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HomeMy WebLinkAboutSW8121205_HISTORICAL FILE_20130321STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW8 \21205 DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE 201'5 0 3 21 YYYYMMDD �T NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Pat McCrory Charles Wakild, P. E. Governor Director March 21, 2013 Commanding Officer MCB Camp Lejeune c/o Neal Paul, Deputy Public Works Officer Building 1005 Michael Road Camp Lejeune, NC 28547 Subject: State Stormwater Management Permit No. SW8121205 Louis Road Parking Lot, MCB Camp Lejeune, NC High Density Commercial Wet Detention Pond Project Onslow County Dear Commanding Officer: John E. Skvarla, III Secretary The Wilmington Regional Office received a complete, Stormwater Management Permit Application for Louis Road Parking Lot, MCB Camp Lejeune, NC on March 20, 2013. Staff review of the plans and specifications has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H.1000 and Session Law 2008-211. We are forwarding Permit No. SW8121205 dated March 21, 2013, for the construction, operation and maintenance of the BMP's and built -upon areas associated with the subject project. This permit shall be effective from the date of issuance until March 21, 2021, and shall be 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 fled 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, or need additional information concerning this matter, please contact Kelly Johnson, at (910) 796-7215. Since ely, For Charles W�kild, P.E., Director Division of Water Quality GDS/ kpj: S:IWQ&StormwaterlPermits & Projects120121121205 HD12013 03 permit 121205 cc: William Swaney, PE, NAVFAC Inspector, Onslow County Building Inspections Division of Coastal Management Wilmington Regional Office Stormwater File 1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Location: 512 N. Salisbury St. Ralegh, North Carolina 27604 One Phone: 91M07-63001 FAX: 9IM07-64921 DENR Assistance: 1-877-623-6748 NorthiCaroltna. Internet: vrxw.ncwatemualiN.om a anus it State Stormwater Management Systems Permit No. SW8121205 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY STATE STORMWATER MANAGEMENT PERMIT HIGH DENSITY COMMERCIAL DEVELOPMENT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO MCB Camp Lejeune Louis Road Parking Lot MCB Camp Lejeune, NC Louis Rd & Mulberry St, Camp Lejeune, Onslow County FOR THE construction, operation and maintenance of one (1) wet detention pond in compliance with the provisions of 15A NCAC 2H .1000 and Session Law 2008-211 (hereafter collectively referred to as the "stormwater rules') the approved stormwater management plans and specifications and other supporting data as attached and on file with and approved by the Division of Water Quality and considered a part of this permit. This permit shall be effective from the date of issuance until March 21, 2021, and shall be subject to the following specified conditions and limitations: I. DESIGN STANDARDS This permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data. 2. This stormwater system has been approved for the management of stormwater runoff as described in Section 1.8 of this permit. The stormwater control has been designed to handle the runoff from 13,600 square feet of impervious area. 3. A 50' wide vegetative buffer must be provided and maintained adjacent surface waters, measured horizontally from and perpendicular to the normal pool of impounded structures, the top of bank of both sides of streams and rivers and the mean high water line of tidal waters. 4. The tract will be limited to the amount of built -upon area indicated in this permit, and per approved plans. The built - upon area for the future development is limited to 0 square feet. 5. All stormwater collection and treatment systems must be located in either dedicated common areas or recorded easements. The final plats for the project will be recorded showing all such required easements, in accordance with the approved plans. 6. 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. Page 2 of 7 State Stormwater Management Systems Permit No. SW8121205 The following design criteria have been provided in the wet detention pond and must be maintained at design condition: a. Drainage Area, acres: 0.88 Onsite, ftz: 38,490 Offsite, ftz: 0 b. Total Impervious Surfaces, ftz: 13,600 Onsite, ftz: 13,600 Offsite, ftz: 0 C. Design Storm, inches: 1.5 d. Average Pond Design Depth, feet: 4.0 e. TSS removal efficiency: 90% f. Permanent Pool Elevation, FMSL: 26.0 g. Permanent Pool Surface Area, ftz: 2,607 h. Permitted Storage Volume, ft3: 1,811 i. Temporary Storage Elevation, FMSL: 26.55 j. Pre-dev.1 yr-24 hr. discharge rate, cfs: 0.41 k. Controlling Orifice: .75"0 pipe I. Orifice flowrate, cfs: 0.01 M. Permitted Forebay Volume, ft3: 1,336 n. Fountain Horsepower N/A (PPV <30,000 cf) o. Receiving Stream/River Basin: Cogdels Creek / White Oak P. Stream Index Number: 19.23 q. Classification of Water Body: "SC; NSW" 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. 2. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 3. The permittee shall, at all times, provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency. The signed and approved Operation and Maintenance Agreement must be followed in its entirety and maintenance must occur at the scheduled intervals. 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. Decorative spray fountains will not be allowed in the stormwater treatment system. 6. 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. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, a certification must be received from an appropriate designer for the system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation. Any deviations from the approved plans and specifications must be noted on the Certification. A modification may be required for those deviations. Page 3 of 7 State Stormwater Management Systems Permit No. SW8121205 8. If the stormwater system was used as an Erosion Control device, it must be restored to design condition prior to operation as a stormwater treatment device, and prior to occupancy of the facility. 9. Access to the stormwater facilities for inspection and maintenance shall be maintained via appropriate recorded easements at all times. 10. The permittee shall submit to the Director and shall have received approval for revised plans, specifications, and calculations prior to construction, for any modification to the approved plans, including, but not limited to, those listed below: a. Any revision to any item shown on the approved plans, including the stormwater management measures, built -upon area, details, etc. b. Redesign or addition to the approved amount of built -upon area or to the drainage area. C. Further development, subdivision, acquisition, lease or sale of any, 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. d. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. 11. Prior to the construction of any permitted future areas shown on the approved plans, the permittee shall submit final site layout and grading plans to the Division for approval. 12. 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. 13. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. A copy of the approved plans and specifications shall be maintained on file by the Permittee at all times. Ill. GENERAL CONDITIONS 1. 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 supporting documentation as listed on the form. The approval of this request will be considered on its merits and may or may not be approved. 2. The permittee is responsible for compliance with all permit conditions until such time as the Division approves the transfer request. Neither the sale of the project in whole or in part, nor the conveyance of common area to a third party constitutes an approved transfer of the stormwater permit. 3. Any individual or entity found to be in noncompliance with the provisions of this storrmwater management permit or the requirements of the Stormwater rules is subject to enforcement procedures as set forth in G.S.143 Article 21. 4. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances, which may be imposed by other government agencies (local, state, and federal) having jurisdiction. 5. In the event that the facilities fail to perform satisfactorily, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems. 6. The permittee grants DENR Staff permission to enter the property during normal business hours for the purpose of inspecting all components of the permitted stormwater management facility. The permit remains in force and effect until modified, revoked, terminated or renewed. 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. Page 4 of 7 State Stormwater Management Systems Permit No. SW8121205 9. The permittee shall submit a permit renewal request at least 180 days prior to the expiration date of this permit. The renewal request must include the appropriate documentation and the processing fee. Permit issued this the 2111 day of March 2013. NO TH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION rCharles Wdkild, P.E., Director Division of Water Quality By Authority of the Environmental Management Commission \ Page 5 of 7 State Stormwater Management Systems Permit No. SW8121205 Louis Road Parking Lot, MCB Camp Lejeune, NC Stormwater Permit No. SW8121205 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, 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 6 of 7 State Stormwater Management Systems Permit No. SW8121205 Certification Requirements: _1. The drainage area to the system contains approximately the permitted acreage. _2. The drainage area to the system contains no more than the permitted amount of built -upon area. _3. All the built -upon area associated with the project is graded such that the runoff drains to the system. _4. All roof drains are located such that the runoff is directed into the system. _5. The outlet structure elevations are per the approved plan. _6. The outlet structure is located per the approved plans. 7. Trash rack is provided on the outlet structure. _8. All slopes are grassed with permanent vegetation. _9.1 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 provided, such as a vegetated shelf, and a forebay. _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: NCDENR-DWQ Regional Office Inspector, Onslow County Building Inspections Page 7 of 7 - DWQUSE ONLY Date Received Fee Paid Pe it Number 305.5 06 Z42' 3 ApplicableRules: ❑ Coastal SW -1995 ❑ Coastal SW - 2008 ❑ Ph 1I - Post Construction (select all that apply) ❑ Non-CoastalSW- HQW/ORW Waters .❑ Universal Stormwater Management Plan ❑ Other WQ M mt Plan: State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM This form may be pliotocopied 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.): Louis Road Parking Lot MCB Camp Leieune, NC 2. Location of Project (street address): Intersection of Louis Road and Mulberry Street City:Camp Leieune County:Onslow Zip:28457 3. Directions to project (from nearest major intersection): After entering the main gate at Camp Leieune, head southeast on Sneads Ferry Road. Make a right on Louis Raod Project will be on the left just before Mulberry Street. 4. Latitude:34° 35' 46" N Longitude:77° 16' 56" W of the main entrance to the project. II. PERMIT INFORMATION: 1. a. Specify whether project is (check one): ®New ❑Modification ❑ Renewal w/ Modificationt tRenewals with modifications also requires SWU-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 number , its issue date (if known) and the status of construction: El Not Started ®Partially Completed* ❑ Completed* *provide a designer's certification 2. SlIecify the type of proj t (check one): ow Density Lgnigh Density Drains to an Offsite Stormwater System ❑Other ltv�xr� o 3 3. If this application is being' ubmitted 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 permit's can be obtained by contacting the Customer Service Center at 1-877-623-6748): ❑LAMA Major ®Sedimentation/Erosion Control: 0.88 ac of Disturbed Area ❑NPDES Industrial Stormwater ❑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 ro' s%edtwl 5 miles of a public airport? ®No ❑Yes �r� Ijes, s.L. 2012-200, Part VI: htq2://12ortal.ncdenr.org/web/wq/ws/su/statesv�/rules laws. DEC 14 2012 Form U-101 Version 06Au 1 - Page I of III. CONTACT INFORMATION 1. a. Print Applicant / Signing Official's name and title (specifically the developer, property owner, lessee, designated government official, individual, etc. who owns the project): Applicant/Organization:MCB Camp Leieune Signing Official & Title:Carl Baker, PE b. Contact information for person listed in item ],a 4bove: Street Address:1005 Michael Road City:Camp Leieune State:NC Zip:28457 Mailing Address (if City: Phone: ( ) Fax: 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: Mailing Address (if Phone: State: State: Fax: ( 1 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: ( ) Email: 4. Local jurisdiction for building permits: Point of Contact: Phone #: a �9 DEC 14 2012 Form SWU-101 Version 06Aug2012 Page 2 of 6 IV. PROJECT INFORMATION 1. In the space provided below, briefly summarize how the stormwater runoff will be treated. The stormwater on site will sheet flow off of a 40 space parking lot and into a ditch. Once in the ditch, the stormwater will enter a forebay and spill over into a wet pond where the required water quality volume will draw down a little over 2 days 2. a. If claiming vested rights, identify the supporting documents provided and the date they were approved: ❑ Approval of a Site Specific Development Plan or PUD Approval Date: ❑ Valid Building Permit Issued Date: ❑ Other: Date: b. If claiming vested rights, identify the regulation(s) the project has been designed in accordance with: ❑ Coastal SW -1995 ❑ Ph II - Post Construction \1-,, 740 1t3 3. Stormwater runoff from this project drains to the (A) N'<£ Op , River basin. 4. Total Property Area: 0.88 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*:0.88 acres Total project area shall be calculated to exclude the following the normal pool of imypounded structures, the area between the banks of streams and rivers, the area below the Normal High Water (NM line or Mean High Water (MHW) line, and coastal wetlands landward ffrrom 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 (orMHW) line may be included in the total project area. 8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 35 % 9. How many drainage areas does the project have?1 (For high densihj, count 1 for each proposed engineered stormwater BMP. For low density and other projects, use 1 for the whole properhj area) 10. Complete the following information for each drainage area identified in Project Information item 9. If there are more than four drainage areas in the project, attach an additional sheet with the information for each area provided in the same format as below. Basin Information � , Drainage Area 1- Drainage Area _ Drainage Area, Drainage Area _ ReceivingStream Name Co dels Creek Stream Class * SC,NSW Stream Index Number * 4'9=(3�5-5) tq-a 1 Total Drainage Area (so 38,490 On -site Drainage Area (sf) 38,490 Off -site Drainage Area (sf) 0 Proposed Impervious Area** (sff 13,600 Impervious Area** total 35 Impervious** Surface. Area Drainage Area _ Drainage Area _ Drainage Area Drainage Area On -site Buildings/Lots (sf) 0 On -site Streets (so 0 On -site Parkin (sf) 12,992 On -site Sidewalks (so 608 Other on -site (sf) 0 Future (sf) 0 Off -site (so 0 Existing BUA*** (so 0 Total (so: 1 13,600 Stream Class and Index Number can be determined at: httn://tiortal.ncderrr.orghweb/auq(ps/csu/classifications Impervious area is defined as the built upon area including, but not limited to,-bui r ltar 'ng sidewalks, gravel areas, etc. t " Form SWU-101 Version 06Aug2012 Page 3 of 6 DEC 14 2012 BY: '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 Proieets in Union County: Contact DWQ Central Office staff to check if the project is located within a Threatened & Endangered Species watershed that maybe subject to more stringent stormwater requirements as per I5A 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 subm tted for each BMP specified for this project. The latest versions of the forms can be downloaded fromhttD://oortal.ncdenr.oriz/web/wa/ws/su/bmo-manual. VI. SUBMITTAL REQUIREMENTS Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ). A complete package includes all of the items listed below. A detailed application instruction sheet and BMP checklists are available from http://portal.ncdenr.org/web/wq/ws/su/statesw/forms_docs. The complete application package should be submitted to the appropriate DWQ Office. (The appropriate office may be found by locating project on the interactive online map at http://portal.ncdenr.org/web/wq/ws/su/maps.) Please indicate that the following required information have been provided by initialing in the space provided for each item. All original documents MUST be signed and initialed in blue ink. Download the latest versions for each submitted application package from http://portal.ncdeni.org/web/wq/ws/su/statesw/forms_docs. Initials 1. Original and one copy of the Stormwater Management Permit Application Form. uil 2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants N A Form. (if required as per Part V11 below) 3. Original of the applicable Supplement Form(s) (sealed, signed and dated) and O&M WAS agreement(s) for each BMP. 4. Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer to WAS http://www.envhelp.org/pages/onestopexpress.htn-d for information on the Express program and the associated fees. Contact the appropriate regional office Express Permit Coordinator for additional information and to schedule the required application meeting.) 5. A detailed narrative (one to two pages) describing the stormwater treatment/management for �S 6. A USGS map identifying the site location. If the receiving stream is reported as class SA or the vJAJ receiving stream drains to class SA waters within 1/2 mile of the site boundary, include the rh mile radius on the map. 7. Sealed, signed and dated calculations (one copy). LJ'- 8. Two sets of plans folded to 8.5" x 14" (sealed, signed, & dated), including: �1J/is 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. Q� ` j. Site Layout with� all BUA identified and dimensioned. E k. Existing contours, proposed contours, spot elevations, finished floor elevations. 1. Details of roads, drainage features, collection systems, and stormwater control m uresFC 14 .203+0 m. Wetlands delineated, or a note on the plans that none exist. (Must be delineated b. qualified person. Provide documentation of qualifications and identify the perso ' ho 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). Form SWU-101 Version 06Aug2012 Page 4 of 6 p. Vegetated buffers (where required). 9. Copy of any applicable soils report with the associated SHWT elevations (Please identify elevations in addition to depths) as well as a map of the boring locations with the existing elevations and boring logs. Include an 8.5"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 DWQ to verifij the SHWT prior to submittal, (910) 796-7378.) . 10. A copy of the most current property deed. Deed book: N A Page No: 11. For corporations and limited liability corporations (LLC): Provide documentation from the NC Secretary of State or other official documentation, which supports the titles and positions held by the persons listed in Contact Information, item la, 2a, and/or 3a per 15A NCAC 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. hqp://www.secretary.state.nc.us/Corporations/CSearch.aspx VIL DEED RESTRICTIONS AND PROTECTIVE COVENANTS For all subdivisions, outparcels, and future development, the appropriate property restrictions and protective covenants are required to be recorded prior to the sale of any lot. If lot sizes vary significantly or the proposed BUA allocations vary, a table listing each lot number, lot size, and the allowable built -upon area must be provided as an attachment to the completed and notarized deed restriction form. The appropriate deed restrictions and protective covenants forms can be downloaded from hhtt ://portal.ncdenr.org/web/wg/ws/su/statesw/forms does. Download the latest versions for each submittal. In the instances where the applicant is different than the property owner, it is the responsibility of the property owner to sign the deed restrictions and protective covenants form while the applicant is responsible for ensuring that the deed restrictions are recorded. By the notarized signature(s) below, the permit holder(s) certify that the recorded property restrictions and protective covenants for this project, if required, shall include all the items required in the permit and listed on the forms available on the website, that the covenants will be binding on all parties and persons claiming under them, that they will run with the land, that the required covenants cannot be changed or deleted without concurrence from the NC DWQ and that they will be recorded prior to the sale of any lot. Vill. CONSULTANT INFORMATION AND AUTHORIZATION Applicant: Complete this section if you wish to designate authority to another individual and/or firm (such as a consulting engineer and/or firm) so that they may provide information on your behalf for this project (such as addressing requests for additional information). Consulting Engineer: William Swaney, PE Consulting Firm: NAVFAC Mailing Address:9742 Maryland Ave City:Norfolk State:VA Zip:23511 Phone: (757 ) 322-8360 Fax: (757 ) 322-5280 Ernail:n-ichael.insetta@navv.mil IX. PROPERTY OWNER AUTHORIZATION (if Contact Information, iteni 2 has been filled out, rornplete this section) 1, (print or hjpe name of person listed in Contact In formation, item 2a) certify that 1 own the property identified in this permit application, and thus give permission to (print or hype name of person listed in Contact Infornation, item la) with (print or hjpe name of organization listed in Contact Inforniation, item 1a) to develop the project as currently proposed. A copy of the lease agreement or pending property sales contract has been provided w' s b dicates the party responsible for the. operation and maintenance of the stormwater syst DEC 14 2012 BY: Form SWU-101 Version 06Aug2012 Page 5 of 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 personally appeared and acknowledge the due execution of the application for a stormwater permit. Witness my hand and official seal, SEAL My commission expires X. APPLICANT'S CERTIFICATION 1, (print or hjpe name of person listed in Contact Information, item ]a) Carl Baker 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 coven will be recorded, and that the proposed project complies with the requirements of the applicable stormwate ru es under 1A�KCAq 21-1.1000 and any other applicable state stormwater requirements. Signatu Date: / 0 —/ 7 —/2' , a Notaarjrr% Public for the State of 41 _/G . Countyof do hereby/certify that '7' d personally appeared before me this�day of and ackn dge e�duuee executio of the application for a stormwater permit. Witness my hand and official seal, �-- ALICE A. BONNETTE Notary public Onalow County M Commieslan Ezh CB rolina , _ Form SWU-101 Version 06Aug2012 SEAL My commission expires C:2702 / rEIVE, DEC 14 2012 Page 6 of 6 BY: q-14t; Johnson, Kelly From: Swaney, William A CIV NAVFAC MIDLANT, Cl [william.swaney@navy.mil] Sent: Wednesday, March 20, 2013 4:30 PM To: Johnson, Kelly Subject: RE: State Stormwater Permit, SW8 121205, Louis Rd Parking Lot Attachments: P1265_C-301_Louis Road Parking .pdf; P1265_L100_Louis Road Parking .pdf; P1265_C-502 _Louis Road Parking .pdf Kelly Here are the revised plans showing your requested additional information. There are three PDF files attached: P1265_C-301_Louis Road Parking.pdf P1265_C-502_Louis Road Parking.pdf P1265_1-100_Louis Road Parking.pdf C-301 shows the new cross section of the pond, C-502 shows the outlet structure which is modified to alter the inverts of the 15" RCP outlet pipe, and L-100 is the revised landscape plan. Since this submittal was originally sent to you on half -sized plans, I believe the attached PDFs can be printed in your office. If you need us to print our hard copies and send them to you please let me know. If you have any questions, please feel free to call me. V/r, Bill Swaney, P.E. 757-322-8360 -----Original Message ----- From: Johnson, Kelly[mailto:kelly.o.johnson()ancdenr.gov] Sent: Wednesday, March 20, 2013 10:02 AM To: Swaney, William A CIV NAVFAC MIDLANT, CI Subject: FW: State Stormwater Permit, SW8 121205, Louis Rd Parking Lot From: Johnson, Kelly Sent: Wednesday, February 20, 2013 12:44 PM To: william.swanev(@navv.mil Subject: State Stormwater Permit, SW8 121205, Louis Rd Parking Lot Please see the attached letter which will be mailed today. 1 Thanks, Kelly *** My email has changed to kellv.p.iohnson(@ncdenr.eov Kelly Johnson Kelly Johnson Environmental Engineer Division of Water Quality Stormwater Permitting 127 Cardinal Drive Extension Wilmington, NC 28405-3845 Office: 910.796.7331 Fax: 910.350.2004 E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties. e A& M NCDENR North Carolina Department of Environment and Natural Resources Pat McCrory Governor February 20. 2013 Commanding Officer MCB Camp Lejeune c/o Neal Paul, Deputy Public Works Officer Building 1005 Michael Road Camp Lejeune, NC 28547 Division of Water Quality Charles Wakild, P. E. Director Subject: Request for Additional Information Stormwater Project No. SW8121205 Louis Road Parking Lot, MCB Camp Lejeune, NC Onslow County Dear Commanding Officer: John E. Skvarla, III Secretary The Wilmington Regional Office received and accepted a State Stormwater Permit Application for Louis Road Parking Lot, MCB Camp Lejeune, NC on December 14, 2012. A request for additional information was mailed on January 11, 2013 and a response was received on February 14, 2013. A preliminary in-depth review of that information has determined that the application is not complete. The following information is needed to continue the stormwater review: 1. Pond Cross Section: The pond cross section has been revised to include more information, but the temporary pool elevation, the top of the 1 Oft shelf, and the bottom of the 1 Oft shelf elevations are still needed on this diagram. 2. Vegetation: Trees are not recommended for the pond shelf. Please seepages 10:16-17 for further information as well as the plant lists for shallow water and shallow land on pages 9:19-20. Please remember that a change to one number may have a domino effect on other numbers. Please check all plans, calculations and forms to ensure that the numbers are consistent throughout. Please note that this request for additional information is in response to a preliminary review. The requested information should be received in this Office prior to March 20, 2013, or the application will be returned as incomplete. The return of a project will necessitate resubmission of all required items, including the application fee. If you need additional time to submit the information, please mail, email or fax your request for a time extension to the Division at the address and fax number at the bottom of this letter. The request must indicate the date by which you expect to submit the required information. The Division is allowed 90 days from the receipt of a completed application to issue the permit. The construction of any impervious surfaces, other than a construction entrance under an approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject to enforcement action pursuant to NCGS 143- 215.6A. Please reference the State assigned project number on all correspondence. Any original documents that need to be revised have been sent to the engineer or agent. All original documents must be returned or new originals must be 1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Location: 512 N. Salisbury St. Ralegh, North Carolina 27604 One Phone: 919-807-63001 FAX: 919-807&1921 DENR Assistance: 1-877-623-6748 NorthCarolina Internet: vmv.nmateroualiN.oro Naturn l Commanding Officer February 20, 2013 Page 2 of 2 provided. Copies are not acceptable. If you have any questions concerning this matter please feel free to call me at (910) 796-7215 or email me at kelly.p.johnson@ncdenr.gov. Sincerely, ell son Y Environmental Engineer GDS/kpj: S:\WQS\Stormwater\Permits & Projects\2012\121205 HD\2013 02 addinfo 121205 cc: William Swaney, PE, NAVFAC Wilmington Regional Office Stormwater File General Data: Impervious, Drainage Area and Volume PROJECT NUMBER: SW8 121205 Reviewer: K Johnson DRAINAGE BASIN: White Oak Current Date 20-Feb-13 Original Run Date: 11-Jan-13 DA Number 1 2 3 4 S 6 7 8 9 10 BMP Type Wet Pond No BMP In OA No BMP In DA No BMP In DA No BMP In DA No BMP In OA No BMP In DA No BMP In DA No BMP In DA No BMP In DA Receiving Stream Cogdels Creek Stream Index 19-(15.5) Class Impervious Area Proposed Impervious ALL IMPERVIOUS Total ft2: SC, NSW 13,600 0 0 0 0 0 0 0 0 0 Onsite Buildings 0 Onsite Streets 0 Onsite Parkinq 12 992 Onsite Sidewalks 608 Onsite Other Future Offsite Existing -rBrevi`o `I` -Pe itt d Im egg • Id R—MeeCK 0 0 0 0 0 0 0 0 0 0 Onsite Buildin s Onsite Streets Onsite Parkin Onsite Sidewalks Onsite Other Future Offsite Existm P.ro ose—OMEMd Im eru cus Sub ect o 2008/Phil RUIe fi'. Drainage Area Drainage Area Total tt': 13,600 38,490 0 0 0 0 0 0 0 0 0 Onsite 8': 38,490 Offsite ft': 0 Previous,` -Pe mitted,Draiha e�Area Old -Rule; * 0 0 0 0 0 0 0 0 0 0 Onsite ft': Offsite ft': Proposed DA (Being Added By Mod) , f12: 38,490 Oraina a Area Subject to Old Rule fl': 0 0 0 0 0 0 0 0 0 0 Drainage Area Sub act to New Rule f : 38,490 Percent Impervious Overall, per DA: Volume Required Volume Required, Old Rule ft': 35.33% RVPo,I Du.J,e .M, Old Rule: Design Storm Old Rule in: Volume Required, New Rule ft3: 1,771 RVP„ D..I.me,1, New Rule: 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 RvPo,m,.,i,w„m, New Rule: 0.37 Design Storm, s., in: 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 Design Storm„ 24h,, in: Subject to SA? Y or N N Volume Required,,, tt : 1,771 Volume Required,,,241„ ft : 0 Volume Required, Total Old +New) Rule W: 1 1,771 Wet Ponds PROJECT NUMBER: SW8 121205 Reviewer: K Johnson DRAINAGE BASIN: White Oak Current Date 20-Feb-13 Original Run Date: 11-Jan-13 DA Number 1 2 3 4 5 6 7 a 9 10 BMP Type Minimum Surface Area %impervious Wet Pond 35.3% No BMP In DA No BMP In DA No BMP In DA No BMP In DA No BMP In DA No BMP in DA No BMP in DA No BMP In DA No BMP In DA Lower Impervious 30.0% #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! #VALUEI #VALUE! #VALUE! #VALUE! Upper Impervious 40.0% #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! TSS 85 or 90: 90 Lower SA/DA 2.7 #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! #VALUEI #VALUE! #VALUE! #VALUE! Upper SA/DA 3.5 #VALUEI #VALUE! #VALUE! #VALUEI #VALUEt #VALUE! #VALUE! #VALUE! #VALUE! SA/DA ratio 3.1 #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! PP Surface Area req, ff : Storage Calculations Elevation Top of Sediment bottom and ,fmsl: 1,203 21.00 #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! Elevation Bottom of shelf, fmsl: 25.50 Elevation Permanent Pool, fmsl: 26.00 Elevation Top of Shelf, fmsl: 26.50 Elevation Temp. Pool, fmsl: 26.55 Area, Top of Sediment bottom pond), it': 906 Area, Bottom of Shelf, ft': 1,594 Area, Perm Pool, F 2,607 Area, Top of Shelf, 11: 3,796 Area, Tem .Pool, : 4,625 Volume Provided(Temp Pool), DWQ Calculated, ft': 1,811 0 0 0 0 0 0 0 0 0 Volume Provided(Temp Pool , Prodded per Conawlant, it': 1,811 Volume Required(Temp Pool), DWQ cal.WW, ft': 1,771 Consultant Provided Enough Volume? Y Average Depth Option 1 or Option 2 Enter 1 or 2? 2 Average Depth Provided, a: 4.0 Average Depth - OPTION 1 - DWQ Calculated, ft: 1 2.561 #DIV/01 #DIV/01 #DIV/0! #DIV/0! I #DIV/01 #DIV/O! #DIV/O! #DIV/01 #DIV/0! Average Depth - OPTION 2 -, DWQ Calculated, ft: Forebay Volume Permanent Pool Volume, 11: 1 4.01 6,675 #DIV/0! 0 #DIV/0! 0 #DIV/01 0 #DIV/0! 0 #DIV/01 0 #DIV/0! 0 #DIV/0! 0 #DIV/0! 0 #DIV/0! 0 Forebay Volume, Required, tt: 1,335 0 0 0 0 0 0 0 0 0 Forebay Volume, Provided, ff : 1,336 Percent of Permanent Pool (18-22% is Target): Drawdown Av era a Head, 0: 20%1 0.17 #DIV/01 0.00 #DIVIOII 0.00 #DIV/0! 0.00 #DIV/01 0.00 #DIV/0! 0,00 #DIV/O! 0.00 #DIV/0! 0.00 #DIV/0! 0.00 #DIV/O! 0.00 Average Flow',tt /sec: 0.010 #VALUEI #VALUEI #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! #VALUEI #VALUE! Average Flow 05, h /sec: 0.004 #VALUEI #VALUEI #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! Qz Area, in : 0.737 #VALUEI #VALUEI #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! #VALUEI #VALUE! Q5 Area, in : 0.295 #VALUEI #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! #VALUE! #VALUEI #VALUE! No. of Orifices 1 Orifice Diameter, in: 0.75 Orifice Area, in : 0.442 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 Weir Height, in: Weir Length, in: Weir C: #DIV/01 #DIV/0! #DIV/01 #DIV/0! #DIV/01 #DIV/O! #DIV/01 #DIV/O!I #DIV/0! #DIV/O! Weir L, Effective Length, ft: -0.035 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 Average Orifice Flowrate, DWO Calc (QpwQ) ff /sec: 0.006 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 Average Orifice Flowrate, Reported (QPe�uee) a /sec: 0.010 Average Orifice Flowrate is Adequate? set Ranee in cak lose Enough? Runoff Coefficient Cc: 0.250 0.250 0.250 0.250 0.250 0.250 0.250 0.250 0.250 0.250 1 yr 24 hr rainfall depth, in: 1 yr 24 hr Intensity (I) in/hr: 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1 yr 24 hr Pre -Development (0), fl /sec: 0.000 Avg. Orifice fiow<Pre Q? N Drawdown, days: Soils Report Data Ground Elevation at Boring in Soils Report, fmsl: 3.34 Distance Ground to SHWT per Soils Report, in: Distance Ground to SHWT per Soils Report, it: 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 SHWT Elevation, DWQ Calculated fmsl: 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 SHWT Elevation, Reported by Consultant, fmsl: 26.00 Distance SHWT to PP, ft: Design OK if.. O<_ Value <_ 0.5 -26.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Permanent Pool Elevation, fmsl: Pump Max HP: 1 26.001 N/A 0.001 I N/A 0.001 I N/A 0.001 N/A 0.001 INIA 0.001 I N/A 0.001 INIA 0.00 I N/A 0.001 N/A 0.00 INIA Pond Bottom Bot Shelf PP Top Shelf TP Wet Pond Basin Forebay Total Contour El (ft) SA (5f) Inc Vol (cf) Cum Vol (cf) Contour El Ift) SA (5f) Inc Vol (cf) Cum Vol (cf) Contour El (ft) SA (sf) Inc Vol (d) Cum Vol (d) 21.00 879 0 0 21.00 27 0 0 21.00 906 0 0 22.00 879 879 879 22.00 89 58 58 22.00 968 937 937 23.00 879 879 1,758 23.00 185 137 195 23.00 1,064 1,016 1,953 24.00 879 879 2,637 24.00 313 249 444 24.00 1,192 1,128 3,081 25,00 879 879 3,516 25.00 476 395 839 25.00 1,355 1,274 4,3S5 25.50 1,026 476 3,992 25.S0 568 261 1,100 25.S0 1,S94 737 5,092 26.00 1,940 742 4,734 26.00 667 309 1,408 26.00 2,607 1,0S0 6,142 26.50 3,024 1,241 5,975 26.50 772 360 1,768 26.50 3,796 1,661 7,743 26.55 3,831 171 6,146 26.55 794 39 1,807 26.55 4,625 211 7,953 27.00 4,385 1,849 7,995 27.00 4,38S 1,849 7,995 27.50 4,800 2,296 10,291 27.50 4,800 2,296 10,291 28.50 5,787 5,294 1S,584 28.50 5,787 5,294 15,584 Volume Provided: 1,811 (TP-PP Cumulative) Transmittal Date: 14 February 2013 To: NC-DENR 127 Cardinal Drive Extension Wilmington, NC 28405 From: Naval Facilities Engineering Command — Mid -Atlantic Marine Corps North Carolina IPT 6506 Hampton Blvd., Bldg. C Norfolk, VA 23508 Attn: William A. Swaney, P.E. RE: P-1264 Louis Road Parking Lot Storm Water Review - RESUBMITTAL copies Date Description 3 Half Size Plan Set Remarks: For review and approval. Please call if you have any questions, 757-322-8360. Respectfully, Distribution: NAVFAC Files LAU_ William A. S ney, P.E. FEB 14 2013 FKWA MC®ENR North Carolina Department of Environment and Natural Resources Pat McCrory Governor January 11, 2013 Commanding Officer MCB Camp Lejeune c/o Neal Paul, Deputy Public Works Officer Building 1005 Michael Road Camp Lejeune, NC 28547 Division of Water Quality Charles Wakild, P. E. Director Subject: Request for Additional Information Stormwater Project No. SW8121205 Louis Road Parking Lot, MCB Camp Lejeune, NC Onslow County Dear Commanding Officer: John E. Skvarla, III Secretary The Wilmington Regional Office received and accepted a State Stormwater Permit Application for Louis Road Parking Lot, MCB Camp Lejeune, NC on December 14, 2012. A preliminary in-depth review of that information has determined that the application is not complete. The following information is needed to continue the stormwater review: Plans: a. Pond Cross Section: Please show the pond cross section on the plans showing all of the side slopes as required by the manual and the regulations as well as all of the applicable design elevations. Please also show the bottom of the pond at the sediment cleanout elevation (20msl), and the 4ft wall from elevation 21 msl to 25msl below the permanent pool of the pond on the plans. ,K Trash Grate: Please show the outlet structure's trash grate on the plans with holes < 6". Project Area: Please show the project area on the plans with bearing and distance lines, and ensure that all of the impervious area for the project is included in the project area. Si! Stream Buffers: Page 2 references a stream buffer north of the property. If there are any streams or stream buffers inside the project area please label them on the plan measured 50ft from the top of bank. twO%tw —1 (.Acam - e. Vegetation: Please show vegetation on the vegetated shelf. /07,i- Please provide stamped, signed and dated plans. NIa-G� Calculations: ta% Table of Elevation, Area, and Volume: Please review these calculations and make revisions if s$ necessary. Please provide stamped, signed and dated calculations. 3. Permittee: I understand that Neal Paul has taken the place of Cad Baker, who had signed the application. Please note that the permit will be addressed as is listed above. Please remember that a change to one number may have a domino effect on other numbers. Please check all plans, calculations and forms to ensure that the numbers are consistent throughout. 1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Location: 512 N. Salisbury St. Ralegh, North Carolina 27604 One Phone. 919807-63001 FAX: 919807-64921 DENR Assistance: 1877-623-6748 NorthCarci ina Internet:w .ncwatemualitv.oro JVaturallu Commanding Officer January 11, 2013 Page 2 of 2 Please note that this request for additional information is in response to a preliminary review. The requested information should be received in this Office prior to February 11, 2013, or the application will be returned as incomplete. The return of a project will necessitate resubmission of all required items, including the application fee. If you need additional time to submit the information, please mail, email or fax your request for a time extension to the Division at the address and fax number at the bottom of this letter. The request must indicate the date by which you expect to submit the required information. The Division is allowed 90 days from the receipt of a completed application to issue the permit. The construction of any impervious surfaces, other than a construction entrance under an approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject to enforcement action pursuant to NCGS 143- 215.6A. Please reference the State assigned project number on all correspondence. Any original documents that need to be revised have been sent to the engineer or agent. All original documents must be returned or new originals must be provided. Copies are not acceptable. If you have any questions concerning this matter please feel free to call me at (910) 796-7215 or email me at kelly.p.johnson@ncdenr.gov. Sinc rely, elly J hn on Environ on' Engineer GDS/kpj: S:1WQS1StormwatehPermits & Projects120121121205 HD12013 01 addinfo 121205 cc: William Swaney, PE, NAVFAC Wilmington Regional Office Stormwater File ) ompleteness Review Checklist Project Name: Lm�'J Q t 6 LO-7 Received Date: )IDI�C-� Project Location: U15 Accepted Date: i\ Rule(s) 0"08 Coastal 1-11995 Coastal Phase II (WiRO) Universal 1-11988 Coastal Type of Permit New or Mod or PR Existing Permit # (Mod or PR): nPE Cert on File? or Type: Co rr (%00) Stream Class: Map Paperwork Emailed Engineer on: Dupplement(s) (1 original per BMP) BMP Type(s): colo JJO&M with correct/original signatures (1 original per BMP except LS/VFS and swoles) on with correct/original signatures or LLC: Sig. Auth. per SoS or letter rk--J$s05 (within 6mo) ;7MSoils Report with SHWT Calculations (signed/sealed) Nkt 15hW SLC1— F1No obvious errors nsity includes common areas, etc Restrictions, if subdivided: to SW8 Note to Reviewer: n "Signed & Notarized Correct Template (Comm/Res & HD/LD) or Dec. Covenants & Rest. Plans E]Z Sets Details (roads, cul-de-sacs, curbs, sidewalks, BMPs, Buildings, etc) Grading Wetlands: Delineated or No Wetlands Vicinity Map Layout (proposed BUA dimensions) Legend ElDA Maps 1-1 Project Boundaries Infiltration Wet Pond 5i Offsite Soils Report Xr Soils Report - F—JPE Cert for Master Lot #: SHWT: El Deed Rest for Master Lot # Matches Master Bottom: �SHWT: PP: BUA Permitted (Master): sf Visited: BUA Proposed (Offsite): sf Additional Information: ' Permitted Proposed: Proposed: Proposed:_ BUA (sf) DA (sf) PP (el) SHWT (el) Depth (ft) SA (sf) DIARINE CORPS NORI'11 CAROLINA 119' CIVII. RRANCII: CODE. 0PQCI2 9742 MARYLAND AVENUE NORFOLK, VIRGINIA 23511 PAX: (757) 322-8280 TO NCDENR, Wilmington Regional Office Surface Water Protection Section LETTER OF TRANSMITTAL DATE JOB ORDERNUMBER December 13, 2012 7X5080 ATTENTION Ms. Jan Davis Water/Land Quality) REF: Louis road parking Lot, P1265, 7X5080 Storm Water and E&SC Permit Application and Associated Materials 127 Cardinal Drive Extension WE ARE SENDING YOU E Attached ❑ Under separate Wilminaton. NC. 28405-3845 cover via the following items: ❑ Shop drawings E Copy of letter ❑ Prints ❑ Change order E Plans ❑ Samples E Specifications E Sanitary Sewer Permit Application COPIES DATE NO, DESCRIPTION 1 9/21/12 Application Fee - Check #8522-17679850; $505.00 1 12/13/12 Strom water permit application package 1 . 9/27/12 Application Fee - Check #8522-17680387; $65.00 1 12/13/12 E&SC permit application package THESE ARE TRANSMITTED as checked below: E For approval ❑ Approved as submitted ❑ Resubmit copies for approval ❑For your use []Approved as noted ❑ Submit copies for distribution ❑ As requested ❑ Returned for corrections ❑ Return corrected prints E For review and comment ❑ ❑ FOR BIDS DUE 20 ❑ PRINT RETURNED AFTER LOAN TO US REMARKS: SEC EUV E ` DEC 14 2012 av: COPY'TO SIGNED: William Swaney-/��S`� PHONE NUMBER: 757-322-8360 APPLICATION FOR APPROVAL OF STORMWATER MANAGEMENT PERMIT Ken Louis Road Parking Lot MCB CAMP LEJEUNE JACKSONVILLE, NC COMMANDING OFFICER MARINE CORPS BASE CAMP LEJEUNE JACKSONVILLE, NC PREPARED BY: -ina Command NAVFAC MID -ATLANTIC NAVAL FACILITIES ENGINEERING COMMAND MID -ATLANTIC MARINE CORPS NORTH CAROLINA IPT 6506 HAMPTON BLVD LRC-BLDG C NORFOLK, VIRGINIA 23508-1278 December 13, 2012 EC;FQv'F DEC 14 2012 dY:-- Louis Road Parking Lot Table of Contents Section A: Application Section B: Wet Detention Basin Supplement Section C: Wet Detention Basin Maintenance Section D: Narrative Section E: USGS Map Section F: Calculations 1-year Pre -Development 10-year Pre -Development Water Quality Volume Pond Sizing 1, 2, 10, 100 Post -Development Drawdown Time Section G: North Carolina P. E. Exemption Letter Section H: Project Construction Plans Section I: Geotechnical Report ECE��� DEC 14 2012 13Y:----, LOUIS ROAD PARKING LOT PROJECT CONSTRUCTION PLANS (SEE ATTACHED) Ft LA gr4M RLa wA1YJI Xjrrz PC RLa o00pv IlL RLe MrE RW i J. A{CRI AlKma A CoinwwwLKRis H�Mq. /uauCal R OA1MK KW.a IMw1 l ilA,R0. PuatJC Yp}afn JReRr T.GR,a, osm.t, NORTH CAROUNA STATC BOARD OF RCOt8TRATtON roa PROICa81pNAl CNOINCCRn AND LAND BURYLYORa March 30, 1993 Mr. James E. Butler, PE Department of the Navy - Atlantic Division Naval Facilities Engineering Command 1510 Gilbert Street Norfolk, W&La 23511.26" Dear Mr. Butler: MSo bit IORaa aOAa IWOGKRL SIaea anna� Naa R1161"e9s47 In accordance with your written request of March 25, 1993, I am enclosing for your information a copy of The North Carolina Engineering and Land Surveying Act, G. S. 89C. i will refer your attention to G. S. 89C-25 which provides limitations on the application of the Statute. Paragraph 6 specifically exempts 'Practice by members of the amid forces or employees of the government of the United States while engaged in the practice of engineering or land surveying solely for said government on government -owned works and projeow This exemption should not be construed as to allow engineering services to be provided to the Department of the Navy by Iron -registered contract employees. For any such circumstance, a North Carolina registrant would need be in responsible charge of any engineering services to be provided for a North Carolina projecL I trust this information will be of some service and ask that you contact me if this office can be of further assistance. Sincerely. . 7 Itry T. Carter Executive Secretary JTC/jss Enclosures NPfFAC Naval Facilities Engineering Command Subject: Geotechnical Services Louis Road Parking Lot Marine Corps Base Camp Lejeune, North Carolina Distribution: All Applicable Team Members Background Information: On May 13, 2012, the NAVFAC MIDLANT Geotechnical Department received email correspondence from the project civil engineer requesting geotechnical support services for the subject project. It was requested that geotechnical data be obtained to facilitate design of the stormwater management system and pavement section. Site and Project Information: The proposed project consists of the construction of a 40 space automobile parking lot. The parking lot will be surfaced with asphalt concrete and will use perimeter concrete curb and gutter. The finished pavement grades are anticipated to be at or slightly below (i.e. approximately one foot) the existing site grades. A stormwater management system, possibly consisting of an infiltration trench, will be located along the east side of the site. The majority of the proposed project site is currently a naturally vegetated field. The eastern side of the site is moderately wooded with a stand of young coniferous trees. The existing ground surface is relatively flat with an approximate elevation of 27 feet based on Google Earth. Field Exploration Activities: On June 5, 2012, members of the MIDLANT Geotechnical Department were present at the above referenced project site to perform the hand auger boring and dynamic cone penetrometer testing. The test locations were established in the field from measurements with a 100 ft. tape off of prominent existing site features. Hand auger borings were drilled at the approximate locations illustrated on the enclosed Field Exploration Location Plan. Two hand auger borings, identified as HA-1 and HA-2, were conducted to a depth of 7 feet on this date. The boreholes were backfilled with auger cuttings for safety considerations upon completion. The soils encountered in the hand auger borings were visually classified in general accordance with ASTM D 2488. Dynamic cone penetrometer (DCP) testing was performed adjacent to boring locations HA-1 and HA-2. A Kessler DCP was used to conduct the tests. The device consisted of an upper assembly, drive rod, adapter and disposable cone. The Kessler DCP testing device was driven into the soil by dropping a single -mass 17.6 lb hammer from a height of 22.6 inches. The NAVFAC Mid-At/antic Geotechnica/ Department•9742 Mary/and Avenue•6LDG Z•140 Suite 126•Nortoik, VA 23511 Geotechnical services Louis Road Parking Lot Marine Corps Base, Camp Leleune, North Carolina June 28, 2012 fi2/FAC Revised July 2, 2012 depth of cone penetration was recorded for every hammer drop. The Kessler DCP can be used to estimate in -situ soil strengths and characteristics. A chart correlating DCP data to California Bearing Ratio (CBR) value is included in the enclosed information. On June 25, 2012, a member of the MIDLANT Geotechnical Department was present at the project site to perform infiltration testing. Hand auger borings were drilled at the approximate locations illustrated on the enclosed Field Exploration Location Plan. Two hand auger borings, identified as HA-3 and HA-4, were conducted on this date to a depth of 5 feet each below the existing ground surface. The soils encountered in the hand auger borings were visually classified in general accordance with ASTM D 2488. Both borings were advanced to a depth of 4 feet and a 4 inch diameter well screen was installed. Then the interior of the well screen was then cleaned of loose material and the boring was advanced within the screen to the termination depth noted above. The boring was then backfilled to a depth of 4 feet with No. 2 well sand. Hydraulic conductivity testing was performed at boring locations HA-3 and HA-4 using a calibrated reservoir and a water control unit (Johnson Permeameter) capable of maintaining a constant water head within the borehole during testing. The size of the calibrated reservoir was selected based on the anticipated hydraulic conductivity rate. A 3250 ml and 1760 ml reservoir was selected for HA-4 and HA-3, respectively. The water control unit was attached to the calibrated reservoir using a braided PVC hose and suspended above the bottom of the borehole with a metal cable. The suspended height of the water control unit is a function of the borehole diameter and ranges between five to ten times the borehole radius depending on the published literature referenced. Upon completing the test apparatus set up, the shut-off valve was opened which allowed water to fill the borehole to the desired constant water head elevation. The calibrated reservoir was continuously refilled to maintain water flow as the wetting bulb developed around the borehole and the water flow rate stabilized. Measurements of both flow and time were then recorded until a relatively steady flow was observed. In addition to recording both flow and time, all accessible connections and valve assemblies were monitored for leakage during testing. Upon the completion of infiltration testing, the well screen was removed and the boreholes were backfilled with auger cuttings for safety considerations. Subsurface Conditions: The Hand Auger Boring records, which depict specific information regarding the soil materials encountered at the individual boring locations, have been included as an attachment. The hand auger boring at location HA-1 revealed the presence of an approximate 1 foot thick layer of Silty Fine SAND (SURFICIAL SOIL) containing trace organics. Underlying the surficial layer was Silty Fine SAND (SM) with trace clay to a depth of approximately 4 feet thick. The SM soil layer was underlain by Fine SAND (SP-SM) with trace silt and clay nodules to the boring termination depth of 7 feet. At boring location HA-2, the SURFICIAL SOIL layer was approximately'/z foot thick and characterized as a Silty Fine SAND with gravel and organics. NA VFAC Mid -Atlantic Geotechnical Department P a g e 12 of 4 Geotechnical services k,` Louis Road Parking Lot low Marine Corps Base, Camp Lejeune, North Carolina June 28, 2012 N2JFflC Revised July 2 2012 Underlying the surficial soil layer was a 2 foot thick layer of Silty Fine SAND (SM) with trace clay. The SM soil layer was underlain by Fine SAND (SP-SM) with trace silt and clay lenses to the boring termination depth of 7 feet. The ground water level was encountered at a depth of approximately 6 feet at the boring locations based on the wetness of the recovered soil. Seasonal groundwater fluctuations on the order of 2 feet are not uncommon within the area of the project. Traditionally, the lowest groundwater levels occur in late summer and early fall while the highest levels tend to occur in late winter to early spring. The seasonal high water table (SHWT) is judged to be on the order of 4 feet below the existing ground surface based on indicators (i.e. redoxomorphic soil modeling, etc.) observed within the borings. It should be noted that groundwater levels may be impacted by pumping from nearby wells, seasonal factors, and extreme weather events. Features such as trenches, swales, ponds, and areas of impermeable surfaces can also influence groundwater levels. Pavement Section Design Recommendations: Based on the field DCP test results, a design CBR value of 15 was used in the pavement section analysis. The design pavement section was determined utilizing PCASE software and traffic information noted on the enclosed Design Analysis summary sheet. The following pavement section is recommended: • 2-inch NCDOT Type SF-9.5A Asphalt Concrete Surface • 8-inch NCDOT Type ABC Aggregate Base Course • 8-inch Approved Compacted Subgrade 95% ASTM D 1557 Stormwater Management System: The field saturated hydraulic conductivity value (Ksat) was calculated based on the unmodified Glover Solution. The following tabulation contains a summary of the saturated hydraulic conductivity test results. Specific information regarding the tests is presented in the attached Hydraulic Conductivity Work Sheets. Saturated Hydraulic Conductivity Test Results Test Location Test Depth feet Ksat Value inches/hour HA-3 3.3 to 5 0.318 HA-4 3.3 to 5 1.769 It should be noted that the Ksat values referenced in the table above have not been factored to account for variations in the soil horizon (i.e. water table restrictions, partially restrictive soil layers, temperature affects, etc.). As such, it is recommended that Ksat values utilized in the design of stormwater management facilities be factored accordingly. NAVFAc Mid-At/antic Geotechnical Department - P a g e 13 of 4 Geotechnical services Louis Road Parking Lot;; Marine Corps Base, Camp Leisure, North Carolina June 28, 2012 Revised July 2, 2012 Soils encountered above the SHWT. are judged to be Hydrologic Soil Group B soils per the Natural Resources Conservation Service (NRCS); Ref. Part 630 National Engineering Handbook Chapter 7 Hydrologic Groups, May 2007. Based on Table 7-2 in the noted reference, the infiltration test data, and previous experience, an infiltration rate of 1 inch/hour is recommended for design of onsite infiltration system. To facilitate infiltration, it is recommended that a minimum 6-inch thick layer of ASTM C33 sand be placed over the base of the infiltration trench. The side slopes of the infiltration trench should be stabilized with vegetation or similar (i.e. Bermuda sod, etc.). Site preparation, grading and installation for the onsite Best Management Practices (BMP) facilities should be.specified to comply with Part 6.6 of the North Carolina Division of Water Quality Stormwater Best Management Practices Manual July 2007. Earthwork Construction: The existing surficial soil materials should be completely stripped in the planned pavement area. Stripping should be perfomed to a horizontal distance of at least three feet past the pavement limits. An average stripping depth of 9 inches is anticipated. After completion of rough grading, the exposed subgrade soils should be densified using a smooth drum roller (8 ton minimum) using static compaction to improve bearing strength. Positive surface drainage to divert water away from the prepared subgrade should be maintained at all times. The exposed subgrade in the pavement area should be proofrolled to detect pockets of soft or otherwise unsuitable material. Proofrolling should be conducted after a suitable period of dry weather to avoid degrading an otherwise acceptable subgrade. A loading dump truck or similar rubber tired construction equipment should be used for proofrolling. Closure: Should you have any questions concerning this brief report, please do not hesitate to contact the MIDLANT Geotechnical Department at your earliest convenience. Respectfully, NAVFAC MIDLANT Erin K. Murphy, E.I.T. Frank A. DeMascio, M.S.P.E. Geotechnical Engineer Supervisory Geotechnical Engineer Enclosures: Site Vicinity Map Dated June 13, 2012 Field Exploration Location Plan Dated June 28, 2012 Hand Auger Boring Records HA-1, HA-2, HA-3, HA-4, Hydraulic Conductivity Worksheet for Locations HA-3 and HA-4 Dynamic Cone Penetrometer (DCP) Worksheets for HA-1 and HA-2 PCASE Pavement Design Report NA VFAC Mid -Atlantic Gootechnica/ Department Page 14 of 4 e Louis Road Parking Lot, Camp Lejeune, North Carolina Field Exploration Location Plan 1 NAVFAC MIDLANT Legend Geotechnical Engineering Department e- Approximate Location of Hand Auger Boring Prepared By: Erin Murphy 6/28/12 NAVFAC Naval Facilities Engineering Command HAND AUGER BORING RECORD Project: Louis Road Parking Lot Boring Number: Location: Camp Lejeune NC Date Drilled: JON Number: 7X5080 Driller: Depth (ft.) 7.0 f Elevation ft): HA-1(3) 06/05/2012 Singer/ DeMascio 27 Feet Approx. De th ft I'I Material Description USCS Class, Test Results / Comments Top Bot. 0.0 - 1.0 Brown, Silty Fine SAND with trace Surficial Soil organics, moist 1.0 4.0 Brown to Tan Mottled Orange, Silty Fine SM Dense to Medium Dense SAND with trace to little clay, moist 4.0 7.0(2) Tan, Fine SAND with trace silt and clay SP-SM SHWT judged to be at nodules, very moist to wet at 6 feet approx. 4 foot depth Notes: (1) Depth referenced from current ground surface (2) Boring terminated at 7 feet (3) Boring Location: Shown on attached Field Exploration Location Plan NAVFAC Mid-Atlantic•9742 Maryland Avenue- Norfolk, VA 23511-3095 NAVFAC Naval Facilities Engineering Command HAND AUGER BORING RECORD Project: Louis Road Parking Lot Boring Number: HA-2(3) Location: Camp Lejeune NC Date Drilled: 06/05/2012 JON Number: 7X5080 Driller: Singer/ DeMascio Depth (ft.) 7 t Elevation (ft.): 27 Feet Approx. • De th ft (') Material Description usCs Class, Test Results / Comments Top Bot. 0.0 0.5 Brown, Silty Fine SAND with trace gravel Surficial Soil, and organics, moist 0.5 2.5 Brown to Tan, Silty Fine SAND with trace SM clay, moist Dense to Medium Dense Tan to Tan Mottled Orange, Fine SAND SHWT judged to be at 2.5 (2) 7 with trace silt and clay lenses, moist to SP-SM approx.4 foot depth wet at 6 feet Notes: (1) Depth referenced from current ground surface (2) Boring terminated at 7 feet (3) Boring Location: Shown on attached Field Exploration Location Plan NAVFAC Mid-Atlantic•9742 Maryland Avenue- Norfolk, VA 23511-3095 Project: Location: JON Number: Depth (ft.) HAND Louis Road Camp Lejeune NC 7X5080 6f NPfFAC Naval Facilities Engineering Command GER BORING RECORD Lot Boring Number: HA-V) Date Drilled: 6-25-12 Driller: J. Sinoer Elevation ft): 27 Dept ft)('I USCS Top I Bot. Material Description Class. Test Results / Comments 0 1 Dark Brown, Silty Fline SAND with traces Surflcial Soil of organics Tan Mottled Orange , Silty Fine SAND 1 3.75 with trace clay, moii,st SM 3.75 5 (3) Light Tan, Fine SAND with some silt and SM-SC Estimated Field Ksat at clay nodules, moist to very wet 3.3 to 5 ft. = 0.318 in/hr t4I Notes: (1) Depth referenced from cu (2) Refer to Field Exploration (3) Boring advanced to 4 ft. advanced within the casir (4) Unfactored test result. ant ground surface. )cation for boring location. nd well screen installed. Casing interior was then cleaned and boring to a depth of 5 ft. and backfilled to 4 ft. with No.2 well sand. NAVFAC Mid-Atlantic•9742 Maryland Avenue- MR05 mmand HAND AUGER BORING RECORD Project: Louis Road Parking Lot Location: Camp Lejeune, NC JON Number: 7X5080 Depth (ft.) 5 t Boring Number: Date Drilled: HA-4(z) 6/25/12 Driller: J. Singer Elevation (ft.): 27 Depth (ft.)(') USCS Top I Bot. Material Description Class Test Results / Comments 0 0.5 Brown, Silty Fine SAND with trace Surficial Soil organics, moist 0.5 2.5 Brown to Tan, Silty Fine SAND with SM traces of clay, Moist Tan to Light Gray Mottled Orange, Fine Estimated Field Ksat at 2.5 5(3) SAND with traces of silt and clay SP-SM (4) 3.3 to 5 ft. = 1.769 in/hr nodules, moist to very moist Notes: (1) Depth referenced from current ground surface. (2) Refer to Field Exploration Location for boring location. (3) Boring advanced to 4 ft, and well screen installed. Casing interior was then cleaned and boring advanced within the casing to a depth of 5 ft. and backfilled to 4 ft. with No.2 well sand. (4) Unfactored test result. NAVFAC Mid-Atlantic•9742 Maryland Avenue- Norfolk, VA 23511-3095 SATURATED HYDRAULIC CONDUCTIVITY WORKSHEET Sheet No.: 1 of 1 Project Name.: Louis Road POV Parking Location......: MCB Camp Lejeune, NC Terminology and Solution Boring No......: HA-3 I Date ............: 6/25/12 Ksat : Saturated hydraulic conductivity Investigators.: J. Singer IFile Name........ Q: Steady-state rate of water flow into the soil Boring Depth.: - 122 cm WCU Base. Ht. 5.4 cm H: Constant height of water in borehole Boring Dia..... : 10.2 cm _ WCU Susp. Ht. 15.2 cm r: Radius of cylindrical borehole Boring Rad. (r): 5.08 cm I Const. Wtr. Ht. 20.6 cm Ksat = Q[sinh-1(H/r) - (r2/H2+1),5 +, r/H] / (2piH2) [Glover, R. E.] VOLUME (ml) Volume Out (ml) (a) TIME (hr:min:sec alp) Elapsed Time Flow Rate Q (ml/min) [alb] -------- ---------- Ksat Equivalent Values ---- ------- --- (hr:min:sec) (min) [b] (cm/min) (cm/sec) (cm/day) (inlhr) (ft/day) 1700 5:16:30 PM 1600 -100- -5:22:15-PM- -0:05:45- -5.75- -1.7.39_ _0.009 1.44E-04 12.4 0.204 0.41 1500 100 5:25:45 PM 0:03:30 3.50 28.57 0.014 2.36E-04 20.4 0.334 0.67 1360 140 53005 PM 0:04:20 4.33 32.31 0.016 2.67E-04 23.0 0.378 0.76 1300 60 5:32:45 PM 0*02:40 2.67 22.50 0.011 1.86E-04 16.1 0.263 0.53 1150 150 5:36:10 PM 0:03:25 3.42 43.90 0.022 3.63E-04 31.3 1 0.514 1.03 1100 50 5:39:05 PM 0:02:55 2.92 17.14 0.008 1.42E-04 12.2 0.201 0A0 1000 100 5:43:30 PM 00425 4.42 22.64 0.011 1.87E-04 16.2 0.265 0.53 900 100 5:46:50 PM 0,0320 3.33 30.00 0.015 2.48E-04 21.4 0.351 0.70 800 100 5:50:30 PM 0:03:40 3.67 27.27 0.014 2.25E-04 19.5 0.319 0.64 690 110 5:54:20 PM 0:03:50 3.83 28.70 0.014 2.37E-04 20.5 0.336 0.67 560 130 5:58:50 PM 0:04:30 4.50 28.89 0.014 2.39E-04 20.6 0.338 0.68 490 70 6:01:30 PM 0:02:40 2.67 26.25 0.013 2.17E-04 18.7 0.307 0.61 350 140 6:06:30PM 0:05:00 5.00 28.00 0.014 2.31E-04 20.0 0.328 0.66 Natural Moisture: -- ESTIMATED FIELD Ksat..:1 0.013 0.000 1 19.372 0.318 0.64 Texture/Classif: SM-SC Notes: File: KsatWKS.xls (Unmodified Glover Solution) Johnson Permeameter '"' End SATURATED HYDRAULIC CONDUCTIVITY WORKSHEET Sheet No.: 1 of 1 Project Name.: Louis Road POV Parking Location......: MCB Camp Lejeune, NC Terminology and Solution Boring No......: HA-4 Date ............: 6/25/12 Ksat : Saturated hydraulic conductivity Investigators.: J. Singer File Name........ Q: Steady-state rate of water flow into the soil Boring Depth.: 122 cm WCU Base. Ht. 5.4 cm H: Constant height of water in borehole Boring Dia..... : 10.2 cm JWCU Susp. Ht. 15.2 cm r: Radius of cylindrical borehole Boring Rad. (r): 5.08 cm lConst. Wtr. Ht. 20.6 cm Ksat = Q[sinh-1(H/r) - (r2/H2+1) s + r/H] / (2piH2) [Glover, R. E.] VOLUME (ml) Volume Out (ml) [a] TIME (hr:min:sec alp) Elapsed Time Flow Rate Q (mllmin) [alb] ---- Ksat Equivalent Values------- (hr:min :see) (min) [b] (cm/min) (cm/sec) (cm/day) (in/hr) (ft/day) 3200 4:50+30 PM 3100 100 4:50:45 PM 0:00:15 0.25 400.00 0.198 3.30E-03 285.4 4.681 9.36 3000 100 4:51:15 PM 0:00:30 0.50 200.00 0.099 1.65E-03 142.7 2.341 4.68 2900 100 4:51:50 PM 00035 0.58 171.43 0.085 1.42E-03 122.3 2.006 4.01 2800 100 4:52:30 PM 00040 0.67 150.00 0.074 1.24E-03 107.0 1.756 3.51 2700 100 4:53:00 PM 0:00:30 0.50 200.00 0.099 1.65E-03 142.7 2.341 4.68 2600 100 4:53:45 PM 0:00:451 0.75 133.33 0.066 1.10E-03 95A 1.560 3.12 2500 100 4:54:15 PM 00030 0.50 200.00 0.099 1.65E-03 142.7 2.341 4.68 2400 100 4:54+55 PM 00040 0.67 150.00 0.074 1.24E-03 107.0 1.756 3.51 2300 100 4:55:30 PM 0:00:35 0.58 171.43 0.085 1.42E-03 122.3 2.006 4.01 2200 100 4:56:10 PM 0:00:40 0.67 150.00 0.074 1.24E-03 107.0 1.756 3.51 2100 100 4:56:45 PM 00035 0.58 171.43 0.0851 1.42E-03 122.31 2.006 4.01 2000 100 4:57:30 PM 0:00:45 0.75 133.33 0.066 1.10E-03 95.1 1.560 3.12 1900 100 4:58:10 PM 0:00:401 0.67 150.00 0.074 1.24E-03 107.0 1.756 3.51 1800 100 4:58:45 PM 00035 0.58 171.43 0.085 1.42E-03 122.3 2.006 4.01 1700 100 4:59+20 PM 00035 0.58 171.43 0.085 1.42E-03 122.3 2.0061 4.01 16001 100 5:00:00 PM 00040 0.671 150.00 0.074 1.24E-03 107.0 1.7561 3.51 1500 • 100 5:00:45 PM 0:00:45 0.751 133.33 0.066 1.10E-03 95.1 1.5601 3.12 14001 100 5:01:25 PM 0:00:40 0.671 150.001 0.0741 1.24E-031 107.0 1.7561 3.51 Natural Moisture: --- ESTIMATED FIELD Ksat..:l 0.075 0.001 107+865 1.769 3.54 Texture/Classif: SP-SM Notes: File: KsatWKS.xls (Unmodified Glover Solution) Johnson Permeameter "" DCP TEST DATA File Name: HA-1 Project: Louis Road Parking Lot Date: 5-Jun-12 Location: Camp Lejeune, NC Soil Type(s): SM Hammer Sal TY O 10.1 ms: O a V.b las. Oa O Bah hammers uieG o'All O er B 11 No. of Accumulative Type of CBR Blows Penetration Hammer 7 10 100 (mm) p 0 1 3 1 8 1 50 20 2 _ 25 _ —.._._..29 _._ _ .._� _- . - 3 — — — 1 37_ 1 —� 1_-. 42 1 a 100 E 1 a7 E — _ ____�____ _ 52 1 5 2 1 -- -- 60_... 1. _.1 0. w a. 150 1 65 1 6 O 7 1 76 _ _.__ _-..___________—___—_ 200 _ 1 1 93 9 _...... 1....... .. 6 1 250 10 1 11 6 1 1 10 100 _ 1 __—. _ 1211-- , -127 i, _ 1 Notes: Test was performed at a starting depth of 6 inches below existing grade _ _ 1 133 i _ See Field Exploration Location Plan. _ 1 149 I 1 ij 154 __ _-__-159—_� 1 164 168 --1 .....__................._.___...._...._t.__--___ . 1 181 1 1 I ,91 1 T-- 196 ---_' -- 202 , 1 214 ---_-226 1 1 1 236 DCP TEST DATA File Name: HA-2 Project: Louis Road Parking Lot Date: 5-Jun-12 Location: Camp Lejenue, NC Soil Type(s): SM Hammer S IType 0101 O CH ll.60 CL L'. O Bah e- All Omer sots No. of Accumulative Type of CHR Blows Penetration Hammer (mm) 1 10 100 0 0 1 20 1 1 35 --__ 45 __ 1 _ ___-60— 1 2 60 1 65 1 -__ 100 4 1 85 1 ` _ E 150 M i —1 1 ._.. _'._... —___- _ so ----------- — 100 - 1 _ 105._. I. _.... _. _.. .. —123 ---1 --- a 6 0. 1 8 200 _ 1 129 _— 1 � 1 1. ____137.__ ___1 1 144 1 _.____.______________- I I 250 10 154 1 160 1 1 166 1 12 300 90 1 177 1 1 164 1 Notes: Test started at existing ground surface. See Field Exploration Location Plan 1 189 1 1 __.._..-..... ...... 194 �-- 1 _ .... ......._.____._.:_...___._._._ 1 ----- _----- 200 1 -------- __.._-_. ---------- 1 ._._.._.--- ._...__..._.._.._...._.._.._... 206 1 _L. .. .............. 1 212 _ � 1 223 1 1 ..... ... ... ..._..._....__._.._. 231 1 236 1 1 1 240 1 _— 1 _ -- 246 _-_250 _ 1 1 259 265 1 276 DESIGN❑ PRELMINARY SHEET NO: OF: 1 Novnl PncStgs Ergnoervip Corrvrbntl ANALYSIS ❑ ❑ FINAL OTHER J03NO 7X5080 PROJECT NAME: Louis Road Parking Lot, Camp Lejeune, NC DEPARTMENT GEO SHEET NO OF: PROJECT PART: COMPUTED BY: DATE: Light Duty Flexible Pavement Design Erin Murphy 6/18/2012 SPEC. DIVISION'. CHECKED BY: DATE: 1 Frank DeMascio 6/18/2012 Design Parameters and Assumptions: PCASE Soil Parameters Subgrade Design CBR Value = 15 Natural subgrade soils are cohesionless cut PCASE Concrete Flexible Pavement Parameters Surface Asphalt Dry Unit Weight = 145 pcf; Base Equivalency Factor of 1.15 ABC Stone Aggregate Base Material Dry Unit Weight = 135 PCF; Base Equivalency Factor of 1.0 PCASE Traffic Information (Conservative Estimate): No. Cars Trips/day Days/week Weeks/yr Deign Life (yrs) Total Passes 20 2 7 52 20 291200 No.Trucks Trips/day Days/week Weeks/yr Deign Life (yrs) Total Passes 20 2 7 52 20 291200 Light Duty Flexible Pavement Design Recommendations: Light Duty Flexible Pavement Section 2" NCDOT Type SF-9.5A Hot Mix Asphalt 8" of ABC Aggregate Base Material Stable Subgrade Design Name: LOUIS RD POV Design Type: Roads Pavement Type: Flexible Traffic Area : N/A Road Type: Parking Terrain Type : Flat Analysis Type: CBR Depth of Frost (in) : 4 SCI: 0 Wander Width (in) : 33.35 % Load Transfer: 0 Effective K (pci) Reduced Sub Effective K (pci) Layers Count Seasons Count Joint Spacing Dowel Spacing Dowel Length Dowel Diameter: 0 Pavement Design Report U.S. Army Corps of Engineers PCASE Version 2.09 Date: 6/19112 Dry Flexural Minimum Layer Type Material Type Frost Code Moisture Content Weight Density Strength CrCb % Steel Analysis Thickness (Iblcu ft) (lb/cu ft) (psi) (in) Asphalt Asphalt N/A 0 145 0 0 0 0 Compute 2 Base Unbound Crushed N/A 5 135 0 0 0 0 Manual 4 Stone Natural Sub rade Cohesionless Cut F3/F4 18 110 0 0 0 0 N/A 0 Pattern Name: AnalysisType : Pavement Type Subgrade Category Traffic Area Traffic Count AUTOMOBILE PARKING LOT Mixed Flexible CAT D Area A Vehicles Wei ht (lb) Passes per Life Span Equivalent Passes CAR-PASSENGERI 30001 2912001 17 TRUCK, LG. PICKUP OR SUVI 75001 2912001 291200 Equivalent Single Wheel Loads 1 209 _ Pavement Design Report U.S. Army Corps of Engineers _ PCASE Version 2.09 Date: 6/19/12 Required Non frost Equivalent Reduced Limited Base Subbase Thickness Design Thickness Subgrade Subgrade Calculate at Equivalency Equivalency CBR Modulus Pr Slip (in) Above Thickness (in) Strength Penetration this Depth factor Factor Strength (psi) 0 2 2 2 2 No 1.15 2.3 0 ' 0 8 10 8 8 NW 1 1 50 7.58 0 0 0 0 No 1 1 15 FINANCIAL RESPONSIBILITY/OWNERSHIP FORM SEDIMENTATION POLLUTION CONTROL ACT No person may initiate any land -disturbing activity on one or more acres as covered by the Act before this form and an acceptable erosion and sedimentation control plan have been completed and approved by the Land Quality Section, N.C. Department of Environment and Natural Resources. (Please type or print and, if the question is not applicable or the e-mail and/or fax information unavailable, place N/A in the blank.) Part A. 1. Project Name Louis Road Parking Lot, MCB Camp Leieune. NC (Previous Project: Hadnot Point Road Improvements, ONSLO-2011-123) 2. Location of land -disturbing activity: County Onslow City or Township Jacksonville Highway/Street Louis Road Latitude 34.5962 Longitude 77.2825 3. Approximate date land -disturbing activity will commence: October 2012 4. Purpose of development (residential, commercial, industrial, institutional, etc.): Parking Lot, Military 5. Total acreage disturbed or uncovered (including off -site borrow and waste areas): 0.88 6. Amount of fee enclosed: $ 65.00 The application fee of $65.00 per acre (rounded up to the next acre) is assessed without a ceiling amount (Example: a 9-acre application fee is $585). 7. Has an erosion and sediment control plan been filed? Yes No Enclosed X 8. Person to contact should erosion and sediment control issues arise during land -disturbing activity: Name Carl Baker Telephone (910) 451-2213 ext 264 Cell # E-mail Address carl.h.bakero)usmc.mil Fax # 9. Landowner(s) of Record (attach accompanied page to list additional owners): MCB Camp Leieune Name 1005 Michael Rd Current Mailing Address relephone Current Street Address Fax Number Camp Leieune NC 28457 City State Zip City State Zip 10. Deed Book No. Page No. Provide a copy of the most current deed. Part B. Person(s) or firm(s) who are financially responsible for the land -disturbing activity (Provide a comprehensive list of all responsible parties on an attached sheet): Carl Baker Name 1005 Michael Rd Current Mailing Address Camp Leieune NC 28457 City State Zip Telephone (910) 451-2213 ext 264 E-mail Address Current Street Address City Fax Number State Zip Hydrograph Return Period Rep y ra ow Hydrograph, Extension for AutoCAD® Civil 3DO 2010 by Autodesk, Inc. v9.25 Hyd. Hydrograph Inflow Peak Outflow(cfs) Hydrograph No. type hyd(s) Description (origin) 1-yr 2-yr 3-yr 5-yr 10-yr 25-yr 50-yr 100-yr 1 SCS Runoff ------ OA08 ------- ------- ------- 2.347 ------- ------- ------- 0.88 Ac Pre-Dev - 2 Reservoir 1 0.000 ------- ------- ------- 0.000 ------- ------- - ----- <no description> SC 0 �Y DEC 14 2012 By: _ Proj. file: D:\Documents and Settings\michael.insetta\Desktop\Louis Road -Pon 11W4dtk,0 gpv✓2012 Hydrograph Summary Report Hydraflow, Hydrographs Extension for AutoCAD®Civil 3D®2010 by Aulodesk, Inc. v9.25 Hyd. No. Hydrograph type (origin) Peak flow (cfs) Time interval (min) Time to Peak (min) Hyd. volume (cuft) Inflow hyd(s) Maximum elevation (ft) Total strge used (cuft) Hydrograph Description 1 SCS Runoff 0.408 2 726 1,722 ------ ------ ------ 0.88 Ac Pre-Dev 2 Reservoir 0,000 2 n/a 0 1 0.00 0.000 <no description> DADocuments and Settings\nnichael.insetta\ d ktc0Ubai®@oEtYgxrnd_10.11.121Wre4(ay, Oct 11, 2012 Hydrograph Report 3 Hydraflow Hydrographs Extension for AutoCAD® Civil 3DO 2010 by Autodesk, Inc. v9.25 Thursday, Oct 11, 2012 Hyd. No. 1 0.88 Ac Pre-Dev Hydrograph type = SCS Runoff Peak discharge = 0.408 cfs Storm frequency = 1 yrs Time to peak = 12.10 hrs Time interval = 2 min Hyd. volume = 1,722 cult Drainage area = 0.880 ac Curve number = 60` Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 5.00 min Total precip. = 3.60 in Distribution = Type III Storm duration = 24 hrs Shape factor = 484 Composite (Area/CN) = t (0.880 x 60)J 10.880 0.88 Ac Pre-Dev Hyd. No. 1 -- 1 Year Q (Cfs) 0 2 4 Hyd No. 1 Hydrograph Summary Report Hydraflow, Hydrograp hs Extension for AutoCAD® Civil 3D® 2010 by Aulodesk, Inc. v9.25 Hyd. No. Hydrograph type (origin) Peak flow (cfs) Time interval (min) Time to Peak (min) Hyd. volume (cult) Inflow hyd(s) Maximum elevation (ft) Total strge used (cuft) Hydrograph Description 1 SCS Runoff 2,347 2 724 7,251 ------ ------ ------ 0.88 Ac Pre-Dev 2 Reservoir 0.000 2 nla 0 1 0.00 0.000 <no description> D:\Documents and Settings\michael.insetta\rEWRtD0LftirbE1DW)JEmd_10.11.121Rfesj#iy, Oct 11, 2012 5 Hydrograph Report Hydraflow Hydrographs Extension for AutoCADO Civil 3DO 2010 by Autodesk, Inc. v9.25 Thursday, Oct 11, 2012 Hyd. No. 1 0.88 Ac Pre-Dev Hydrograph type = SCS Runoff Peak discharge = 2.347 cfs Storm frequency = 10 yrs Time to peak = 12.07 hrs Time interval = 2 min Hyd. volume = 7,251 tuft Drainage area = 0.880 ac Curve number = 60' Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 5.00 min Total precip. = 6.74 in Distribution = Type III Storm duration = 24 hrs Shape factor = 484 Composite (Area/CN) = + (0.880 x 60)) / 0.880 Q (Cfs) 3.00 elm 0.00 ' 0 2 4 — Hyd No. 1 6 8 0.88 Ac Pre-Dev Hyd. No. 1 -- 10 Year Q (Cfs) 3.00 2.00 1.00 I J I I I I I -�- 1 0.00 10 12 14 16 18 20 22 24 26 Time (hrs) 0 Hydraflow Rainfall Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D®2010 by Autodesk, Inc. v9.25 Thursday, Oct 11, 2012 Return Period Intensity -Duration -Frequency Equation Coefficients (FHA) (Yrs) B D E (N/A) 1 74.7826 12.6000 0.8872 -------- 2 82.2689 12,4000 0.8657 -------- 3 0.0000 0.0000 0.0000 -------- 5 90.7374 12.9000 0.8393 -------- 10 88.6617 12.3000 0.8014 -------- 25 80.0794 11.1000 0.7416 -------- 50 75.8521 10.4000 0.7031 -------- 100 68.8855 9.3000 0.6572 -------- File name: Jacksonville.IDF Intensity = B / (Tc + D)^E Return Period Intensity Values (in/hr) (Yrs) 5 min 10 15 20 25 30 35 40 45 50 55 60 a 1 5.87 4.70 3.94 3.40 2.99 2.68 2.43 2.22 2.05 1.90 1.78 1.67 2 6.94 5.58 4.68 4.05 3.58 3.21 2.91 2.67 2,47 2.30 2.15 2.02 3 0,00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5 8.06 6.55 5.55 4.84 4.29 3.87 3.53 3.25 3.01 2.81 2.63 2.48 10 9.03 7.37 6.26 5.47 4.88 4.41 4.03 3.72 3.46 3.23 3,04 2.87 25 10.20 8.35 7.13 6.26 5.60 5.09 4.67 4.33 4.04 3.79 3.58 3.39 50 11,09 9.10 7.80 6.88 6.18 5,63 5.19 4.82 4.51 4.24 4.01 3.81 100 11.99 9.85 8.46 7.48 6.75 6.17 5.70 5.32 4.99 4.71 4A6 4.25 Tc = time in minutes. Values may exceed 60, Precip. file name: O:\NC IPT NUCLEUS\!Civil\Hvdraflow\IDF\Havelock24hprecipdepth.pcp Rainfall Precipitation Table (in) Storm Distribution 1-yr 2-yr 3-yr 5-yr 10-yr 25-yr 50-yr 100-yr SCS 24-hour 3.60 4.36 0.00 0.00 6.74 0.00 9.71 11.20 SCS 6-Hr 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Huff-1 sl 0.00 0.00 0.00 0.00 0.00 0,00 0.00 0.00 Huff-2nd 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Huff-3rd 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Huff-4th 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Huff-Indy 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Custom 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 P-1265 Drainage BMP sizing Determine if proposed BMP is adequate 10,11.12 Forebays Forebays to be 20%of total volume of permanent pool current forebav A 1335.50 cf Allowable increase in forebay Drain area = PP Vol E 6069 22.00 AS Mr 38490 s.f. 0.88 For 90% removal of TSS To find 5A of PP SA/DA MUST BE BE A MINIMUM OF 2.7% (Note: Sa/DA shown in Table 10-4 to be based on 3 avg depth and 34.35%imp.) Depth Avg = 4.02 ft Drain Area = 38490 sf IA = 34.35 % SA MIN. OF 1732.1 Required Storage Volume:(For Water quality -Using Treated Area) Area= 0.883609 Simple Rv=0.05.0.9(imp) Imp= 0.312213 Rv= 0.368 V1.5= 3630'1.5'Rv'A V3.5 = 1771 c.f. 0 x 0.35 FOaesav 36C 99 POND Combined Storage Temp Storage oP 1951 lo,I 1155 Silo 61160 1601 1811 POND AVERAGE DEPTH CALCULATOR _r r „r_,r�,rj 11 r frR_,.trry.nw_r.,,,,.r Depllr Option011 Cl 0._2-�x I+AAre + +A)X( A 1", Pool l _ hog sholf Depth 4.5 A(bot_shelf) 1594 A(perm_pool) 2607 A(bot_pond) 968 d(avg) 4.02 Hydrograph Return Period Rep y ra ow Hydrographs Extension for AutoCAD® Civil 3DO 2010 by Aulodesk, Inc. v9.25 Hyd. Hydrograph Inflow Peak Outflow lets) Hydrograph No. type hyd(s) Description (origin) 1-yr 2-yr 3-yr 5-yr 10-yr 25-yr 50-yr 100-yr 1 SCS Runoff ------ 1.202 1.767 ------- ------- 3.720 ------- ------- 7.619 0.88 Ac Post-Dev 2 Reservoir 1 0.067 0.159 ------- ------- 1.369 ------- ------- 4.851 <no description> 1 Pro. file: Louis Road_pond_9.19.12.gpvv Thursday, Oct 11, 2012 Hydrograph Summary Report Hydraflow Hydrographs Extension for AutoCAD®Civil 3D®2010 by Aulodesk, Inc. v9.25 Hyd. No. Hydrograph type (origin) Peak flow (cfs) Time interval (min) Time to Peak (min) Hyd. volume (cult) Inflow hyd(s) Maximum elevation (ft) Total strge used (cuft) Hydrograph Description 1 SCS Runoff 1.202 2 724 3,735 ------ ------ ------ 0.88 Ac Post-Dev 2 Reservoir 0.067 2 912 3,546 1 26.65 2,278 <no description> Louis Road_pond_9.19.12.gpw Return Period: 1 Year Thursday, Oct 11, 2012 3 Hydrograph Report Hydraflow Hydrographs Extension for AUloCAD® Civil 3D® 2010 by Autodesk, Inc. v9.25 Thursday, Oct 11, 2012 Hyd. No. 1 0.88 Ac Post-Dev Hydrograph type = SCS Runoff Peak discharge = 1.202 cfs Storm frequency = 1 yrs Time to peak = 724 min Time interval = 2 min Hyd. volume = 3,735 cuft Drainage area = 0.880 ac Curve number = 73* Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 5.00 min Total precip. = 3.60 in Distribution = Type III Storm duration = 24 hrs Shape factor = 484 Composite (Area/CN) = [(0.310 x 98) + (0.570 x 60)] / 0.880 Q (cfs) 2.00 Div 0.00 0 120 240 — Hyd No. 1 0.88 Ac Post-Dev Hyd..No. 1 -- 1 Year 360 480 600 720 840 Q (Cfs) 2.00 1.00 a T — 0.00 960 1080 1200 1320 1440 1560 Time (min) n Hydrograph Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3DO 2010 by Aulodesk, Inc. v9.25 Thursday, Oct 11, 2012 Hyd. No. 2 <no description> Hydrograph type = Reservoir Peak discharge = 0.067 cfs Storm frequency = 1 yrs Time to peak = 912 min Time interval = 2 min Hyd. volume = 3,546 cuft Inflow hyd. No. = 1 - 0.88 Ac Post-Dev Max. Elevation = 26.65 ft Reservoir name = LOUIS ROAD POND Max. Storage = 2,278 cuft Storage Indication method used. Q (cfs) 2.00 1.00 0.00 1 "'W 0 600 — Hyd No. 2 <no description> Hyd. No. 2 -- 1 Year 1200 1800 2400 — Hyd No. 1 3000 3600 4200 4800 5400 FM Total storage used = 2,278 cult Q (cfs) 2.00 1.00 1 0.00 6000 Time (min) Pond Report 5 Hydrafiow Hydrographs Extension for AutoCAD® Civil 3DO 2010 by Autodesk, Inc. v9.25 Thursday, Oct 11, 2012 Pond No. 1 - LOUIS ROAD POND Pond Data Contours -User-defined contour areas. Average end area method used for volume calculation. Begining Elevation = 26.00 It Stage / Storage Table Stage (ft) Elevation (ft) Contour area (sqft) Incr. Storage (cuft) Total storage (cuft) 0.00 26.00 2,607 0 0 . 0.50 26.50 3.796 1,601 1,601 0.55 26.55 4,625 211 1,811 1.00 27.00 4,385 2,027 3,839 1.50 27.50 4,800 2.296 6,135 2.50 28.50 5,787 5,294 11,428 Culvert / Orifice Structures Weir Structures [A] [B] [C] [PrfRsr] [A] [B] [C] [D] Rise (in) = 15.00 0.75 Inactive Inactive Crest Len (ft) = 0.50 8.00 Inactive Inactive Span (in) = 15.00 0.75 0.00 0.00 Crest El. (ft) = 26.55 27.05 0.00 0.00 No. Barrels = 10 10 0 0 Weir Coeff. = 3.330.00 3.33 3.33 3.33 Invert El. (ft) = 26.00 26.00 0.00 0.00 Weir Type = Rect Rect --- Length (ft) = 30.00 0.50 0.00 0.00 Multi -Stage = Yes Yes No No Slope (%) = 1.00 0.00 0.00 n/a N-Value = .013 .013 .013 n/a Orifice Coeff. = 0.60 0.60 0.60 • 0.60 Exfil.(in/hr) = 0 (by Wet area) Multi -Stage = n/a Yes No No TW Elev. (ft) = 0.00 Note'. CulveNOnfice outflows are analyzed under inlet gc) and outlet (cc) control. Weir nears checked for orifice conditions (ic) and submergence (a). Stage I Storage I Discharge Table Stage Storage Elevation Clv A Clv B Clv C PrfRsr Wr A Wr B Wr C Wr D Exfil User Total It cuft it cfs cfs cfs cfs cfs cfs cfs cfs cfs cfs cfs 0.00 0 26.00 0.00 0.00 --- --- 0.00 0.00 --- --- --- --- 0.000 0.05 160 26.05 0.00 is 0.00 is --- --- 0.00 0.00 --- --- --- --- 0.002 0.10 320 26.10 0.00 is 0.00 is --- --- 0,00 0.00 --- --- --- --- 0.004 0.15 480 26.15 0.01 is 0.01 is --- --- 0.00 0.00 --- --- --- --- 0.005 0.20 640 26.20 0.01 is 0.01 is --- --- 0.00 0.00 --- --- --- --- 0.006 0.25 800 26.25 0.01 is 0.01 is --- --- 0.00 0.00 --- --- --- --- 0.007 0.30 960 26.30 0.01 is 0.01 is --- --- 0.00 0.00 --- --- --- --- 0.008 0.35 1,121 26.35 0.01 is 0.01 is --- --- 0.00 0.00 --- --- --- --- 0,008 0.40 1,281 26.40 0.01 is 0.01 is --- 0.00 0.00 --- --- --- 0.009 0.45 1,441 26.45 0.01 is 0.01 is --- --- 0.00 0.00 --- --- --- --- 0.009 0.50 1,601 26.50 0.01 is 0.01 is --- --- 0.00 0.00 --- --- --- --- 0,010 0.50 1,622 26.51 0.01 is 0.01 is --- --- 0.00 0.00 --- --- --- --- 0.010 0,51 1,643 26.51 0.01 is 0.01 is --- --- 0.00 0.00 --- --- --- --- 0.010 0.51 1,664 26.52 0.01 is 0.01 is --- --- 0.00 0.00 --- --- --- --- -0.010 0.52 1,685 26.52 0.01 is 0.01 is --- --- 0.00 0.00 --- --- --- --- 0.010 0.52 1,706 26.53 0.01 is 0.01 is --- --- 0.00 0.00 --- --- . --- --- 0.010 0.53 1.727 26.53 0.01 is 0.01 is --- --- 0.00 0.00 --- --- --- --- 0.010 0.53 1,748 26.53 0,01 is 0.01 is --- --- 0.00 0.00 --- --- --- --- 0.010 0.54 1,769 26.54 0.01 is 0.01 io --- --- 0.00 0.00 --- --- --- --- 0.010 0.54 1,790 26.54 0.01 is 0.01 is --- --- 0.00 0.00 --- --- --- --- 0.010 0.55 1,811 26.55 0.01 is 0.01 is --- --- 0.00 0.00 --- --- --- --- 0.011 0.59 2,014 26.60 0.03 is 0.01 is --- --- 0.02 0.00 --- --- --- --- 0.027 0.64 2,217 26.64 0.06 is 0.01 is --- --- 0.04 0.00 --- --- --- --- 0.056 0.68 2,419 26.69 0.10 is 0.01 is --- --- 0.08 0.00 --- --- --- --- 0.094 0.73 2,622 26.73 0.14 is 0.01 is --- --- 0.13 0.00 --- --- --- --- 0.138 0.77 2,825 26.78 0.20 is 0.01 is --- --- 0.18 0.00 --- --- --- --- 0.189 0.82 3,028 26.82 0.25 is 0.01 is --- 0.23 0.00 --- --- --- --- 0.245 0.86 3,230 26.87 0.31 is 0.01 is --- --- 0.29 0.00 --- --- --- --- 0.306 0.91 3.433 26.91 0.37 is 0.01 is --- 0.36 0.00 --- --- --- --- 0.371 0.95 3,636 26.96 0.46 is 0.01 is --- --- 0.43 0.00 --- --- --- --- 0.441 1.00 3.839 27.00 0.53 is 0.01 iC --- --- 0.50 0,00 --- --- --- --- 0.515 1.05 4.068 2T05 0.61 is 0.01 is --- --- 0.59 0.00 --- --- --- --- 0.601 1.10 4,298 27.10 1.01 is 0.01 is --- --- 0.68 0.30 --- --- --- --- 0.989 1.15 4,527 27.15 1.64 is 0.01 is --- --- 0.76 s 0.84 --- --- --- --- 1.616 1.20 4.757 27.20 2.36 is 0.01 io --- --- 0.81 s 1.55 --- --- --- --- 2.363 1.25 4,987 27.25 3.17 oc 0.01 is --- --- 0.77 s 2.38 --- --- --- --- 3.159 1.30 5.216 27.30 3.63 cc 0.01 is --- --- 0.66 s 2.96 s --- --- --- --- 3.628 Continues on next page... 3 LOUIS ROAD POND Stage / Storage / Discharge Table Stage Storage Elevation Clv A ft Cuft ft Cfs 1.35 5,446 27.35 3.71 oc 1.40 5,676 27.40 -'4.08 oc 1.45 5,905 27A5 4.40 oc 1.50 6,135 27.50 4.69 oc 1,60 6,664 27.60 5.20 oc 1.70 7,193 27.70 5.64 oc 1.80 7,723 27.80 6.04 oc 1.90 8,252 27.90 6.41 oc 2.00 8,782 28.00 6.76 oc 2.10 9,311 28.10 7.09 oc 2.20 9,840 28.20 7.38 is 2.30 10,370 28.30 7.62 is 2.40 10,899 28.40 T85 iC 2.50 11.428 28.50 8.07 is ...End Clv B Clv C PrfRsr Wr A Wr B Wr c MID Exfil User Total Cfs Cfs Cfs Cfs Cfs Cfs Cfs Cfs cis Cfs 0.00 is --- --- 0.59 s 3.11 s --- --- --- --- 3.707 0.00 is --- --- 0.59 s 3.48 s --- --- --- --- 4.075 0.00 iC --- --- 0.59 s 3.80 s --- --- --- --- 4.397 0.00 is --- --- 0.59 s 4.09 s --- --- --- --- 4.687 0.00 is --- --- 0.59 s 4.60 s --- --- --- --- 5,193 0.00 is --- --- 0.60 s 5.04 s --- --- --- --- 5.638 0.00 is --- --- 0.60 s 5.43 s --- --- --- --- 6.037 0.00 is --- --- 0.61 s 5.80 s --- --- --- --- 6.412 0.00 is --- --- 0.62 s 6.14 s --- --- --- --- 6.760 0.00 is --- --- 0.62 s 6.45 s --- --- --- --- 7,075 0.00 is --- --- 0.63 s 6.75 s --- --- --- --- 7,379 0.00 is --- --- 0.63 s 6.98 s --- --- . --- --- 7.615 0.00 is --- --- 0.64 s 7A 8 s --- --- --- --- 7.819 0.00 is --- --- 0.64 s 7.41 s --- --- --- --- 8.052 Hydrograph Summary Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2010 by Autodesk, Inc. v9.25 Hyd. No. Hydrograph type (origin) Peak flow (cfs) Time interval (min) Time to Peak (min) Hyd. volume (cult) Inflow hyd(s) Maximum elevation (ft) Total strge used (cuft) Hydrograph Description 1 SCS Runoff 1.767 2 724 5,363 ------ ------ ------ 0.88 Ac Post-Dev 2 Reservoir 0.159 2 798 5.169 1 26.75 2,706 <no description> Louis Road_pond_9.19.12.gpw Return Period: 2 Year Thursday, Oct 11, 2012 r] Hydrograph Report Hydrallow Hydrographs Extension for AutoCAD® Civil 3130 2010 by Autodesk, Inc. v9.25 Thursday, Oct 11, 2012 Hyd. No. 1 0.88 Ac Post-Dev Hydrograph type = SCS Runoff Peak discharge = 1.767 cfs Storm frequency = 2 yrs Time to peak = 724 min Time interval = 2 min Hyd. volume = 5,363 cuft Drainage area = 0.880 ac Curve number = 73' Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conic. (Tc) = 5.00 min Total precip. = 4.36 in Distribution = Type III Storm duration = 24 hrs Shape factor = 484 Composite (Area/CN) = [(0.310 x 98) + (0.570 x 60)[ 10.880 Q (Cfs) 2.00 1.00 0.88 Ac Post-Dev Hyd. No. 1 -- 2 Year 120 240 360 480 600 720 840 960 — Hyd No. 1 Q (Cfs) 2.00 1.00 0.00 1080 1200 1320 1440 1560 Time (min) Hydrograph Report 9 Hydraflow Hydrographs Extension for AutoCAD® Civil 3DO 2010 by Autodesk, Inc. v9.25 Thursday, Oct 11, 2012 Hyd. No. 2 <no description> Hydrograph type = Reservoir Peak discharge = 0.159 cfs Storm frequency = 2 yrs Time to peak = 798 min Time interval = 2 min Hyd. volume = 5,169 cuft Inflow hyd. No. = 1 - 0.88 Ac Post-Dev Max. Elevation = 26.75 ft Reservoir name = LOUIS ROAD POND Max. Storage = 2,706 cuft Storage Indication method used Q (Cfs) 2.00 0.00 x. 0 600 — Hyd No. 2 <no description> Hyd. No. 2 -- 2 Year 1200 1800 2400 — Hyd No. 1 3000 3600 4200 4800 5400 II_TTT-M Total storage used = 2,706 Cuft Q (cfs) 2.00 1.00 1 0.00 6000 Time (min) 10 Hydrograph Summary Report Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2010 by Autodesk, Inc. v9.25 Hyd. No. Hydrograph type (origin) Peak flow (cfs) Time interval (min) Time to Peak (min) Hyd. volume (cult) Inflow hyd(s) Maximum elevation (ft) Total strge used (cuft) Hydrograph Description 1 SCS Runoff 3,720 2 724 11,117 ------ ------ ------ 0.88 Ac Post-Dev 2 Reservoir 1.369 2 740 10,914 1 27.13 4,437 <no description> Louis Road_pond_9.19.12.gpw Return Period: 10 Year Thursday, Oct 11, 2012 Hydrograph Report 11 Hydraflow Hydrographs Extension for AutoCADO Civil 3D® 2010 by Autodesk, Inc. v9.25 Thursday, Oct 11, 2012 Hyd. No. 1 0.88 Ac Post-Dev Hydrograph type = SCS Runoff Peak discharge = 3.720 cfs Storm frequency = 10 yrs Time to peak = 724 min Time interval = 2 min Hyd. volume = 11,117 cuft Drainage area = 0.880 ac Curve number = 73" Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 5.00 min Total precip. = 6.74 in Distribution = Type III Storm duration = 24 hrs Shape factor = 484 ' Composite (Area/CN) = I(0.310 x 98) + (0.570 x 60)) / 0.880 Q (Cfs) 4.00 3.00 r M 1.00 0.00 0 120 240 — Hyd No. 1 0.88 Ac Post-Dev Hyd. No. 1 -- 10 Year 360 480 600 720 840 Q (Cfs) 4.00 3.00 2.00 1.00 �__' ' 0.00 960 1080 1200 1320 1440 1560 Time (min) Hydrograph Report 12 Hydra flow Hydrographs Extension for AutoCAD® Civil 3DO 2010 by Autodesk, Inc. v9.25 Hyd. No. 2 <no description> Hydrograph type = Reservoir Peak discharge Storm frequency = 10 yrs Time to peak Time interval = 2 min Hyd. volume Inflow hyd. No. = 1 - 0.88 Ac Post-Dev Max. Elevation Reservoir name = LOUIS ROAD POND Max. Storage Storage Indication method used. Q (cfs) 4.00 3.00 1.00 <no description> Hyd. No. 2 -- 10 Year Thursday, Oct 11, 2012 = 1.369 cfs = 740 min = 10,914 cult = 27.13 ft = 4,437 cuft Q (cfs) 4.00 3.00 2.00 1.00 0.00 I I I I I --// J I I 1 0.00 0 120 240 360 480 600 720 840 960 1080 1200 1320 1440 1560 1680 Time (min) — Hyd No. 2 —Hyd No. 1 f�-� Total storage used = 4,437 cuff 13 Hydrograph Summary Report Hydrallow Hydrographs Extension for AutoCAD® Civil 3D® 2010 by Autodesk, Inc. v9.25 Hyd. No. Hydrograph type (origin) Peak flow (cfs) Time interval (min) Time to Peak (min) Hyd. volume (cult) Inflow hyd(s) Maximum elevation (ft) Total strge used (cult) Hydrograph Description 1 SCS Runoff 7.619 2 724 23,143 ------ ------ ------ 0.88 Ac Post-Dev 2 Reservoir 4.851 2 728 22,932 1 27.54 6,306 <no description> Louis Road_pond_9.19.12.gpw Return Period: 100 Year Thursday, Oct 11, 2012 Hydrograph Report 14 Hydraflow Hydrographs Extension for AutoCAD® Civil 3DO 2010 by Autodesk, Inc. v9.25 Hyd. No. 1 0.88 Ac Post-Dev Hydrograph type = SCS Runoff Peak discharge Storm frequency = 100 yrs Time to peak Time interval = 2 min Hyd. volume Drainage area = 0.880 ac Curve number Basin Slope = 0.0 % Hydraulic length Tc method = User Time of conc. (Tc) Total precip. = 11.20 in Distribution Storm duration = 24 hrs Shape factor Composite (Area/CN) = i(0.310 x 98) + (0.570 x 60)] / 0.880 Q (cfs) 8.00 . M 4.00 PAKII 0.00 ' 0 120 240 — Hyd No. 1 0.88 Ac Post-Dev Hyd. No. 1 -- 100 Year 360 480 600 720 840 Thursday, Oct 11, 2012 = 7.619 cfs = 724 min = 23,143 cuft = 73" = Oft = 5.00 min = Type III = 484 Q (Cfs) 8.00 4.00 WMIX 0.00 960 1080 1200 1320 1440 Time (min) Hydrograph Report 15 Hydraflow Hydrographs Extension for AutoCAD® Civil 3D8 2010 by Autodesk, Inc. v9.25 Thursday, Oct 11, 2012 Hyd. No. 2 <no description> Hydrograph type = Reservoir Peak discharge = 4.851 cfs Storm frequency = 100 yrs Time to peak = 728 min Time interval = 2 min Hyd. volume = 22,932 cuft Inflow hyd. No. = 1 - 0.88 Ac Post-Dev Max. Elevation = 27.54 ft Reservoir name = LOUIS ROAD POND Max. Storage = 6,306 cuft Storage Indication method used Q (cfs) 8.00 Am 4.00 VA1111l 'm <no description> Hyd. No. 2 -- 100 Year Q (cfs) 8.00 WE Ill 2.00 Ill 0 120 240 360 480 600 720 840 960 1080 1200 1320 1440 •1560 Time (min) — Hyd No. 2 — Hyd No. 1 ALL Total storage used = 6,306 cult W Hydraflow Rainfall Report Hydraflow Hydrographs Extension for AutoCADO Civil 3DO 2010 by Autodesk, Inc. v9.25 Thursday, Oct 11, 2012 Return Period Intensity -Duration -Frequency Equation Coefficients (FHA) (Yrs) B D E (NIA) 1 74.7826 12.6000 0.8872 -------- 2 82.2689 12.4000 0.8657 -------- 3 0.0000 0.0000 0,0000 -------- 5 90,7374 12.9000 0.8393 -------- 10 88,6617 12.3000 0.8014 -------- 25 80.0794 11.1000 0.7416 -------- 50 75.8521 10.4000 0.7031 -------- 100 68.8855 9.3000 0.6572 -------- File name: Jacksonville.IDF Intensity = B / (Tc + D)^E Return Period Intensity Values (in/hr) (Yrs) 5 min 10 15 20 25 30 35 40 45 50 55 60 1 5.87 4.70 3.94 3.40 2.99 2.68 2.43 2.22 2.05 1.90 1.78 1.67 2 6.94 5.58 4.68 4.05 3.58 3.21 2.91 2.67 2.47 2.30 2.15 2.02 3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0,00 5 8.06 6.55 5.55 4.84 4.29 3.87 3.53 3.25 3.01 2.81 2.63 2.48 10 9.03 7.37 6.26 5.47 .4.88 4.41 4.03 3.72 3.46 3.23 3.04 2.87 25 10.20 8.35 7.13 6,26 5.60 5,09 4.67 4.33 4,04 3.79 3,58 3.39 50 11.09 9.10 7.80 6.88 6.18 5.63 5.19 4.82 4.51 4.24 4.01 3.81 100 11.99 9.85 8.46 7.48 6.75 6.17 5.70 5.32 4.99 4.71 4.46 4.25 Tc = time in minutes. Values may exceed 60. Preci . file name: O:\NC IPT NUCLEUS\!Civil\Hydraflow\IDF\Havelock24hpreci depth.pcp Storm Rainfall Precipitation Table (in) Distribution 1-yr 2-yr 3-yr S-yr 10-yr 25-yr 50-yr 100-yr SCS 24-hour 3.60 4.36 0.00 0.00 6.74 0.00 9.71 11.20 SCS 6-Hr 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 i Huff -1st 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Huff-2nd 0.00 0.00 0,00 0.00 0.00 0.00 0.00 0.00 Huff-3rd 0.00 0.00 0.00 a00 0.00 0.00 0.00 0.00 Huff-4th 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Huff-Indy 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Custom 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Orifice Flow for circle stage = 26.55 Q = Ca (2gh)Al/2 c is variable area\diam head0.75 g32\ 0.52 0.6 0.0 Q = 0.0106 head is height above centerline of orifice elevation of water surface is inv 26 plus 1/2 of pipe = 0.03 plus head = 0.52 Max Flow = 0.0106 cfs Avg Flow = 0.0053 cf Volume= 1771.00 Drawdown Time= 3.86 days OK Louis Road Parking Lot Narrative The Louis Road Parking Lot is being constructed because of the Sneads Ferry Road Expansion project which will eliminate parking from a nearby building. The proposed Louis Road Parking Lot will provide 40 new spaces. The site is currently undisturbed with a majority of the site being located on a grassy field. About a quarter of the site is an existing wooded area. There are no known wetlands in the vicinity of the site. The project proposes to minimize runoff by using a wet pond. Water will sheet flow off of the parking lot into a shallow drainage swale where it will continue through a pipe under proposed sidewalk and into the Wet Pond forebay. A wet pond was selected because other options were not viable. As seen the Geotechnical Report (attached) infiltration on site is not adequate for an infiltration basin. Bioretention was not used because of the shallow depth of the SHWT. The site drainage is designed to meet the stormwater requirements of NCDENR. In addition to meeting NCDENR requirements, additional improvements have been incorporated to satisfy NAVFAC's requirements for LID (Low Impact Development) by provided no net increase in water quality and water volume. The wet pond is designed to store and slowly release the 1.5" rainfall event through a''Y." orifice on the outlet structure. Following a rain event, the temporary pool will draw down in approximately 4 days to its permanent pool level. The 10-year flows (and larger storm events) will exit the pond through a rectangular weir in the outlet structure and eventually the rim of the outlet structure (if the pond reaches higher elevations). The outlet structure is designed to reduce discharge for the 10-year storm below pre -developed rates. 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