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HomeMy WebLinkAboutSW8090918_HISTORICAL FILE_20091201STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW8 Og()5j ► $ DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE 200 °I 12o 1 YYYYMMDD NC®ENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coleen H. Sullins Governor Director December 1, 2009 Commanding Officer c/o Carl Baker, Deputy Public Works Officer MCB Camp Lejeune Bldg 1005 Michael Road Camp Lejeune, NC 28547 Subject: State Stormwater Management Permit No. SW8 090918 Lincoln Park School Development High Density Commercial Wet Detention Pond Project Onslow County Dear Mr. Baker: Dee Freeman Secretary The Wilmington Regional Office received a complete Stormwater Management Permit Application for Lincoln Park School Development on November 30, 2009. 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. SW8 090918 dated December 1, 2009, for the construction of the subject project. This permit shall be effective from the date of issuance until December 1, 2019, and shall be subject to the conditions and limitations as specified therein. Please pay special attention to the Operation and Maintenance requirements in this permit. Failure to establish an adequate system for operation and maintenance of the stormwater management system will result in future compliance problems. If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing upon written request within thirty (30) days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 1506 of the North Carolina General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611- 7447. 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 Christine Nelson, or me at (910) 796-7215. Sincerely, r �r e, o gectte Cott Stormwater Supervisor Division of Water Quality GDS/ can: S:\WQS\STORMWATER\PERMIT\090918.dec09 cc: Edward (Ted) Miller, Kimley-Horn and Associates Christine Nelson �Wilmingt6b Regional -Office Central -Files Wilmington Regional Office 127 Cardinal Drive Extension, Wilmington, North Carolina 28405 One Phone: 910-796-72151 FAX: 910-350-20041 Customer Service: 1-877-623-6748 NorthCarOtl na Internet: www.ncwaterquality,org �n�,/Nn��� An Equal Oppotlunity l Affirmative Action Employer Naturally State Stormwater Management Systems Permit No. SW8 090918 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 Commanding Officer & MCB Camp Lejeune Lincoln Park School Development Brewster Blvd, Camp Lejeune, Onslow County FOR THE construction, operation and maintenance of a 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 December 1, 2019, 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. This stormwater system has been approved for the management of stormwater runoff as described in Section 1.8 on page 3 of this permit. The stormwater control has been designed to handle the runoff from 367,263 square feet of impervious area. A 50' wide vegetative buffer must be provided adjacent impounded structures, streams, rivers and tidal waters. 4. A vegetated filter strip is not required for the wet detention pond as the pond has been designed for a 90% TSS removal efficiency. 5. The tract will be limited to the amount of built -upon area indicated on page 3 of this permit, and per approved plans. The built -upon area for the future development is limited to 37,873 square feet. Page 2 of 8 State Stormwater Management Systems Permit No. SW8 090918 6. 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. 7. 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. 8. The following design criteria have been provided in the wet detention pond and must be maintained at design condition: a. Drainage Area, ?cres: 20.28 Onsite, ft : 883,336 Offsite, ftZ: 0 b. Total Impervious Surfaces, ftZ: 367,263 Onsite, ft : 367,263 Offsite, ftZ: 0 C. Design Storm, inches: 1.5 d. Average Pond Design Depth, feet: 3.5 e. TSS removal efficiency: 90% f. Permanent Pool Elevation, FMSI�: 14.0 9. Permanent Pool Surface Areq, ft : 57,894 h. Permitted Storage Volume, ft : 279,990 i. Temporary Storage Elevation, FMSL: 18.00 j. Pre-dev. 1 yr-24 hr. discharge rate, cfs: 5.39 k. Controlling Orifice: 2.50"0 pipe I. Orifice flowrate, cfs: 0.19 M. Permitted Forebay Volume, ft3: 34,928 n. Fountain Horsepower 3/4 HP o. Receiving Stream/River Basin: Morgan Bay / White Oak P. Stream Index Number: 19-18 q. Classification of Water Body: "Sc" II. SCHEDULE OF COMPLIANCE 1. 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 time provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency. The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited to: a. Semiannual scheduled inspections (every 6 months). b. Sediment removal. C. Mowing and re -vegetation of slopes and the vegetated filter. d. Immediate repair of eroded areas. e. Maintenance of all slopes in accordance with approved plans and specifications. f. Debris removal and unclogging of outlet structure, orifice device, flow spreader, catch basins and piping. g. Access to the outlet structure must be available at all times. Page 3 of 8 State Stormwater Management Systems Permit No. SW8 090918 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. Decorative spray fountains will be allowed in the stormwater treatment system, subject to the following criteria: a. The fountain must draw its water from less than 2' below the permanent pool surface. b. Separated units, where the nozzle, pump and intake are connected by tubing, may be used only if they draw water from the surface in the deepest part of the pond. c. The falling water from the fountain must be centered in the pond, away from the shoreline. d. The maximum horsepower for a fountain in this pond is 3/4 horsepower. 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. 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. 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. Project name change. C. Transfer of ownership. d. Redesign or addition to the approved amount of built -upon area or to the drainage area. e. Further 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. f. 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. Page 4 of 8 State Stormwater Management Systems Permit No. SW8 090918 12. A copy of the approved plans and specifications shall be maintained on file by the Permittee at all times. 13. The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements of the permit. Within the time frame specified in the notice, the permittee shall submit a written time schedule to the Director for modifying the site to meet minimum requirements. The permittee shall provide copies of revised plans and certification in writing to the Director that the changes have been made. III. GENERAL CONDITIONS This permit is not transferable to any person or entity except after notice to and approval by the Director. In the event of a change of ownership, or a name change, the permittee must submit a completed Name/Ownership Change Form signed by both parties, to the Division of Water Quality, accompanied by the supporting documentation as listed on page 2 of the form. The approval of this request will be considered on its merits and may or may not be approved. 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 nor the transfer of common area to a third party constitutes an approved transfer of the stormwater permit. 3. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to enforcement action by the Division of Water Quality, in accordance with North Carolina General Statute 143-215.6A to 143-215.6C. 4. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances, which may be imposed by other government agencies (local, state, and federal) having jurisdiction. 5. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems. 6. The permittee grants DENR Staff permission to enter the property during normal business hours for the purpose of inspecting all components of the permitted stormwater management facility. 7. The permit 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. 9. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. 10. The permittee shall notify the Division of any name, ownership or mailing address changes at least 30 days prior to making such changes. Page 5 of 8 State Stormwater Management Systems Permit No. SW8 090918 11. 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 1 st day of December 2009. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION D,C c tor uoieen m. sumns, uirector Division of Water Quality By Authority of the Environmental Management Commission Page 6 of 8 State Stormwater Management Systems Permit No. SW8 090918 Lincoln Park School Development Stormwater Permit No. SW8 090918 Onslow Countv Designer's Certification I, , as a duly registered in the State of North Carolina, having been authorized to observe (periodically/ weekly/ full time) the construction of the project, (Project) for (Project Owner) hereby state that, to the best of my abilities, due care and diligence was used in the observation of the project construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications. The checklist of items on page 2 of this form is included in the Certification. Noted deviations from approved plans and specifications: Signature Registration Number Date SEAL Page 7 of 8 State Stormwater Management Systems Permit No. SW8 090918 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. 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 DWQ.USIiONLY Date Received Pee Paid I'crmit Number LAIICableRules: all that apply) ❑ Coastal SW —'1995 Coastal SW — 2008 ❑ Ph 11 - Post Constnwtiont ❑ Non -Coastal SW- HQW/ORW Waters ❑ Universal Stormwater Management Plan ❑ Other WQ M mit Plan: State of North Carolina Department of Environment and Natural Resourc es+ C'Z Division of Water Quality rr STORMWATER MANAGEMENT PERMIT APPLICATI F&MQ 9 2009 This form nmy 6e photocopied for use as an origirml BY: 1. 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.): Lincoln Park School Development 2. Location of Project (street address): City:Camp Lejeune County:Onslot�� Zip:28542 3. Directions to project (Flom nearest major intersection): Drive west from the intersection of Stone Street and Brewster 13oulevard. The project site will be located on the left side of the road in approaimatly half a mile. 4. Latitude:34° 42' 48" N Longitude:-77° 22' 08" W of the main entrance to the project. IL PERMIT INFORMATION: 1. a. Specify whether project is (check one): ®New ❑Modification 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: ❑Not Started ❑Partially Completed* ❑ Completed* *provide a designer's crrtification 2. Specify the type of project (check one): ❑Low Density ®High Density ❑Drains to an Offsite Stormwater System ❑Other 3. If this application is being SUbnlllied as the result of a previously returned application or a letter from DWQ requesting a stale stormwater management permit application, list the stornnvaler project number, if assigned, and the preeious name of the pmjccl, if different than anrently proposed, 4. a. Additional Project Requirements (check applicable blanks; information on reiluiitd slate permits can be Obtained by contacting the Customer Service Center at 1-877-623-67,18): ❑CAMA Major ®Sedimentation,/Erosion Control: 25.26 ac of Disturbed Arca ❑NPDES lndusb'ial Storm"'ilter ®404/401 Permit Proposed Impacts <0.10 AC b.lf any of these permits have already been acquired please provide the Project Nome, Project/Permit Number, issue date and the type of each permit: Form SWU-101 Version 07.Iu1y2009 Pauc 1 46 UL. 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 Signing Official & Title:Carl Baker, Deputy Public Writ b.Contact information for person listed in item la above: Street Acidress:Bldg 1005 Michael Road City:Camp Lejeunc State:NC Zip:28542 Mailing Address (if applicnble):Bldg'1005 Michael Road City:Camp Lcjcunc StaleNC Zip:28542 Phone: (910 ) 451-2213 Email:carl.h.bakcr �� usmc.mil Fax: (910 ) 451-2927 c. Please check the appropriate box. The applicant listed above is: ® The property owner (Skip to Contact Information, item 3a) ❑ Lessee* (Attach a copy of the lensc agreement and complete Contact Information, item 2a and 2b below) ❑ Puichascr* (Attach a copy of the peodiog sales agreement and complete Contact Information, item 2a and 2b below) ❑ Developer* (Complete Contact Information, item 2a and 2b below.) 2. a. Print Pro aerty Owner's name and I i I I c below, if you are the lessee, purchaser or deve lopeI I. ('Phis is the Perm) n w�io owns the property that file project is located on). Property Owncr/Organization:Same as above Signing Official & Title: b.Contact information for person listed in item 2a above: Street Ad City: Mailing Address (if City: Phone: ( ) Email: Fax: Zip: 3. a. (Optional) Print the name and title of anothmr 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 3e above: Mailing Add City: Phone: Email: 4. Local jurisdiction for building permits: Point of Contact Sta Fax: Phone #: 7_i Foml SWU-101 Version 07,442009 Page'_' o1 6 Iv, PROJECT INFORMATION 1. In the space provided below, briefly sunvnarize how the stormwater runoff will be treated. Runoff from rainfall events will be controlled by a series of drainage inlets and will be conveyed using underground piping networks. Each of these networks will empty directly into an on -site wet pond. The wet pond controlling and treating runoff from the school development will outfall into an unnamed ditch on the West side of the subiect property 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 Dale: ❑ Other: Date b.Identify the regulation(s) the reject has been designed in accordance with: ElCoastal SW— 1995 � Ph If — Post Construction 3. St01'mlwatCirunoff from this Project drains to the While Oak River basin. 4. "Total Property Area: 272 awes 5. Total Coastal 6\rellancis Area: 0 acres 6. Total Surface Wafer Area: 0 acres 7. Total Property Area (4) —Total Coastal Wetlands Area (5) —Total Surface Wafm Area (6) =Total Project Area": Total project area shall be calculated to ecchrde Ilie jolLxoingr the not maI pool of impounded sheet rues, the wren l0ween the ban/cs of shennrs and rivers, them ea below the Normal High Water (NHW) line or Mean High Water (/v1HW) line, and cooetnl Wetlands landward from the NHIV (or MHW) line. The icsultoot project men is used I cirlculatc overall percent built upon wren (131111). Non -coastal toetlands landward o(the NHW (or MHW) line, may be inchrded in Ilse total project area. S. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 30.99 '% 9. How mane drainage areas does the project have? 1 (For high density, count 'I for each proposed engineered stormwatcr BMP. For low density and other projects, Use I for the whole property area) 10. Complete the following information for each drainage area identified in Project Information item 9. If there are more than four drainage areas in the project, attach an additional sheet with the information for cash area provided in the same format as below. Basin Information Drainage Area "I Drainage Area Draina*e Area Draina ge Area Receiving Stream Name MORGAN BAY Stream Class * SC Stream Index NUmbcr * 19-18 Total Drainage Area (sf) 883,336 On -site Drainage Area (sf) 883,336 Off -site Drainage Area (sf) 0 Pro posed Imp rvious Area** (sf) 367,263 '% Impervious Area** (total) % 41.58 Impervious" Surface Area Draina ge Area 1 Draina =e Area Draina 8c Areo _ Diaino se Area _ On -site Buildings/Lots (sf) 79,350 On -site Strects (sf) 64,943 On -site Parking (sf) 100,871 On -site Sidewalks (sf) 52,800 0111er' oil -site (sf) 31,426 Future (sf) 37,873 Off -site (sf) 0 Bsistinrj BUA*** (sf) (1 Total (sf): 367,263 /Y Strennr Class mid Inde.r Nunrbcr con be determined al: hllp://h2o.carsfnlr.nc.us/hints/rcpnrls/rcp�i�1711�'.li.ltl.ud f �l hn{xrvious aria is drfined ns plat hurt epee nn'a iruauding, buf not limits 1 hr, barb.... roods, 1,, 11,, nrcas, sidewalks, 'ravel meal, etc. NOV 0 5 2009 Form SWU-101 Version 07.1a1v2009 Pace 3 of 6 DWO PROJ a Report only that amount of existing BUA that will rennin after development. Do not report any existing BLIA that is to be removed and Which will be replaced by new BUA. 11. Flow was the off -site impervious area listed above determined? Provide documentation. None Projects in Union Count°: Contact DfVQ Central Office staff it) check ifthe project is located within a Threatened K Endangered Species watershed that pray be subject to more, stringent stnranvater requirements rtp rx�VC7N1C 02Br 0`0./ V. SUPPLEMENT AND O&M FORMS 7 The applicable stale stormwater management permit supplement and operation and maim Hance ( &M) forms must be submitted for each BNIP specified for this project. The latest versions of the forms I un be downloaded fromhttpJ n /h2oer.state.nc.us/su bam p fors.htio. 10 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 llmL./f h2o.enrstate.nc.us su/bap forms.hhn. 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 it http)j/h2o.enr.stale.ne.us/su/msi maps.htm.) Please indicate that the following required information have been provided by initialing in the space provided for each item. All original documents MUST' be si};ned and initialed in blue ink. Download the latest versions for each submitted application package from hllp://h2o.enrstatenc.us su bap forms.hhn. 'I. Original and orrc copy of the Stornnvater Managemenf Permit Application Form. 2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants Form. (if required as per Part VII beloro) 3. Original of the applicable Supplement Form(s) (scaled, signed and dated) and O&M agreement(s) for each 13MP. 'I. Permit application processing fee of $505 payable to NCOENR. (For an Express review, refer to hall/wwuv.enahelp.org/pages/oncstoJ1 xpress.hhnl for information on the Express program and the associated fees. Contact the appropriate regional office Express PermitCoordinator for additional information and to schedule the required application meeting.) 5. A detailed narrative (one to two pages) describing the stormiaater treatment/management for the project. This is required in addition to (lie brief summary provided in the Project Information, item 1. 6. A USGS map identifying the site location. If the receiving stream is reported as class SA or the receiving stream drains- to class- SA waters within 'k mile of the site boundary, include the mile radius on the map. 7. Sealed, signed and dated calculations. S. Two sets of plans folded to 8.5" x l4" (sealed, signed, & (fated), including: a. Development/Project name. b. Engineer and firm. c. Location map with named Micets and NCSR numbers. d. Legend. e. North arrow. - - I. Scale. g. Revision number and dates. h. Identify all surface waters on the plans by delineating the noloral pool elevation of impounded structures, the banks of streams and rivers, the MHW or NHW line of tidal waters, and anv coastal wetlands landward of the MHW or NH4V lines. • Delineate the vegetated buffer landward from the normal pool elevation of impounded structures, the banks of streams or rivers, and the MI-IVV (or NFIW) of tidal waters. 1. Dimensioned property/projed boundory kith bearings & instances. j. Site Layout with all BUA idontificd aril dimensioned. k. Existing contours, proposed amtours, spot elevations, finished floor elevations. I. Details of roads, drainage features, collection systenu, and stonnwotcr Control mt!asures. m. Wcnands dClliealed, or ❑Hole nn the plans That none exist. (Must be delineated by a qualified person. Provide documentation of qualifications and identify the person who made the determination on the plans. n. Lxisting drainage (including off -site), drainage easements, pipe sizes, runoff calculations. o. Drainage areas delineated (included in the main set of 111ans, not as a separate ilUQmlCnl)' Initials -k- -NiA I � • Foal SIVU-101 Vcisioii 07411\•2009 Puce 4 of 6 p. Vegetated buffers (where required). 9. Copy of any applicable soils report with the associated SHWT elevations (Please identify j 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 to 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 a(eT 0 Ct 7009 (Infiltration Devices submitted to WiRO: Schedule a site visithor DWQ to verify the SHWT Lrior to submittal, (910) 796-7378.) 1 Y: 10. A copy of the most current property deed. Deed book: N/A Page No: N/A N )A It. 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 NCAC 21-1.1003(c). The corporation or LLC must be listed as an active corporation in good standing with the INC Secretary of State, otherwise the application will be returned. httpl/wwwsecretaryshitcnaus/Corporations/CSearch.nspx VII. DEED RESTRICTIONS AND PROTECTIVE COVENANTS For all subdivisions, outporcels, and future development, the appropriate property restrictions and protective covenants are required to be recorded prior to the sale of any lot. If lot sizes vary significantly or the proposed BUA allocations vary, a table listing each lot number, lot size, and the allowable built -upon area must be provided as an attachment to the completed and notarized deed restriction form. The appropriate deed restrictions and protective covenants forms can be downloaded from httu://li2o.enr.St,ItC.ncus/su/bmp forms.htiopdeed restrictions. 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 enu sring 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. VIII. CONSULTANT INFORMATION AND AUTHORIZATION Applicant: Complete this section if you wish to designate authority to another individual and/or firm (such as a consulting engineer and/or firm) so that they may provide information on your behalf for this project (such as addressing requests for additional information). Consulting Engineer: Consulting Firm: Kin ley-l-lorn and Associates Mailing Adchess:501 Independence Parkway City:Chesapeake State:VA Zip:23320 Phone: (757 ) 548-7300 Fax: (757 548-7301 Email:"Fed.Millcr�Kiraly-l-Iorn.Com IX. PROPERTY OWNER AUTHORIZATION Ql Contact Informmlion, item 2 has been filled out, complete this section) 1, (print or 1 ype name t J person lislcd in Contocl In/in n al ion, item 2a) , certify that I own the property identified in this permit application, and thus give permission to (print or type name of lreram listed in Contact Infornrnlion, item 1n) with (print or type name ofmganizntion listed in Contact bnfonn ation, item 11)) to develop the project as currently proposed. eA copy of the lease agreement or pending propm-ty soles cont,acl has been provided with the submittal, which indicales the party responsible for the operation ❑nd maintenance of the stonnwaler system. Form SWU-101 Version 07luh,2009 Paec 5 of 6 As.the legal property owner I acknowledge, understand, and agree by my signature below, that if my designated agent (entity listed in Contact Information, item 1) dissolves their company and/or cancels or defaults on their lease agreement, or pending sale, responsibility for compliance with the 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. Signa before me this it Notary Public for the State of do hereby certify that day of stormwater permit. Witness my hand and official seal, X. APPLICANT'S CERTIFICATION Date: County of personally appeared and acknowledge the due execution of the application for a y2c.CFF i JF,D SEAL OCT i ', 2009 BY":____ My commission expires 1, (print or type nnrnr of person listed in Contact hijimuntion, item 2) Carl Baker, Depute Public Works O Jicer certify that the information included un this Permit application form is, to the best of my knowledge, correct and that the project will be C0l1StRlCted in conformance with the approved plans, that the required deed restrictions and protectiyc cove a}i}ts will be r tied, and that the proposed project complies with the requirements of the applicable stormw terd ales AW� 21-I .1000, SL 2006-246 (Ph. 1I — Post Contitr-uction) or SLG2008-21 I. Srgnatu e Date: I, _ /C �� /�� a Notary Public for the State ofb�i� lei=�. County of U/y�J do hcrebv certify that personally appeared before me this f%day of Oz,/ t% , and a � •r owlc e th due cxecutiim of the a lication for n /] stormwater permit, Witness' my hand and official seal, _�� bazz�_ F p ALICE A BONNEM Notary Public OMlow County state of North Carolina My Comminlon Expir•l Oct 23, 2010 SEAL My commission expires C'_12 4a,4 0 Form SWU-101 Version 071uIv2009 I'tr_c 6 of 6 .".r#-A yyA („uu::.rix�Iou Esbilox Oc{ ST .i070 <1171� O{ ;lgtly ('91UliUU DV'.iUN, CUflilh ACJGId b,IPl;t `: fICE V' 00"OUIE K; FOR: NCDENR P. 01 K TRANSACTION REPORT ----- DEC-02-2009 WED 12:31 PM M 910 350 2004 SEND DATE START RECEIVER TX TIME PAGES TYPE NOTE MO DP K DEC-02 12:30 PM 919104512927 1'34" 9 FAX TX OK 182 K � M TOTAL : 1M 34S PAGES: 9 leverly Eupes Perdue, Governor Date: ro:i. l nnI f7 Co: Fax: State of North Carolina Department of Environment and Natural Resources Wilmington Regional Office nee Freeman, Secretary FAX COVyrp, SIrEFT No. Pages (excl. cover): �--- From: Satly RUSsell Phone: 910 796-T.?65 ­— Fax 910 350-2004 --- rY N� Re: 127 Cardinal Drive Extension, Wilmington, NC 28405 • (910) 796.7215 • An Ftlual Opportunity hf(irmativc Action Lmploy:r State of North Carolina Department of Environment and Natural Resources Wilmington Regional Office Beverly Eaves Perdue, Governor FAX COVER SHEET Dee Freeman, Secretary Date: �o2�gOc��/ eq To: �rnX (T- 7J-11 Cc: A/ C 49 Fax: 7 / 0 �2 9.2 1 M f-w cLi'�' Y 0904 l d No. Pages (excl. cover): From: Salmi Russell Phone: (910) 796-7265 Fax: (910)350-2004 127 Cardinal Drive Extension, Wilmington, NC 28405 • (910) 796-7215 • An Equal Opportunity Affirmative Action Employer s FOR: NCDENR TRANSACTION REPORT 910 350 2004 P. 01 DEC-02-2009 WED 12:29 PM >K X SEND DATE START RECEIVER TX TIME PAGES TYPE NOTE M# DP DEC-02 12:27 PM 917575487301 1'16" 9 FAX TX OK 181 1K TOTAL 1 M 16S PAGES: 9 K State of North Carolina Department of Environment and Natural Pesources Wilmington Regional Office Beverly Eaves Perdue, Governor FAX COVER SHEET Dee Freemmn, Secretary Date: To: Cc: Re: boa L No. Pages (excl. cover): From: Sally Fussell Phone: 9l0 796-7265 Fax: (910)350-2004 127 Cardinal Drive Extension, Wilmington, NC 28405 • (910) 796-7215 • An Equal Opportunity Affirmative Action Emplaycr ti State of North Carolina Department of Environment and Natural Resources Wilmington Regional Office Beverly Eaves Perdue, Governor FAX COVER SHEET Dee Freeman, Secretary Date: l l Da / ZOO l To: I aC i� i I eA- Co: /y (vim /m w !S id3SaC Fax: l5l - 5 qK i 3o I Q n n Re: (, l c. l dv d � No. Pages (excl. cover): From: Sally Russell Phone: (910) 796-7265 Fax: (910) 350-2004 127 Cardinal Drive Extension, Wilmington, NC 28405 9 (910) 796-7215 • An Equal Opportunity Aft -rmative Action Employer lily i, ; I P. 01 J TRANSACTION REPORT NOV-20-2009 FRI 08:58 AM x< FOR: NCDENR 910 350 2004 SEND DATE START RECEIVER TX TIME PAGES TYPE NOTE M# DP NOV-20 08:57 AM 917575487301 46" 3 FAX TX OK 130 �M TOTAL 46S PAGES: 3 �. ivurin Carolina Department of Environment and Natural Resources wilminc,ton Regional. Office Beverly Eaves Perdue, Governor Dee Freeman ' ,Secretary I FAX COVER SHEET Date: l t-26 To: CO: FAX#: -?,Sq SI`{8-'13o I REMARKS: No. Of Pages: (excluding cover) From: C — CO: NC DENR FAX#: 910-350-2004 [moo r\ (5 A=i'i I27 Cardinal Drive Extension, Wilmington, Y.C.'8apS-]8 An Equal OppartaNty a5 Tclephene (910) 796.T_IS Fax (9l p) 350._OpJ i' Anirtnative action Employer Kimley-Horn 501 Independence Parkway and Associates, Inc. Chile 00 Chesapeake, Virginia 23320 TEL 757.548.7300 FAX 757.548.7301 November 24, 2009 Christine Nelson North Carolina Department of Environment and Natural Resources Wilmington Regional Office 127 Cardinal Drive Extension Wilmington, North Carolina 28405C�' Yv�� Re: Second Request for Additional Information NOV 3 0 2009 Stormwater Project No. S W8 090918 Lincoln Park School Development BY: Onslow County Dear Christine Nelson: Please accept this letter as a response to the comments contained in your letter dated November 13, 2009. This letter will address each comment through additional information, figures and attachments. The responses below are numbered to correspond with the comments contained in the November 13, 2009 letter (see attached). I. A site visit was made by Vincent Lewis and soil borings were taken to determine the seasonal high water table (SI-I WT). The approximate elevation of the SH WT was determined to be 14.5. Please see the attached Division of Water Quality Infiltration Systems Investigation report. 2. The calculations and other supporting documents have been modified to reflect the correct SA/DA ratio. Because the correct SA/DA ratio does not impact the design, only the documents which show the calculation of this ratio have been attached. 3. No additional review fee is required 4. Please see attached stormwater calculations and documents, both have been reviewed for consistency and accuracy. If you have any questions or require additional information, please contact me at (757)548- 7324 or email me at Rachel.Oberle a kimley-horn.com. We look forward to hearing from you. Sincerely, Kimley-Morn and Associates, Inc. le.v�j- 6" Rachel Oberle, EIT Environmental Scientist Enclosures: Stormwater Permit Application, Including Supporting Calculations Nelson, Christine From: Ted.Miller@kimley-horn.com Sent: Tuesday, November 24, 2009 9:46 AM To: Nelson, Christine; Rachel.Oberle@kimley-horn.com Subject: RE: SHWT @ school Christine, you are correct in that Vincent's SHWT call for Boring #2 is Elev 14.5. We will move forward and will resubmit the school stormwater application to you given this information. Since the design normal pool of the BMP is currently 14.0, no design calculations will need to be revised given a SHWT of 14.5. I appreciate and thank you for your prompt reply regarding this issue. Ted Miller, P.E. Kimley-Horn and Associates, Inc. Direct: 757-548-7333 From: Nelson, Christine[mailto:christine.nelson@ncdenr.gov] Sent: Tuesday, November 24, 2009 8:37 AM To: Miller, Ted; Oberle (Watts), Rachel Subject: SHWT @ school Ted, I talked with one of my co-workers for a while yesterday regarding the situation at this site. I looked again this morning at the topo in the area of the pond along with the various SHWT elevations. I think I would be best to use Vincent's SHWT call at Boring BMP-2, which if I'm looking at the map & reports properly corresponds to an elevation of 14.5 ft. Christine hristine Nelson nvironmental Engineer (INC DWQ - Stormwater Program � Wilmington Regional Office 910-796-7323 Before printing this email, please consider your budget and the environment. If you must print, please print only what you need. 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. Nelson, Christine From: Nelson, Christine Sent: Friday, November 20, 2009 4:47 PM To: 'Rachel.Oberle@kimley-horn,com' Cc: Russell, Janet; Ted.Miller@kimley-horn.com; david.towler@usme.mil Subject: RE: 2nd request for additional info: SW No. 090918 Lincoln Park School Rachel, Dec 1 is fine with me. However, I must stress that the addinfo package must be complete once it is re -submitted. With the extensions and working through some unique issues, this project has significantly run over the express timeline of 30 days to issue the permit. So I need to get it permitted as soon as possible. Also, you don't need to re -submit everything originally submitted (like the geo-tech report). Only the pieces that have changed need to be submitted. Let me know if you have questions! Christine Christine Nelson Environmental Engineer NC DWQ - Stonnwater Program Wilmington Regional Office 910-796-7323 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. From: Rachel.Oberle@kimley-horn.com [mailto:Rachel.Oberle@kimley-horn.com] Sent: Friday, November 20, 2009 12:51 PM To: Nelson, Christine Cc: Russell, Janet; Ted.Miller@kimley-horn.com; david.towler@usmc.mil Subject: RE: 2nd request for additional info: SW No. 090918 Lincoln Park School Christine, We would like to formally request an extension on the submittal date for the 2n" request for additional information for SW Project SW8 090918 — Lincoln Park School Development. As we discussed, because we have not received all the necessary information from Vincent Lewis concerning the seasonal high water table (SHWT), we are unable to address the comments. The original submittal date is November 23, 2009. We would like to submit December I, 2009. Will this work? Please let me know if the extension has been grated and if the new date is acceptable. "['hank you for help through this process. Rachel A. Oberle, EIT Kimley-Horn and Associates, Inc. I Hampton Roads Office . 501 Independence Parkway I Suite 300 I Chesapeake, VA 23320 (p) 757-548-7324 (t) 757-548-7301 (e) Rachel.Oberle@Kim ley-Horn.com AHelp reduce paper waste. Please print only if necessary. Nelson, Christine From: Nelson, Christine Sent: Tuesday, November 17, 2009 11:17 AM To: 'Ted. Miller@kimley-horn.com'; david.towler@usmc.mil; Rachel.Oberle@kimley-horn.com Cc: Russell, Janet; Lewis, Vincent Subject: RE: SHWT for Lincoln Park School Attachments: infiltration site visit.doc Ted, As I indicated in my original e-mail, you need to complete the infiltration form (attached) and submit it to Vincent in order for him to schedule a site visit. I just spoke with Vincent and he has not received the completed form for this site. Please get the completed form to him ASAP. Christine From: Ted.Miller@kimley-horn.com [mailto:Ted.Miller@kimley-horn.com] Sent: Tuesday, November 17, 2009 10:56 AM To: Ted. Miller@kimley-horn.com; Nelson, Christine; david.towler@usmc.mil; Rachel.Oberle@kimley-horn.com Cc: Russell, Janet; Lewis, Vincent Subject: RE: SHWT for Lincoln Park School Vincent: I wanted to check in with you regarding the site visit to Lincoln Park. I've not heard anything regarding your anticipated site visit and wanted to find out if you've got it scheduled so that we could have the geotechnical engineer meet you in the field. Please let me know your anticipated schedule as soon as you are able —thanks! Ted Miller, P.E. Kimley-Horn and Associates, Inc. Direct: 757-548-7333 From: Miller, Ted Sent: Monday, November 09, 2009 6:48 PM To: 'Nelson, Christine'; david.towler@usmc.mil; Oberle (Watts), Rachel Cc: Russell, Janet; Lewis, Vincent Subject: RE: SHWT for Lincoln Park School Thanks for the heads up Christine. Would it be helpful to have the geotechnical consultant meet Vincent on -site? Ted Miller, P.E. Kimley-Horn and Associates, Inc. Direct: 757-548-7333 From: Nelson, Christine [mailto:christine.nelson@ncdenr.gov] Sent: Monday, November 09, 2009 3:22 PM To: Miller, Ted; david.towler@usmc.mil; Oberle (Watts), Rachel Cc: Russell, Janet; Lewis, Vincent Subject: SHWT for Lincoln Park School Ted, I reviewed the amendment to the soils report and talked with Vincent Lewis, the Division's regional Soil Scientist. Vincent helps the stormwater team in Wilmington by verifying all of the SHWT elevations for proposed infiltration systems. Pav l "qAh fbt_� �Cx -ttCro 72-1 DIVISION OF WATER QUALITY INFILTRATION SYSTEM INVESTIGATION Complete and email this form to Vincent.Lewis@ncmail.net. If there are more than 7 areas to be tested, attach a second sheet. t1 / �0 State Soil Scientist Confirmation Visit dateltime: /00/J Project Name: Zj,e ot.., TAeK- County: Carp Le':Seu ae / d -XSLat,J Street Address: UC&v> Directions from the nearest intersection of two major roads: rz • A/E-Xii� [.JET Oti REU}-r ETL llLYj] Fl?oo , 40t_60m$ YS LvD StrS Is 5rs r+ or %J 12ews-& 3 OT ••rq& r%JAr FFPor 570,-'c 'Sr. >1 acre being clisturbed� g ❑YES ❑NO CAMA Major required? ❑YES ❑NO Consultant Name: "FEA /''Rutz.- k)mL.EY- AzPhone: 757 - Syg - 733 Consultant Firm Name: K,r•, ICY- No p m 9 �-,z5 Bore Number 1 t$"J• Za 4 5 a Existing Ground Elevation Zo.S z.o.o ( b} Proposed Bottom Elevation c Difference a minus b)_ iS kv t3i is ;, rt ask `r d Add 2 ft. Min. Bore Depth',,.,,,+,, e Hardpan2epth? ou q N A u 4 fApprox. Elev. Of SHWT 6. 3.0 /Z.C) Max. lowest bottom elev. ? 46 h Infiltration Rate OK?' i) Confirmation of SHWT For projects requiring more than 5 hand borings, manpower or equipment to conduct the excavation must be provided by the consultant. 'State Soil Scientist Use ONLY Comments A3o•rE: aF SAI me T STo n x1G� /S �Lc� 8. sE?,tr-1E, r �tcYa" 0)—, &�LEy Is la b Required Attachments: 1. Legible vicinity map. 2. Complete Soils Report. 3. PDF formatted site plan with the boring locations to be tested. Site plans should be emailed or hand -delivered only. Illegible faxed maps will not be accepted. All proposed infiltration areas and existing, active utility lines located within the proposed basin/trench must be marked and Flagged. If these areas are not flagged, the Soils Scientist ,serves the right to decline to do the investigation. If the proposed infiltration system will be gated in an area of existing pavement and there is no open area nearby, equipment capable of eking through the impervious layer must be provided. The soils investigation does not take t�tace of a soils report prepared by an appropriate professional. The Soils Scientist will only she soil conditions that are reported in the Soils Report, and make a determination as to ability of the site to meet the infiltration design requirements under NCAC 2H.1000, and no liability should the system fail. TORMWATER\FORMS\infiltration site visit Revised 3/08 t CBR-2 14 B-1 —19 B-17 CBR-5 u ,..� CBR-6 B- ;..... 11 B-2 ;:s;l 1-11UItt1i CBR-7 ~ I} ff�� 111 CBR-8 " CBR-9 B-22 a a �- A B-2 BMP-1 BMP-2 LEGEND 0 —APPROXIMATE BORING LOCATIONS (FEASIBILITY STUDY) 7 P' �♦ Wy 0—AWRO%IMATE BORING LOCATIONS (NEV BORNS) fM EEiAiE SCHOOL A. aL, rv01M CMRtw VreNct M+ E.'B2K Yam 11. KL Pe L } J ad 4 .f7 (✓l a 7 BORING LOCATION PLAN c�o-y �zyEl MATCH SHEET CG-101 �{_—J /' / I-..4`l—�i'—n"'-�i✓,:"�.r,l r -- i }' !15�Iu4 --. 4L.1 DRAINAGE DESCRIPTIONS / I�.htare EEE r I" F 1 - _ BMP 6 1 4 I: , -,1 I�A < I •\\\p /• �/ � Y GRPIC SCALE r DITCH SECTION A -A Z Ally/y yi ✓y✓ w�.� �w I 9 i d S p 4401 Norw Mesa D Paso, TX 7%02 915.298.4281 A anlb Q El Pao a Lubbock O Midland 2 J J_ 2 Y 2 a Fm I je yTo rT ' and Associates Inc. NEW ELEMENTARY SCHOOL MCB CAMP LEJEUNE, NC 4D m� GRADING AND u,o DRAINAGE PLAN CG-102 A 1 1 2 1 '1 1 4 1 5 DRAINAGE DESCRIPTIONS E7'.�1�51,R, LLVD —:7 24 .1 �1 I'll 14 15 WV WT(4-1P)—W — — — — ___I — -- �4 N x X- x r L— — — — — — — -- — — — — r 2. r �22 —J 11 11211- 1. -------------- ------- — 7, --------- --- - --------------- N -�j I` I X X X — - — — — - — 13 U/ A 0 L L 0 ---------- -- ---- 41, P� R� U n MATCH SHEET CG-102 m 10 STB 1 1 2 1 3 1 4 1 5 "01 No Mew El Paw. TX79902 915.298.4281 Wadlio E) Paw q: Ubbock 0 In 0 Midland 0 Kimley-Horn and Associates, Inc. NEW ELEMENTARY SCHOOL MCB CAMP LEJEUNE, NC GRADING AND DRAINAGE PLAN CG-101 North Carolina Beverly Eaves Perdue Governor November 13, 2009 NC®ENR Department of Environment and Division of Water Quality Coleen H. Sullins Director Natural Resources Commanding Officer c/o Carl Baker, Deputy Public Works Officer US MCB Camp Lejeune Bldg 1005 Michael Road Camp Lejeune, NC 28542 Subject: Request for Additional Information Stormwater Project No. SW8 090918 Lincoln Park School Development Onslow County Dear Mr. Baker: Dee Freeman Secretary The Wilmington Regional Office received an Express Stormwater Management Permit Application for Lincoln Park School Development on October 9, 2009 with additional information received on November 5, 2009. A preliminary review of that information has determined that the application is not complete. The following information is needed to continue the stormwater review: 1. a. There is still a concern regarding the identified seasonal high water table (SHWT) elevation in relation to the soil mottling and soil moisture found in the borings. Due to the uncertainty with this site and the SHWT call, please complete the attached Infiltration Request form and submit it to Vincent Lewis, the Division's regional soil scientist, to verify the SHWT elevation for this wet detention pond. Vincent helps the stormwater team in Wilmington by verifying all of the SHWT elevations for proposed infiltration systems. Depending on his findings during the site visit to the school, you might also consider asking him to look at the ponds that have been proposed for the residential portion of this project while he is there. b. Please keep in mind that the SHWT influences the design of the permanent pool. The reported SHWT cannot be any higher than 6' above the permanent pool elevation. If the SHWT is found to be higher than 14.5 ft, please redesign the pond such that the elevation of the permanent pool is set no lower than 6" below the SHWT or meet the requirements outlined in Section 10.3.2 of the NC BMP manual. 2. It appears that the SA/DA ratio has not been updated to consider the new percent of impervious area found within the drainage area. Please modify the calculations and other supporting documents to reflect the correct SA/DA ratio. 3. Due to the potential minor nature of these comments, the express Addlnfo fee has been waived for this request for additional information. 4. Please keep in mind that changing one number may change other numbers and require the calculations, supplements, and other supporting documentation to be updated. Verify all numbers are correct to ensure consistency in the application documents. 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 November 23, 2009, or the application will be returned as incomplete. The return of a project will necessitate resubmittal of all required items, including the application fee. Wilmington Regional Office 127 Cardinal Drive Extension, Wilmington, Nonh Carolina 28405 One Phone: 910-796-72151 FAX: 910-350-20041 Customer Service: 1.877-623-6748 North Carolina Internet: vrav,.ncvyaterquallty.org a fry at 1'/�aln//� An Equal Opportunity l Affirmative Action Employer � � Carl Baker November 13, 2009 Stormwater Application No. SW8 090918 If you need additional time to submit the information, please email or fax your request for a time extension to the Division at the address and fax number at the bottom of this letter. Please note that a second significant request for additional information may result in the return of the project. If the project is returned, you will need to reschedule the project through the Express coordinator for the next available review date, and resubmit all of the required items, including the application fee. 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 label all packages and cover letters as "Express" and reference the project name and State assigned project number on all correspondence. If you have any questions concerning this matter please feel free to call me at (910) 796-7323 or email me at christine.nelson@ncmail.net. Sincerely, m q Christine Nelson Environmental Engineer GDS/can: S:\WQS\STORMWATER\HDDINFO\2009\090918.nov09 cc:. Ted Miller, Kimley - Horn and Associates Christine Nelson Wilmington Regional Office Page 2 of 2 Nelson, Christine From: Nelson, Christine Sent: Friday, November 13, 2009 2:07 PM To: 'Ted. Miller@kimley-horn.com'; 'david.towler@usmc.mil' Cc: Russell, Janet; Rachel.Oberle@kimley-horn.com Subject: 2nd request for additional info: SW No. 090918 Lincoln Park School Attachments: 090918 nov09.pdf Gentlemen, The 2nd request for additional information for SW Project SW8 090918 — Lincoln Park School Development should be attached. Copies will also be sent in the mail. Let me know if you have questions! Thanks, Christine Christine Nelson Environmental Engineer NC DWQ - Stormwater Program Wilmington Regional Office 910-796-7323 E-mail correspondence to and from this address may he .subject to the North Carolina Public Records Law and may be disclosed to third parties. Nelson, Christine From: Nelson, Christine Sent: Tuesday, November 10, 2009 10:01 AM To: 'Ted. Miller@kimley-horn.com'; david.towler@usmc.mil; Rachel.Oberle@kimley-horn.com Cc: Russell, Janet; Lewis, Vincent Subject: RE: SHWT for Lincoln Park School That's really up to Vincent. He will most likely want to meet someone there to ensure he's in the right spot. Christine E-mail correspondence to andfrom this address may be subject to the North Carolina Public Records law and may be disclosed to third parties. From: Ted.Miller@kimley-horn.com [mailto:Ted.Miller@kimley-horn.com] Sent: Monday, November 09, 2009 6:48 PM To: Nelson, Christine; david.towler@usmc.mil; Rachel.Oberle@kimley-horn.com Cc: Russell, Janet; Lewis, Vincent Subject: RE: SHWT for Lincoln Park School Thanks for the heads up Christine. Would it be helpful to have the geotechnical consultant meet Vincent on -site? Ted Miller, P.E. Klmley-Horn and Associates, Inc. Direct: 757-548-7333 From: Nelson, Christine[mailto:christine.nelson@ncdenr.gov] Sent: Monday, November 09, 2009 3:22 PM To: Miller, Ted; david.towler@usmc.mil; Oberle (Watts), Rachel Cc: Russell, Janet; Lewis, Vincent Subject: SHWT for Lincoln Park School Ted, I reviewed the amendment to the soils report and talked with Vincent Lewis, the Division's regional Soil Scientist. Vincent helps the stormwater team in Wilmington by verifying all of the SHWT elevations for proposed infiltration systems. I am still concerned about the seasonal high water table (SHWT) call in relation to the soil mottling and soil moisture found on site. Due to the uncertainty with this site and the SHWT call, I have asked Vincent to verify the SHWT elevation for this wet detention pond. Please complete the attached form and submit it to him to schedule a site visit. When I spoke to him earlier today, he indicated that he is currently available early next week. Depending on his findings during the site visit to the school, you might also consider asking him to look at the ponds that have been proposed for the residential portion of this project while he is there. I am still reviewing the submitted information, but wanted to get this going as soon as possible to keep the process moving. I should be able to finish reviewing the rest of the submitted information on Tuesday or Thursday (Wednesday is a holiday). Christine Christine Nelson U.S. ARtb1Y CORPS OF ENGINEERS WIL MINGI'O` DISTRICT Action Id, 2008 2570 County: OnsluwV U'S-G.S. Quad: Camp Leieune NOTIFICATION Oh.1URISDICfIONAL DETERMINATION Property O,.cncr/A ,ene USIAIC—Camp Leiellne Consult:me Ceo-Marine Incornuraled Address: attn: Marty Korenek attn: Jef DeBerry PSC Box 20004 2713 Nlaeruder BM], Suite 1) Cants Leieune. NC 29542 1lampton, VA 23666 Properly description Size (acres) + 2000 acres Nearest Town Cantu Leieune Nearest Waterway Northeast and Nety River Watersheds River Basin White Oak USGS H(JC' 030300011 Coordinates N 34.7247 W 77.3770 Location description The review area is located within Camp Leieune specifically within Camp .lohnson and a protect area known as the PIIV 1-4 on the upposiie banks of the Northeast Creek from Camp Johnson, Onslow County. I ndicate NN'hich of the Following Apply: A. Preliminary Determination Based on preliminary information, there may be wetlands on the above described property. We strongly suggest you have this property inspected to determine the extent ol' Department of the Anny (DA) jurisdiction. To be considered final, it jurisdictional determination must be verified by the Corps. This preliminary determination is not an appealable action under the Regulatory Program Administrative Appeal Process ( Reference 33 CFR Part 331). 13. Approved Determinatiou There are Navigable Waters of the United States within the above described property subject to the permit requirements of Section 10 of the Rivers and Harbors Act and Section 404 of the Clean Water Act. Unless there is a change in the law or our published regulations, [his determination may be relied upon fir a period not to exceed live years from the date of this notification. There are wetlands on the above described property subject to the permit requirements of Section 404 of the Clam Water Act (C'WA)(33 USCS 1344). Unless there is it change in the law or our published regulations. this determination may be relied upon for a period not to exceed five years from the dote of this notification. _ We strongly suggest you have the wetlands on your property delineated. Due to the size of your property and/or our present workload, the Corps may not be able to accomplish this wetland delineation in :I timely manner. For a more timely delineation, you may wish to obtain a consultant. To be considered final, any delineation must be verified by the Corps. _ The wetland on your property have been dulineated and the delineation has bcco verified by the Corps. We strongly suggest you h:rve this delineation surveyed. Upon completion. this survey should be reviewed and verified by the Corps. Once serif icd. this survey will provide an accurate depiction of all areas subject to CW A jurisdiction on your property which, provided there is no change in the law or our published regulations, may be relied upon far a period not to exceed five years. The wetlands have been delineated and surveyed and are accurately depicted on the plat signed by the Corps Regulatory Official identified below on 3/16/2009. Unless there is a change in the law or our published regulations, this 'determination may be relied upon for a period not to exceed five years from the date of this notification. Therc are Ito w'aters of the U.S.. to include wedmnls. present on the above described property which are subject to the permit requirements of Section 404 of the Clean Water Act (33 USC 1344). Unless there is it chance in the law or our published regulation, this determination may be relied upon for it period not to exceed five years from [hc (fate of this notification. _ "file property is located in )tte of the 20 Coastal Counties subject to regulation under the Coastal Area Munagcmmit Act (LAMA). You should coutact the Di%ision ofCoastal Nianalmuent in Washington. NC, at (252) 94694S 1 to determine5 their regtliremepl3. D E C E 0 V E D Pat3c I of 2 NOV 0 5 2009 PRO,I # Action ID: Placement of dredged or lilt material within waters of the US arid .or wctIandn without a Department of the Army permit may consutute a violation of Section 301 of the Clean Water Act (33 USC 131 1). I f cou have any questions regarding this Lie tertninal ion and/or the Corps regulatory program, please conflict Brad Sbacer al 910-2514611. C. Basis For Determination The subject area exhibits wetland criteria as described in the 1987 Corps Delineation Manual and is abutting or represented by relatively permanent waterbodies which ultinmteiv flow into the Northeast Creek and NewRiver, hoth traditional navisable waters of the US. D. Remarks The site wits lield verified by Fmihv 11t vhes and Brad Shaver on 5/27/08 6/24108 7/29/08 8/12/08. 8/19/08. 8/26/08, 9/9/08, and 9/16/08. E. Appeals Information (Phis Infortuation applies only to approved jurisdictional determinations as indicated in 13. above) Phis correspondence constitutes an approved jurisdictional dctenninnticnt for the above described site It' you object to this determination, you may request an administrative appeal wider Corps regulations at 33 CFR p;ut 331. Enclosed you will find a Nutitication of Appeal Process (NAP) fact sheet and request for appeal (RFA) form. If you request to appeal this determination you must submit a completed RFA form to the following address: District Engineer. Wilmington Regulatory Division Attn: Brad Shaver. Project rblanager, Wilmington Regulatory Field Office 69 Darlington Ave Wilmington. North Carolina 28402-1890 III order for rut RFA to be accepted by the Corps. the Corps must determine that it is complete. that it meets the criteria fin' appeal under 33 C'I--R part 331.5, and that it has been received by the District Office within 60 days of the date of lte NAP. Should you decide to Submit an RFA form. it must be received in the above address by 5/I6/2009. **It is not necessary to submit an RFA fonn to the District Office il'you do not object to the determination in this correspondence.** Corps ILcgulaurry 01,flcial: —/-0 Date 3/16/2009 Expiration Date 3/1612014 The Wilmington District is committed to providing the highest level of support to the public. To help us ensure we continue to do so, please complete the attached customer Satisfaction Survey or visit Imp: wtr w. sim msuce.at to complete the stir vey online. Copy furnished: Charles F. Riggs & .Associates, Inc. aun: Charles Riggs, P.L.S P.O. Box 1570 Jacksom ille, NC 28541 Page 2 of 2 �E tC E 9 V ED �JJ�{uu NOV 0 5 2009 DWQ NOTIFICATION OF ADMINISTRATIVE APPEAL OPTIONS AND PROCESS AND REQUEST FOR APPEAL Applicant: USMC - Camp Le'eune File Number: 2008 2570 Date: 3/16/2009 Attached is:D See Section below INITIAL PROFFERED PERMIT (Standard Permit or Letter of permission A PROFFERED PERMIT (Standard Permit or Letter ofpermission) B PERMIT DENIAL C APPROVED JURISDICTIONAL DETERMINATION D PRELIMINARY JURISDICTIONAL DETERMINATION E SECTION l - The following identifies your rights and options regarding an administrative appeal of the above decision. Additional information may be found at http://www.Lisace.army.mil/iilet/functions/ew/cecwo/rea or Corps s regulations at 33 CFR Part 331. A: INITIAL PROFFERED PERMIT: You may accept or object to tlue permit. • ACCEPT: Iryou received a Standard Permit, you may sign the permit document and return it to the district engineer for final authorization. If you received a Letter of Permission (LOP), you may accept the LOP and your work is authorized. Your signature on the Standard Permit or acceptance of the LOP means that you accept the permit in its entirety, and waive all rights to appeal the permit, including its terms and conditions, and approved jurisdictional determinations associated with the permit. • OBJECT: 1f you object to the permit (Standard or LOP) because of certain terms and conditions therein, you may request that the permit be modified accordingly. You must complete Section II of this form and return the form to the district engineer. Your objections must be received by the district engineer within 60 days of the (late of this notice, or you will forfeit your right to appeal the permit in the future. Upon receipt of your letter, the district engineer will evaluate your objections and may: (a) modify the permit to address all of your concerns, (b) modify the permit to address some of your objections, or (c) not modify the permit having determined that the permit should be issued as previously written. After evaluating your objections, the district engineer will send you a proffered permit for your reconsideration, as indicated in Section B below. B: PROFFERED PERMIT: You may accept or appeal the permit • ACCEPT: If you received a Standard Permit, you may sign the permit document and return it to the district engineer for final authorization. If you received a Letter of Permission (LOP), you may accept the LOP and your work is authorized. Your signature on the Standard Permit or acceptance of the LOP means that you accept the permit in its entirety, and waive all rights to appeal the permit, including its terms and conditions, and approved jurisdictional determinations associated with the permit. APPEAL: If you choose to decline the proffered permit (Standard or LOP) because of certain terms and conditions therein, you may appeal the declined permit under the Corps of Engineers Administrative Appeal Process by completing Section 11 of this form acid sending the form to die division engineer. This form must be received by the division engineer within 60 days of the date of this notice. C: PERMIT DENIAL: You may appeal the denial of a permit under the Corps of Engineers Administrative Appeal Process by completing Section 11 of this form and sending the form to the division engineer. This form most be received by the division engineer within 60 days of the date of this notice. D: APPROVED JURISDICTIONAL DETERMINATION: You may accept or appeal the approved JD or provide new information. • ACCEPT: You do not need to notify the Corps to accept an approved JD. Failure to notify the Corps within 60 days of the date of this notice, means that you accept the approved 1D in its entirety, and waive all rights to appeal the approved JD. • APPEAL: If you disagree with the approved JD, you may appeal the approved 1D under the Corps of Engineers Administrative Appeal Process by completing Section II of this form and sending the form to the district engineer. This form must be received by the division engineer within 60 days of the date of this notice p� 0 UU n NOV 0 5 2009 E: PRELIMINARY JURISDICTIONAL DETERMINATION: You do not need to respond to the Corps regarding the preliminary JD. The Preliminary JD is not appealable. If you Wish, you may request an approved JD (which may be appealed), by contacting the Corps district for further instruction. Also you may provide new information for further consideration by the Corps to reevaluate the JD. SECTION II - REQUEST FOR APPEAL or OBJECTIONS TO AN INITIAL PROFFERED PERMIT REASONS FOR APPEAL OR OBJECTIONS: (Describe your reasons for appealing the decision or your objections to an initial proffered permit in clear concise statements. You may attach additional information to this form to clarify where your reasons or objections are addressed in the administrative record.) ADDITIONAL INFORMATION: The appeal is limited to a review of the administrative record, the Corps memorandum for the record of the appeal conference or meeting, and any supplemental information that the review officer has determined is needed to clarify the administrative record. Neither the appellant nor the Corps may add new information or analyses to the record. However, you may provide additional information to clarify the location of information that is already in the administrative record. POINT OF CONTACT FOR QUESTIONS OR INFORMATION: If you have questions regarding this decision If you only have questions regarding the appeal process you and/or the appeal process you may contact: may also contact: Project Manager Mr. Mike Bell, Administralive Appeal Review Officer Brad Shaver CESAD-ET-CO-R 69 Darlington Ave U.S. Army Corps of Engineers, South Atlantic Division Wilmington, NC 28402-1890 60 Forsyth Street, Room 9M 15 Atlanta, Georgia 30303-8801 RIGHT OF ENTRY: Your signature below grants the right of entry to Corps of Engineers personnel, and any government consultants, to conduct investigations of the project site during the course of the appeal process. You will be provided a 15 day notice of any site investigation, and will have the opportunity to participate in all site investigations. Date: Telephone number. Signature ofappellant or agent. For appeals on Initial Proffered Permits and approved .Jurisdictional Determinations send this form to: District Engineer, Wilmington Regulatory Division, Attn: Brad Shaver, Project Nlanager, Wilmington Regulatory Field Office, P.O. Box 1890, Wilmington, North Carolina 28402-1890 For Permit denials all(] Proffered Permits send this form to: Division Engineer, Commander, U.S. Army Engineer Division, South Atlantic, Attn: Mr. Mike Bell, Administrative Appeal Officer, CESAD-ET-CO-R, 60 Forsyth Street, Room 9M15, Atlanta, Georgia 30303-8801 E C E V ED NOV 0 5 2009 PROJ # STORMWATER CALCULATIONS LINCOLN PARK SCHOOL DEVELOPMENT At CAMP LE.IEUNE ONSLOW COUNTY, NORTH CAROLINA PREPARED FOR: North Carolina Department of Environment and Natural Resources PREPARED BY: KIMLEY-HORN AND ASSOCIATES, INC. 501 INDEPENDENCE BOULEVARD SUITE 300 CHESAPEAKE, NC 23320 NOVEMBER 2009 KI-IA #1 16319000 E C E I V ED ►unUS NOV 0 5 2009 PROJ # DW ®�® Kimley-Horn `® and Associates, Inc. Wet Detention Basin Stage -Storage Project Information Project Name: Lincoln Park School Development at Camp Lejeune KHA Project #: 116319000 Designed by: RAO Date: 10/22/2009 Checked by: TM Date: 10/22/2009 BMP: BMP #6 WET DETENTION BASIN 1 Pond Contour Incremental Accumulated Stage, Countour Contour Area Area Volume Volume, S Z sq ft acre cu ft on It ft 8.00 29,451 0,68 0 0 0,00 9,00 31,780 0.73 30,616 0 1.00 10.00 34,166 0.78 32,973 0 2.00 11.00 36,608 0,84 35.387 35,387 3.00 12.00 39,107 0,90 37,858 73,245 4.00 13,00 41,663 0.96 40.385 113,630 5.00 13.50 42,962 0,99 21.156 134,786 5.50 14.00 46,855 1.08 22,454 157,240 6.00 14.50 50, 885 1.17 24,435 181,675 6.50 15,00 66,031 1.52 29.229 210,904 7.00 16,00 70,243 1.61 68,137 279,041 8.00 17.00 74,555 1.71 72,399 351,440 9.00 17,50 76, 749 1.76 37,826 389,266 9.50 18.00 78,968 1.81 38,929 428,195 10.00 18,50 81,212 1,86 40,045 468,240 10.50 19.00 83,481 1.92 41,173 509,414 11.00 20,00 88,095 2.02 85,788 595,202 12.00 Foreba Contour Incremental Accumulated Stage, Counlour Contour Area Area Volume Volume, S Z so ft acre cu ft on ft ft 8-00 4,751 0,11 0 0 0.00 9.00 5,636 0.13 5, 194 0 1,00 10.00 6,587 0.15 6,112 0 2.00 11.00 7,604 0.17 7,096 7,096 3.00 12.00 8.685 0.20 8,145 15,240 4.00 13,00 9,830 0.23 9,258 24,498 5.00 13.50 10,426 0.24 5,064 29,562 5.50 14.00 11,039 0.25 5,366 34,928 6.00 14.50 12,549 0.29 5,897 40,825 6.50 Pond + Foreba Contour Incremental Accumulated Stage, Countour Contour Area Area Volume Volume,S Z sq ft acre cu ft cu ft it 8.00 34.202 0.79 0 0 0.00 9.00 37,416 0.86 35,809 0 1.00 10,00 40,753 0.94 39,085 0 2.00 11.00 44,212 1.01 42,483 42,483 3.00 12.00 47,792 1,10 46,002 88,485 4,00 13.00 51.493 1.18 49,643 138,127 5.00 13.50 53.388 4.23 26.220 164,347 5.50 14.00 57,894 1.33 27,821 192,168 6.00 14.50 63,434 1.46 30,332 222,500 6,50 15.00 66,031 1.52 32,366 254,866 7.00 16.00 70,243 L61 68,137 323,003 8.00 17.00 74,555 1,71 72,399 395,402 9.00 17,50 76,749 1.76 37,826 433,228 9250 18.00 78,968 1.81 38,929 472,157 10.00 18.50 81,212 1.86 40,045 512,202 10.50 19.00 83,481 1,92 41,173 553.376 11.00 2000. 88,095 2,02 85,788 639.164 12,00 Sediment Storage VWSE Top of Riser Sediment Storage NWSE Sediment Storage NWSE Top of Riser �ECEoVED NOV 0 5 2009 . DWQ PROJ # PlJ Kimley-Horn � ® and Associates, Inc. Wet Detention Basin Design Summary Project Information Project Name: Lincoln Park School Development at Camp Lejeune KHA Project #: 116319000 Designed by: RAO Date: 11/15/2009 Checked by: TM Date: 11/15/2009 Design Resource: NCDENR - Stormwater Best Management Practices Manual ( July 2007) Site Information Sub Area Location: BMP # 6 Drainage Area (DA) = 20.28 Acres Impervious Area (IA) = 8A3 Acres Percent Impervious (1) = 41.6 % Required Storage Volume (Water Duality) Design Storm = 1,5 inch Determine Rv Value (imin) = 0.05 +.009 (I) = 0.42 Storage Volume Required = 46,832 of (above Permanent Pool) Storage Volume Provided = 279,990 Required Surface Area Average Depth Calculated= 3.3 ft SA/DA = 4,16 (90%TSS Removal via Pond) Min Req'd Surface Area = 36,749 sf (at Permanent Pool) Surface Area Provided = 57,894 sf (at Permanent Pool) - Required Length to Width Ratio 1.5 to 1 Length to Width Ratio Provided = 3.0 Required Length of flowpath to Width Ratio 3 to 1 Length of flowpath to Width Ratio Provided = 3.50 Pretreatment Device Forebay Required Forebay Sizing Required Volume = 20.00% of Permenant Pool Permanent Pool Volume = 192,168 of Required Forbay Volume = 38,434 cf Forebay Volume Provided = 34,928 cf 18A 8% of Permenant Pool Summary of Proposed Pond Bottom of Pond Elevation = 10.00 ft Sediment Storage Depth = 2.00 ft. Permanent Pool Elevation = 14.00 ft Temporary Pool Elevation = 18.00 ft Top of Pond Elevation = 20.00 ft Permanent Pool Surface Area = 57,894 sf Temporary Pool VOlume (water quality storage) = Area @ Top of Temporary Pool = 279,990 of DT r� sf � �-C CPjV D 78,968 Side Slopes of Pond = 4 : 1 Volume of Forebay 1 = 34,928 of NOV 9 0 2009 Length to Width Ratio = 3 : 1 Length of flowpath to Width Ration = 3.5 :1 BY: Kimley-Horn ®® and Associates, Inc. Wet Detention Basin ORFICE EQUATION Project Information Project Name: Lincoln Park School Development at Camp Lejeune KHA Project #: 116319000 Designed by: RAO Date: 9/22/2009 Checked by: TM Date: 10/6/2009 Sub Area Location: BMP #1 Water Quality Orifice Orfice Equation Determination of Water Quality Volume Drawdown Time Temporary Pool Elev (Riser Elev) = 18 ft Permanent Pool Elev (Invert of Orfice) = 14 ft Diameter of Orfice = 2.5 in Orifice Discharge Equation: Q = CDA(2gHo)112 where, CD = description A = Trr2 g = force of gravity Ho = H/3 0.6 (unitless) 0.0341 ft2 32.2 ft/sec2 1.30 ft Diameter Ho = (Pond Elevation - Elevation of Orfice Invert) + (Orfice Diameter/2) Q = 0.187 cfs Required Temporary Storage = 46,832 ft3 Drawdown Time, t = 250,383 sec t = 69.55 hours t = 2.90 days E C E n V ED NOV 0 5 Zoos DWQ PROJ # ®® Kimley-Horn I®_ and Associates, Inc. Pre -Development Time of Concentration Calculation Project Information Project Name: Lincoln Park Development at Camp Lejeune KHA Project #: 16319000 Designed by: RAO Date: 11/l/2009 Checked by: TM Date: 11/2/2009 To=0.225'L^(.42)`S"(-0. 19)'C^(-1) (Seelye Equation) Seelye Equation Reference - Data Book for Civil Engineers Vol. I - Design 2nd Edelion (1951) By E.E. Seelye Col/all Overland Flow Time (Pervious) L = 200 it (200' max) S = 0.006 (lift C = 0.25 Tc= 22.0min V = 0.151 his ' Enter Values' Outtall Overland Flow Time (Pervious) L = 200 it (200' max) S = 0.004 fill C = 0.25 Tc= 23.8 min V= 0.f40 US Blvd ' Enter Values' Overland Flow Time (Pervious) L =P0.25 ft (200' max) S =fill C = Tc= 22.R min V = 0.146 his ' Enter Values' Overland Flow Time (Impervious) L = II (200' max) S = 0.004 MI C= 0.9 Tc = � O.0 min V = I1DIV/0! his Overall Tc= 61 min Overland Flow Time (Impervious) L = fl (200' max) S = 0.004 IVII C= 0.9 Tc-1 0 U min V = 401V/0! fl/s Overall Tc= 126 min Overland Flow Time (Impervious) L=�f11200' max) S = 0.004 it'll C= 09 Tc = 0.01 Tin V = 801V/01 [Us Overall Tc= 67 min Shallow Concentrated Flow = 1160 it V = 0.5 his Tc = 38.7 min ChannellGutter Flow Time L= 0 V = 2 fUs Tc=1 0.01 lllln Shallow Concentrated Flow L 3056 fl V = 0.5 fUs Tc = Li2L9 min ChmmellGuttcr Flow Time L= ft V = 2 (Us Tc=1 0.01min Shallow Concentrated Flow L = 1308 it V = 0.5 Ns Tc = 1 43 61 min ChannellGutter Flow Time L= V= Tc = F W E P V E1\11r OY 0 5 2000 Dwa Pan.l t1 r_ Lincoln Park Schoo Nodes A Stage/Area V Stage/Volume T Time/Stage M Manhole Basins 0 Overland Flow u SCS unit Hydro 5 Santa Barbara Links P Pipe W Weir C Channel D Drop Structure B Bridge R Rating Curve H Breach T:Pre-Bound North Interconnected Channel and Pond Routing Model (ICPR) 02002 Streamline Technologies, Inc. Lincoln Park School Development at Camp Lejeune ==== Basins =__ ----- =_____________________________________________________________________ Name: Pre -Area NorLh Group: BASE Unit Nydrograph: Uh464 Rainfall File: Rainfall Amount (in): 0.000 Area(ac): 48.290 Curve Number: 55.00 DCIA(8): 0.00 Node: Pre -Bound North Type: SCS Unit Nydrograph Peaking Factor: SLorm Duration(firs) Time of Conc(min): Time Shift(hrs): Max Al 1. oo-:able '�(cfs): Status: Onsite 484.0 0.00 61.00 0.00 999999.000 ----------------------------------------------------------------------------------------------------- Name: School Site Hode: BMP46i n fta I Status: Onsite Group: BASE 'Type: SCS Unit Nydrograph Unit Hydrograph: Uh-164 Rai.nfal.l. File: Rainfall Amount (in): 0.000 Area(ac): 20.300 Curve Number: 80.06 DCIA(%): 0.00 Peaking Factor: 484.0 SLorm Duration(hrs): 0.00 Time of Conc(min): 25.00 Time Shift(hrs): 0.00 Naa Allowable n(cfs): 999999.000 =-== Nodes =_________—____—___--- =- ---- '__----------------------- ___—_=--=_= Name: BHP46 Group: BASE Type: Stage/Area Stage(ft) Area(ac) 8.000 0.7900 9.000 0.8600 10.000 0.9400 11.000 1.01.00 12.000 1.1000 13.000 1.1800 13.500 1.2300 14.000 1.3300 14.500 1.4600 15.000 1.5200 16.000 1.6100 17.000 1.7100 17.500 1.7600 18.000 1.8100 18.500 1.8600 19.000 1.9200 20.000 2.0200 Base Flow(cfs): 0.000 Init Stage(ft): 14.000 'darn Stage(ft): 20.000 ----------------------------------------------------------------__ Name: Post -Bound IJ Base F1ow(cfs) 0.000 I111.L Stage(ft) 13.000 Group: BASE Warn Stage(f L): 14.500 Type: Time/Stage . anE C E I V E� Inll'fC(nwCLed Channel nd Pond Running Modcl (ICI'R) :J2002 Shcwnlinc Technologies. Inc. �^�S NOV ���� In I ul 6 DWQ PROJ # Lincoln Park School Development at Camp Lejeune Time(hrs) Stage(ft) _______________ _______________ 0.00 13.000 10.00 14.500 12.00 14.500 120.00 13.000 __________________________________________________________________________________________ Name: Pre -Bound North Base Flow(cfs): 0.000 Init Stage(ft): 11.500 Group: BASE Warn Stage(ft): 13.300 Type: Time/Stage Time(hrs) Stage(ft) 0.00 11 500 10.00 15.500 14.00 15.500 120.00 11.500 ----------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------------ -__= Drop Structures_________________________________________________________--_— _________________________________________________________ __________________ ________________________________ __-- Name: BMP116 OUC From Node: 13MPA6 Leng th(ft): 264.00 Group: BASE To Node: Post -Bound N Count: 1 UPSTREAM DOWNSTREAM Friction Equation: Average Conveyance Geometry: Circular Circular Solution Algorithm: Automatic Span(1 n): 24.00 24.00 Flow: Both Rise(in): 24.00 24.00 Entrance Loss Coef: 0.500 lnvert (lt): 13.700 13.000 Exit Loss Coe C: 1.000 Manning's N: 0.013000 0.013000 OuLlet Ctrl Spec: Use do or tw Top Clip(in): 0.000 0.000 Inlet Ctrl Spec: Use do But Clip(in): 0.000 0.000 Solution Incs: 10 Upstream FHWA Inlet Edge Description: Circular Concrete: Groove end projecting Downstream ❑HWA Inlet Edge Description: Circular Concrete: Groove end projecting '^ Weir 1 of 2 for Drop StrUCLUre 13MP116 Out TABLE Count: 1 Bottom Clip(in): 0.000 Type: Horizontal Top Clip(in): 0.000 Flew: Both Weir Disc Coef: 3.200 Geometry: Circular Orifice Disc Coef: 0.600 Span (in): 3'0.00 Invert(ft): 18.000 Rise(in): 36.00 Control E1ev(ft): 18.000 • Weir 2 of 2 for Drop Structure BMPR6 Out TABLE Count: 1 Bottom Clip(in): 0.000 Type: Vertical: t7avis Top Clip(in): 0.000 Flow: Both Weir Disc Coef: 3.200 Geometr v: Ci. rculai: Orifice Disc Coef: 0. 600 Span(in): 2.50 lnvert(ft): 14.000 F.ise(in): 2.50 Control Elev(ft): 14.000 E C E V D,,J�Interconnected Channeland fond Routing Model (IC'I'R) �P12002 Streamline 1'echnulonics. Inc. cc 2 ul 6 NOV 0 5 2009 DWQ PROJ # Lincoln Park School Development at Camp Lejeune Weirs =-------------------------- ---- --- ---- Name: Group: BASE Flow: Both Type: Horizontal Span(in): 0.00 Rise(in): 0.00 Invert(ft): 0.000 Control Elevaticn(ft): 0.000 Bottom Cj.i.p(i.n): 0.000 Top Cl. ip(.i.n): 0.000 Weir Discharge Coef: 3.200 Orifice Discharge Coe[: 0.600 From Node: To Node: Count: 1 Geometry: Circular TABLE --== H_drology Simulations=-------------------------------------------_-__----_------- Name: FIFTY Filename: K:\HR0-Civil\116319000 - Camp Lejeune ES\EngineeringADrainageA653\ICPR\FIFTY.R32 Override Defaults: Yes Storm Duration(hrs): 24.00 Raj.ncal.l File: Scsiii. Rainfall Amount (in): 9.98 Time(hrs) Print Inc(nin) 10.000 15.00 14.000 5.00 120.000 15.00 ____________________________________________________________________________________________________ Name: HUNDRED F,i.l.ename: K:AHRO Civil.A1.16319000 - Camp Lejeune ES\EngineeringADrainageA65%\ICPR\HUNDRED.R32 Override Defaults: Yes SLorm Duration(hrs): 24.00 Rainfall File: .Scsiii Rainfall Amount (in): 11.56 Time(hrs) Print Inc(min) 10 000 15.00 14.000 5.00 120.000 15.00 ____________________________________________________________________________________________________ Wajm2: NC Filename: K:\HRO-Civil\116329000 - Camp Lejeune ES\Engineering\Drai.nage\65%\ICPR\NC.R32 Override Defaults: Yes Storm Duration(hrs): 24.00 Rainfall File: Scsiii Rainfall Amount (in): 1.50 Time(hrs) Print Inc(min) 10.000 15.00 14.000 5.00 120.000 ls.00 � E @ V � D Inlerconnec(cd Channel and Pond Ruwine Mudd (ICPR) �D2002 Sucamlinc Technolo�aics. Inc. NO' 0 5 9 Page 3 0l G DWQ PROJ # Lincoln Park School Development at Camp Lejeune ---------------------------------------------------------------------------------------------------- Name: ONE Filename: K:\HRO Civil\116319000 - Camp Lejeune ES\Engineering\Drainage\65%\ICPR\ONE.R32 Override Defaults: Yes Storm Duration(hrs): 24.00 Rainfall File: Scsiii Rainfall Amount(in): 3.68 Time(hrs) Print Inclmin) ------------------------------ 10.000 15.00 14.000 5.00 120.000 15.00 ---------------------------------------------------------------------------------------------------- Name: TEN Filename: K:\HrO-Civil\ll 6319000 - Camp Lejeune ES\Engineering\Drainage\55',\ICPR\TEN.R32 Override Defaults: Yes Storm Duration(hrs): 24.00 Rainfall. File: Scsiii Rainfall Amount (in): 6.91 Time(hrs) Print Inc(min) ---------------------- 10.000 15.00 14.000 5.00 120.000 15.00 Routine Simulations ____________________________________—___------ Name: FIFTY Hydrology Sim: FIFTY F.i.lename: K:\HRO-Civil\116319000 - Camp Lejeune ES\Engineering\Drainage\65%\ICPR\FIFTY.132 Execute: Yes Restart: No Patch: No A.l.tei:native: No Max Delta Z(ct): 1.00 Delta Z Factor: 0.00500 Time Step Optimizer: 10.000 Start Time(hrs): 0.000 End Time(hrs): 90.00 Hin Calc Ti.me(sec): 0.5000 Max Cal.c Time(sec): 90.0000 Boundary Stages: Boundary Flows: Time(hrs) Print Inc(win) -------------- 10.000 15.000 14.000 5.000 120.000 15.000 Group Run BASE Yes ---------------------------------------------------------------------------------------------------- Name: HUNDRED Hydrology Sim: HUNDRED Filename: K:\HRO Civil\116319000 - Camp Lejeune ES\Engineering\Drainage\650:\ICPR\HUNDRED.132 Execute: Yes Restart: No Patch: No Alternative: No In I crco n nccI cd Chunnd ;md Pond Reuling Model (ICPR) D2002 SIncmuIinc lbchnolug ics, Inc. R NOV 2009 �Pagc d of C DWQ PROD # Lincoln Park School Development at Camp Lejeune Max Delta Z(ft): 1.00 Time Step Optimizer: 10.000 Start Time(hrs): 0.000 Min CalC Time(sec): 0.5000 Boundary Stages: T:!.me (hrs) Print lnc (inin) 10.000 13.000 14.000 3.000 120.000 15.000 Group Fun BASE Yes Delta Z Factor: 0.00500 End Time (hrs): 90.00 Max Cale Time(sec): 90.0000 Boundary Flows: ________________________________________________ Name: NC ) Hydrology Sim: NC Filename: K:AHP0 Civil\1163]9000 - Camp Lejeune ES\EngineerinaADrainageA65°\1CPR\NC.132 Execute: Yes Restart: No Patch: No Alternative: Ho Max Delta Z(ft): 1.00 Delta Z Factor: 0.00500 Time Step Optimizer: 10.000 .Start Time(hrs)i 0.000 End Time(hrs): 90.00 Min Calc Tile(sec): 0.5000 Max Calc Time (sec) 90, 0000 Boundary Stages: Boundary Flows: Time (firs) Print Inc(min) _______________ _______________ 10.000 15.000 14.000 5.000 120.000 15.000 Group Run _______________ ----- BASE Yes ________________________________________________ Name:'OHE ) Hydrology Sim: ONE Filename: K:\HRO—Civil\116319000 - Camp Lejeune ES\Engineering\Drainage\654\ICPR\ONE.I32 Execute: Yes Restart: No Patch: No Alternative: No Max Delta Z(ft): 1.00 Delta Z Factor: 0.00500 Time Step Optimizer: 10.000 Start Time(hrs): 0.000 End Time(hrs): 90.00 Min Calc Tirne(sec): 0.5000 Max Calc Time(sec) : 90.0000 Boundary Stages: Boundary Flows: Time (h Ls) Pri. III: LIc(min) _______________ _______________ 10.000 15.000 14.000 5.000 120.000 15.000 Group Run p E C E 9 V E I ntcfenn 11CCICcl C'hunncl ;Ind Pond Room it,—, Mudcl (IC'19t) NOV 0 C 2009 DWO PROJ # Lincoln Park School Development at Camp Lejeune BASE Yes -----------------------------------------------------------------------------------'_-----_------_-_ Name: TEN Hydrology Sim: TEN Filename: K:\IIRO-Civil\116319000 - Carnp Lejeune ES\Engineering\Drai.nage\65%\ICPR\TEN.132 Execute: Yes Restart: No Patch: No Alternative: No Max Delta Z(ct): 1.00 Delta Z Factor: 0.00500 Time Step Optimizer: 10.000 Start 'Pime(hrs): 0.000 End Time(hrs): 90.00 Min Calc Time(sec): 0. 5000 Max Gals Time(sec): 90.0000 Boundary Stages: Boundary Flows: Time(hrs) Print Inc(rnin) 10.000 15.000 14.000 5.000 120.000 15.000 Group Run BASE Yes Boundary Conditions -_—_----------------------------- ------------------------ ----- R E C E a V ED I n t nl Cond necd Chunncl and ],()tic] Routing Nlo(IcI(ICPR) D2002 Strcan)I nc TccJmologws. Inc. NOV 0 5 2009 Pugu G of 6 DWQ PROJ # Lincoln Park School Development at Camp Lejeune Max Time Max Warning Max Delta Max Surf Max Time Name Group Simulation Stage Stage Stage Stage Area inflow hrs ft _t ft2 hrs BMPe6 BABE NC 24.39 14.399 20.000 0.0048 62443 12.42 Post -Bound N BASE NC 10.02 14.500 14.500 0.0038 0 40.51 Pre -Bound North BASE NC 10.02 15.500 15.500 0.0100 0 0.00 �BMP$6 1 BASE ONE 24.37 15.907 20.000 0.0050 69767 12.33 Post -Bound N BASE ONE 10.02 14.500 14.500 0.0038 0 40.50 Pre -Found North ' .=.?SE `ONE 10.02 15.500 15.500 0.0100 0 13.00 BMP§' .... .. - =EN_� i8.38 18.148 20.000 0.0050 79487 12.33 Post -Bound N BASE TEN 10.02 14.500 14.500 0.003"c 0 18.38 Pre -Bound North F;,SE TEN 10.02 15.500 15.500 0.0100 0 12.75 DECEIVED NOV 0 5 2009 DWO PROJ # Interconnccicd Channel and Pond Routine Nludel (ICPR) D2002 Siroa nhilc fcchnolucics. Inc. Max Max Time In`1cw Outflow cfs hrs 3.533 40.51 0.079 0.00 0.000 0.00 26 ?28 40.50 0.209 0.00 5.391 0.00 66.916 18.38 2.021 0.00 42.282 0.00 Max Outflow cffs 0.079 0.000 0.000 0.209 0.000 0.000 2.021 0.000 0.000 Paec I of I 2 / FLAT go -no rl-% b ire N School BMP Outfall Ditch - 2 cfs Project Description;` , Friction Method Manning Formula Solve For Normal Depth —y I�PU7 Daly it aii?G,l` dl' "' l u u fi r =o'wsC-Rv�}TI V�'LY Roughness Coefficient 0.020 �0 Channel Slope 0.00500 f ift LU Left Side Slope 3.00 ft/ft (H:V) 14I0NM Yt7 wwC IT G Right Side Slope 3.00 ft/ft (H:V) f Bottom Width 2.00 2.00 ft 0I0 Discharge ft'/s Results.- -------------- Normal Depth 0.33 It Flow Area 0.98 'ft' Wetted Perimeter 4.08 ft Top Width 3.97 ft Critical Depth 0.27 ft Critical Slope Velocity 0.01011 ft/ft 2.03 ft/s 1/ Y ; Velocity Head 0.06 ft Specific Energy 0.39 it Froude Number 0.72 Flow Type Subcritical Downstream Depth 0.00 ft Length 0.00 ft Number Of Steps 0 GVF Output Data Upstream Depth 0.00 ft Profile Description Profile Headloss 0.00 ft Downstream Velocity Infinity ft/s Upstream Velocity Infinity ft/s Normal Depth 0.33 ft Critical Depth 0.27 it Channel Slope 0.00500 ft/ft Critical Slope a01011 ft/ft Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [08.01.066.00] 71/4I2009 7:60:07 PM 27 Siemons Company Drive Suite 200 W Watertown, C7 06796 USA +1.203-766�6 C E Page V 1 Qf D D NOV 0 t ow DWQ PP.OJ 4 Table 8.05a: Minimum Allowable Design Velocities for Vegetated Channels. Table a 05a �E C E E 'V ED NOV 0 5 2009 DWO PROJ R f Table 8.05d: Maximum Permissible Velocities for Unprotected Soils in Existing Channels. Maximum Permissible Materials Velocities (fps) Fine Sand (noncolloidal) 2.5 Sand Learn (noncolloidal) 2-5 Silt Loam (noncolloidal) 3-0 Ordinary Firm Loam 3.5 Fine Gravel 5.0 Stiff Clay (very colloidal) 5-0 Graded, Loam to Cobbles (noncolloidal) 50 Graded, Silt to Cobbles (colloidal) 5-5 Alluvial Silts (noncolloidal) 3-5 Alluvial Silts (colloidal) 5-0 Coarse Gravel (noncolloidal) 6-0 Cobbles and Shingles 5-5 (�E C E 9 V ED IO�,uu( NOV 0 5 2009 cwo PPOJ # _ 0 (continued) Sample Problem 8.05a Design of a Grass -lined Channel. Tractive Force Procedure Table 8.05e Manning's Roughness Coefficients for Temporary Lining Materials 8.05.10 Channel summary: Trapezoidal shape, 7- = 3, b = 3 ft, d = 1.S ft. grade = 2 Note. In Sample Problem 8.05a the "n-value" is rust chosen based on a permissible velocity and not a design velocity criteria. Therefore, the use of Table 8.05c may not be as accurate as individual retardance, class charts when a design velocity is the determining factor. The design of nprap-lined channels and temporary cnannci mnng> 11 11�1u 11L analysis of tractive force. NOTE: This procedure is for uniform flow in channels and is not to be used for design of deenergizing devices and may not be valid for larger channels. To calculate the required size of an open channel, assume the design flow is unifonn and does not vary with time. Since actual flow conditions change through the length of a channel, subdivide the channel into design reaches as appropriate. PERMISSIBLE SHEAR STRESS The permissible shear stress, Ta, is the force required to initiate movement of the liming material. Permissible shear stress for the liner is not related to the credibility of the underlying soil. However, if the lining is eroded or broken, the bed material will be exposed to the erosive force of the flow. COMPUTING NORMAL DEPTH The first step in selecting an appropriate lining is to compute the design flow depth (the normal depth) and determine the shear stress. Normal deptlis can be calculated by Manning's equation as shown for trapezoidal channels in Figure 8.05d. Values of the Mapping's roughness coefficient for different ranges of depth are provided in Table 8.05e for temporary linings and Table 8.05f for riprap. The coefficient of roughness generally decreases with increasing flow depth. n value for Depth Ranges' 0-0.5 ft 0.5-2.0 ft >2.0 ft Lining Type Woven Paper Net 0.016 0.015 0.015 Jute Net 0.028 0.022 0.019 Fiberglass Roving 0.028 0.021 0.019 Straw with Net 0.065 0.033 0.025 Curled Wood Mat 0.066 0.035 0.028 Synthetic Mat 0.036 0.025 0.021 ' Adapted from: FHWA-HEC 1 �, t'g. s / - April tyaa ® RC 12/E B V E NOV 0 5 2009 D DW4 Pon. I# a Table 8.05f Manning's Roughness Coefficient Lining Category Lining Type n - value n value for Depth Ranges 0-0.5 ft 0.5-2.0 ft 2.0 R (0-15 cm) (15-60 cm) (>60 cm) Rigid Concrete 0.015 0.013 0.013 Grouted Riprap 0.040 0.030 0.028 Stone Masonry 0.042 0.032 0.030 Soil Cement 0.025 0.022 0.020 Asphalt 0.018 0.016 0.016 Unlined Bare Soil 0.023 0.020 0.020 Rock Cut 0.045 0.035 0.025 Gravel Riprap 1-inch (2.5-cm) Dso 0.044 0.033 0.030 2-inch (5-cm) Dso 0.066 0.041 0.034 Rock Riprap 6-inch (15-cm) Dso 0.104 0.069 0.035 12-inch (30-cm) Dso -- 0.078 0.040 Note: Value listed are representativ< values W the respecbve acptn ranges. manning ,wK... .............. ._ r DETERMINING SHEAR STRESS Shear stress, T, at normal depth is computed for the lining by the following equation: T = yes Ta = Permissible shear stress where: T = shear stress in lb/ft' y = unit weight of water, 62.4 lb/ft' d = flow depth in ft s = channel gradient in ft/ft If the permissible shear stress, Ta, given in Table 8.05g is greater than the computed shear stress, the riprap or temporary lining is considered acceptable. If a lining is unacceptable, select a lining with a higher permissible shear stress and repeat the calculations for normal depth and shear stress. In some cases it may be necessary to alter channel dimensions to reduce the shear stress. Computing tractive force around a channel bend requires special considerations because the change in flow direction imposes higher shear stress on the channel bottom and banks. The maximum shear stress in a bend, Te, is given by the following equation: Tp = K,T where: To = bend shear stress in lb/ft' ke = bend factor T = computed stress for straight channel in Ib/W The value of ke is related to the radius of curvature of the channel at its center line, Re, and the bottom width of the channel, B, Figure 8.05e. The length of channel requiring protection downstream from a bend, LP, is a function of the roughness of the lining material and the hydraulic radius as shown in Figure 8.05f. 8.05.12 E 6.Re . t�xro�� V . E �I=1(UI NOV 0 5 2009 DWQ PROD # - ScHoo � Ovr-F'I4tL, User Input Data Calculated Value Reference Data Designed By: 'TM Date: 11/3/2009 Checked By: 'Date: Company: Project Name: Project No.: Site Location (City/Town) Camp Lejeune Culvert Id. School Outfall Total Drainage Area (acres) 20.3 j Step 1. Determine the tail -water depth from chwutel characteristics below the pipe outlet :for the clesign capacity of the pipe- If the tcuhvater depth is less than half the nnrtlet Pipe diattnetrr, it is r.lassifled minimum milwnter conciitinn If it is greater than half the pipe di uneter, it is classified tnvcitntun condition. Pipes that outlet onto wide Hat areas with no defined channel are assumed to have a minimum tailwater condition unless reliable flood stage elevations show otherccise. Outlet pipe diameter, Do (in.) Tailwater depth (in.) Minimum/Maximum tailwater? Discharge (cfs) Velocity (ft./s) 24 I 6 i Min TW (Fig. 8.06a) 2� 3.5' Step 2. Based on the tailwater conditions determined in step 1, enter Figure 8.06a or Hginre 8.0b, and determine dso riprap size and minitnum apron length (L�). The d5o size is the median stone size. in a well -graded ripmp apron. Step 3. Determine apron width at the pipe outlet, the apron shape, and the. apron width at the outlet end from the same figure used un Step ?_ CBD F NOV 0 5 2009 Dwa prnIY__ k - .. ` Minimum TW Maximum TW Figure 8.06a Figure 8.06b Riprap d50, (ft.) 0.5 Minimum apron length, La (ft.) 8 Apron width at pipe outlet (ft.) 6 6 Apron shape Trapezoid Apron width at outlet end (ft.) 10 2 Step 4, Veterimne the tnamnturn stone dianneter: dam,=1.5xd60 Minimum TW Maximum TW Max Stone Diameter, dmax (ft.) 0.75 0 Step 5. Deternune the apron thickness: Apron thickness = 1.5 x d,„. Minimum TW Maximum TW Apron Thickness(ft.) 1.125 0 Step 6. Fit the riprap apron to the site by making it level for the inininnitr length, La, fmin figure 8.06a or Figure 8.06b. .Extend the apron farther doi-itstreana and along channel banks until stability is assured. Keep the apron as straight as }possible: and align it with the flo%v of the receiving stream. Make any necessary aligtunent bends near the pipe outlet so that the entrance into the receiving st.reann is straight. Some lncatinm may rerinirelining of the entire channel cross section to assure stability. It ii ay be necessary to increase the size of riprap where protection of the chancel side slopes is necessary (Appendix 5.05). Wliere overfills emst at pipe outlets or flov.-s are excessive, a plunge pool :should be considered, .see page S.U6.8- - i'. �E C E E V ED I��JnSuu NOV 0 5 2069 DWQ PgOJ # Figure 8.06a: Design of outlet protection from a round pipe flowing full, minimum tailwater condition (Tw<0.5 diameter) Gutl01 11 . Do + La 90i:!- t1 lip 'If t,i ; pipe fill;, .ill, llil ``. diameter (Ob)(!' ^I!Iji ,Ijl Id '-�N 80 E i va ter < —'U!Ill I , l [ I Iij ! , I Ik i II I f 11 {III }I ♦ II I;j�I � I I ��( I..1 }'1_��J 4 ! ,,, , 6 i ,1 4 3 2c 3 } (, .I m 1.'I 1'. Ii!1.}, llil l� lti !. !j ' Ix , '} 7 '� I lI i' L �• I' 0w I l 1 '' ill , !� III if I' it . t G ' { b N 2 Y klli�, l!I,i lli l' am!�I'',. . ,I1, . ' ua3�J2„0lI i)kI 11lt1i {419,.:.'Iz , I �,'!�.. �, ,,' I'(J IIl.rl�aI !�I!II! !�1�I,( i as� yI�,+lIl CIIIIIIIIu�IIII 1II�l[II, !kIi o'"u lI!III',lI I1� .1 !! j3I,II�►v! eIIrIlI 1� 5- ' IIIJ `l�1nI I1[ {, .I . lI , !!I ! f1l '.lf•i I, � ! �, 1 ,i4t-.C•I. �, [j1AG:i. IIl � '!f1Iu!I rI!I ', l,'PAP; 5 10 20 50 :00 200 500 ico0 ®ro L 'Las Discharge ;0lsec) Curves may not be extra:,ola,eCl. Figure d.00a Dosipn of oulct projection pfoticuon from a round pipe fbwii0 till• minmun taihvatercordition (T„. a 0.5 diamuter), F-)2 10o+ = �9 FT: lice. I✓93 use Dso ` Co '°J T►cscNEss 'L N )-J n NOV 0 5 2009 CLAss A -J ?i1t �A1? DWQ Lincoln Park School Development at Camp Lejeune Name Group Simulation Max Time Stage his Max Stage ft Warning Stage ft Max Delta Stage ft Max Surf Area ft2 Max Time Inflow hrs Max Inflow cfs Max Time Outflow hrs Max Outflow cfs BMP#6 BASE FIFTY 13.17 18.712 20.000 0.0050 82132 12.33 106.457 13.17 18.305 Post -Bound N BASE FIFTY 10.01 14.500 14.500 0.0038 0 13.17 18.305 0.00 0.000 Pre -Bound North BASE FIFTY 10.01 15.500 15.500 0.0100 0 12.75 91.416 0.00 0.000 BMPk6 BASE HUNDRED 13.13 19.335 20.000 0.0050 85093 12.33 126.729 13.13 22.748 Post -Bound N BASE HUNDRED 10.01 14.500 14.500 0.0038 0 13.13 22.748 0.00 0.000 Pre -Bound North BASE HUNDRED 10.01 15.500 15.500 0.0100 0 12.75 119.131 0.00 0.000 BMPk6 BASE NC 24.39 14.398 20.000 0.0048 62443 12.42 3.533 40.51 0.079 Post -Bound N BASE NC 10.02 14.500 14.500 0.0038 0 40.51 0.079 0.00 0.000 Pre -Bound North BASE NC 10.02 15.500 15.500 0.0100 0 0.00 0.000 0.00 0.000 BMPk6 BASE ONE 24.37 15.907 20.000 0.0050 69767 12.33 26.228 90.50 0.209 Post -Bound N BASE ONE 10.02 14.500 14.500 0.0038 0 40.50 0.209 0.00 0.000 Pre -Bound North BASE ONE 10.02 15.500 15.500 0.0100 0 13.00 5.391 0.00 0onn BMP#6 BASE TEN 18.38 18.148 20.000 0.0050 79487 12.33 66.916 18.38 2.02 Post -Bound N BASE TEN 10.02 14.500 14.500 0.0038 0 18.38 2.021 0.00 0. 0 Pre -Bound North BASE TEN 10.02 15.500 15.500 0.0100 0 12.75 42.282 0.00 0.000 Q,d - Z , o crs Qso , 19.3 crs p E C E' V ED NOV 0 5 2009 DWQ PROJ # I Interconnected Channel and Pond Routine Model (ICPR) 02002 Streamline Technologies, Inc. Page 1 of 1 STORMWATER NARRATIVE LINCOLN PARK SCHOOL DEVI LONMENT At CAMP LE.II UNE ONSLOW COUNTY, NORTH CAROLINA PREPARED FOR: North Caroline Department of Environment and Natural ReSOUreeS PREPARED BY: KIMLEY-HORN AND ASSOCIATES, INC. 501 INDEPENDENCE 130ULEVARD SUITE 300 CI-IESAPEAKI?, NC 23320 s NOVEMBF-R 2009 K1-1A #1 16319000 �E C E I V E NOV 0 5 2009 D PROD # DWQ OVERVIEW Backurounc This report contains the approach for a stormwater impact analysis conducted for the proposed Lincoln Park School Development. The project site is located at Marine Coles Base (MCB) Camp LQcune in Onslow County, North Carolina. The project site is on approximately 27 acres bounded by Brewster Boulevard to the North, cast of Paradise Point Golf Course, and west of Stonc Strect as shown in the Vicinity Map. The proposed project includes the development of an elementary school as shown in the attached plans. A Lincoln Park Residential development is being proposed adjacent to the school development. 'file Lincoln Park Residential Development includes the development of 340 Runily housing units for enlisted military personnel and one community center. A separate permit application will be submitted for the residential development. The proposed school and residential development make up a portion of six proposed phases of development at Camp Lejeune. An Environmental Assessment (EA) of the master development was completed by the United States khrine Corps in accordance with the National Environmental Policy Act (NI -PA). Pursuant to this report, A Finding Of No Significant Impact (FONSI) was issued in August 2005. E.XimulII Conditions The proposed project she is currently an undeveloped, wooded area. A review of the topographic survey shows grades on the site ranging firm elevation 14 to elevation 31 A geoteehnical investigation was completed in September 2009. The results of the gcolcchuical investigation have been submitted with this package. III. Wetlands and Waters ofthe United States A welland delineation of the proposed project srca was confirmed by the United States Army Corps of Engineers on March 2009. The Notification of .lurisdictional Determination is attached. Less than 0.1 of an acre or wetlands will be impacted (file to underground utilities and grading associated with the proposed development. Thcrc arc no Waters of the Unites States on the proposed project site. IV. Proposed Development The proposed project includes the development of one Department or Defense Education Activity (DoDEA) School. The Lincoln Park School Development includes the construction of one elementary school, an associated parking Of, recreation fields, and playgrounds. One wet detention basin will serve the school development site to treat stormwator runoff. The proposed project is on 2T2 acres, or which 25A acres will be disturbed. The pos-dcvolopntont impervious area or the proposed development was calculated to be approximately 30AWK or SA3 acres. V. Stormwatcr Analvsis Ouslow County is a coastal coumy lowal within the White Oak River Basin. Thus. mornlwatcr management measures have been designed in accordance with the Coastal Stormwater Rules Session Law 2005-21 I. The proposed project area drains to the Morgan Bay. Index Number. 19-I8. According to North Carolina Department of F nvironmcnl and Natural Resources (NCDI NR) Division of Water Quality the proposed project drains to SC waters. The hAld upon area is greater than 2411; therefore, the Proposed project is considered lIgh-Domity. Per the stormwater quality requirements, the lust in or rain must he stored, controlled, and treated for 851; to MAN of the Total Suspended Solids (hSS). Ir wet ponds are used as a Best Management Practice (BMP) the temporary pool must d mwdown between 48 and 120 hours. Per the stornnwater quantity requirements, the storage volume mum be discharged at a rate equal lu or Tess than the pre -development discharge rate Ior the 1-year 24-11our storm. Additionally, discharge directed to flow through %wetlandS must do so at a non -erosive velocity. The calculations and supplemental forms submitted with this narrative demonstrate that the proposed project iucets all requiretacnts ol' the Coastal Storm walcr Rules Session Law 20080 11. VL Design Procedure The limits of the stuciv area were established by determining the areas contributing, runorr to the site using available topographic information. The topographic information revealed two main stormwater egress points, each of which has a significant drainage area composed or lauds that arc hoth a pall orand separate rrom the proposed project site. According to Table 3-4 in the North Carolina Department or I.arvironment and Natural Re50m-CGS (NCDI:?NR) Stornnwater BMP Manual, the Hear surface soils in OnSIMV County arc classified as I lychologic Group 13. Structural measures will be required Ior conveying and controlling increases ill stormwaterrunolT Meetly related to the increase in impervious area due to the Lincoln Park School Development. Runoff from rainfall events will be controlled by a series or drainage inlets and will be conveyed using underground piping networks. Each of these networks will empty directly into an nnahe wet pond. The wet pond will treat runoff from the entire build upon area. The wet pond will outNH into an unmm�ed ditch on the west side or the subject property. The unnamed ditch (lows to an existing culvert under a dill road and outialls into Morgan Bay, an arm or the New River. The existing and proposed drainage systems have been evaluated fix peak Ilbw rates using ICPR sofhvarc. ICPR utilizes SCS curve number methods or generating hydrographs. Rational Method (Q=CIA). Manning's Equation, and SmnuCAD sortwerc have been used in the design of the proposed stormwater system. `t .5 ' D �Ss/ STD •: �r �y P40pg / f 4 301 EVA - / ( a �S'7f. Paradr5e ie\ VAR I 11 cs. TERM' _ -f" Golf Course '. _ I• �)0 A K H I T E --�-- \. 1 v L 2 a, "= •(� 011 _ —..i p�� e1 pi V 9� f y E , C \ "� • (IAA+ � �--yi � - T / n t o is � rt. i d'.. �-1.J y6�i+ 1• . Q � O �� _ y , 7110 RrjG A IV r Fob i 1�;;� ;LEGEND {\ SUBJECT PROPERTY LIMITS ' Ro1ns LINCOLN PARK SCHOOL DEVELOPMENT CAMP LEJEUNE N FIGURE 1 .- -- ONSLOW COUNTY, INC R. SITE VICINITY Kimley-Horn DATA SOd URCE: U.S.G.S., SNEADS FERRY, NC QUAD R PbGRAPHIC MAP and Associates 1 INCH EQUALS Inc. 7.5 MINUTE TOPO SERIES 1,500 FEET U N V FI Iq DWQ PROJ # Precipitation Frequency Data Server Page I of 3 POINT PRECIPITATION \ FREQUENCY ESTIMATES ; `� � W FROM NOAA ATLAS 14 IMF SNEADS FERRY, NOR I'll CAROLIINA (31-8037) 34.55 N 77.4 W 49 fret green'I'mcipitztiomF¢quency Atlas of the United Slates' NOAA Atlas 14. Volume 2. Venion 3 0 id Ilonnin. O. Martin, II. Lin, I' lsarrybok, M.Yekta, and e. Nile, NOAA. National Weather Service, Silver Spring, Maryland, 2004 1ixtrancd'. MidScp 292009 I Conftlence Limits Seasonality Location MaOther Moe Info. GIS data aps Ds Return to State Map Map Precipitation Frequency Estimates (inches) ARI' eon (} ) S - min 10 min IS - min 30 min a 60 - min 120 min 3 hr 6 hr 12 hr 24 hr 48 hr 4 day 7 day 10 du I 20 du day JO day 45 du 60 day_ =0.49 U.79 0.99 1.35 1.6n1 2.06 2.23 2.72 .21 7.6H 4.28 .75 5.4H 6.06 7.98 9.7`J 12.37 14.95 =I 0.59 094 L I8 1.67 2.04 .52 .72 3.J 1 .91 .48 5.17 5.75 6.6U 7.27 9.49 I LG4 14.60 I Z63 0.69 1.10 1.39 197 2.53 3U474550 7 Z780901 L 400 14 7 .80 10 Q77 1.22 Efl 2.24 2.92 .77 .12 S.U4 6.01 6.91 7.91 8.6U 9.7U 10.44 13.23 I5.88 19.- 3.34 25 U.H7 1.7H 1.75 2.59 3.45 .57 S.US 6.20 7.44 H.56 9.82 10.49 11.72 12.5U 15.62 18.48 23.01 6.80 50 U.94 1.50 1.9U 2.86 3.87 5.22 5.85 7.19 8.69 .98 11.49 1209 I3.41 14.21 IZ58 2U.57 25.66 9.52 1 00 LU2 L62 2.K 3.p 4.31 593 6.71 8.29 1 1007 EE 13.34 1J.83 15.22 66.04 19.64 22.0 284 2.28 200 LU9 1.73 2.19 3.41 4.78 6.69 7.66 n).49 IL61 13.32 15.41 15.72 17.17 IS.UII 21.82 24.98 31.26 5.07 500 1.19 L89 2.37 3.78 5.42 .77 n).US 11.28 13.91 15.94 18.55 IH.80 19.99 20.80 4.88 27.88 35.22 8.84 IODU 1.27 2.UU 2.52 .U7 5.95 8.66 10.23 12.7n) I5.'JI IH.19 2L26 21.44 2212 23.11 27.34 3 222 78.J8 1.74 . These ptecimalan finma, asNmbs are Santa on a @tli�mlg W,, ARlis Ire Average R... Interval. Menem rebr b NOM Albs 14 Daernart for = to'nlemehon. NOTE'. FprtaaRng bras ashmates near zero to Witter ® zero. * Upper bound of the 90% confidence interval Precipitation Frequency Estimates (inches) AHI" 5❑ Ii IS 3U 60 12U 3❑� 12 24 48 4❑ 7❑ IU 20 7U 45 6U (years) min min min min tam tam hr hr hr hr hr clay dvy day day day day day ���11.53 11.85 IA7 1.46 LH2 2.21 2.39 2J'4 3.52 .05 4.75 5.27 6.U3 6.67 8.67 IU.56 17.45 16.09 I ° IU.63 1.01 1.27 1.75 2.20 .7U 292 7.59 .28 .93 5.76 6.38 7.25 8.01 IU.32 12.54 1591 19.01 �0.74 LI% 1.4n) 2.12 2.72 3.43 3.72 4.5`) 5.49 6.75 7.78 8.10 9.11 9.90 12.54 IS.U6 ILU2 2.41 10 U.82 1.32 1.67 2.41 3.14 .U4 .41 5.45 6.56 7.55 8.78 9.52 1063 11.46 14.34 17.09 21.56 5.11 ZS 093 1.48 L88 .78 7.70 .88 5.39 6.6tl 8.0I .75 10.88 IL57 12.7 81 F1 3 6 81 16.89 LEE 25.15 8.82 5D LUI L61 2.04 7.07 4.16 5.59 G.24 7.75 .43 IU.89 12.74 13.3i 14.64 15.56 19.00 22.IG 2H.U4 31.7G l0 1.09 1.74 2.2U 3.37 4.64 6.35 7.16 891 10.91 12.59 14.79 15.24 16.63 IZ56 21.28 24.47 31.07 4.72 20U 1. 88 7 E7 2.36 3.67 5.1$ 7.16 8.18 10.22 12.57 14 51 = 17 36 18.7% F9.E 23.68 26.89 FEfl 37.84 SOU 1.29 2.04 2.57 .09 5.86 8.34 ).69 12.15 15.0r/ 17.41 2Q69 20.87 22A4 22.99 27.19 7U.30 7H.67 2.14 IODU 1.38 .17 2.73 .42 6.45 .33 10.99 U.81 17.2n) 19.'J% 2J.H3 3.99 4.78 25.66 30.UU J2.99 42.34 5.53 w ayrnl orwlwolrllewnwmwnlaam.loan onn luenvlevenswavawnwnom a'nmlasi R..ena n aYrvtn nequency are era erlren. "iMsa Drarrygalim treWmry eslmelm ere �sa0 m a IT3rl�ilqu2lon seen ARI Is ire Arerege Ramma Interval Fallen, rebr In NOM Apes 14 Dalrmml to more nlprmt4en. NOTE: Retailing Ixevmle estimate rear zem to appear as zero * Lower bound of the 90% confidence interval Precipitation Frequency Estimates (inches) 0❑ 12 2448I� U7AHI•" mn IU IS 7U 6U 12Jr6r hr d7❑U2U 45 60 ay }crs)❑tam tam tam min mn hhhr hr day 11 day JILdIaLyll day I day I�U.46 17.74 0.92 L26 1.57 1.93 2.09 2.53 295 3.3H 3.88 4.J0 SAIL ET EL 9.13 11.41 1398 2�0.55 0.87 1.10 1.52 1.90 2.35 .55 3.07 .58 .11 .69 5.21 6.03 6.65 8.77 IU.86 13.49 16.49 5�0.64 LU2 L2'J 1.83 2.35 2.98 J.24 3.92 .60 5.31 6. 00 6.60 ff 8.22 10.62 13.03 16A8 19.41 IU 0.71 1.14 1.44 2.08 .71 3.49 7.H2 4b5 5.47 6.3U 7.11 7.74 H.NI .4H 12.15 14.75 18A9 21.74 25 0.80 1.27 1.61 2.38 7.IH 4.21 .66 5.67 6.72 .74 8.76 9.39 10.6U 11.3U 14.25 IZ12 2L08 4.84 SU U.86 1.3H 1.74 2.62 3.56 4.79 5.34 6.53 7.SU H.95 81 10.76 12.04 12.78 15.96 18.93 23.41 27. 99 IOU 0.93 1.4H 1.87 .86 3.94 5.40 6.09 7.45 8.97 10.28 I171 12.20 13.56 FTE Efl 20.80 Efl 29.68 200 U.99 1.58 199 3.10 .34 6.04 6.89 %.45 10.22 11.70 13.33 17.73 I5.15 15.90 19.51 22.63 2H.11 32A7 SUU 1.07 1.70 .13 3.40 .88 695 tl.04 9.89 12.U8 13.75 15.72 IG.17 17.4U Efl 2L- 25.11 3 n 35.18 IOOU 1. 13 1.79 .24 7.63 5.30 7.69 8.99 II.10 13.62 15.46 17.72 18.20 19.19 19.92 3.84 27.U0 33.71 37.54 I in waver onulu at tire Wm4n ice in®rval at vVA caneeence even a an vWNt Nnlm aR osIll. nllnmetW goci values nor a given Irquencr are Pass train. �Q E 0 !9 u NOV 0 5 2009 DWQ PROd 8 http://hdse. nws. noaa.gov/cgi-bin/hdsc/bui Idout. perl?type=pf&units=us&series=pd&statena... 9/28/2009 Precipitation Frequency Data Server Page 2 of 3 "Them preciaAMion frequency estimates are Wi on a Radial dumtbn mau sans. ANI Is the Aerage Recurrence Inbr2l. Peam miler to ROM Atam 14 Document for more hlomlaton NOTE. Formatting pevmN estimates rear mm to appear es zero. I Text version of tables Partial duration based Point Precipitation Frequency Estimates - Version: 3 34.55 N 77.4 g 49 ft 42 40 38 36 34 32 30 v 28 26 0 24 { 22 20 18 16 n 14 i 12 u 10 8 6 4 2 0 1 2 5 10 25 50 100 200 500 1000 Average Recurrence Interval (years) Mon Si, 28 14:15:34 2009 Duration -min leu-m � 9 -hr . 30-day I 10-itin 3-1hr -F- 4-day + 45-day 15-m11, 6-hr — 7-day -a- 60-day - 30-min b- 12-hr , 10-day � 60-min -n- 24-Er . 20-day -o- 4B 38 36 34 c 32 30 2e p 26 o' 24 22 20 18 6 4 2 0 L e 6 0 Partial duration based Point Precipitation Frequency Estimates - Version: 3 34.55 N 77.4 N 49 It C=�CC�'.CB�CC�CCC�� . -.■==w.■=■� 1 C� [ C {Is L L L l L L L L L T T T T Y? J Y Y T L L L L L L L N N N N N T N n m P m m a �0ura[10 m N m'i m o in n ry m a m Mon Bap 28 14-15,34 2009 Average Recurrence Interval (.ears) 1 -m Ju - 2 -+- Iee — 5 — 200 10 a 500 25 1 1000 -a- Maps - DECEIVED NOV 0 5 2009 DWQ PROJ # http://hdsc.nws. noaa.gov/cgi-bin/hdscibuildout. perl?type=p f&units=us&series=pd&statena... 9/28/2009 Precipitation Frequency Data Server Page 3 of 3 reader maps sere prpdamd avnp a 6md map audiat tram Me p S Comm Bureau it". aM cideaumic aesaume Tim, Mee Saner. Is---ul fwmereurfrrmnrr— LEGEND — State — Connector — County Stream Indian Resv O Military Area i Lake/Pond/Ocean p National Park — Street ® Other Park Expressway City Highway 0—C�Unty6 8 at Scale 1:228583 1 *average- -true scale depenr{s on m21' a esolut on Other Maps/Photographs - View USG dlgttatort hophoto quad notate (DOQ) covering this location from TermScrvcr, USGS Acrial Phutogruph may also be available I rom this site. A DOQ is a computer -generated image of tin aerial photograph in which image displacement caused by terrain relief and camera tilts has been removed. It combines the image characteristics of it photograph with the geometric yualaws of a map. Visit the USGS for more information. Watershed/Stream Flow Information - tind,Lhe WitSodued for this location using the U.S. Environmental Protection Agency's site. Climate Data Sources - Precipitation frequency results are baser/ un data from a variety ofsuurces, but largely NCDC'. 7'he Jul/owing links provide general infurmation abmU ubserving sites in the area, regardlessofif Their data ons used in this study. Fur detailed information about the stations used it, this study, please refer to NOAA Atlas 14 Docunrest - Using the National Climatic Data Center's (NCDC) station search engine, locate other climate stations within- +/-30 minutes ...OR... F /-I degree tarfl is location (34.55/-77 4). Digital ASCII data can be obtained directly from NCDC It) dmmemnrumgmal pen lgn Studies Center sacra onn/Nanona l Weather Serace 1325 k}rl-Weo nlg6rvay SI b'er Spring, M112010 (a)1)71,1.1669 (jucrtimWl'. 11�$i.$LVueun ry mgnlalmsr �E C E 8 V ED NOV 0 5 2009 DWQ PROJ # http://hdsc. nws. noaa. gov/cgi-binlhdsc/bui ldout.perl?type=pf&units=us&series=pd&statena... 9/28/2009 NC: Ufi fd li to,'in r_a �Pt IS 4. 11' Alams, , I�restrait lx0-28-o7 �.? Peal: HOW CallllliflltHIS S,nnc of dwstal9's so, I , n,atUi pnIIu; r"qulrC p o, IItIn � ,IIICn I I'looII ''I I IalnotI: lot ---unple, that thu do" rails III the one %,e,ir, 2�1-h,�ul 1;t r III lloa � n I exceed the pre-du%clopinenl IIm� rat: (%tteinse and T.Itd"IInII," Hs A' J, "U] rJn,51. In aa( iitiun, it is also important to cun,Inlle hear Dales Iroln Zhu ,ya[,--rshcd %v hen I'luSynint{. 13O11T SW as grassed swaWn IiIfLi stIII)!;, and lushored riparian buIt,-II . The primary method Thal is usecl to determine peak runoff rate for North Carolina's storntwater programs is the Rational tvlethod. The Ralional equation is given as: Q=C' I'A Where: Q = Gstimatcc] design (Iisch;ugc (cfs) C = Composite runofI coefficient (tit itless) for the ry ateIs led I = Rainfall intensity (ill/Ill) for the designated design storm in the geographic region of interest A = Watershed area (ac) The composite runoff coefficient Muds the surface characteristics of the contributing watershed. The range of runoff awfficknt values varies from 0— 1.0, "wh higher values corresponding to greater runoff rate potential. The runoff coefficient is determined by estimating the area of different land uses within each drainage area. "I -able 3-2 presents vaht:s of runoff coefficients for various pumious and impervious surfaces. The Division bclieves that the Rational Melho:l is most applicable to drainage areas approximately 20 acres or loss. I'abla 3-2 Rational runoff coefficients (ASCG, 1975; Viessman, et zd, 1996; and idalcom, 1999) Descripikon of Surface Rational Runoff Coefficients, C Unimproved Areas 035 Asphalt 005 c nct'ele 0,q5 Erick 0_85 Roofs, incline( 100 Rr, 4s, flat 0.90 Lawns, sandy soil, flat Q2%) 0-10 Lawns, sandy soil, average (2-7'16) 115 Lawns, sandy soil, steep Q7%) 120 Lawns, heavy soil, flat (<2%) 415 Lawns, heavy soil, average (2-5 ,.) 0.20 Lawns, heavy soil, steep (>7%) 0.30 Wooded areas 415 Ile appropriate value for 1, precipitation intensity in inches per hour, can be obtained from the NOAA web site at: QQ/hdonnA.nout.gov hdsc pfds 1, This web site Jtormwater Management and Calculations 12 CE@VED NOV 0 5 2009 I DWQ PROJ # GET a i• October 28, 2009 Garc.'fuJrni firndwrn..... •IC<Ib,i TO: Kimley-Horn and Associates, Inc. Suite 300 501 Independence Parkway Chesapeake, Virginia 23320 Attn: Mr. Thomas J. Sauro, P.E. RE: Final Report of Subsurface Investigation and Geotechnical Engineering Services Camp Lejeune New Elementary School Camp Lejeune, North Carolina GET Project No: EC09-228G Amendment No. 1 Dear Mr. Sauro: The following is an amendment to our original "Final Report of Subsurface Investigation and Geotechnical Engineering Services" (EC09-228G; dated September 11, 2009 and revised on the date of September 15, 2009) as it applies specifically to storm water management pond for the above referenced project. Following the completion of our subsurface exploration procedures and Geotechnical Engineering analysis, it was requested to re-evaluate the estimated seasonal high groundwater level indicated in our report specifically for the boring identified as BMP-1. The soils recovered from the location of boring BMP-1 as well as the remaining borings completed at this project site were previously classified in general accordance with ASTM D 2487 test method. Also, the recovered soils were classified using the Munsell°Soil Color Charts to aid in indicating the estimated Seasonal High Water Table (SHWT). Based on the soil texture classifications located throughout the site, the soils appeared to be relatively homogenous consisting of SAND (SC, SC-SM, SM, SP-SM, SP). The visual description of the soils encountered at the location of boring BMP-1 and noted in the associated boring log indicated that the soils extending from approximately 4 to 6, feet below existing grades (14.5 to 16.5 feet MSL) consisted of a "Mottled Gray -Reddish Tan, moist, Silty fine SAND (SM) with trace clay, loose". The color description of the encountered soils indicated above, particularly the presence of mottling, can be used as an indicator for the potential presence of the estimated seasonal high groundwater level. However, our previously completed analysis indicated that the estimated seasonal high groundwater level at the location of boring BMP-1 was anticipated to occur at a depth of about 10 feet below existing grades (10.5 feet MSL), which an average of about 5 feet lower in elevation than that of the color indicator mentioned above. 50d Gass Hlizabeih Street • Gliribcih Cil%, NC 27909 • Phunc (252)335--9765 • Pas info uigcisolu iinnsinc.com 125213. iii C E h V IED NOV 0 5 2009 DWQ oon]. Final Report of Subsurface Investigation and Geotechnical Engineering Services October28, 2009 Camp Lejeune New Elementary School Camp Lejeune, North Carolina GET Project No: EC09-228G Amendment No. 1 The "Soil Survey of Onslow County, North Carolina" provided by the U.S. Department of Agriculture indicates that soils located within the project site consist predominantly of the Onslow loamy fine sand and Baymeade fine sand. More specifically, it was determined that the proposed storm water retention pond south of the proposed elementary school building is located within the area identified in the "Soil Survey of Onslow County, North Carolina" to contain the Onslow loamy fine sand soils. This association indicates moderately well drained soils with moderately high to high water transmittal capabilities. The soils recovered at the project site appear to be consistent with the information provided on the "Soil Survey of Onslow County, North Carolina". As previously noted, the soil sample colors were identified using the Munsell°Soil Color Charts to aid in identifying the estimated SHWT. It is noted that soil morphology is not a reliable indicator of the SHWT in drained soils, as indicated in the "Soil Morphology as an Indicator of Seasonal High Water Tables" (prepared by Peter C. Fletcher, U.S. Department of Agriculture Soil Conservation Service). Accordingly, the SHWT depths at the location of borings BMP-1 and BMP-2 were estimated based on a combination of the Munsell° color classifications and our experience with similar soil and site conditions. The current groundwater levels encountered at the project site and the estimated SHWT depths are anticipated to be contributed to a combination of the varying existing site grade elevations as well as the existing drainage features. Accordingly, in order to substantiate the visual classifications noted in the previously referenced report and associated boring log for BMP-1, the samples obtained during our original exploration procedures, which were previously sealed in glass jars, were re- evaluated. The results of our re -analysis of the previously completed visual classification indicate that the'soil description should have been noted to consist of "Gray with faint, Reddish Tan Mottling, moist, Silty fine SAND (SM) with trace clay, loose". This is further illustrated in the revised "Boring Log" sheet for the previously completed boring identified as BMP-1. Furthermore, the color evaluations do not appear to be a direct indicator of the potential for the estimated seasonal high ground water level to occur at these depths. , In order to further evaluate the estimated seasonal high ground water levels previously reported, a representative of G E T Solutions, Inc. revisited the project site and performed an additional 13-foot deep hand auger boring within the vicinity of boring BMP-1. This newly completed hand auger boring (identified as BMP-1 B) was located and identified in the field by G E T Solutions Inc. personnel with the use of a Global Positions System unit as well as the "State Plane" coordinates selected from the project site plan and converted to latitude and longitude coordinates. The approximate boring location is shown on the "Boring Location Plan" attached to this report (Appendix I, Figure 1). This plan was developed based on the site plan provided to G E T Solutions, Inc. by Kimley-Horn and Associates, Inc. j�ECEIVED GET Iu^(u NOV 0 5 2009 DWQ PROJ # Final Report of Subsurface Investigation and Geotechnical Engineering Services October28, 2009 Camp Lejeune New Elementary School Camp Lejeune, North Carolina GET Project No: EC09-228G Amendment No. 1 The soils encountered at the newly completed boring location were visual classified in accordance with ASTM D2487 and using the Munsell°Soil Color Charts. Furthermore, the encountered soils were noted to consist of Tan, or Light Tan -Gray, SAND (SC-SM, SM, SP-SM, and SP) with varying amounts of silt and/or clay. The ground water level encountered during our initial drilling procedures was measured to occur at a depth of about 11 feet below the existing site grade elevations, which corresponds to an elevation of about 9 feet MSL. Furthermore, the results of our newly completed exploration procedures and associated visual classifications did not indicate the presence of color mottling. Accordingly, the seasonal high ground water level was estimated to occur at a depth of 7 feet below the existing site grade elevations at the location of boring BMP-1B, which corresponds to an elevation of about 13 feet MSL. Again, this evaluation was based on the results of our visual classification and our experience with similar soil and site conditions. Table I below includes the encountered ground water elevations and the individual estimated seasonal high ground water elevations for each BMP boring as well as the average estimated seasonal high ground water elevation. Table I — Groundwater Summary Estimated Average Approximate 48-hour Seasonal Estimated Surface Initial Groundwater High Seasonal High Boring No. Groundwater Elevation Elevation Groundwater Groundwater (ft MSL) Elevation (ft)" (ft MSL) "" Elevation Elevation ft MSL ** ft MSL " Not Monitoring BMP-1 20.5 Encountered Well Not 10.5 gMP POND #6 Installed Monitoring Average BMP-1B 20.0 9.0 Well Not 13.0 Estimated Installed SHWT Elevation = 11.8 BMP-2 21.5 6.5 9.0 12.0 = Elevations indicated above are estimated based on the topographic information provided by Kimley- Horn and Associates, Inc. The subsurface description is of a generalized nature provided to highlight the major soil strata encountered. The records of the subsurface exploration are included on the attached" Boring Log" sheets and on the "Generalized Soil Profile" sheets, which should be reviewed for specific information as to the individual borings. The stratifications shown on the records of the subsurface exploration represent the conditions only at the actual boring locations. Variations may occur and should be expected between boring locations. The stratifications represent the approximate boundary between subsurface materials and the transition may be gradual. nECEIVED GET IuunSuu .-t 42'l NOV 0 5 2009 DWQ PROJ If Final Report of Subsurface Investigation and Geotechnical Engineering Services October28, 2009 Camp Lejeune New Elementary School Camp Lejeune, North Carolina GET Project No: EC09-228G Amendment No. t We trust that the information contained herein meets your immediate need, and we would ask that you call this office with any questions that you may have. Respectfully Submitted, G E T Solutions, Inc. Gerald W. Stalls Jr., P.E. Senior Project Engineer NC Reg. #34336 Camille A. Kattan, P.E. Principal Engineer NC Reg. # 14103 Attachments: Boring Location Plan Boring Log(s) Generalized Soil Profile Copies: (3) Client q S AL 03433E '„nninm•• SEAL 01,1103 nECEIVED NOV 0 5 2009 DWQ PROJ #3 r- Solatlore,inc.,; .,, BMF-1 BMP #6 -rOB=2o 0 NWSE=14 0 \ u Il E C V EII II NOV 0 5 2009 �J PROJ # DWQ Pro LEGEND GET CAMP IIect Name, LEJEUNE NEW ELEMENTARY SCHOOL CAMP LEJEUNE, NORTH CAROLINA Project No, EC09-228G Drawn By, APL —APPROXIMATE BORING LOCATIONS Date, 10/28/09 Figure No., 1 s BORING LOCATION PLAN NOT NOT TO SCALE GETPROJECT: Camp LeJeune New Elementary School CLIENT: Kimley-Horn & Associates Inc. - BORING LOG BMP-1 PROJECT LOCATION: Camp LeJeune, North Carolina PROJECT NO.: EC09-228G BORING LOCATION: See Attached Boring Location Plan SURFACE ELEVATION: 20.5' MSL DRILLER: G E T Solutions, Inc. LOGGED BY: P. Lankford, EIT DRILLING METHOD: Mud Rotary(Wash) DATE: 9-2-09 DEPTH TO WATER - INITIAL': Q AFTER 24 HOURS: -T CAVING> C. cZ 'm v `� W� _ a m o w F a w o `'' Description $ 2 a o m z N E- > w NiYN a 3 m m o. W m z 0 u " o TEST RESULTS Plastic Limit H Liquid Limit Moisture Content- • IN Value - PJ� 10 20 30 40 50 60 70 20 — — — 15_ —= 0 0 3 7 15 19 18 to 1.8 —t 7 inches of TOPSOIL 060 Tan, moist, Clayey SAND (SC) with sill, very loose Mottled Gray -Reddish Tan from 2 fee mT '✓ /i/: .,.�. _ 1 --- 2 _ 22 24 _ SS SS z 2 2l 2 '....:...: ..:... .. _:...:...:. ........ ........................ .......... .. :. ..... .. ... _.. :...:...:. .. :. .:.. .:.. :.. _..:.. ' ' .. .. t. — — 5 Gray with faint Reddish Tan mottling, moist, Silty fine SAND (SM) with clay, loose 1__— 3 2a SS 3 a 5 6 Light Gray, moist. poorly graded fine to medium SAND (SP) to poorly graded fine to medium SAND (SP-SM) with silt. medium dense Light Tan -Tan from S feetr.`"'r Light Gray from 10 feet Estimated Seasonal High Groundwater Level - 10 Feet P a.,.i:' 'lt:;j. ;::; i` tr 4 22 SS 7 6 10 _ _ — 5 — 24 — SS 10 ,1 — 50 10 ar;u _ 6 _ 24 _ SS 10 — 22 SS 7 6 6 — 15 Baring terminated al 15 ft. E C E I VE 6 — o_ 10 — -05 20 25 10 JO �5 - - Notes: NOV 0 5 2009 SS = Split Spoon Sample ST = Shelby Tube Sample HA = Hand Auger Sample 'Till uIltial cr r.adino fray not lie iodirartyp n(thi BS=Bulk Sample PROJ K PAGE 1 of 1 Standard Penetration Tests were perlorrned In the field in ,general accordance wilt, ASTM D 1586. GETPROJECT: Camp LeJeune New Elementary School CLIENT: Kimley-Horn & Associates Inc. �NNOW BORING LOG BM P-2 PROJECT LOCATION: Camp LeJeune, North Carolina PROJECT NO.: EC09-228G BORING LOCATION: See Attached Boring Location Plan SURFACE ELEVATION: 21.5' MSL DRILLER: G ET Solutions, Inc. LOGGED BY: P. Lankford, EIT DRILLING METHOD: Mud Rotary(Wash) DATE: 9-2-09 DEPTH TO WATER • INITIAL': s- 15' AFTER 24 HOURS: T- 12.5' CAVING> C — o. o o. w o Description n a w a o z a> v �xm m n m 3 tD m a w z o # v o TEST RESULTS Plastic Limit H Liquid Limit Moisture Content- • N-Value- 10 20 30 40 50 60 70 20 0 2— 3 8 22 17 13 14 2.0 11.. —k 8 inches of TOPSOIL 07 Tan, moist, Silty fine SAND (SM), very loose 1 18 SS 1 1 ........ .. ... :...: ..:...:.. : :.. it 'ii:--- 2 12 SS 2 — — 2ediurn — s 4 Light Tan -Tan, moist, poorly graded fine to rnediurn SAND (SP) to poorly graded fine to medium SAND (SP-SM) with silt, loose to rn15 dense Estimated Seasonal High Groundwater Level = 9.5 feet 1b t r ,.,,.... n:�:ol ... r. f. 3 i8 SS z 3 5 4 24 SS 10 12 12 — — 5 24 SS 6 9 10 m 4 .::I :: — 6 — 22 — SS 7 s e Light Tan -Tan, moist to wet. poorly graded fine to medium SAND (SP-SM) with silt to Silty fine SAND (SM), with Clay, medium dense _ Wet from 15 feet :.... ''!i'--- 7 15 Ss c — Boring terminated at 15 ft. —p — — za 25 0 — 15 1p — Notes: SS = Split Spoon Sample ST = Shelby Tube Sample HA = Hand Auger Sample BS = Bulk Sample uodwatef I 1 I1 r I I+ PAGE 1 of 7 Standard Penetration Tests were performed in the field in general accordance with ASTM D 1586, GETPROJECT: Camp LeJeune New Elementary School CLIENT: Kimley-Horn & Associates Inc. BORING LOG BMP-1 B PROJECT LOCATION: Camp LeJeune North Carolina PROJECT NO.: EC09-228G BORING LOCATION: See Attached Boring Location Plan SURFACE ELEVATION: 20.0' MSL DRILLER: G E T Solutions, Inc. LOGGED BY: P. Lankford, EIT DRILLING METHOD: Hand Auger DATE: 10-21-09 DEPTH TO WATER - INITIAL': `v 11' AFTER 24 HOURS: T, CAVING> C- 13, c w> -' N � n m m ffi o _ E o. �, m m o = Description n � a o E z N n > E> in � E N � o t, m a w z o \ TEST RESULTS Plastic Limit f-i Liquid Limit Moisture Content - • N-value- K= 10 20 30 40 50 60 70 20 0 0 6 inches of TOPSOILHA y^ ..... _...... ..._... .._ .. _... _.._.....__._.:...:.. _..:...:...:...:.............. _..:. :.. .: :...:.. Tan. moist. Silly fine SAND with clay to Silly, Clayey SAND (SC-Si) a 5 — — 10 5 an, moist to wet. poorly graded fine to medium SAND (SP) to poor) graded fine to medium SAND (SP-SM) with silt Light Tan -Light Gray from 7 feet Estimated SHWT Depth = 7 feet Estimated SHWT Elevation = 13' MSL Wet from 11 feet ? rulr r rr r ri. i f:c i i rr — —10 - � Boring terminated at 13 ft. i.5_ 6 20 5 10 -15 25 30 10 35 Notes: SS = split Spoon sample ST= Shelby Tube Sample HA = H,md Auge: Sample BS = Bulk Sample PI PAGE 1 of 1 Standard Peuelration Tests were performed in the field in general accordance with ASTM D 1586. Symbol Description Strata symbols Topsoil Clayey Sand Silty Sand Poorly graded Sand with Silt 5r� �: iE1: Silty Clayey Sand Misc. Symbols 4 Water table during drilling Water table at boring completion Depth to caving Notes: 1. Exploratory borings were drilled on 10-21-09 using a 4-inch diameter continuous flight power auger. 2. No free water was encountered at the time of drilling or when re -checked the following day. 3. Boring locations were taped from existing features and elevations extrapolated from the final design schematic plan. 4. These logs are subject to the limitations, conclusions, and recommendations in this report. 5. Results of tests conducted on samples recovered are reported on the logs. r 2s II I1 zz 3 5] ] 10 1212 B N:a=T2 NIA=13.1 68 ]8 66 0 Strata svmbol5 Topsoil %�i Clayey Sand Silty Sand Poorly graded Sand with Silt •t Silty Clayey Sand 20 --- —F15 5 J H-5 Symbol Description Strata symbols Topsoil Clayey Sand Silty Sand j_p.,.,.�,;, Poorly graded Sand .. iwith Silt :�:. r Silty Clayey Sand Misc_Symbols Water table during drilling Water table at boring completion Notes: 1. Exploratory borings were drilled on 10-21-09 using a 4-inch diameter continuous flight power auger. 2. No free water was encountered at the time of drilling or when re -checked the following day. 3. Boring locations were taped from existing features and elevations extrapolated from the final design schematic plan. 4. These logs are subject to the limitations, conclusions, and recommendations in this report. 5. Results of tests conducted on samples recovered are reported on the logs. t ❑_❑ Kimley-Horn M and Associates, Inc. November 4, 2009 Christine Nelson North Carolina Department of Environment and Natural Resources Wilmington Regional Office 127 Cardinal Drive Extension Wilmington, North Carolina 28405 Re: Request for Additional Information Stormwater Project No. SW8 090918 Lincoln Park School Development Onslow County Dear Christine Nelson: 501 Independence Parkway Suite 300 Chesapeake, Virginia 23320 TEL 757,548,7300 I'AX 757.548.7301 Please accept this letter as a response to the comments contained in your letter dated October 20, 2009. This letter will address each comment through additional information, figures and attachments. The responses below are numbered to correspond with the comments contained in the October 20, 2009 letter (see attached). I. a. Please see the attached letter from GET Solutions, Inc titled Final Report of'Subsuriace Investigation and Geotechnical Engineering Services Amendment No. I 1. b. Please see the attached letter from GET Solutions, Inc titled Final Report of Subsurface Investigation and Geoteehnica! Engineering Services Amendment No. I I. c. The adjacent wetlands contain an existing ditch with an invert of 1 I' at the wetland upland interface. This ditch extends for approximately 3,600 linear feet through the wetlands at an invert of between I I and 13 feet and conveys ground water in a southwesterly direction toward the New River. Ground water in and adjacent to the wetland will be controlled by this ditch rather than by the proposed pond with a N WSE of 14', a foot higher than the upstream ditch invert. 2. The calculations and other supporting documents have been modified to reflect the correct SA/DA ratio. 3. The temporary pool volume is 279,990 cf based on the stage -storage calculations. The inconsistency in this number has been corrected. 4. Please see attached Section III. Required Items Checklist with the wet pond supplement. 5. Please see attached the Jurisdictional Determination. 6. Please see attached the title sheet of the Stormwater plans. The street names on the vicinity map have been updated. 7. Please see attached stormwater plans. The gravel shoulders are included in the totE C E I V E D impervious area for the site. W NOV 0 5 2009 DWQ PROJ p ❑�❑ Kimley-Horn and Associates, Inc. 501 Independence Parkway Suite 300 Chesapeake, Virginia 23320 'I'EL 757.548.7300 FAX 757.548.7301 8. Please see attached stormwater plans. All future areas, both sidewalks and buildings have been clearly labeled and identified on the stormwater plan sheets. 9. Please see attached stormwater plans. The wet pond drainage area has been re-evaluated. All proposed impervious areas will be collected and directed to the pond. 10. Please see attached grading plans. Additional spot elevations have been added to the parking lot. 11. Please see attached stormwater plans. Proposed roof drains have been labeled. 12. Please see attached stormwater plans. The elevation of the weir in the berm between the forebay and the main pond has been labeled. 13. Please see attached the planting plans for the project site. 14. Please see attached calculations and stormwater plans. Additional details have been provided for the rip rap apron to be used at the pond outlet. 15. Please see attached FIowMaster calculations and [CPR model to support outflow condition. 16. Please see attached stormwater calculations. The calculations have been signed, scaled, and dated. 17. Please see attached stormwater plans. The plans have been signed, scaled, and dated. 18. Please see attached additional review fee check for $500.00. 19. Please see attached stormwater calculations and plans, both have been reviewed for consistency and accuracy. If you have any questions or require additional information, please contact me at (757)548- 7324 or email me at Rachel.Oberleokimlev-horn.com. We look forward to hearing from you. Sincerely, Kimley-I-torn and Associates, Inc. A "4 Rachel Oberle, EIT Environmental Scientist Enclosures: Stormwater Permit Application, Including Supporting Calculations and Plans Nelson, Christine From: Nelson, Christine Sent: Thursday, October 22, 2009 2:19 PM To: 'Ted.Miller@kimley-horn.com' Cc: Rachel. Oberle@kimley-horn.com; Tom.Sauro@kimley-horn.com; gscola@lpsi.com; david.towler@usmc.mil; Russell, Janet Subject: RE: Lincoln Park School Development Ted, A new due date of Nov 5 is ok with me. Please be advised that I will be on vacation on Fri, 11/6 and have a holiday on Weds, 11/11. Christine Christine Nelson Environmental Engineer NC DWQ - Stonnwater Program Wilmington Regional Office 910-796-7323 E-mad correspondence to and from this address may be subject to the North Carolina Public Records Lou, and may be disclosed to third parties. From: Ted.Miller@kimley-horn.com [mailto:Ted.Miller@kimley-horn.com] Sent: Thursday, October 22, 2009 1:05 PM To: Nelson, Christine Cc: Rachel.Oberle@kimley-horn.com; Tom.Sauro@kimley-horn.com; gscola@lpsi.com; david.towler@usmc.mil Subject: Lincoln Park School Development Christine: We are in receipt of your RFI letter dated October 20, 2009 regarding the Lincoln Park School Development (SW* 090918) in which you request the additional information be submitted to you prior to October 29, 2009. As discussed earlier today, there have been some minor changes to the school design and we will need some additional time to compile the re -submittal package. Consequently, we request the deadline be extended to November 5, 2009. Thank you for your understanding. Ted Miller, P.E. Kimley-Horn and Associates, Inc. 501 Independence Parkway, Suite 300 Chesapeake, Virginia 23320 Direct: 757-548-7333 Office: 757-548-7300 Fax: 757-548-7301 Cell: 757-270-5187 Email: ted milleridkimley-horn.com 4 �e 9 NC®ENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coleen H. Sullins Dee Freeman Governor Director Secretary October 20, 2009 Commanding Officer c/o Carl Baker, Deputy Public Works Officer US MCB Camp Lejeune Bldg 1005 Michael Road Camp Lejeune, NC 28542 Subject: Request for Additional Information Stormwater Project No. SW8 090918 Lincoln Park School Development Onslow County Dear Mr. Baker: The Wilmington Regional Office received an Express Stormwater Management Permit Application for Lincoln Park School Development on October 9, 2009. A preliminary review of that information has determined that the application is not complete. The following information is needed to continue the stormwater review: 1. a. The geotechnical report provided in the application package identifies the estimated seasonal high groundwater elevation; however the provided boring logs for borings BMP-1 and BMP-2 do not appear to support that the identified elevation is the seasonal high water table (SHWT). For instance, mottling is identified in the boring for BMP-1 above the identified seasonal high groundwater level. Mottling in the soil is often an indicator of SHWT. Refer to 15A NCAC 21-1.1002,(15) for the definition of the SHWT. Please have a licensed soil scientist confirm the SHWT elevation in the location of the BMP. b. Please keep in mind that the SHWT influences the design of the permanent pool. The reported SHWT cannot be any higher than 6' above the permanent pool elevation. If the SHWT is found to be higher than 14.5 ft, please redesign the pond such that the elevation of the permanent pool is set no lower than 6" below the SHWT or meet the requirements outlined in Section 10.3.2 of the NC BMP manual. c. Additionally, the permanent pool elevation cannot adversely impact any adjacent wetlands. Please demonstrate that setting the permanent pool at an elevation of 14 ft, approximately 4 ft below the nearby wetlands, will not adversely impact the water level in the wetlands. 2. When determining the average depth of the pond, please round the number resulting from the average depth calculation, Option 1 or Option 2, to the nearest 0.5 ft. Based on a calculated average depth of 3.32 ft, the rounded average depth will be 3.5 ft. Using the 90% TSS chart for the coastal region (Table 10-4 in the NC BMP manual), with a 37.5% impervious cover and a 3.5 ft average depth, the SA/DA ratio will be 3.75%. Please modify the calculations and other supporting documents to reflect the correct SA/DA ratio. Wilmington Regional Office 127 Cardinal Drive Extension, Wilmington, North Carolina 28405 Phone: 910-796-72151 FAX: 910-350-20041 Customer Service: 1-877-623-6748 Internet: www.ncvvaterquality.org An Equal Opportunity 1 Affirmative Action Employer None rthCarolina Naturally Carl Baker October 20, 2009 Stormwater Application No. SW8 090918 3. On the wet detention basin design summary calculation sheet, the temporary pool volume (water quality storage) in the summary section at the bottom is listed as 320,035 cf. However, in the required Storage volume section a few sections above that, the storage volume provided is listed as 279,990 cf. Please clarify why there is a difference between these 2 numbers. The temporary pool volume will be that volume contained between the permanent pool elevation (14 ft) and the temporary pool elevation (18 ft), as reported on the supplement form. Based on the stage - storage calculations, 279,990 cf appears to be the correct volume. 4. Please complete and provide Section III. Required Items Checklist for the wet dentition pond supplement. 5. Section III of the overview/narrative indicates that the Notification of Jurisdictional Determination was included in the application package; however it could not be located. If available, please submit this document. 6. Please verify the vicinity map on the title sheet of the plans, specifically the street names. One of the streets has been identified as Camp Lejeune. 7. Please confirm that the gravel shoulders used to armor the turns in the bus loop and service road have been included in the total impervious area for the site. 8. The plan sheets labeled "Overall Site Layout' and "Overall Grading and Drainage Plan" appear to include both proposed and future sidewalks. To reduce confusion, please clearly label and identify all future areas, both sidewalks and buildings, or remove the future sidewalks from these sheets. 9. Please re-evaluate the pond drainage area. Several areas identified within the drainage area do not appear to be physically capable of draining to the pond. Several of these areas include: half of the soccer fields, the area to the west of the pond, and the service road between the dumpster pad and the bus loop. Please ensure that the drainage area does not include areas that do not now or will not in the future, drain to the pond and that, at a minimum, all proposed impervious areas will be collected and directed to the pond. 10. Please provide more spot elevations or proposed contours for the parking area to demonstrate that the runoff will be collected and directed to the pond. 11. Please label the proposed roof drain lines on the plans or add the symbol to a legend. 12. Please identify the elevation of the weir in the berm between the forebay and the main pond on plan sheet containing the detail and cross-section of the wet detention pond (plan sheet BMP #6). 13. Please specify BMP and swale side slope vegetation and the wetland species to be planted on the 10:1 vegetated shelf of the wet pond. 14. Please provide more details and calculations on the rip rap apron to be used at the pond outlet, including dimensions. 15. Please provide more information and clarification on the velocity of the discharge from pond outlet ditch into wetlands. For instance, the worksheet for the BMP outfall ditch from FlowMaster identifies the velocity as 2.48 ft/s. However, the graph of velocity vs. discharge for the outfall ditch indicates the velocity is 2.5 ft/s for no grass or 2.0 ft/s for manicured grass. Wetlands typically are not comprised of manicured grass. Is this calculation examining the velocity in the swale or at the point of discharge? Please clearly demonstrate that the velocity of the runoff into and through the wetlands is 2 ft/s or less for the 10-year storm event otherwise provide a velocity reduction device, such as a level spreader. Page 2 of 3 1: Carl Baker October 20, 2009 Stormwater Application No. SW8 090918 16. Please sign, seal, and date the calculations. 17. Please provide two sets of signed, sealed, and dated plans. 18. Please submit a $500 fee for the additional review required for this application. 19. Please keep in mind that changing one number may change other numbers and require the calculations, supplements, and other supporting documentation to be updated. Verify all numbers are correct to ensure consistency in the application documents. 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 October 29, 2009. or the application will be returned as incomplete. The return of a project will necessitate resubmittal of all required items, including the application fee. If you need additional time to submit the information,, please email or fax your request for a time extension to the Division at the address and fax number at the bottom.of this letter. Please note that a second significant request for additional information may result in the return of the project. If the project is returned, you will need to reschedule the project through the Express coordinator for the next available review date, and resubmit all of the required items, including the application fee. 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 label all packages and cover letters as "Express" and reference the project name and State assigned project number on all correspondence. If you have any questions concerning this matter please feel free to call me at (910) 796-7323 or email me at christine.nelson@ncmail.net. Sinccerely, inq l �Y� euib; u Christine Nelson Environmental Engineer GDSlcan: S:\WQS\STORMWATER\ADDINFO\2009\090918.oct09 cc: Ted Miller, Kimley - Horn and Associates Christine Nelson Wilmington Regional Office Page 3 of 3 Nelson, Christine From: Nelson, Christine Sent: Tuesday, October 20, 2009 12:37 PM To: 'Ted. Miller@kimley-horn.com'; david.towler@usmc.mil Cc: Russell, Janet Subject: request for additional info: SW No. 090918 Lincoln Park School Attachments: 090918. oct09. pd f Gentlemen, I have attached a pdf version of my request for additional information for Stormwater Project SW8 090918— Lincoln Park School Development. I will also send copies in the mail. Let me know if you have questions. Thanks, Christine Christine Nelson Environmental Engineer NC DWQ - Stormwater Program Wilmington Regional Office 910-796-7323 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. 3 r I -) ` )7r ' i9 -)Ir o`i9, E)l -! HE,A :! Jtxz For DENR Use ONLY Reviewer: _ C„� North Carolina Department of Environment and to _ r6 AANatural Resources Submit: ►t. — L NCDENIt Request for Express Permit Review Time: t 3� Confirm.. FILL-IN all the information below and CHECK the Permit(s) you are requesting for express review. FAX or Email the completed to to Express Coordinator along with a completed DETAILED narrative, site plan (PDF file) and vicinity map (same items expected in the application package Of the Droiect location. Please include this form in the application oackaae. • Asheville Region -Alison Davidson 828.296.4698;alison.davidsork3ncmail.net • Fayetteville or Raleigh Region -David Lee 919-791.4203; david.lee(rDncmail.net • Mooresville & -Patrick Grogan 704-663.3772 or patrick.grogan((Dncmail.net • Washington Region -Lyn Hardison 252-946.9215 or Ivn.hardisonCrDncmaitnet • Wilmington Region -Janet Russell 910.350.2004 orianet.russell(cDncmail.net NOTE: Project application received after 12 noon will be stamped in the following work day. SW SW SW SW SW ) :30 Project Name: LINCOLN PARK SCHOOL DEVELOPMENT County: ONSLOW Applicant: JARL BLISS Company: MID-ATLANTJAILITARY FAMILY COMMUNITIES LLC Address: 200 FAIRBROOK DRIVE SUI 01 City: HERNDON State: VA Zip: 20170-_ V Phone: 703-834-1900, Fax: 703-J32r3746, Email: GSCOLA@LPSI.COM C1pri. Physical Location: LATITUDE: 34° 48" LONGITUDE:-77-22-08- Project Drains into TIDAL waters — Water classification SC (for classification see-htlD://h2o.enr.state.nc.us/bims/reports/repoOsWB.html) Project Located in WHITE OAK River Basin. Is project draining to class ORIN waters? N , within'/2 mile and draining to class SA waters N or within 1 mile and draining to class HOW waters? N n E C E I V E D Engineer/Consultant: TED MILLER Company: KIMLEY HORN AND ASSOCIATES Address: 501 INDEPENDENCE PARKWAT SUITE 300 City: CHESAPEAKE, State: VIRGINIA Zip: 23320-5159 SEP 2 8 2009 Phone: 757-548-7333. Fax: 757-548-7301, Email: TED.MILLER@KIMLEY-HORN.COM SECTION ONE: REQUESTING A SCOPING MEETING ONLY DWQ ® Scoping Meeting ONLY ® DWQ, ❑ DCM, ❑ DLR, ❑ OTHER: REQUEST FOR FILING ONLY. MEETING HAS TAKEN PLa66?J # SECTION TWO: CHECK ONLY THE PROGRAM (S) YOU ARE REQUESTING FOR EXPRESS PERMITTING ® 401 Unit ❑ Stream Origin Determination: _ # of stream calls — Please attach TOPO map marking the areas in questions ❑ Intermittent/Perennial Determination: _# of stream calls— Please attach TOPO map marking the areas in questions ® 401 Water Quality Certification ® Isolated Wetland L_linear ft or <0.1 acres) ❑ Riparian Buffer Authorization ❑ Minor Variance ❑ Major General Variance ® State Stormwater ❑ General ❑ SFR, ❑ SFR < 1 ac. ❑Bkhd & Bt Rmp, ❑ Clear & Grub, ❑ Utility ❑ Other ❑ Low Density ❑ Low Density -Curb & Gutter _ It Curb Outlet Swales ❑ Off -site [SW _ (Provide permit #)] ® High Density -Detention Pond 1 #,Treatment Systems ❑ High Density -Infiltration _ #Treatment Systems ❑ High Density -Bio-Retention _# Treatment Systems El High Density —SW Wetlands _ # Treatment Systems ❑ High Density -Other _ # Treatment Systems /❑ MOD:❑ Major ❑ Minor ❑ Plan Revision ❑ Redev. Exclusion SW (Provide permittt) ❑ Coastal Management ❑ Excavation & Fill ❑ Bridges & Culverts ❑ Structures Information ❑ Upland Development ❑ Manna Development ❑ Urban Waterfront ❑ Land Quality ❑ Erosion and Sedimentation Control Plan with _ acres to be disturbed.(CK # (for DENR use)) SECTION THREE — PLEASE CHECK ALL THAT IS APPLICABLE TO YOUR PROJECT (for both SCODIno and express meelino reauest Wetlands on Site ® Yes ❑ No Buffer Impacts: ® No ❑ YES: _acre(s) Wetlands Delineation has been completed: ® Yes ❑ No Isolated wetland on Property ® Yes ❑ No US ACOE Approval of Delineation completed: ® Yes ❑ No 404 Application in Process wl US ACOE: ® Yes ❑ No Permit Received from US ACOE ® Yes ❑ No +.>»r.......>u..>...»+.»>+»».»».... ..+.». r.r..>....+»»For DENR use only>•':...»..... r++»»»...»».»»..»»+»»+»»»»+:..».+++»+»++»»»»»». Fee Split for multiple Dermits: (Check # 1 Total Fee Amount E SUBMITTAL DATES Fee SUBMITTAL DATES Fee CAMA $ Variance (❑ Mai; ❑ Min) $ SW (❑ HD, ❑ LD, ❑ Gen) $ 401: $ LQS $ Stream Deter,_ $ NCDENR EXPRESS March 2009 PF 30 WOUNDED NAVAL ,E WAFFKM HOERTAL PARADE POINT Nex wvm SEP 2 8 2009 DWO PROJ # -- s K OVERVIEW Background This report contains the approach and preliminary results of a stormwater impact analysis conducted for the proposed Lincoln Park School Development. The project site is located at Marine Corps Base (MCB) Camp Lejeune in Onslow County, North Carolina. The project site is on approximately 31 acres bounded by Brewster Boulevard to the North, east of Paradise Point Golf Course, and west of Stone Street as shown in Appendix A: Vicinity Map. The proposed project includes the development of an elementary school as shown in Appendix B: School Site Plan. A Lincoln Park Residential development is being proposed adjacent to the school development. The Lincoln Park Residential Development includes the development of 340 family housing units for enlisted military personnel and one community center. A separate permit application will be submitted for the residential development. The layout of the both the proposed school and residential development are shown in Appendix C: Phase I Site Plan. The proposed school and residential developments are Phase I of six proposed phases of development at Camp Lejeune. The proposed master development is shown in Appendix D: Master Development. An Environmental Assessment (EA) of the master development was completed by the United States Marine Corps in accordance with the National Environmental Policy Act (NEPA). Pursuant to this report, A Finding Of No Significant Impact (FONSI) was issued in August 2008. IL Existing Conditions The proposed project site is currently an undeveloped, wooded area. A review of the topographic survey shows grades on the site ranging from elevation 14 to elevation 30. A preliminary geotechnical investigation was completed in August 2008. An executive summary of the results is attached in Appendix E: Preliminary Gcotcchnical Investigation. III. Wetlands and Waters of the United States A wetland delineation of the proposed project area was confirmed by the United States Army Corps of Engineers on March 2009. The Notification of Jurisdictional Determination is attached in Appendix F. Less than 0.1 of an acre of wetlands will be impacted due to underground utilities associated with the proposed development. There are no Waters of the Unites States on the proposed project site. IV. Proposed Development The proposed project includes the development of one Department of Defense Education Activity (DoDEA) School. The Lincoln Park School Development includes the construction of one elementary school and associated parking lot, recreation fields, and playgrounds. The layout of the proposed project is shown in Appendix B: School Site Plan. One wet detention basin will serve the school development site to treat stormwater runoff. The proposed project is on approximately 31 acres, of which approximately 29 acres will be disturbed. The post- �ECEIVED SEP 2 8 2009 DWO PROJ B �ECE0vED SEP 2 8 2009' PROJ u _ DW4 development impervious area of the proposed development was calculated to be approximately 35% or I I acres. V. Stormwater Analvsis Onslow County is a coastal county located within the White Oak River Basin. Thus, Stormwater management measures shall be designed in accordance with the Coastal Stormwater Rules Session Law 2008-21 L The proposed project area drains to the Morgan Bay, Index Number: 19-18. According to North Carolina Department of Environment and Natural Resources (NCDENR) Division of Water Quality the proposed project drains to SC waters. The build upon area is greater than 24%; therefore, the proposed project is considered 1-ligh-Density. Per the Stormwater quality requirements, the first 1.5" of min must be stored, controlled, and treated for 85% to 90% of the Total Suspended Solids (TSS). if wet ponds are used as a Best Management Practice (BMP) the temporary pool must drawdown between 48 and 120 hours. Per the stormwater quantity requirements, the storage volume must be discharged at a rate equal to or less than the pre -development discharge rate for the 1-year 24-hour storm. Additionally, discharge directed to flow through wetlands must do so at a non -erosive velocity. VI. Design Procedure The limits of the study area were established by determining the areas contributing runoff to the site using available topographic information. The topographic information further revealed two main stormwater egress points, each of which has a significant drainage area composed of lands that are both a part of and separate from the proposed project site. According to Table 34 in the North Carolina Department of Environment and Natural Resources (NCDENR) Stormwater BMP Manual, the near surface soils in Onslow County arc classified as Hydrologic Group B. Structural measures will be required for conveying and controlling increases in Stormwater runoff directly related to the increase in impervious area due to the Lincoln Park School Development. These measures will be designed to meet both the quantity and quality requirements for the State of North Carolina as described in Section V. Runoff from rainfall events will be controlled by a series of drainage inlets and will be conveyed using underground piping networks. Each of these networks will empty directly into an on -site wet pond. One wet pond BMP has been designed to control and treat stormwater runoff from the school development. The location of the proposed pond is illustrated on Appendix B: School Site Plan. The wet pond controlling and treating runoff from the school development will outfall into an unnamed ditch on the west side of the subject property. Due to the fact that the outfall will be adjacent to delineated wetlands, the discharge from the wet pond will be decreased using a plunge pool. The unnamed ditch flows to an existing culvert under a dirt road and outfalls into Morgan Bay, an arm of the New River. The stormwater networks and wet pond will treat runoff from the entire project area with exception to approximately I grassed acre on the north boundary, which will sheet flow to existing culverts on Brewster Boulevard. The proposed pond will have a footprint area of approximately 1.35 acres (normal water surface area). The wet pond is expected to have a minimum of 3:1 side slopes with a 10' wide aquatic bench with 10:1 side slopes. The proposed pond will have a forebay sized at 20% of the volume of the permanent pool. The bottom elevations are expected to be 5.0' below the normal water surface elevation for all the proposed ponds. The volume between the pond bottom and the normal pool is considered the water quality or permanent pool volume. The volume above the normal pool elevation is for water quantity (stormwater management). Based on the existing wetland areas and groundwater information, we expect the normal water surface elevations can be maintained by the groundwater. The existing and proposed drainage systems will be evaluated for peak flow rates using ICPR software. [CPR utilizes SCS curve number methods of generating hydrographs. Rational Method (Q=CIA), Manning's Equation, and StonnCAD software will also be used in the design of the proposed stormwater system. A Manning's n value of 0.013 will be used for the storm sewer pipe. VII. Erosion Control Erosion and Sedimentation control measures shall be designed in accordance with 15A NCAC, Chapter 4 (NC Sedimentation Pollution Control Act of 1973). The project site will be surrounded by silt fence and all existing and proposed stormwater structures will be fitted with inlet protection devices to prevent sediment from exiting the project site. Tree protection will be utilized in all tree -save areas. The proposed pond is anticipated to act as temporary sediment basins during construction. I ♦1 t 1 v 11 Gall Lb se n as � s'' a'♦ � -G�� i ry;.�`q 2 ryy g GEVA % EwSTE .. a1Par dI 5 tel;\ a IJ EVAR TER,-- Golf Course WHITE' -'--)OAK .Tank "-�'� q •} 47 l. o Q 4 o , ry 3 11� 0'R C A N' � Y. 4... 4 F Y .' �� ��: ,,� • I,d I a LEGEND SUBJECT PROPERTY LIMITS _ LINCOLN PARK SCHOOL DEVELOPMENT CAMP LEJEUNE N FIGURE 1 �— — ONSLOW COUNTY, NC ^ SITE VICINITY Kimley-Horn DATA SOURCE: U.S.G.S., SNEADS FERRY, NC QUAD /\\\\\ TOPOGRAPHIC MAP and Associates, Inc. 7.5 MINUTE TOPO SERIES 1 1 INCH EQUALS 1,500 FEET --{ w.77vwvm-�v4vwrly�-,^� j 7REC. -�0�`jE:� OCT 9 ?009 BY: REPORT OF SUBSURFACE INVESTIGATION AND GEOTECHNCIAL ENGINEERING SERVICES Camp Lejeune New Elementary School Camp Lejeune, North Carolina G E T PROJECT NO: EC09-228G September 11, 2009 Revised: September 15, 2009 Prepared for Kimley-Horn and Associates, Inc. Suite 300 501 Independence Parkway Chesapeake, Virginia 23320 ATTN: MR. Thomas J. Sauro, P.E. Prepared by GET Solutions, Inc. 504 E. Elizabeth Street Ste. 2, Elizabeth City, NC 27909 ♦ Phone 252-335-9765 ♦ Fax 252-335-9766 info@getsolutionsinc.com I Solut10n5'? Ir1C TO: Kimley-Horn and Associates, Inc. Suite 300 501 Independence Parkway Chesapeake, Virginia 23320 Attn: Mr. Thomas J. Sauro, P.E. September 11, 2009 OCT 0 O ?009 BY: RE: Final Report of Subsurface Investigation and Geotechnical Engineering Services Camp Lejeune New Elementary School Camp Lejeune, North Carolina GET Project No: EC09-228G Revised. September 15, 2009 Dear Mr. Sauro: In compliance with your instructions, we have completed our Subsurface Investigation and Geotechnical Engineering Services for the referenced project. The results of this study, together with our recommendations, are presented in this report. Often, because of design and construction details that occur on a project, questions arise concerning subsurface conditions. G E T Solutions, Inc. would be pleased to continue its role as Geotechnical Engineer during the oroiect implementation. We trust that the information contained herein meets your immediate need, and we would ask that you call this office with any questions that you may have. Respectfully Submitted, �.•"•��"''., G E T Solutions, Inc. °p��...cA�.01G/ SEAL l' _ 034336 Gerald W. Stalls Jr., P.E. .......... �c � qu Senior Project Engineer oW, SA NC Reg. #034336 CAR oFEss;6" Camille A. Kattan, P.E. SEAL 01410..5 Principal Engineer NC Reg. # 014103 Copies: (3) Client "' � 110" 504 Gast Elizabeth Sneee Suite 2 • Elizabeth Cirv, NC 27909 • Phone: (252)335-9765 • Fax: (252)335 -9766 illro (( Setsolutionsinc.00111 A OCT 0 9 2009 TABLE OF CONTENTS EXECUTIVESUMMARY..............................................................................................i 1.0 PROJECT INFORMATION..............................................................................1 1.1 Project Authorization...........................................................................................1 1.2 Project Description..............................................................................................1 1.3 Purpose and Scope of Services.........................................................................1 2.0 FIELD AND LABORATORY PROCEDURES..................................................3 2.1 Field Exploration.................................................................................................3 2.2 Laboratory Testing..............................................................................................5 3.0 SITE AND SUBSURFACE CONDITIONS........................................................6 3.1 Site Location and Description.............................................................................6 3.2 Site Geology........................................................................................................7 3.3 Subsurface Soil Conditions.................................................................................7 3.4 Groundwater Information....................................................................................8 4.0 EVALUATION AND RECOMMENDATIONS....................................................9 4.1 Clearing and Grading..........................................................................................9 4.2 Subgrade Preparation.......................................................................................10 4.3 Structural Fill and Placement............................................................................10 4.4 Suitability of On -Site Soils.................................................................................11 4.5 Shallow Foundation Design Recommendations...............................................11 4.6 Shallow Foundation Settlements......................................................................12 4.7 Shallow Foundation Excavations......................................................................12 4.8 Floor Slabs........................................................................................................13 4.9 Pavement Design..............................................................................................13 4.10 Seismic Evaluation............................................................................................15 4.11 Storm Water Design Parameters......................................................................16 5.0 CONSTRUCTION CONSIDERATIONS.........................................................17 5.1 Drainage and Groundwater Concerns..............................................................17 5.2 - Site Utility Installation ............. :............ :............................................................. 17 5.3 Excavations.......................................................................................................18 6.0 REPORT LIMITATIONS.................................................................................18 APPENDIX I BORING LOCATION PLAN APPENDIX II BORING LOGS APPENDIX III GENERALIZED SOIL PROFILE APPENDIX IV SUMMARY OF CBR TEST DATA APPENDIX V DCP TEST DATA APPENDIX VI PAVEMENT DESIGN ANALYSIS APPENDIX VI SATURATED HYDRAULIC CONDUCTIVITY TEST RESULTS APPENDIX VIII CLASSIFICATION SYSTEM FOR SOIL EXPLORATION Final Report of Subsurface Investigation and Geotechnical Engineering Services September 11, 2009 Camp Lejeune New Elementary School Camp Lejeune, North Carolina =BY: 7 GET Project No: EC09-228G Revised: September 15, 2009 EXECUTIVE SUMMARY The project site is generally located along the south side of Brewster Boulevard within the Camp Lejeune military installation in North Carolina. The construction at this site is planned to consist of building a new 500-student elementary school structure, associated parking lot, paved roadways, storm water management (BMP) ponds, and other pertinent infrastructure components. Our field exploration program included twelve (12) 25-foot deep SPT borings, two (2) 15-foot deep SPT borings, as well as six (6) 10-foot deep hand auger boring drilled by G E T Solutions, Inc. within the footprints of the proposed structure, pavement areas, and storm water management pond (BMP) areas. A brief description of the natural subsurface soil conditions is tabulated below: RANGES OF AVERAGE STRATUM DESCRIPTION SPT(') N- DEPTH (Feet) VALUES 0.0 to Topsoil 4 to 12 inches of Topsoil 0.3 — 1.0 0.3to 1.0 1 SAND (SP, SP-SM, SM, SC-SM, SC) with varying 2 to 25 10, 15, or 25 amounts of silt and/or clay 3.0 — 4.5 Lean CLAY (CL); Borings CBR-7 through to II CBR-9 only 5.5 — 6.0 18.0 — 23.0 Fat CLAY (CH); Borings B-1 and B-2 only 12 to 16 23.toIII Note (1) SPT = Standard Penetration Test, N-Values in Blows -per -foot The groundwater level was recorded at the boring locations and as observed through the wetness of the recovered soil samples during the drilling operations. The initial groundwater table was measured to occur at depths ranging from 11 to 15 feet below varying_ existing site grades at the boring locations, which corresponded to an elevation ranging from 6 to 10.5 feet MSL. A groundwater monitoring well was installed at the location of boring BMP-2 and 48-hour groundwater readings were noted to indicate a static water level of 12.5 feet below existing grades, which corresponded to an elevation of 9 feet MSL. Solutbns:�lhc'1 i�"x'It'.(;s OCT 0 D 2009 JBY' Final Report of Subsurface Investigation and Geotechnical Engineering Services September 11, 2o09 Camp Lejeune New Elementary School Camp Lejeune, North Carolina GET Project No: EC09-228G Revised: September 15, 2009 The following preliminary evaluations and recommendations were developed based on our field exploration and laboratory -testing program: • Field testing program during construction to include, subgrade proofrolling, compaction testing, and foundation excavation observations for bearing capacity verification. All other applicable testing, inspections, and evaluations should be performed as indicated in the North Carolina State Building Code (2006 International Building Code with North Carolina Amendments) and/or UFC (Unified Facilities Criteria). • An estimated cut depth ranging from approximately 8 to 12 inches will be required to remove the topsoil and associated root mat. • The subgrade evaluation procedures should include a series of test pit excavations to further evaluate these soils and to substantiate their suitability to remain in -place. This is particularly recommended within the vicinity of boring B- 17 as the shallow subsurface granular soils to a depth of about 2 feet were noted to contain trace amounts of organics. • Some subgrade improvements should be anticipated within the construction areas (undercutting and backfilling with select fill) as a result of potentially unsuitable/unstable cohesive subgrade soils. • Building shallow foundations designed using a net allowable bearing capacity of 2,000 psf (24-inch embedment, 24-inch width). • Estimated post -construction total and differential settlements for the buildings up to 1-inch and Yz-inch, respectively. • Based on our experience with similar construction in the general area of the project site, the site is within a site class 'D' in accordance with Table 1615.1.1 of the 2006 International Building Code. This summary briefly discusses some of the major topics mentioned in the attached report. Accordingly, this report should be read in its entirety to thoroughly evaluate the contents. Solutlons;ilric' �"t'"t�,ryi3 OCT 0 01 3009 Final Report of Subsurface Investigation and Geotechnical Engineering Services I September 11, 2009 Camp Lejeune New Elementary School ��------- Camp Lejeune, North Carolina GET Project No: EC09-228G Revised: September 15, 2009 1.0 PROJECT INFORMATION 1.1 Project Authorization G E T Solutions, Inc. has completed our subsurface investigation and geotechnical engineering services for the proposed Camp Lejeune New Elementary School project located along the south side of Brewster Boulevard within the MCB Camp Lejeune military installation in North Carolina. The Geotechnical Engineering Services were conducted in general accordance with G E T Solutions, Inc. Proposal No. PEC09-116G, dated February 5, 2009 and revised/resubmitted on the date of February 6, 2009. Furthermore, these services were provided in conjunction with our previously completed feasibility study reported on the date of October 14, 2008 (GET Project No. EC08-321 G). Authorization to proceed with the Geotechnical Engineering Services was received from Mr. Tom Sauro of Kimley-Horn and Associates, on the date of July 28, 2009 in the form of an email. 1.2 Project Description The construction at the site is planned to consist of building a new 500-student elementary school structure (approximately 76,500 square feet in plan area with an additional 31,300 square feet of possible future addition), associated parking lot, paved roadways, stormwater management (BMP) ponds, and other pertinent infrastructure components. The proposed school is anticipated to consist of a single story building constructed of a combination of load bearing concrete masonry unit (CMU) walls, and structural steel frame design supported by shallow foundations. The proposed loading conditions associated with the structure are not known at the time. However, based on our experience with similar projects the maximum column and wall loads are not anticipated to exceed about 100 kips and 6 klf, respectively. The first floors are anticipated to be of slab -on -grade design with their distributed loads not expected to exceed 150 pounds per square foot. The structure's first floor elevation will be located at about 25 feet MSL. The existing grade elevations throughout the proposed project site generally ranged from about 19.5 to 23 feet MSL, as indicated on the topographic site plan provided by Kimley-Horn and Associates, Inc. Accordingly, fill operations are anticipated to range from about 1.5 to 5 feet in order to establish the design grade elevations. If any of the noted information is incorrect or has changed, please inform G E T Solutions, Inc. so that we may amend the recommendations presented in this report, if appropriate. 1.3 Purpose and Scope of Services The purpose of this study was to obtain information on the general subsurface conditions at the proposed project site. The subsurface conditions encountered were then evaluated with respect to the available project characteristics. In this regard, engineering assessments for the following items were formulated: Solunons;llnc."1;a",t<S': Final Report of Subsurface Investigation and Geotechnical Engineering Services September 11, 2009 Camp Lejeune New Elementary School Camp Lejeune, North Carolina\�r .a�% TF GET Project No: EC09-228G Revised: September 15, 2009 OCT ,0 0 �009 1. General assessment of the soils revealed by the borings performed at the proposed development. IBY: 2. General location and description of potentially deleterious material encountered in the borings that may interfere with construction progress or structure performance, including existing fills orsurficial/subsurface organics. 3. Soil subgrade preparation, including stripping, grading, and compaction. Engineering criteria for placement and compaction of approved structural fill material. 4. Construction considerations for fill placement, subgrade preparation, and foundation excavations. 5. Feasibility of utilizing a shallow foundation system for support of the proposed structure. Design parameters required for the foundation systems, including foundation sizes, allowable bearing pressures, foundation levels, and expected total and differential settlements. 6. Seismic site classification provided based on the results of the 25-foot deep SPT borings performed at the project site as well as our experience with similar projects located in the vicinity of the site. 7. Typical pavement sections based on the field exploration activities [five (5) 10-foot deep hand auger borings with Dynamic Cone Penetrometer (DCP) testing and five (5) CBR tests] and our experience with similar soil conditions. 9. Permeability (infiltration) values and storm water design parameters are provided based on our field exploration activities (permeability tests) and our experience with similar soil conditions. The scope of services did not include an environmental assessment for determining the presence or absence of wetlands or hazardous or toxic material in the soil, bedrock, surface water, groundwater or air, on or below or around this site. Any statements in this report or on the boring logs regarding odors, color, unusual or suspicious items or conditions are strictly for the information of the client. Prior to development of this site, an environmental assessment is advisable. Solutions fltiic�P?"+r�sV Final Report of Subsurface Investigation and Geotechnical Engineering Services September 11, 2009 Camp Lejeune New Elementary School Camp Lejeune, North Carolina E- 2.1 In order to explore the general subsurface soil types and to aid in developing associated foundation design parameters, a total of ten (10) 25-foot deep Standard Penetration Test (SPT) borings (designated as B-13 through B-22) were drilled by G E T Solutions, Inc. within the limits of the proposed structure. The recently completed borings were performed in conjunction with, and labeled consecutively with the previously completed borings associated with the project's feasibility study as well as the subsurface exploration procedures recently completed for the proposed Family Housing MCB Camp Lejeune project reported on the date of September 11, 2009 (GET Project No. EC09-227G). Additionally, a total of two (2) 25-foot deep SPT borings (designated as B-1 and B-2) were completed during our original feasibility study of the project site and provided in our report dated October 14, 2008 (GET Project No. EC08-321 G). Accordingly, the borings performed during our initial feasibility study for the proposed project (B-1, B-2, and CBR-2) are included herein. Whereas, the remaining borings identified as B-3 through B-12, CBR-1, CBR-3, and CBR-4, are not provided as they were not performed within the limits of the school site. In order to explore the general subsurface soil types and to aid in developing associated pavement design parameters, five (5) 10-foot deep hand auger borings (designated as CBR-5 through CBR-9) were drilled within the proposed pavement areas. Additionally, one (1) 10-foot deep hand auger boring (designated as CBR-2) was completed within the proposed pavement areas during our previously referenced feasibility study of the project site. Dynamic Cone Penetrometer (DCP) testing and bulk soil sampling was performed at each of the pavement boring locations. The bulk subgrade soil samples were collected from depths ranging from 0.5 to 2.0 feet below existing grades. The bulk soil samples were returned to our laboratory and subjected to CBR testing in accordance with ASTM standards. Finally, in order to explore the general subsurface soil types and to aid in developing associated storm water design parameters, two (2)15-foot deep SPT borings (designated as BMP_ -1 and BMP-2) were performed within the proposed storm water management pond area. Additionally, a groundwater monitoring well was installed at the boring location identified as BMP-2. 3 FSdu=t1ons11ncW.M Final Report of Subsurface Investigation and Geotechnical Engineering Services September 1-1-20091-- - Camp Lejeune New Elementary School Camp Lejeune, North Carolina OCT 0 n ?009 GET Project No: EC09-228G Revised: September 15, 2009 Standard Penetration Tests were performed in the field in general accordance \ iRCASTM D 1586. The tests were performed continuously from the existing ground surface to depths of 12 feet, and at 5-foot intervals thereafter. The soil samples were obtained with a standard 1.4" I.D., 2" O.D., 30" long split -spoon sampler. The sampler was driven with blows of a 140 lb. hammer falling 30 inches. The number of blows required to drive the sampler each 6-inch increment of penetration was recorded and is shown on the boring logs. The sum of the second and third penetration increments is termed the SPT N-value. A representative portion of each disturbed split -spoon sample was collected with each SPT, placed in a glass jar, sealed, labeled, and returned to our laboratory for review. Following the exploration procedures, the borings were backfilled with a neat cement grout mix in accordance with NCDENR requirements, excluding the locations where groundwater monitoring wells were installed. More specific information regarding boring locations and depths is provided in the following table (Table I - Boring Schedule). Table I - Boring Schedule Boring GIPS Coordinates Boring Boring Surface Depth goring Location Description Number Elevation Latitude Longitude (feet) (ft MSL)- B-1 25 19.0 South of West Wing (Referenced from Site Plan 340 42 821' 770 22 191' Provided on July 28, 2009 Parking Lot; West End; Approximate Center B-2 25 21.5 (Referenced from Site Plan Provided on 340 42.809' 770 22.099' July 28, 2009 B-13 25 21.5 Future Addition; North Wing; Approximate 340 42 901' 770 22 151' Center of North End B-14 25 22.5 Future Addition; East Wing; Approximate 340 42.876' 770 22.090' Northeast Corner B-15 25 21.5 North Wing; Approximate Center of North End 340 42.873' 770 22.146' B-16 25 20.5 North Wing; Approximate Center 340 42.857' 770 22.144' B-17 25 22.0 East Wing; Approximate Southeast Corner 340 42.860' 770 22.110' B-18 25 20.5 Future Addition; West Wing; Approximate 34042.840' 77022.207' Center of West End B-19 25 -- 20.5 West Wing; Approximate Center 340 42 842' 770 22 174' B-20 25 21.0 Approximate Center of School 340 42.841' 770 22.142' B-21 25 21.0 South Wing; Approximate Northwest Corner 340 42.819' 770 22.153' B-22 25 22.0 South Wing; Approximate Center of South End 340 42.802' 770 22A 35' Perimeter Drive Lane; Northwest of School CBR-2 10 21.5 (Referenced from Site Plan Provided on 340 42.880' 770 22.179' July 28, 2009 ' = Surface elevations are estimated based on the topographic information provided by Kimley-Horn and Associates, Inc. Solutions\Inc. Final Report of Subsurface Investigation and Geotechnical Engineering Services September 11, 2009 Camo Leieune New Elementary School Camp Lejeune, North Carolina EC �,�0. VED GET Project No: EC09-228G Revised: September 15, 2009 OCT 0 " ?009 ly: Table I — Boring Schedule: Continued _f Boring GPS Coordinates Boring BoringSurface Depth Boring Location Description Number Ele ation Latitude Longitude (feet) (ft MSL)* CBR-5 10 22.5 Parking Lot; North End; Approximate 340 42 844 770 22 075' Center of Drive Lane CBR-6 10 22,5 Parking Lot; East End; Approximate Center 340 42.819' 770 22,060' CBR-7 10 22.0 Parking Lot, Approximate Center 340 42.800' 770 22.076' CBR-8 10 21.0 Parking Lot; Approximate Southwest Corner 340 42.784' 770 22.085' CBR-9 10 21.0 Parking Lot; South Drive Lane Egress 340 42.776' 1 770 22.057' BMP-1 15 20.5 BMP Storm Water Pond South of School; 340 42.740' 770 22.193' Approximate North End BMP-2 15 21.5 BMP Storm Water Pond South of School; 340 42 712' 770 22 165' Approximate Southeast End ' = Surface elevations are estimated based on the topographic information provided by Kimley-Horn and Associates, Inc. The previously indicated boring locations were established and were identified in the field by G E T Solutions Inc. personnel with the use of a Global Positions System unit as well as the "State Plane" coordinates selected from the project site plan and converted to latitude and longitude coordinates. The approximate boring locations are shown on the "Boring Location Plan" attached to this report (Appendix I, Figure 1). This plan was developed based on the site plan provided to G E T Solutions, Inc. by Kimley-Horn and Associates, Inc. 2.2 Laboratory Testing Representative portions of all soil samples collected during drilling were sealed in glass jars, labeled and transferred to our laboratory for classification and analysis. The soil classification was performed by a Geotechnical Engineer in accordance with ASTM D2488. Nine (9) representative soil samples were selected and subjected to laboratory testing, which included natural moisture, 4200 sieve wash, and/or Atterberg Limits testing and analysis, in order to corroborate the visual classification. These test results are provided in the following table (Table II — Laboratory Test Results) and are presented on the "Boring Log" sheets (Appendix II), included with this report. Solutlonsilnc. Final Report of Subsurface Investigation and Geotechnical Engineering Services Camp Lejeune New Elementary School Camp Lejeune, North Carolina GET Project No: EC09-228G Revised: September 15, 2009 Table II - Laboratory Test Results September 11,„ 2009. OCT 0 2009 By. Boring No. Sample Type Depth (Feet) Natural Moisture % % Passing #200 Atterberg Limits LL/PL/PI USCS Classification B-1 SS 4-6 12 20.6 Not Tested SM B-13 SS 0-2 15.7 38.4 28/19/9 SC B-15 SS 4-6 8.3 10.6 Not Tested SP-SM B-17 SS 13-15 22.0 4.7 Not Tested SP B-19 SS 4-6 16.1 45.2 32/13/19 SC B-21 SS 13-15 22.4 10.0 Not Tested SP-SM BMP-1 SS 9.5-10 6.3 1.8 Not Tested SP BMP-2 SS 9.5-10 7.2 2.0 Not Tested SP BMP-2 SS 10-12 13.1 11.8 Not Tested SP-SM SS = Split Spoon Sample The six (6) bulk soil samples (CBR-2 and CBR-5 through CBR-9) were subjected to Atterberg Limits, natural moisture content, gradation analysis, standard Proctor, and CBR testing in accordance with ASTM standards. A comprehensive summary of the CBR test data and the moisture density relationship curves (Proctors) are presented in Appendix IV. Additionally, the results of the field DCP testing procedures are presented in Appendix V. 3.0 SITE AND SUBSURFACE CONDITIONS 3.1 Site Location and Description The project site is located along the south side of Brewster Boulevard just east of the intersection with Charles Street in the Camp Lejeune military installation in North Carolina. The site currently consists of an undeveloped wooded parcel with an existing dirt roadway located to the southeast of the site. Existing grade elevations throughout the proposed project site generally ranged from about 19.5 to 23 feet MSL, as indicated on the topographic site plan provided by Kimley-Horn and Associates, Inc. Furthermore, the site was visually estimated to be relatively level with less than 1 to 2 feet of change in elevation in 50 linear feet. The project site is bordered to the east by the a wooded area followed by an existing recreational area associated with an existing school, to the north by Brewster Boulevard followed by a wooded parcel, and to the west and south by a wooded parcel. Soliitldn"s�lnc.:, Final Report of Subsurface Investigation and Geolechnical Engineering Services September 11, 2009 Camp Lejeune New Elementary School Camp Lejeune, North Carolina =09 GET Project No: EC09-228G Revised: September 15, 20093.2 Site Geology The project site lies within a major physiographic province called the Atlantic Coastal Plain. Numerous transgressions and regressions of the Atlantic Ocean have deposited marine, lagoonal, and fluvial (stream lain) sediments. The regional geology is very complex, and generally consists of interbedded layers of varying mixtures of sands, silts and clays. Based on our review of existing geologic and soil boring data, the geologic stratigraphy encountered in our subsurface explorations generally consisted of marine deposited sands, silts and clays. 3.3 Subsurface Soil Conditions The results of our recently and previously completed soil test borings at this site indicated the presence of approximately 4 to 12 inches of topsoil material at the boring locations. Underlying the surficial organic materials (Topsoil) and extending to the boring termination depths of 10, 15, and 25 feet below existing site grades, the natural subsurface soils were generally uniform throughout the site. These soils were noted to be primarily granular in nature and were classified as SAND (SP, SP-SM, SM, SC-SM, SC) with varying amounts of silt and clay. The Standard Penetration Test (SPT) results, N-values, recorded within these granular soils ranged from 2 to 25 blows -per -foot (BPF), indicating a very loose to medium dense relative density. The granular soils encountered at the location of boring 13- 17 at a depth ranging from 0.8 to 2 feet below existing grades were noted to contain trace amounts of organics. Finally, deposits of CLAY (CL, CH) were encountered within the subsurface granular soils at varying depths ranging from 4 to 6 feet and 18 to 25 feet below the existing site grade elevations at the location of borings B-1, B-2, and CBR-7 through CBR-9. The subsurface description is of a generalized nature provided to highlight the major soil strata encountered. The records of the subsurface exploration are included in Appendix II (Boring Log sheets) and in Appendix III (Generalized Soil Profile), which should be reviewed for specific information as to the individual borings. The stratifications shown on the records of the subsurface exploration represent the conditions only at the actual boring locations. Variations may occur and should be expected between boring locations. The stratifications represent the approximate boundary between subsurface materials and the transition may be gradual. Solutlonsuinc RECO Wic'.1� OCT 0 0 2009 Final Report of Subsurface Investigation and Geotechnical Engineering Services September 11, 2009 Camp Lejeune New Elementary School Camp Lejeune, North Carolina GET Project No: EC09-228G Revised: September 15, 2009 3.4 Groundwater Information The groundwater level was recorded at the location of borings B-1, B-2, B-13 through B-22, and BMP-2 as observed through the wetness of the recovered soil samples during the drilling operations. The initial groundwater table was measured to occur at depths ranging from 11 to 15 feet below current grades at the boring locations. Based on the site topography information provided by Kimley-Horn and Associates, Inc., the encountered groundwater level corresponds to an elevation generally ranging from 6 to 10.5 feet MSL. The groundwater level was not encountered at the location of borings CBR-2, CBR-5 through CBR-9, and BMP-1. The varying groundwater depths and elevations appear to have been contributed by variations of the existing site grade elevations in combination with the natural site drainage features. The boreholes were backfilled upon completion for safety considerations. As such, the reported groundwater levels may not be indicative of the static groundwater level. However, a groundwater monitoring well was installed at the location of boring BMP-2. The static groundwater level encountered following a period of 48-hours after the monitoring well was installed was noted to occur at a depth of 12.5 feet below the existing site grade elevations (elevation of 9 feet MSL). More specific information regarding the 48-hour groundwater readings and estimated seasonal high groundwater depths and elevations for each boring location within the proposed storm water management (BMP) pond areas are provided in the following table (Table III — Groundwater Summary). Additionally, Table III includes the average estimated seasonal high ground water elevations for each BMP pond location. Table III — Groundwater Summary 48-hour Estimated Average Estimated Boring Initial 48-hour Groundwater Seasonal High Seasonal High No. Groundwater Groundwater Elevation Groundwater Groundwater Level (ft)* Level (ft)* (ft MSL) ** Elevation ** Elevation ft MSL ft MSL)** Not Monitoring Monitoring Well BMP POND #6 BMP-1 Encountered Well Not Not Installed 10.5 Average Estimated Installed SHWT Elevation = fl.25 BMP-2 15.0 12.5 9.0 12.0 = Groundwater levels noted above are referenced from the existing site grade elevations encountered at the individual boring locations. ' = 48 hour groundwater elevations and estimated seasonal high groundwater elevations are estimated based on the topographic information provided by Kimley-Horn and Associates, Inc. Solutlonsltnc. OCT 0 g 2009 Final Report of Subsurface Investigation and Geotechnical Engineering Services September 11, 2009 Camp Lejeune New Elementary School IBY: J Camp Lejeune, North Carolina GET Project No: EC09-228G Revised: September 15, 2009 As previously noted, the seasonal high ground water elevation information noted in Table III is considered to be estimated and is based on the results of our visual soil classification program. Additionally, the static ground water levels encountered at the monitoring well locations as well as the seasonal high ground water levels are likely affected by variations in seasonal precipitation magnitudes, in -situ soil conditions throughout the BMP pond areas, in conjunction with the existing and finished elevations. Perched groundwater levels are anticipated to occur throughout the site as a result of potential restrictive SAND (SC, SC-SM), and/or CLAY (CL), which were encountered throughout the site at depths ranging from 0.6 feet to 8 feet. Groundwater conditions will vary with environmental variations and seasonal conditions, such as the frequency and magnitude of rainfall patterns, as well as man-made influences, such as existing swales, drainage ponds, underdrains and areas of covered soil (paved parking lots, sidewalks, etc.). Seasonal groundwater fluctuations of±2 feet are common in the project's area; however, greater fluctuations have been documented. We recommend that the contractor determine the actual groundwater levels at the time of the construction to determine groundwater impact on the construction procedures. 4.0 EVALUATION AND RECOMMENDATIONS Our recommendations are based on the previously discussed project information, our interpretation of the soil test borings and laboratory data, and our observations during our site reconnaissance. If the proposed construction should vary from what was described, we request the opportunity to review our recommendations and make any necessary changes. 4.1 Clearing and Grading The proposed construction area should be cleared by means of removing the existing topsoil and associated root mat. It is estimated that a cut ranging from approximately 8 to 12 inches in depth will be required to remove the topsoil and its associated root mat and expose the underlying SAND (SP-SM, SM, SC-SM, SC). This cut is expected to extend deeper in isolated areas to remove deeper deposits of unsuitable material which become evident during the clearing. It is recommended that the clearing operations extend laterally at least 5 feet beyond the perimeter of the proposed construction areas. Following the initial clearing, the resulting exposed subgrade will generally be comprised of SAND (SM, SC-SM, SC) containing an appreciable amount of fines. Accordingly, combinations of excess surface moisture from precipitation ponding on the site and the construction traffic, including heavy compaction equipment, may create pumping and general deterioration of the bearing capabilities of the surface soils. Therefore, undercutting to remove loose/soft soils in isolated areas should be expected. The extent of the undercut will be determined in the field during construction based on the outcome of the field testing procedures (subgrade proofroll). In this regard, and in order to reduce undercutting, care should be exercised during the grading and construction operations at the site. GET OCT 0 0 200J Final Report of Subsurface Investigation and Geotechnical Engineering Services IBY; Sep4ember_19,.2009_J Camp Lejeune New Elementary School Camp Lejeune, North Carolina GET Project No: EC09-228G Revised: September 15, 2009 Furthermore, inherently wet subgrade soils combined with potential poor site drainage make this site particularly susceptible to subgrade deterioration. Thus, grading should be performed during a dry season if at all possible. This should minimize these potential problems, although they may not be eliminated. The project's budget should include an allowance for subgrade improvements (undercut and backfill with structural fill or aggregate base in the building and pavement areas). 4.2 Subgrade Preparation Following the clearing operation, the exposed subgrade soils should be densified with a large static drum roller. After the subgrade soils have been densified, they should be evaluated by G E T Solutions, Inc. for stability. Accordingly, the subgrade soils should be proofrolled to check for pockets of loose material hidden beneath a crust of better soil. Several passes should be made by a large rubber -tired roller or loaded dump truck over the construction areas, with the successive passes aligned perpendicularly. The number of passes will be determined in the field by the Geotechnical Engineer depending on the soils conditions. Any pumping and unstable areas observed during proofrolling (beyond the initial cut) should be undercut and/or stabilized at the directions of the Geotechnical Engineer. Following the proofroll operation it is recommended that a series of test pit excavations be performed within the vicinity of boring B-17 to further evaluate the shallow subsurface soils noted to contain trace amounts of organics and to determine if they are suitable to remain in -place for slab -on -grade and/or foundation support. At that time the locations and depths of the test pit excavations should be determined by the Geotechnical Engineer. Following the proofroll and approval by the engineer, it is recommended that the newly exposed subgrade soils be compacted to a dry density of at least 95 percent of the Modified Proctor maximum dry density (ASTM D1557), as tested to a depth of at least 12 inches. 4.3 Structural Fill and Placement Following the approval of the natural subgrade soils by the Geotechnical Engineer, the placement of the fill required to establish the design grades may begin. Any material to be used for structural fill should be evaluated and tested by G E T'Solutions, Inc. prior to placement to determine if they are suitable for the intended use. Suitable structural fill material should consist of sand or gravel containing less than 20% by weight of fines (SP, SM, SW, GP, GW), having a liquid limit less than 20 and plastic limit less than 6, and should be free of rubble, organics, clay, debris and other unsuitable material. Solutloiis�Iric., . , � Final Report of Subsurface Investigation and Geotechnical Engineering Services September 11, 2009 Camp Lejeune New Elementary School Camp Lejeune, North Carolina `— �,�✓.��1.✓ GET Project No: EC09-228G Revised: September 15, 2009 OF, j 9009 Other soils types such as SAND (SC-SM, SC) and/or CLAY (CL) may be!usedas fill provided that they are properly placed and compacted as noted herein. These -soil -types _ are typically moisture sensitive and unstable conditions and/or the inability of the materials to be properly compacted may occur. Accordingly, should these soils be selected for use as fill it is considered necessary to allow them to be dried to a moisture content suitable for placement and compaction. All structural fill should be compacted to a dry density of at least 95 percent of the Modified Proctor maximum dry density (ASTM D1557). In general, the compaction should be accomplished by placing the fill in maximum 10-inch loose lifts and mechanically compacting each lift to at least the specified minimum dry density. A representative of GET Solutions, Inc. should perform field density tests on each lift as necessary to assure that adequate compaction is achieved. Backfill material in utility trenches within the construction areas should consist of structural fill (as previously above), and should be compacted to at least 95 percent of ASTM D1557. This fill should be placed in 4 to 6 inch loose lifts when hand compaction equipment is used. Care should be used when operating the compactors near existing structures to avoid transmission of the vibrations that could cause settlement damage or disturb occupants. In this regard, it is recommended that the vibratory roller remain at least 25 feet away from existing structures; these areas should be compacted with small, hand -operated compaction equipment. 4.4 Suitability of On -site Soils The subsurface CLAY (CL, CH) and/or SAND (SC and SC-SM) soils encountered at the boring locations do not appear to meet the criteria recommended in this report for reuse as structural fill, but may be used as fill within green areas. However, the SAND (SP, SP-SM, and SM) soils may be suitable for reuse as structural fill. Further classification testing (natural moisture content, gradation analysis, and Proctor testing) should be performed in the field during construction to substantiate the suitability of excavated soils for reuse as fill within construction areas. 4.5 Shallow Foundation Design Recommendations Provided that the recommended earthwork construction procedures are properly performed, the proposed structure can be supported by shallow spread footings, bearing over firm natural soil or well compacted structural fill material. The footings can be designed using a net allowable soil pressure of up to 2,000 pounds per square foot (psf). In using net pressures, the weight of the footings and backfill over the footings, including the weight of the floor slab, need not be considered. Hence, only loads applied at or above the finished floor need to be used for dimensioning the footings. Solutions; tnc._ OCT 0 9 2009 Final Report of Subsurface Investigation and Geolechnical.Engineering:Servicesj September 11, 2009 Camp Lejeune New Elementary School Camp Lejeune, North Carolina GET Project No: EC09-228G Revised: September 15, 2009 In order to develop the recommended bearing capacity, the base of the footings should have an embedment of at least 24 inches beneath finished grades, and wall footings should have a minimum width of 24 inches. In addition, isolated square column footings are recommended to be a minimum of 3 feet by 3 feet in area for bearing capacity consideration. The recommended 24-inch footing embedment is considered sufficient to provide adequate cover against frost penetration to the bearing soils. 4.6 Shallow Foundation Settlements It is estimated that, with proper site preparation, the maximum resulting total settlement of the foundations should be up to 1 inch. The maximum differential settlement magnitude is expected to be less than 1/2-inch between adjacent footings (wall footings and column footings of widely varying loading conditions). The settlements were estimated on the basis of the results of the field penetration tests. Careful field control will contribute substantially towards minimizing the settlements. 4.7 Shallow Foundation Excavations In preparation for shallow foundation support, the footing excavations should extend into firm natural soil or well compacted structural fill. All foundation excavations should be observed by G E T Solutions, Inc. At that time, the Geotechnical Engineer should also explore the extent of excessively loose, soft, or otherwise unsuitable material within the exposed excavations. Also, at the time of footing observations, the Geotechnical Engineer may find it necessary to perform hand auger borings or use a hand penetration device in the bases of the foundation excavations. If pockets of unsuitable soils requiring undercut are encountered in the footing excavations, the proposed footing elevation should be re-established by means of backfilling with "flowable fill", an open graded washed stone (such as No. 57 stone or equivalent), or a suitable structural fill material compacted to a dry density of at least 95 percent of the Modified Proctor maximum dry density (ASTM D 1557), as described in Section 4.3 of this report. This construction procedure will provide for a net allowable bearing capacity of 2,000 psf. Immediately prior to reinforcing steel placement, it is suggested that the bearing surfaces of all footings be compacted using hand operated mechanical tampers, to a dry density of at least 95% of the Modified Proctor maximum dry density (ASTM D 1557) as tested to a depth of 12 inches, for bearing capacity considerations. In this manner, any localized areas, which have been loosened by excavation operations, should be adequately re - compacted. Solutions Inc.;�";t OCT 0 0 2009 Final Report of Subsurface Investigation and Geotechnical En gineering.Services September 11, 2009 Camp Lejeune New Elementary School Camp Lejeune, North Carolina GET Project No: EC09-228G Revised: September 15, 2009 Soils exposed in the bases of all satisfactory foundation excavations should be protected against any detrimental change in condition such as from physical disturbance, rain or frost. Surface run-off water should be drained away from the excavations and not be allowed to pond. If possible, all footing concrete should be placed the same day the excavation is made. If this is not possible, the footing excavations should be adequately protected. 4.8 Floor Slabs The floor slabs may be constructed as slab -on -grade members provided the previously recommended earthwork activities and evaluations are carried out properly. It is recommended that the ground floor slab be directly supported by at least a 4-inch layer of relatively clean, compacted, poorly graded sand (SP) or gravel (GP) with less than 5% passing the No. 200 Sieve (0.074 mm). The purpose of the 4-inch layer is to act as a capillary barrier and equalize moisture conditions beneath the slab. It is recommended that all ground floor slabs be "floating". That is, generally ground supported and not rigidly connected to walls or foundations. This is to minimize the possibility of cracking and displacement of the floor slabs because of differential movements between the slab and the foundation. Slab -on -grade post construction settlements should be limited to 1/2-inch or less. It is also recommended that the floor slab bearing soils be covered by a vapor barrier or retarder in order to minimize the potential for floor dampness, which can affect the performance of glued tile and carpet. Generally, use a vapor retarder for minimal vapor resistance protection below the slab on grade. When floor finishes, site conditions or other considerations require greater vapor resistance protection; consideration should be given to using a vapor barrier. Selection of a vapor retarder or barrier should be made by the Architect based on project requirements. 4.9 Pavement Design The California Bearing Ratio (CBR) test results indicated soaked CBR values ranging from 16.7 to 24.7, averaging 22.1. The in -situ field Dynamic Cone Penetrometer (DCP) test results indicated an in -place correlated CBR value ranging from about 6 to 8. The relatively low correlated CBR values obtained from the field DCP testing procedures is contributed to the very loose condition (not compacted) of the shallow subsurface soils. These associated CBR values will be greatly improved provided that the earthwork recommendations, including the subgrade preparation and fill placemenUcompaction procedures are successfully completed as recommended in Sections 4.2 and 4.3 of this report. A comprehensive summary of the CBR test data and the moisture density relationship curves (Proctors) are presented in Appendix IV. Additionally, the results of the field DCP testing procedures are presented in Appendix V. Solutlon3*ilnc.?9�il�il�M;4i�. R z-c OCT +0 200"' Final Report of Subsurface Investigation and Geotechnical Engineering Services September 11, 2009 Camp Lejeune New Elementary School Camp Lejeune, North Carolina GET Project No: EC09-228G Revised: September 15, 2009 The average CBR value obtained from the laboratory CBR testing procedures was multiplied by a factor of two-thirds to determine a pavement design CBR value. The two- thirds factor provides the necessary safety margins to compensate for some non -uniformity of the soil. Therefore, a CBR value of 14.7 was used in designing the pavement sections. Furthermore, the Average Daily Traffic (ADT) loading criteria provided by Kimley-Horn and Associates, Inc. and the information listed on the following page of this report were also used to complete the pavement design analysis, which was performed in accordance with AASHTO requirements. Should any of the information provided below be incorrect, G E T Solutions, Inc. should be notified to perform a subsequent analysis prior to paving operations. Parking Lot: Average Daily Traffic: Up to 1200 Vehicles Per Day Percent Trucks: 0% Design Life Criteria: 20 Years Percent Growth Rate: 0.0% Total Design ESALs: 4,835 Reliability = 75.0% Overall Deviation = 0.49 Soil Resilient Modulus = 12,221.6 psi Initial Serviceability = 4.20 Terminal Serviceability = 2.80 Service Road/Bus Loo Average Daily Traffic: Up to 20 Vehicles Per Day Percent Trucks: 100% Design Life Criteria: 20 Years Percent Growth Rate: 0.0% Total Design ESALs: 334,401 Reliability = 75.0% Overall Deviation = 0.49 Soil Resilient Modulus = 12,221.6 psi Initial Serviceability = 4.20 Terminal Serviceability = 2.80 The pavement sections provided in the following table were calculated using WinPAS software. Solutions, Inc: Fc.EC441a J' .� OCT 0 0 2009 Final Report of Subsurface Investigation and GedtC lnical En_ g veering Services September 11, 2009 Camp Lejeune New Elementary School Camp Lejeune, North Carolina GET Project No: EC09-228G Revised: September 15, 2009 Table IV —Pavement Sections ' Hot Mix Asphalt Aggregate Surface Surface Intermediate Section Base* Subgrade** SF-9.5A S-12.5 1-19B Service Road/Bus loop - ADT 20 Vehicles Per Da Heavy Duty Asphalt 1.5" N/A 2.5" 8" Firm, Stable, and Compacted Parkin Lot'- ADT 1200 Vehicles Per 'Day Standard Duty 2" N/A N/A 8„ Firm, Stable, and As halt Com acted NCDOT ABC compacted to a dry density of at least 100% of the Modified Proctor maximum dry density (ASTM D 1557). ** Compacted to a dry density of at least 100% of the Modified Proctor maximum dry density (ASTM D 1557). The results of the pavement design analysis are included in Appendix VI (Pavement Design Analysis). All pavement material and construction procedures should conform to Unified Facilities Criteria (UFC) and North Carolina Department of Transportation (NCDOT) requirements. Following pavement rough grading operations, the exposed subgrade should be observed under proofrolling. This proofrolling should be accomplished with a fully loaded dump truck or 7 to 10 ton drum roller to check for pockets of soft material hidden beneath a thin crust of better soil. Any unsuitable materials thus exposed should be removed and replaced with a well -compacted material. The inspection of these phases should be performed by the Geotechnical Engineer or his representative. The subgrade soils are likely to be unstable at the time of construction and some ground improvements are likely. As such, the project's budget should include a contingency to accommodate the potential ground improvements. Where excessively unstable subgrade soils are observed during proofrolling and/or fill placement, it is expected that these weak areas can be stabilized by means of thickening the base course layer by 2 to 4 inches and/or lining the subgrade with geotextile fabric (Mirafi 500x or equivalent). These alternatives are to be addressed by the Geotechnical Engineer during construction, if necessary, who will recommend the most economical approach at the time. 4.10 Seismic Evaluation It is noted that, in accordance with the NC Building Code; Chapter 16, this site is classified as a site Class D, based on which seismic designs should be incorporated. This recommendation is based on the data obtained from the completed 25-foot deep SPT borings as well as our experience with shear wave velocity testing performed on other projects within the vicinity of this project site. In order to substantiate the site classification provided above a 100-foot deep CPT boring and soil shear wave velocity testing with liquefaction potential analysis should be performed. G E T Solutions, Inc. would be pleased to provide these services should they be determined necessary. 15 GET OCT 0 0 2009 Final Report of Subsurface Investigation and Geotechnical Engineering Services September 11, 2009 Camp Lejeune New Elementary School I �= Camp Lejeune, North Carolina GET Project No: EC09-228G Revised: September 15, 2009 4.11 Storm Water Design Parameters Two (2) infiltration tests were performed at the location of borings BMP-1 and BMP-2. The tests were performed at a depth of approximately 10 feet below existing grades. The boreholes were prepared utilizing an auger to remove soil clippings from the base. Infiltration testing was then conducted within the vadose zone utilizing a Precision Permeameter and the following testing procedures. A support stand was assembled and placed adjacent to each borehole. This stand holds a calibrated reservoir (200 ml or 2000 ml) and a cable used to raise and lower the water control unit (WCU). The WCU establishes a constant water head within the borehole during testing by use of a precision valve and float assembly. The WCU was attached to the flow reservoir with a 4-meter (approximately 13-foot) braided PVC hose and then lowered by cable into the borehole to the test depth elevation. As required by the Glover solution, the WCU was suspended above the bottom of the borehole at an elevation of approximately 5 times the borehole diameter. The shut-off valve was then opened allowing water to pass through the WCU to fill the borehole to the constant water level elevation. The absorption rate slowed as the soil voids became filled and an equilibrium developed as a wetting bulb developed around the borehole. Water was continuously added until the flow rate stabilized. The reservoir was then re -filled in order to begin testing. During testing, as the water drained into the borehole and surrounding soils, the water level within the calibrated reservoir was recorded as well as the elapsed time during each interval. The test was continued until relatively consistent flow rates were documented. During testing the quick release connections and shutoff valve were monitored to ensure that no leakage occurred. The flow rate (Q), height of the constant water level (H), and borehole diameter (D) were used to calculate Ks utilizing the Glover Solution. Based on the field testing and corroborated with laboratory testing results (published values compared to classification tests), the hydraulic conductivity of the shallow soils is tabulated below (Table V) and is presented on the "Hydraulic Conductivity Worksheet" reports (Appendix VII), included with this report. Table V - Saturated Hydraulic Conductivity Test Results Test-._ Static Percent Silt Average Infiltration Test Test No. Depth (ft)* Groundwater and/or Clay Results (Ksat Values) Level (ft.)* cm/sec cm/day in/hour BMP-1 10 Not Encountered 1.8 5.88E-03 508.1 8.334 BMP-2 10 12.5 2.0 4.28E-03 370.1 6.071 * The ground water level was initially encountered at a depth of 15 feet below the existing site grade elevations at the location of BMP-2. The 48-hour groundwater level readings indicated a static water table level of 12.5 feet below the existing site grade elevations at the location of BMP-2. Groundwater was not encountered at the location of boring BMP-1. Soludons, Inc. OCT 0 0 2009 Final Report of Subsurface Investigation and Geotechnical.Engineering:Services September 11, 2009 Camp Lejeune New Elementary School Camp Lejeune, North Carolina GET Project No: EC09-228G Revised: September 15, 2009 5.0 CONSTRUCTION CONSIDERATIONS 5.1 Drainage and Groundwater Concerns It is expected that dewatering may be required for excavations that extend near or below the existing groundwater table. Dewatering above the groundwater level could probably be accomplished by pumping from sumps. Dewatering at depths below the groundwater level may require well pointing. If water collects in foundation excavations, it will be necessary to remove the water form the excavation, remove the saturated soils, and re -test the adequacy of the bearing surface soils to support the design bearing pressure prior to concrete placement. Perched water table conditions within the select fill materials and/or shallow subsurface soils may be encountered throughout the project site during periods of heavy precipitation and/or during the "wet" season. This is expected to occur as a result of the surficial and/or shallow subsurface restrictive soil layers generally encountered throughout the project site at depths ranging from 0.6 feet to 8 feet. Accordingly, some undercut and backfill with suitable structural fill materials and/or de - watering of the structural fill materials and/or shallow subsurface soils may be required during the subgrade preparation and/or foundation construction procedures. Alternatively, an under drain system may be used in order to aid in alleviating the potential for saturated bearing soil conditions and/or to aid in minimizing foundation undercutting procedures. It would be advantageous to construct all fills early in the construction. If this is not accomplished, disturbance of the existing site drainage could result in collection of surface water in some areas, thus rendering these areas wet and very loose. Temporary drainage ditches should be employed by the contractor to accentuate drainage during construction. If water collects in foundation excavations, it will be necessary to remove water from the excavations, remove saturated soils, and re -test the adequacy of the bearing surface soils to support the design bearing pressure prior to concrete placement. 5.2 Site Utility Installation The base of the utility trenches should be observed by a qualified inspector prior to the pipe and structure placements to verify the suitability of the bearing soils. If unstable bearing soils are encountered during installation some form of stabilization may be required to provide suitable bedding. This stabilization is typically accomplished by providing additional bedding materials (NCDOT No. 57 stone). In addition, depending on the depth of the utility trench excavation, some means of dewatering may be required to facilitate the utility installation and associated backfilling. All utility excavations should be backfilled with structural fill, as described in Section 4.3 of this report. Soludons;;lnce !>i Jl/\iD /A OCT 0 9 2009 Final Report of Subsurface Investigation and Geotechnical Engineering Services September 11, 2009 Camp Lejeune New Elementary School I'' i Camp Lejeune, North Carolina GET Project No: EC09-228G Revised: September 15, 2009 The subsurface CLAY (CL, CH) and/or SAND (SC and SC-SM) soils encountered at the boring locations do not appear to meet the criteria recommended in this report for reuse as structural fill, but may be used as fill within green areas. However, the SAND (SP, SP-SM, and SM) soils may be suitable for reuse as structural fill. Further classification testing (natural moisture content, gradation analysis, and Proctor testing) should be performed in the field during construction to substantiate the suitability of excavated soils for reuse as fill within construction areas. 5.3 Excavations In Federal Register, Volume 54, No. 209 (October, 1989), the United States Department of Labor, Occupational Safety and Health Administration (OSHA) amended its "Construction Standards for Excavations, 29 CFR, part 1926, Subpart P". This document was issued to better insure the safety of workmen entering trenches or excavations. It is mandated by this federal regulation that all excavations, whether they be utility trenches, basement excavation or footing excavations, be constructed in accordance with the new (OSHA) guidelines. It is our understanding that these regulations are being strictly enforced and if they are not closely followed, the owner and the contractor could be liable for substantial penalties. The contractor is solely responsible for designing and constructing stable, temporary excavations and should shore, slope, or bench the sides of the excavations as required to maintain stability of both the excavation sides and bottom. The contractor's responsible person, as defined in 29 CFR Part 1926, should evaluate the soil exposed in the excavations as part of the contractor's safety procedures. In no case should slope height, slope inclination, or excavation depth, including utility trench excavation depth, exceed those specified in local, state, and federal safety regulations. We are providing this information solely as a service to our client. G E T Solutions, Inc. is not assuming responsibility for construction site safety or the contractor's activities; such responsibility is not being implied and should not be inferred. 6.0 REPORT LIMITATIONS The recommendations submitted are based on the available soil information obtained by G E T Solutions, Inc. and the information supplied by the client for the proposed project. If there are any revisions to the plans for this project or if deviations from the subsurface conditions noted in this report are encountered during construction, G E T Solutions, Inc. should be notified immediately to determine if changes in the foundation recommendations are required. If G E T Solutions, Inc. is not retained to perform these functions, G E T Solutions, Inc. can not be responsible for the impact of those conditions on the geotechnical recommendations for the project. Solutlonskinc „, ;', f'Cil�i'`/E�•�� J Lair OCT g `? 2009 Final Report of Subsurface Investigation and Geotechnical Engineering Services - —I September 11, 2009 Camp Lejeune New Elementary School I` Camp Lejeune, North Carolina GET Project No: EC09-228G Revised: September 15, 2009 The Geotechnical Engineer warrants that the findings, recommendations, specifications or professional advice contained herein have been made in accordance with generally accepted professional geotechnical engineering practices in the local area. No other warranties are implied or expressed. After the plans and specifications are more complete the Geotechnical Engineer should be provided the opportunity to review the final design plans and specifications to assure our engineering recommendations have been properly incorporated into the design documents, in order that the earthwork and foundation recommendations may be properly interpreted and implemented. At that time, it may be necessary to submit supplementary recommendations. This report has been prepared for the exclusive use of Kimley-Horn and Associates, Inc. and their consultants for the specific application to the Camp Lejeune New Elementary School project located within the Camp Lejeune military installation in North Carolina. of 5oludonstlnc. it�+✓�.:/.. J 1✓�l/ CCT 0 n 2009 APPENDICES BORING LOCATION PLAN II BORING LOGS III GENERALIZED SOIL PROFILE IV SUMMARY OF CBR TEST DATA V DCP TEST DATA VI PAVEMENT DESIGN ANALYSIS VII SATURATED HYDRAULIC CONDUCTIVITY TEST RESULTS VIII CLASSIFICATION SYSTEM FOR SOIL EXPLORATION RE-c;;tlf�tl.D OCT 0 9 2009 BY: APPENDIX I BORING LOCATION PLAN n a \z/ !J E O O L{�tf i to \ t OCT 0 n. 2-009 BY: APPENDIX II BORING LOGS GETPROJECT: Camp LeJeune Family Housing Feasibility Study I V V CLIENT: Kimley-Horn and Associates Inc. 1BY. J PROJECT LOCATION: Camp LeJeune, North Carolina PROJECT NO.: ECOS-321G BORING LOCATION: See Attached Boring Location Plan SURFACE ELEVATION: 19' MSL BORING LOG DRILLER: Fishburne Drilling LOGGED BY: P. Lankford, EIT DRILLING METHOD: Mud Rotary (wash) DATE: 10-7-08 B-1 DEPTH TO WATER -INITIAL*: ¢ 11' AFTER 24 HOURS: -7 CAVING> L. o > W v o E `o. `m o— Description n c7 a o E Z 1n �-' E g N a i5 E; N - 3 1O in n m Zv o u TEST RESULTS Plastic Limit H Liquid Limit Moisture Content - • N-Value - P� 10 20 30 40 50 60 70 0 0 4-inches Topsoil i .... --- 2 0 : : : : : Tan, moist, Silty fine SAND (SM), very loose to medium dense Mottled Gray -Reddish Tan from 2-feet —_— 2 24 SS 9 17 15 9 . .. .. ..... .. .... ...... .. 7 7 — — z 9 2 .. '...: ..:... :. .. :..:.. 6 Mottled Gray -Reddish Tan, moist, Silty Clayey fine SAND (SC-SM), very loose' _' - 4 14 SS 2 2 10 — 22 :...:...:...:...:... . ...... Mottled Gray -Reddish Tan, moist to wet, Silty fine SAND (SM), medium dense :..:: :!i:: 5 15 SS w tz 13 — 10 Wet from 11-feet — _0 4 8 '.... ....: .,:.., 13 Mottled Gray -Reddish Tan, wet, poorly graded fine to medium SAND (SP) to poorly graded fine to medium SAND SP-SM with silt, loose Y 9 ( ) t. .t t! �, r --- 6 16 SS 3 9 is CIS ,; 7 ... :...:...:...'..,,:,..:,..:... — 0 B 18 Light Gray, wet, Silty fine SAND (SM), medium dense --- 7 18 SS 4 s 7 7 12 12 — - - — — 20 — --- .s 23 Mottled Gray -Reddish Tan, wet, Fat CLAY (CH) with trace coarse sand, stiff 8 20 SS 3 4 4 — 25 s Boring terminated at 25 ft. 0 30 — 10 is 35 0 Notes: SS = Split Spoon Sample ST = Shelby Tubu Sample HA = Hand Auger Sample BS = Bulk Sample PAGE 1 of 1 Standard Penebation Tests were performed in the field in general accordance with ASTM D 1586. I1tA.i�x....0 yr xi.t. OCT 0 ? 2009 GET PROJECT: Camp LeJeune Family Housing Feasibility Study Imo. CLIENT: KimleV-Horn and Associates, Inc. - PROJECT LOCATION: Camp LeJeune, North Carolina PROJECT NO.: EC08-321G BORING LOCATION: See Attached Boring Location Plan SURFACE ELEVATION: 21.5' MSL BORING LOG DRILLER: Fishburne Drilling LOGGED BY: P. Lankford, EIT DRILLING METHOD: Mud Rotary(wash) DATE: 10-7-08 B-2 DEPTH TO WATER -INITIAL": g 11' AFTER 24 HOURS: - CAVIi t- c w n v E a m Description a 12m n o Z In �- > v In m °- Q m t- In 3 tO m a > z o v e TEST RESULTS Plastic Limit F-I Liquid Limit Moisture Content- • -Value 10 20 30 40 50 60 70 10 - 0 0 6-inches Topsoil t iiiii ..... 1 24 SS 2 3 2 .:...:...:...:...:...: :........ ........ ......... — 20 — 5 — 0.4 Mottled Brown -Tan, moist, Silty fine SAND (SM), loose Tan from 2-feet — 3 2 24 SS a 8 :_.:.... ... .... — — i l... 6 13 :.... ... ..:.. :... g Reddish Tan, moist, Clayey fine SAND (SC) with silt, medium dense":".' 3 20 SS e 15 2Gray, 10 7 . _ 6:: moist, Silty fine SAND (SM), loose .... 4 18 Ss s — - — 10 16 --:'--":"--':'- Mottled Tan -Reddish Tan, moist to wet, poorly graded fine to 8't+:,i� medium SAND(SP) to poorly graded fine to medium SAND(SP-SM):''''" with silt and clay, medium dense���c;.',:--- ...... 5 12 SS 5 g s-- 10 10 Wet from 11-feet /'. F;r� ........ ... .. .. .. ............ ' — Light Gray from 13 feet;;`:;;. a-' .:... 6 12 SS 615 11 ...:...:...:...:...:...:... a::[r 6 — Gray, wet, Sandy Fat CLAY (CH), stiff 7 14 SS g 9 16 . .: ...: .. .:... :. :.. ..... — — — 20 0 _ — 14-- — 23 Light Gray, wet, Clayey fine SAND (SC) with silt, medium dense / 8 24 SS 2 25 1'. a Boring terminated at 25 ft. — s. 30 10 .. .. :...:...: .. .:...:........... — 10 .. .. .... .................... .. .. — 35 5 -- Notes: SS = Split Spoon Sample ST = Shelby Tube Sample HA = Hand Apgar Sample BS = Bulk Sample P PAGE 1 of 1 Standard Pene[rarion Tess were performed in the field in general accordance wflh AS TM D 1586, Symbol Description Strata symbols E] Topsoil OCT 0 ?��9 BY: ffn Silty Clayey Sand Silty Sand ,p;:,:,: Poorly graded Sand 6 ,' I: . with Silt jFat Clay /= Clayey a Sand Misc. Symbols Q Water table during drilling Notes: 1. Exploratory borings were drilled on 10-7-08 using a 4-inch diameter continuous flight power auger. 2. No free water was encountered at the time of drilling or when re -checked the following day. 3. Boring locations were taped from existing features and elevations extrapolated from the final design schematic plan. 4. These logs are subject to the limitations, conclusions, and recommendations in this report. 5. Results of tests conducted on samples -recovered are reported on the logs. OCT 0"' ?009 GETPROJECT: Camp LeJeune New Elementary School I ., CLIENT: Kimley-Horn & Associates Inc. -'-"—' PROJECT LOCATION: Camp LeJeune, North Carolina PROJECT NO.: EC09-228G c„,:„n.:,.,.c•,�t,r,•rM,:.��,»m•. BORING LOCATION: See Attached Boring Location Plan SURFACE ELEVATION: 21.5' MSL BORING LOG DRILLER: G E T Solutions, Inc. LOGGED BY: P. Lankford, EIT DRILLING METHOD: Mud Rotary(Wash) DATE: 9-4-09 B-1 3 DEPTH TO WATER -INITIAL': k 14' AFTER 24 HOURS: T- CAVING> .C. c ,� 0, Ht.- d N N m ut= v o O TEST RESULTS Plastic Limit H Liquid Limit > w m Description n m o- o E o. > o. N 3 1O w m o E o w in N rn I- m a z Moisture Content - • N-Value - E= 10 20 30 40 50 60 70 0 0 7 inches of TOPSOIL, t o'd.r 1 — 20 — 1 22 SS 2 8.4 .... Tan, moist, Clayey SAND (SC) with silt, very loose — 2 Tan, moist, Silty fine SAND (SM), loose 2 2 2 . '...... :... .. 2 24 SS 3 5 .._..: -- — Mottled Gray -Reddish Tan from 4 feet _ 3 _ 22 _ SS a 3 6 .I ...:...:...: ...:...:...:... ._ ..'....:...'._ .:...:.. :... — is = 6 Mottled Light Tan -Reddish Tan, moist to wet, poorly graded fine to i 10 _ medium SAND (SP) to poorly graded fine to medium SAND (SP SM) f 4 18 SS 13 23 _ with silt, medium dense r'` ` �' 13 _ _ _ 10 — With Clay from 8 to 10 feet v 5 24 SS 14 24 .......... ... :... 10 Tan from 10 feet 0 11 ` i — — — 10 .ccu. .i,. Fi. 6 20 SS 9 9 17 :. _ l ..:...:...:...: 4 Reddish Tan from 13 feet - Wet from 14 feet .... 13. i.' ` c i :;:: 1: — 7 — 12 — SS _ s 10 T7 .......... .. ............ - — " - - . . . . — ' - 15 !9;rr� 12 ........................ — _ — 518 — .r i.F r, i::�i .. ..:...: .. .. ........ ... ..... ....... .. .. ..... .. .. .. ... ..... — _ (r Gray -Tan, wet, Silty fine SAND (SM), loose 4 — 8 20 SS 4 8 20 3 0 -- 23 __— 9 — Gray -Tan, wet, poorly graded fine to medium SAND (SP) to poorly I 3 graded fine to medium SAND (SP-SM) with silt, loose �; g 18 SS e 7 25 .._. Boring terminated at 25 ft. — 8 s 30 — l0 — 35_ Notes: SS = Split Spoon Sample ST = Shelby Tube Sample HA = Hand Auger Sample BS = Bulk Sample PAGE 1 of 1 Standard Penetration Tests were perhonned in the field in general accordance will, ASTM D 1586. U L 1 V ' LUu ) GET PROJECT: Camp LeJeune New Elementary School I CLIENT: Kimley-Horn & Associates Inc. ICZ'V• ,., —"" PROJECT LOCATION: Camp LeJeune, North Carolina PROJECT NO.: EC09-228GJ cro ne su.c�w ,:quo rx�,y BORING LOCATION: See Attached Boring Location Plan SURFACE ELEVATION: 22.5' MSL BORING LOG DRILLER: G E T Solutions, Inc. LOGGED BY: P. Lankford, EIT DRILLING METHOD: Mud Rotary(Wash) DATE: 9-3-09 B-14 DEPTH TO WATER - INITIAL': s 15' AFTER 24 HOURS: T- CAVING> C. > rj w o. v v v o Eo o w v �, Description o. n o E z cn �-' E° E E M o m o. z v TEST RESULTS Plastic Limit H Liquid Limit Moisture Content- • N-Value- 10 20 30 40 50 60 70 0 0 9 inches of TOPSOIL Tan -Gray, moist, poorly graded fine to medium SAND (SP-SM) with silt to Silty fine SAND(SM), very loose to medium dense _ _ _ 3 — — 20 :;;;; z — 2 22 SS 2 5 Mottled Gray -Reddish Tan from 4feet 4 —::'--- ::! a-- s ii 3 24 SS B 10 ...:._:._ :. ..:........... ..... .. .. ......... .... — ..... _ _ _ 10 — 2 6 18 SS 8 13 ... 23 . — 10 Reddish Tan -Tan from 10 feet 1] 19 ...:... :...1.. .:.. 6 22 SS e 1p t0 to - _ 4 :r..--- i 18 13 Mottled Tan -Reddish Tan, moist to wet, poorly graded fine to medium SAND SP to poorlygraded fine to medium SAND SP SM with silt, with trace Clay, medium dense ( ).c�;-—- 7 16 SS 11 - Wet from 15 feet .,..l: t?' , 6 Gray -Tan, wet, Clayey SAND (SC) with silt, loose // 8 20 SS 4 5 5 10 — — 20--- -- _0_ — _ 9 ..... :...: ..:... — 26 23 Light Gray, wet, poorly graded fine to medium SAND (SP-SM) with silt to Silty fine SAND (SM), with Clay, loose ..... 9 24 SS 3 s 6 Boring terminated at 25 ft. — 6 ... .:...: ...:...:. .. :.. .:...:. .. so— 10 — 3`L Notes: SS = Split Spoon Sample ST = Shelby Tube Sample HA = Hand Auger Sample BS = Bulk Sample PAGE 1 of 1 Standard Penetration Tests were performed in the field in general accordance with ASTM D 1586. GET PROJECT: Camp LeJeune New Elementary School I O C T 0 0 N139 CLIENT: Kimley-Horn & Associates, Inc. c,�x.«-xlc.nm,mm,a.rnn�x BORING LOG B-15 PROJECT LOCATION: Camp LeJeune, North Carolina PR&JE6T'Nd—EC09-22B& BORING LOCATION: See Attached Boring Location Plan SURFACE ELEVATION: 21.5' MSL DRILLER: G E T Solutions, Inc. LOGGED BY: P. Lankford, EIT DRILLING METHOD: Mud Rotary(Wash) DATE: 9-3-09 DEPTH TO WATER -INITIAL`: a 15' AFTER 24 HOURS: -7- CAVIl - o r w J` o E J o— Description . C m EZ rn v� E 0 to N E °' cn t- N o m o. 1 j z o u e TEST RESULTS Plastic Limit H Liquid Limit Moisture Content -• N-Value - P� 10 20 30 40 50 60 70 — 20 _ _ _ 15 0 D 5 7 17 23 15 n 9 B"' 10. 9 inches of TOPSOIL 1 2 .".' '.'."' .. .: ... :. .. .. .: .. .. ..:... .:._:... ..:. . :... :. ..: ...:... :...:.. .:... .. ..:. ..: ...:... :. .. :.. .:.. .:... ...:.. .: ...:...1 .. .: .. .:... :. .. Tan, moist, poorly graded fine to medium SAND (SP-SM) with silt to Silty fine SAND(SM), very loose to medium dense With trace Clay from 2 feet Mottled Gray -Reddish Tan from 4.5 feet With Clay lenses from 10 feet — --- 2 20 SS z 2 3 — 2 s 3 24 SS 3 3 4 6 ... Ti:: 4 24 SS 5 y 11 5 22 SS 6 is 16 — 10 4 ��;;� !iii! _ 6 _ 24 _ SS i e 9 10liii: --- 13 Mottled Tan -Reddish Tan, moist to wet, poorly graded fine to medium SAND (SP) to poorly graded fine to medium SAND (SP-SM):11 with silt, medium dense Wet from 15 feet�l 18 Gray -Tan, wet, Silty fine SAND (SM), loose ,'.,: .-.. .. r 7 8 18 24 SS SS e 9 g a 5 4 - — s — — 0 — 6 — — 20 9 Mottled Gray -Reddish Tan, wet, Clayey SAND (SC) with silt, loose ( Y'. 9 20 SS a 4 _ 25 — Boring terminated at 25 ft. 6 10 10 30 — 35 Notes: SS = Splll Spoon Sample ST = Shelby Tube Semple HA = Hsnd Aug., Sample BS = Bulk Sample PAGE 1 of 1 Standard Penelmlion Tests were performed in the field in General accordance with ASTM D 1586. GETPROJECT: Camp LeJeune New Elementary School I v y ' - �V v CLIENT: KimleY-Horn & Associates, Inc. 0Y: -_1 —"' BORING LOG B-1 G PROJECT LOCATION: Camp LeJeune, North Carolina PROJECT NO.: EC09-228G BORING LOCATION: See Attached Boring Location Plan SURFACE ELEVATION: 20.5' MSL DRILLER: G E T Solutions, Inc. LOGGED BY: P. Lankford, EIT DRILLING METHOD: Mud Rotary(Wash) DATE: 9-3-09 DEPTH TO WATER - INITIAL*: g 14' AFTER 24 HOURS: - CAVII S. o z > Au: t N aai v o E L^ w w o— Description m EZ to v E rn ' w E" N f- o m a w j z o u o TEST RESULTS Plastic Limit H Liquid Limit Moisture Content - e N-Value - F%, 10 20 30 40 50 60 70 20 0 0 3 9 9 18 t8 11 9 — 8 inches of TOPSOIL 0. 7 ,.... i''. _ 1 _ 22 _ SS 2 2 ........ ....: ... "---'--- ........................... "'------- ...:...:...: :...:...:._:._:_.:.. .'.._....,......._.._.. ...: ... :.... . " _..:,..:...1 ..1 ...:...:...:... ..... ....... .. .. .. ... .. .... ..... — — —_ — Tan, moist, Silty fine SAND (SM), very loose to loose Mottled Gray -Reddish Tan from 4feet With Clay from 6 feet 2 4 2 5 ,!!; .;... 3 24 SS s 4 5 '.:;--- ..::. :: 4 24 SS a s — — — — 1a Mottled Tan -Reddish Tan, moist, poorly graded fine to medium SAND SP to poorly graded fine to medium SAND SP-SM with silt, Y9 ( ) medium dense ... �'i,;:;' .1:1:'I'.--- ::<< .1 c ia;rr S 6 24 24 SS SS e tfi '�1 7 11 12 — ''—° 4 — — — — - 13 Gray -Tan, moist to wet, poorly graded fine to medium SAND (SP ' SM) with silt to Silty fine SAND (SM), with Clay, medium dense Wet from 14 feet !::!! 7 -- t7 SS s fi it 5 — 0 - _ -5 -10 — -15 ..... — — — fi — B 24 SS a......._......:_._.._.. 5 20 -- 23 Light Gray, wet, poorly graded fine to medium SAND (SP) to poorly graded fine to medium SAND (SP-SM) with silt, with Clay, loose ! f ;!,:; F; --- 9 20 SS 5 4 4 25 Boring terminated at 25 ft. _ _ t0 30 — Notes: SS = Split Spoon Sample ST - Shelby Tube Sample HA = Hand Auger Sample SS = Bulk Sample PAGE 1 of 1 Standard Penetration Tests were per(ormod in (he /field in general accordance with ASTM D 1586. GETPROJECT: Camp LeJeune New Elementary School CLIENT: Kimley-Horn & Associates, Inc. r PROJECT LOCATION: Camp LeJeune North Carolina PROJECT NO.: EC09-228G cr, h r 1•r.•, r ,xmm. mn,�y BORING LOCATION: See Attached Boring Location Plan SURFACE ELEVATION: 22' MSL BORING LOG DRILLER: GET Solutions, Inc. LOGGED BY: P. Lankford, EIT DRILLING METHOD: Mud Rotary(Wash) DATE: 9-3-09 B-17 DEPTH TO WATER • INITIAL': 8 15' AFTER 24 HOURS: T- CAVING> S. TEST RESULTS Plastic Limit H Liquid Limit >; n m v n m Description o. n o E o. > E E o # w v o E o z N F- m a z Moisture Content -cii • e IN -Value - 10 20 30 40 50 60 70 o o _ 9 inches of TOPSOIL 1 _ _ _ 1 — , 0.81 iiiii 1 24 SS 2 4 .. .... ..... — zo Gray, moist, Silty fine SAND (SM) with trace organics, very loose 3 — 2 2 _ Tan, moist, Silty fine SAND (SM), loose to medium dense -- 2 22 SS n 6 4 4 3 24 SS 7 12 ..'. ..:... :..... ..:...:... 2 Mottled Gray -Reddish Tan from 6 feet' - ts 4 20 SS 9 18 — 8 Light Tan -Tan, moist to wet, poorly graded fine to medium SAND 9 y9.. e — SP to poorly graded fine to medium SAND SP-SM with silt, ( ) P Y9 ( ) iF.., ,;� 5 22 SS In 23 ....___.... ,..._.. — t0 medium dense[',: I 14 6 24 -- SS i14 Mottled Tan -Reddish Tan from 10 feet ln:ii� 25 :...:...:........ .. — 13 — 4 :.. .: ...: — Gray from 13 feet ..... °;;., a 7 20 SS 10 19 4.7 •..:.. :...:...:... Wet from 15 feet Yi:ru — — 18 :'i:::— 3 Gray -Tan, wet, poorly graded fine to medium SAND (SP-SM) with sit s _ 6 — to Silty fine SAND ISM), loose 8 20 SS 6 0 10 _ 20 0 Tan, wet, poorly graded fine to medium SAND (SP) to poorly graded :':': 4 fine to medium SAND (SP-SM) with silt, loose 4: ,1. 9 20 SS 9 — zs ... e Boring terminated at 25 ft. 5 to _ o .. :... ..... v yf� Ai ' r is - OC1 0 ppi. 9o(�J.'...' ..:... . 35 - 5 Notes: SS = Split Spoon Sample ST = Shelby Tube Sample HA = Hand Auger Sample BS = Bulk Sample P ( PI PC PAGE 1 of 1 Standard Penetration Tests were performed in the field m general accordance with ASTM D 1586. GET PROJECT: Camp LeJeune New Elementary School CLIENT: Kimley-Horn & Associates, Inc. PROJECT LOCATION: Camp LeJeune North Carolina PROJECT NO.: EC09-228G c.,, r ooi•o-min-t„c BORING LOCATION: See Attached Boring Location Plan SURFACE ELEVATION: 20.5' MSL BORING LOG DRILLER: G E T Solutions, Inc. LOGGED BY: P. Lankford, EIT DRILLING METHOD: Mud Rotary(Wash) DATE: 9-4-09 B-1 S DEPTH TO WATER - INITIAL': >z 14' AFTER 24 HOURS: -T- CAVING> L o z s y L^ m w- ? o TEST RESULTS Plastic Limit H Liquid Limit g > fi v g'w v v Description E E g 0 v> L '6 o E o `- s) z �-- to n n Moisture Content - • W e N-Value - Mm 1 22 SS ; 1 2 :...;.... _.:...... :...:.,. Tan, moist, Silty fine SAND ISM). very loose to loose 1 I 1 iiiii ... 2 24 SS 2 3 ..,.. .: .. .. .. .. .. .. .. ........ 2 :...'... Mottled Gray -Reddish Tan from 4 feet .I...' . ......... .. ... z ;.... .::.: 3 20 SS a 5 ..........._.._....._..... 4 '..,.:...:,..:...:.. :. .. 3 4 24 SS 3 6 ����--- Motted Gray-Reddishpoorly 9 :r1. o : iediumlSAND SP 000rl graded medium SANDI SP SM;�."��� ( ) poorly ( )� ' 20 SS 14 22 with medium dense ..... ,:,.,,.--- 20 - - 1'3 Clay l With Clay lenses from 10 feet ?:iis : 6 20 SS 13 23 ... ..... _.. .. .:... 10 Tan from 13 feet ------- Wet from 14 feet ..... :'I r r 1 7 20 SS 7 7 14 . . — — 4 Y r.rc ............... ccc r. 18-:'::::--- 2 Gray -Tan, wet, Silty fine SAND (SM), loose iii ii 3 8 20 SS 3 6 .:...:...:...:_.:. .:....... 4 —23 Light Gray, wet, poorly graded fine to medium SAND (SP) to poorly '`'i!,i e :. :... :... graded fine to medium SAND (SP-SM) with silt, medium dense, ;,: ,, F; g 20 SS a 16 ....... ...:... m Boring terminated at 25 fit. 11 —A Y"�l. !, OCT C 9 22)0t Notes: - n n n SS = Splil Spoon Sample ST = Shelby Tube Sample HA = Hand A,,ger Sample BS = Bulk Sample 'Th. ;n 1i.1 ninnnrl,unmr mnrllnn ,n_ nr 1— ,ml(rnw,a of th. e _ ,nduom. lo�.al ,mnu c ,Armnm M I -- PAGE 1 of 1 Standard Penetration Tests wero performed in the field in general accordance with ASTM D 1586. SSA C ;',. N v 11;1J GET PROJECT: Camp LeJeune New Elementary School I 0 C T - 0 ZUUJ CLIENT: Kimley-Horn & Associates, Inc. 1 �-- BORING LOG B-19 u<n PROJECT LOCATION: Camp LeJeune, North Carolina I—PROJECT` NO. EC09-228G BORING LOCATION: See Attached Boring Location Plan SURFACE ELEVATION: 20.5' MSL DRILLER: G E T Solutions, Inc. LOGGED BY: P. Lankford, EIT DRILLING METHOD: Mud Rotary(Wash) DATE: 9-3-09 DEPTH TO WATER - INITIAL': -V 14' AFTER 24 HOURS: T- CAVING> C. asr > > w ra v m w o E oa v m w o Description n U E ra Z E o n E n~ o m n Z TEST RESULTS Plastic Limit H Liquid Limit Moisture Content - • N-Value - P/ 10 20 30 40 50 60 70 20 0 o 4 6 10 15 23 21 19 15 11 45 2 8 inches of TOPSOIL 6r _ 1 _ 22 _ SS _ ` z 2 F~� ........ .. .. ..... ... .. :...:...:...:...:... - - . -. . ........ _.........I_.....:_. "' -"'-""--"-' . ....... .. .. .. ... .. .. .. ..... ...:. ..: .. .: ...:. ..:... :. .. .. .. .. .... .. .. — — — —` Gray -Tan, moist, Silty fine SAND (SM), very loose — 2 Tan, moist, Clayey SAND (SC) with silt, loose Mottled Gray -Reddish Tan from 4 feet � �� — 2 — 18 — SS 2 3 3 3 24 SS 3 4 6 Mottled Gray -Reddish Tan, moist, Silty fine SAND (SM), medium dense 4 22 SS 7 6 9 10 — 5 24 SS 9 iZ 11 — 10 4 Light Tan -Tan, moist to wet, poorly graded fine to medium SAND (SP) to poorly graded fine to medium SAND (SP-SM) with silt, medium dense Mottled Gray -Reddish Tan with trace Clay from 13 feet - ' Wet from 14 feel I '''i"1'. 'a: r. ...�/• 1. 11- ... f r.i 1:: r, r, Lmcu 6 20 SS 1e 11 13 — — — 7 — 20 — SS — 10 6 — - 15 — _ Light Gray, wet, poorly graded fine to medium SAND (SP-SM) with silt to Silty fine SAND (SM), with trace Clay, medium dense 8 20 SS 5 7 8 s 20 .. .. 9 24 SS e 5 5 — 25 5 Boring terminated at 25 ft. — 10 -10 30 — 35 5 Notes: SS = Split spoon sample ST = Shelby Tube Sample HA = Hand Auger Sample BS = Bulk Sample PAGE 1 of 1 Standard Penetration Tests were performed in the field in general accordance with ASTM D 1586, Uu I UV cuuj GET PROJECT: Camp LeJeune New Elementary School CLIENT: Kimley-Horn & Associates, Inc. IRV• * ��..��ttr�..,,■■ — -- PROJECT LOCATION: Camp LeJeune, North Carolina PROJECT NO.: EC09-228G e. ,,,.Puy. Homy BORING LOCATION: See Attached Boring Location Plan SURFACE ELEVATION: 21' MSL BORING LOG DRILLER: G E T Solutions, Inc. LOGGED BY: P. Lankford, EIT DRILLING METHOD: Mud Rotary(Wash) DATE: 9-3-09 B-20 DEPTH TO WATER -INITIAL*: S 15' AFTER 24 HOURS: -7- CAVING> S- `o L N L v N— m J oo TEST RESULTS Plastic Limit H Liquid Limit _m > n m m n d v Description o- a o E o-'o E a w E 3 tO o v a w w o E o Z N N m o- z Moisture Content - • rn a N-Value - 1= 10 20 30 40 50 60 70 a ° _ 8 inches of TOPSOIL _ ,... _ _ _ 1 20 0.7 iiii: 1 22 SS 2 3 :...:...:...:...:........... Tan, moist, Silty fine SAND (SM), very loose to loose Mottled Gray -Reddish Tan with trace Clay from 2 feet ::::: 2 _ z — ..... ..... 2 24 SS 4 8 5 4 Mottled Gray -Reddish Tan, moist, Clayey SAND (SC), loose f 3 _ 3 22 SS 5 9 15 — Tan, moist, poorly graded fine to medium SAND (SP) to poorly y _ graded fine to medium SAND (SP-SM) with silt, with trace Clay, �r. n: '.._ 4 20 SS 11 20 medium dense 1:a r 12 Light Tan from 8 feet anii ° ° — i 1'fii' 5 24 SS i3 22 ..:...:............... Tan from 10 feet a 1.' ' " r [:r�. 10 6 20 SS y 17 :... :. .. :. ..:...: .. : .. e[t' — 4 Light Gray -Tan, moist to wet, poorly graded fine to medium SAND r":11 7 _ (SP) to poorly graded fine to medium SAND (SP-SM) with sill. with �' 7 24 SS 9 16 — 15 `'- Clay lenses, loose to medium dense 10 . ......... 5 Wet from 15 feet titl; — 3 20 4 --- 2 Light Gray -Tan, wet, poorly graded fine to medium SAND (SP-SM)3 5 _ with silt to Silty fine SAND with trace Clay, loose (SM), ::: ! `� 20 SS 4 9 " 25 4 Boring terminated at 25 It, 5 6 — 0 -10 10 35 -15 Notes: SS = Split Spoon Sample ST = Shelby Tube Sample HA = Hand Auger Sample BS = Bulk Sample *ThP initial orouridwat,r readinomay nbf be indicative of the Ipfic nrouodwater fever PAGE 1 o/ 1 Standard Penetration Tests were performed in the field in general accordance with ASTM 0 1586, ✓JL3 GETPROJECT: Camp LeJeune New Elementary School � CLIENT: Kimley-Horn & Associates, Inc. IBY:---- �" — PROJECT LOCATION: Camp LeJeune, North Carolina PROJECT NO.: EC09-228G ca h.xm •c.n�.,»n�ml. mn„e BORING LOCATION: See Attached Boring Location Plan SURFACE ELEVATION: 2V MSL BORING LOG DRILLER: G E T Solutions, Inc. LOGGED BY: P. Lankford EIT DRILLING METHOD: Mud Rotary(Wash) DATE: 9-4-09 B-21 DEPTH TO WATER - INITIAL`: S 12.5' AFTER 24 HOURS: CAVING> -C. o z m w m o TEST RESULTS Plastic Limit H Liquid Limit > V m w v v Description E Z E o E> o u an w o E o N N N m o. Z\ Moisture Content -• O N-Value- Mm 10 20 30 40 50 60 70 0 0 9 inches of TOPSOIL _ _ _ 1 20 ..... 1 24 SS 3 Tan, Clayey SAND loose moist, (SC) with silt, very 2 2 Mottled Tan -Reddish Tan, moist, Silty fine SAND (SM), with trace 3 Clay, loose `'iiii 2 2a Ss 3 6 .'....:....................... — 5 Mottled Gray -Reddish Tan, moist, Clayey SAND (SC) with silt a _ medium dense 3 22 SS 7 11 15 2 .. 8 '....... :...:...:...:.. _ 7 an, moist to wet, poor) graded fine to medium SAND SP to oors'r �'" _ graded fine to medium SAND (SP-SM) with silt, medium dense ?.cif!; 4 24 SS 12 20-'--- 14 10 .:...:...:...:...:... 10 18 Light Tan -Tan from 10 feel .`.'.r 1.1 10Mottled — aici 6 24 SS e y 17 10 i7 — 4 -- Wet from 12.5 feet 7 24 SS s _ Light Gray with Clay from 13.5 feet;' 9 Y Y r. 1310. ._........ _............ 15 — .nit r.r[r 6 10 .: ...:...:... :...:.. .:.. I(I'11' - r,t,tl;i l P.rl 8 24 SS 5 7 12 :...:...:...: 6 20 9'.pij' 7 ......... .. .. .. ..... .. ..... .. --- 23 }'--- Light Gray, wet, Silty fine SAND (SM), loose 44 — Ir 9 18 SS 8 25 5 Boring terminated at 25 ft. 6 — q ....:...:...:...:...:...:...:... 30 10 10 35 15 Notes: SS = Split Spoon Sample ST = Shelby Tube Sample HA = Hand Aug., Sample BS = Bulk Sample PAGE 1 of 1 Standard Penetration Tests were performed in the field in general accordance with ASTM D 1586. GET PROJECT: Camp LeJeune New Elementary School I OCT 0 0 009 CLIENT: Kimley-Horn & Associates, Inc. - —'- PROJECT LOCATION: Camp LeJeune, North Carolina 5P96JECT'NO—EC09—h8G cav,mad•o-am.mmnr-r m, BORING LOCATION: See Attached Boring Location Plan SURFACE ELEVATION: 22' MSL BORING LOG DRILLER: G E T Solutions, Inc. LOGGED BY: P. Lankford, EIT DRILLINGMETHOD: MudRolary(Wash) DATE: 9-4-09 B-22 DEPTH TO WATER -INITIAL': a 15' AFTER 24 HOURS: T- CAVING> f 0 o TEST RESULTS Plastic Limit H Liquid Limit > Description oa d E 0 Z Inn Moisture Content -• N-Value- FJJjjlQ 10 20 30 40 50 60 70 9 inches of TOPSOIL ,... 2 : — ^.Ev 1 20 Ss ; 2 — Tan, moist, Silty fine SAND (SM), very loose to loose 2 ;;;;; z With Clay from 2feet 2 24 SS 2 5 :...:. .. :. ..:.. .:.. :... 3 5 Mottled Gray -Reddish Tan, moist, Clayey SAND (SC) with silt, loose... 3 — 3 24 SS 5 6 8 _ is an, moist to wet, poorly graded fine to medium SAND (SP) to poorfi r:,ii . y - - graded fine to medium SAND (SP-SM) with silt, loose to medium .a;1: ( f : 't 4 24 SS 11 20 — dense o: rJ. 14 5 20 SS is 24 ..:.......:........... — 106 24 SS 17 10 —.— r 1'A 11 4 Gray -Tan with Clay lenses from 13 to 18 feet Y r, ti. �r'� r:�.. � — jrTtP. aau 7 20 SS id 19 :...:...:...:...:...:... s10 Wet from 15 feet rr. r.';--- J y:ru ..:................... 5 i — — Gray from 18 feet 1l.Y.ttl ;, :...:...:. ..:.. .:.. — — — 3 8 24 SS ,4j 8 . . ........... ................ 6 20 5 a:mrt: ..... .........:................... It--- --- 23.{. Light Gray, wet, poorly graded fine to medium SAND (SP-SM) with _ silt to Silty fine SAND ISM), medium dense �' g 20 55 7 12 25 7 Boring terminated at 25 ft. 8 — ....:...:...:...:...:...:...:... 5 —w a0 10 35 5 Notes: SS = Split Spoon Sample ST = Shelby Tube Sample HA = Hand Auger Sample BS = Bulk Sample PAGE 1 of 1 Standard Penetration Tests were performed in the field in general accordance with ASTM D 1586. GET BORING LOG CBR-2 PROJECT: Camp LeJeune Family Housing Feasibility Study I II CLIENT: Kimley-Horn and Associates, Inc. PROJECT LOCATION: Camp LeJeune, North Carolina PROJECT NO.: EC08-321G BORING LOCATION: See Attached Boring Location Plan SURFACE ELEVATION: 21.5' MSL DRILLER: J. Meads LOGGED BY: P. Lankford, EIT DRILLING METHOD: Hand Auger DATE: 9-26-09 DEPTH TO WATER - INITIAL': $ AFTER 24 HOURS: T- CAVING> L. > w 2 v m E v v 0 Description C� o E Z 1n 1 w 0 E a m E N~ 3 o m o. Z\ o TEST RESULTS Plastic Limit H Liquid Limit Moisture Content - • N-Value - 10 20 30 40 50 60 70 — 20 0 0 BS 33.t 8-inches of TOPSOIL 't _ - .............................. ....:...:...:...:...�...:...:... .. ..: .. .: .. .: .. .:. ..:. ..:...:. .. I...1 .. .1,..:.. :... 0.7 Tan -Gray, moist, Silty fine SAND ISM) to Silty, Clayey SAND (SC- Mottled Gray -Reddish Tan from 5-feet.. — z 5 u --- - _ — to - Mottled Tan -Reddish Tan, moist, Silty fine SAND ISM) 8.5 Tan, moist, poorly graded fine to medium SAND (SP) to poorly- raded fine to medium SAND SP-SM with silt" 10 _ a Boring terminated at 10 fL — — 5 5 — 6 — — 0 20 9 25 — 5 10 -10 30 — 35 Notes: SS = Split Spoon Sample ST = Shelby Tuhe Sample HA = Hand Auger Sample BS = Bulk Sample PAGE 1 of 1 Standard Penetration Tests were performed in the field in general accordance with ASTM D 1586. I<Lz r`V V --ZL3 GETPROJECT: Camp LeJeune New Elementary School I OCT 0 0 2009 CLIENT: Kimley-Horn & Associates, Inc. cm, i •c,� r •.�-,}.n„r BORING LOG CBR-5 PROJECT LOCATION: Camp LeJeune, North Carolina PR(YECT-NOE=EC09-228Gt BORING LOCATION: See Attached Boring Location Plan SURFACE ELEVATION: 22.5' MSL DRILLER: G E T Solutions, Inc. LOGGED BY: P. Lankford, EIT DRILLING METHOD: Hand Auger DATE: 8-4-09 DEPTH TO WATER - INITIAL": & AFTER 24 HOURS: T, CAVING> -C 0, > r j w 0-y w w o E m m o Description c7 E Z rn E o N E N o y m a ju Z\ o TEST RESULTS Plastic Limit H Liquid Limit Moisture Content- • N-Value- P/J� 10 20 30 40 50 60 70 — — 20 0 0 BS HA HA HA 17 — t 6 inches of TOPSOIL 0� Tan, moist, poorly graded fine to medium SAND (SP-SM) with sill to Silty fine SAND ISM) rci v- r. T. ....:...:...:...:_.:_.:...:... _ .:...:...:...:...:...:...:... ....: ...: ... :... :. .. :... :...[... ....:...:...:...:...:...:...:... .. .. :. ..:.. .: ...:.. .: .. .:...:. .. — sch i 35 Light Tan, moist, poorly graded fine to medium SAND (SP) to poorly graded fine to medium SAND (SP-SM) with silt — s — — 8 Reddish Tan, moist, Silty fine SAND (SM) with Clay .. — - 10 — 10 a - Boring terminated at 10 11. 15 s 6 — 20 0 25 10 30 35 Notes: SS = Split Spoon Sample ST = Shelby Tube Sample HA = Hand Auger Sample BS = Bulk Sample PAGE 1 of 1 Standard Ponelntion Tests were perlonned in the /field m (general accordance with ASTM D 1586. R-�C,?: 5/Jv� OCT o 0 2000 GETPROJECT: Camp LeJeune New Elementary School CLIENT: Kimley-Horn &Associates, Inc. _. ,.. BORING LOG C BR-6 PROJECT LOCATION: Camp LeJeune, North Carolina PROJECT NO.: EC09-228G BORING LOCATION: See Attached Boring Location Plan SURFACE ELEVATION: 22.5' MSL DRILLER: G ET Solutions, Inc. LOGGED BY: P. Lankford, EIT DRILLING METHOD: Hand Auger DATE: 8-4-09 DEPTH TO WATER - INITIAL': 43- AFTER 24 HOURS: Jr CAVING> C. o r .� > N 0 g L w `o- w m v o E L Y o. m m m o= Description n n o E Z rn �- > E$ o. E 3 `O o v m o. m z o TEST RESULTS Plastic Limit t-i Liquid Limit Moisture Content -• N-Value - jJJJJjj 10 20 30 40 50 60 70 — 0 0 BS HA 10 inches of TOPSOIL Tan, moist, poorly graded fine to medium SAND (SP-SM) with silt to Silty fine SAND(SM) Reddish Tan from 4 feet '"`--"".... .... .. ..I...I...:. .. :. .. :...:.. .: ... .. .. :. ..:. ..:... :...:...:.. .:... ... .. .... .. .. ...: ...:.. .:.. .:... — 20 — — �g ;!!�! 2 s — 65 Tan, moist, poorly graded fine to medium SAND (SP) to poorly graded fine to medium SAND (SP-SM) with silt + t r' a!' 10 — 10 a Boring terminated at 10 R. - is — 0 6 — 20 25 10 30 — 35 Notes: SS = split Spoon Sample ST = Shelby Tube Sample HA = Hand Auger Sample BS = Bulk Sample PAGE 7 of 1 Slaodard Penetration Tests were performed in the field in ,general accordance with ASTM D 1586. GET A c Fsd.c� m. mn„x BORING LOG CBR-7 :Jt.I V V LUtIJ PROJECT: Camp LeJeune New Elementary School I CLIENT: Kimley-Horn & Associates, Inc. ITRV• PROJECT LOCATION: Camp LeJeune North Carolina PROJECT NO.: EC09-228G BORING LOCATION: See Attached Boring Location Plan SURFACE ELEVATION: 22' MSL DRILLER: G E T Solutions, Inc. LOGGED BY: P. Lankford, EIT DRILLING METHOD: Hand Auger DATE: 8-5-09 DEPTH TO WATER - INITIAL": Q AFTER 24 HOURS: C- CAVING> C. c m > y w L i n� d d o Eo L o. v v Description u o. A 2 m E o E Z N N y o- > E$ N W E �' E N y_ 3 1O o y> m a v > m z o O u y e TEST RESULTS Plastic Limit H Liquid Limit Moisture Content- • N-Value - 10 20 30 40 50 60 70 0 0 BS HA HA HA 24,8' _ zs — --- — is 10 12 inches of TOPSOIL ....;...:._:._:...:._:...:... _.:... .:...:_.: _. ............................... s. Tan, moist, poorly graded fine to medium SAND (SP-SM) with silt to Silty fine SAND(SM) s 3 Reddish Tan, moist, Clayey SAND (SC) with silt 4 Mottled Gray -Reddish Tan, moist, Lean CLAY (CL) �////////��J� z j Tan, moist, poorly graded fine to medium SAND (SP) to poorly 0 graded fine to medium SAND (SP-SM) with silt Reddish Tan from 8feet Tan from 9.5 feet 4.�i i i. .I:Gi � � f. 10 a Boring terminated at 10 ft. 15 s a — 5 .10 zo ss. 2s — 10 35 Notes: SS = Split Spoon Sample ST = Shelby Tube Sample HA = Hand Auger Sample BS = Bulk Sample ,l PAGE 1 of 1 Standard Penetration Tests were performed in the field m general accordance with ASTM D 1586. jq�� GET OCT 0 9 7009 PROJECT: Camp LeJeune New Elementary School CLIENT: Kimley-Horn & Associates, Inc. . BORING LOG CBR-S PROJECT LOCATION: Camp LeJeune, North Carolina �PROJECT'NO'—EC09-22BG BORING LOCATION: See Attached Boring Location Plan SURFACE ELEVATION: 21' MSL DRILLER: G E T Solutions, Inc. LOGGED BY: P. Lankford, EIT DRILLING METHOD: Hand Auger DATE: 8-5-09 DEPTH TO WATER - INITIAL": 4 AFTER 24 HOURS:- CAVING> _C_ o x i0 wo a n °' o �' Description p c�137 w E 6 W. Z E >o rn 0 �, E in ~ o m a 1p Z\ o TEST RESULTS Plastic Limit H Liquid Limit Moisture Content - • N-Value - Ej 10 20 30 40 50 60 70 0 a HA BS HA HA 14. 20 _ 15 — — 12 inches of TOPSOIL -.... .:...:...:... ..... .... .... .. .. .. ..... Reddish Tan, moist, Silty fine SAND (SM) With Clay from 3.5 feet L 5 hf ii' a: n: 2 5 4.5 Mottled Gray -Reddish Tan, moist, Lean CLAY (CL) Tan, moist, poorly graded fine to medium SAND (SP) to poorly graded fine to medium SAND (SP-SM)with silt�:--- Reddish Tan from 7.5 feet Tan from 9.5 feet- — 10 10 Boring terminated at 10 fL 5 6 — 20 9 .5 25 10 a5 30 10 35 Notes: SS = Split Spoon Sample ST = Shelby Tube Sample HA = Hand Auger Sample BS = Bulk Sample 'The ingiaterourldivaler reading may not no, indicativ� P lalic oroundwaterlevel PAGE 1 of 1 Standard Penetration Tests were perrooned in the Held in genaral accordance will, ASTM D 1586. nrT o 0 2009 GETPROJECT: --'— c.:�n=n•:•c.w�n:.,•,a•mmK BORING LOG C BR-9 Camp LeJeune New Elementary School CLIENT: Kimley-Horn & Associates. Inc. Li •----I PROJECT LOCATION: Camp LeJeune North Carolina PROJECT NO.: EC09-228G BORING LOCATION: See Attached Boring Location Plan SURFACE ELEVATION: 21' MSL DRILLER: G E T Solutions, Inc. LOGGED BY: P. Lankford, EIT DRILLING METHOD: Hand Auger DATE: 8-5-09 DEPTH TO WATER - INITIAL": S AFTER 24 HOURS: •7- CAVING> L. c ,� > w w w o E v o Description v E Z m E g N 0 E N­ o to o. j z oo u o TEST RESULTS Plastic Limit H Liquid Limit Moisture Content - • N-Value - 10 20 30 40 50 60 70 0 0 HABS HA HA HA 13 _ 20 _ _ 15 — — - o 0 .5 12 inches of TOPSOIL moist, poorly graded fine to medium SAND (SP-SM) with silt to Silty fine SAND (SM) ....: :... _ . . --——---- ._..................._:_.: _. ._.:...:...:...:...:_....:... ..:...:...:...:._:...:...:_. .. .. ... ......... _Tan, Reddish Tan, moist, Clayey SAND (SC) with silt 3 h'TT. Mottled Gray -Reddish Tan, moist, Lean CLAY (CL) 5.5 Tan,moist, poorly graded fine to medium SAND(SP)to poorly graded fine to medium SAND (SP-SM) with silt Reddish Tan from 8 feet`------- Tan from 9feel � z 5 j :.ti t '`r'' ltil {:`n; — 10 n Boring terminated at 10 fI, u s — zo 5................ 25 10 15 30 10 35 Notes: SS = Split Spoon Sample ST = Shelby Tube Sample HA = Hand Auger Sample BS = Bulk Sample PAGE 1 of 1 Standard Penetration Tests were performed in the Helder general accordance with ASTM D 1586. Jam, : �. .._.i:. GET BORING LOG BM P-1 PROJECT: Camp LeJeune New Elementary School I U t, I �J :1 Ut1 CLIENT: Kimley-Horn &Associates, Inc. �av• PROJECT LOCATION: Camp LeJeune, North Carolina PROJECT NO.: EC09-228G BORING LOCATION: See Attached Boring Location Plan SURFACE ELEVATION: 20.5' MSL DRILLER: G E T Solutions, Inc. LOGGED BY: P. Lankford, EIT DRILLING METHOD: Mud Rotary(Wash) DATE: 9-2-no DEPTH TO WATER - INITIAL': $ AFTER 24 HOURS: CAVING> -C .7 > w o. m m m o E o. w v w o" Description n m c7 o E, 1n w a> E$ o ar a m E t- 3 tO o m a m z\ a o TEST RESULTS Plastic Limit H Liquid Limit M oisture Content - • N-Value - 10 20 30 40 50 60 70 20 0 0 3 4 7 15 19 18 14 1.8 7 inches of TOPSOIL 04 Tan, moist, Clayey SAND (SC) with silt, very loose Mottled Gray -Reddish Tan from 2 feet _ 1 _ 22 _ SS t 1 2 .:...:...:...:...:...:...:... -: ........ .. ...., .... _.__... ... .... ..:... ..:.. :.. :.. ........................ :...t...:. :...:...:... ..:._:._:...:...:...:... .:...:...:. .. I... I...f... .. :...:...:...:. ..'...:.. .'... _..:...:...:... :...1 ...1 ...1.. — — — — 15 — — 2 24 SS 2 2 5 Mottled Gray -Reddish Tan, moist, Silty fine SAND (SM) with clay, loose ..... 'ii!! 3 24 SS 3 3 4 5 _ 6 Light Gray, moist, poorly graded fine to medium SAND (SP) to poorl graded fine to medium SAND (SP-SM) with silt, medium dense Light Tan -Tan from 8 feet Light Gray from 10 feet Estimated Seasonal High Groundwater level = 10 Feet . S. C. ii. rn r. ", S.pi u"rL 1: tl� ... ___ 4 22 SS 7 10 — _ 5 --- 6 24 24 SS SS 7 i0 11 a 10 1t — 10 — 10 4 — — — 7 22 SS 6 7 6 5 15 Baring terminated at 15 ft. — — — _ — 6 g -10 — 5 25 — 10 36 35 Notes: SS "= Split Spoon Sample ST = Shelby Tube Sample HA = Hand Auger Sample BS = Bulk Sample PAGE 7 of 1 Standard Penetration Tests were performed in the field in general accordance m1h ASTA4 D 1586- GET '— - r ear BORING LOG B!"I PROJECT: Camp LeJeune New Elementary School I ocT o 9 2009 CLIENT: Kimley-Horn & Associates, Inc. _ PROJECT LOCATION: Camp LeJeune, North Carolina PROJECT-NO:=EC09=228G BORING LOCATION: See Attached Boring Location Plan SURFACE ELEVATION: 21.5' MSL DRILLER: G E T Solutions, Inc. LOGGED BY: P. Lankford, EIT DRILLING METHOD: Mud Rotary(Wash) DATE: 9-2-09 DEPTH TO WATER -INITIAL*: Q 15' AFTER 24 HOURS: ., 12.5' CAVING> .C_ c o > t j w a w w v o E a 2 w m o— D25Cfl PtlOrl a c7 n o E Z N n> E N a 01 E N 3 fO o m o. m Z\ o u TEST RESULTS Plastic Limit H Liquid Limit Moisture Content - • N-Value - 10 20 30 40 50 60 70 — so — ts — 10 0 0 2 3 8 17 13 14 2.0 11.8 8 inches of TOPSOIL ' _ iiiii _ 1 _ 18 _ SS 1 ... .. .. ... .. .. :. .. :. .. - ...,.I...I.. .:...... I. _:... ;...:...I : ;,..;.. p . . :... ........ ..,. . ...,.....20 : : _..: _.:...:._:...:...:.. :... .................... :... [ : 0.7 Tan, moist, Silty fine SAND ISM), very loose 2 12 SS 2 2 z 5 Light Tan -Tan, moist, poorly graded fine to medium SAND (SP) to poorly graded fine to medium SAND (SP-SM) with silt, loose to medium dense Estimated Seasonal High Groundwater Level - 9.5 feet :(r t .?:'; .ia avert: f4i . �;, 3 18 SS 3 5 7 12 12 — — 5 --- — 24 — SS 9 s — 10 a — 1d'; Light Tan -Tan, moist to wet, poorly graded fine to medium SAND (SP-SM) with silt to Silty fine SAND (SM), with Clay, medium dense Wet from 15 feel ::::: 6 22 Ss 7 7 e ..... 7 15 S S 7 5 — 1s<z _ — 5 Boring terminated at 15 ft. s —_ e — 0 5 0 — — 25 10 30 35_ Notes: SS = Split Spoon Sample ST = Shelby Tube Sample HA = Hand Auger Sample BS = Bulk Sample PAGE 1 of 1 Standard Penetration Tests were performed in the field in general accordance with ASTM D 1586. KEY TO SYMBOLS11 �4" Symbol Description Strata symbols OCT 9 2009 Topsoil Clayey Sand Silty Sand F';t,:s Poorly graded Sand "" with Silt ME Lean Clay Misc. Symbols a Water table during drilling Water table at boring completion Notes: 1. Exploratory borings were drilled on 9-2-09 using a 4-inch diameter continuous flight power auger. i2. No free water was encountered at the time of drilling or when re -checked the following day. 3. Boring locations were taped from existing features and elevations extrapolated from the final design schematic plan. 4. These logs are subject to the limitations, conclusions, and recommendations in this report. 5. Results of tests conducted on samples recovered are reported on the logs. RIE n --.. " �..�.v1 :ilk OCT 7 0 2009 BY:- " APPENDIX III GENERALIZED SOIL PROFILE 30 30 - - - zo—____ _ 1 ... 32 .I 3 6 3d q d 5 El ] ] NM=12 5 10 23 21 '19;k7! 510 1 2 6 5 0 10 -KZ��Lll d5 66 ! .I:.Ll 9 3] .I:I. t {1 J ] _04 E 5] 3 d 66 .to _ __ ___ _ _ .10 20 20 _30 _ .30 Strata Clayey Sand �. Topsoil �j'' MMM111 L C:� GET Solutions. Inc. 1 SIIyClayeysand " `k-� GENERALIZED SOIL PROFILE :`;Y<' J �ts SCALE: AL DRAWN BY/APPROVED BY DATE DRAWN Silty Sand L i VER ICAL SCALE: I'=W' CANS ��I D/2009 r Camp LeJeune Family Housing Feasibility Study Poorly graded Sand yah silt �el Carnp LeJeune. North Carolina �I �. Fat Clay FIGURE NUMBER PROJECT NO. EC08-321G Symbol Description Strata symbols Topsoil OCT D J 2009 Silty Clayey Sand BY: Silty Sand Poorly graded Sand with Silt Fat Clay Clayey Sand Misc. Symbols 4 Water table during drilling Notes: 1. Exploratory borings were drilled on 10-7-08 using a 4-inch diameter continuous flight power auger. 2. No free water was encountered at the time of drilling or when re -checked the following day. 3. Boring locations were taped from existing features and elevations extrapolated from the final design schematic plan. 4. These logs are subject to the limitations, conclusions, and recommendations in this report. 5. Results of tests conducted on samples recovered are reported ' on the logs. ' B-13 6-16 1 2 2 3 B-15 B-t] 1 2 20 - _ _ I I NM11=15.] 12, _LL-28 _ 1 2 1 2 By6 1 � ; 2 3 &10 1_1 20 36 22 22 dd 11 22 ] 6 36 33 22 11 ]J 67 33 ri3 30 78 1 22 6 ] 8 d 6 3 6 7 9 2 2 �. ] 10 1 10 S 8 `{ 57 9 11 ] d i{ 13ll 0 10 9 11 j[< ' I: I. 0 9 3 3 f .41 9 10 ll l] 8 10 ;; - 6 I i Id l< 1 5 6 1617 B9 13 16 98 ]8 I'P I. 61 - 10 ). 1011 911 JI1 613 .1 1620 1O. 10 60 -- _]9 l: —_ -1 - .i'li. ill' ]_10 10 l.I. .. . 111z 9 9 NM=22,0 1310 ' 6 ] 11 11 . . ' I . l 6 8 : .: , j .I . L 10 12 46 — it ;Chl i _.1:I:L ff 67 - <5 Iq: j. ;'1 3< •I'Pf 1 JS 56 '1':Il i.'L 1 I _ _ <3 6 5 23 6] 3d 3 5 dd 5 6 ] B dd 810 10 10 -20 __ _ _20 -30 -- — — 30 Strata symbols Topsoil GET Solutions, Inc. [ Clayey Sand n GENERALIZED SOIL PROFILE o oN nL DRAWN BY/APPROVED BY scnLa DATE DRAWN Silt Sand y sc'MAi=16 GWS 9/11/2009 es Camp LeJeune New Elementary School ; Poorly graded Sand I wlm S,II o Camp LeJeune. North Carolina FIGURE NUMBER I PROJECT NO. EC09-228G Lam---- 30 10 301 Strata symbols Topsoil UZI Clayey Sand ai Silly Sand I fez! ` Poorly graded Sand L:, with Sill 22 1 I 2 2- LL= 5 5 II �. �" 5] 5] 6 9 :' • F'i . 1 n•: ] 9 1112 911 8 9 1]15 211 19 10 'I' I' 9 9 11 13 1 ! : 9 10 1011 L L 1 3 3 57 .._. _ 'iti1. C' . . a a; a5 6 a a -7� 11 T7 —2'2 23 J J as 1B 12 to _1XC I' 1011 to 11 78 J:h 3 5 NM=22a 6 10 1X :I: I; 1 ]5 LY:7. I.6411 4 I a5 J \AJ <7 N O O [_n L /P JJ 21 12 —22J3 2 l ""';•' ]9 1]I115 55 hC 61 ]9 10 a I J:rj J34 J5 ]] R-5 — NM=1].I r1 •LL I 11:1: NM-6 3 20 10 0 4 10 20 -30 BR-] rCBR-8 LER-9 MR 1 . . . . I 1 NIM-15.9.. J, NM=112 NM-102 J_:.. 2 2 ] 1 I .::: .. .. < 2] 22 .1'I.LIr 610 Id'1. L� ]9 .. .. ..7 9 a 9_ L 10Il NM]3NM=6J aNM=1].I ]6 6] 66 ]6 Strata symbols Ell Topsoil Clayey Sand ISilty Sand Poorly graded Sand with Silt ELean Clay 10 Symbol Description Strata symbols Topsoil Clayey Sand Silty Sand 'rn-M LOcl�j Poorly graded Sand with Silt Lean Clay Misc. Symbols Q Water table during drilling Water table at boring completion INotes: 1. Exploratory borings were drilled on 9-2-09 using a 4-inch diameter continuous flight power auger. 2. No free water was encountered at the time of drilling or when re -checked the following day. 3. Boring locations were taped from existing features and elevations extrapolated from the final design schematic plan. 4. These logs are subject to the limitations, conclusions, and recommendations in this report. 5. Results of tests conducted on samples recovered are reported on the logs. OCT 0 n 2009 SUMMARY OF CBR TEST DATA Project: Client: Kimley-Horn & Associates, Inc. OCT SUMMARY OF CBR TEST RESULTS L5y____: LeJeune New Elementary School Project Location: Camp LeJeune, North Carolina Project Number: EC09-228G Sample Number Sample Location Sample Depth (fQ USCS Symbol Natural Moisture Content (%) Atterberg Limits (LLIPL/PI( Passing #200 Sieve (%) Maximum Dry - Density (pcf) Optimum Moisture (%) Soaked CBR Value :Resiliency - Factor Swell (%( CBR-2 CBR-2 0.7 to 2.0 SM 10.4 Non -Plastic 33.1 111.6 12.4 16.7 3.0 0.0 CBR-5 CBR-5 0.5 to 1.5 SM 17.1 Non -Plastic 17.5 106.3 13.4 22.8 3.0 0.0 CBR-6 CBR-6 1.0 to 2.0 SM 6.3 Non -Plastic 13.7 104.3 14.4 22.4 3.0 0.0 CBR-7 CBR-7 1.0 to 2.0 SM 15.9 Non -Plastic 24.8 108.8 12.1 22.0 3.0 0.0 CBR-8 CBR-8 1.0 to 2.0 SM 11.2 Non -Plastic 14.9 103.8 14.3 24.7 3.0 0.0 CBR-9 CBR-9 1.0 to 2.0 SM 10.2 Non -Plastic 13.7 103.2 13.3 23.7 3.0 0.0 ------------- GET 504 E. Elizabeth Street. Suite 2 Elizabeth City, North Carolina 27909 Tel 252-335-9765 Fas. 252-3359766 page 1 of 1 G d t> O 113 MOISTURE DENSITY RELATIONSHIP (PROCTOR CURVE) 7AV for Sp.G. _ 2.65 111 109 107 105 103 Water content. % Test specification: AS] M D 69s-00a Method A Standard Elev/ Classification Nat. %> % < Depth USCS AASHTO Moist. Sp.G. LL PI No.4 No.200 0.7 to 2 SM A-2-4(0) 10.4 Nil NP 11,0 33.1 .feet TEST RESULTS MATERIAL DESCRIPTION Maximum dry density = 111.6 pcf ran -Gray silty fine SAND (SM) Optimum moisture = 12.4 % Project No. EC08-321G Client: Kimley-Horn and Associsics. Inc Remarks: Project Camp Leleune Pamilq Housing Feasibility tilud)' CBR No. 2 Soaked C6R Value =- 16.7 o Location: CBR-2 Resiliency Factor= 3.0 GET SOLUTIONS, INC. Elizabeth City, North Carolina MOISTURE DENSITY RELATIONSHIP (PROCTOR CURVE) ZAV for 108 Sp.G. _ 2.65 106 104 102 100 T — -- —--- ; — - - -,- -,-�— -- —F -,--- ;-;-_, I— ____ ---�'- _ ---- j----— -1 i -14 I 10 l 6 8 10 12 Water content, % Test specification: ASTM D 698-00a Method A Standard Elev/ Classification Nat. Depth USCS AASHTO Moist. 0.5 to L5 SM A-2-4(0) ITI tcct TEST RESULTS Maximum dry (Iensity= 106.3 I)d Optimum moisune= 13.4 % Project No. FC09-228G Client: Kimlcy-Morn & Associate, Inc. Project: Camp Lcicunc New Flumcntary School • Location: CHR-5 MOISTURE DENSITY RELATIONSHIP (PROCTOR CURVE) GET SOLUTIONS, INC. 14 Sp.G. I LL 16 18 PI 0 � No.4 No.200 NI' NI' U2 17.5 MATERIAL DESCRIPTION Tan Silly line SAND (SM) Remarks: CBIZ-5 Soaked Clik Value =22.R Resilience Factor= 3.0 450 400 350 300 :y 250 rt N n 2(ju 150 100 50 0 0.000 Camp LeJeune New Elementary School - CBR-5 Rom': c,:NYED OCT 0 ? ?009 BY: �j 0.050 0.100 0.150 0.200 0.250 0.300 0.350 Penetration OCT t1 9 2009 MOISTURE DENSITY RELATIONSHIP (PROCTOR 108 106 104 102 100 98 9 11 13 15 Water content, % Test specification: ASTM D 698-00a Method A Standard Elev/ Classification Nat. Depth USCS AASHTO Moist. Sp.G. LO to 2.0 SM A-2-4(0) 6.3 Icct - TEST RESULTS Maximurn dry density = 104.3 pcf Optimum moisture= 14.4'A Project No. EC09-228G Client: Kimlcy-I-lore & Associ tcs. hic. Project: Camp Lc.lcunc Ncw Elcinenlmy School • Location: CBR-6 MOISTURE DENSITY RELATIONSHIP (PROCTOR CURVE) GET SOLUTIONS, INC. ----- I - I -- 1-i- -- 17 19 21 ZAV for Sp.G. _ 2.65 0 LL PI Noo.200 NI' NP U-13.7 MATERIAL DESCRIPTION ran Silly line SAND (SM) Remarks: CBR-6 SoAcdCBR Value =22.4 Rcsilicncy Factor= 3.0 450 -- 400 350 300 u 2511 — a a v n 200 -� 150 100 — SO 0 0.000 Camp LeJeune New Elementary School - CBR-6 0.050 0.100 0.150 0.200 0.250 0.300 0. Penetration 450 400 350 300 n 250 a N N d N 200 150 100 50 0 0.000 Camp LeJeune New Elementary School - CBR-7 0.050 0.100 0.150 0.200 0.250 0.300 0.350 Penetration 1 �JLJ �/ JLI ll � 1'J.ILi OCT 0 9 2009 z MOISTURE DENSITY RELATIONSHIP (PROCTOR CURVE) 108 ZAV for Sp.G. _ 2.65 106 104 102 100 98 8 10 12 14 Water content, % Test specification: ASTM D 698-00a Method A Standard Elev/ Classification Nat. Depth USCS AASHTO Moist. 1.0 to 30 SM lect TEST RESULTS Maximum dry dcnsily= 103.1i pc1' Optimum inoishuc= 14.3 % Project No. EC09-228G Client: Kin ley-l-Ioin,C Associates, [nc. Project: C;unp I_alcun< New 6lcmcntary School • Location: CBR-S MOISTURE DENSITY RELATIONSHIP (PROCTOR CURVE) GET SOLUTIONS, INC. ,I - tltt 1 ;__L �1 1 _ ► 16 16 2U Sp.G. ILL PI No.4 No.200 NP, _ Nil 0.8 14.9 MATERIAL DESCRIPTION Remarks: CBR-S Soaked C13R Value = 24] Rcsilicncy Paaor= 3.0 500 450 400 - 350 300 N n y 250 v N 200 - - I- 150 100 50 0 0.000 Camp LeJeune New Elementary School - CBR-8 0.050 0.100 0.150 0.200 0.250 0.300 0.350 Penetration OCT 0 9 ?009 MOISTURE DENSITY RELATIONSHIP (PROCTOR CURVE) 107 ZAV for Sp.G. _ 2.65 105 103 101 KE M � I I — I -II _ — l - -- —�--- --- -- -1-- ---�- 4,- -C ------ 1-- --- -- — F 8 10 12 14 Water content, % Test specification: AS'I'M D G98-OOa Mclhud A Standard Elev/ Classification Nat. Depth USCS AASHTO Moist. I M to 2.0 Sbl A-2-4(0) 10.2 - - fcct TEST RESULTS Maximum dry density= 103.2 pcf Optimum moislurC= 13.3'%: Project No. EC09-228G Client: Kindey-l-loin -, Associates. Inc. Project: Cnmp Lcicune New Elementary School • Location: C812-9 MOISTURE DENSITY RELATIONSHIP (PROCTOR CURVE) GET SOLUTIONS. INC. 16 18 20 Sp.G. LL PI No.4 No.200 IN NP 0.0 13.7 MATERIAL DESCRIPTION Tan Silty Zinc SAND (SND Remarks: CBR-9 SonkedCHR Vtduc=23.7 12csilicncy Factor= 3.0 450 -- 400 350 — 300 - y 250 G N N 200 I 150 100 50 0 0.000 Camp LeJeune New Elementary School - CBR-9 0.050 0.100 0.150 0.200 0.250 0.300 0.350 Penetration Rr-` r�_�„_�� y,r , . OCT 0 9 2009 BY: APPENDIX V DCP TEST DATA 7OCT 0 ?009 GET J BY: DCP TEST DATA Project: Camp LeJeune New Elementary School Date: 4-Aug-09 Location: Camp LeJeune, North Carolina Soil Type(s): SP-SM to SM GET Project l EC09-228G Surficial Thickness: 6 inches Test Starting Depth: 11.5 inches (Concrete, Asphalt. Slone, Topvul. etc.) Hammer Soil Type Ol9.uns Test Identification: OCR a V.6 Ns. OCL CBR-5 O Both M1ammers usetl I a All ocher soils No. ofAccumulative Blo Blows penetration Type of Hammer 0.1 1.0 CBR 10.0 100.0 (mm) 0 0 295 $ 127 1 391 1 ___._ --____ -- __ 2 420 1 10 ---- - - -- - - 254 1 479 1 7s 20 — — - - 387 - 508 -- -----,,- - -_1 1 509 536 1 1 c 25 __ _ --- __. -- __ .. 635 E 1 - _ 1__ -- 605 _.,_.670 __- - 1_....._._ �- _ _ 1 _ - F 30 w 0 35 ---_____ - _ _ _ ---_ _. _ --____. - _ _ _ _ 762 : W 889 0 1 -_--- 696 ____ — 1 ---- 40 45 . 1016 - 1143 1 726 1 - _ _ _ _ _ - _ _ _ - 1 __ 752 -_--1 - --- -- 1 778 1 - _ _ _ _ ---..i._....__...805 50 270 i... 833„ 1.,. .... 55 1397 ---____. ___. -____. 860 60 1524 1 888 1 1 913 1 0.1 1.0 10.0 100.0 BEARING 0 2000 4000 CAPACITY, psf 6000 8000 10000 12000 —'---- 1 1 0 — o 5 127 1 1n 254 15 381 20 ( 508 -- ----- --- ----- --------------- ------------ 1 ❑ 25 - 635 E -. _ ........... _.._' 1 _ 1- 30 O 35 - 762 = 889 W O _....._'.._.... _ 40 45 1016 1143 ------ 1 50 - Based on pp I -interrelationships of CBR and Bearing values (Doesill of 1270 I 5$ - Concrete Airport P menl Portland - 1397 -- --� — Cent out A 'anon, pays 6 1955) -_.- .....-..... ..-.._�.................. 60 1524 1 0 14 28 BEARING 42 56 69 CAPACITY, Psi 83 ---!----------- 1 OCT 0 GET '�Y'------_' DCP TEST DATA Project: Camp LeJeune New Elementary School Date: 4-Aug-09 Location: Camp LeJeune, North Carolina Soil Type(s): SP-SM to SM GET Project M EC09-22BG Surficial Thickness: 10 inches Test Starting Depth: 14.5 inches (Concrete, Asphalt. Stave, Topsoil, ft.) Hammer O m.t ms Test Identification: eO BorhHammers used =C:'11'1-" BloNo. S Blows Accumulative penetration Type of Hammer 0.1 1.0 CBR 10.0 100.0 (mm) 0 0 0 375 1 5 127 1 437 1 --- - --- ----- 1_. I 485 1.._ 10 -- - --- -- ---- 254 1 525 -- 567 15 20 381 508 - — — - _ _ _ _ . --- _ _ 1 __—___—____.._..__._...._ 593 ..... . ......... 624 1 25 _.. 635 E --____. —__I_ 2._ 1_- 74.6 779... 1 .. ......... 1 - 30 Q. w 0 35 762 : a 889 W -- __ _ — --. ____ ---- - ---____. ___. 1 813 45 1143 1 847 1 1 882 1 -------- ......_. _._.. --------- _. - 50 _ - 1270 _ — _ _ . — — _ _ _ _ _ . _ _ _ _ .... . _. ..... 55 397 ---____. —_ __. _____1 ;...... 50 1524 1 0.1 1.0 10.0 100.0 0 2000 BEARING 4000 CAPACITY, psf 6000 8000 10000 12000 --- -�---- -� 1 — 1........-.- ,,,,,,., ................. . 0 0 .-.... 1 5 127 -- --I--- fI ------ _— -- 10 254 1 15 - 381 _ 20 508 1 E 25 635 E - -.... Ij ....... 1... _.. 1 30 W O 35 762 2 a 889 WQ - 7 1 40 45 1016 1143 - 50 — Baserox Inuayo e( t ion ...._ ) ......... -�.___... Berimote of CBR load ysi,nships1270 of CBR and Bearing valt es IDesi9n of 1 - 55 — Concrete Airport Pavement, Portland - Con e a Assoc'al on, page S. 1955) 1397 ... .......... 1 ................ 60 1524 0 14 28 42 56 69 83 1 --.--- BEARING CAPACITY, psi OCT .O 2009 GET JBY: _ _ DCP TEST DATA ri Project: Camp LeJeune New Elementary School Dale: 5-Aug-09 Location: Camp LeJeune, North Carolina Soil Type(s): SP-SM to SM GET Project 4: EC09-228G Surticial Thickness: 12 inches Test Starting Depth: 15 inches (Concrete. Asphalt. Stone. Topsoa. etc.) Hammer Sol Type 01o.1 " Test Identification: Oa ®17.6 ms. CBR-7 Oct. O Both hammers used 0 All other soils No. of Accumulative Type of CBR Blows Penetration Hammer 0.1 1.0 10.0 100.0 (mm) 0 0 0 380 1 5 127 1 430,,. 1 — — — _ 1 465 1 10 - - - --- 254 1 498 1 15 381 1 537 1 - — --- 1 ....-.._-.-_._-........._._.-.-.-.-__-. 607 c 25 635 E 1 641 1 ----- ---- -- ------- = E 30 I - - - 713 0. d _--- 1 747 --_._— 1 0. 0 35 -- - 889 W 0 1 783 _ 1 ............____...._..........__..........._..-.-__._ ............._...... 40 1016 .. -- ----. -- ---' 1 815 1 1 849 1 45 -------- ----- - ----- 1143 1 _ 893 — 1 50 55 -- 1270 1397 1 929--—_1 -- --- --- - _ 1_. _ - _ 1 60 1524 1 9.1 1.0 19.9 199.0 '--'-" '-�----- 1 0 5 0 2000 BEARING 4000 CAPACITY, psf 6000 8000 10000 12000 0 127 ---- _.__.—.__...__._._-_ .............._._......_........_... i 10 254 5 381 _ 1 20 508 -' -- ----— -- 1 C 25 635 E 30 762 X - .-.-......._. .............. ..-_�.....-......... 1._ d W CL "-_... .-.-._... ------------ ......... . 0 35 - 889 w 1 0 I 1 40 1016 ......._�.__.-._.... 45 1143 --- _— 50 - Based on aPProeiinate interrelntionshlps 1270 -_ �.... of CBR and Bear ng vain es (Design pl 55 - Concrplc Airport Pavement, porlland - 1397 Crni Association, pgc B. 1955) 60 1524 1 0 14 28 42 56 69 83 t BEARING CAPACITY, psi OCT 0 0 1000 BY: - GE DCP TEST DATA Project: Camp LeJeune New Elementary School Date: 5-Aug-09 Location: Camp LeJeune, North Carolina Soil Type(s): SM GET Project If: EC09-22BG Surficial Thickness: 12 inches Test Starting Depth: 15 inches (Concrete. Asphalt. Stone. Topsail, etc.) Hammer Om.1ms. Test Identification: 10v.6IHs CBR-8Oeom Hammers useu =-'Ils No. of Blows Accumulative Penetration Type of Hammer CBR 0.1 1.0 10.0 100.0 (mm) 0 0 0 5 _�_. __ _ 127 _1-_ -_410�____ 1 440 1 10 - - - 254 1 AM 1 508 1 15 -- - -- --- -- - 381 ....... _�..... _ 531._. .._�_.._.... 20 -� -I — _ _ .. 508 1 560 1 --1 599— _1 .-_- c 25 -- {-I -- - 635 E 1 1 635 670 _ 1 1--...,.- 2 1.-30 w 0 35 — ---- --- --- - -------' 762 2 H a 889 to O _702 -- 1 729 1 1 760 1 40 -- - 1016 1 788 1 45 ---- -- — ---- ------- 1143 1 823 1 1270 1 861� _�- 50 55 — — _ — --- - _ _ ---- 1397 `-1 1524 60 .....-..... — .............. -- ..._....... .......... 1 1 0.1 1.0 10.0 100.0 BEARING CAPACITY, psf 1 0 2000 4000 6000 8000 10000 12000 0 0 5 127 --- - --- - —� 10 254 . ........._..... .................... 15 381 -- --- ---- - 20 c 25 -I 508 635 E 1 _ 1 ....... ....... .... ._ ..... .... 1 H 762 S 30 a W 889 W 0 35 I 0 40 45 50 jj Based on epprodmate oi-nlationships - of CBR and Bearing values (Design of 1016 1143 1270 ... _�................. _ 1 1 5$ - Concrete Alrpotl Pavement Portland - Cement Association, page 8. 1955) 1397 ..___.__ .......-.... ....._.._.._. 60 1524 0 14 28 42 56 69 83 BEARING CAPACITY, psi 1 -�---- GET DCP TEST DATA OCT 0 9 2009 IDS: �— Project: Camp LeJeune New Elementary School Date: 5-Aug-09 Location: Camp LeJeune, North Carolina Soil Type(sj: SP-SM to SM GET Project#: EC09-228G Surficial Thickness: 12 inches Test Starting Depth: 15.5 inches (Conuem, Aspnan, Stone, Twtol, etc.) Hammer O 10.1 ms Test Identification: ®v.6 ms. hammers used CBR-9OBoth =CH Accumulative CBR No, of Penetration Type of Blows Hammer 0.1 1.0 10.0 100.0 (mm) 0 5 0 400 1 i445 ................_-._...-.-..-...- 1 487 1 10 15 ci 25 1 1 530 ......................... 569 1 .......................... 1 _ 606 670 695 1 : 30 n 1 721 1 750 — 1 w 0 35 - 1 776 801 1 .............. 1 40 45 s0 1 826_— _ _ — 1 1 _.. 874 1--- 1 1... 55 1 6 1 1 1 1 _ 1 0 5 10 15 20 25 x l— 30 a p 35 40 45 50 55 60 0 0 127 254 381 508 635 E 762 x f- a 889 W O 1016 1143 1270 1397 1524 1.0 10.0 10).0 BEARING CAPACITY, psf 2000 4000 6000 8000 10000 12000 0 127 254 381 508 635 E E 762 x H a 889 W 0 1016 1143 1270 1397 1524 0 14 28 42 56 69 83 BEARING CAPACITY, psi — Based on approdinatp interrelationships of CBR and Bearing values (Oesi9n of Concrete Airport Pavement, Portland — Cement Association, page 8, 1955) — CT ,� 9 ?009 BY:D___ APPENDIX VI PAVEMENT DESIGN ANALYSIS OCT 0 0 2009 Win PAS asp. Pavement Thickness Design According to 1993 AASHTO Guide for Design of Pavements Structures American Concrete Pavement Association Flexible Design Inputs Agency: Company: Kimley-Horn and Associates, Inc. Contractor: roject Description: Camp LeJeune New Elementary School Location: Pavement Design Parking Lot Flexible Pavement Design/Evaluation Structural Number 1.00 Soil Resilient Modulus 12,221.60 psi Design ESALs 4,835 Initial Serviceability 4.20 Reliability 75.00 percent Terminal Serviceability 2.80 Overall Deviation 0.49 Layer Pavement Design/Evaluation Layer Material Layer Coefficient Drainage Coefficient Layer Thickness Layer SIN Asphalt Cement Concrete 0.30 1.25 2.00 0.75 Crushed Stone Base 0.12 1.25 8.00 1.20 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0,00 0.00 0.00 0.00 0.00 �: bpi 1.95 Friday, September 11, 2009 11:29:12AM Engineer: WinPAS OCT ,i) �, 2009 Pavement Thickness Design According to 1993 AASHTO Guide for Design of Pavements Structures `�R�'----- American Concrete Pavement Association ESAL Data by Vehicle Type Agency: Company: Kimley-Horn and Associates, Inc. Contractor: Project Description: Camp LeJeune New Elementary School Location: Pavement Design Parking Lot Traffic Factor Estimated Rigid Thickness 9.00 inches Estimated Structural Number 2.5 Terminal Serviceability 2.8 Design Life 20 years Annual Growth Rate 0.00 percent Traffic Input by Day I I4111G 111PU I Design Lane Vehicle Axle Load Axle Type Number Vehicle Axle Load Axle Type Number 2.00 Single I 12.00 Single 0.00 �' "" 16.00 Single 2.00 Single 1,200 34.00 Tandem 0 r- 10.00 Single 12.00 Single 0.00 A-Q 34.00 Tandem �- -- —' 24.00 Single 0- 34.00 Tandem 0 1.00 0.00 0 Single L'��"����•� ��•�� .00 3434 .00 Single Tandem 34.00 Tandem 0 34.00 Tandem warn :'iw*•-w 34,00 Tandem `� 34.00 Tandem 0 Total Rigid ESALs 3,523 Total Flexible ESALs 4,835 Friday, September 11, 2009 11:29:49AM Engineer: REC. 1VED WinPAS OCT o 0 ?009 Pavement Thickness Design According to �Y: 1993 AASHTO Guide for Design of Pavements Structures American Concrete Pavement Association Flexible Design Inputs Agency: Company: Kimley-Horn and Associates, Inc. Contractor: roject Description: Camp LeJeune New Elementary School Location: Pavement Design Service Road/Bus Loop Flexible Pavement Design/Evaluation Structural Number 2.20 Soil Resilient Modulus 12,221.60 psi Design ESALs 326,927 Initial Serviceability 4.20 Reliability 75.00 percent Terminal Serviceability 2.80 Overall Deviation 0,49 Layer Pavement Design/Evaluation Layer Material Layer Coefficient Drainage Coefficient Layer Thickness Layer SIN Asphalt Cement Concrete 0.30 1.25 1.50 0.56 Asphalt Cement Concrete 0.30 1.25 2.50 0.94 Crushed Stone Base 0.12 1.25 8.00 1.20 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 oll Z.ru Friday, September 11, 2009 11:33:50AM Engineer: WinPAS OCT o 9 Zoos Pavement Thickness Design According to 1993 AASHTO Guide for Design of Pavements Structures LBY:- American Concrete Pavement Association ESAL Data by Vehicle Type Agency: Company: Kimley-Horn and Associates, Inc. Contractor: Project Description: Camp LeJeune New Elementary School Location: Pavement Design Service Road/Bus Loop Traffic Factor Estimated Rigid Thickness 9.00 inches Estimated Structural Number 2.5 Terminal Serviceability 2.8 Design Life 20 years Annual Growth Rate 0.00 percent Traffic Input by Day Traffic Input by Design Lane Vehicle Axle Load Axle Type Number Vehicle Axle Load Axle Type Number - . 2.00 Single r 12.00 Single 0.00 g tr '_"` j 16.00 Single 2.00 Single 0 34.00 Tandem 0 F- 10.00 Single 12.00 Single }� 0.00 t.._ �" 34,00 Tandem —� — 24.00 Single 8 _ 34.00 Tandem 2 r_ _ ..... 12.00 0.00 Single L _ 2.00 3 34.00 Single Tandem 34.00 Tandem 10 34.00 Tandem 34.00 Tandem ` 34.00 Tandem 0 Total Rigid ESALs 406,734 Total Flexible ESALs 326,927 Friday, September 11, 2009 11:34:11 AM Engineer: 1 �J�J �.� 1.1 �1 �✓ '�/� OCT 01) 2009 BY: APPENDIX VII SATURATED HYDRAULIC CONDUCTIVITY TEST RESULTS -G E T Solutions, Inc. SATURATED HYDRAULIC CONDUCTIVITY WORKSHEET Sheet No.: 1 of 1 Project Name.: Camp LeJeune Elementary School iParcel ...............: Pond South of Elementary School Terminology and Solution Boring No......: 3MP-7 IDate .................: 9/2/2009 Ksat : Saturated hydraulic conductivity investigators.: R. Woodard IFile Name.........: Q: Steady-state rate of water flow into the soil Boring Depth.: 10-feet JWCU Base. Ht. h: 15.0 cm H: Constant height of water in borehole Boring Dia..... : 8.3 cm WCU Susp. Ht. S: 15.2 cm r: Radius of cylindrical borehole Boring Rad. (r): 4.15 cm Const. Wtr. Ht. H: 30.2 cm Ksat = Q[sinh-1 (H/r) - (r2/H2+1).5 + r/Hj / (2pH2) [Glover Sol VOLUME ml Volume Out (ml) a TIME hr:min:sec a/ Elapsed Time Flow Rate Q ml/min a/b ------------------ Ksat Equivalent Values -------- -------- hr:min:sec min b cmlmin (cm/sec (cm/day)(in/hr fUda 2000 _ 11:30:00 AM k. - - I - I - 19001 100 11:30:05 AMI 0:00:051 0.08 1200,001 0.379 6.32E-031 546.0 &9561 17.91 18001 1001 ' 1 1:30:10 AMI 0:00:051 o.081 1200.001 0.3791 6.32E-031 54&01 &9561 17.91 17001 1001 11:30:15 AMI 0:00:05 oml 1200.00 0.3791 6.32E-03 546.01 &9561 17.91 - 16001 1001 11:30:21 AMI 0:00'.06I 0.101 1000.001 0.3161 5.27E-03 455.0 7.463 14.93 1500 100 11:30:26 AMI 0:00705 0.08 1200.001 0.3791 6.32E-03 546.0 8.9561 17.91 14001 1001 11:30:32 AMI 0:00:061 0.101 1000.001 0.3161 5.27E-03 455.0 7.4631 14.93 1300 100 11:30:37 AMI 0:00:051 0.08 1200.001 0.3791 6.32E-03 546.0 8.956 17.91 12001 0:00: o6l 0.10 1000.001 0.3161 5.27E-03 455.0 7,4631 14.93 11001 100 11:30:48 AMI 0:00:051 0.08 1200.001 0.3791 6.32E-031 546.0 8.9561 17.91 10001 1001 11:30:54AM 0:00:061 0.3161 5.27E-03I 455.0 7.463 14.93 900l 100 11:30:59 AM 0:00:05 0.08 1200.001 0.3791 6.32E-03 546.0 8.9561 17.91 8001 100 11:31:05 AMI 0:00:061 0.10 1000.001 0.3161 5.27E-03 455.0 7.4631 14.93 I � I Natural Moisture: 6.3% Init. Satur.Time: 11:00:00 AM ESTIMATED FIELD KSAT:I 0.3531 5.88E-031 508.11 8.3341 16!67 3 `) Texture/Classif: SAND (SP) Consistency: IMedium dense iDepth to an Impermeable Layer: N/A Notes: % Passing #200 Sieve = 1.8% I Groundwater in excess of o -c Structure/Fabric: Slope/Landsc: IDepth to Bedrock ...................: N/A ksatRepohl.As Precision Permeameter Rev. 4/5/002 F F J G E T Solutions, Inc. SATURATED HYDRAULIC CONDUCTIVITY WORKSHEET Sheet No.: 1 of 1 Project Name.: Camp LeJeune Elementary School iParcel ...............: Pond South of Elementary School Terminology and Solution Boring No......: BMP-2 IlDate .................: 9/2/2009 Ksat : Saturated hydraulic conductivity Investigators.: R. Woodard IFile Name.........: Q: Steady-state rate of water flow into the soil Boring Depth.: 10-feet WCU Base. Ht. h: 15.0 cm H: Constant height of water in borehole Boring Dia..... : 8.3 cm WCU Susp. Ht. S: 15.2 cm r. Radius of cylindrical borehole Boring Rad. (r): 4.15 cm lConst. Wtr. Ht. H: 30.2 cm Ksat = Q[sinh-1(H/r) - (r2/H2+1).5 + r/H] / (2pH2) [Glover SOIL VOLUME Ll� Volume Out (ml) a TIME hr:min:sec a/ Elapsed Time Flow Rate Q (ml/min a/b ------------------- Ksat Equivalent Values ------------------ hr:min:sec min b cm/min) cm/sec (cm/day) in/hr fUda 20001 1 2:30:00 PMJ - I•. " -� - . 19001 1001 2:30,07 PM 0:00:07 0.12 857.141 0,2711 4.51E-031 390.01 6,3971 12.79 18001 1001 2:30:14 PM 1 0:00:071 0.12 857.141 0.271 4.51 E-03 390.0 6.397 1 12.79 17001 100 2:30:21 PMJ 0:00:071 0.121 857.141 0.2711 4.51E-03 390.01 6.3971 12.79 16001 100 2:30:29 PM 0:00:081 0.13 750.001 0.237 3.95E-03 341.21 5.598 11.20 15001 100 2:30:36 PM 0:00:071 0.121 857.141 0.2711 4.51 E-03 390.01 6.3971 12.79 14001 1001 2:30:44 PM 1 0:00:081 0.13 750.001 0.237 3.95E-03 341.21 5.5981 11.20 13001 1001 2:30:50 PM 0:00:061 0.10 1000.001 0.3161 5.27E-03 455.01 7.4631 14.93 12001 1001 2:30:56 PM 0:00:06 0.10 1000.001 0.3161 5.27E-03 455.01 7.463 14.93 11001 1001 2:31:05 PM 0:00:091 0.15 666.671 0.2111 3.51E-03 303.31 4.9761 9.95 10001 100 2:3114 PM 0:00:09 1 0.151 666.671 0.2111 3.51 E-03 303.31 4.9761 9.95 900 100 2:31:22 PM 0:00:08 0.13 750.001 0.237 3.95E-03 341.2 5.598 11.20 800l 1001 2:31:30 PM 0:00:081 0.13 750,001 0.2371 3.95E-03 341.21 5.598 11.20 Natural Moisture: 7.2% 1 Init. Satur.Time: 2:00.00 AM ESTIMATED FIELD KSAT:I 0.257 4.28E-031 370.11 6.0711 12:14 Texture/Classif: SAND (SP) Consistency: Medium dense Depth to an Impermeable Layer: N/A Notes: % Passing #200 Sieve = 2.0% 'L Groundwater in excess of 12' B.E.G. Structure/Fabric: Slope/Landsc: IDepth to Bedrock ...................: N/A ksatReportl .As Precision Permeameter"" Rev. 415/002 RECEIVED OCT 0 9 2009 BY: APPENDIX VIII CLASSIFICATION SYSTEM FOR SOIL EXPLORATION GET t. Fr Virginia Beach Office 204 Grayson Road Virginia Beach, VA 23462 (757)518-1703 Williamsburg Office 1592 Penniman Rd. Suite E Williamsburg, Virginia 23185 (757)564-6452 CLASSIFICATION SYSTEM FOR SOIL EXPLORATION Standard Penetration Test (SPT). N-value W 92,di OCT 0O 2 009 BY: Elizabeth City Office 504 East Elizabeth St, Suite 2 Elizabeth City, NC 27909 (252)335-9765 Standard Penetration "Pests (SP'I') were performed in the field in general accordance with r1STNI D 1586. The soil samples were obtained with a standard 1.4" LD., 2" O.D., 30" long split -spoon sampler. The sampler was driven with blows of a MO lb. hammer falling 30 inches. The number of blows required to drive the sampler each 6-inch increment (4 increments for each soil sample) of penes rat ion was recorded and is shown on the boring logs. 'fhesuul of thesecond and third penetration increments is termed theSPT-N-value. NON COHESIVE SOILS (SILT, SAND, GRAVEL and Combinations) Relative Density Very Loose 4 blows/ft. or less Loose 5 to 10 blows/1'L Medium Dense 1 I to 30 blows/ft. Dense 31 to 50 blows/ft. Very Dense 51 blows/h. or more Particle Size Identification Boulders 8 inch diameter or more Cobbles 3 to 8 inch diameter Gravel Coarse I to 3 inch diameter Medium I/y to 1 inch diameter Pine I/, to I/, inch dimnetei Sand Coarse 2.00 man to'/a inch (diameter of pencil lead) Medium 0.42 to 2.00 min (diameter of broom straw) Pine 0,074 to 0.42 ram (diameter of human hair) Silt 0.002 to 0.074 ram (cannot see particles) CLASSIFICATION SYMBOLS (ASTM D 2487 and D 2488) Coarse Grained Soils Vlore than 50% rainA on No. 200 sieve GW - Well -graded Gravel GP - Poorly graded Gravel GW-GM - Well -graded Crave] w/Silt GW-GC - Well-gmdcd Grovel w/Clny GP -GM - Poorly graded Gravel w/Silt GP -GC - Poorly graded Crave) w/Clay GM - Silty Gravel GC - Clayey Gravel GC -GM -Silty, Clayey Gravel SW - Well -graded Sand SP - Poorly gmdedSand SW-SM - Well -graded Sand w/Sll, SW -SC- Well -graded Sand w/Clay SP-SM - Poorly graded Sand w/Sih SP-SC - Poorly graded S;md w/CL;y SM- SiltySmd SC - Claygq Sand SC-SM -Silty, Clayey Sand Fine -Grained Soils 50u, ur no, pazscs I he N. 200 sieve CL -Leon Clay CL-ML - Silty Clay ML - Silt OL - Organic Clay/Silt Llguld I.im'u Witt u gre:er CH - Eat Clay MH - Elastic Silt OH - Orgamc Clay/Silt —Highly Organic Soils PT - Peat COHESIVE SOILS (CLAY, SILT and Combinations) Consistency Very Soft 2 blows/ft. or less Soft 3 to 4 b1ows/11, Medium Suff 5 to 8 blows/ft. Stiff 9 to 15 blows/ft. Very Stiff 16 to 30 blows/ft. I -lord 31 blows/h, or more Relative Proportions Descriptive Term Percent Trrce 0-5 Few 5-10 Little 15-25 Some 30-45 Mostly 50-100 Strata Changes In the column "Description" on the boring log, the horizontal lines represent approximate strata changes. Groundwater Readines Groundwater conditions will vary with environmental variations and seasonal conditions, such as the frequency and magnitude of rainfall patterns, as well as tidal influences and man-made influences, such as existing swales, drainage ponds, underdmins and areas of covered soil (paved parking lots, side walks, etc). Depending on percentage of fines (fraction smaller than No. 200 sieve size), coarse -grained soils are classified as follows, Less than 5 percent GW, GP, SW,SP More than 12 percent GM, GC, SM. SC 5 to 12 percent Borderline cases requiring dual sy111bels Plasticity Chart M1 I F -dmq NEEMENJEN ENNIFAVA mm Page 1 of I GET Revision 12112/07 D 11) 20 SO 40 Si) 60 70 80 00 ISO LIDUID LIMIT f,LL) (%)