Loading...
HomeMy WebLinkAboutSW8100502_HISTORICAL FILE_20121213STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW8 1yU502 DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS © HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE 2w 2_ 12 13 YYYYMMDD NC®ENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Charles Wakild, P. E. Governor Director December 13, 2012 Commanding Officer c/o Neal Paul, Deputy Public Works Director MCB Camp Lejeune Building 1005 Michael Road Camp Lejeune, NC 28542 Subject: State Stormwater Management Permit No. SW8 100502 P-1357 Child Development Center Courthouse Bay High Density Commercial Bioretention and Infiltration Project Onslow County Dear Mr. Paul: Dee Freeman Secretary The Wilmington Regional Office received a complete modified Stormwater Management Permit Application for P-1357 Child Development Center Courthouse Bay on December 5, 2012. Staff review of the plans and specifications has determined that the prot1ect, as proposed, will comply with the Stormwater Regulations set forth in Session Law 2008-211 and Title 15A NCAC 2H.1000. We are forwarding Permit No. SW8 100502 dated December 13, 2012, for the construction of the subject project. On August 5, 2009, the Governor signed Session Law 2009-406. This law impacts any development approval issued by the Division of Water Quality under Article 21 of Chapter 143 of the General Statutes, which is current and valid at any point between January 1, 2008, and December 31, 2010. The law extends the effective period of any stormwater permit that is set to expire during this time frame to three (3) years from its current expiration date. On August 2, 2010, the Governor signed Session Law 2010-177 which grants an extra year for a total of four (4) years extension. Accordingly, this permit, which was set to expire on September 27, 2020, shall be effective from the date of issuance until December 31, 2021, which includes all available extensions. This permit shall be subject to the conditions and limitations as specified therein. Please pay special attention to the Operation and Maintenance requirements in this permit. Failure to establish an adequate system for operation and maintenance of the stormwater management system will result in future compliance problems. The following modifications are included and covered by this permit: 1. The permitted built -upon area (BUA) within drainage area 5 is increasing from 42,000 square feet to 43.086 square feet for the addition of 1,086 square feet of BUA due to road improvements. 2. The previously approved layout and grading plans remain in effect and are incorporated into the current approved plan set. If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicato hearing by filing a written petition with the Office of Administrative Hearings (OAHI. 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. Wilmington Regional Office 127 Cardinal Drive Extension, Wilmington, North Carolina 28405 Phone: 910-796-72151 FAX: 910-350-20041 DENR Assistance: 1-877-623-6748 Internet: w .nmaterquality.org An Pmol Mnnmmlm 1 Aff.—I.m A,IInn Fmnln�io. NorthCarolina Naturally State Stormwater Management. Systems Permit No. SW8 100502 If you have any questions, or need additional information concerning this matter, please contact Christine Nelson at (910) 796-7215. Sincerely, i � i 57. Charles Wakil.E., Director Division of Water Quality GDS/ can: S:\WQS\Stormwater\Permits & Projects\2010\100502 HD\2012 12 permit 100502 cc: Matthew Haley, Cape Fear Engineering, Inc Wilmington Regional Office Stormwater File Page 2 of 9 State Stormwater Management Systems Permit No. SW8 100502 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY STATE STORMWATER MANAGEMENT PERMIT HIGH DENSITY DEVELOPMENT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO Camp Lejeune Marine Corps Base P-1357 Child Development Center Courthouse Bay Intersection of Highway 172 and Marines Road, Camp Lejeune, Onslow County FOR THE construction, operation and maintenance of three (3) bioretention basins, two (2) infiltration basins, permeable pavement, a level spreader and vegetated filter strip system in compliance with the provisions of Session Law 2008-211 and 15A NCAC 2H .1000 (hereafter jointly and severally referred to as the "stormwater rules') and the approved stormwater management plans and specifications and other supporting data as attached and on file with and approved by the Division of Water Quality and considered a part of this permit. This permit shall be effective from the date of issuance until December 31, 2021, 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 1.6 and 1.7 of this permit. The bioretention cell in DA-1, D.�-2 and DA-3 gave been designed to handle the runoff from 22,934 ft , 20,671 ft , and 1,770 ft , of built -upon area respectively. The infiltration Pasins in DA-4 anq DA-5 have been designed to handle the runoff from 60,621 ft , and 43,086 ft of built -upon area, respectively. Infiltration Basin DA-4 is designed to handle the 10 year storm without discharging, per Section 16.3.9 of the 07/23/2009 BMP Manual, therefore a vegetated filter is not required for that basin. A level spreader and vegetated filter are required for the infiltration basin in DA-5. The drainage area limits for each BMP shall not exceed what is shown on the approved drainage area plan and listed in Sections 1.6 and 1.7 of this permit. Each BMP shall treat no more than that amount of built -upon area indicated in Sections 1.2, 1.6 and 1.7 of this permit, and per the application documents and the approved plans. The runoff from all permitted built -upon area within each BMP drainage area shall be directed to the appropriate BMP. Page 3 of 9 State Stormwater Management Systems Permit No. SW8 100502 4. The project shall provide a 50' wide vegetated buffer adjacent surface waters, measured horizontally from and perpendicular to the normal pool of impounded structures, the top of bank of both sides of streams and rivers, and the mean high water line of tidal waters. ,A 7 The bioretention cells in DA-1, DA-2 and DA-3 do not provide sufficient volume to completely handle the 3.67" design storm, therefore, they all overflow into the infiltration basin in DA-4, which has been designed to accommodate the runoff from DA's 1-4, inclusive, less the total volume stored in the bioretention basins. The following design criteria have been met and provided in the 3 bioretention cells and must be maintained at design condition at all times: a. Drainage Area, acres: Onsite, ft Offsite, ftZ: b. Total Impervioul Surfaces, ftZ: Onsite, ft : Offsite, ftZ: C. Design Storm, inches: d. Max. Ponded Depth, feet: e. TSS removal efficiency: f. Seasonal High Water Table, fmsl: g. Media Depth, feet: h. Basin Dimensions, feet: i. Bottom Elevation, fmsl: j. Bottom Surface Area, ftZ: k. Permitted Storage Volume, ft3: I. Temporary Storage Elevation, fmsl M. Drawdown Time, hours: n. Type of cell: o. Is an Underdrain provided? p. Total number of plants provided: DA-1 DA-2 DA-3 0.97 0.8 0.29 42,163 35,408 12,640 0 0 0 22,934 20,671 1,770 22,934 20,671 1,770 0 0 0 3.67 3.67 3.67 0.875 0.875 0.875 85% 85% 85% 29.0 29.0 29.0 3.0 3.0 2.0 104x32 113x32 39x23 36.4 36.4 36.7 205 205 50 2,753 2,968 579 37.4 37.4 37.7 24 24 24 Trees/Shrubs Grass No No No 89 93 n/a The following design criteria have been permitted for the 2 infiltration basins and must be provided and maintained at design condition: a. Drainage Area, acres: Onsite, ft : Offsite, ftZ: b. Total Impervious Surfaces, ftZ: Onsite, ft Offsite, ftZ: C. Design Storm, inches: d. Basin Depth, feet: e. Bottom Elevation, FMSIZ: f. Bottom Surface Area, ft : g. Bypass Weir Elevation, FMSY h. Permitted Storage Volume, ft i. Type of Soil: j. Expected Infiltration Rate, in/hr: k. Seasonal High Water Table, FMSL: I. Time to Draw Down, hours: DA-4 DA-5 4.38 2.17 190,990 94,584 0 0 60,621 43,086 60,621 43,086 0 0 3.67 3.67 2.4 1.5 29.0 34.5 7,620 4,550 31.4 36.0 21,515 7,872 Sand Sand 9.18 2.0 27.0 32.5 3.6 7.3 The Receiving Stream for all BMP's is the New River in the White Oak River Basin, Stream Index Number 19-36, classified as "SA". The project is within''/: mile of SA waters, therefore the design storm is the pre -post 1 year 24 hour. Page 4 of 9 State Stormwater Management Systems Permit No. SW8 100502 II. SCHEDULE OF COMPLIANCE The stormwater management system shall be constructed in its entirety, vegetated and operational for its intended use prior to the construction of any built -upon surface. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 3. The permittee shall at all time provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency. The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited to: a. Semiannual scheduled inspections (every 6 months). b. Sediment removal. C. Mowing and re -vegetation of slopes and the vegetated filter. d. Immediate repair of eroded areas. e. Maintenance of all slopes in accordance with approved plans and specifications. f. Debris removal and unclogging of outlet structure, orifice device, flow spreader, catch basins and piping. a. Access to the outlet structure must be available at all times. 4. Records of maintenance activities must be kept and made available upon request to authorized personnel of DWQ. The records will indicate the date, activity, name of person performing the work and what actions were taken. 5. The facilities shall be constructed as shown on the approved plans. This permit shall become void unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data. 6. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, a certification must be received from an appropriate designer for the system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation. Any deviations from the approved plans and specifications must be noted on the Certification. If the stormwater system BMP is used as an Erosion Control device during construction, more frequent maintenance will be required during construction to maintain functionality. Once the drainage area is stabilized and prior to occupancy of the facility, the BMP must be fully restored to design condition. Access to the stormwater facilities shall be maintained via appropriate recorded easements at all times. All stormwater collection and treatment systems must be located in public rights - of -way, dedicated common areas or recorded easements. The final plats for the project will be recorded showing all such required rights -of -way, common areas and easements, in accordance with the approved plans. Page 5 of 9 State Stormwater Management Systems Permit No. SW8 100502 10. The permittee shall submit to the Director and shall have received approval for revised plans, specifications, and calculations prior to construction, for any modification to the approved plans, including, but not limited to, those listed below: a. Any revision to any item shown on the approved plans, including the stormwater management measures, built -upon area, details, etc. b. Project name change. C. Transfer of ownership. d. Redesign or addition to the approved amount of built -upon area or to the drainage area. e. Further subdivision, acquisition, lease or sale of all or part of the project area. The project area is defined as all property owned by the permittee, for which Sedimentation and Erosion Control Plan approval or a CAMA Major permit was sought. f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. 11. Prior to construction, the permittee shall submit final site layout and grading plans for any future development areas with BUA allocations, as designated on the approved plans. 12. A copy of this permit, the permit application documents, the approved plans and specifications shall be maintained on file by the Permittee for the life of the permit. At the time a permit transfer is approved, the permittee shall forward the approved plans to the proposed new permittee. 13. The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements of the permit. Within the time frame specified in the notice, the permittee shall submit a written time schedule to the Director for modifying the site to meet minimum requirements. The permittee shall provide copies of revised plans and certification in writing to the Director that the changes have been made. III. GENERAL CONDITIONS 1. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems. 2. This permit is not transferable to any person or entity except after notice to and approval by the Director. At least 30 days prior to a change of ownership, or a name change of the permittee or of the project, or a mailing address change, the permittee must submit a completed and signed Name/Ownership Change form to the Division of Water Quality, accompanied by the appropriate documentation as listed on the form. The approval of this request will be considered on its merits and may or may not be approved. 3. The permittee is responsible for compliance with all permit conditions until such time as the Division approves a permit transfer request. Neither the sale of the project in whole or in part nor the conveyance of common area to a third party shall be considered an approved permit transfer request. 4. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to enforcement action by the Division of Water Quality, in accordance with North Carolina General Statute 143-215.6A to 143-215.6C. Page 6 of 9 State Stormwater Management Systems Permit No. SW8 100502 5. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances, which may be imposed by other government agencies (local, state, and federal) having jurisdiction. This includes any local flood control requirements. 6. The permittee grants DENR Staff permission to enter the property during normal business hours for the purpose of inspecting all components of the permitted stormwater management facility. 7. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a permit modification, revocation and re -issuance or termination does not stay any permit condition. 8. Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual. 9. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit to the extent necessary to maintain compliance with stormwater regulations. 10. At least 180 days prior to the expiration date of this permit, the permittee shall submit a permit renewal request to the Division of Water Quality along with the required application feet. Permit issued this the 13th day of December 2012. CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION Division of Water Quality By Authority of the Environmental Management Commission Page 7 of 9 State Stormwater Management Systems Permit No. SW8 100502 P-1357 CDC Courthouse Bay Stormwater Permit No. SW8 100502 Onslow County Designer's Certification I, , as a duly registered in the State of North Carolina, having been authorized to observe (periodically/ weekly/ full time) the construction of the project, (Project Name) for (Project Owner) hereby state that, to the best of my abilities, due care and diligence was used in the observation of the project construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications. The checklist of items on page 2 of this form is included in the Certification. Noted deviations from approved plans and specification: Signature Registration Number Date SEAL Page 8 of 9 State Stormwater Management Systems Permit No. SW8 100502 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, including permeable pavement. 3. All the built -upon area associated with the project is graded such that the runoff drains to the system. 4. All roof drains are located such that the runoff is directed into the system. 5. The outlet/bypass structure elevations are per the approved plan. 6. The outlet/bypass structure is located per the approved plans. 7. Trash rack is provided on the outlet/bypass structure. 8. All slopes are grassed with permanent vegetation, per the vegetation plan. 9. Vegetated slopes are no steeper than 3:1. 10. The inlets are located per the approved plans and do not cause short- circuiting of the system. 11. The permitted amounts of surface area and/or volume have been provided. 12. Required drawdown devices are correctly sized and located per the approved plans. 13. All required design depths are provided. 14. All required parts of the system are properly installed such as plants, a forebay, filter media, level spreader and vegetated filter strip. 15. The required system dimensions are provided per the approved plans. 16. The permitted amount of permeable pavement has been properly installed, per the approved pavement design. cc: NCDENR-DWQ Regional Office Page 9 of 9 1! Date Received i Fee Paid I Permit Number iJ n n n /_� �4 %! %�� 16U////. ff'%%%,%'%VU � Applicable Rules: ❑ Coastal SW -1995 ❑ Coastal SW - 2008 ❑ Ph II - Post Construction (select all that apply) ❑ Non -Coastal SW- HQW/ORW Waters ❑ Universal Stormwater Management Plan ❑ Other WQ Mgmt Plan: State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM This form may be photocopied for use as an original I. GENERAL INFORMATION 1. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): P-1357 Child Develooment Center Courthouse Bav 2. Location of Project (street address) North East corner of intersection of NC HWY 172 and Marines Road MCB Camp Lejeune City:Camp Lejeune County:Onslow Zip:28547 3. Directions to project (from nearest major intersection): NC HWY 172 east from NC 210 to Marines Road 4. Latitude:34° 35' 15" N Longitude:77' 21' 27" W of the main entrance to the project. IL PERMIT INFORMATION: 1. a. Specify whether project is (check one): []New ®Modification ❑ Renewal w/ Modificationt 'Renewals with modifications also requires S W U-102 - Renewal Application Form b.If this application is being submitted as the result of a modification to an existing permit, list the existing permit numberSW8100502 , its issue date (if known)9-27-2010 and the status of construction: ❑Not Started ®Partially Completed* ❑ Completed* *provide a designer's certification 2. Specify the type of project (check one): ❑Low Density ®High Density ❑Drains to an Offsite Stormwater System ❑Other 3. If this application is being submitted as the result of a previously returned application or a letter from DWQ requesting a state stormwater management permit application, list the stormwater project number, if assigned, and the previous name of the project, if different than currently proposed, 4, a. Additional Project Requirements (check applicable blanks; information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748): ❑CAMA Major ❑NPDES Industrial Stormwater ®Sedimentation/Erosion Control: 9.65 ac of Disturbed Area ❑404/401 Permit: Proposed Impacts b.If any of these permits have already been acquired please provide the Project Name, Project/Permit Number, issue date and the type of each permit: 5. Is the project located within 5 miles of a public airport? ®No ❑Yes If yes, see S.L. 2012-200, Part VI: http://12ortal.ncdenr.org/web/wq/ws/su/statesw/ruies laws IF-CEIVEls Form SWU-101 Version 06Aug2012 Page I of 6 DEC 0 t 2012 BY: Al. CONTACT INFORMATION 1. a. Print Applicant / Signing Official's name and title (specifically the developer, property owner, lessee, designated government official, individual, etc. who owns the orciect): Applicant/Organization:Commanding Officer, Marine Corps Base, Camp Lejeune Signing Official & Title:Mr. Neal Paul, Deputy Public Works Director b.Contact information for person listed in item la above: Street Address:1005 Michael Road City:MCB Camp Leeune State:NC Zip:28542 Mailing Address (if applicable):1005 Michael Road City:MCB Camp Lejeune State:NC Zip:28542 Phone: (910 ) 451-2213 Email:neal.paul@ismc.mil Fax: (910 ) 451-2927 c. Please check the appropriate box. The applicant listed above is: ® The property owner (Skip to Contact Information, item 3a) ❑ Lessee* (Attach a copy of the lease agreement and complete Contact Information, item 2a and 2b below) ❑ Purchaser* (Attach a copy of the pending sales agreement and complete Contact Information, item 2a and 2b below) ❑ Developer* (Complete Contact Information, item 2a and 2b below.) 2. a. Print Property Owner's name and title below, if you are the lessee, purchaser or developer. (This is the person who owns the property that the project is located on): Property Owner/ Signing Official & b.Contact information for person listed in item 2a above: Street Address: City: State: Zip: Mailing Address (if applicable): City:_ Phone: Email: Fax: 3. a. (Optional) Print the name and title of another contact such as the project's construction supervisor or other person who can answer questions about the project: Other Contact Person/Organization: Signing Official & Title: b.Contact information for person listed in item 3a above: Mailing Address: City: State: Zip: Phone: ( ) Fax: ( ) "Q=n W=-1Vr=n DEC 0 15 2012 Form SWU-101 Version 06Aug2012 Page 2 of 7 4. Local jurisdiction for building permits: N/A -Federal Land Point of Contact: Phone #: ( ) IV. PROJECT INFORMATION 1. In the space provided below, briefly summarize how the stormwater runoff will be treated. Stormwater management will be provided by multiple BMPs including bioretention, rain harvesting, and infiltration. Drainage Areas 1-4 ultimately drain to the large infiltration BMP, which will be used for quality control. This BMP discharges to an existing ditch. All of the new impervious area will drain to the BMPs. A smaller infiltration basin will be used for quality and quantity volumes in Drainage Area 5 with the road widenin 2. a. If claiming vested rights, identify the supporting documents provided and the date they were approved: ❑ Approval of a Site Specific Development Plan or PUDApproval Date: ❑ Valid Building Permit Issued Date: ❑ Other: Date: b.If claiming vested rights, identify the regulation(s) the project has been designed in accordance with: ❑ Coastal SW -1995 ❑ Ph II - Post Construction 3. Stormwater runoff from this project drains to the White Oak River basin. 4. Total Property Area: 8.62 acres 5. Total Coastal Wetlands Area: 0 acres 6. Total Surface Water Area: 0 acres 7. Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project Area': 8.62 acres Total project area shall be calculated to exclude the following: the normal pool of imppounded structures, the area between the banks of streams and rivers, the area below the Normal High Water (NHW) line or Mean High Water (MHW) line, and coastal wetlands landward from the NHW (or MHW) line. The resultant project area is used to calculate overall percent built upon area (BUA). Non -coastal wetlands landward of the NHW (or MHW) line may be included in the total project area. 8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 40 % 9. How many drainage areas does the project have?1 (For high density, count I for each proposed engineered stormwater BMP. For low density and other projects, use I for the whole property area) 10. Complete the following information for each drainage area identified in Project Information item 9. If there are more than four drainage areas in the project, attach an additional sheet with the information for each area provided in the same format as below. CCEIVE DEC 0 5 2012 Form SWU-101 Version 06Aug2012 Page 3 of 7 Basin Information, Drainage Area _" Drainage Area _ Drainage Area _1 Drainage Area Receiving Stream Name See Attached Stream Class * Stream Index Number Total Drainage Area (sf) On -site Drainage Area (sf) Off -site Drainage Area (sf) Proposed Impervious Area** (sf) % Impervious Area" (total) Irii' ervious*. Surface, Area ..: 'Drama"e Area _'. tDiairia 'e Area _ Draiiia d Area _ Drama a Area On -site Buildings/Lots (sf) On -site Streets (sf) On -site Parking (sf) On -site Sidewalks (sf) Other on -site (sf) Future (sf) Off -site (sf) Existing BUA*** (sf) Total (sf): Stream Class and Index Number can be determined at: http//vortal nedenr.org/web/wq/ps/csu/classii6cations Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas, sidewalks, gravel areas, etc. Report only that amount of existing BUA that will remain after development. Do not report any existing BUA that is to be removed and which will be replaced by new BUA. 11. How was the off -site impervious area listed above determined? Provide documentation. n/a Projects in Union County: Contact DWQ Central Office staff to check if the project is located within a Threatened & Endangered Species watershed that may be subject to more stringent stormwater requirements as per 15A NCAC 02B .0600. V. SUPPLEMENT AND O&M FORMS The applicable state stormwater management permit supplement and operation and maintenance (O&M) forms must be submitted for each BMP specified for this project. The latest versions of the forms can be downloaded from http://12ortal.ncdenr.org/web/wq/ws/su/bml2-manual. VI. SUBMITTAL REQUIREMENTS Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ). A complete package includes all of the items listed below. A detailed application instruction sheet and BMP checklists are available from http://12ortal.ncdenr.org/web/wq/ws/`su/`statesw/forms dots. The complete application package should be submitted to the appropriate DWQ Office. (The appropriate office may be found by locating project on the interactive online map at ham://portal.ncdenr.org/web/wq/ws/su/coals.) Please indicate that the following required information have been provided by initialing in the space provided for each item. All original documents MUST be signed and initialed in blue ink. Download the latest versions for each submitted application package from ht_pl ://portal.ncdenr.org/web/wq/ws/su/statesw/forms does. Initials 1. Original and one copy of the Stormwater Management Permit Application Form. ItT 2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants w J_ Form. (if required as per Part VII below) 3. Original of the applicable Supplement Form(s) (sealed, signed and dated) and O&M�� agreement(s) for each BMP. 4. Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer to A/'IAA- http://www.envhelp.org/12ages/onestol2express.html for information on the Express program and the associated fees. Contact the appropriate regional office Express Permit (pef��� qte additional information and to schedule the required application meeting.) (� �i!/ E Form SWU-101 Version 06Aug2012 Page 4 of 7 DEC C 52012 Basin Information Drainage Area 1 Drainage Area 2 Drainage Area 3 Drainage Area 4 Drainage Area 5 Receiving Stream Name New River New River New River New River New River Stream Class SA;HQW SA;HQW SA;HQW SA;HQW SA;HQW Stream Index Number 19-36 19-36 19-36 19-36 19-36 Total Drainage Area (sf) 42,163 35,408 12,640 190,990 94,584 On -site Drainage Area (sf) 42,613 35,408 12,640 190,990 94,584 Off -site Drainage Area (sf) 0 0 0 0 0 Proposed Impervious Area (sf) 22,934 20,671 1,770 60,621 43,086 %Impervious Area (total) 54% 58% 14% 32%4°6 45,55' Impervious Surface Area Drainage Area 1 Drainage Area 2 Drainage Area 3 Drainage Area 4 Drainage Area 5 On -site Buildings/Lots (sf) 0 0 0 33,400 0 On -site Streets (sf) 0 0 0 15,430 14,061 On -site Parking (sf) 11,720 13,711 1,591 0 0 On -site Sidewalks (sf) 3,270 2,065 179 7,789 0 Other on -site (sf) 7,944 4,895 0 4,002 0 Future (sf) 0 0 0 0 0 Off -site (sf) 0 0 0 0 0 Existing BUA (sf) 0 0 0 0 29,025 Total (sf):1 22,934 20,671 1,770 60,621 43,086 .5. A detailed narrative (one to two pages) describing the stormwater treatment/management for pA the project. This is required in addition to the brief summary provided in the Project Information, item 1. 6. A USGS map identifying the site location. If the receiving stream is reported as class SA or the MIA receiving stream drains to class SA waters within 1/2 mile of the site boundary, include the'k mile radius on the map. 7. Sealed, signed and dated calculations (one copy). WA 8. Two sets of plans folded to 8.5" x 14" (sealed, signed, & dated), including: M4ik a. Development/Project name. b. Engineer and firm. c. Location map with named streets and NCSR numbers. d. Legend. e. North arrow. f. Scale. g. Revision number and dates. h. Identify all surface waters on the plans by delineating the normal pool elevation of impounded structures, the banks of streams and rivers, the MHW or NHW line of tidal waters, and any coastal wetlands landward of the MHW or NHW lines. • Delineate the vegetated buffer landward from the normal pool elevation of impounded structures, the banks of streams or rivers, and the MHW (or NHW) of tidal waters. i. Dimensioned property/project boundary with bearings & distances. j. Site Layout with all BUA identified and dimensioned. k. Existing contours, proposed contours, spot elevations, finished floor elevations. 1. Details of roads, drainage features, collection systems, and stormwater control measures. m. Wetlands delineated, or a note on the plans that none exist. (Must be delineated by a qualified person. Provide documentation of qualifications and identify the person who made the determination on the plans. n. Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations. o. Drainage areas delineated (included in the main set of plans, not as a separate document). p. Vegetated buffers (where required). 9. Copy of any applicable soils report with the associated SHWT elevations (Please identify NIA elevations in addition to depths) as well as a map of the boring locations with the existing elevations and boring logs. Include an 8.5"xll" copy of the NRCS County Soils map with the project area clearly delineated. For projects with infiltration BMPs, the report should also include the soil type, expected infiltration rate, and the method of determining the infiltration rate. (Infiltration Devices submitted to WiRO: Schedule a site visit for D WQ to verify the SHWT prior to submittal, (910) 796-7378.) NWI 4A T A copy of the most current property deed. Deed book: Page No: For corporations and limited liability corporations (LLC): Provide documentation from the NC Secretary of State or other official documentation, which supports the titles and positions held by the persons listed in Contact Information, item la, 2a, and/or 3a per 15A NCAC 2H.1003(e). The corporation or LLC must be listed as an active corporation in good standing with the NC Secretary of State, otherwise the application will be returned. http://www.secretary.state.nc.us/Corporations/CSearch.aspx VII. DEED RESTRICTIONS AND PROTECTIVE COVENANTS For all subdivisions, outparcels, and future development, the appropriate property restrictions and protective covenants are required to be recorded prior to the sale of any lot. If lot sizes vary significantly or the proposed BUA allocations vary, a table listing each lot number, lot size, and the allowable built -upon area must be provided as an attachment to the completed and notarized deed restriction form. The appropriate deed restrictions and protective covenants forms can be downloaded from httu•//portal.ncdenr.org/ web/ wq I ws /so / statesw /forms docs. Download the latest versions for each submittal. In the instances where the applicant is different than the property owner, it is the responsibility of the property owner to sign the deed restrictions and protective covenants form while the applicant is responsible for ensuring that the deed restrictions are recorded. By the notarized signature(s) below, the permit holder(s) certify that the recorded property restrictions and protective covenants for this project, if required, shall include all the items required in the permit and listed on the forms available on the website, that the covenants will be binding on all parties and persons claiming under them, that they will run with the land, that the required covenants cannot be changed or deleted without concurrence from the NC DWQ, and that they will be recorded prior to the sal 'r U VE DEC 0 � 2012 Form SWU-101 Version 06Aug20I2 Page 5 of 7 VIII. CONSULTANT INFORMATION AND AUTHORIZATION Applicant: Complete this section if you wish to designate authority to another individual and/or firm (such as a consulting engineer and/or firm) so that they may provide information on your behalf for this project (such as addressing requests for additional information). Consulting Engineer:Matthew Haley PE Consulting Firm: Caoe Fear Engineering, Inc Mailing Address:151 Poole Road Suite 100 City:Belville Phone: (910 ) 383-1044 Email:matt.haley@cal2efearen6neering.com State:NC Zip:28451 Fax: (910 ) 383-1045 IX. PROPERTY OWNER AUTHORIZATION (if Contact Information, item 2 has been filled out, complete this section) I, (print or type name of person listed in Contact Information, item 2a) certify that I own the property identified in this permit application, and thus give permission to (print or type name of person listed in Contact Information, item 1a) with (print or type name of organization listed in Contact Information, item 1a) to develop the project as currently proposed. A copy of the lease agreement or pending property sales contract has been provided with the submittal, which indicates the party responsible for the operation and maintenance of the stormwater system. As the legal property owner I acknowledge, understand, and agree by my signature below, that if my designated agent (entity listed in Contact Information, item 1) dissolves their company and/or cancels or defaults on their lease agreement, or pending sale, responsibility for compliance with the DWQ Stormwater permit reverts back to me, the property owner. As the property owner, it is my responsibility to notify DWQ immediately and submit a completed Name/Ownership Change Form within 30 days; otherwise I will be operating a stormwater treatment facility without a valid permit. I understand that the operation of a stormwater treatment facility without a valid permit is a violation of NC General Statue 143-215.1 and may result in appropriate enforcement action including the assessment of civil penalties of up to $25,000 per day, pursuant to NCGS 143-215.6. a Notary Public for the State of County of do hereby certify that before me this _ day of stormwater permit. Witness my hand and official seal, SEAL personally appeared and acknowledge the due execution of the application for a My commission expires F-CEIVtom, t. DEC 0 ' 2012 Form SWU-101 Version 06Aug2012 Page 6 of 7 X. APPLICANT'S CERTIFICATION I, (print or type name of person listed in Contact Information, item 1 a) Neal Paul certify that the information included on this permit application form is, to the best of my knowledge, correct and that the project will be constructed in conformance with the approved plans, that the required deed restrictions and protective covenants will be recorded, and that the proposed project complies with the requirements of the applicable sto ater rules nd 5A CAC 2H .1000 and any other applicable state stnormwaat�e/r�requirements. Signature.• ^ I {D�atte: / i-P WyV� I, a{o�t�ajry Public for the State of 1V 1 V I �(�l �'Co^ mty of dohereby certi thatl"��— \GU� personally appeared before me this w day of w, and ack wledge the due execcition la,pticafion for a stormwater permit. Witness my hand and official seal`din =,OF ER'fdl:: LINA SEAL My commission expires i DEC 0A 2012 4 Form SWU-101 Version 06Aug2012 Page 7 of 7 MEMORY TRANSMISSION REPORT FILE NO. 858 DATE 12.14 09:13 TO R 93831045 DOCUMENT PAGES 10 START TIME 12.14 09:15 END TIME 12.14 09:19 PAGES SENT 10 STATUS OK *** SUCCESSFUL TX NOTICE TIME :12-14-'12 09:19 FAX NO.1 :910-350-2004 NAME :DENR Wilmington *** $lv[o of No['[6 Cv rollvv Uupar[muv[ of Bevlrovm vv[ avd Nuturvl Ruroorcea WI[mivgtov Ru�lov vl OMca Aaverly Ee..e.[ nMue. Govery or FAX COVICR SIIL^ET Dcv F e[wuw. Scc ro[v ry To: //��'TT�//E% � H/f�G�)✓ Fro[n: to C.�.v,or Phone: 191 O] 796-93 - 1� z 3'1 Cvain sl �rivc Ez[cn sionWIIm Ina[on. NC 2tl 4(IS � (910)-196-"1213 e M F9na1 On Msamiry APfSrm asi ve ACUnn Fmi.loycc State of North Carolina Department of Environment and Natural Resources Wilmington Regional Office Beverly Eaves Perdue, Governor FAX COVER SHEET Dee Freeman, Secretary Date: ... �Z �7� No. Pages (excl. cover): To:1117 �TT�/E� From: Jo Casmer Phone: (910) 796-7336__ ._ Fax: /l`� -/ Fax: (910) 350-2004 _p Re: Zzf. / (_ /// GC/ D -11�ze e /w Xrfiods ME 127 Cardinal Drive Extension, Wilmington, NC 28405 o (910) 796-7215 o An Equal Opportunity Affirmative Action Employer MEMORY TRANSMISSION REPORT r FILE NO. DATE TO DOCUMENT PAGES START TIME END TIME PAGES SENT STATUS TIME :12-14-'12 09:15 FAX NOA :910-350-2004 NAME :DENR Wilmington 857 12.14 09:12 R 919104512927 10 12.14 09:12 12.14 09:15 10 OK *** SUCCESSFUL TX NOTICE *** Stare of North CaroDao pvPerrmeot of Bovlronmeot and Natural Rarou rcae Wlrm {ugton RaIIMnal OMea »a.•er(y Sowa PrMvr, Governor FwX CfJV ER RtiEF_T Dr(Frrelaaw, Sacratary No. Pages (axcl. count): �_ From: Jo Cacm Phone: (0101 ]96-]3'r6 Faz (910135 D-2009 ell l2' C—d—1 �rivc EF[cvio n, Wil m in Qfon. NC 28903 a (910) 996-12 e M Equal 0ppe—.1, A4flrma1.— 1.,— Cm ', State of North Carolina Department of Environment and Natural Resources Wilmington Regional Office Beverly Eaves Perdue, Governor FAX COVER SHEET Dee Freeman, Secretary Date: _.- �'�4 No. Pages (excl. cover): To: dE9� , , UL ��� XI"e'I' G��� �S From: Jo Casmer ��.�o L�� ��,�� Co: Phone: (910)796-7336 _.._ Fax: % ' ' a 9� 1-7 Fax:: (910) 350-2004 _ 127 Cardinal Drive Extension, Wilmington, NC 28405 o (910) 796-7215 c An Equal Opportunity Affirmative Action Employer CAPE FEAR Engineering, Inc. 151 Poole Roetl, Suite 100 Relville, NG 28451 TEL (010) 383-1044 FAX (910)383-1045 www.capefearengineering.com To: NC DWQ Surface Water Protection State Stormwater Section 127 Cardinal Drive Ext. Wilmington, INC 28405 Attn: Christine Nelson REM 0 � C 8 4 2012 Transmittal P. K - Date: December 3, 2012 File: 558-157 "36" Subject: P-1253 Intersection Improvements EXPRESS Modification P-1357 Child Development Center Courthouse Bay (SW8 100502) ❑ As Requested ❑ For Your Files ❑ For Distribution ® For your Review / Action / Approval ❑ Sent via Mail ❑ Sent via Courier Quantity Drawing No. Description 1 Original Application Fee ( %-`A %MGwt7FS SW & 02100-1 MOP_) 2 Original & Copy Stormwater Management Application 2 Copy Revised Infiltration Supplement for Drainage Area #5 1 Copy Stormwater Narrative & Revised Calculation Pages for Drainage Area #5 2 Copy Stormwater Permit Exhibit 2 Copy Complete P-1253 Intersection Improvement Plans F1�FRT1� REMARKS Please find the attached documents related to the modification of the previously approved NCDENR State Stormwater Permit for the P-1357 Child Development Center Courthouse Bay. The permit is being modified to include additional improvements to be installed as part of the P-1253 Intersection project. Please let me know if you have any questions or need any additional information. Thanks. CC: File 558-157 "36" Cape�Fear Engineering, Inc. Signed:i'/1� Matthew Haley, P. . Received IV� 1., DEC 0162012 tr KyG:_ a- P:\558\558-157P1253 ENGINEERING\ADMIMSTORMWATER\INTERSECTIOMCDC MODIFICATIOM2012-1203 Trans NCDENR_CDC MOD>�IC-41 ji, Stormwater Narrative and Calculations Modification to P-1357 Child Development Center Courthouse Bay (SW8 100502) to accommodate: P-1253: Intersection Improvements Camp Lejeune, North Carolina Prepared for Marine Corps Base Camp Lejeune Public Works Division Date: November 19, 2012 Prepared by Cape Fear Engineering, Inc. 151 Poole Road, Suite 100 Belville, NC 28451 (910)383-1044 NC License No. C-1621 T. DEC 0 �2012 DESIGN NARRATIVE L GENERAL: On behalf of NAVFAC and the Marine Corps Base Camp Lejeune (MCBCL) — Public Works Division, Cape Fear Engineering is submitting a stormwater permit modification to the existing P-1357 Child Development Center Courthouse Bay (SW8 100502) to accommodate additional intersection improvements as part of the P-1253 Project. The project site is located at the intersection of Hwy 172 & DA Munro Road in the Courthouse Bay area of Marine Corps Base Camp Lejeune (MCBCL). The offsite roadway improvements will consist of road widening to add additional turning lanes and signalization at the intersections. Of these improvements, approximately 1,086 sf of additional impervious is being added to previously approved Drainage Area #5. This modification does not affect any other previously permitted drainage areas. 2. EXISTING SITE AND DEMOLITION: There are no jurisdictional wetlands located within the proposed project limits. There are no known contaminated areas located within the proposed project limits. For Drainage Area #5, existing drainage patterns onsite consist of overland sheet flow from the existing pavement to a shallow roadside drainage swale. The roadside swale conveys runoff to a small infiltration basin for treatment. The project site is part of the White Oak river basin and drains to Courthouse Bay (19-36 SA;HQW). Slopes onsite are generally mild and range from 0 to 3%. There are some areas near the existing drainage features with steeper slopes. 3. PROPOSED IMPROVEMENTS: Offsite road improvements are included to facilitate the anticipated increase in vehicular traffic as a result of the P-1253 CEB Complex construction and other ongoing projects in the area. The offsite roadway improvements are located at the intersection of Sneads Ferry Road and Marines Road and at the intersection of Sneads Ferry Road and DA Munro Road. At the intersection of Sneads Ferry and DA Munro Road, a 240-ft left turn lane will be added on westbound Sneads Ferry onto DA Munro. The existing right turn lane on westbound Sneads Ferry will be extended to 140-ft, and a 100-ft right turn lane will be added to DA Munro. A new traffic signal will be installed which will be synchronized with the existing traffic light at the intersection of Sneads Ferry and Marines Road. 4. DRAINAGE CONSIDERATIONS: The proposed project does not alter the existing drainage patterns onsite. Proposed grading will generally consist of cuts and fills of approximately I-ft. There is sufficient capacity in the previously permitted infiltration basin to accommodate the additional impervious area. This permit modification does not make any changes to the existing infiltration basin. 5. EROSION CONTROL CONSIDERATIONS: Best Management Practices (BMP's), designed in accordance with the North Carolina Erosion and Sediment Control Planning and Design Manual, will be utilized to prevent sediment migration and transport from the site. Temporary measures will primarily consist of wattle sediment barriers in the roadside swales. Additional temporary measures will consist of rip -rap inlet/outlet protection and temporary seeding. These temporary measures will be located within the project limits to contain sediment runoff expected from construction operations. Revised Calculations for Drainage Area #5 Infiltration Basin (Original Calculations by C. Allan Bamforth Jr Engineer -Surveyor LTD) 1 � R�-Vlslor�l5 g`j C APE FEAR Engineering, Inc.) CDC COURTHOUSE BAY Volume = (Design Rainfall) x (Rv) x (Drainage Area) Volume = (6.89 in rainfall)/(12 in) x (0.39 in/in) x (281201 sq-ft) = 62,968 cu-ft Total Volume Required to be Infiltrated = volume - volume in bioretention basins = 62,968 — 6,300 = 56,668 cu-ft Infiltration Rate = 9.18/2 = 4.59 in/hr Total Volume Infiltrated in 24-Hours = (4.59 in/hr x 7625 sf x 24 hr x 1 ft/12 in) = 69,998 cf 69,998 > 56,668, no bypass required Small Infiltration BMP (Drainage Area 5): Predevelopment: Total Area— 2.17 acres Impervious — 0.67 acres C = 0.95 Grass = 1.50 acres C = 0.30 I-Yr, 24-Hour Storm Pre — 1.07 cfs Time of Concentration Kirpich Chart for Overland Flow: L = 660 ft Height = (38.7 — 36.5) = 2.2' T, = 11 x 2 = 22 minutes Total Tc = 22 minutes Rainfall Intensity - Wilmington I-D-F Curve, 10-Year Storm, 22 minutes I =4.3 in/hr Allowable Discharge Q (I0-Year)= CAI = [(0.30 x 1.50) + (0.95 x 0.67)] x 4.3 = 4.67 cfs Page 9 �� '�1l�,lc�s\►s F� � e / CAPE FEAR � Engineering, Inc. Postdevelopment: Total Area — 2.17 acres Impervious — 0.`i acres C = 0.95 Grass acres C = 0.30 1-Yr, 24-Hour Storm Post — 2.06 cfs Time of Concentration CDC COURTHOUSE BAY Seelye's Chart for Overland Flow: L = 10 ft Slope = (39.7 — 39.6)/10 = 1 % T, = 5 minutes Kirpich Chart for Ditch Flow: L = 580 ft Height = (39.6 — 38.0) = 1.6' T� = 10 minutes Total T, = 15 minutes Temporary Water Quality Volume Required Use "Simple Method" by Schueler to Determine Runoff Volume for 1.5-inches: Site Area = 94,584 sf'� Impervious Runoff Coefficient = Rv = 0.05 + 0.009(I) I = Percent Impervious=-4-:h*94584 RV = 0.05 + 0.009*-'.) =0.44o in/in Volume = (Design Rainfall) x (Rv) x (Drainage Area) Volume = (1.5 in rainfall)/(12 in) x (0,"in/in) x (94584 sq-ft) 5,4 3i by Schueler to Determine Runoff Vo nine for 1-year, 24-1 Use "Simple Method" Predevelopment: Site Area = 94,584 sf Impervious = 29,025 sf Page 10 Storm: CDC COURTHOUSE BAY CAPE FEAR Engineering, Inc. 1 Runoff Coefficient = Rv = 0.05 + 0.009(I) I = Percent Impervious = 29025/94584 = 31 % Rv = 0.05 + 0.009(31) = 0.33 in/in Volume = (Design Rainfall) x (Rv) x (Drainage Area) Volume = (3.67 in rainfall)/(12 in) x (0.33 in/in) x (94584 sq-ft) = 9546 cu-ft Postdevelopment: Site Area = 94,584 sf Impervious =43pac sf Runoff Coefficient = Rv = 0.05 + 0.009(I) I = Percent Impervious=43,crjtd94584 = 45 5r27- Rv = 0.05 + 0.009�46-b oAcain/in Volume = (Design Rainfall) x (Rv) x (Drainage Area) Volume = (3.67 in rainfall)/(12 in) x (e-4(oinhn) x (94584 sq-ft) =13 ,�06cu-ft Total Volume = 13,3o(c- 9546 = 9100 cu-ft Use5,4flcu-ft, which is greater than3lCOcu-ft Total Volume Provided in Infiltration BMP for Quality=1,6'1&u-ft OAK Drawdown Time Time = Water Quality Volume/2 x Infiltration Rate x Area 1plv'r11 iul 1Qr� Time=`1,Srl?,cf/2 x 1 inch/hour x 1/12 x 4550 sf = lo. 4- 4'�7'R 241c� Page 11 CALCULATIONS [TA] PROJECT: {�` {�S j Ct{ f l �i L7E�(LQ{��LE� 7(" L,yg"FT� DATE: .,LIENT: PROD. NO.: SUBJECT: SMA _. IAfS`- L:re*rk0z4 VVAI? 1 "Mk G DESIGNED BY: I I I I _ 1_ _cWT'u.c? { I i i I " I ; i 151 Poole Road, Suite 100 Belville, NC 25451 TEL (910) 353-1044 FAX: (910) 383-1045 www.capefearengineering.com z I i i 1 I i i i i � i i • 4FCAPE FEAR Engineering, Inc. CALCULATIONS �9 PROJECT: DATE:l- .LIENT: \ PROJ. NO.: SUBJECT: °^>?\'1Aia,, &AP (ti i ,AA61EFAf c DESIGNED BY: ! 1 _ -� J. FE-A J__ -1 t 7 - G Y _IMP. ,c -- GAsS M25AN—jc 1 - -- _y i F1?M�c�ya4Fa!als, plAl'r.SUpptM'r_ - ! ! J -, -- - kA , - = i I ! r -I ! l j iSIiSC'✓ "ra-4� InlU2�icSEiIN!.�_C-i''�10�,0 IS t'iE(�Ca\ 'r-A --ta, V FS LT _511 SlIpP ' ' Dior; -.► 'PRov,;.lr���, � � � � � � ! ,. , i 151 Poole Road, Suite 100 Belville, NC 25451 TEL: (910) 383-1044 FAX (910) 353-1045 www.capefearengineering.com CAPE FEAR tiEngineering, Inc. n0G �0U50Z Fw DENR UsseeONLY ONLY S♦M1`ft 'Reviewer 4 ANorth Carolina Department of Environment and o Natural Resources Submit: 12-3 NCDENR Request for Express Permit Review Time: V iQ . confirm: FILL-IN all the information below and CHECK the Permit(s) you are requesting for express review. Call and Email the completed form to the Permit Coordinator along with a completed DETAILED narrative, site plan (PDF file) and vicinity map (same items expected in the application ap ckage of the project location. Please include this form in the application package. • Asheville Region -Alison Davidson 828-296.4698;alison.davidson(rDncdenr.gov • Fayetteville or Raleigh Region -David Lee 919-791.4203; david.lee(cbmcdenr.gov • Mooresville & Winston Salem Region - Patrick Grogan 704-235.2107 or patrick.grogan(dncdenr.gov • Washington Region -Lyn Hardison 252-948-3842 or Ivn.hardison(rDncdenr.gov • Wilmington Region -Janet Russell910-796.7302 or ianet.russell(rDncdenr.gov • Wilmington Region -Cameron Weaver 910-796.7303 or cameron.weaverOncdenr.gov Permits of Request SW _ SW _ SW _ SW _ SW NOTE: Project application received after 12 noon will be stamped in the following work day. I Project Name: P-1357 CHILD DEVELOPMENT CENTER COURTHOUSE BAY County: ONSLOW Applicant: COMMANDING OFFICER, MARINE CORPS BASE CAMP LEJEUNE Company: Address: 1005 MICHAEL ROAD City: MCB CAMP LEJEUNE, State: NC Zip: 28547-_ 2 1 A- fA Phone: 9104151-2213, Fax: 910-451-2927. Email: CARL.H.BAKER@USMC.MIL Physical Location:NORTHEAST CORNER OF NC HWY 172INTERSECTION AND MARINES ROAD Project Drains into COURTHOUSE BAY waters -Water classification SA -HQ (for classification see- 30 hfto://h2o.enr.state.nc.us/bims/reports/reportsWB.htmi Project Located in WHITE OAK River Basin. Is project draining to class ORW waters? N. within Y2 mile and draining to class SA waters Y or within 1 mile and draining to class HOW waters? Y Engineer/Consultant: MATTHEW HALEY, PE Company: CAPE FEAR ENGINEERING, INC C. "`1V RD Address: 151 POOLE ROAD, SUITE 100 City: BELVILLE, State: NC Zip: 28451-_ Phone:910-383-1044, Fax:910-383-1045, Email: MATT.HALEY@CAPEFEARENGINEERING.COM NOV 1 9 2012 SECTION ONE: REQUESTING A SCOPING MEETING ONLY ❑ Scoping Meeting ONLY ❑ DWQ, ❑ DCM, ❑ DLR, ❑ OTHER: SECTION TWO: CHECK ONLY THE PROGRAM (S) YOU ARE REQUESTING FOR EXPRESS PERMITTING ❑ 401 Unit ❑ Stream Origin Determination: _ # of stream calls — Please attach TOPO map marking the areas in questions ❑ Intermittent/Perennial Determination: _ # of stream calls — Please attach TOPO map marking the areas in questions ❑ 401 Water Quality Certification ❑ Isolated Wetland (_linear ft or _acres) El Riparian Buffer Authorization El Minor Variance ❑ Major General Variance ® State Stormwater ❑ General ❑ SFR, ❑ SFR < 1 ac. ❑ Bkhd & Bt Rmp, ❑ Clear & Grub, ❑ Utility ❑ Other ❑ Low Density ❑ Low Density -Curb & Gutter _ # Curb Outlet Swales ❑ Off -site [SW _ (Provide permit #)] ❑ High Density -Detention Pond _ # Treatment Systems ® High Density -Infiltration 1 #Treatment Systems ❑ High Density -Bio-Retention _ # Treatment Systems ❑ High Density —SW Wetlands _ # Treatment Systems ❑ High Density -Other _ # Treatment Systems / ® MOD:❑Major ❑ Minor ❑ Plan Revision ❑ Redev. Exclusion SW 8100502 (Provide permit #) ❑ Coastal Management ❑ Excavation & Fill ❑ Bridges & Culverts ❑ Structures Information ❑ Upland Development ❑ Marina Development ❑ Urban Waterfront ❑ Land Quality ❑ Erosion and Sedimentation Control Plan with _ acres to be disturbed.(CK # (for DENR use)) SECTION THREE — PLEASE CHECK ALL THAT IS APPLICABLE TO YOUR PROJECT (for both scopinu and express meeting request) Wetlands on Site ❑ Yes ® No Buffer Impacts: ® No ❑ YES: _acre(s) Wetlands Delineation has been completed: ® Yes ❑ No Isolated wetland on Property ❑ Yes ® No US ACOE Approval of Delineation completed: ® Yes ❑ No 404 Application in Process w/ US ACOE: ❑ Yes ® No Permit Received from US ACOE ® Yes ❑ No For DENR use only Fee Split for multiple permits: (Check# 1 lofal Fee Amount SUBMITTALDATES Fee SUBMITTAL DATES Fee CAMA $ Variance (❑ Maj; ❑ Min) $ SW (❑ HD, ❑ LD, ❑ Gen) $ 401: $ LQS $ Stream Deter,_ $ NCDENR EXPRESS June 2011 DESIGN NARRATIVE L GENERAL: On behalf of NAVFAC and the Marine Corps Base Camp Lejeune (MCBCL) — Public Works Division, Cape Fear Engineering is submitting a stormwater permit modification to the existing P-1357 Child Development Center Courthouse Bay (SW8 100502) to accommodate additional intersection improvements as part of the P-1253 Project. The project site is located at the intersection of Hwy 172 & DA Munro Road in the Courthouse Bay area of Marine Corps Base Camp Lejeune (MCBCL). The offsite roadway improvements will consist of road widening to add additional turning lanes and signalization at the intersections. Of these improvements, approximately 1,086 sf of additional impervious is being added to previously approved Drainage Area #5. This modification does not affect any other previously permitted drainage areas. 2. EXISTING SITE AND DEMOLITION: There are no jurisdictional wetlands located within the proposed project limits. There are no known contaminated areas located within the proposed project limits. For Drainage Area #5, existing drainage patterns onsite consist of overland sheet flow from the existing pavement to a shallow roadside drainage swale. The roadside swale conveys runoff to a small infiltration basin for treatment. The project site is part of the White Oak river basin and drains to Courthouse Bay (19-36 SA;HQW). Slopes onsite are generally mild and range from 0 to 3%. There are some areas near the existing drainage features with steeper slopes. 3. PROPOSED IMPROVEMENTS: Offsite road improvements are included to facilitate the anticipated increase in vehicular traffic as a result of the P-1253 CEB Complex construction and other ongoing projects in the area. The offsite roadway improvements are located at the intersection of Sneads Ferry Road and Marines Road and at the intersection of Sneads Ferry Road and DA Munro Road. At the intersection of Sneads Ferry and DA Munro Road, a 240-11 left turn lane will be added on westbound Sneads Ferry onto DA Munro. The existing right turn lane on westbound Sneads Ferry will be extended to 140-I1, and a 100-11 right turn lane will be added to DA Munro. A new traffic signal will be installed which will be synchronized with the existing traffic light at the intersection of Sneads Ferry and Marines Road. 4. DRAINAGE CONSIDERATIONS: The proposed project does not alter the existing drainage patterns onsite. Proposed grading will generally consist of cuts and fills of approximately 1-ft. There is sufficient capacity in the previously permitted infiltration basin to accommodate the additional impervious area. This permit modification does not make any changes to the existing infiltration basin. 5. EROSION CONTROL CONSIDERATIONS: Best Management Practices (BMP's), designed in accordance with the North Carolina Erosion and Sediment Control Planning and Design Manual, will be utilized to prevent sediment migration and transport from the site. Temporary measures will primarily consist of wattle sediment barriers in the roadside swales. Additional temporary measures will consist of rip -rap inlet/outlet protection and temporary seeding. These temporary measures will be located within the project limits to contain sediment runoff expected from construction operations. RECEIVED NOV 1 9 2012 BY: