Loading...
HomeMy WebLinkAboutSW8010431_HISTORICAL FILE_20050110STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW8 pl 043 DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE Zao5 o ! i o YYYYMMDD of WArFR Michael F. Easley, Governor �Ot QG William G. Ross, Jr,, Secretary r North Carolina Department of Environment and Natural Resources Alan W. Klimek, P.E. Director Division of Water Quality January 10, 2005 Commander L.J. Readal, CDR/CEC/USN Commanding General, MCB 1005 Michael Road Camp Lejeune, NC 28541-0004 Subject: Stormwater Permit No. SW8 010431 Modification Bachelor Enlisted Quarters Jackson Street High Density Project Onslow County Dear Commander Readal: The Wilmington Regional Office received a complete modified Stormwater Management Permit Application for Bachelor Enlisted Quarters Jackson Street on November 12, 2004. 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 21-1.1000. We are forwarding Permit No. SW8 010431 dated January 10, 2005, for the construction of the subject project. This permit shall be effective from the date of issuance until January 10, 2015, 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 sixty (60) days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150B 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 Linda Lewis, or me at (910) 395-3900. Sincerely, Rick Shiver Regional Supervisor Surface Water Protection Section RSS/arl: S:IWQSISTORMWATIPERMIT1010431.jan05 cc: Joseph Avolis, P.E., Avolis Engineering Linda Lewis tWilmington'Regional-Office3 Central Files North Carolina Division of Water Quality 127 Cardinal Drive Extension Phone (910) 395-3900 Customer Servicel-877-623-6748 One Wilmington Regional Office Wilmington, NC 28405.3845 FAX (919) 733.2496 IntemeL h2o.enr.state.nc,us NorthCarolina An Equal opportunity/Affirmative Action Employer -- 50% Recycled110% Post Consumer Paper Naturally State Stormwater Management Systems Permit No. SW8 010431 Mod. STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY STATE STORMWATER MANAGEMENT PERMIT HIGH DENSITY DEVELOPMENT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO Cdr. L.J. Readal, MCB Camp Lejeune Bachelor Enlisted Quarters Jackson Street Onslow County FOR THE construction, operation and maintenance of 2 infiltration basins and 2 bio-retention areas in compliance with the provisions of 15A NCAC 2H .1000 (hereafter referred to as the "stormwater rules' and the approved stormwater management plans and specifications and other supporting data as attached and on file with and approved by the Division of Water Quality and considered a part of this permit. This permit shall be effective from the date of issuance until January 10, 2015, and shall be subject to the following specified conditions and limitations: I. DESIGN STANDARDS 1. This permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data. 2. This stormwater system has been approved for the management of stormwater runoff as described in Section 1.6 on page 3 of this permit. The stormwater controls include two infiltration basins which discharge the 1.5" design storm to the two bio-retention areas. Systems 1 & 2 have been designed to handle the runoff from 115,433 square feet and 113,693 square feet of impervious area, respectively. The excess design storm overflow from each system must pass through a 50' vegetated filter prior to discharge. 3. The tract will be limited to the amount of built -upon area indicated on page 3 of this permit, and per approved plans. 4. 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. 5. The runoff from all built -upon area within the permitted drainage area of this project must be directed into the permitted stormwater control system. Page 2 of 7 State Stormwater Management Systems Permit No. SW8 010431 Mod. 6. The following design criteria have been provided in the infiltration basins and.bio- retention areas and must be maintained at design condition: System #1 System #2 a. Drainage Area, 9cres: 4.19 9.85 Onsite, it : 182,516 212,137 Offsite, ft2: 0 0 b. Total Impervious Surfaces, ft2: 115,433 113,693 C. Design Storm, inches: 1.5 1.5 d. Infiltration Basin Depth, feet: 1.8 1.6 e. Infiltration Bottom Elevation, FMSI_: 8.53 11.02 f. Infiltration Bottom Surface Area, ft2: 6,576 7,352 g. Infiltration Bypass Weir Elevation, FMSL:10.27 12.6 h. Infiltration Storage Volume, ft3: 14,486 14,715 i. Type of Soil: Silty Sand Silty Sand j. Expected infiltration Rate, inlhr: 1.7 1.7 k. Seasonal High Water Table, FMSL: 6.47 9.0 I. Orifice size to bio-retention area: 1.25110 1.25" H M. Bioretention Surface Area, ft2: 8,500 8,900 n. Bioretention Bottom Elevation, fmsl: 7.05 10.07 o. Bioretention Storage Elevation, fmsl: 7.80 10.82 P. Bioretention Volume, ft3: 6,375 6,675 q. Number of Trees: 49 51 r. Number of Shrubs: 147 154 S. Time to Draw Down, hours: 15 14 t. Receiving Stream/River Basin: Courthouse Bay/ White Oak U. Stream Index Number: WOK02 19-36 V. Classification of Water Body: "SA HQW" 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. Page 3 of 7 State Stormwater Management Systems Permit No. SW8 010431 Mod. 3. The permittee shall at all times 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 revegetation 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 bypass structure, infiltration media, flow spreader, catch basins, piping and vegetated filter. g. A clear access path to the bypass structures must be available at all times. 4. Records of maintenance activities must be kept and made available upon request to authorized personnel of DWQ. The records will indicate the date, activity, name of person performing the work and what actions were taken. 5. The facilities shall be constructed as shown on the approved plans. This permit shall become voidable unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data. 6. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, a certification must be received from an appropriate designer for the system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation. Any deviations from the approved plans and specifications must be noted on the Certification. A modification may be required for those deviations. 7. 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. 8. Access to the stormwater facilities shall be maintained at all times. 9. The permittee shall submit to the Director and shall have received approval for revised plans, specifications, and calculations prior to construction, for any modification to the approved plans, including, but not limited to, those listed below: a. Any revision to any item shown on the approved plans, including the stormwater management measures, built -upon area, details, etc. b. Project name change. C. Transfer of ownership. d. Redesign or addition to the approved amount of built -upon area or to the drainage area. e. Further subdivision, acquisition, lease or sale of all or part of the project area. The project area is defined as all property owned by the permittee, for which Sedimentation and Erosion Control Plan approval or a CAMA Major permit was sought. f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. 10. A copy of the approved plans and specifications shall be maintained on file by the Permittee for a minimum of ten years from the date of the completion of construction. Page 4 of 7 State Stormwater Management Systems Permit No. SW8 010431 Mod. 11. The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements of the permit. Within the time frame specified in the notice, the permittee shall submit a written time schedule to the Director for modifying the site to meet minimum requirements. The permittee shall provide copies of revised plans and certification in writing to the Director that the changes have been made. III. GENERAL CONDITIONS This permit is not transferable 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 formal permit transfer request to the Division of Water Quality, accompanied by a completed name/ownership change form, documentation from the parties involved, and other supporting materials as may be appropriate. The approval of this request will be considered on its merits and may or may not be approved. The permittee is responsible for compliance with all permit conditions until such time as the Division approves the transfer request. 2. 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. 3. 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. 4. 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. 5. 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. 6. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a permit modification, revocation and reissuance or termination does not stay any permit condition. 7. 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. 8. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. 9. The permittee shall notify the Division any name, ownership or mailing address changes within 30 days. Permit issued this the 10th day of January 2005. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION Alan W. Klimek, P: ., Director Division of Water Quality By Authority of the Environmental Management Commission Page 5 of 7 State Stormwater Management Systems Permit No. SW8 010431 Mod. Bachelor Enlisted Quarters Jackson Street Stormwater Permit No. SW8 010431 Onslow Count 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 specification: Signature Registration Number Date SEAL Page 6 of 7 State Stormwater Management Systems Permit No. SW8 010431 Mod. 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 bypass structure weir elevation is per the approved plan. fi. The bypass structure is located per the approved plans. 7. A Trash Rack is provided on the bypass 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. All required design depths are provided. 13. All required parts of the system are provided. 14. The required system dimensions are provided per the approved plans. cc: NCDENR-DWO Regional Office Page 7 of 7 Bioretention Basin Design File Name: S:=QSIBIORETENTION1010431.WK1 Project Number: SW8 010431 Date 7-Jan-2005 Project Name: Bachelor Enlisted Quarters Courthouse Bay Receiving Stream: Courthouse Bay Classification: SA Drainage Basin: White Oak Index Number: Minimum Surface Area c=.95 for BUA, c=.25 for grass Basin # Drainage Area BUA Sum C x A Minimum BR Area Provided Area 1 182516 115433 120660 8446 8500 sf 2 212137 113693 126935 8885 8900 sf 3 0 sf 4 0 sf 5 0 sf Volume Reauired _Basin # Percent BUA Design Storm Rv Value Required Volume 1 63.25% 1.5 0.62 14127 2 53.59% 1.5 0.53 14116 3 #DIV/O! #DIV/0! #DIV/O! 4 #DIV/Ol #DIV/0! #DIV/O! 5 #DIV/01 #DIV/O! #DiV/O! Volume Provided Max. Ponded Basin # Surface Area Depth, ft. Bottom Elev. Storage Elev. Provided Volume 1 8500 0.750 7.05 7.80 6375cf 2 8900 0.750 10.07 10.82 6675 cf 3 cf 4 cf 5 cf Planting Guidelines Ratio of Basin # Min. # Plants Prov. # Trees Prov. # Shrubs Shrubs/Trees 1 195 49 147 3.00 (must be 2-3) 2 205 51 154 3.02 (must be 2-3) 3 (must be 2-3) 4 (must be 2-3) 5 (must be 2-3) Comments AVOLIS ENGINEERING, P.A. P.O. Box 15564 • New Bern, North Carolina 28561 • (252) 633-0068 November 10, 2004 Mrs. Linda Lewis Environmental Engineer NCDENR 127 Cardinal Drive Wilmington, NC 28405-3845 RE: DWQ Stormwater Project No. SW8 010431 Modification Bachelor Enlisted Quarters - Jackson Street AE Project No. 011 12 Dear Linda: Enclosed please find the following in response to your add -info letter of'November 1, 2004: • Signed and Notarized Original O & M plans for both bio-retention areas and two copies. • Thee copies of revised calculations for the new bio-retention areas of 8,500 (Bio-Retention Area #1) and 8,900 (Bio-Retention Area #2). We appreciate your assistance with this project. Should you have any questions or need any additional information or assistance, please do not hesitate to call. RECEIVED NOV 12 2004 BY: OF WArF9 Michael F. Easley, Governor William G. Ross, Jr., Secretary North Carolina Department of Environment and Natural Resources c Alan W. Klimek, P.E. Director Division of Water Quality FAX COVER SHEET Date: November 1, 2004 No. of Pages: 1 To: Joe Avolis, P.E. From: Linda Lewis Company: Avolis Engineering Water Quality Section - Stormwater FAX #: 252-633-6507 FAX # 910-350-2004 Phone # 910-395-3900 DWQ Stormwater Project Number: SW8 010431 Mod. Project Name: Bachelor Enlisted Quarters -Jackson Street MESSAGE: Joe: I received additional information regarding this application on August 2, 2004. Please provide the following information prior to November 8, 2004, to continue the review: 1. Please provide original signatures on both operation and maintenance plans. 2. Please provide revised calculations using the new bio-retention areas of 8,500 and 8,900. The calculations you submitted were only as explanation for the C- values. RSSlarl: S:IWQSISTORMWATIADDINF0120041010431.nov04 North Carolina Division of Water Quality 127 Cardinal Drive Extension Phone (910) 395-3900 Customer Sefvice1-877-623.6748 One Wilmington Reg+onal Office Wilmington, NC 28405-3845 FAX (919) 733-2496 Internet: h2o.enr.state.nc.us NQrthCaroiina An Equal Opportunity/Affirmative Action Employer — 50% Recycled/10% Past Consumer Paper Naturally P. 1 y COMMUNICATION RESULT REPORT ( NOV. 1.2004 FILE MODE OPTION --------------------------- 609 MEMORY TX REASON FOR ERROR E-1) HANG UP OR LINE FAIL E-3) NO ANSWER 6F Date: To: Company: FAX #: I ADDRESS (GROUP) --------------- 9-12526336507 1:36PM ) TTI RESULT ----------OK - NCDENR WIRO PAGE -------- -- P. 1 E-2) BUSY E-4) NO FACSIMILE CONNECTION Michael F. Easley, Governor William C. Ross, Jr,, Secretary North Carolina Department of Environment and Natural Resources FAX COVER SHEET November 1, 2004 Joe Avolis, P.E. . Avolis Englneering 252-633.6507 ' Alan W. Klimek, P.E. Director Division of Water Quality No. of Pages: 1 From: Linda Lewis Water Quality Section - Stormwater FAX # 910-350-2004 Phone # 910-395-3900 DWQ Stormwater Project Number: SW8 010431 Mod, Project Name: Bachelor Enlisted Quarters -.Jackson Street MESSAGE: Joe; i received additional information regarding this application on August 2, 2004, Please provide the following information prior to November 8, 2004, to continue the review: 1. Please provide original signatures an both operation and maintenance plans, 2. Please provide revised calculations using the new biorretention areas ^of 8,500 AVOLIS ENGINEERING, P.A. P.O. Box 15564 • New Bern, North Carolina 28561 • (252) 633-0068 July 27, 2004 Mrs. Linda Lewis NC Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 28405 RE: Additional Information Submittal Stormwater Project No. SW8 010431 Bachelor Enlisted Quarters, Jackson Street, Onslow County N62470-99-R-9127 Dear Linda: 1004 As you requested by your letter of June 16, 2004, enclosed please find the requested additional information in triplicate for the above -referenced project: We have labeled the ponding level elevation and the underdrain invert on the proposed bio-retention area overflow drop box for each bio-retention basin on revised sheet SWM-2. Please see the "Bio-retention Cross-section with Overflow Drop Box" detail and the "Typical Infiltration Pond Decant Structure". 2. Please see sheet SWM-2, "Typical Infiltration Pond Decant Structure" for orifice invert elevations for each infiltration basin. 3. Sheet SWM-3 has been revised to show the additional trees and shrubs. The minimum caliper size for all trees has been changed to 2 % ". Pond # I is 8,500 square feet in size. Required number of trees and shrubs combined: (8,500 SF/43,560 SF/AC) * 1,000 = 195 49 Trees Provided/147 Shrubs Provided Pond #2 is 8,900 square feet in size. Required number of trees and shrubs combined: (8,900 SF/43,560 SF/AC) * 1,000 = 205 51 Trees Provided/154 Shrubs Provided 4. We have enclosed the originally approved sheets C 104, C 107, C 108, C 109 and L102 to make the new plan set. 5. Paragraph 3 has been added to the 0&M plans for each basin. 6. Separate, signed and notarized O&M documents are provided for each basin. Additional information is attached clarifying our "C" value computations. We appreciate your assistance with this project. We hope that the enclosed information will be satisfactory to issue a revised permit. Sincerely, ti p . A v o(Is' 4P.. Pres' en AVOLIS ENGINEERING, P.A. P.O. Box 15564 • New Bern, North Carolina 28561 • (252) 633-0068 July 16, 2004 Mrs. Linda Lewis Environmental Engineer NC Division of Water Quality Wilmington Regional Office 127 Cardinal Drive Extension Wilmington, NC 28405 RE: Stormwater Project No, SW8 010431 Modification Bachelor Enlisted Quarters, Jackson Street, Onslow County A Project no. 01 1 12 Dear Linda: RECEIVED JUL 2 6 2004 BY: We have completed the revisions to the above -referenced project as requested by your letter of June 16, 2004. We forwarded the revised O &.M plans to Marine Corps Base, Camp Lejeune but are still waiting for them. Please accept this letter as a request for an extension until I receive those signed documents back. I appreciate your patience. Should you have any questions relating to this matter, please do not hesitate to call. Sineerely. �1�1']ul 16 04 08:41a Kevin Rvolis 252-633-6507 r. VAX TRANSMISSION AVOLis ENGINEERING, P.A. P.O. Box 15564' New Bern, NC 28562 (252) 633-0068 Fax: (252) 633-6507 avoliseng@always-online.com To: Linda Lewis Fax 4 9 i 0-350-2004 From: Joseph C. Avolis, P.E. Subject: Bachelor Enlisted Quarters . COMMENTS: Date: July 16, 2004 Pages: 2 including cover page 0 P.1 Jul 16 04 08:41a Kevin Rvolis 252-633-6507 P.2 AVOLIS ENGINEERING, P.A. P.O. Box 15564 • New Bern, North Caroline 28561 • (252) 633-0068 July 16, 2004 Mrs. Linda Lewis Environmental Engineer NC Division of Water Quality Wilmington Regional Office 127 Cardinal Drive Extension Wilmington, NC 28405 RE: Storrnwtiter Project No. SWS 010431 Modification Bachelor Enlisted Quarters, Jackson Street, Onslow County nL Project no. 01112 Dear Linda: We have completed the revisions to the above -referenced project as requested by your letter of June 16, 2004. We fors. arded the revised O &.M plans to Marine Corps Base, Carrrp Lejeune but are still N aiting for them. Please accept this letter as a request For an extension until E receive those siencd documents back. appreciate your patience. Should you have any questions relating to this matter, please do not hesitate to call, Sincerely. �F WAT6 Michael F. Easley, Governor 19 Q William G. Ross Jr., Secretary G North Carolina Department of Environment and Natural Resources Alan W, Klimek, P.E.,Director Division of Water Quality Coleen H. Sullins, Deputy Director Division of Water Quality June 16, 2004 Commander B. D. Pina, CDR/CECIUSN Marine Corps Base 1005 Michael Road Camp Lejeu' ne, NC 28542 Subject: Request for Additional Information Stormwater Project No. SW8 010431 Mod. Bachelor Enlisted Quarters Jackson Street N62470-99-R-9127 Onslow County Dear Cdr. Pina: The Wilmington Regional Office received previously requested information regarding the modification to the Stormwater Management Permit Application for Bachelor Enlisted Quarters Jackson Street on April 21, 2004. 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. Please label the ponding level elevation, the outlet pipe invert, and the underdrain invert on the proposed bio-retention area overflow drop box detail, for each bio-retention basin. 2. Please specify the orifice invert on the decant structure detail for each infiltration basin. 3. Please provide calculations of the minimum required number of plants to be planted in each bio-retention basin, as indicated in Section 4.12 on page 53 of the BMP Manual. These requirements, in short: a. Provide 1000 trees per acre of bio-retention area. The planting plan submitted provides only 42 trees. b. Provide at least 3 different species of tree and 3 different species of shrub to ensure diversity. C. Provide a ratio of 2-3 shrubs for each tree. The planting plan submitted provides only 104 shrubs. d. Minimum tree caliper is 2.5". Please revise the Acer Ginnala caliper to 2.5". 4. The details for the original bypass structures for each infiltration basin have not been shown on the revised plan sheets. Please either add the bypass details, or you will need to add the originally approved sheets C-107, C-108, C-109 and L-102, which contain these and other necessary details, to the new plan sheets that were submitted on April 21, 2004, to make the new approved plan set. N. C. Division of Water Quality 127 Cardinal Drive Extension (910) 395-3900 Customer Service Wilmington Regional Office Wilmington, NC 28405 (910) 350-2004 Fax 1 800 623-7748 NCDENR Cdr. Pina June 16, 2004 Stormwater Application No. SW8 010431 Mod. 5. The Operation and Maintenance Plan is missing Section 3, regarding plant materials. Please add those 3 paragraphs on pages 61-62 from the BMP manual to the 0&M document. 6. Please provide a separate, signed and notarized O&M document for each bio-retention basin. This is a requirement imposed on the Division by the AG's office to eliminate confusion and ensure compliance. 7. Please provide information on the C value computation. Using the pre- established C-values from the BMP manual, I am getting more minimum required surface area for each bio-retention basin than is provided. The minimum surface area for Basin #1 should be 8,446 ftz and for Basin #2, 8,885 ftz. Only 8,177 e and 8,167 ft2, respectively, have been provided. Please note that this request for additional information is in response to a preliminary review. The requested information should be received by this Office prior to July 16, 2004, or the application will be retumed 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 mail or fax your request for a time extension to the Division at the address and fax number at the bottom of this letter. The request must indicate the date by which you expect to submit the required information. The Division is allowed 90 days from the receipt of a completed application to issue the permit. The construction of any impervious surfaces, other than a construction entrance under an approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject to enforcement action pursuant to NCGS 143-215.6A. Please reference the State assigned project number on all correspondence. Any original documents that need to be revised have been sent to the engineer or agent. All original documents must be returned or new .originals must be provided. Copies are not acceptable. If you have any questions conceming this matter please feel free to call me at (910) 395-3900. Sincerely, Linda Lewis Environmental Engineer RSSlad: S:IWQSISTORMWATIADDINF0120041010431.jun04 cc: Joe Avolis, P.E., Avolis Engineering Linda Lewis Page 2 of 2 s-�emoAr?u cAr-rt o i:L- :5W 6 0 l0431 OAoD . UFLCPm Orr 1�71D �ETE,Jrin.3 A' CA SI--L-J�O-q - C„ VALVE, _.DIGr1�c,-noa VA'—"JL t—v K SS D .. �} fZ-E S �[a•.I� e/5. (1. 2 _347: WhS... 'BASE'D o,3 ?H-c-- ..✓C}WES. 10_ .ice_._ A(G -. EAOSI-J e-6,17X-o4 .J.._ mmott ' •. SFf% &^j /� FK�sl/ y _ . $o!L Go.J a l Tl a.•►S.. # . T� ''1:�4� . _ Ar2�-�r5 . U � ;; Q cT?�. r3 � o � .R,i✓T>i�Ti o�J �� 5. � 14A I��.. _.. 8 � Erg . _0\\\\\\\\\111111ti1144�11f1f11!!,»�/� � ... .. a 63 x 336,56 11 RECEIVED AUG" 2 2004 - _. ---DWQ PROM # t �1 r COURTHOUSE BAY BEQ'S MCB CAMP LEJEUNE (CONT'D) BREAKDOWN OF DRAINAGE AREA SURFACES & RUNOFF COEFFICIENTS. REF. TABLE 8.03a A "C" YALUE 1.5" STORM RUNOFF ON -SITE BUILDINGS ON -SITE STREETS ON -SITE PARKING ON -SITE SIDEWALKS ON -SITE GRAVEL DRIVE OFF -SITE ASPHALTBLDGS. PERVIOUS (GRASSED) AREAS • . Sandy Soil, 2-7% 20,909 SF 0.95 2,483 FT 3 3,049 SF 0.90 343 FT 3 - 51,401 SF 0.90 5,783 FT 3 10,454 SF 0.90 1,176 FT 3 3,920 SF 0.80 392 FT' 25,700 SF 3,052 FT 3 SF [0�.'95� v• I� 1,258 FT 3 182,516 SF C= 0.635 TOTAL 1.5" STORM RUNOFF VOLUME = 14,487 FT 3 DETERMINE WATER LEVEL RISE IN FILTRATION POND #1 ASSOCIATED WITH THIS RUNOFF VOLUME. POND BOTTOM ELEVATION = 8.53 FT (2.6 Meters). CONTOUR AREA (S1) INCREMENTAL STORAGE (VP) CUIVIlMIULATTVE STORAGE 8.53' (2.6M) 6,576 0 0 9.84' (3.00M) 9,058 10240 10,240 10.99' (3.35M) 10,636 11,324 21,564 DETERMINE POND STAGE ASSOCIATED WITH 1.5" RUNOFF VOLUME. VOLUME STORED BETWEEN 8.53' & 9.84' COUNTOUR = 10,240CF VOLUME TO BE STORED ABOVE 9.84' = 14,487 - 10,240 = 4,247CF POND RISE ABOVE 9.84' CONTOUR = 247 F I0.99' - 9.84) = 0.43' 11,324CF :. 1.5" STORM POND STAGE = 9.84 FT + 0.43 FT =10.27 FT 10.27 FT = 3.13M RECEIVED AUG 6 2 2004 DWQ PROD # COURTHOUSE BAY BEQ'S MCB CAMP LEJEUNE (CONT'D) STORMWATER POND #2 TOTAL DRAINAGE AREA = 4.87 AC = 212,137 SF t0�-I t - ON -SITE IMPERVIOUS AREA = 2.61 ACRES = U,3�,O3 SF OFF -SITE IMPERVIOUS AREA = 0.15 ACRES = 6,534 SF PERVIOUS AREA GRASSED = 212 137 SF - 1OI.1 �93�F + 6,534 SF) 51 % BUILT -UPON AREA = I� 1 ��F +�.534 SF = �6:7°j5 3. (v ak 212,137SF • INCLUDES OFF -SITE AREA DRAINING INTO PROJECT BREAKDOWN OF DRAINAGE AREA SURFACES & RUNOFF COEFFICIENTS. REF. TABLE 8.03a ESCPDM DESCRIMQN ON-SITE BUILDINGS AREA 20,038 SF ON -SITE STREETS 13,504 SF ON -SITE PARKING 57,935 SF ON -SITE SIDEWALKS 8,712 SF ON -SITE GRAVEL DRIVE 6,970 SF OFF -SITE ASPHALTBLDG 6,534 SF PERVIOUS (GRASSED) AREAS. 98.444 SF 212,137 SF "C" VALUE 1 5"_STORM RUNOFF 0.95 2,380 FT' 0.90 1,519 FT' 0.90 6,518 FT' 0.90 980 FT' 0.80 697 FT' 0.95 776 FT' 4,_5 1,846 FT' C=0.55 TOTAL 1.5" STORM VOLUME = 14.716 FT' t 0� WAT Michael F. Easley, Governor Q William G. Ross Jr. Secretary North Carolina Department of Environment and Natural kesources OL— Alan W. Klimek, P.E.,Director p .r Division of Water Quality Coleen H. Sullins, Deputy Director Division of Water Quality FAX COVER SHEET Date: May 28, 2004 To: Joe Avolis, P.E. Company: Avolis Engineering FAX #: 252-633-6507 No. of Pages: 1 From: Linda Lewis Ao� Water Quality Section - Stormwater FAX # 910-350-2004 Phone # 910-395-3900 DWQ Stormwater Project Number: SW8 010431 Modification Project Name: BEQ Phipps Road MESSAGE: Dear Joe: l promised Jack Daft I would review this application this morning, however, several emergencies arose that took my time. I have started the review, but will have to finish it on Tuesday, or maybe even later. I am involved in an injunction action that will require a lot of my time over the holiday weekend till June 3. Please be patient, and have a good holiday. P.S. Please convey this message to Mr. Daft. Thanks. RSSlarl: S:IWQSIST0RMWATIADDINF0120041010431.may04 N. C. Division of Water Quality 127 Cardinal Drive Extension Wilmington Regional Office Wilmington, NC 28405 (910) 395-3900 (910) 350-2004 Fax Customer Service 1 800 623-7748 P. 1 COMMUNICATION RESULT REPORT ( MAY.28.2004 11:38AM ) FILE MODE - - 128MEMORY TX �.,T7I NCDENR WIRO OPTION ADDRESS (GROUP) /RES?LT PAGE -------------------------------------------------------------------------- 8-2526356507 OK P. 1i1 ---------------------------------------- REASON FOR ERROR E-1) HANG UP OR LINE FAIL E-3) NO ANSWER E-2) BUSY E-4) NO FACSIMILE CONNECTION 0� \N'A P4 Michael F, Easley, Governor Q William G. Ross Jr. Secretary 6-North Carolina Department of Environment and Natural resources COW > Alan W. �lvat Klimek P,E.,Dire ctor Q Division ofer Quality Coleen H. Sullins, De uty Director Division of Water Quality FAX COVER SHEET Date: May 28, 2004 To: Joe Avolis, P.E. Company: Avolls Engineering FAX #: 252-633-6507 No. of Pages: 1 From: Linda Lewis Water Quality Section - Stormwater FAX # 910-350.2004 Phone # 910-395-3900 DWC Stormwator Project Number: SW6 010431 Modification Project Name: BEQ Phipps Road MESSAGE: Dear Joe: I promised Jack Daft I would review this application this morning, however, several emergencies arose that took my time, I have started the review, but will have to finish if on Tuesday, or maybe even later. I am involved in an injunction action that will require a lot of my time over the holiday weekend till June 3. Please be patient, and have a good AVQLIS ENGINEERING, P.A. P.O" Box",16'6'64 1-' New", Bern, North Carolina 28561 • (252) 633-0068 0'tj iir,� i 1 AI i 4: Dn March 25, 2004 Mrs. Linda Lewis NCDENR 127 Cardinal Drive Extension Wilmington, NC 28405 RE: Stornnvater Permit No. SW8 010431 Modification Bachelor Enlisted Quarters Courthouse Bay Marine Corps Base Camp Lejeune, North Carolina Dear Linda: FAPR ECEIVED 1 ZUU4 Enclosed please find three copies of the following in response to your add -info letter of February 13, 2004: • Revised plan sheets proposing a bio-retention area versus an extended detention wetland. + Revised calculations to include the proposed bio-retention area. • Revised Operation and Maintenance Plan (signed and notarized). • Revised Storrnwatcr Management Narrative. As we discussed by telephone on March 24, 2004, we are abandoning the idea of seeking any Stormwater credit for the infiltration trenches. We will leave the trenches in place. Therefore item numbers 2, 3, 6, 8 and 9 of your comments are no longer applicable. 1 tern # 1 Since we are not using the infiltration trenches any longer, our original project drainage plan sheets apply with no modifications. New drawings are provided which show the new bio- retention area planned, cross-section and other details. Item #4 We have proposed a bio-retention area in place of the extended detention wetland. Bio-retention area sizing is provided in the calculations. Bio-retention area planting by a landscape architect is provided on the plans. Item #5 We have designated one location at each of the two infiltration ponds to receive a groundwater monitoring well. We did not receive back the original infiltration basin supplement. ll'you need anything initialed, please fax to me at (252)633-6507. Item #7 A signed and notarized Operation and Maintenance Plan for the proposed bio-retention area is enclosed. Item # 10 The excavated and stabilized areas around the orifices of the two decent structures has been added to the detail. Item # 1 l The flow into the draw -down pipe is controlled by the single I %4" orifice on the end of the pipe. The several 3/4" holes are in the stand pipe and only get water to the primary orifice. The numerous 1/4" holes will alleviate clogging as an issue. I appreciate your assistance with this project and your time on the telephone. Should you have any questions relating to this matter or need any additional information or assistance, please do not hesitate to call. Sincerely, o is, 4sient STORMWATER MANAGEMENT NARRATIVE APR 9, 1 COp4 L'Uy. Bachelor Enlisted Quarters, Courthouse Bay Marine Corps Base Camp Lejeune Stormwater Project No. SW010431 Modification This project proposes modifications to the original storrnwater treatment system which included two separate storrnwater infiltration ponds. The site drains to SA waters. Tthe original ponds were sized to hold the runoff from the one and one-half inch rainfall event. The infiltration ponds have not been infiltrating quickly enough so additional storrnwater treatment measures are proposed. A bio-retention area is proposed to receive discharge from the two existing storrnwater infiltration ponds. Decanting structures are proposed for each of the two existing storrnwater infiltration ponds to draw down the stored runoff within a 5-day period. The bio-retention area is seized in accordance with the NCDENR BMP manual. The bio-retention area is landscaped with plant species as recommended by the BMP manual. The maximum water depth in the bio- retention area will be 9 inches. A catch basin outlet structure is provided to limit the bio- retention area maximum water depth to 9 inches. The catch basin outlets to a pipe equipped with a previously permitted level spreader and vegetative filter. The existing bypass structures for the two existing infiltration ponds will divert runoff around the treatment system in the even of back-to-back design storms. This runoff will still discharge to the previously permitted level spreader and vegetative filter. The two infiltration ponds will decant to the new bio-retention area within a 5-day period so that the infiltration basins will be available to receive additional storrnwater runoff. Stormwater runoff from the site will receive the benefit of having some infiltration capacity in the two infiltration ponds in addition to treatment in the proposed bio-retention area. OPERATION AND MAINTENANCE PLAN RECEIVED Bio-Retention Area Bachelor Enlisted Quarters APR 2 1 2004 Courthouse Bay DwQ Marine Corps Base Camp Lejeune PROD # i W-010431 MW Stormwater Project # SW8 010431 Modification�'-- A bio-retention area is being provided for additional stormwater treatment downstream ofthe two intiltration ponds on the site. The following minimum operation and maintenance criteria will apply at the site. DESCRIPTION METHOD FREQUENCY TIME OF YEAR SOIL Inspect and Repair Erosion Visual Monthly Monthly ORGANIC LAYER Remulch any void area By Hand Whenever Needed Whenever Needed Remove previous mulch layer before By Hand Once every two or Spring applying new layer (optional) three years Any additional mulch added By Hand Once a Year Spring PLANTS Remove and replacement of all dead See Planting Twice a Year 3/15 to 4130 and and diseased vegetation considered Specifications 10/1 to 1 1/30 beyond treatment Treat all diseased trees and shrubs Mechanical or NIA Varies, but will By Hand depend on insect or disease infestation Watering plant material shall take By I -land Immediately after N/A place at the end of each day for completion of project fourteen consecutive days and after planting has been completed Replacement of support stakes By Hand Once a Year Only remove stakes in the spring Replace any deficient stakes or wires By Hand Whenever Needed Whenever Needed Removal of plant litter and other trash By Hand Whenever Needed Whenever Needed which may clog the bypass outlet GUIDELINES Planting Soil Urban plant communities tend to become very acidic due to precipitation as well as the influences of stormwater runoff. For this reason, it is recommended that the application of an alkaline substance, such as limestone, be considered once or INvice a year. Testing of the pH of the organic laver and soil should precede the limestone application to determine the amount of limestone required. Soil testing_ should be conducted annually so that the accumulation of toxins and heavy metals can be detected or prevented. Over a period of time, heavy metals and other toxic substances Nvill tend to accumulate in the soil and the plants. Data from other environs such as forest buffers and Grass swales suggest accumulation of toxins and heavy metals within five years of installation. However, there is no methodology to estimate the level of toxic materials in the bio-retention areas since runoff, soil and plant characteristics will vary from site to site. As the toxic substances accumulate, the plant biological functions may become impaired, and the plant may experience dwarfed growth followed by mortality. The biota within the soil can also perish and the natural soil chemistry may be altered. The preventative measures would include the removal of the contaminated soil. In some cases, removal and disposal of the entire soil base, as well as the plant material, may be required. ?. Mulch Bio-retention areas should be mulched once the planting of trees and shrubs has occurred. Am.- around cover specified as plugs may be installed once the area has been mulched. Ground cover established by seeding and/or consisting of grass should not be covered with mulch. r 0 o B.D. Tina. CDR/CECiUSN Date 1. Alice Bonnette , a Notary Public of the County of Onslow ,State of North Carolina ,hereby certifv that B.D.Pina appeared before me this day and being duly sworn acknowledge that the above form was executed by him. N' itness my hand and notarial seal, this 0 day of 2004. Notary My commission expirest%�'u,r� AVOLIS ENGINEERING, P.A. —�i P.O. Box 15564 • New Bern, North Carolina 28561 • (252) 633-0068 Via: fax (910)350-2004 1 � March 8, 2004 ��'� 0 Mrs. Linda Lewis NC Division of' Water Quality Wilmington Regional Office 127 Cardinal Drive Extension iJ l V Wilmington, NC 28405 RE: Stormwater Permit No. SW8 010431 Modification Bachelor Enlisted Quarter Courthouse Bay, Onslow County A Project No. 0 1112 Dear Linda: In order to respond to your request for additional information for the above -referenced project, it is requested that a time extension be provided from March 13, 2004 to March 31, 2004. 1 would alos like to be able to talk with you via telephone regarding the acceptability of being able to use a bio-retention system for this site. Your assistance with this matter is appreciated. Should you have any questions relating to this matter, please do not hesitate to call. Sincerely, cc: Applegate Architects OF WArF9 Michael F. Easley, Governor p William G. Ross Jr., Secretary 4 7 North Carolina Department of Environment and Natural Resources Alan W. Klimek, P.E.,Director p Division of Water Quality Coleen H. Sullins, Deputy Director Division of Water Quality February 13, 2004 Commander B.D. Pina, CDRICECIUSN Marine Corps Base 1005 Michael Road Camp Lejeune, NC 28542 Subject: Request for Additional Information Stormwater Project No. SW8 010431 Mod. Bachelor Enlisted Quarters Courthouse Bay Onslow County Dear Cdr. Pina: The Wilmington Regional Office received a Stormwater Management Permit Application for Bachelor Enlisted Quarters Courthouse Bay on December 1, 2003. A preliminary review of that information has determined that the application is not complete. The following information is needed to continue the stormwater review: The submitted drawings do not contain a sufficient level of detail to act as the modified plans. Sheet SWM-2 is a faded, partial copy of the approved sheet C-104, the grading plan. I am unable to replace C-104 with SWM-2 since the grading has been altered and not all of the project is shown on that sheet. In order for the Division to maintain a complete understanding of what has been permitted, it is imperative that the new drawings be able to replace existing drawings. Please provide an exact copy of all of C-104 with the appropriate revisions. 2. You are showing four separate runs of infiltration trench, therefore, there should be 4 infiltration supplement forms. Only two have been submitted. 3. Please delineate the single drainage area for each of the four trenches shown. The section arrows shown are not enough to convey this information. 4. The BMP Manual for extended detention wetlands requires a 2-5 day drawdown, which will not meet the SA classification design criteria for an offline system. Perhaps bio-retention is more of what you had in mind, since it is an off-line system like infiltration. Please provide sealed, bio- retention sizing calculations. Design requirements are found in Chapter 4 of the Best Management Practices Manual. Simply stating the area and volume provided in the bio-retention area is not sufficient. You must calculate the minimum design requirements based on the criteria described in Chapter 4 of the BMP Manual. Also, submission under the alternative bio-retention option requires a planting plan to be prepared by a licensed professional. N. C. Division of Water Quality 127 Cardinal Drive Extension (910) 395-3900 Wilmington Regional Office Wilmington, NC 28405 (910) 350-2004 Fax Customer Service 1 800 623-7748 ITAN NCDENR Cdr. Pina February 13, 2004 Stormwater Application No. SW8 010431 Mod. 5. Since the original basins are not infiltrating as designed, the rules allow the Division the flexibility to require monitoring wells to determine the seasonal groundwater fluctuations. Please initial item (s) on the supplement, and provide well locations on the plans in the vicinity of the existing infiltration basins. 6. In order to allow the lowering of the bypass weirs in the infiltration ponds, please provide verification that the trench bottom elevations are at least 2' above the Seasonal High Water Table. If the trenches cannot meet this, then we are permitting a similar situation as currently exists, which is not what the Division wants to do. If the bottoms vary as the slope of the swale above it, please make sure the revised plans show the inverts at ebch end. 7. Please provide a signed and notarized Operation and maintenance plan - for the bio-retention area. 8. Please initial item (p) on the supplement. The trench detail indicates that geotextile fabric is provided around the trench. 9. Item (u) on the supplement must be initialed. Normal Operation and Maintenance of the trench system will not be possible without knowing the cleanout benchmark. 10. Please show the excavated area around the orifice of the decant structure. This is necessary in order to prevent clogging. 11. The consultant has determined the orifice size based on a 5 day drawdown, but the decant structure shows several 3/4" holes in addition to the 1-1/4" or It does not appear that the flow through these orifices been considered in regard to draw down time. Please note that this request for additional information is in response to a preliminary review. The requested information should be received by this Office prior to March 13, 2004, 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 mail or fax your request for a time extension to the Division at the address and fax number at the bottom of this letter. The request must indicate the date by which you expect to submit the required information. The Division is allowed 90 days from the receipt of a completed application to issue the permit. The construction of any impervious surfaces, other than a construction entrance under an approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject to enforcement action pursuant to NCGS 143-215.6A. Page 2 of 3 Cdr. Pina February 13, 2004 Stormwater Application No. SW8 010431 Mod. Please reference the State assigned project number on all correspondence. Any original documents that need to be revised have been sent to the engineer or agent. All original documents must be returned or new originals must be provided. Copies are not acceptable. If you have any questions concerning this matter please feel free to call me at (910) 395-3900. Sincerely, r Linda Lewis Environmental Engineer RSSlarl: S:IWQSISTORMWATIADDINFO120041010431.feb04 cc: Joe Avolis, P.E., Avolis Engineering Linda Lewis I Page 3 of 3 LETTER OF TRANSMITTAL Data: To: Address: D E V IZ _ 1 Z7 Ci42 '9 1Iy 4 Z -. _rJ� w i z- wt t -rvo rq • •zg 4o S Pro=ect No.: Project Name: GL22Gr✓7 we are sending you n the following items: copy to sign remarks attached O under separate cover via O shop drawings O copy of fetter O prints O change order O copies Applegate architects POST OFFICE ;BOX 399 NEW BERN NC 28563 } ore I �..t_w Fl l 12 2?03 ;! Ali no. date description iz samples O specifications O plans O these are transmitted for bids due 19.__..___ O these are prints returned after loan to us O it encrosures are not as notea. Kmory noury us at once. ti } z a a C Q G Z O N O cf�M UCz X _ h za`V'm� O J 6 , J am07 F- U z V wza0 to 5 cn Y a N z O All `i 0 }f-o �O0 0 N 6 J J 0 O CC 0 O ti Lil r u O Ln 0 0 M Ln D ru N Ir O O D OFFICE USE ONLY Date Received Fee Paid Permit Number 114W State of North Carolina Department of Environment and Natural Resources J �J Division of Water QualityEC Z�Q3 STORMWATER MANAGEMENT PERMIT APPLICATION EU$M�,�—'_"_ This form may be photocopied for use as an original I. GENERAL INFORMATION 1. Applicants name (specify the name of the corporation, individual. etc. who owns the project): Commanding General, Marine Corps Base, Camp Lejeune, North Carolina 2. Print Owner/Signing Official's name and title (person Iegally responsible for facility and compliance): BD Pina, CDR/CEC/USN 3. .Mailing Address for person iisted in item 2 above: Commanding General (Code 405) /UU S Hlch2eI eb2c _ City: MCB Camp Lejeune T - - - State, NC zip. 28542-0004 Telephone Number: ( 910 i - 451-3238 4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): Bachelor Enlisted Quarters Cct,# 4F1yq-� f3� ggmp Lejeune North Carolina 5. Location of Project (street address): Jackson Street City: Cam Lejeune County: Onslow 6. Directions to project (from nearest major intersection): From the intersection of Marines Road & NC highway 172 at the entrance to Courthouse Bay_._ South 1500' on Marines Road. East on Grace Lane 1400'. Site is on the right. 7. Latitude: 34' - 35-183' N Longitude: 77' - 21 .966' W of project 8. Contact person who can answer questions about the project: Name: Joseph C. Avolis, P.E. Telephone Number: 252 633-0068 II. PERMIT INFORMATION: 1. Specify whether project is (check one): New Renewal X Modification Form SWU-101 Version 3.99 Page 1 of 4 2. If this application is being submitted as the result of a renewal or modification to an existing permit, list the existing permit number Sw8 010431 and its issue date (if known) 3. Specify the type of project (check one): Low Density X High Density Redevelop General Permit Other 4. Additional Project Requirements (check applicable blanks): �CAMA Major X Sedimentation/Erosion Control �404/401 Permit _ _ NPDES Stormwater Information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748. III. PROJECT INFORMATION 1. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative (one to two pages) describing stormwater management for the project, Stormwater runoff on the site is currently treated in two existing infiltration ponds that are�not drying as intended. This project proposes a constructed wetland to recieve decanted discharge from the two ponds. 2. Stormwater runoff from this project drains to the White Oak 3. Total Project Area: 9.06 acres 4. Project Built Upon Area: 5. How many drainage areas does the project have? 2 River basin. 58 0/ 6. Complete the following information for each drainage area. If there are more than two drainage areas in the project, attach an additional sheet with the information for each area provided in the same format as below. Basin Information Drainage Area 1 Drainage Area 2 Receiving Stream Name Courthouse Bay Courthouse Bay Receiving Stream Class SA SA Drainage Area 182,516 SF 212,137 SF Existing Impervious` Area 25,700 SF 6,534 SF Proposed Impervious`Area 115,434 SF 113,693 SF % Impervious` Area'(total) 77. 3% 56. 7% Impervious* Surface Area Drainage Area I Drainage Area 2 On -site Buildings 20,909 SF 20,038 SF On -site Streets 3,049 SF 13,504 SF On -site Parking 511401 SF 57,'935 SF On -site Sidewalks 10 454 SF 8 712 SF Other on -site 3,920 SF 6,970 SF _YIS I" J 25,700 SF 6,534 SF Total: 115,433 SF Total: 113,693 SF Impervious area is defined as the built upon area Including, but not limited to, buildings, roads, parking areas, sidewalks, gravel areas, etc. Fonn SWU-101 Version 3.99 Page 2 of 4 7. How was the off -site impervious area listed above derived? - it"F— V 1517- { ' [0F4;9AJrt\{C _ 5uRv1s{, IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS The following italicized deed restrictions and protective covenants are required to be recorded for all subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table listing each lot number, size and the allowable built -upon area for each lot must be provided ds an attachment. 1. The following covenants are intended to ensure ongoing compliance with state stormwater management permit number as issued by the Division of Water Quality. These covenants may not be changed or deleted without the consent of the State. 2. No more than _ 229,127 — square feet of any lot shall be covered by structures or impervious materials. Impervious materials include asphalt, gravel, concrete, brick, stone, slate or similar material but do not include wood decking or the water surface of swimming pools. 3. 5wales shall not be filled in, piped, or altered except as necessary to provide driveway crossings. 4. Built -upon area in excess of the permitted amount requires a state stormwater management permit modification prior to construction. 5. All permitted runoff frorn outparcels or future development shall be directed into the permitted stormwater control system. These connections to the stormwater control system shall be performed in a manner that maintains the integrity and performance of the system as permitted. By your signature below, you certify that the recorded deed restrictions and protective covenants for this project shall include all the applicable items required above, 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 State, and that they will be recorded prior to the sale of any lot. V. SUPPLEMENT FORMS The applicable state stormwater management permit supplement form(s) listed below must be submitted for each BMP specified for this project. Contact the Stormwater and General Permits Unit at (919) 733-5083 for the status and availability of these forms. Form SWU-102 Wet Detention Basin Supplement Form SWU-103 Infiltration Basin Supplement Form SWU-104 Low Density Supplement Form SWU-105 Curb Outlet System Supplement Form SWU-106 Off -Site System Supplement Form SWU-107 Underground Infiltration Trench Supplement Form SWU-108 Neuse River Basin Supplement Form SWU-109 Innovative Best Management Practice Supplement Form S 1X`U-101 Version 3.99 Page 3 of 4 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, The complete application package should be submitted to the appropriate DWQ Regional Office. Please indicate that you have provided the following required information by initialing in the space provided next to each item. • Original and one copy of the Stormwater Management Permit Application Form • One copy of the applicable Supplement Form(s) for each BMP • Permit application processing fee of $420 (payable to NCDENR) • Detailed narrative description of stormwater treatment/management • Two copies of plans and specifications, including: Development/Project name Engineer and firm -Legend North arrow Scale Revision number & date Mean high water line Dimensioned property/project boundary Location map with named streets or NCSR numbers Original contours, proposed contours, spot elevations, finished floor elevations Details of roads, drainage features, collection systems, and stormwater control measures Wetlands delineated, or a note on plans that none exist Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations Drainage areas delineated Vegetated buffers (where required) VII. AGENT AUTHORIZATION If you wish to designate authority to another individual or firm so that they may provide information on your behalf, please complete this section. Designated agent (individual or firm): Avolis Engineering, P.A. Mailing Address: P.O. Box 15564 City: New Bern Phone: ( 252 ) 633-0068 VIII. APPLICANT'S CERTIFICATION State: NC Zip: 28561 Fax: ( 252 ) 633-6507 1, (print or type name of person listed in General Information, item Z) BD Pina, CDR/.CBC/USN certify that the information included on this permit application form is, to the best of my knowledge, correct and that the project will be constructed in conformance with the approved plans, that the required deed restrictions and protective covenants will be corded, and that the proposed project complies with the requirements of 15A NCAC 2H .1000. � } Sig MOM.M, Form SWU-101 Version 3.99 Page 4 of 4 Date: U �! 4 P. 1 FILE NODE OPTION 408- MEMORY TX COMMUNICATION RESULT REPORT ( NOV.25.2003 12.47PM ) TTI NCDENR WIRO ADDRESS (GROUP) RESULT PAGE --------------------------------------------------------- ----------- e-2526336793 OK P. 1/1 - REASON FOR ERROR E-1) HANG UP OR LINE FAIL E-3) NO ANSWER E-2) BUSY E-4) NO FACSIMILE CONNECTION C� WATER Michael F. Easley, Governor 112 4) William G. Ross Jr. Secretary North Carolina Department of Environment and Natural resources Alan W, Klimek PE.,Director p Division ofWiter Quality Coleen H. Sullins, De� puty Director Division of Water Quality FAX COVER SHEET Date: November 25, 2003 To: Jack Daft, RLA Company: Applegate Architects FAX #: 252.633-6793 No. of Pages: 1 From: Linda Lewis Water Quality Section - Stormwater FAX ## 910-360-2004 Phone # 910-395-3900 DWQ Stormwater Project Number: SW8 010431 Project Name: BEQ N62470-99-R-9127 MESSAGE: Dear Jack: Thanks for the original signature on the supplements, but I also need an original signature for the application, which was also requested on November 14, 2003. Have a good Thanksgiving) Q� WATFR Michael F. Easley, Governor Q William G. Ross Jr., Secretary vNorth Carolina Department of Environment and Natural Resources Alan W. Klimek, P.E.,Director .� Division of Water Quality Coleen H. Sullins, Deputy Director Division of Water Quality FAX COVER SHEET Date: November 25, 2003 To: Jack Daft, RLA Company: Applegate Architects FAX #: 252-633-6793 No. of Pages: 1 AO� From: Linda Lewis Water Quality Section - Stormwater FAX # 910-350-2004 Phone # 910-395-3900 DWQ Stormwater Project Number: SW8 010431 Project Name: BEQ N62470-99-R-9127 MESSAGE: Dear Jack: Thanks for the original signature on the supplements, but I also need an original signature for the application, which was also requested on November 14, 2003. Have a good Thanksgiving! Linda RSSlarl: S:IWQSISTORMWATIADDINF0120031010431-2mod. nov03 N. C. Division of Water Quality 127 Cardinal Drive Extension (910) 395-3900 Customer Service Aw Wilmington Regional Office Wilmington, NC 28405 (910) 350-2004 Fax 1 800 623-7748 NOE". LETTER OF TRANSMITTAL Date: To: Address: p E fur & — .0 lA> 11L.7.C-A w t fL 1 4 IT o to Project No.: Project !Name: V N K42'+70-ia-2•'IIz7 we are sending you the loilowing items: attached o under separate cover via o shop drawings O copy of letter prints O change order O copies samples O specifications o plans o O no. date description these are transmitted for bids due 19 O these are prints returned after loan to us O applegate architects POST OFFICE BOX 399 NEW BERN NC 28563 copy to signed a, tf enclosures are not as noted, kindly notify us at once. remarks _ L,►.] G'L. 0 4i is [� i �j d KJ !n 1I✓,4 2_ I T iiA0vQ% L 14 a D -g�is?J T dTZI<R L FS uT I r1A 5 w iLaNG. -- Z -I - ") 3. :i, LETTER OF TRANSMITTAL Cv IQ� 21C Date: To;12&---LLW- Y Address: ' 'P«.% 1-" «m IPI*t A,. W ■%. a l e ate WIL.-A WGTarl �c- Z8gko� E" g Project No.: 7� 71 Project Name: Z+: -A f.n architects POST OFFICE BOX 399 NEW BERN NC 28563 S9 J goo EON we are sending you attached ' V under separate cover via O the following items: shop drawings O samples O copy of fetter O specifications O copy to signed remarks prints gy change order O copies .S plans p, Gp4.av"q&pe4`r no. date description these are transmitted for bids duo 19- O these are prints retumed after loan to us O tiZ LAI, _ 2003 L enclosures are not as noted, kindly notify us at once. 3 <41'WA.1 Af'.O ;i :.:.r��� ..tit' -lt=z;•�'.'�'�.:�• 1�.•t•, O� W A T �9QG � r Michael F. Easley, Governor William G. Ross, Jr., Secretary North Carolina Department of Environment and Natural Resources FAX COVER SHEET Date: September 30, 2004 To: Jack Daft Company: Applegate Architectects FAX #: 252-633-6793 Alan W. Klimek, P.E. Director Division of Water Quality No. of Pages: 1 From: Linda Lewis Water Quality Section - Stormwater FAX # 910-350-2004 Phone # 910-395-3900 DWQ Stormwater Project Number: SW8 010431 Project Name: BEQ N62470-99-R-9127 MESSAGE: Jack: The Division has carefully considered your request to eliminate the permitted infiltration system and convert the area to bio-retention. A permit modification was received on December 1, 2003, after the infiltration basin had failed to function adequately in accord with the drawdown requirements of the stormwater rules. The Division is of the opinion that simply replacing the infiltration system with the bio-retention system will not improve the situation. We recommend continuing with the modification as submitted, with the infiltration basins overflowing into newly constructed bio-retention areas. If you have any questions, please do not hesitate to call Rick Shiver at (910) 395- 3900. RSSlarl: S:IWQSISTORMWATIADDINF0120041010431.sep04 M. Kevin Avolis, P.E., Avolis Engineering (FAX 252-633-6507) I North Carolina Division of Water Quality 127 Cardinal Drive Extension Phone (910) 395-3900 Customer Service 1-877-623-6748 Wilmington Regional Office Wilmington, NC 28405-3845 FAX (910) 350-2004 Internet: h2o.enr.state.nc.us One An Equal OpportunitylAffirmafive Action Employer — 50% Recycledl10% Post Consumer Paper XhCarolina turallty FILE MODE — 209 MEMORYTX P. 1 COMMUNICATION RESULT REPORT ( SEP.30.2004 10:02AM ) TTI NCDENR WIRO OPTION ADDRESS (GROUP) RESULT PAGE ----------------___----------------------------------------------------------- 8-2526336507 OK P. 1/1 REASON FOR ERROR E-1) HANG UP OR LINE FAIL E-3) NO ANSWER E-2) BUSY E-4) NO FACSIMILE CONNECTION O�QF 1NAT ,4 � Michael F. Easley, Govemar � p William G. Ross, Jr,, Secretary f- North Carolina Department of Envtronment and Natural Resources p Alan W. Kllmek, P.E. Director Division of Water Quality FAX OVER SHEET Date: September 30, 2004 To: Jack Daft Company: Applegate Archit etects FAX #: 252-633-6793 No. of Pages: 1 From: Linda Lewis Water Quality Section - Stormwater FAX # 910-360-2004 Phone # 910-395-3900 DWQ Stormwater Project Number: SWS 010431 Project Name: BEQ N62470-99-R-9127 MESSAGE: Jack; The Division has carefully considered your request to eliminate the permitted infiltration system and convert the area to bio-retention. A permit modification was received on December 1, 2003, after the infiltration basin had failed to function adequately in accord with the drawdown requirements of the stormwater rules, P. 1 FILE MODE_____ 208 MEMORY TX COMMUNICATION RESULT REPORT ( SEP.30.2004 10:01AM ) TTI NCDENR WIRO OPTION i —� ADDRESS (GROUP) ---------------RESULT PAGE -- ---------------------- —8-2526336793 --�--------------- OKP. 1/1 REASON FOR ERROR E-1) HANG UP OR LINE FAIL E-3) NO ANSWER ��� war�RQ ,4 D Y I E-2) BUSY E-4) NO FACSIMILE CONNECTION Michael F. Easley, Governor William G. Ross, Jr.. Secretary North Carolina department of Environment and Natural Resources Alan W. Klimek, P,E, Director Division of Water Quality FAX COVER SHEET Date: September 30, 2004 To: Jack Daft Company: Applegate Architectects FAX #: 252-633-5793 No, of Pages: 1 From: Linda Lewis Water Quality Section - Stormwater FAX # 910-350-2004 Phone # 910-395-3900 DWQ Stormwater Protect Number: SW$ 010431 Protect Name: BEQ N62470-99-R-9127 MESSAGE: Jack: The Division has carefully considered your request to eliminate the permitted infiltration system and convert the area to bio-retention. A perm4 modification was received on December 1, 2003, after the infiltration basin had failed to function adequately in accord with the drawdown requirements of the storrnwater rules. P. 1 1P FILE MODE 135--MEMORY TX * * * COMMUNICATION RESULT REPORT ( NOV.14.2003 OPTION REASON FOR ERROR E-1) HANG UP OR LINE FAIL E-3) NO ANSWER ADDRESS (GROUP) - 02526336793 5:41PM ) TTI RESULT ----------- OK NCDENR WIRO PAGE ---------- - P. 11 E-2) BUSY E-4) NO FACSIMILE CONNECTION WA11, Michael F. Easley, Governor William G. Ross Jr. Secretary North Carolina Department of Environment and Natural resources Alan W. Nimok P.E,�Director Division ofW ater Quality Caleen H, Sullins, Deputy Director Division of Water Quality FAX COVER SHEET Date: November 14, 2003 To: .lack Daft, RLA Company: Applegate Architects FAX #; 252-633-6793 No. of Pages: 1 From: Linda Lewis Water Quality Section - Stormwater FAX # 910.,350-2004 Phone # 910-395-3900 DWQ Stormwater Project Number: SW8 010431 Project Name: SEQ N62470-99-R-9127 MESSAGE: Dear Jack: I am unable to accept a photocopied signature on the application and supplement. Please submit originals only. Thanks. OF V A TFR Michael F. Easley, Governor O� p� William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Alan W. Klimek, P.E.,Director p Division of Water Quality Coleen H. Sullins, Deputy Director Division of Water Quality FAX COVER SHEET Date: November 14, 2003 To: Jack Daft, RLA Company: Applegate Architects FAX #: 252-633-6793 No. of Pages: 1 From: Linda Lewis Water Quality Section - Stormwater FAX # 910-350-2004 Phone # 910-395-3900 DWQ Stormwater Project Number: SW8 010431 Project Name: BEQ N62470-99-R-9127 MESSAGE: Dear Jack: I am unable to accept a photocopied signature on the application and supplement. Please submit originals only. Thanks. RSSlarl: S:IWQSISTORMWATIADDINF0120031010431 mod.nov03 N. C. Division of Water Quality Wilmington Regional Office 127 Cardinal Drive Extension Wilmington, NC 28405 (910)395-3900 (910)350-2004 Fax Customer service 1 800 623-7748 ;I4CUE-NR Status Report - BBQ Le.leune Subject: Status Report - BE LeJeune ��� J P Q 0 From: "Steven Kent" <skent@applegatearchitects.com> Date: Thu, 9 Oct 2003 09:51:15 -0400 To: "Linda Lewis" <Linda.Lew ls@ncmall.net>, "Tommy Hayes" <cconstructionhayes@earthlink.net>, <ashtonbt@lejeune.usmc.mil>, "Jack Daft" <jdaft@applegatearch itects.com> Ms. Lewis - We have completed the topogarphic survey and soils investigation. We have also completed preliminary design and are developing final calculations and are revising the permit application. The hurricane has delayed our schedule. We plan to submit drawings -and calculations by October 30th. Jack Daft, RLA.. Steven J. Kent, AIA Associate Senior Project Manager Applegate Architects P.O. Box 399 New Bern, NC 28563 Ph:252.633.5603 Fx:252.633.6793 skent(cD-applegatearchitects.com www.applegatearchitects.com Established 1978 - Celebrating 25 years 1 of 1 10/9/2003 2:54 PM BEQ Alternative Subject: BEQ Alternative From: Linda Lewis <Linda.Lewis @ncmai1.net> Date: Fri, 05 Sep 2003 12:34:51 -0400 To: Ashton GS12 Brynn T <AshtonBT@lejeune.usmc.mil>, Joe & Kevin Avolis <avoliseng@always-online.com> Dear Brynn and Joe: I received comments back from Raleigh regarding use of a constructed wetland. As I expected, it is an allowable option butonly if it does not discharge in response to the 1.5" design storm. That means that when it rains, all the runoff from the first 1.5" is contained and stays in the wetland and is not discharged except via infiltration through the bottom. If it rains more than 1.5", only the excess is allowed to bypass through a 50' vegetated filter. Linda 1 of 1 9/5/2003 12:35 PM BEQ_ Stormwater Subject: BEQ Stormwater From: Ashton GS12 Brynn T <AshtonBT@lejeune.usmc.mil> Date: Thu, 4 Sep 2003 16:06:22 -0400 To: "'linda.lewis@ncmail.net"' <1inda.lewis@ncmai1.net> CC: Marshburn GS 13 David V <MarshburnDV@lejeune.efdlant. navfac.navy. miI>, Paul GS 13 Neal N <PaulNN@lejeune.usmc.mil> Linda I received your voicemail from yesterday. We have instructed Joe Avolis to complete a permit modification for the various infiltration alterations that Jack instituted at the BEQ site. He will have that to you next week. However, we would also like Joe to design any additional changes to the permit that are required to provide acceptable treatment of stormwater. Joe has recommended two possible solutions: 1) creation of a wetlands downstream of the outfall of the existing infiltration basin, and 2) converting the existing infiltration basin into a wet detention pond and pumping the outfall effluent to an area that is classified as SC. Joe thought that you wanted to check with Raleigh to get more information on these options, prior to his initiating the design. Our preference is to create a wetlands, since we would like to avoid the need for pumps. If this is definitely a non --starter, we will have the consultant initiate alternative 2. As Vann Marshburn mentioned in the conference call in July, the contractor is very anxious to resolve this problem, since we have with held a large amount of money until all issues are resolved. Brynn Ashton Environmental Engineer Environmental Management Division Marine Corps Base, Camp Lejeune, NC Phone: (910) 451-9385 (DSN 751) e-mail address: ashtonbt@leleune.usmc.mil 1 of 2 9/5/2003 12:37 PM DEPARTMENT OF THE NAVY r RESIDENT OFFICER IN CHARGE OF CONSTRUCTION I NAVAL FACILITIES ENGINEERING COMMAND CONTRACTS 1005 MICHAEL ROAD CAMP LEJEUNE NC 28547-2521 C Construction Company, Inc. P. 0. Box 8270 Jacksonville, NC 28541 Re: N52470-99-C-9127/AWD - BEQ, COURTHOUSE BAY Gentlemen: TEL. (9101451-25BiX2 DSN. 751-25B1 IN REPLY REF ER TO: Ctrl No. 2977 N4247099C91271AWD 18 MAR 2003 The Sedimentation Inspection Report documenting disrepancies found 12 March 03 by state inspectors is attached for your review. Specifically, the small pond and the area below the small pond need additional ground cover. The silt fence downslope of both small and large ponds needs to be cleaned out. The large pond does not have sufficient capacity. The drainage on site has been an issue of concern for many months. Please notify the ROICC in writing on how and when these disrepancies will be corrected. Your continued cooperation toward completion of this contract is appreciated. Sincerely, Tabitha Pierzchala LT, CEC, USN Assistant Resident Officer In Charge of Construction Copy to: Vann Marshburn Enclosure: Sedimentation Inspection Report Quality Performance... Qualify Results # SEDIMENTATION INSPECTION REPORT - NORTH CAROLINA. DEPAR.T&ffl iT OF-ENHJ?ONhBNT ANTI NA7 UPaL RESOURCES — *` IlND QU�iL1TY5ECTI0N,Jr27 Cardi>Fal Drive, ssr., jfrimingtor�, N . 28d05-3843 (91t7J 395-39t70, r aj f , County `d 'i 1 i ; Project: �f / / /f` (, I iC l rt_ i River Basin {u � :Person Financial) Rcsponsiple:l ',_ 1c i�"" ' L_ Project # .Address: r,�; ,� 1i;1 l� t.1L. +� r�� I. Project Location!; - ( " .. 'i i k� / . Pictures: No 01" Yes ❑ J Prints Q Slides ❑ " Digital- -Cl : 2_ Weather and Sod Conditions I r' 4- 4 .l ?.a 3. Is',sitcxurrently.under notice of violation? Yes" 0 No lIq- 4. Is the -site in compliance with the S.P.C.A. and.the-rules? - - Yes, Cl - No Cp- If no, check violations:below: 5. Violations: ❑ a: 'No, approved plan,.G.S.,113A-5.7(4);and-l5A-NCAGD4B.0I07(c) 0-g.- Inadequate, buffer zone, G.S. 113A-57(1) ❑:b.. Failure to:follow approved plan, G.S. 113A-61.1 ❑ h. Graded slopes and fills too steep, G.S. 113A-57(2) ❑ c: Tailure,to submit revised.plan, G.S. 113A-54.1(b) and nor I 5A NCAC 04&0124 (d) ,,-fSA NCAC 04$.0118(a) Cd'f nprotected exposed slopes, G.S. 1 I3A-57(2) _02"d. Failure to provide adequate groundcover, G.S. 113A-57(3) and f�failure to maintain erosion control measures, 15-A-NCAC 04B.01.07(b)-or ISA-NCAC 04B:0124(e) ISA NCAC 04B.0I 13- ❑ c. Insufficient measures to retain sediment on site, G.S. 113A-57(3) ❑ k. Other(describe).. ❑ f. Failure to take all reasonable meastues,.ISA NGAC 048:0105.:.... _' 6. Potential:NPDE$;Perinit_VjoIation�es i } Na�1Describe 7. Has sedimentation damage occurred since last inspection? `Yes❑ If yes, where? (check all that apply): No Q�-- Lake/natural watercourse on the tract 0.._. Lakeinatural-wawcourse-eff-the-tract--O--.-Other properly. ❑ Description: • ' ' Degnt:c of damage: Slight ❑ _Moderate ❑ Severe ❑ . onrad a wt ame { Yv 1 { rt?�t r �f..tiJ Iytle InspectionReport::gir+emCl r' or senr:L7 to Person Frraricially Rcapoiistble ' " " Date givert/scnt i 9=. Corrective: acnonsmeeded.' Wahl rill VV 1a. comtrtonts: ..rf �(_ i re [}� 1�t ,,, n � �'.�f' -f �^} U �? t� i r' ` �-! i•. � r� �-!'„. : � �t � I ± r`.' l.. �� � 'U �! �' .',Rtportby' - v.G C i ,I� / Y ;f ai1V _ _ Qthers.present r .:VL Date:of.Inspecrion: �`/ 1:�✓'� Time arriving at site:_ �! ! �,` �� Time leaving site: /'' 4 Alf"q COt+fSrSWrM CVNPANY INCOHPOOATED I" PLEASE REPLY TO: P.O. Box 159 Jacksonville, NC 28541 919.347.4160 FAX 919 . 347 . 2107 Resident Officer in Charge of Construction NAVFACENGCOM Contracts 1005 Michael Road Camp Lejeurie, NC 28547-2521 Attn: LT. Tabitha Pierzchala Dear Lt. Pierzchala: March 25, 2003 Re: Bachelor Enlisted Quarters Contract No. N62470-99-C-9127 MCB, Camp Lejeune, NC 3212 Chandler Highway Tyler, TX 75702 903 • 597 • 1500 We are in receipt of your letter dated 18 March 2003 concerning a Sedimentation Inspection Report on y the above referenced project. On or before March 26'h all of the erosion items will have been completed. In response to the comment relative to the large pond not having sufficient capacity we are contacting the state to find out the meaning of this comment. The following is a brief history of both of these ponds and our efforts in complying with the requirements of the contract and the state on a marginal site. 1 • We employed a licensed North Carolina professional to design these ponds in accordance with the requirements of the State of North Carolina. 2. The State of North Carolina reviewed the design and issued a permit for the construction of these ponds as they are presently constructed. 3. Approximately six months ago a verbal comment was made that the ponds were not infiltrating within a period of five days. 4. We at that time requested that the designer of record come back in and review the ponds and provide us with his comments. Mr. Joseph Avalis and Mr. Jack Daft, RLA reviewed the infiltration ponds and had soil samples taken both inside and outside the pond and reported their findings to us. We passed these on to ROICC in our letter dated November 18", 2002. 5. Their findings indicate that we had constructed the ponds in accordance with his design. 6. Subsequent to that report Mr. Vann Marshburn arranged a meeting with the state on site for us to again review the status of the ponds and go over that report with the state. We convened on the site and looked at the ponds and in fact toured the entire site with the state. 7. There was much discussion as to why the ponds did not appear to be infiltrating into the soil over the period of five days. The state person explained that the ponds were to receive the first inch and a half water from the covered area and that it should infiltrate over a period of five days assuming no additional rain or water was added. It was quite obvious to all there that the ponds were not infiltrating at that particular rate. ROICC -- Attn: Lt. Tabitha Pierzchala March 25, 2003 Page 2 8. We then reviewed the remainder of the site with the person from the state and discussed some other measures that we might take as soon as the extremely wet weather that we have had over the last one hundred plus days returned to some norm. 9. Since that meeting we have installed approximately one thousand LF of infiltration trenches around the site and we have installed three smaller ponds located at various places around the site. These should help the two ponds in that they will take a portion of the water from the site in lieu of it going into one of the two ponds. 10. In general the ideal situation for infiltration ponds is that the bottom of the pond be two foot above the water table. On the BEQ site over the last six to eight mouths we have not had a time when the water table anywhere on site was more than about thirty inches below finish grade. This includes the point highest on the site which is next to the office trailer. Regardless of the fact that the designer has attested that we build the ponds according to the design and the state in our last meeting and other conversations have not indicated any different. In fact the state concurred that they believe that we did build them in accordance with the design even though it is not working as it relates to infiltrating the contents of the pond into the soil over a five day period. We have however and in order to assure ourselves and all other parties as to the proper construction of these ponds employed Parker & Associates to review all information as it relates to the ponds, including the original permit and all other information that has been accumulated relative to these ponds. We also wish to comment that no one from the state that I have talked to over the past six to eight months has ever indicated in any way that there was not enough capacity in the ponds. We are asking Parker and Associates to discuss this with the state and make recommendations back to us. We will provide you with their recommendation as soon as they are received. Should you have any questions please feci. free to call me. Sincerely, C CONSTRUCTION CO., INC. To �L. Hayes Vice President of Eastern Office TLH :j cc: Tyler cc: File STORMWATER MANAGEMENT NARRATIVE BACHELOR ENLISTED QUARTERS COURTHOUSE BAY MARINE CORPS BASE CAMP LEJEUNE, NORTH CAROLINA THIS PROJECT CONSISTS OF STORMWATER TREATMENT SYSTEM MODIFICATIONS TO THE TWO COURTHOUSE BAY BEQ INFILTRATION PONDS CONSTRUCTED UNDER DWQ PERMIT #SW8 010431. THE ORIGINAL PROJECT CONSISTED OF TWO MULTI -STORY BEQ QUARTERS AND ASSOCIATED ASPHALT PARKING AREAS. THE ORIGINAL SITE BUILT -UPON AREA OF 58% WILL REMAIN THE SAME. THE 1.5 INCH DESIGN STORM WILL REMAIN THE SAME. THE TWO EXISTING INFILTRATION PONDS HAVE NOT FULLY INFILTRATED FOLLOWING THE 1.5 INCH RAINFALL EVENTS. TO REDUCE THE RUNOFF LOAD ON THE POND, A TOTAL OF 1,240 LINEAR FEET OF 2' x T INFILTRATION TRENCHES WERE EXCAVATED WITHIN THE SHALLOW GRASS PARKING LOT SWALE SYSTEM AT THE FRONT OF THE SITE. THE TRENCHES DO NOT HAVE AN OUTLET DISCHARGE TO EITHER OF THE TWO EXISTING PONDS OR ANY OTHER DRAINAGE POINT. THE INFILTRATION TRENCHES ARE CONSTRUCTED IN SANDY SOIL. THE MODIFICATION ALSO PROPOSES THE EXCAVATION OF A CONSTRUCTED WETLAND DOWNGRADIANT OF THE TWO INFILTRATION PONDS. THE CONSTRUCTED WETLAND WILL PROVIDE ADDITIONAL SURFACE AREA (216% INCREASE) ON THE SITE FOR STORMWATER TREATMENT. ORIFICE DRAW DOWN DEVICES ARE PROPOSED FOR EACH OF THE TWO EXISTING INFILTRATION PONDS. THE STRUCTURES ARE DESIGNED TO DRAIN DOWN EACH OF THE TWO EXISTING PONDS WITHIN A PERIOD OF 5 DAYS. THE CONSTRUCTED WETLAND WILL BE VEGETATED WITH A VARIETY OF WETLAND PLANTINGS. STORMWATER TREATMENT IN THE CONSTRUCTED WETLAND WILL OCCUR BY INFILTRATION, EVAPORATION AND EVAPOTRANSPIRATION. THE EXISTING INFILTRATION PONDS ARE ANTICIPATED TO PERFORM BETTER GIVEN THE REDUCTION IN HYDRAULIC LOADING OFFERED BY THE INFILTRATION TRENCHES AND THE CONSTRUCTED WETLAND. DEPARTMENT OF THE NAVY TR4EPEI0N4: - •Iff OFFICER IN CHARGE OF CONTRACTS 910-451-2581 j RESIDENT OFFICER IN CHARGE OF CONTRACTS FAX 910-451-5899 NAVAL, FACILITIES ENGINEERING COMMAND CONTRACTS IN REPLY REFER TO: 1005 MICHAEL ROAD N62470-99-C-9127 CAMP LEJEUNE, NC 28547-2521 JAX/Al/vm State of North Carolina Department of Environment Health and Natural Resources Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 28405 Attn: Noelle Lutheran oCT � Re: Contract N62470-99-C-9127, Bachelor Enlisted Quarters, Courthouse Bay, Camp Lejeune, North Carolina (Permit SW8 010431) Gentlemen: ° Reference our phone conversation with your Ms.�Noelle Lutheran concerning the construction of the referenced stormwater pond. As discussed, the construction contractor will be cleaning out the pond during the week of 28 October 2002 (weather permitting). Following this procedure the designer will inspect the construction to ensure compliance with the permit. The designer will then provide written documentation as to his findings. Your office will be provided a copy of that letter. If you have any further questions relative to this matter please contact the undersigned at 910- 451-2583 ext.245. Sincerely, 'E 1 0 Vann Marshburn PE e Quality Perfortnance ... Quality Results NC DENR - DIVISON OF WATER QUALITY 0312 WHITE OAK RIVER BASIN 2B .0300 Classification Name of Stream Description Class Date Index No. Cowhead Creek From source to Frenchs Creek SC;NSW 08/01/91 19-24-2 Duck Creek From source to New River SC;NSW 08/01/91 19-25 Whitehurst Creek From source to New River SC;HQW,NSW 08/01/91 19-26 NEW RIVER From a line extending across SA;HQW 06/01/60 19-{27) New River from Grey Point to a point of land approximately 2200 yards downstream from mouth of Duck Creek to Atlantic Ocean; including all unnamed bays, creeks, and other waters except restricted areas # 1 and # 2 described below. Goose Creek From source to New River SC;HQW 06/01/90 19-28 Two Pole Branch From source to New River SC;HQW 08/01/90 19-29 Stones Bay Entire Bay SA;HQW 06/01/56 19-30 Mill Creek From source to Stones Bay SA;HQW 06/01/56 19-30-1 Muddy Creek From source to Stones Bay SA;HQW- 06/01/56 19-30-2 Stones Creek From source Co Stones Bay SA;HQW 06/01/56 19-30-3 Millstone Creek From source to Stones Creek SA;HQW 06/01/66 19-30-3-1 New River Restricted Area All waters within 1,000 SC 06/01/56 19-31 # 1 yards of earthen dock at the United States Marine Corps Rifle Range Everett Creek From source to New River SA;HQW 06/01/56 19-32 Ellis Cove Entire Cove SA;HQW 06/01/56 19-33 Sneads Creek From source to Ellis Cove SA;HQW 06/01/56 19-33-1 Bay Fannie Creek From source to New River SA;HQW 06/01/56 19-34 Wheeler Creek From source to New River SA;HQW 06/01/56 19-35 Courthouse Bay Entire Bay SA;HQW 06/01/56 19-36 New River Restricted Area All waters within a line SC 06/01/56 19-37 # 2 beginning at the Government Dock in front of U.S. Coast Guard Detachment Barracks at Marines and running a southwest course 1,000 yards to Channel Marker 413, thence a southeasterly course 1,000 yards to Flash Beacon # 11, thence a northeasterly course 500 yards to al point on the mainland at Wilkins' Bluff, thence following the shoreline to the Government Dock 3 02:59P Perini/Jones 910 451 9362 DEPARTMENT OF THE NAVY OFFICER IN CHARGE OF CONTRACTS RESIDENT OFFICER IN CHARGE OF CONTRACTS NAVAL FACILITIES ENGINEERING COMMAND CONTRACTS 1005 MICIIAEL ROAD CAMP LEJEUNE, NC 28547.2521 State of North Carolina Department of Environment Health and Natural Resources Division of Water Quality 127 Cardinal Dave Extension Wilmington, NC 28405 Attn: Noelle Lutheran Gentlemen: P-01 TELUHONs: 910.451-2581 FAX 910-451-5899 IN REPLY REFER TO, N62470-99-C-9127 JAX/Altvm Re: Contract N62470-99-C-9127, Bachelor Enlisted Quarters, Courthouse Bay, Camp Lejeune, North Carolina (Permit SW8 010431) Reference our phone conversation with your Ms. Noelle Lutheran concerning the construction of the referenced stormwater pond. As discussed, the construction contractor will be cleaning out the pond during the week of 28 October 2002 (weather permitting). Following this procedure the designer will inspect the construction to ensure compliance with the permit. The designer will then provide written documentation as to his findings. Your office will be provided a copy of that letter. If you have any further questions relative to this matter please contact the undersigned at 910- 451-2583 ext.245. Sincerely, ftooc� Vann Marshburn PE Quality Performance ... Quality Results