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HomeMy WebLinkAboutSW8080907_CURRENT PERMIT_20201001STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW8 6 g oc? a 7 DOC TYPE [ CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE 20 2 0 j o O YYYYMM DD nwQTusr olv�Y Date Received Fee Paid Permit Number D/ .50.5 aoU/5�.?So�S/ �G� �Q�� O Applicable Rules: ❑ Coastal SW -1995 ❑ Coastal SW - 2008 ❑ Ph II - Post Construction (select all that apply) ❑ Non -Coastal SW- HQW/ORW Waters ❑ Universal Stormwater Management Plan ❑ Other WQ M =mt Plan: State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM 71ris form may be photocopied for use as an original I. GENERAL INFORMATION 1. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): USMC - AAV COMPANY 2. Location of Project (street address): COURTHOUSE RD., MCB CAMP LEIEUNE City:CAMP LETEUNE County:ONSLOW Zip:28547-2521 3. Directions to project (from nearest major intersection): From Sneads Ferry go east on NC 172 though Lejeune gate, turn rt at Courthouse Rd at 6.2 miles, 2roiect site on left and right side. 4. Latitude:34° 35' 32" N Longitudc:77° 22' 23" W of the main entrance to the project. H. 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 numberSW8080907 , its issue date (if known)October 8, 2008 , and the status of construction: ❑Not Started ®Partially Completed* ❑ Completed* *provide a designer's certification 2. Specify the type of project (check one): []Low Density ®High Density ❑Drains to an Offsite Stormwater System ❑Other 3. If this application is being submitted as the result of a previously returned application or a letter from DWQ requesting a state stormwater management permit application, list the stormwater project number, if assigned, and the previous name of the project, if different than currently proposed, 4. a. Additional Project Requirements (check applicable blanks; information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748): ❑LAMA Major ®Sedimentation/Erosion Control: 6.92 ❑NPDES Industrial Stormwater ❑404/401 Permit: Proposed Impacts _ ac of Disturbed Area b. If any of these permits have already been acquired please provide the Project Name, Project/ Permit Number, issue date and the type of each permit:AAV Company Interim Facilities Courthouse Bay Proicct ID: Onslo-2009-035, Issued: October 10, 2008, Erosion Sedimentation Control RECEOVE� JUL 0 9 2012 Fonn 5WU-101 Version VJun2010 Pale 1 of 4 Ill. CONTACT INFORMATION 1. a. Print Applicant / Signing Official's name and title (specifically the developer, property owner, lessee, designated government official, individual, etc. who owns the project: Applicant/Organization:Commanding Officer, Maring Corps Base, Camp Lejeune Signing Official & Title:Carl Baker, Deputy Public Works Officer b.Contact information for person listed in item 1a above: Street Address:Bldg_1005 Michael Rd. City:MCB Cam p Lejeune Mailing Address (if applicable): City:MCB Cam Leieune Statc:NC State:NC Zi p:28547 Zip:28547 Phone:.(910 _ ._}_ 451-2213 Fax: (910 ) 451-2927 Email:carl.h.baker@usmc.mil c. Please check the appropriate box. The applicant listed above is: ® The property owner (Skip to Contact Information, item 3a) ❑ Lessee* (Attach a copy of the lease agreement and complete Contact Information, item 2a and 2b below) ❑ Purchaser* (Attach a copy of the pending sales agreement and complete Contact Information, item 2a and 2b below) ❑ Developer* (Complete Contact Information, item 2a and 2b below.) 2. a. Print Property Owner's name and title below, if you are the lessee, purchaser or developer. (This is the person who owns the property that the project is located on): Property Owner/Organization: Signing Official & Title: b.Contact information for person listed in item 2a above: Street Address: City: State: Zip: Mailing Address (if applicable): City: State: Zip: Phone: ( ] Fax: Email: 3. a. (Optional) Print the name and title of another contact such as the project's construction supervisor or other person who can answer questions about the project: Other Contact Pcrson/Organization:Andrew B. Wilson EIT AECOM Signing Official & Title: b. Contact information for person listed in item 3a above: Mailing Address:701 Corporate Center Drive City:Raleigh _ State:NC Zip:27607 Phone: (919 ) 854-6225 Fax: (919 1 854-6259 Email:-,indrewb.wilson@accom.com 4. Local jurisdiction for building permits: Point of Contact: Phone #: JUL 0 9 2012 Form SWU-101 Version 07.1un2010 Page 2 of 7 - -- IV. PROJECT INFORMATION 1. In the space provided below, briefly summarize how the stormwater runoff will be treated. The existing permit (SW8 080907) accounted for 23,217 sf of impervious area within drainage area 5 as well as an outlet basin to treat bypass volume in order to not directly discharge into the bay. This "mod" is a result of the decrease of impervious area within drainage area 5 from 23,217 sf to 15,694 sf, resulting adjustments to calculations due to the decrease of BUA and the removal of the outlet basin due to the re-routing of the bypass to the associated level spreader/ vegetated filter strip on the Northeast side of the project site. The sand filter size will not change due to the decrease in BUA. 2. a. If claiming vested rights, identify the supporting documents provided and the date they were approved: ❑ Approval of a Site Specific Development Plan or PUD Approval Date: ❑ Valid Building Permit Issued Date: ❑ Other: Date: b.If claiming vested rights, identify the regulation(s) the project has been designed in accordance with: ® Coastal SW -1995 ❑ Ph I I - Post Construction 3. Stormwater runoff from this project drains to the White Oak River basin. 4. Total Property Area: 28.7 acres 5. Total Coastal Wetlands Area: 0 acres 6. Total Surface Water Area: 0 acres 7. Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project Area':28.1 acres Total project area shall be calculated to exclude thefollowing: the normal pool of impounded structures, the area between the banks of streams and rivers, the area below the Normal High Water (NHW) line or Mean High Water (MHW) line, and coastal wetlands landward from the NHW (or MHW) line. T7ae resultant project area is used to calculate overall percent built upon area (BUA), Non -coastal wetlands landward of the NHW (or MHW) line may be included in the total project area. 8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 78.8 % 9. How many drainage areas does the project have?5 (For high density, count 1 for each proposed engineered stormwater BMP. For low density and other projects, use 1 for the whole property area) 10. Complete the following information for each drainage area identified in Project Information item 9. If there are more than four drainage areas in the project, attach an additional sheet with the information for each area provided in the same format as below. RECEtVE� JUL 0 9 2012 Form SWU-101 Version 07Jun2010 Page 3 of 7 Basin Information Drain e Area 1 Draina a Area 2 Draina e Area 3 Draina e Area 4 _ Receiving Stream Name New River New River New River New River Stream Class * SA; HQW SA; HQW SA; HQW SA; HQW Stream Index Number * 19-(72) 19-(72) 19-(72) 19-(72) Total Drainage Area (so 25390 26932 16024 25884 On -site Drainage Area (so 25390 26932 16024 25884 Off -site Drainage Area (so 0 0 0 0 Proposed Impervious Area** (so 25066 13292 13,537 25,064 Impervious Area'* total 98.7% 49.4% 84.5% 96.8% Impervious- Surface Area Drainage Area 1 Drainage Area 2 Drainage Area 3 Drainage Area 4 On -site Buildings/Lots (so 0 6000 10200 0 On -site Streets (so 0 4895 0 0 On -site Parking (so 25066 0 0 25,064 On -site Sidewalks (so 0 2397 1539 0 Other on -site (so 0 0 1798 0 Future (so 0 0 0 0 Off -site (sf) 0 0 0 0 Existing BUA*** (so 0 1 0 0 0 Total (so: 1 25066 1 13292 13,537 25,064 * Stream Class and Index Number can be determined at: http://portal.ncdenr.org/web/wq&s/csu/cIassihcations '* Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas, sidewalks, gravel areas, etc. ***Report only that amount of existing BUA that will renrain after development. Do not report arty existing BUA that is to be removed and which will be replaced by new BUA. 11. How was the off -site impervious area listed above determined? Provide documentation. NA Proicets in Union County- Contact DWQ Central OfJice slaJJ'lo check if the project is located within a Threatened & Endangered Species watershed that mqv he subject to more stringent stormwater requirements as per NCAC 02I3.0600. V. SUPPLEMENT AND O&M FORMS The applicable state stormwater management permit supplement and operation and maintenance (O&M) forms must be submitted for each BMP specified for this project. The latest versions of the forms can be downloaded from http://portal.ncdenr.org/web/wq/ws/su/bmp-manual. Vl. SUBMITTAL REQUIREMENTS Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ). A complete package includes all of the items listed below. A detailed application instruction sheet and BMP checklists are available from http://j2ortal.ncdenr,org/web/wq/wsjsuZstatesw/forms_docs. The complete application package should be submitted to the appropriate DWQ Office. (The appropriate office may be found by locating project on the interactive online map at http://12ortal.ncdenr.org/web/wq/ws/su/maps.) Please indicate that the following required information have been provided by initialing in the space provided for each item. All original documents MUST be signed and initialed in blue ink. Download the latest versions for each submitted application package from httj2://]?ortal.ncdenr.orp-Zweb/.wq/ws/su/statesw/forms does. In' ' s 1. Original and one copy of the Stormwater Management Permit Application Form. 2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants Form. (if required as per Part VII below) 3. Original of the applicable Supplement Form(s) (sealed, signed and dated) and O&M agreement(s) for each BMP. 4. Permit application processing fee of $505 payable to NCD� refer to http_//www.envhelp.org/pages/onestol2exl2ress.htMl fRif ormatro on e ss program and the associated fees. Contact the appropriate regionaiceE�preesk )"'it C dinator for additional information and to schedule the required appiontmee n L0 Form SWU-101 Version 07Jun2010 Page 4 of 7�Y" AAV Company - Addendum to Basin Descriptions for Permit Application BasiZlnfo�niatibn r ai.nage7Area15� MQ6gjnage7Areal,6= Receiving Stream Name New River Stream Class SA, HQW rn Drainage Area (sf) 23468 3 Existing Imp. Area (sf) 0CD m Proposed Imp Area (sf) 15694 a % Imp Total 66.9% 0 ca I m Surface Area 0 m c ° On -Site Buildings (sf) 0 n C $ On -site Streets (sf) 0 R On-stie Parking (sf) 14595 a On -Site Sidewalks (sf) 0 Other On -site (sf) 1099 Off -site (sf) 0 Totail 15694 5. A detailed narrative (one to two pages) describing the stormwater treatment/management for 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'/z mile of the site boundary, include the'/z mile radius on the map. 7. Sealed, signed and dated calculations. 8. Two sets of plans folded to 8.5" x 14" (sealed, signed, & dated), including: a. Development/ Project name. b. Engineer and firm. c. Location map with named streets and NCSR numbers. d. Legend. e. North arrow. f. Scale. g. Revision number and dates. h. Identify all surface waters on the plans by delineating the normal pool elevation of impounded structures, the banks of streams and rivers, the MHW or NHW line of tidal waters, and any coastal wetlands landward of the MHW or NHW lines. • Delineate the vegetated buffer landward from the normal pool elevation of impounded structures, the banks of streams or rivers, and the MHW (or NHW) of tidal waters. i. Dimensioned property/project boundary with bearings & distances. j. Site Layout with all BUA identified and dimensioned. k. Existing contours, proposed contours, spot elevations, finished floor elevations. 1. Details of roads, drainage features, collection systems, and stormwater control measures. m. Wetlands delineated, or a note on the plans that none exist. (Must be delineated by a qualified person. Provide documentation of qualifications and identify the person who made the determination on the plans. n. Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations. o. Drainage areas delineated (included in the main set of plans, not as a separate document). p. Vegetated buffers (where required). 9. Copy of any applicable soils report with the associated SHWT elevations (Please identify A)A 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"x11" copy of the NRCS County Soils map with the project area clearly delineated. For projects with infiltration BMPs, the report should also include the soil type, expected infiltration rate, and the method of determining the infiltration rate. (Infiltration Devices submitted to WiRO: Schedule a site visit for DWQ to verify the SHVvT prior to submittal, (9I0) 796-7378.) A 10. A copy of the most current property deed. Deed book: Page No: 11. For corporations and limited liability corporations (LLC): Provide documentation from the NC Secretary of State or other official documentation, which supports the titles and positions held by the persons listed in Contact Information, item la, 2a, and/or 3a per NCAC 21-1.1003(e). The corporation or LLC must be listed as an active corporation in good standing with the NC Secretary of State, otherwise the application will be returned. httj?://www.secretaU.state.nc.us/Corporations/CSearch.aspx VII. DEED RESTRICTIONS AND PROTECTIVE COVENANTS For all subdivisions, outparcels, and future development, the appropriate property restrictions and protective covenants are required to be recorded prior to the sale of any lot. If lot sizes vary significantly or the proposed BUA allocations vary, a table listing each lot number, lot size, and the allowable built -upon area must be provided as an attachment to the completed and notarized deed restriction form. The appropriate deed restrictions and protective covenants forms can be downloaded from http://portal.ncdenr.org/web/wgZws/su/statesw/forms dots. Download the latest versions for each submittal. In the instances where the applicant is different than the property owner, it is the responsibility of the property owner to sign the deed restrictions and protective covenants form while the applicant is responsible for ensuring that the deed restrictions are recorded. By the notarized signature(s) below, the permit holder(s) certify that the recorded property restrictions and protective covenants for this project, if required, shall include all the items required in the permit and listed on the forms available on the website, that the covenants will be binding on all parties and persons claiming under them, that they will run with the land, that the required covenants cannot be changed or deleted without concurrence from the NC DWQ and that they will be recorded prior rl I Jug 0 9 zolz 11 Form SWU-101 Version 07Jun2010 Page 5 of 7 BY, 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:Andrew B. Wilson, EIT Consulting Firm: AECOM Mailing Address:701 Corporate Center Drive City:Raleigh State:NC Zip:27607 Phone: (919 } 854-6225 Fax: (919 } 854-6259 Email:and rewb.wilson@aecom.com IX. PROPERTY OWNER AUTHORIZATION (if Contact Information, item 2 has been filled out, coniplete this section) 1, (print or type natne of person listed in Contact Infornation, iteni 2a) certify that 1 own the property identified in this permit application, and thus give permission to (print or type name of person listed in Contact Infontiation, item 1a) with (print or type name of organization listed in Contact Information, item 1a) to develop the project as currently proposed. A copy of the lease agreement or pending property sales contract has been provided with the submittal, which indicates the party responsible for the operation and maintenance of the stormwater system. As the legal property owner I acknowledge, understand, and agree by my signature below, that if my designated agent (entity listed in Contact Information, item 1) dissolves their company and/or cancels or defaults on their lease agreement, or pending sale, responsibility for compliance with the DWQ Stormwater permit reverts back to me, the property owner. As the property owner, it is my responsibility to notify DWQ immediately and submit a completed Name/Ownership Change Form within 30 days; otherwise I will be operating a stormwater treatment facility without a valid permit. I understand that the operation of a stormwater treatment facility without a valid permit is a violation of NC General Statue 143-215.1 and may result in appropriate enforcement action including the assessment of civil penalties of up to $25,000 per day, pursuant to NCGS 143-215.6. Signature: a Notary Public for the State of , do hereby certify that before me this _ day of Date: County of personally appeared , and acknowledge the due execution of the application for a stormwater permit. Witness my hand and official seal, SEAL My commission expires nECEiVE'a JUL o s 2012 Form SWU-101 Version 07Jun2010 Page 6 of X.• APPLICANT'S CERTIFICATION I, (print or hjpe nacre of person listen in Contact Information, item 1a) _ -A—d _ tf, V'l KeC- 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 recorde d that the proposed project complies with the requirements of the applicable stormy'a-tAr rules under 15AP<lCAC 2M .1000, SL 2006-246 (Ph. II - Post Construction) or SL 2008-211. Signature: Date:=� �^ L /C r• ��/Jit� a Notary Public for the State of �c� �C.Q�i'�^a' County of 0/1ll,�1 do hereby certify that C /f=�' personally appeared before me this 2day of and acknowledge -the due execution of the application for ' a stormwater permit. Witness my hand and official seal, ,��'/� •�LJ"�"� - ALICE A. BONNETTE Notary Public Onslow County state of North Carol"W1 M Commission Tres SEAL is C� C� J/J My commission expires � � ECEIVE JUL 0 9 2012 BY: Form SWU-101 Version 07Jun2010 Pale 7 of 7 31 Permit Number: {to be provided by DWQ) �QF wArg9Q AR�`A r NCDENR STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM SAND FILTER SUPPLEMENT This form must be filled out on fine, printed and submitted with all of the required information. Make sure to also fill out and submit the Required Items Checklist (Section 111) and the I&M Agreement (Section IV) it. PROJECT INFORMATION Project name AAV Company Contact name Bryan Dick Phone number 919-854-6252 Date September 1, 2008 Drainage area number 1 II. DESIGN INFORMATION Site Characteristics Drainage area (AD) Impervious area % Impervious (IA) Design rainfall depth (Ro) Peak Flow Calculations 1-yr, 24-hr runoff depth 1-yr, 24-hr intensity Pre -development 1-yr, 24-hr runoff Post -development 1-yr, 24-hr runoff Pre/Post 1-yr, 24-hr peak control Storage Volume Design volume (WOV) Ad}usted water quality volume (WOVAdi) Volume contained in the sedimentation basin and on top of the sand filter Maximum head on the sedimentation basin and sand filter (hmaxF1ft9O Average head on the sedimentation basin and sand filter (hA) Runoff Coefficient (Rv) Type of Sand Filter Open sand filter? If this is an open sand filter: The clearance between the bottom of the sand filter and the SHWT (dsHwr) Closed/pre-cast sand filter? If this is a closed sand filter: The clearance between the bottom of the sand filter and the SHWT (dsHwT) If this is a closed, underground closed sand filter: The clearance between the surface of the sand filter and the bottom of the roof of the underground structure (dspa,J 25,390.00 fe OK 25,066.00 it 98.7% % 3.70 in 3,70 in 0.80 inlhr 0.19 ft'Isec 0.46 ft3/sec 0.27 ft/sec 7,360.00 ft3 5,520.00 3 #VALUE! ff1lAl I IFI f6i-C .' s6t- CALCs /-0a- VuLt..mF_ 1.75 ft Insufficient depth. 0.88 h OK 0.94 (unitless) Y Y or N R, ( `�� 2.20 ft 5� 9 Zooa NA YorN NA ft F3Y NA ft Form SW401-Sand Filter-Rev.3 Parts I and U. Project Design Summary, Page 1 of 3 Sedimentation Basin Permit Number: 1 �� (to be provided by DWQ) Surface area of sedimentation basin (As) Sand Filter Surface area of sand filter (Ad Depth of the sand media filter bed (dF) Coefficient of permeability for the sand filter (k) Time to drain the sand filter (t) Time to drain the sand filter (t) Additional Information Does volume in excess of the design volume bypass the sand filter? Is an off-line flow -splitting device used? Does volume in excess of the design volume flow evenly distributed through a vegetated filter? What is the length of the vegetated filter? Does the design use a level spreader to evenly distribute flow? Is the BMP located at least 30ft from surface waters (50ft if SA waters)? Is the $MP located at least 100ft from water supply wells? Are the vegetated side slopes equal to or less than 11 Is the BMP located in a recorded drainage easement with a recorded access easement to a public Right of Way (90W)? What is the width of the sedimentation chamberlforebay (Wsd)? What is the depth of sand over the outlet pipe? Figure 1: Open Sand Filter Sedililelltati Olk S:md Filter Chauiber Ch:uuhrr i.or NA ebav) r III -Situ Soil: tiea?onabl4 Hi0i Watev Talde ............`r�Ea ............ NA- See Calcs OK. Meets minimum, but may need to be increased to SA varies with ft2 contain the required volume if error under Storage Elev Volume section. NA- See Ca1cs OK. Meets minimum, but may need to be increased to SA varies with f? contain the required volume if error under Storage Elev Volume section. 1.70 ft 3.50 (ft/day) 23.00 hours OK. Submit drainage calculations. 0.96 days Y Y or N OK Y Y or N OK Y Y or N OK 50.00 ft Y Y or N OK Y Y or N OK Y Y or N OK Y Y or N OK NA Y or N Insufficient ROW location. 21.00 It OK 1.50 ft OK dpipe ? �fF i t6WT 0 Form SW401-Sand Filter-Rev.3 Parts I and 11. Project Design Summary, Page 2 of 3 * Figure 2: Closed Sand Filter Permit Number: {to be provided by DWO) CCU%'Ct' to -A tC5 Floc 11tIUeY f ipc Flow ��. ................ [ls pace - a{FiAe i ClF C 011Cgete (of udler . •• r. ,'z- .: - ..' shuchtral ulatcrial) j .................... Ilt-Sittt Suil i- ft ` 6V"r Sca:ouabh•HiJi " W,dcr Tablc Watc1' S4611C1It.16011 Cluniiber (FiJebaN.) Saiid )rtltcl' (_t1:111ibey Colle to+l (Heavy sediments, (Trapped Sn'id.) Olprncs.Uebrss) Form SW401-Sand Filter-Rev,3 Parts I and 11. Project Design Summary, Page 3 of 3 Permit No IoQa (to be provided by DWQ) Ill. REQLIIRED'ITEMS CHECKLIST Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Initials Pagel Plan Sheet No. 646, CL-_(t s 1. Plans (1" - 50' or larger) of the entire site with labeled drainage area boundaries - System dimensions (length, width, and depth) for both the sedimentation chamber and the filter chamber - Maintenance access, Flow splitting device, Proposed drainage easement and public right of way (ROW), - Design at ultimate build -out, Off -site drainage (if applicable), and - Boundaries of drainage easement. C157 2. Plan details (1" = 50' or larger) for the sand filter showing: - System dimensions (length, width, and depth) for both the sedimentation chamber and the filter 040 Crl- C 6 chamber - Maintenance access, Flow splitting device, Proposed drainage easement and public right of way (ROW), Design at ultimate build out, Off -site drainage (if applicable), and Boundaries of drainage easement. 3. Section view of the sand filter (1" = 20' or larger) showing: - Depth(s) of the sedimentation chamber and sand filter chamber, Depth of sand filter media Connection between the sedimentation chamber and the sand filter chamber, SHWT level(s) Outlet pipe, and - Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if applicable) k 4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The results of the soils report must be verified in the field by DWQ, by completing & submitting the soils investigation request form. County soil maps are not an acceptable source of soils information. 5. Supporting calculations (including drainage calculations) Aff". B. Signed and notarized operation and maintenance (0&M) agreement IVA 7. A copy of the deed restrictions (if required). Form SW401-Sand Filter-Rev.3 Part III, Page 1 of t Permit Number�.11%��a MQ 7 (to be provided by OWQ) t Aim, .......... �k STORMWATER MANAGEMENT PERMIT APPLICATION FORM HCDENR 401 CERTIFICATION APPLICATION FORM SAND FILTER SUPPLEMENT This form must be filled out on line, printed and submitted with all of the required information. Make sure to also fill out and submit the Required Items Checklist (Section III) and the ISM Agreement (Section IV) Project name Contact name Phone number Date Drainage area number Site Characteristics Drainage area (AD) Impervious area % Impervious (IA) Design rainfall depth (RD) Peak Flow Calculations 1-yr, 24-hr runoff depth 1-yr, 24-hr intensity Pre -development 1-yr, 24-hr runoff Post -development 1-yr, 24-hr runoff Pre/Post 1-yr, 24-hr peak control Storage Volume Design volume (WQV) Adjusted water quality volume (WQVAdi) Volume contained in the sedimentation basin and on top of the sand filter Maximum head on the sedimentation basin and sand filter (hm.Fiw) Average head on the sedimentation basin and sand filter (hA) Runoff Coefficient (Rv) Type of Sand Filter Open sand filter? If this is an open sand filter: The clearance between the bottom of the sand filter and the SHWT (dsHwr) Closed/pre-cast sand filter? If this is a closed sand filter: The clearance between the bottom of the sand filter and the SHWT (dsHwr) If this is a closed, underground closed sand filter: The clearance between the surface of the sand filter and the bottom of the roof of the underground structure (dsp�) AAV Company Bryan Dick 919-854-6252 March 17, 2010 2 26,932.00 ft2 OK 13,292.00 f? 49.4% % 3,70 in 3.70 in 0.80 inlhr 0.14 It3lsec 0.30 ft'isec 0.16 ft3isec 4,104.00 ft3 3 07 OK 3,322.8 AcAUP,-L -Y- a F �S catut���d� �^ � s F �orc Lo kr'1101 33101 —see 1—+kis cc t i uses -76 It Insufficient depth. 0.88 It OK ��►ij4X 0.49 (unifless) i S r'o 01C"I N YorN NA ft Y YorN 2.00 ft NA ft in PoYz' Y 7 �xrc bay cUi mo7s;vn;' MAR 2 B 20W J3Y: Form SW401-Sand Filler-Rev.3 Parts I and It. Project Design Summary, Page 1 of 3 Permit Number: (to be provided by DWO) Sedimentation Basin OK. Meets minimum, but may need to be increased to Surface area of sedimentation basin (As) 384.00 ft' contain the required volume if error under Storage Volume section. Sand Filter OK. Meets minimum, but may need to be increased to Surface area of sand filter (AF) 1,504.00 ft2 contain the required volume if error under Storage Volume section. Depth of the sand media filter bed (dF) 1.60 ft Coefficient of permeability for the sand filter (k) 3.50 (ft/day) Time to drain the sand filter (t) 15.30 hours OK. Submit drainage calculations. Time to drain the sand filter (t) 0.64 days Additional Information Does volume in excess of the design volume bypass the sand filter? Y Y or N OK Is an off-line flow -splitting device used? Y Y or N OK Does volume in excess of the design volume (low evenly distributed through a vegetated filter? Y Y or N OK What is the length of the vegetated filter? 50.00 ft Does the design use a level spreader to evenly distribute flow? Y Y or N OK Is the BMP located at least 30ft from surface waters (50ft if SA waters)? Y Y or N OK Is the BMP located at least 100ft from water supply wells? Y Y or N OK Are the vegetated side slopes equal to or less than 3:1 Y Y or N OK Is the BMP located in a recorded drainage easement with a recorded access easement to a public Right of Way (ROW)? NA Y or N Insufficient ROW location. What is the width of the sedimentation chamberlforebay (Ww)? 16.00 ft OK What is the depth of sand over the outlet pipe? 1.04 ft OK Figure 1: Open Sand Filter I M�R�92010 Form SW401-Sand Filtor•Rev.3 Parts I and II. Project Design Summary, Page 2 of 3 Figure 2: Closed Sand Filter Permit Number: (to be provided by DWQ) Se_dhne ntatibn iiii'er (orForebay) S'uyd Filter 'Cl amber 'A - MAR292010 BY: Form SW401-Sand Filter-Rev.3 Parts ! and II. Project Design Summary, Page 3 of 3 Permit Number - (to be. by DWQJ 1 STORMWATER MANAGEMENT PERMIT APPLICATION FORM NCDENR 401 CERTIFICATION APPLICATION FORM SAND FILTER SUPPLEMENT This form must be filled out on tine, printed and submitted with all of the required information. Make sure to also fill out and submit the Required Items Checklist (Section 111) and the I&M Agreement (Section IV) Project name Contact name Phone number Date Drainage area number Site Characteristics Drainage area (AD) Impervious area % Impervious (IA) Design rainfall depth (Rn) Peak Flow Calculations 1-yr, 24-hr runoff depth 1-yr, 24-hr intensity Pre -development 1-yr, 24-hr runoff Post -development 1-yr, 24-hr runoff PrelPost 1-yr, 24-hr peak control Storage Volume Design volume (WQV) Adjusted water quality volume (WQVAdi) Volume contained in the sedimentation basin and on top of the sand filter Maximum head on the sedimentation basin and sand filter (hM,R,,) Average head on the sedimentation basin and sand filter (hA) Runoff Coefficient (Rv) Type of Sand Filter Open sand filter? If this is an open sand filter: The clearance between the bottom of the sand filter and the SHWT (d6HWT) Closed/pre-cast sand filter? If this is a closed sand filter: The clearance between the bottom of the sand filter and the SHWT (dsHwT) If this is a closed, underground closed sand filter: The clearance between the surface of the sand filter and the bottom of the roof of the underground structure (dsP,,) Form SW401-Sand Filter-Rev.3 AAV Company Bryan Dick 919-854.6252 September 1, 2008 3 16,024.00 ft2 OK 13,537.00 ft2 84.5% % 3.70 in J.ru in 0.80 inihr 0.13 ft�isec 0.25 ft3isec 0.12 ft3lsec 6 Am E Ass V6L. kit!ZF- GNL't uJ� 4,004.00 ff3 ,� � Forme 3,003.00 ff3 rh�4X � no 3,259.2 OK A t p vh , tt-C 6L 1.40 It Insufficient depth. 33 Z ib C 0 0.70 ft OK 0.81 (unitiess) N YorN NA It Y YorN 2.50 ft NA ft RECEIZ D AR Parts i and II. Project Design Summary, Page 1 of 3 Permit Number: (to be provided by DWO) Sedimentation Basin OK. Meets minimum, but may need to be increased to Surface area of sedimentation basin (As) 336.00 ft2 contain the required volume if error under Storage Volume section. Sand Filter OK. Meets minimum, but may need to be increased to Surface area of sand filter (AF) 1,992.00 ft2 contain the required volume if error under Storage Volume section. Depth of the sand media filter bed (dF) 1.55 ft Coefficient of permeability for the sand filter (k) 3.50 (fVday) Time to drain the sand filter (t) 11.50 hours OK. Submit drainage calculations. Time to drain the sand filter (t) 0.48 days Additional Information Does volume in excess of the design volume bypass the sand filter? Y Y or N OK Is an off-line flow -splitting device used? Y Y or N OK Does volume in excess of the design volume flow evenly distributed through a Y Y or N OK vegetated filter? What is the length of the vegetated filter? 50A0 ft Does the design use a level spreader to evenly distribute flow? Y Y or N OK Is the BMP located at least 30ft from surface waters (50ft if SA waters)? Y Y or N OK Is the BMP located at least 100ft from water supply wells? Y Y or N OK Are the vegetated side slopes equal to or less than 3:1 Y Y or N OK Is the BMP located in a recorded drainage easement with a recorded access NA Y or N Insufficient ROW location, easement to a public Right of Way (ROW)? What is the width of the sedimentation chamberlforebay (Wsm)? 24.00 ft OK What is the depth of sand over the outlet pipe? 1.00 ft OK Figure 1: Open Sand Filter C U7-D MAR 2 BY: Force SW401-Sand Filter-Rev.3 Parts I and 11. Project Design Summary, Page 2 of 3 Figure 2: Closed Sand Filter Permit Number: (to be provided by DWQ) S" tAimentatiou _ Cii�iiuiier - '(or Forebav) SandFiEter 'cj . bet MAR 2 8 2010 6Y: Form SW401-Sand Filter-Rev.3 Parts I and 11. Project Design Summary, Page 3 of 3 Permit Numbe (to be provided by DWO) OF W A T�9 C) oG � r AA 7 NCDENR o T STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM SAND FILTER SUPPLEMENT This form must be filled out on line, printed and submitted with all of the required information. Make sure to also fill out and submit the Required Items Checklist (Section III) and the l&M Agreement (Section IV) I'qP.R0IJECTJINF.ORMATION w .. Project name AAV Company Contact name Bryan Dick Phone number 919-854-6252 Date September 1, 2008 Drainage area number 4 Site Characteristics Drainage area (AD) Impervious area % Impervious 0A) Design rainfall depth (Ro) Peak Flow Calculations 1-yr, 24-hr runoff depth 1-yr, 24-hr intensity Pre -development 1-yr, 24-hr runoff Post -development 1-yr, 24-hr runoff Pre/Post 1-yr, 24-hr peak control Storage Volume Design volume (WOV) Adjusted water quality volume (WOVAdi) Volume contained in the sedimentation basin and on top of the sand filter Maximum head on the sedimentation basin and sand filter (hMa Mer) Average head on the sedimentation basin and sand filter (hA) Runoff Coefficient (Rv) Type of Sand Filter Open sand filter? If this is an open sand filter: The clearance between the bottom of the sand filter and the SHWT (dsHwT) Closed/pre-cast sand filter? If this is a closed sand filter: The clearance between the bottom of the sand filter and the SHWT (dsKwr) If this is a closed, underground closed sand lifter: The clearance between the surface of the sand filter and the bottom of the roof of the underground structure (ds.e) 25,884.00 ft2 OK 25,064,00 f? 96.8% % 3.70 in 3.70 in 0.80 inlhr 0,19 ft3lsec 0.46 10isec 0.27 ft3lsec CALC S Ft^' 2 douA �E 7,340.00 f13 5,505.00 3 #VALUE! #VALUE! 1.66 ft Insufficient depth. 0.83 it OK 0.92 (unitless) Y YorN 2.80 it NA YorN NA 1t NA f1 ___�'L I T1__1 I c'F J Form SW401-Sand Filter-Rev.3 Parts I and II- Project Design Summary, Page 1 o1 3 Sedimentation Basin Permit Number. �a (to be provided by DUVO) Surface area of sedimentation basin (As) Sand Filter Surface area of sand filter (AF) Depth of the sand media filter bed (dF) Coefficient of permeability for the sand filter (k) Time to drain the sand filter (t) Time to drain the sand filter (t) Additional Information Does volume in excess of the design volume bypass the sand filter? Is an off-line flow -splitting device used? Does volume in excess of the design volume flow evenly distributed through a vegetated filter? What is the length of the vegetated filter? Does the design use a level spreader to evenly distribute flow? Is the BMP located at feast 30ft from surface waters (50ft if SA waters)? Is the BMP located at least 100ft from water supply wells? Are the vegetated side slopes equal to or less than 3:1 Is the BMP located in a recorded drainage easement with a recorded access easement to a public Right of Way (ROW)? What is the width of the sedimentation chambedforebay (Ws d)? What is the depth of sand over the outlet pipe? Figure 1: Open Sand Filter Sedimentation Sand Filter Chamber Ch:uuber for Forebar) iu-aunaoir: yea uuaun=MUD +vmar lanrt ................................ a d............: NA- See Calcs OK. Meets minimum, but may need to be increased to SA varies with tip contain the required volume if error under Storage Elev Volume section. NA- See Calcs OK. Meets minimum, but may need to be increased to SA varies with ft2 contain the required volume if error under Storage Elev Volume section. 1.70 It 3.50 (fVday) 22.60 hours OK. Submit drainage calculations. 0.94 days Y Y or N OK Y Y or N OK Y Y or N OK 50.00 It Y YorN OK Y YorN OK Y Y or N OK Y Y or N OK NA Y or N Insufficient ROW location. 21,00ft OK 1.60It OK c pipe i d �'SHWr Z" Form SW401-Sand Fi4er-Rev.3 Parts I and H. Project Design Summary, Page 2 of 3 Figure 2: Closed Sand Filter Permit Number: tsj�'5 �G vU'-) (to be provided by DWO) Flow ON-cl land Flow Concrctc (or odor > shn011111 ulaterill) In-Sihr Soil Scasonabh• Hieli \Nato Table Watea Colleeted S.:611cntatien Clialuber (Fdrebat) {Heavy sedanems, Orpnics. Dtbrix) Cis atcs Sarl+l OuUCI Pipc pECE ..�................... ttPipr cIF .................... 1* ft rlsxwr Saud Filter Chmuber jrapped SoMs) Form SW401-Sand Filter-Rev.3 Parts I and H. Project Design Summary, Page 3 of 3 Permit No.:SL.�U�6Uf�C_� (to be provided by DWQ) III. REQUIRED ITEMS CHECKLIST Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Initials Pagel Plan Sheet No. 49ML G Z 1. Plans (1" - 50' or larger) of the entire site with labeled drainage area boundaries - System dimensions (length, width, and depth) for both the sedimentation chamber and the filter chamber Maintenance access, Flow splitting device, Proposed drainage easement and public right of way (ROW), Design at ultimate build -out, Off -site drainage (if applicable), and Boundaries of drainage easement. G 12 2. Plan details (1" = 50' or larger) for the sand filter showing: - System dimensions (length, width, and depth) for both the sedimentation chamber and the filter chamber Maintenance access, Flow splitting device, Proposed drainage easement and public right of way (ROW), Design at ultimate build -out, - Off -site drainage (if applicable), and Gl2 - Boundaries of drainage easement. 3. Section view of the sand filter (1" = 20' or larger) showing: - Depth(s) of the sedimentation chamber and sand filter chamber, Depth of sand filter media Connection between the sedimentation chamber and the sand filter chamber, SHWT level(s) Outlet pipe, and Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if applicable) +I/PQ 14� 4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The results of the soils report must be verified in the field by DWQ, by completing & submitting the sails investigation request form. County soil maps are not an acceptable source of soils information. k 5. Supporting calculations (including drainage calculations) OMX AlVckk 6. Signed and notarized operation and maintenance (0&M) agreement N F 7. A copy of the deed restrictions (if required). Form SW401-Sand Filter-Pev.3 Part III, Page 1 of t Permks Number�4DQ7 (to be provided by D WQ) z of wnr�q NCDENR STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM SAND FILTER SUPPLEMENT This form must be filled out on line, printed and submitted with all of the required information. Make sure to also fill out and submit the Required Items Checklist (Section W) and the I&M Agreement (Section !V) 1 q PROD ECTi INFORMATION Project name AAV Company Contact name Andrew Wilson Phone number 919-854-6225 Date November 3, 2011 Drainage area number 5 II.11DESIGN INFORMATION Site Characteristics Drainage area (AD) 23,469.00 ft2 OK Impervious area 15,694.00 ft2 % Impervious (IA) 66.9% % Design rainfall depth (RE)) 3.70 in Peak Flow Calculations 1-yr, 24-hr runoff depth 3.70 in 1-yr, 24-hr intensity 0.80 inlhr Pre -development 1-yr, 24-hr runoff 0.17 ft'/sec Post -development 1-yr, 24-hr runoff 0.31 ft/sec PrelPost 1-yr, 24-hr peak control 0.14 ft3lsec Storage Volume Design volume (WQV) 6,802.00 ft3 Adjusted water quality volume (WQVAd,) 5,101.50 ft' OK Volume contained in the sedimentation basin and on top of the sand filter 6,232.00 Maximum head on the sedimentation basin and sand filter (hMa,Fmer) 2.00 ft OK Average head on the sedimentation basin and sand filter (hA) 1.00 ft OK Runoff Coefficient (Rv) 0.65 (unitless) Type of Sand Filter Open sand filter? N Y or N If this is an open sand filter: The clearance between the bottom of the sand NA ft filter and the SHWT (dsHvw) Closed/pre-cast sand filter? Y Y or N If this is a closed sand filter: The clearance between the bottom of the sand 1.00 ft filter and the SHWT (dsHwT) If this is a closed, underground closed sand filter: The clearance between the surface of the sand filter and the bottom of the roof of the underground NA ft structure (ds,,,,) ECIED V E JUL Q 9 2012 BY:_ Form SW401-Sand Filter-Rev.3 Parts I and II. Project Design Summary, Page 1 of 3 Permit Number: (to be provided by DWO) Sedimentation Basin Surface area of sedimentation basin (As) Sand Filter Surface area of sand filter (AF) Depth of the sand media filter bed (dF) Coefficient of permeability for the sand filter (k) Time to drain the sand filter (t) Time to drain the sand filter (t) Additional Information Does volume in excess of the design volume bypass the sand filter? Is an off-line flaw -splitting device used? Does volume in excess of the design volume flow evenly distributed through a vegetated filter? What is the length of the vegetated filter? Does the design use a level spreader to evenly distribute flow? Is the BMP located at least 30ft from surface waters (50ft if SA waters)? Is the BMP located at least 100ft from water supply wells? Are the vegetated side slopes equal to or less than 3:1 Is the BMP located in a recorded drainage easement with a recorded access easement to a public Right of Way (ROW)? What is the width of the sedimentation chamberlforebay (Ws d)? What is the depth of sand over the outlet pipe? Sediureutation C'haruUev (or Forehay) Floes ____W ILL-Sihi Soil i Sea: .................. s.d Figure 1: Open sand Filter High Rater Tab le OK. Meets minimum, but may need to be increased to 854.00 ft' the required volume if error under Storage Volume section. OK. Meets minimum, but may need to be increased to 2,262.00 ftz contain the required volume if error under Storage Volume section. 2.20 ft 3.50 (Ill 18.90 hours OK. Submit drainage calculations. 0.79 days Y Y or N OK Y Y or N OK Y Y or N OK ou.uu rt Y Y or N OK Y YorN OK Y YorN OK Y Y or N OK NA Y or N Insufficient ROW location. 14.00 ft OK 1.90 ft OK Smicl Filter C11"t 1) Ottlet Pipe (IF ..[rah ...............' rlsHWT EVEI VE JUL 4 9 2012 Form SW401-Sand Filler-Rev-3 Parts I and 11. Project Design Summary, Page 2 of 3 Permit Number: (to be provided by DWQ) Weir Flow , Flow A Z Concrete (or other sh1 1) 'tichU A 1111m 11 In-Situv.130il Scisonibb- High Water Table Water Collected Figure 2: Closed Sand Filter Grates 011det Pipe .............. (lF ................... �6v"T ST "V__J SedinieLd.-Itiall Ch.-IIIAIC1. Sind Filter Chnnibcr (Heavy se&mtrus, (Trapped Solids) Organics, Debris) ,�'S.d �EcCEB90E" JUL 0 9 2012 Form SW401 -Sand Filter-Rev.3 Parts I and 11. Project Design Summary, Page 3 of 3 Permit No. (to be provided by DWQ) Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Initials Pagel Plan Sheet No. �� 5 ` 1. Plans (1" - 50' or larger) of the entire site with labeled drainage area boundaries System dimensions (length, width, and depth) for both the sedimentation chamber and the filter chamber Maintenance access, Flow splitting device, - Proposed drainage easement and public right of way (ROW), Design at ultimate build -out, - Oft -site drainage (if applicable), and r� Boundaries of drainage easement. EX2. Plan details (1" = 50' or larger) for the sand filter showing: - System dimensions (length, width, and depth) for both the sedimentation chamber and the filter chamber - Maintenance access, - Flow splitting device, - Proposed drainage easement and public right of way (ROW), - Design at ultimate build -out, - Off -site drainage (if applicable), and - Boundaries of drainage easement, ct� nNco 3. Section view of the sand filter (1" = 20' or larger) showing: t�'NS Depth(s) of the sedimentation chamber and sand filter chamber, - Depth of sand filter media - Connection between the sedimentation chamber and the sand filter chamber, - SHWT level(s) - Outlet pipe, and - Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if applicable) Owe 4 4 A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The results of the soils report must be verified in the field by DWQ, by completing & submitting the soils investigation request form. County soil maps are not an acceptable source of soils information. oka"eO 5. Supporting calculations (including drainage calculations) ?11CK WfC 6. Signed and notarized operation and maintenance (0&M) agreement fJ PS 7. A copy of the deed restrictions (if required). ECEIV JUL 0 9 2012 Form SW401-Sand Filter-Rev.3 Part III, Page 1 of 1 IM Permit Number:.2 10�c0 �10 ► (to be provided by DWQ) Drainage Area Number: r Sand Filter Operation and Maintenance Agreement I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and the removal efficiency of the BMP. Important maintenance procedures: — The drainage area will be carefully managed to reduce the sediment lorKOW,t 11 e ATE+ D sand filter. S F P 1 9 7008 — Once a year, sand media will be skimmed. — The sand filter media will be replaced whenever it fails to function -properly after vacuuming. The sand filter will be inspected quarterly and within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance will be kept in a known set location and will be available upon request. Inspection activities shall be performed as follows. Any problems that are found shalt be repaired immediately. BMP element: Potentialproblem: How I will remediate theproblem: The entire BMP Trash/debris is present. Remove the trash/debris. The adjacent pavement Sediment is present on the Sweep or vacuum the sediment as (if applicable)pavement surface, soon as possible. The perimeter of the Areas of bare soil and/or Regrade the soil if necessary to sand filter erosive gullies have formed. remove the gully, and then plant a ground cover and water until it is established. Provide lime and a one-time fertilizer application, Vegetation is too short or too Maintain vegetation at a height of tong. approximatel six inches. The flow diversion The structure is clogged. Unclog the conveyance and dispose structure of any sediment off -site. The structure is damaged. Make any necessary repairs or replace if damage is too large for repair. The pretreatment area Sediment has accumulated to Search for the source of the a depth of greater than six sediment and remedy the problem if inches. possible. Remove the sediment and dispose of it in a location where it will not cause impacts to streams or the BMP. Erosion has occurred. + Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems. Weeds are present. Remove the weeds, preferably by hand. If a pesticide is used, wipe it on the plants rather than spraying. Form SW401-Sand Filter O&M-Rev.3 Page 1 of 3 BMP element: Potentialproblem: How I will remediate theproblem: The filter bed and Water is ponding on the Check to see if the collector system underdrain collection surface for more than 24 is clogged and flush if necessary. If system hours after a storm. water still ponds, remove the top few inches of filter bed media and replace. If water still ponds, then consult an expert. The outflow spillway Shrubs or trees have started Remove shrubs and trees and pipe to grow on the embankment. immediately. The outflow pipe is clogged. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems. The outflow pipe is damaged. Repair or replace the pipe. The receiving water Erosion or other signs of Contact the NC Division of Water damage have occurred at the Quality 401 Oversight Unit at 919- outlet. 733-1786. Form SW401-Sand Filter O&M-Rev.3 Page 2 of 3 7W Permit Number: S U_Y6 A) (to be provided by DWQ) I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project natne:USMCB- AAV Company BMP drainage area number: I Print name: Carl Baker Title: Deputy Public Works Officer Address: 1005 Michael Rd. Phone Signat Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. I, Ak �_A-(iL LLB eas8 = f , , a Notary Public for the State of tyoR.rli O_j42bu.JFt , County of e D , do hereby certify that - A- (�_L --JkxAP—CR_ personally appeared before me this. j- day ofand acknowledge the due execution of the forgoing sand filter maintenance requirements. Witness my hand and official seal, % ,``,�y111111�,�,` �]�OLLE CO taOT'q y ' A C) : AUBLIG ,:�0 J. '-,, w couN ,•�' SEAL My commission expires !D zd Form SW401-Sand Filter O&M-Rev.3 3 Page 3 of Permit Number:_5 U (tn be provided by DWQ) Drainage Area Number: Sand Filter Operation and Maintenance Agreement I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and the removal efficiency of the BMP. Important maintenance procedures: — The drainage area will be carefully managed to reduce the sediment load to the sand filter. — Once a year, sand media will be skimmed. — The sand filter media will be replaced whenever it fails to function properly after vacuuming. The sand filter will be inspected quarterly and within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance will be kept in a known set location and will be available upon request. Inspection activities shall be performed as follows. Any problems that are founei,shalbbe' repaired immediately. 1�. CF p 1 9 BMP element: Potentialproblem: How I will remediate the roblemy: The entire BMP Trash/debris is present, Remove the trash/debris-3 The adjacent pavement Sediment is present on the Sweep or vacuum the sediment as (if applicable)pavement surface. soon as Rossible. The perimeter of the Areas of bare soil and/or Regrade the soil if necessary to sand filter erosive gullies have formed. remove the gully, and then plant a ground cover and water until it is established. Provide lime and a one-time fertilizer application. Vegetation is too short or too Maintain vegetation at a height of long. approximatel six inches. The flow diversion The structure is clogged. Unclog the conveyance and dispose structure of any sediment off -site. The structure is damaged. Make any necessary repairs or replace if damage is too large for repair. The pretreatment area Sediment has accumulated to i Search for the source of the a depth of greater than six sediment and remedy the problem if inches. possible. Remove the sediment and dispose of it in a location where it will not cause impacts to streams or the BMP. Erosion has occurred. Provide additional erosion protection such as reinforced turf matting or riprap if needed to revent future erosion problems. Weeds are present. Remove the weeds, preferably by hand. If a pesticide is used, wipe it on the plants rather than spraying. Form SW401-Sand Filter O&M-Rev.3 Page 1 of 3 BMP element: Potentialproblem: How I will remediate theproblem: The filter bed and Water is ponding on the Check to see if the collector system underdrain collection surface for more than 24 is clogged and flush if necessary. If system hours after a storm, water still ponds, remove the top few inches of filter bed media and replace. If water still ponds, then consult an ex ert. The outflow spillway Shrubs or trees have started Remove shrubs and trees and pipe to grow on the embankment. immediately. The outflow pipe is clogged. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems. The outflow pipe is damaged. Re air or replace the pipe. The receiving water Erosion or other signs of Contact the NC Division of Water damage have occurred at the Quality 401 Oversight Unit at 919- ou tlet. 733-1786. Form SW401-Sand Filter O&M-Rev.3 Page 2 of 3 Permit Number: S IAX W _0_ 1 (.=� (to be provided by DWQ) .1 I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project notne:USMCB- AAV Company BMP drainage area number: 2 Print name: Carl B Title: Deputy Public Works Officer Address: 1005 Michael Rd. Phone Signa Date: Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. e I, I�IC_i-(� �-L� et-_SPEfL , a Notary Public for the State of 0DR_T{ 0131_6LA A —,County of b j(� �„ , do hereby certify that Pu 6414 e_ personally appeared before me this I Laf day of 2,�ol , and acknowledge the due execution of the forgoing sand filter maintenance requirements SEAL My commission expires /16 lze-)!) 9 Witness my hand and official seal, Form SW401-Sand Filter O&M-Rev.3 Page 3 of 3 Permit Number; 4 (to be provided by DWQ) Drainage Area Number: 3 r Sand Filter Operation and Maintenance Agreement I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and the removal efficiency of the BMP. Important maintenance procedures: — The drainage area will be carefully managed to reduce the sediment load to the sand filter. — Once a year, sand media will be skimmed. — The sand filter media will be replaced whenever it fails to function properly after vacuuming. The sand filter will be inspected quarterly and within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County). Records of operation.and�. maintenance will be kept in a known set location and will be available upon reegJi st P Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. \1P) . ' BMP element: Potentialproblem: How I will remediate the �roblem: The entire BMP Trash/debris is present. Remove the trash/debris. The adjacent pavement Sediment is present on the Sweep or vacuum the sediment as (if applicable)pavement surface. soon as possible. The perimeter of the Areas of bare soil and/or Regrade the soil if necessary to sand filter erosive gullies have formed. remove the gully, and then plant a ground cover and water until it is established. Provide lime and a one-time fertilizer application. Vegetation is too short or too Maintain vegetation at a height of long. approximatel six inches. The flow diversion The structure is clogged. Unclog the conveyance and dispose structure of any sediment off -site. The structure is damaged. Make any necessary repairs or replace if damage is too large for repair, The pretreatment area Sediment has accumulated to Search for the source of the a depth of greater than six sediment and remedy the problem if inches. possible. Remove the sediment and dispose of it in a location where it will not cause impacts to streams or the BMP. Erosion has occurred. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems. Weeds are present. Remove the weeds, preferably by hand. If a pesticide is used, wipe it on the plants rather than spraying. Form SW401-Sand Filter O&M-Rev.3 Page 1 of 3 BMP element: Potentialproblem: How 1 will remediate theproblem: The filter bed and Water is ponding on the Check to see if the collector system underdrain collection surface for more than 24 is clogged and flush if necessary. If system hours after a storm. water still ponds, remove the top few inches of filter bed media and replace. If water still ponds, then consult an expert. The outflow spillway Shrubs or trees have started Remove shrubs and trees and pipe to grow on the embankment. immediately. The outflow pipe is clogged. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems, The outflow pipe is damaged. Repair or replace the pipe. The receiving water Erosion or other signs of Contact the NC Division of Water damage have occurred at the Quality 401 Oversight Unit at 919- outlet. 733-1786. 3- Form SW40[-Sand Filter O&M-Rev.3 Page 2 of 3 r. Permit Number:_ (to be provided by DWQ) 1 acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project name:USMCB- AAV Company BMP drainage area number: 3 Print name: Carl Baker Title: Deputy Public Works Officer Address: 1005 Michael Rd. Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. I, _ Lk \0_ ±rt1 Pa Notary Public for the State of 2r rl-t C'Ae�r z A)a, County of ,17 �L���� , do hereby certify that LA! cg— personally appeared before me this lit day of {4 PreM&=, 2 , Zc�n, and acknowledge the due execution of the forgoing sand filter maintenance requirements. Witness my hand and official seal, `:; 01 XX o OW COVE ' SEAL My commission expires Form SW401-Sand Filter O&M-Rev.3 3 W !h-& 4076� Page 3 of Permit Number: —IS U_�Oyo S (to be provided by DbVQ) :. Drainage Area Number: Sand Filter Operation and Maintenance Agreement I will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and the removal efficiency of the BMP. Important maintenance procedures: — The drainage area will be carefully managed to reduce the sediment load to the sand filter. Once a year, sand media will be skimmed. The sand filter media will be replaced whenever it fails to function properly after vacuuming. The sand filter will be inspected quarterly and within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance will be kept in a known set location and will be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. BMP element: Potentialproblem: How I will remediate theproblem; The entire BMP Trash/debris is present. Remove the trash/debris. The adjacent pavement Sediment is present on the Sweep or vacuum the sediment as (if applicable) pavement surface. soon as possible. The perimeter of the Areas of bare soil and/or Regrade the soil if necessary to sand filter erosive gullies have formed. remove the gully, and then plant a ground cover and water until it is established. Provide time and a one-time fertilizer application. Vegetation is too short or too Maintain vegetation at a height of long. approximately six inches. The flow diversion The structure is clogged. Unclog the conveyance and dispose structure of any sediment off -site. The structure is damaged. Make any necessary repairs or replace if damage is too large for repair. The pretreatment area Sediment has accumulated to Search for the source of the a depth of greater than six sediment and remedy the problem if inches. possible. Remove the sediment and dispose of it in a location where it will not cause impacts to streams or the BMP. Erosion has occurred. Provide additional erosion protection such as reinforced turf matting or riprap if needed to revent future erosion problems, Weeds are present. Remove the weeds, preferably by hand. If a pesticide is used, wipe it on the plants rather than s ra in . Form SW401-Sand filter O&M-Rev.3 Page 1 of 3 w BMP element: Potential roblem: How 1 will remediate theproblem: The filter bed and Water is ponding on the Check to see if the collector system underdrain collection surface for more than 24 is clogged and flush if necessary. If system hours after a storm. water still ponds, remove the top few inches of filter bed media and replace. If water still ponds, then consult an ex ert. The outflow spillway Shrubs or trees have started Remove shrubs and trees and pipe to grow on the embankment. immediately. The outflow pipe is clogged. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems. The outflow pipe is damaged. Repair or replace the pipe. The receiving water Erosion or other signs of Contact the NC Division of Water damage have occurred at the Quality 401 Oversight Unit at 919- outlet. 733-1786. :_4 Form SW401-Sand Filter O&M-Rev.3 Page 2 of 3 4 Permit Number: ; On (to be provided by DWQ) I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project name:USMCB- AAV Company_ BMP drainage area number: Print name: Carl Baker Title: Deputy Public Works Officer Address: 1005 Michael Rd. Phon Signs Date: Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. I, IA 1 LC L _ a Notary Public for the State of � P iQh[42, ,+,l6-, County of LA_)!L rX-) _, do hereby certify that 2c_ _-2'4X&— personally appeared before me this day of Zed , and acknowledge the due execution of the forgoing sand filter maintenance requirements. Witness my hand and official seal, "%%;AL-� CoS ", OTAR� . '5� SEAL My commission expires [� Form SW401-Sand Filter O&M-Rev.3 �FP 19 J�V) Page 3 of w Jr Pen -nit Number: -5-������ (to be pro vi d by DWQ) Drainage Area Number: Sand Filter Operation and Maintenance Agreement will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and the removal efficiency of the BMP. Important maintenance procedures: - The drainage area will be carefully managed to reduce the sediment load to the sand filter. - Once a year, sand media will be skimmed. - The sand filter media will be replaced whenever it fails to function properly after vacuuming. The sand filter will be inspected quarterly and within 24 hours after every storm event greater than 1.0 inches (or 1.5 inches if in a Coastal County). Records of operation and maintenance will be kept in a known set location and will be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. BMP element: Potentialproblem: How I will remediate theproblem: The entire BMP Trash/debris is present. Remove the trash/debris. The adjacent pavement Sediment is present on the Sweep or vacuum the sediment as (if applicable) pavement surface. soon as possible, The perimeter of the Areas of bare soil and/or Regrade the soil if necessary to sand filter erosive gullies have formed. remove the gully, and then plant a ground cover and water until it is established. Provide lime and a one-time fertilizer application. Vegetation is too short or too Maintain vegetation at a height of long. approximatel six inches. The flow diversion The structure is clogged. Unclog the conveyance and dispose structure of anv sediment off -site. The structure is damaged. Make any necessary repairs or replace if damage is too large for repair. The pretreatment area Sediment has accumulated to Search for the source of the a depth of greater than six sediment and remedy the problem if inches. possible. Remove the sediment and dispose of it in a location where it will not cause impacts to streams or the BMP. Erosion has occurred. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems. Weeds are present. Remove the weeds, preferably by eP5e'i sed, wipe it sVtC§-§nsrain. Donn SW401-Sand Filter O&M-Rev.3 Page 1 of 3 BMP element: Potentialproblem: How I will remediate theproblem: The filter bed and Water is ponding on the Check to see if the collector system underdrain collection surface for more than 24 is clogged and flush if necessary. If system hours after a storm. water still ponds, remove the top few inches of filter bed media and replace. If water still ponds, then consult an expert. The outflow spillway Shrubs or trees have started Remove shrubs and trees and pipe to grow on the embankment. immediately. The outflow pipe is clogged. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems. The outflow pipe is damaged. Repair or replace the pipe, The receiving water Erosion or other signs of Contact the NC Division of Water damage have occurred at the Quality 401 Oversight Unit at 919- ou tlet. 733-1786. E EC�EBe/Ep JUL 09 2012 �I Form SW401-Sand Filter O&M-Rev.3 Page 2 of 3 Permit Number: (to be provided by DWQ) 1 acknowledge and agree by my signature below that i am responsible for the performance of the maintenance procedures listed above. 1 agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Projecl name:USMCB- AAV C BjVfP drainage area number: 5 Print name: Carl Baker Title: Deputy Public Works Officer Address: 1005 Michael Rd. Phon Si g ri; Date Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. a Notary Public for the State of /'Ni',/7ir- /.rr' , County of�do hereby certify that personally appeared before me this ,�117 10 day of ,�.r/z-, and acknowledge the due execution of the forgoing sand filter maintenance requirements., Witness my hand and official seal, /// ALICE A. SOMME Notary Public Onslow County State of North Caroli a Commission Ex Ires SEAL My commission expires 1,=2. Uc/� ECLE0a9E JUL 09 2012 Br:_. Form SW40I-Sand Filter O&M-Rev,3 3 Page 3 of i� ,.� � � 4,�.�;. ..,�: �.e.�r•1r.� � y NCDENR STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT This form must be completely filled out, printed and submitted. DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEET)I Project name Contact name Phone number Date Drainage area number For Level Spreaders Receiving Flow From a BMP Type of BMP Drawdown flow from the BMP For Level Spreaders Receiving Flow from the Drainage Area AAV Company Bryan M. Dick 919-854-6252 August 25. 2008 1 cis Drainage area 25,390.00 f? Impervious surface area 25,066.00 ftz Percent impervious 98.72 % Rational C coefficient 0.98 Peak flow from the 1 in/hr storm 0.57 cis Time of concentration 1.70 min Rainfall intensity, 10-yrstorm 2.5 inlhr Peak flow from the 10•yr storm 1.43 cis Where Does the Level Spreader Discharge? To a grassed bioretention cell? N (Y or N) To a mulched bioretention cell? N (Y or N) To a wetland? N (Y or N) To a filter strip or riparian buffer? Y (Y or N) Please complete filter strip characterization Wow. Other (specify) Filter Strip or Riparian Buffer Characterization (if applicable) Width of grass 50.00 it Width of dense ground cover 0.00 h Width of wooded vegetation 0.00 it Total width 50.00 it Elevation at downslope base of level lip 9.10 imsl Elevation at top of bank of the receiving water 8.00 fmsl Slope (from level lip to to top of bank) 2.20 % OK Are any draws present? N (Y or N) OK Level Spreader Design Forebay surface area 80,00 sq it OK Feet of level lip needed per cis 13 fticfs Answer "Y" to one of the following: Length based on the 1 inihr storm? N (Y or N) Length based on the 10•yr storm? Y (Y or N) Length based on the BMP discharge rate? N (Y or N) Design flow 1.43 cis Is a bypass device provided? N (Y or N) A bypass device is not needed. Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Parts I. and It. Design Summary, page 1 of 2 I r Length 41he level lip Are level spreaders in series? 20.00 ft Level spreader length OK. N (Y or N) Bypass Channel Design (if applicable) Does the bypass discharge through a wetland? Does the channel enter the stream at an angle? Dimensions of the channel (see diagram below): M B W y Peak velocity in the channel during the 10-yr storm Channel lining material ------------- M w i B • (Y or N) Do not complete this section of the worksheet. (Y or N) Do not complete this section of the worksheet. Do not complete this section of the worksheet. ft Do not complete this section of the worksheet. ft Do riot complete this section of the worksheet. ft Do not complete this section of the worksheet. ft Do not complete this section of the worksheeL cfs Do not complete this section of the worksheet. Do not ccmpleie this section of the worksheet. M Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Parts I. and It. Design Summary, page 2 of 2 Permit No. 1) (to be provided by DWQ) .'N III: REQUIRED ITEMS CHECKLIST Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the following design requirements have been met. if the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Initials Page/ Plan Sheet No. Cl.�r 1. Plans (1" - 50' or larger) of the entire site with labeled drainage area boundaries - System dimensions (length, width, and depth) for both the sedimentation chamber and the filter chamber Maintenance access, Flow splitting device, Proposed drainage easement and public right of way (ROW), Design at ultimate build -out, - Off -site drainage (if applicable), and /j Boundaries of drainage easement. 2. Plan details (V = 50' or larger) for the sand filter showing: - System dimensions (length, width, and depth) for both the sedimentation chamber and the filter chamber - Maintenance access, - Flow splitting device, - Proposed drainage easement and public right of way (ROW), Design at ultimate build -out, Off -site drainage (if applicable), and Boundaries of drainage easement. �(a 3. Section view of the sand filter (1 " = 20' or larger) showing: - Depth(s) of the sedimentation chamber and sand filter chamber, Depth of sand filter media Connection between the sedimentation chamber and the sand filter chamber, SHWT level(s) Outlet pipe, and - Clearance from the surface of the sand filter to the bottom of the roof of the underground structure (if applicable) Al r, 4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The results of the soils report must be verified in the field by DWQ, by completing & submitting the soils investigation request form. County soil maps are not an acceptable source of soils information. 5. Supporting calculations (including drainage calculations) 6. Signed and notarized operation and maintenance (00) agreement A copy of the deed restrictions (if required). Form 5W401-Sand Filter-Rev.3 Part III, Page 1 of 1 hr. NCDENR p STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATICN APPLICATION FORM LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT This form must be completely filled out, printed and submitted. DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (TEXT WORKSHEET)! I.,'PROJECTfNFORMATION,.. ter..,, ,.j ,, ,, „ t, LL ; Project name AAV Company Contact name Bryan M. Dick Phone number 919-854-6252 Date August 25, 2008 Drainage area number 2 If. DESIGNINFOAMATION_' For Level Spreaders Receiving Flow From a BMP Type of BMP Drawdown flow from the BMP cfS For Level Spreaders Receiving Flow from the Drainage Area Drainage area 18,742.00 It' Impervious surface area 8,800.00 fie Percent impervious 46.95 % Rational C coefficient 0.70 Peak flow from the 1 inlhr storm 0.30 cis Time of concentration 1.50 min Rainfall intensity, 10-yr storm 2.5 inlhr Peak flow from the 10-yr storm 0.75 CIS Where Does the Level Spreader Discharge? To a grassed bioretenlion cell? N (Y or N) To a mulched biorelention cell? N (Y or N) To a wetland? N (Y or N) To a filler strip or riparian buffer? Y (Y or N) Please complete filter strip characterization below. Other (specify) Filter Strip or Riparian Buffer Characterization (it applicable) Width of grass 50.00 It Width of dense ground cover 0.00 11 Width of wooded vegetation uo It Total width 50.00 It Elevation at downslope base of level lip 6.80 fmsl Elevation at top of bank of the receiving water 6.00 fmsl Slope (from level lip to to top of bank) 1.60 % OK Are any draws present? N (Y or N) OK vF Level Spreader Design Forebay surface area 80.00 sq ft OK Feet of level lip needed per cls 13 lticfS Answer 'Y' to one of the following: _ ' Length based on the 1 inlhr storm? N (Y or N) Length based on the 10-yr storm? Y (Y or N) Length based on the BMP discharge rate? N (Y or N) Design flow 0,75 CIS Is a bypass device provided? N (Y or N) A bypass device is not needed. Fnrrn SW401-Level Spreader. Filter Strip, Restc�ed Riparian Buffer-Rev.5 Parts I. and II. Design Summary, page 1 or Length of the level lip Are Invel sprOdders in series? 20.00 1l Level spreader length OK, N (Y or N) Bypass Channet Design (it applicable) Does the bypass discharge through a wetland? Does the channel enter the stream at an angle? Dimensions of the channel (see diagram below): M B W y Peak velocity in the channel during the 1O-yr storm Channel lining material N1 (Y or N) Do not complete this section of the worksheet. (Y or N) Do not complete this section of the worksheet. Do not complete this section of the worksheet. fl Do not complete this section of the worksheet. if Do not complete this section of the worksheet. 1t Do not complef a this section of the worksheet. 1t Do not complete this section of the worksheet. cis Do not complete this section of the worksheet. Do not complete this section of the worksheet. t\ t Form SW401-Level Spreader, Filter Stria. Restored Riparian Buflel-Rev.5 Parts I. and it. Design Summary, page 2 of 2 Ill. REQUIRED ITEMS CHECKLIST Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the following design requirements have been met. It the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Pagel Plan Initials Sheet No. e_ 2 1. Plans (1" - 50' or larger) of the entire site showing: Design at ultimate build -out, Off -site drainage (if applicable), Delineated drainage basins (include Rational C coefficient per basin), Forebay (if applicable), High flow bypass system, Maintenance access, Proposed drainage easement and public right of way (ROW), and Boundaries of drainage easement. i CO 3 2. Plan details (1" = 30' or larger) for the level spreader showing: Forebay (if applicable), High flow bypass system, One foot topo lines between the level lip and top of stream bank, Proposed drainage easement, and Design at ultimate build -out. 613, 3. Section view of the level spreader (1" = 20' or larger) showing: Underdrain system (if applicable), Level lip, Upslope channel, and 40 Downslope filter fabric. .wit AP 4. A date -stamped photograph of the filter strip that clearly shows the type of vegetation that is present. L4 MD Ac"4C1 *4t 5. A construction sequence that shows how the level spreader will be protected from sediment until the entire drainage area is stabilized. 774+r1+ 6. The supporting calculations. 1wr 7. A copy of the signed and notarized operation and maintenance (0&M) agreement. N� B. A copy of the deed restrictions (if required). Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Part III, page i of 1 NCDENR STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT This form must be completely filled out, printed and submitted. DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEET)I IAP,RWECTONEORMATION Project name AAV Company Contact name Bryan M. Dick Phone number 919-854-6252 Date September 1, 2008 Drainage area number 3 II lDESIGNIINF.ORMATION For Level Spreaders Receiving Flow From a BMP Type of BMP Drawdown flow from the BMP cis For Level Spreaders Receiving Flow from the Drainage Area Drainage area 18,263.00 ftz Impervious surface area 10,889.00 ft2 Percent impervious 59.62 % Rational C coefficient 0.75 Peak flow from the 1 inlhr storm 0.31 cfs Time of concentration 1,50 min Rainfall intensity, 10-yr storm 2.5 inlhr Peak flow from the 10-yr storm 0.79 cis Where Does the Level Spreader Discharge? To a grassed bioretention cell? N (Y or N) To a mulched bioretention cell? N (Y or N) To a wetland? N (Y or N) To a filter strip or riparian buffer'? Y (Y or N) Please complete filter strip characterization below. Other (specify) Filter Strip or Riparian Buffer Characterization (if applicable) Width of grass 50.00 It Width of dense ground cover 0,00 it Width of wooded vegetation 0.00 it Total width 50,00 it Elevation at downslope base of level lip 8.00 fmsl Elevation at top of bank of the receiving water 7.80 fmsl Slope (from level lip to to top of bank) 0.40 % OK Are any draws present? N (Y or N) OK Level Spreader Design Forebay surface area Feet of level lip needed per cis Answer 'Y' to one of the following: Length based on the t inlhr storm? Length based on the 10-yr storm? Length based on the BMP discharge rate? Design flow Is a bypass device provided? 60.00 sq ft OK 13 ft/cis N (Y or N) Y (Y or N) N (Y or N) 0.79 cis N (Y or N) A bypass device is not needed. Form SW401-Level Spreader, Filter Strip, Restored Rrpanan Buffer-Rev.5 Parts I. and it. Oesign Summary, page 1 of 2 Length of the level lip Are level spreaders in series? Bypass Channel Design (if applicable) Does the bypass discharge through a wetland? Does the channel enter the stream at an angle? Dimensions of the channel (see diagram below): M B W y Peak velocity in the channel during the 10-yr storm Channel lining material 15.00 ft Level spreader length OK. N (Y or N) (Y or N) Do not complete this section of the worksheet. (Y or N) Do not complete this section of the worksheet. Do not complete this section of the worksheet. ft Do not complete this section of the worksheet. ft Do not complete this section of the worlcshest. ft Do not complete this section of the worksheet. ft Do not complete this section of the worksheet. Cfs Do not complete this section of the worksheet. Do not complete this section of the worksheet. • w • ------------ Nl i R i � l M t;FP Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Parts I. and It. Design Summary, page 2 of 2 III. REQUIRED ITEMS CHECKLIST Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Page/ Plan tnttia Sheet No. 1. Plans (t" - 50' or larger) of the entire site showing: Design at ultimate build -out, Off -site drainage (if applicable), Delineated drainage basins (include Rational C coefficient per basin), Forebay (if applicable), High flow bypass system, Maintenance access, Proposed drainage easement and public right of way (ROW), and Boundaries of drainage easement. %J� C 13 2. Plan details (1 " = 30' or larger) for the level spreader showing: Forebay (if applicable), High flow bypass system, One foot topo lines between the level lip and top of stream bank, Proposed drainage easement, and Design at ultimate build -out. C �3 3. Section view of the level spreader (V = 20' or larger) showing: Underdrain system (it applicable), Level lip, Upslope channel, and Downslope filter fabric. 4. A date -stamped photograph of the filter strip that clearly shows the type of vegetation that is present. 5. A construction sequence that shows how the level spreader will be protected from sediment until the entire drainage area is stabilized. SIm-0 04 fAllt 6. The supporting calculations. 7. A copy of the signed and notarized operation and maintenance (0&M) agreement. -AMD AA B. A copy of the deed restrictions (if required). 9 �pp� � cF° Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Part M. page 1 of 1 -` o� warF9 It � �aP Oy a r NCDENR a STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT This form must be completely filled out, printed and submitted. DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEET)I 11PROJEClINF,ORMATION Project name AAV Company Contact name Bryan M. Dick Phone number 919-854-6252 Date August 25, 2008 Drainage area number 4 For Level Spreaders Receiving Flow From a BMP Type of BMP Drawdown flow from the BMP For Level Spreaders Receiving Flow from the Drainage Area Drainage area Impervious surface area Percent impervious Rational C coefficient Peak flow from the 1 irVhr storm Time of concentration Rainfall intensity, 10•yr storm Peak flow from the 10-yr storm Where Does the Level Spreader Discharge? To a grassed bioretention cell? To a mulched bioretention cell? To a wetland? To a filter strip or riparian buffer? Other (specify) Filter Strip or Riparian Buffer Characterization (if applicable) Width of grass Width of dense ground cover Width of wooded vegetation Total width Elevation at downslope base of level lip Elevation at top of bank of the receiving water Slope (from level lip to to top of bank) Are any draws present? Level Spreader Design Forebay surface area Feet of level lip needed per cfs Answer "Y" to one of the following: Length based on the 1 inlhr storm? Length based on the 10-yr storm? Length based on the BMP discharge rate? Design flow is a bypass device provided? cfs 25,884.00 ie 25,064.00 fe 96.83 % n 9A 0.58 cfs 1.10 min 2.5 inlhr 1.46 cfs N (Y or N) N (Y or N) N (Y or N) Y (Y or N) Please complete fitter strip characterization below. 5.00 It 0.00 ft 45.00 ft 50.00 ft 10.00 fmsl 8.80 fmsl 2.40 % OK N (Y or N) OK 376.00 sq ft OK 60 fvcfs N (Y or N) Y (Y or N) N (Y or N) 1.46 cfs N (Y or N) A bypass device is not needed. Form SW401-Level Spreader, Filter Strip, Restored Riparian Butter-Rev.5 Parts I. and II. Design Summary, page 1 of 2 I-ength of the level lip *re level spreaders in series? 94.00 ft Level spreader length OK. N (Y or N) Bypass Channel Design (if applicable) Does the bypass discharge through a wetland? Does the channel enter the stream at an angle? Dimensions of the channel (see diagram below): M B w y Peak velocity in the channel during the 10-yr storm Channel lining material h•------------ M (Y or N) Do not compete this section of the woAsheet. (Y or N) Do not complete this section of the workstteet. Do not complete this section of the worksheet. ft Do not complete this section of the worksheet. ft Do not complete this section of the worksheet. ft Do not complete this section of the worksheet. ft Do not complete this section of the worksheet. CIS Do not complete this section of the worksheet. Do not complete this section of the worksheet. M Form SW 40t-Level Spreader, Filter Strip, Restored Riparian Buffer•Rev.5 Parts I. and il. Design Summary, page 2 of 2 III. REQUIRED ITEMS CHECKLIST Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification, Pagel Plan Initials Sheet No. �J/I7LJ G Z t. Plans (1" - 50' or larger) of the entire site showing: Design at ultimate build -out, Off -site drainage (if applicable), Delineated drainage basins (include Rational C coefficient per basin), Forebay (if applicable), High flow bypass system, Maintenance access, Proposed drainage easement and public right of way (ROW), and Boundaries of drainage easement. 6M-L C r✓ 2 2. Plan details (1" = 30' or larger) for the level spreader showing: Forebay (if applicable), High flow bypass system, One foot topo lines between the level lip and top of stream bank, Proposed drainage easement, and Design at ultimate build -out. L4MD (10 3. Section view of the level spreader (V = 20' or larger) showing: - Underdrain system (if applicable), Level lip, Upslope channel, and Downslope filter fabric. 4. A date -stamped photograph of the filter strip that clearly shows the type of vegetation that is present. 5. A construction sequence that shows how the level spreader will be protected from sediment until the entire drainage area is stabilized. 6. The supporting calculations. 7. A copy of the signed and notarized operation and maintenance (0&M) agreement. 8. A copy of the deed restrictions (if required). Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Part III, page 1 of 1 WDENR STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT This form must be completely filled out, printed and submitted. DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEET)t Project name Contact name Phone number Date Drainage area number For Level Spreaders Receiving Flow From a BMP Type of BMP Drawdown flow from the BMP For Level Spreaders Receiving Flow from the Drainage Area Drainage area Impervious surface area Percent impervious Rational C coefficient Peak flow from the 1 inlhr storm Time of concentration Rainfall intensity, 10-yr storm Peak flow from the 10-yr storm Where Does the Level Spreader Discharge? To a grassed bioretention cell? To a mulched bioretention cell? To a wetland? To a filter strip or riparian buffer? Other (specify) Filter Strip or Riparian Buffer Characterization (if applicable) Width of grass Width of dense ground cover Width of wooded vegetation Total width Elevation at downslope base of level lip Elevation at top of bank of the receiving water Slope (from level lip to to top of bank) Are any draws present? Level Spreader Design Forebay surface area Feet of level lip needed per cfs Answer 'Y" to one of the following: Length based on the 1 inihr storm? Length based on the 10-yr storm? Length based on the BMP discharge rate? Design flow Is a bypass device provided? AAV Company Andrew Wilson 919-854-6225 June 25, 2012 5 cfs 23,468.00 ft' 15,694.00 ft2 66.87 % 0.71 0.38 cfs 8.80 min 2.e7 inthr 1.10 cfs N (Y or N) N (YorN) N (Y or N) Y (YorN) 50.00 ft 0.00 ft 0.00 ft 50.00 ft 8.80 fmsl 8.00 fmsl 1.60 % n (Y or N) 80.00 sq ft 13 - fttcfs Please complete fitter strip characterization below. 0 X3 N (Y or N) Y (Y or N) N (Y or N) 1.10 cfs N (Y or N) A bypass device is not needed. DECEIVEM JUL 0 9 2012 BY:-_ Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Pads I. and II, Design Summary, page 1 of 2 Length of the level lip Are level spreaders in series? Bypass Channel Design (if applicable) Does the bypass discharge through a wetland? Does the channel enter the stream at an angle? Dimensions of the channel (see diagram below): M B W y Peak velocity in the channel during the 10-yr storm Channel lining material ♦ W ------------ } _ M 21.00 f1 Level spreader length OK. N (Y or N) (Y or N) Do not complete this section of the worksheet. (Y or N) Do not complete this section of the worksheet. Do not complete this section of the worksheet. ft Do not complete this section of the worksheet. ft Do not complete this section of the worksheet. ft Do not complete this section of the worksheet. ft Do riot complete this section of the worksheet. cfs Do not complete this section of the worksheet. Do not complete this section of the worksheet. i D I M ECEQVE JUL 0 9 2012 BY: Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Parts I. and II, Design Summary, page 2 of 2 Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. initial in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Pagel Plan Imbals Sheet No. o It k C % a 1. Plans (1" - 50' or larger) of the entire site showing: V"S Design at ultimate build -out, Off -site drainage (if applicable), Delineated drainage basins (include Rational C coefficient per basin), Forebay (if applicable), High flow bypass system, Maintenance access, Proposed drainage easement and public right of way (ROW), and Boundaries of drainage easement. 02 (tom 1N rri- 2. Plan details 0" = 30' or larger) for the level spreader showing: Forebay (if applicable), High Flow bypass system, One foot topo lines between the level lip and top of stream bank, Proposed drainage easement, and Design at ultimate build -out. b t,,N a*,- ?LAW1 - IJA oP&INA - fw"5 AO Inc 1369 "PL00 3. Section view of the level spreader (1" = 20' or larger) showing: - Underdrain system (if applicabte), Level lip, Upslope channel, and Downslope filter fabric. 4. A date -stamped photograph of the filter strip that cieady shows the type of vegetation that is present. 5. A construction sequence that shows how the level spreader will be protected from sediment until the entire drainage area is stabilized. 6. The supporting calculations. 7. A copy of the signed and notarized operation and maintenance (0&M) agreement. 8. A copy of the deed restrictions (if required). ECEI W E JUL 09 2012 0 Hy:�— Form SW401-Level Spreader, Filter Strip, Restored Riparian Buffer-Rev.5 Part III, page 1 of 1 Permit Plumber: SGv (to be provided by DWQ) Drainage Area Number: Filter Strip, Restored Riparian Buffer and Level Spreader Operation and Maintenance Agreement will keep a maintenance record on this BMP. This maintenance record will be kept in a log in a known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired or replaced immediately. These deficiencies can affect the integrity of structures, safety of the public, and the removal efficiency of the BMP. Important maintenance procedures: — Immediately after the filter strip is established, any newly planted vegetation will be watered twice weekly if needed until the plants become established (commonly six weeks). — Once a year, the filter strip will be reseeded to maintain a dense growth of vegetation — Stable groundcover will be maintained in the drainage area to reduce the sediment load to the vegetation. — Two to three times a year, grass filter strips will be mowed and the clippings harvested to promote the growth of thick vegetation with optimum pollutant removal efficiency. Turf grass should not be cut shorter than 3 to 5 inches and may be allowed to grow as tall as 12 inches depending on aesthetic requirements (NIPC, 1993). Forested filter strips do not require this type of maintenance. — Once a year, the soil will be aerated if necessary. — Once a year, soil pH will be tested and lime will be added if necessary. After the filter strip is established, it will be inspected quarterly and within 24 hours after every storm event greater than 1.0 inch (or 1.5 inches if in a Coastal County). Records of operation and maintenance will be kept in a known set location and will be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. BMP element: Potentialproblem: How I will remediate theproblem: The entire filter strip Trash/debris is present. Remove the trash/debris. system The flow splitter device The flow splitter device is Unclog the conveyance and dispose (if applicable) clogged. of any sediment off -site. The flow splitter device is Make any necessary repairs or damaged. replace if damage is too large for repair. MECEIVE JUL 09 2012 BY:----. Form SWU40I-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Pate 1 of 3 BMP element: Potentialproblem: How I will remediate theproblem: The Swale and the level The Swale is clogged with Remove the sediment and dispose lip sediment. of it off -site. The level lip is cracked, Repair or replace lip. settled, undercut, eroded or otherwise damaged. There is erosion around the Regrade the soil to create a berm end of the level spreader that that is higher than the level lip, and shows stormwater has then plant a ground cover and bypassed it. water until it is established. Provide time and a one-time fertilizer application, Trees or shrubs have begun Remove them. to grow on the swale or just downslo e of the level lip. The bypass channel Areas of bare soil and/or Regrade the soil if necessary to erosive gullies have formed. remove the gully, and then reestablish pro2er erosion control. Turf reinforcement is Study the site to see if a larger damaged or ripap is rolling bypass channel is needed (enlarge if downhill. necessary). After this, reestablish the erosion control material. The filter strip Grass is too short or too long Maintain grass at a height of if a licable . approximately three to six inches. Areas of bare soil and/or Regrade the soil if necessary to erosive gullies have formed. remove the gully, and then plant a ground cover and water until it is established. Provide lime and a one-time fertilizer application, Sediment is building up on Remove the sediment and the filter strip. restabilize the soil with vegetation if necessary. Provide lime and a one- time fertilizer application. Plants are desiccated. Provide additional irrigation and fertilizer as needed. Plants are dead, diseased or Determine the source of the dying. problem: soils, hydrology, disease, etc. Remedy the problem and replace plants. Provide a one-time fertilizer application. Nuisance vegetation is Remove vegetation by hand if choking out desirable species. possible. If pesticide is used, do not allow it to get into the receiving water. The receiving water Erosion or other signs of Contact the NC Division of Water damage have occurred at the Quality local Regional Office, or the outlet. 1 401 Oversight Unit at 919-733-1786. Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 ECE0VE' JUL a 9 2012 FiV._ Page 2 of 3.. _ .. Mil Permit Number: (to be provided by D[VQ) I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Project name:USMCB.AAV Company BMP drainage area number: Primary Discharge Outlets - 1.23A5.6 Print name: Carl Baker Title: Public Works Officer Address: 1005 Michael Rd. Phone: Signati Date: 7— C'-12.- Note: The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. wv04 , a Notary Public for the State of , llv W6. Vt , County of (1&SIb , do hereby certify that �� personally appeared before me this T day of L V 201�— , and acknowledge the due execution of the forgoing filter strip, riparian buffer, and/or level spreader maintenance requirements. Witness my hand and official seal, �. LEY VANDECOEVERING NOTARY PUBLIC ONSLOW COUNTY STATE OF NORTH CAROLINA SEAL My commission expires" JULDECEIVE-ft Ma o s ioiz BY — Form SWU40I-Level Spreader, Filter Strip, Restored Riparian BufferO&M-Rev.3 Page 3 of 3 f -J ROY COOPER Governor MICHAEL S. REGAN Secretary BRIAN WRENN Director October 2, 2020 Commanding Officer MCB Camp Lejeune c/o Neal Paul, Deputy Public Works Officer Bldg. 1005 Michael Road Camp Lejeune, NC 28547 NORTH CAROLINA Environmenia! Quality Subject: Permit Renewal State Stormwater Management Permit No. SW8 080907 USMC -- AAV Company High Density Commercial Sand Filter Project Ouslow County Dear Mr. Paul: The Wilmington Regional Office received a complete 8 year Stormwater Management Permit Renewal Application for the subject project on. The Division is hereby notifying you that permit SW8 080907 has been renewed on October 2, 2020, and shall be effective until July 2, 2028. for your records, please find enclosed a renewed, updated, and re -issued permit and a copy of the renewal application. Please keep this permit on file at all times. Please note that the renewed, updated, and re -issued permit does not impose new or different terms; it merely restates some of the previous terms to provide you with a better understanding of your obligations under the permit. The renewal and reissuance of this stormwater permit does not imply that the site is currently in compliance with the terms and conditions of this state stormwater permit. The plans originally approved on October 8, 2008 and mostly recently modified on October 1, 2012, will remain in full force and effect in accordance with the regulations set forth in Title 15A NCAC 2H.1000. This permit is subject to the conditions and limitations as specified therein. Please pay special attention to the conditions listed in this permit regarding the Operation and Maintenance of the BMP(s), recordation of deed restrictions, procedures for changes of ownership, transferring the permit, and renewing the permit. Failure to establish an adequate system for operation and maintenance of the stormwater management system, to record deed restrictions, to transfer the permit, or to renew the permit, will result in future compliance problems. If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing by filing a written petition with the Office of Administrative Hearings (OAH). The written petition must conform to Chapter 150B of the North Carolina General Statutes, and must be filed with the OAH within thirty (30) days of receipt of this permit. You should contact the OAH with all questions regarding the filing fee (if a filing fee is required) and/or the details of the filing process at 6714 Mail Service Center, Raleigh, NC 27699-6714, or via telephone at 919-431-3000, or visit their website at www.NCOAH.com. Unless such demands are made this permit shall be final and binding. If you have any questions, need additional copies of the permit or approved plans, please contact Daniel Sams in the Wilmington Regional Office, at (910) 796-7215 or dan.sams@ncdenr.gov. Sincerely, Brian Wrenn, Director Division of Energy, Mineral and Land Resources Enclosures: Attachment C — Permitting History Renewal Application Documents DES/dan:%StormwaterlPernits & Pro'ects120081080907 HD12020 10pen-nit 080907 cc: Wilmington Regional Office Stormwater File DEQ �� North Carolina Department of Environmental Quality 1 Division of Energy. Mineral and Land Resources _ Wilmington ReglonaI Office � 127 Cardinal Drive Extension I Wilmington. North Carolina 28405 °ip"��a"""•'""r0��'� 910.746.72E5 State Stormwater Management Systems Permit No. SW8 080907 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF ENERGY, MINERAL AND LAND RESOURCES 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 US Marine Corp Base Camp Lejeune AA Company Courthouse Road, Onslow County 1are7:il :121 construction, operation and maintenance of five (5) sand filters 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 Energy, Mineral and Land Resources and considered a part of this permit. This permit shall be effective from the date of issuance until July 2, 2028, and shall be subject to the following specified conditions and limitations: I. DESIGN STANDARDS This permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data. 2. This stormwater system has been approved for the management of stormwater runoff as described in Section 1.6 on page 3 of this permit. The stormwater controls 1, 2, 3, 4, and 5 have been designed to handle the runoff from 25,066 sf BUA (sand filter #1), 13,292 sf BUA (sand filter #2), 13,537 sf BUA (sand filter #3), 25,064 sf BUA (sand filter #4), and 23,217 sf BUA (sand filter #5) of impervious area, respectively. 3. The tract will be limited to the amount of built -upon area as indicated in Sections 1.2 and 1.6 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 areas of this project must be directed into the appropriate permitted stormwater control system. Page 1 of 4 State Stormwater Management Systems Permit No. SW8 080907 6. The following design criteria have been provided in the sand filters and must be maintained at design condition: Sand Sarid Sand Sand Filters#1 RMeri42 1.Sand Flterg#3 Flterj#4 F,ilterj#,5,:t acres: 0.58 0.62 0.38 0.59 0.54 jk?g�in*ageArea, 25,390 26,932 16,024 25,884 23,468 None None None None None Total Imar►+ious SurfaCeS, ft.: 25,066 13,292 13,537 25,064 23,217 De-ssi nlStorrn inches: 3.7 3.7 3.7 3.7 3.7 JVV59 0aIiSVL51 me, ft 7,551 3,361 3,328 7,421 6,232 (SandIF.ilte�Ti Open Closed Closed Open Closed Sand Flier Bottom Elevation, ft: 8.7 6.0 &0 9.04 7.5 SH, WL, ff 6.5 4.0 5.5 6.24 6.5 Surface Area @design Elevation, 5ed. Basin (As), ftz: 2,270 384 336 1,057 854 Sand Filter , ft2: 2,250 1,504 1,992 3,123 2,262 JFifte'rjP_ermealii1 ", ffffl 3.5 3.5 3.5 3.5 3.5 IDraRo-w- �Ti hrs: 23 15.3 11.5 22.6 18.9 IReceiTting Stream/Rive.r s New River/White Oak Basin: Stream Index NumberF 19- 72 fClassificatton of Water na s Bod ;rams . 5A HWQ 7. No direct discharges to SA waters are allowed. The runoff exiting each sand filter must be directed to a vegetated buffer and must be effectively infiltrated prior to reaching surface waters. II. SCHEDULE OF COMPLIANCE The stormwater management system shall be constructed in its entirety, vegetated and operational for its intended use prior to the construction of any built -upon surface. 2. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 3. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency. The 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, filter media, flow spreader, catch basins, piping and vegetated filter. g. A clear access path to the bypass structure must be available at all times. Page 2 of 4 State Stormwater Management Systems Permit No. SW8 080907 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 via appropriate easements 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. The permittee shall submit final site layout and grading plans for any permitted future areas shown on the approved plans, prior to construction. 11. 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. 12. The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements of the permit. Within the time frame specified in the notice, the permittee shall submit a written time schedule to the Director for modifying the site to meet minimum requirements. The permittee shall provide copies of revised plans and certification in writing to the Director that the changes have been made. Page 3 of 4 State Stormwater Management Systems Permit No. SW8 080907 III. GENERAL CONDITIONS This permit is not transferable to any person or entity except after notice to and approval by the Director. At least 30 days prior to a change of ownership, or a name change or the permittee or of the project, or a mailing address change, the permittee must notify the Division by submitting a completed and signed Name/Ownership Change form to the Division of Energy, Mineral and Land Resources, accompanied by the necessary documentation as listed on the form. The approval of this request will be considered on its merits and may or may not be approved. 2. The permittee is responsible for compliance with all permit conditions until such time as the Division approves the transfer request. Neither the sale of the project area in whole or in part, nor the conveyance of common area to a third party shall be considered an approved permit transfer. 3. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to enforcement action by the Division, 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 DEQ 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 issued shall continue in force and effect until the permittee files a request with the Division for a permit modification, transfer, renewal, or rescission; however, these actions do not stay any permit conditions. 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 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 reissued this the 2th day of October 2020, NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION 7,, rian Wrenh,it r Division of Energy, Mineral and Land Resources By Authority of the Environmental Management Commission Page 4 of 4 I]FNII H tNF (}NI Y 5eceiad Fee Paid Permit Number L��ate I OHO ik5UP f 5� 5"— 1 90 O O NC DEo Division of Energy, Mineral and Land Resources STATE STORMWATER: PERMIT RENEWAL APPLICATION FORM In accordance with 15A NCAC 2H.1045(3), the current permit holder shall renew their high density permit 180 days prior to its expiration. Renewed permits are valid for a period of 8 years per Session Law 2011-398 (SB 781) Section 60.(c). This application form is for permit renewals only. A. PROJECT INFORMATION 1. State Stormwater Permit Number: SW8 080907 2. Project name: COURTHOUSE BAY AAS &r4Pn #y 3. Project street address: XXX City: MCB Camp Lejeune _ _ County: Onslow ZIP : 28542 4. What, if any, changes have been made to the project as permitted? NIA If the project has changed from the original approved plans, please complete SWU-101 fora Major Modification or Minor Modification Application form available at: https://deg.nc.gov/about/divisions/energ}� mineral-land-resources/energy-mineral-land-rules/stormwater-program/post-construction. B. PERMITTEE INFORMATION If changes to the permittee or project name have been made, please complete either the Permit Update form or the Permit Transfer form available at: htips://deq,nc.gov/about/divisions/energy-mineral-land- resources/energy-mineral-land-rules/stormwater_prooram/post-construction. State Stormwater Permits do not automatically transfer with the sale of the property. 1. Current Permit Holder's Company Name/Organization: MCB Camp Leleune 2. Signing Official's Name: Neal Paul 3. Signing Official's Title: Deputy Public Works Division 4. Mailing Address: MCB Camp Lejeune 1005 Michael Rd. City: MCB Camp Leleune _ _. _. State: NC ZIP: 28547-2521 5. Street Address: City: State: ZIP: 6. Phone: (910) 451-2213 Email: neal.paul@usmc.mil ECEI Y SEP 14 2020 BY. Stormwater Permit Renewal Form Page 1 of 3 May 11, 2018 C. SUBMITTAL REQUIREMENTS Submit the application package to the appropriate DEMLR Regional Office (Coastal, SA Waters) or DEMLR Central Office (Urbanizing Areas Ph 2, USMP, Non -Coastal HQW/ORW). Only applications packages that include all required items listed below will be accepted and reviewed. Initial each item below to indicate that the required information is provided in the application package: MCT 1. A permit application processing fee of $505.00 payable to NCDEQ. MCT 2. One original signed hard copy and one electronic copy of this completed form. The signing official named on this application to represent the current permittee must meet one of the following: a. Corporation — a principle executive officer of at least the level of vice-president; b. Limited Liability Company (LLC) — a manager or company official as those terms are defined in G.S. 57D "North Carolina Limited Liability Company Act;" c. Public Entity — a principal executive officer, ranking official, or other duly authorized employee; d. Partnership or limited partnership — the general partner; e. Sole proprietor; or f. Letter of authorization signed by one of the signatories noted in a — e above authorizing the signature of another entity. MCT 3. One hard copy and one electronic copy of recorded documents required by the original permit that have not yet been received by DEMLR, including: deed restrictions, protective covenants, condominium/planned community declaration and easements. if the project has been built, include documentation that the maximum BUA per lot or maximum total BUA has not been exceeded. If the project has not been built, include a signed agreement that the final recorded deed restrictions and protective covenants will be submitted at a later date. MCT 4. O&M Agreements, Please select one: ® I have a copy of the current recorded O&M Agreement for all SCMs, and I will continue to keep this on file with the permit; or ❑ I do not have a copy of the current recorded O&M Agreement for all SCMs and am requesting a copy be sent to me. I agree to keep this on file with the permit. MCT 5. Designer Certifications, Please select one: ❑ A copy of the certification(s) confirming that the project was built in accordance with the approved plans have been previously provided to the Division; or ® A copy of the certification(s) confirming that the project was built in accordance with the approved plans are enclosed; or ❑ The project has not yet been built. MCT 6. [IF APPLICABLE] If the project has been built, one original hard copy and one electronic copy of a signed, sealed, and dated letter from a licensed professional stating that the SCMs have been inspected, and that they have been built and maintained in accordance with the permit. 7. [IF APPLICABLE] When the permittee is a corporation or a limited liability corporation (LLC): Provide one hard copy and one electronic copy of documentation from the NC Secretary of State, or other official documentation, which supports the titles and positions held by the persons listed in Section C.2 per 15A NCAC 2H. 1043(3)(b), httgs://www.sosnc.gov/onlineservices/search/by title/ Business Registration ECEIVE SEP 14 2020 der: 6� Stormwater Permit Renewal Application Form Page 2 of 3 May 11, 2018 ti il,j1 �-s PE7TSTE 'ERTIFICATION I, the person legally responsible for the permit, certify that 1 have a copy of the Permit and O&M Agreement on site (or I will obtain a copy and it will be kept on site), that I am responsible for the performance of the maintenance procedures, and the site has been and will be maintained according to the O&M Agreement and approved plans. 1 agree to notify DEMLR of any problems with the SCMs or built -upon area and to submit the proper forms to modify or transfer the permit prior to any changes to the project, SCMqore ership. formation provided on this permit renewal application is, to the best of my knowledge, d comp ete. Signature: Date: L$ to NOT R TIO11 , I, { this the day. of Kµ{1 II 1 exec l o1Cbf wit ing instrument. Wit S0a A'QY p OZ tJBLIC N'6r6 Signatu Cou My corns;;; Moexpires , County of my hand and official seal, a Notary Public for the State of do hereby certify personally appeared before me 20'2 E, and acknowledge the due ECEIVEP SEP 14 2020 BY:___._ Stormwater Permit Renewal Application Form Page 3 of 3 May 11, 2018 ,� p � i a 1�i s.,li�+Htttflfrq�,r .x . . �,} i �� } r;r Ij. ll ��, ., i.� t.. ," . •fate7e;ri.{Flyjtti• Central Files: APS _ SWP _ 1 0i2i2020 Permit Number SW8080907 Permit Tracking Slip Program Category Status Project Type State SW Active Renewal with major mod Permit Type Version Permit Classification State Stormwater 2.00 Individual Primary Reviewer Permit Contact Affiliation dan.sams Coastal SWRule Coastal Stormwater - 2008 Permitted Flow Facility Facility Name AAV Company Camp Lejeune Location Address Courthouse Rd Camp Lejeune NC 28547 Owner Owner Name Commanding Officer Marine Corps Base Camp Lejeune DatestEvents Major/Minor Region Minor Wilmington County Onslow Facility Contact Affiliation Owner Type Government - Federal Owner Affiliation Robert A. Lowder Post Ln Building 12 Rm 244 Camp Lejeune NC 28542 Scheduled Orig Issue App Received Draft Initiated Issuance Public Notice Issue Effective Expiration 10/8/2008 9/14/2020 10/2/2020 10/2/2020 7/2/2028 Regulated Activities w Requested /Received Events State Stormwater- HD - Sand filters Outfall Waterbody Name Streamindex Number Current Class Subbasin Burd, Tina J From: Burd, Tina J Sent: Thursday, September 24, 2020 4:21 PM To: Prendergast CIV Talia M Subject: SW8 080907 - Courthouse Bay AAV Company The Wilmington Regional Office of the Division of Energy, Mineral and Land Resources (Stormwater Section) accepted the Stormwater Permit Renewal Application and $505.00 fee for the subject project on September 14, 2020. The project has been assigned to Dan Sams and you will be notified if additional information is needed. Best Regards, Tina Burd Administrative Associate II Wilmington Regional Office Division of Environmental Assistance & Customer Service Phone 910-796-7215 NCDEQ Wilmington Regional Office 127 Cardinal Drive Ext. Wilmington, NC 28405 Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. Application Completeness Review Checklist (Non -Transfers) - Short Version Project Name: AAV CID ryle4t3,_ Date Delivered to WIRO: Project County/Location: X) 5 LpL� i"'1 C.A BIMS Received/Accepted Date: Rule(s): El2017 Coastal 92008 Coastal 11 1995 Coastal BIMS Acknowiedged Date': ^� Phase II El Universal El1988 Coastal Permit Action: New Major Mod / Minor Mod / newal Permit Type: C-H— LD / LD Overall / HD &LD Combo General Permit / Offsite / Exempt / Rescission Development Type: Commercial / Residential Other Subdivided?: Subdivision or Single Lot Permittee Type & Documents Needed: New Permit #2: Existing Permit #: �250a 08 0910� Expriation Date3: D7�D LJOffsite to SW8: Lot is in Master Permit? FIE Cert on File? Property Owner(s)El � Purchaser Lessee HOA Developer Viable? 1AUt Viable? Viable? El Viable? FIViabie? Deed Purchase Agmt Lease Election Minutes MNot Subdivided: Deed Subdivision: Common Area Deed Paperwork Lr z-- Application ,� Fee: F505 (within 6rno) Check#(s): re-1--so [--]No Fee n5upplement2 (1 new form or for older forms: 1 original per SCM) FIO&M2 Soils Report (infil or PP) FICaiculations (signed/sealed) Deed Restrictions, if subdivided2 ElProject Narrative DUSGS Map (oron file?) Subject to SA?: Y / N Subject to ORW?: Y / N Plans (2 Sets) IDPE Certification Electronic Copies Easements, Recorded (2017 Rules) NOTES: 'Enter BIMS Acknowledged Date on this Sheet 2For New Projects -Enter New Permit # on Supplements & Deed Restiction Templates 3If w/in 6 months and they are requesting a mod, STOP. Needs a renewal first. 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