ± III. REQUIRED ITEMS CHECKLIST 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 -out, - Off -site drainage (if applicable), - Delineated drainage basins (include Rational C coefficient per t Forebay (if applicable), High flow bypass system, Maintenance access, Proposed drainage easement and public right of way (ROW), at Boundaries of drainage easement. 2. Plan details (1' = 30' or larger) for the level spreader showing: - Forebay (if applicable), - High flow bypass system, - One foot tope lines between the level lip and top of stream bank - Proposed drainage easement, and - Design at ulfimate build -out. Farm S W401 - LS.VFS - 27Ju12011 - Rev.9 or plan sheet number and any notes: page 2 of 3 3. Sectionoview of the level spreader (1' = 20' or 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). 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 non -engineered VFS is being used, then provide a photograph of the VFS showing NIA that no draws are present. 7. The supporting calculations. 8. A copy of the sigr,dd and notarized operation and maintenance (08M) agreement. RI C U V ED Form SW401-LS-VFS-27Ju12011-Rev.9 SEP 1 4 2011 page 3 of i_ • AL J �Ut]J o=gyp wniFgpc NCDENR STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT This form must be completely filled out, printed and submitted. DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEET)I 11. PROJECT INFORMATION Project name P-1063 MOUT Enhancements Contact name Chris Garner, P.E. Phone number 804.254.6668 Date April 14, 2009 Drainage area number 4 II. DESIGN INFORMATION For Level Spreaders Receiving Flow From a BMP Type of BMP Drawdown Flow from the BMP cis For Level Spreaders Receiving Flow from the Drainage Area Drainage area 91,912.00 ft2 Impervious surface area 26,572.00 flz Percent impervious 28.91 % Rational C coefficient 0.38 Peak Flow from the i inlhr storm 0.80 cis Time of concentration 14.00 min Rainfall intensity, 10-yr storm 4.9 inlhr Peak Flow from the 10-yr storm 3.93 cfs Where Does the Level Spreader Discharge? To a grassed biorelention cell? N (Y or N) To a mulched biorelention cell? N (Y or N) To a wetland? N (Y or N) To a filter strip or riparian buffer? Y (Y or N) Please complete filler step charactenzation below. Other (specify) Filter Strip or Riparian Buffer Characterization (if applicable) Width of grass 50.00 ft Width of dense ground cover It Width of wooded vegetation If Total width 50.00 If Elevation at downslope base of level lip 36.75 fmsl Elevation at top of bank of the receiving water 36.25 fmsl Slope (from level lip to to top of bank) 1.00 % OK Are any draws present? N (Y or N) OK Level Spreader Design Forebay surface area sq It Feet of level lip needed per cis 13 fvcfs Answer "Y" to one of the following: Length based on the 1 inmr storm? (Y or N) Length based on the 10-yr storm? Y (Y or N) Length based on the BMP discharge rate? (Y or N) Design Flow 3.93 cis Is a bypass device provided? N (Y or N) A bypass device is not needed. Form SW401-Level Spreader, Filter Slnp, Restored Riparian Buffer-Rev.5 Pans I. and II. Design Summary, page 1 of 3 Length of the level lip Are level spreaders in series? Bypass Channel Design (if applicable) Does the bypass discharge through a wetland? Does the channel enter the stream at an angle? Dimensions of the channel (see diagram below): M B W y Peak velocity in the channel during the 10-yr storm Channel lining material ♦ W i M 52.00 ft Level spreader length OK. N (YorN) 4Pn I (Y or N) Do not complete this section of the worksheet. (Y or N) Do not complete this section of the worksheet. Do not complete this section of the worksheet. ft Do not complete this section of the worksheet. ft Do not complete this section of the worksheet. ft Do not complete this section of the worksheet. ft Do not complete this section of the worksheet. efs Do not complete this section of the worksheet. Do not complete this section of the worksheet. Y 1 B 1 i I M Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Pans I. and If Design Summary, page 2 of 3 APR : 5 260 IIII. REQUIRED ITEMS CHECKLIST I-- .--- - - -_ -_J , I Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Pagel Plan Initials Sheet No. KL(- C-1 o 7 1. Plans (1" - 50' or larger) of the entire site showing: e , j I ' Design at ultimate build -out, 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. /6/ � C-(07 2. Plan details (1" = 30' or larger) for the level spreader showing: - Forebay (if applicable), - High flow bypass system, - One foot topo lines between the level lip and top of stream bank, - Proposed drainage easement, and - Design at ultimate build -out. 3. Section view of the level spreader (1" = 20' or larger) showing: - Underdrain system (if applicable), - Level lip, - Upslope channel, and Downslope filter fabric. 4. A date -stamped photograph of the filter strip that clearly shows the type of vegetation that is present. 6'-5D3 5. A construction sequence that shows how the level spreader will be protected from sediment unfil the entire drainage area is stabilized. CF�tS 6. The supporting calculations. 7. A copy of the signed and notarized operation and maintenance (0&M) agreement. N/- B. A copy of the deed restrictions (if required). Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Part III, page 3 of 3 �� OF W ATFH 4Pk 1 5 2009 0= of NCDENR - STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT This form must be completely filled out, printed and submitted. DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEET)! I. PROJECT INFORMATION Project name P-1063 MOUT Enhancements Contact name Chris Gamer, P.E. Phone number 804.254.6668 Date April 14, 2009 Drainage area number 1, 2 & 7 Type of BMP Drawdown Flow from the BMP cfs For Level Spreaders Receiving Flow from the Drainage Area Drainage area 210,960.00 ft' Impervious surface area 67,082.00 ftz Percent impervious 31.80 % Rational C coefficient 0.40 Peak Flow from the 1 in/hr storm 1.94 cfs Time of concentration 12.00 min Rainfall intensity, 10-yr storm sin/hr Peak Flow from the 10-yr storm 9.69 cfs Where Does the Level Spreader Discharge? To a grassed bioretention cell? N (Y or N) To a mulched bioretenlion cell? N (Y or N) To a wetland? N (Y or N) To a filler strip or riparian buffer? y (Y or N) Please complete filter strip characterization below. Other (specify) Grassed Surface (this is the bypass from the infiltration basin) Filter Strip or Riparian Buffer Characterization (if applicable) Width of grass 50.00 ft Width of dense ground cover ft Width of wooded vegetation ft Total width 50.00 ft Elevation at downslope base of level lip 24.60 fmsl Elevation at top of bank of the receiving water 23.00 fmsl Slope (from level lip to to top of bank) 3.20 % OK Are any draws present? N (Y or N) OK Level Spreader Design Forebay surface area sq ft Feet of level lip needed per cfs 13 fvcfs Answer 'Y' to one of the following: Length based on the 1 in/hr storm? (Y or N) Length based on the 10-yr storm? Y (Y or N) Length based on the BMP discharge rate? (Y or N) Design Flow 9.70 cfs Is a bypass device provided? N (Y or N) A bypass device is not needed. Form SW4e1-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Pans I. and II. Design Summary, page 1 of 2 Length of the level lip Are level spreaders in series? APR 1 5 2009 130.00 ft Level spreader length OK. �Y.---N- - (Y-or N) Bypass Channel Design (if applicable) Does the bypass discharge through a wetland? Does the channel enter the stream at an angle? Dimensions of the channel (see diagram below): M 8 W y Peak velocity in the channel during the 10-yr storm Channel lining material (Y or N) Do not complete this section of the worksheet. (Y or N) Do not complete this section of the worksheel. Do not complete this section of the worksheet. It Do not complete this section of the worksheel. ft Do not complete this section of the worksheel. It Do not complete (his section of the worksheet. It Do not complete this section of the worksheet. cis Do not complete this section of the worksheet. Do not complete this section of the worksheet. ♦ W r 1 I I ___� M M 1 D 1 Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Parts I. and 11, Design Summary, page 2 of 3 APR 1 5 20J5 T 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. Pagel Plan Initials Sheet No. CC— C _l ° ` 1. Plans (1" - 50' or larger) of the entire site showing: C _ l l s— - Design at ultimate build -out, - 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. �L(r C i o to 2. Plan details (1" = 30' or larger) for the level spreader shoving: - Forebay (if applicable), - High flow bypass system, - One foot topo lines between the level lip and top of stream bank, - Proposed drainage easement, and - Design at ultimate build -out. C 5-03 3. Section view of the level spreader (1" = 20' or larger) showing: C - 5 >q - Underdrain system (if applicable), - Level lip, - Upslope channel, and - Downslope filter fabric. NIA" 4. A date -stamped photograph of the filter strip that clearly shows the type of vegetation that is present. -5 -b3 5. A construction sequence that shows how the level spreader will be protected from sediment until the entire drainage area is stabilized. C -IcS 6. The supporting calculations. %Z(L 7. A copy of the signed and notarized operation and maintenance (0&M) agreement. N14- 8. A copy of the deed restrictions (if required). Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Part III, page 3 of 3 4Pk _ 5 e O°vvAT�o ®fin yDUG NCDENR STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT This form must be completely filled out, printed and submitted. DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEET)! I. PROJECT INFORMATION ' Project name P-1063 MOUT Enhancements Contact name Chns Gamer, P.E. Phone number 804.254.6668 Date March 14, 2009 Drainage area number 3 Receiving Flow From a BMP Type of BMP Drawdown flow from the BMP For Level Spreaders Receiving Flow from the Drainage Area Drainage area Impervious surface area Percent impervious Rational C coefficient Peak flow from the 1 infl r storm Time of concentration Rainfall intensity, 10-yr storm Peak flow from the 10-yr storm Where Does the Level Spreader Discharge? To a grassed bioretention cell? To a mulched bioretention cell? To a wetland? To a filter strip or riparian buffer? Other (specify) Filter Strip or Riparian Buffer Characterization (if applicable) Width of grass Width of dense ground cover Width of wooded vegetation Total width Elevation at downslope base of level lip Elevation at top of bank of the receiving water Slope (from level lip to to top of bank) Are any draws present? Level Spreader Design Forebay surface area Feel of level lip needed per cfs Answer "Y' to one of the following: Length based on the 1 inlhr storm? Length based on the 10-yr storm? Length based on the BMP discharge rate? Design flow Is a bypass device provided? cis 153,767.00 ft2 33,977.00 ft2 22.10 % 0.33 1.16 cfs 23.00 min 4.2 inlhr 4.89 cfs N (Y or N) N (Y or N) N (Y or N) Y (Y or N) Please complete filter strip characterization below. Grassed Surface (this is the bypass from the infiltration basin) 50.00 ft it It 50.00 It 27.60 fmsl 25.00 fmsl 5.20 % OK N (Y or N) OK sq ft 13 fti (Y or N) Y (Y or N) (Y or N) 4.90 cfs N (Y or N) A bypass device is not needed. Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Pans I. and II. Design Summary, page 1 of 3 Length of the level lip Are level §preaders in series? Bypass Channel Design (if applicable) Does the bypass discharge through a wetland? Does the channel enter the stream at an angle? Dimensions of the channel (see diagram below): M B W y Peak velocity in the channel during the 10-yr storm Channel lining material 4PR ? 5 2uJ5 641.00 ft Level spreader length OK. Tv'--- - "_ (YorN) ♦ W I♦._________ y M 4 B 4 (Y or N) Do not complete this section of the worksheel. (Y or N) Do not complete this section of the worksheel. Do not complete this section of the worksheel. ft Do not complete this section of the worksheel. ft Do not complete this section of the worksheel. ft Do not complete this section of the worksheel. ft Do not complete this section of the worksheel. cfS Do not complete this section of the worksheel. Do not complete this section of the worksheel. M Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Parts I. and If Design Summary, page 2 of 3 Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Pagel Plan Initials Sheet No. e C -1 a G 1. Plans (1" - 50' or larger) of the entire site showing: C _ 11 r Design at ultimate build -out, 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. L 2, Plan details (1" = 30' or larger) for the level spreader showing: - Forebay (if applicable), - High Flow bypass system, - One foot topo lines between the level lip and top of stream bank, - Proposed drainage easement, and - Design at ultimate build -out. /�L C-sa3 3. Section view of the level spreader (1" = 20' or larger) showing: - Underdrain system (if applicable), - Level lip, - Upslope channel, and - Downslope filter fabric. NI"_ 4. A date -stamped photograph of the filter strip that clearly shows the type of vegetation that is present. G L4 5. A construction sequence that shows how the level spreader will be protected from sediment until the entire drainage area is stabilized. �L L C Ies 6. The supporting calculations. 7. A copy of the signed and notarized operation and maintenance (08M) agreement. All- 8. A copy of the deed restrictions (if required). Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Part III, page 3 of 3 Permit No. (to be provided by DWQ) State of North Carolina Department of Environment and Natural Resources Division of Water Quality. STORMWATER MANAGEMENT PERMIT APPLICATION FORM LOW DENSITY SUPPLEMENT This form may be photocopied for use as an original A low density project is one that meets the appropriate criteria for built upon area and transports stormwater runoff primarily through vegetated conveyances. Low density projects should not have a discrete stormwater collection system as defined by 15A NCAC 2H .1002(18). Low density requirements and density factors can be found in Session Law 2008-211, 15A NCAC 2H .1000, Session Law 2006-246, and the DWQ BMP Manual. Curb and gutter systems are allowed provided they meet the requirements in 15A NCAC 2H .1008(g). L PROJECT INFORMATION Project Name: Mobile MOUT Expansion Contact Person: Carl Baker, Deputy Public Works Officer Phone Number: ( 910 )451.2213 Number of Lots:I Allowable Built Upon Area (BUA) Per Lot*:5,425,833.6 Number of Dwelling Units Per Acre**: Low Density Development (check one): ® without curb & gutter ❑ with curb & gutter, outlets to (check one): ❑ Swales ❑ Vegetated Area *If lot sizes are not uniform, attach a table indicating the number of lots, lot sizes and allowable built upon area for each lot. The attachment must include the project name, phase, page numbers and provide area subtotals and totals. BUA shall be shown in units of square feet. **(Phase II Post -Construction (non -SA) only) II. BUILT UPON AREA Refer to DWQ's forms and applications website for specific language that must be recorded in the deed restrictions for all subdivided projects. (http://h2o.enr.state. nc. us/su/bmp_forms.him) Complete the following calculation in the space provided below where: • SA Site Area - the total project area above Mean High Water. 7FEB EIVED • DF Density Factor - the appropriate percent built upon area divided by 100. U s 2012 • RA Road Area - the total impervious surface occupied by roadways. • OA Other Area - the total area of impervious surfaces such as clubhouses, tennis courts, sidewalks, etc. • No. of Lots - the total number of lots in the subdivision. • BUA per Lot - the computed allowable built upon area for each lot including driveways and impervious surfaces located between the front lot line and the edge of pavement. • Total allowable lot BUA - the computed allowable built upon area for all lots combined. • Total BUA from lot listing - the sum of built upon area allocated for each lot on the list of non -uniform lots. 4 Form SW401-Low Density-Rev.3-2/10/09 Page 1 of� For uniform lot sizes: (SA: ftz x DF: ) - (RA: ft2) - (OA: ft2) = BUA per Lot = ft2 (No of Lots: ----j For non -uniform lot sizes: a. (SA: 45215280 ft2 x DF: 0.12) - (RA: 0 ftz) - (OA: 0 ft) = Total allowable lot BUA = 5425834 ft2 b. Total BUA from lot listing: 1, 231, 857sf. b must be <_ a III. DESIGN INFORMATION Complete the following table. If additional space is needed the information should be provided in the same format as Table I and attached to this form. Rainfall intensity data can be found in Appendix 8.03 of the State of North Carolina Erosion and Sediment Control Planning and Design Manual or at http://hdsc.nws.noaa.gov/hdsc/pfds/ Table 1. Swale design information based on the 10-year storm. Swale No. Drainage Area (ac) Impervious Area (ac) Grassed Area (ac) C Q (cfs) Slope M V„iiow (Fps) V,c,uai (fps) Flow Depth (ft) 1 1.28 1.28 0 0.5 4.61 1.00 2.0 1.8 0.51 2 0.11 0.11 0 0.5 0.4 1.24 2.0 1.6 0.19 3 0.24 0.24 0 0.5 0.86 1.00 2.0 1.0 0.21 4 0.32 0.32 0 0.5 1.15 1.00 2.0 1.7 0.48 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Form SW401-1,ow Density-Rev.3-2/10/09 Page 2 of 4 IV. REQUIRED ITEMS CHECKLIST The following checklist outlines design requirements per the North Carolina Administrative Code Section 15A NCAC 2H .1000, NCDENR BMP Manual (2007), Session Law 2006-246, and Session Law 2008-21 1. 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 that the following requirements have been met and supporting documentation is provided as necessary. If the applicant has designated an agent on the Stormwater Management Permit Application Form, the agent may initial below. If any item is not met then justification must be attached. Only complete items n through p for projects with curb outlets. Page/Plan Initials Sheet No. N/A a. t For projects in the 20 coastal counties: Per NCAC 2H.1005, a 50 foot wide vegetative buffer is provided adjacent to surface waters. For Redevelopment projects, a 30' wide vegetative buffer adjacent surface waters is provided. — NO 56T__F C GvZIWi P1-eSe177`• N/A b. t For HQW or ORW projects outside the 20 coastal counties: A 30 foot wide vegetative buffer is provided adjacent to surface waters. N/A c. t For Phase II Post -Construction projects: All built upon area is located at least 30 feet landward of all perennial and intermittent surface waters. N/A d. Deed restriction language as required on form SWU-101 shall be recorded as a restrictive covenant. A copy of the recorded document shall be provided to DWQ within 30 days of platting and prior to the sale of any lots. SWP-04 e. Built upon area calculations are provided for the overall project and all lots. N/A f. Project conforms to low density requirements within the ORW AEC. (if applicable per 15A NCAC 2H .1007) Cales g. Side slopes of swales are no steeper than 3:1; or no steeper than 5: L for curb outlet swales. Calcs It. Longitudinal slope of swales is no greater than 5%; for non -curb outlet projects, calculations for shear stress and velocity are provided if slope is greater than 5%. Caels i. At a minimum, swales are designed to carry the 10 year storm velocity at a non -erosive rate. N/A j. Swales discharging to wetlands are designed to flow into and through the wetlands at a non - erosive velocity (for this flow requirement into wetlands, non -erosive is velocity < 2 ft/s). SWP-23 k. Swale detail and permanent vegetation is specified on the plans. 7, SWP-23 1. Swale detail provided on plans; includes grass type(s) for permanent vegetative cover. JG N/A m. Swales are located in recorded drainage easements. N/A n.rt Length of swale or vegetated area is at least 100 feet for each curb outlet. ✓ N/A o." The system takes into account the run-off at ultimate built -out potential from all surfaces draining to the system (delineate drainage area for each swale). ✓ N/A p.tt Curb outlets direct flow to a swale or vegetated area. t Projects in the Neuse, Tar -Pamlico, Catawba River basins, and Randleman Lake may r=BY:- Form SW401-Low Density- Rev.3-2/10/09 Page 3 of� „ . V. SWALE SYSTEM MAINTENANCE REQUIREMENTS I. Mowing will be accomplished as needed according to the season. Grass height will not exceed six inches at any time; and grass will not be mowed too close to the ground or "scalped”. 2. Swales will be inspected monthly or after every runoff producing rainfall event for sediment build-up, erosion, and trash accumulation. 3. Accumulated sediment and trash will be removed as necessary. Swales will be reseeded or sodded following sediment removal. 4. Eroded areas of the swales will be repaired and reseeded. Swales will be revegetated as needed and in a timely manner based on the monthly inspections. Side slopes must be maintained at the permitted slope. 5. Catch basins, curb cuts, velocity reduction devices, and piping will be inspected monthly or after every significant runoff producing rainfall event. Trash and debris will be cleared away from grates, curb cuts, velocity reduction devices and piping. 6. Swales will not be altered, piped, or filled in without approval from NCDENR Division of Water Quality. I acknowledge and agree by my signature below that I am responsible for the performance of the six maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Print Name and Title: C4J H. 0e L.r pg Lt Pulb, Ll,, s ()4(; ei Address: loos /7Jjncl Rd, L/iGff. ,& Z8642 Date: R1112- 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 natned the president. I, //�C� />• '/y/4.� , a Notary Public for the State of NCB"I�W (:>/. 11. z , County of do hereby certify that personally appeared before me this day� Iat- of , ,7a/Z ,and acknowledge the due execution of the forgoing Swale maintenance requirem nts. Witness my hand and official seal, 7 Notary signature AUCE A. BONNETTE Notary Public Onelow County State of North Carolina Commlealon Ex iree� I Form S W401-Low Density-Rev.3-2/ 10/09 My commission expires �(� c/1 RECEIVED 4-If FEB 0 6 2012 Page of BY: NC DEO Division of Energy, Mineral and Land Resources M.1Y 1 ,, STATE STORMWATER: V PERMIT RENEWAL APPLICATION FORM �1'f--�-- 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 110611 2. Project name: Mobile MOUT Training Area Overall Low Density with areas of Higher Density (SA waters) 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? N/A If the project has changed from the original approved plans, please complete SWU-101 for a Major Modification or Minor Modification Application form available at: https:Hdeg.nc.gov/abouUdivisions/energy- m ineral-land-resources/e ne rgy-mineral-land-rules/stormwater-prog 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:Hdeg.nc.gov/abouUdivisions/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 Lejetme 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 EGEJ m ' MAY 11 2021 BY: Stormwater Permit Renewal Form Page 1 of 3 May 11, 2018 C. SUBMITTAL REQUIREMENTS Submit the application package to the appropriate DEMLR Regional Office (Coastal, SA Waters) or DEMLR Central Office (Urbanizing Areas Ph 2, USMP, Non -Coastal HQW/ORW). Only applications packages that include all required items listed below will be accepted and reviewed. Initial each item below to indicate that the required information is provided in the application package: HEB 1. A permit application processing fee of $505.00 payable to NCDEQ. HEB 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. HEB 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. HEB 4. O&M Agreements, Please select one: ® I have a copy of the current recorded O&M Agreement for all SCMs, and I will continue to keep this on file with the permit; or ❑ 1 do not have a copy of the current recorded O&M Agreement for all SCMs and am requesting a copy be sent to me. I agree to keep this on file with the permit. HEB 5. Designer Certifications, Please select one: ® A copy of the certification(s) confirming that the project was built in accordance with the approved plans have been previously provided to the Division; or ❑ A copy of the certification(s) confirming that the project was built in accordance with the approved plans are enclosed; or ❑ The project has not yet been built. 6. [IF APPLICABLE] If the project has been built, one original hard copy and one electronic copy of a signed, sealed, and dated letter from a licensed professional stating that the SCMs have been inspected, and that they have been built and maintained in accordance with the permit. 7. [IF APPLICABLE] When the permittee is a corporation or a limited liability corporation (LLC): Provide one hard copy and one electronic copy of documentation from the NC Secretary of State, or other official documentation, which supports the titles and positions held by the persons listed in Section C.2 per 15A NCAC 2H. 1043(3)(b). MAY 17 2021 �y Stormwater Permit Renewal Application Form Page 2 of 3 May 11, 2018. D. PERMITTEE'SI-CERT FICATIOJJN 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 submil4la proper forms to modify or transfer the permit prior to any changes to the project, SCTcrrefn, ershi All in rmation provided on this permit renewal applicatio is, to the best of my knowledgeom lete. f Signature: Date: J 2 NOTARIZATION: 1 �x1Y� UQ%�� a Notary Public for the State of ice\ 1 County of I A1S(WY do hereby certify that 0 l o V'f JV personally appeared before me this the day of mam 20_a—, and acknowledge the due execution of the forgoing instrument. Witness my hand and official seal, (Notary Seal) �IlVrrll'., ��,....... FiQ" NOT'q Notary Signature: A(J` My commission expires � L027 % �„•., B�IC i MAY 17 2021 Stormwater Permit Renewal Application Form Page 3 of 3 May 11, 2018 tl �`;4 ci�t�`.. �,• � 'r~ � _ �.: � _ �'. . �. � ; .�� l ._ �_ yn '•t: � ���itt SWP-203, SWP-204, SWP-205, SWP-354 i� r ��• � �* 4 � as � F• ` $yj,4yS ,{ g +G t {{ SWP. J} 4" �1 MET w' i � II Irl r 11 I tau y � a4 ?, a. a. IN ev lar Fr INV �A ,;gip, \�t�,,i•••.