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HomeMy WebLinkAboutSW6101204_CURRENT PERMIT_20110303STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW DOC TYPE CURRENT PERMIT APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE1�D31D�7 YYYYMMDD J&i� MCDENR North Carolina Department of Environment and Natural Resources Beverly Eaves Perdue Governor Mr. Craig Lantz Fort Bragg DPW-WMB 2175 Reilly Road Stop A Fort Bragg, NC 28310-5000 Division of Water Quality Coleen H. Sullins Director March 3, 2011 Subject: Stormwater Permit No. SW6101204 SOF Operational Communications Facility High Density Bio-Retention Project Cumberland County Dear Mr. Lantz: Dee Freeman Secretary Ro I [R@120wlq� ti0U 8 ? i:012 DENR - WATEP 6Tj—A ITY WeUand- S ratwatc• Branch The Stormwater Permitting Unit received a complete Stormwater Management Permit Application for SOF Operational Communications Facility on March 1, 2011. Staff review of the plans and specifications has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 21-1.1000 and Session Law 2006-246. We are forwarding Permit No. SW6101204, dated March 3, 2011, for the construction, operation and maintenance of the subject project and the stormwater BMPs. Note that this permit is for Phase II of this facility; and treats a portion of Phase I that is referred to in the permit as offsite area. The remaining portions of Phase I will be permitted separately or as a modification to this permit. This permit shall be effective from the date of issuance until March 3, 2021, and shall be subject to the conditions and limitations as specified therein. Please pay special attention to the Operation and Maintenance requirements in this permit. Failure to establish an adequate system for inspection and maintenance of the stormwater management system will result in future compliance problems. If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing upon written request within thirty (30) days following receipt of this permit. This request must be In the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless such demands are made this permit shall be final and binding. This project will be kept on file at the Fayetteville Regional Office. If you have any questions, or need additional information concerning this matter, please contact Robert Patterson at (919) 807-6375; or robert.patterson@ncdenr.gov. Wetlands and Stormwater Branch 1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Location: 512 IN Salisbury St. Raleigh, North Carolina 27604 Phone: 919-807-6300 \ FAX: 919-807-64941 Customer Service: 1.877.623-6748 Internet: www.ncwaterquality.org An Equal Opportunity \ Affmnative Action Employer NorthCarolina Naturally Mr. Craig Lantz SW6101204 — SOF Operational Communications Facility March 3, 2011 Sincerely, for Coleen H. Sullins cc: Ms. Thu Truitt, PE — Teng and Associates Fayetteville Regional Office — Mike Lawyer SW6101204 File Page 2 of 2 State Stormwater Permit STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY STATE STORMWATER MANAGEMENT PERMIT HIGH DENSITY DEVELOPMENT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO Fort Bragg Directorate of Public Works (DPVvg SOF Operational Communications Facility Shughart Way (-0.21 miles east of Malvesti St.), Fort Bragg, Cumberland County FOR THE construction, operation and maintenance of four (4) bioretention cells in compliance with the provisions of Session Law 2006-246 and 15A NCAC 2H .1000 (hereafter referred to as the "stormwater rules') and the approved stormwater management plans and specifications and other supporting data as attached and on file with and approved by the Division of Water Quality and considered a part of this permit. This permit shall be effective from the date of issuance until March 3, 2021, and shall be subject to the following specified conditions and limitations: I. DESIGN STANDARDS 1. This permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data. 2. This stormwater system has been approved for the management of stormwater runoff as described in Section 1.7 of this permit. The stormwater control has been designed to handle the runoff from 119,828 square feet of impervious area. 3. The tract will be limited to the amount of built -upon area as indicated in Section 1.7 of this permit, and per the application documents and as shown on the approved plans. 4. All stormwater collection and treatment systems must be located in either dedicated common areas or recorded easements. The final plats for the project will be recorded showing all such required easements, in accordance with the approved plans. 5. The runoff from all built -upon area within the permitted drainage area of this project must be directed into the permitted stormwater control system. 6. The built -upon areas associated with this project shall be located at least 30 feet landward of all perennial and intermittent surface waters. Page 1 of 6 State Stormwater Permit Permit No. SW6101204 5. The following design criteria must be maintained at desig a. Drainage Area, acres: Onsite, ft2: Offsite, ft2: b. Total Impervious Surfaces, Buildings`, ft2: Streets/Parking* Sidewalks*, ft2: Other*, ft2: Existing to remai Offsite, ft2: c. Design Storm, inches: d. Max. Ponded Depth, inche e. Seasonal High Water Tabl f. Planting Media Depth, feet g. Cell Dimensions, feet: h. Planting Elevation, fmsl: i. Top Surface Area, ft2: j. Permitted Storage Volume, k. Bypass / Storage Elevation I. Drawdown Time, hours: m. Underdrain Diameter, inch n. Number of plant species p o. Receiving Stream/River Basin: p. Stream Index Number: q. Classification of Water Body: *Onsite impervious surface II. SCHEDULE OF COMPLIANCE have been provided n condition: Cell 1 C 1.92 1. 83,635 4 0 3 ft2: 52,941 5 0 2 ft2: 36,878 0 1,965 0 9,529 0 n*, ft2: 4,569 1, 0 2 1.0 1. s: 12.0 1 e, fmsl: 237.8 2 3 3 107x69 1 251.0 2 7,580 6, ft3: 7,060 6, fmsl: 252.0 2 6 6 es: 4.0 4. rovided: 9 9 in the bioretention cells and ell Cell Cell 36 0.36 0.32 ,063 15,682 13,939 ,499 0 0 ,321 8,842 7,724 ,322 0 0 7,372 7,724 0 0 0 0 735 1,470 0 ,264 0 0 0 1.0 1.0 .0 12.0 9.0 36.4 236.0 236.0 2 2 03x75 45x20 79x20 53.0 249.5 247.5 687 909 1,490 687 737 966 54.0 250.5 248.25 6 6 0 4.0 4.0 grass sod grass sod UT to Tank Creek / Cape Fear 18-23-27 "C'. 3 3 0 3 5 2 The stormwater management system shall be constructed in its entirety, vegetated and operational for its intended use prior to the construction of any built -upon surface. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. The permittee shall at all time provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency. The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited to: a. Semiannual scheduled inspections (every 6 months). b. Sediment removal. C. Mowing and re -vegetation of slopes and the filter strip. d. Immediate repair of eroded areas. e. Maintenance of all slopes in accordance with approved plans. f. Debris removal and unclogging of all drainage structures, level spreader, filter media, planting media, underdrains, catch basins and piping. a. Access to the cell and outlet structure must be available at all times. 4. Records of maintenance activities must be kept for each permitted BMP. The reports will indicate the date, activity, name of person performing the work and what actions were taken. The permittee shall submit to the Division of Water Quality an annual summary report of the maintenance and inspection records for each BMP. The report i I Page 2 of 6 State Stormwater Permit Permit No. SW6101204 shall summarize the inspection dates, results of the inspections, and the maintenance work performed at each inspection. 6. The facilities shall be constructed as shown on the approved plans. This permit shall become void unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data. 7. 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. 8. If the stormwater system was used as an Erosion Control device, it must be restored to design condition prior to operation as a stormwater treatment device, and prior to occupancy of the facility. 9. Access to the stormwater facilities shall be maintained via appropriate recorded easements at all times. 10. The permittee shall submit to the Director and shall have received approval for revised plans, specifications, and calculations prior to construction, for any modification to the approved plans, including, but not limited to, those listed below: a. Any revision to any item shown on the approved plans, including the stormwater management measures, built -upon area, details, etc. b. Project name change. C. Transfer of ownership. d. Redesign or addition to the approved amount of built -upon area or to the drainage area. e. Further subdivision, acquisition, lease or sale of all or part of the project area. The project area is defined as all property owned by the permittee, for which Sedimentation and Erosion Control Plan approval or a CAMA Major permit was sought. f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. 11. The permittee shall submit final site layout and grading plans for any permitted future areas shown on the approved plans, prior to construction. 12. 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. 13. The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements of the permit. Within the time frame specified in the notice, the permittee shall submit a written time schedule to the Director for modifying the site to meet minimum requirements. The permittee shall provide copies of revised plans and certificatioh,in,writing to the Director that the changes have been made. III. GENERAL CONDITIONS This permit is not transferable except after notice to and approval by the Director. In the event of a change of ownership, or a name change, the permittee must submit a completed Name/Ownership Change form signed by both parties, to the Page 3 of 6 State Stormwater Permit Permit No. SW6101204 Division of Water Quality, accompanied by the supporting documentation as listed on page 2 of the form. The approval of this request will be considered on its merits and may or may not be approved. 2. The permittee is responsible for compliance with all permit conditions until such time as the Division approves a request to transfer the permit. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to enforcement action by the Division of Water Quality, in accordance with North Carolina General Statute 143-215.6A to 143-215.6C. 4. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances, which may be imposed by other government agencies (local, state, and federal) having jurisdiction. 5. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems. 6. The permittee grants DENR Staff permission to enter the property during normal business hours for the purpose of inspecting all components of the permitted stormwater management facility. 7. The permit issued shall continue in force and effect until revoked or terminated. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a permit modification, revocation and re -issuance or termination does not stay any permit condition. 8. Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual. 9. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. 10. The issuance of this permit does not prohibit the Director from reopening and modifying the permit, revoking and reissuing the permit, or terminating the permit as allowed by the laws, rules and regulations contained in Session Law 2006- 246, Title 15A NCAC 2H.1000, and NCGS 143-215.1 et.al. 11. The permittee shall notify the Division in writing of any name, ownership or mailing address changes at least 30 days prior to making such changes. 12. The permittee shall submit a renewal request with all required forms and documentation at least 180 days prior to the expiration date of this permit. Permit issued this the 3`d day of March, 2011. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION 22antz -)--Rzep fo�een H. Sullins, Director Division of Water Quality By Authority of the Environmental Management Commission Page 4 of 6 State Stormwater Permit Permit No. SW6101204 SOF Operational Communications Facility Stormwater Permit No. SW6101204 Cumberland County Designer's Certification I, , as a duly registered in the State of North Carolina, having been authorized to observe (periodically/ weekly/ full time) the construction of the project, (Project Name) for (Project Owner) hereby state that, to the best of my abilities, due care and diligence was used in the observation of the project construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications. The checklist of items on page 2 of this form is included in the Certification. Noted deviations from approved plans and specification: Signature Registration Number Date SEAL Page 5 of 6 State Stormwater Permit Permit No. SW6101204 Certification Requirements: 1. The drainage area to the system contains approximately the permitted acreage. 2. The drainage area to the system contains no more than the permitted amount of built -upon area. 3. All the built -upon area associated with the project is graded such that the runoff drains to the system. 4. All roof drains are located such that the runoff is directed into the system. 5. The outlet/bypass structure elevations are per the approved plan. 6. The outlet structure is located per the approved plans. 7. Trash rack is provided on the outlet/bypass structure. 8. All slopes are grassed with permanent vegetation, per the vegetation plan. 9. Vegetated slopes are no steeper than 3:1. 10. The inlets are located per the approved plans and do not cause short- circuiting of the system. 11. The permitted amounts of surface area and/or volume have been provided. 12. Required drawdown devices are correctly sized per the approved plans. 13. All required design depths are provided. 14. All required parts of the system are provided, such as a vegetated shelf, and a forebay. 15. The required system dimensions are provided per the approved plans. Please submit this Designer's Certification to: Fayetteville Regional Office Surface Water Protection 225 Green Street Systel Building Suite 714 Fayetteville, NC 28301-5043 Page 6 of 6 State Stormwater Permit Permit No. SW6101204 SOF Operational Communications Facility Stormwater Permit No. SW6101204 Designer's I Shannon Lynnl Geoly as a duly registered Professional Engineer in the State of North Carolina, having been authorized to observe (periodically/ weekly/ full time) the construction of the project, SOF Operationial Communications Facility (Project Name) for Fort Bragg DPw (Project Owner) hereby state that, to the best of my abilities, due care and diligence was used in the observation of the project construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications. The checklist of items on page 2 of this form is included in the Certification. Noted deviations from, approved plans and specification: - Grass sod installed in Cells 1 & 2. Planting media depth maintained as13 feet. Signature Registration N Date 0 ?)Y & 30 19114- SEAL 1111.1111/„ Q�H CARC) ,,, ,: �OP�FESSfpti9`'ly,", SEAL = 03863 '��rr IYNN"�(Ol�aVl'7 '���Illlll111�1 Page 5 of 6 Certification ✓ 1. ✓ 2. 3. State Stormwater Permit Permit No. SW6101204 The drainage area to the system contains approximately the permitted The di amour All the runoff All roo The of The of Trash All slot Veget; The in 11. The 12. Requi / 13. All re( 14. All rec and a —�15. The n nage area to the system contains no more than the permitted of built -upon area. ruift-upon area associated with the project is graded such that the rains to the system. drains are located such that the runoff is directed into the system. let/bypass structure elevations are per the approved plan. let structure is located per the approved plans. ick is provided on the outlet/bypass structure. ?s are grassed with permanent vegetation, per the vegetation plan. ed slopes are no steeper than 3:1. its are located per the approved plans and do not cause short- g of the system. mitted amounts of surface area and/or volume have been drawdown devices are correctly sized per the approved plans. A design depths are provided. >d parts of the system are provided, such as a vegetated shelf, system dimensions are provided per the approved plans. Please submit this Designer's Certification to: Fayetteville Regional Office Surface Water Protection 225 Green Street Syste► Building Suite 714 Fayetteville, NC 28301-5043 Page 6 of 6 t a . . i DWQ USE ONLY Dat Received Fee Paid Permit Number z 2t t.o SoS� SW61012-o,.I Applicable Rules: (select all that apply) ❑ Coastal SW -1995 ❑ Coastal SW - 2008 RrPh II - Post Construction ❑ 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 This form cony be photocopied for use as an original I I FEB 2 1 2011 I. GENERAL INFORMATION 1. Project Name (subdivision, facility, or establishment name - should be consistent with plans, specifications, letters, operation and maintenance agreements, etc.): SOP Operational Communications Facility 2. Location of Project (street address): Shughart Way, Fort Bragg, NC - Approximately NW intersection of Butner Rd and Reilly Street City:Fort Bragg County:Cumberland Zip:28307 3. Directions to project (from nearest major intersection): Starting at the intersection of Routes 87 and 401 in Fayetteville, NC. Travel north on Route 87 approximately 5 3 miles Then, turn left at Butner Road. Turn right at Malvesti St after 2.25 miles. Turn right onto Shughart Way after 0.21 miles. Travel 0.32 miles to the main entrance to the project site The project is located on the right side of the street. 4. Latitude:35° 16' 22" N I.ongitude:79° 00' 35" W of the main entrance to the project. IL PERMIT INFORMATION: 1. a. Specify whether project is (check one): ®New ❑Modification b.lf this application is being submitted as the result of a modification to an existing permit, list the existing permit number its issue date (if known) and the status of construction: ❑Not Started ❑Partially Completed* ❑ Completed* *provide a designer's 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 ❑NPDES Industrial Stormwater ®Sedimentation/Erosion Control: 3.58 ac of Disturbed Area 0404/401 Permit: Proposed Impacts b.If any of these permits have already been acquired please provide the Project Number, issue date and the type of each permitSOF Operational Communici Fonn SWU-101 Version 07July2009 Pagel of6 III. CONTACT INFORMATION 1. a. Print Applicant / Signing Official's name and title (specifically the developer, property owner, lessee, designated government official, individual, etc. who owns the oroiect): Applicant/Organ ization:Fort Bragg Directorate of Public Works (DPW) Signing Official & Title:Mr. Craig Lantz, Water Management Branch (WMB) b.Contact information for person listed in item la above: Street Address:2175 Reilly Road Stop A City:Fort Bragg State:NC Zip:28310-5000 Mailing Address (if applicable):2175 Reilly Road Stop A City:Fort Bragg State: NC Zip:28310-5000 Phone: ( 910 ) 396-2301 Email:iennings.c.lantz@us.army.mil Fax: ( 910 ) 907-2420 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: Mailing Address (if City: Phone: ( ) Email: State: Zip: State: Zip: Fax: 3. a. (Optional) Print the name and title of another contact such as the project's construction supervisor or other person who can answer questions about the project: Other Contact Person/Organization:Mr. Lee Ward Signing Official & Title:DPW/ Water Management Branch b.Contact information for person listed in item 3a above: Mailing Address:13ldg 0-9125, McKellars Road City:Fort Bragg State: NC Zip:28310 Phone: ( 910 ) 396-2301 Fax: ( 910 ) 907-2420 Email: lee.12.ward@us.army.mil Form SWU-101 Version 07Ju1y2009 Page 2 of 7 4. Local jurisdiction for building permits: Point of Contact: Phone It: IV. PROJECT INFORMATION 1. In the space provided below, briefly summarize how the stormwater runoff will be treated. The onsite first flush (1") will be treated by the use of 4 bioretention cells. 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.Identify the regulation(s) the project has been designed in accordance with: ❑ Coastal SW -1995 ® Ph II - Post Construction 3. Stormwater runoff from this project drains to the Cave Fear River basin. 4. Total Property Area: 3.58 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*:3.58 acres Total project area stall be calculated to exclude the folloring: the normal pool of impounded structures, the area between the banks of streams and rivers, the area beloeo the Normal High Water (NHW) line or Mean High Water (MHW) line, and coastal wetlands landwardfrom the NHW (or MHW) line. The resultant project area is used to calculate overall percent built upon area (8 UA). Non -coastal wetlmids lmudwnrd of the NHW (or MHW) line rimy be included in the total project area. 8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 = 59.5 9. How many drainage areas does the project have?2 (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. Form SWU-101 Version 07July2009 Page 3 of Basin Information Drainage Area 1 Drainage Area 2 Drainage Area 3 Drainage Area 4 Receiving Stream Name Unnamed Trib of Tank Creek Unnamed Trib of Tank Creek Unnamed Trib of Tank Creek Unnamed Trib of Tank Creek Stream Class C C C C Stream Index Number * 18-23-27 18-23-27 18-23-27 18-23-27 Total Drainage Area (so 83635 76562 15682 13939 On -site Drainage Area (so 83635 43063 15682 13939 Off -site Drainage Area (so 0 33499 0 1 0 Proposed Impervious Area** (so 52941 50321 8842 7724 I Impervious Area** total 63 66 56 1 55 Impervious— Surface Area Draina e Area 1 Draina e Area 2 Draina e Area 3 Draina e Area 4 On -site Buildings/Lots (so 0 23322 0 0 On -site Streets (so 1500 0 0 0 On -site Parking (so 35378 0 7372 7724 On -site Sidewalks (so 1,965 0 0 0 Other on -site (so 9529 0 0 0 Future (so 0 0 0 0 Off -site (sf) 0 25264 0 0 Existing BUA*** (so 4569 1735 1470 0 Total (so: 52941 50321 8842 7724 Stream Class and Index Number can be determined at: dttp://It2o.enr.state.nans/bitns/reports/reportsWB.htnd Impervious area is defined as the built upon area including, but not lintited to, buildings, roads, parking areas, siderualks, gravel areas, etc. Report only that amount of existing BUA that will rennin after development. Do not report any existing BUA that is to be removed and Which mill be replaced by stem BUA. 11. How was the off -site impervious area listed above determined? Provide documentation. See Impervious Surface Areas exhibit Sheet CC714. Projects in Union County: Contact DWQ Central Office .staff to check if the project is located within a Threatened S, Endangered Species watershed that may he subject to more stringent storrawaatter requirements as per NCAC 0213.0600. V. SUPPLEMENT AND O&M FORMS ��J�2ionTFYinTenle The applicable state stormwater management permit supplement an Aera(O&M) forms must be submitted for each BMP specified for this project. The latest versMArlbf thg fcrran can be downloaded from ://h2o.enr.state.nc.us/su/bmp forms.htm. RVI. SUBMITTAL REQUIREMENTS METWDSANDSTORMNTEggryB 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 htti)://h2o.enr.state.nc.us/su/bmp forms.htm. 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 httl2://h2o.enr.state.nc.us/su/msi maps.htm.) Please indicate that the following required information have been provided by initialing in the space provided for each item. All original documents MUST be signed and initialed in blue ink. Download the latest versions for each submitted application package from http://h2o.enr.state.nc.us/su/bmp forms.htm. Initials 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 13MP. 4. Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer to httl2://www.envliel12.orh/pages/onestol)exi2ress.litmlfor information on the Express program Forin SWU-101 Version 07.I01y2009 Page of and the associated fees. Contact the appropriate regional office Express Permit Coordinator for additional information and to schedule the required application meeting.) 5. A detailed narrative (one to two pages) describing the stormwater treatment/management for 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 1/2 mile of the site boundary, include the 1/2 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 MI-IW or NHW lines. • Delineate the vegetated buffer landward from the normal pool elevation of impounded structures, the banks of streams or rivers, and the MI-IW (or NI-IW) 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. I. 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 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 13MI's, the report should also include the soil type, expected infiltration rate, and the method of determining the infiltration rate. (Infiltration Devices submitted to WiRO: Schedule a site visit for DWQ to verifij the SHWT prior to submittal, (910) 796-7378.) 10. A copy of the most current property deed. Deed book: 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. htto'//www secretary.state.nc.us/Corporations/CSearcli.asl2x 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://h2o enr state ncus/su/bmi2 form s.htm#deed restrictions. Download the latest versions for each submittal. In the instances where the applicant is different than the property owner, it is the responsibility of the property owner to sign the deed restrictions and protective covenants form while the applicant is responsible for ensuring that the deed restrictions are recorded. By the notarized signature(s) below, the permit holder(s) certify that the recorded property restrictions and protective covenants for this project, if required, shall include all the items required in the permit and listed on the forms available on the website, that the covenants will be binding on all parties and persons claiming under them, that they will run with the land, that the required covenants cannot be changed or deleted without concurrence from the NC DWQ, and that they will be recorded prior to the sale of any lot. Fonn SWU-101 Version 07July2009 Page 5 of Vlll. 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:Thu Truitt, P.E. Consulting Firm: Teng and Associates Mailing Address:205 N. Michigan Ave Suite 3600 Phone: (312 ) 616-5000 x 091, EmaiktruittTT©teng.com State:IL Zip:60601 Fax: (312 ) 616-6069 IX. PROPERTY OWNER AUTHORIZATION (if Contact Information, item 2 has been filled out, complete this section) 1, (print or type name of person listed in Contact Information, item 2a) certify that I own the property identified in this permit application, and thus give permission to (print or type name of person listed in Contact Information, item 1a) with (print or type name of organization listed in Contact Information, item 1b) 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. Date: a Notary Public for the State of County of do hereby certify that before me this _ day of personally appeared and acknowledge the due execution'of the application for a stormwater permit. Witness my hand and official seal, SEAL My commission expires Form SWU-101 Version 07July2009 Page 6 of 7 X. APPLICANT'S CERTIFICATION I, (print or type Maine of person listen in Contact Information, itenn 2) Mr. Craig Lantz certify that the information included on this permit application form is, to the best of my knowledge, correct and that the project will be constructed in conformance with the approved plans, that the required deed restrictions and protective covenants will be recorded, and that the proposed project complies with the requirements of the applicable stormwater rules under 15A NCAC 2I-I .1000, SL 2006-246 (Ph. II -Post Construction) or SL 2008-211. Signature: ( 1 b i z Date a Notary Public for the State of do hereby certify that before me this _ day of 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 Form SWU-101 Version 071uly2009 Page 7 of Permit Number: �) W G IOIZ0\-I (to be provided by DWQ) ' WArFq N 9 > y O � STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM BIORETENTION CELL SUPPLEMENT This form must be filled out, printed and submitted. The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of the required information. Project name Contact name Phone number Date Drainage area number Site Characteristics Drainage area Impervious area Percent impervious Design rainfall depth Peak Flow Calculations Is pre/post control of the 1-yr, 24-hr peak flow required? 1-yr, 24-hr runoff depth 1-yr, 24-hr intensity Pre -development 1-yr, 24-hr peak flow Post -development 1-yr, 24-hr peak flow Pre/Post 1-yr, 24-hr peak control Storage Volume: Non-SAWaters Minimum volume required Volume provided Storage Volume: SA Waters 1.5" runoff volume Pre -development 1-yr, 24-hr runoff Post -development 1-yr, 24-hr runoff Minimum volume required Volume provided Cell Dimensions Pending depth of water Pending depth of water Surface area of the top of the bioretention cell Length: Width: -or- Radius Media and Soils Summary Drawdown time, ponded volume Drawdown time, to 24 inches below surface Drawdown time, total: In -situ soil: Soil permeability Planting media soil: Soil permeability Soil composition % Sand (by weight) % Fines (by weight) % Organic (by weight) Phosphorus Index (P-Index) of media Form SW401-Bioretention-Rev.8 July 30, 2009 jLee Ward 83,635 ftZ �y! -52'941'R�� 63.3% % J .i2-)9`�� 1.0 inch N (Y or N) in in/hr I ft3/sec L Ift3/sec ft3/sec 7,060.0. ft3 OK Ift3 r Ift3 ,I ft3 0 ft3 Ift, .'R '^;12inches OK 1.00 ft I ' . 7,580.0 ftZ OK _ 1071ft OK 69 it OK -6 hr OK 10.8 hr OK 16.8 hr f n/a in/hr OK �^ r1.00in/hr OK I 10% OK I 5% OK Total: 100% 30 (unitless) OK uuuuuuuuuuuuE__ u,.J DENR L3' Wellands g ur - r y &tar'aia• branch VA AR ,,\pu//Ulpq ram. �Q�FESSIpy9;�� SEAL !° 16 22 °41I111y11\\\N Z�1�till Parts I and It. Design Summary, Page 1 of 2 Permit Number: 5W6 jpj ?oq (to be provided by DWQ) Basin Elevabons Tenporary pool elevation Type d bordention cell (ansx 'Y to orty one of the two folloWng cliesbons): Is this a grassed cell? Is this a cell With trees/shrubs? Planting ele4ation (top of the mulch or grass sod layer) Depth of rrLAch Bottom of the planting m3dia Sol Ranting media depth Depth of vuadecl s" below panting media soil Are uncercrans being installed? How many dean od pipes are being installed? Meat factor of safety is Lised for sizing the Linclercrains? (See BNP N43v-d Section IZ3.6) Additional clistance betW the, bottom of the planting made and the bottom of the, cell to account for axlerdrains Bottom of the cell req&ecl SI-Iffelevolion Distarce from bottom to ShWF Internal Water Storage Zore (INNS) Does the design include IM Elevation of the top of the Lphurned elbow Separator of IM end Sxfiace Planting Flan NiTber ditree species NjTW of s1hriilb species Nxrber d herbaceous gruindcDAT species AdMonal Indorrretion Does vcILrne in excess of the design volLime bypass the bicrei cell? Does velure in excess of the design vclLrm Howe tedy clistribuk througib a vegetated filter? Mial is the length of To vegetated filter? (Y or" Y (Y or N) I.,v 251 firrsl .' 2 inches 247.83 frrs! 3.17 ft "�i, 0.33 ft Y ](Yor-N) 11 5 ift 246.5 ftd :.2377.8 ftTsl 8.7 ft A.. rr_...,..�. Am 1". I", U F—N777 (Y or ND I fird 251 ft F-2 4 3 CK Y(Y or N) CK N'.prJ(YorN Excess volne must pass ftmgh fifter. Does the design Lise a level spreader to evenly dshib(Ae flow? W f Is the BIW located at least 30 feet from stifacie, alders (50 feet if Y SAwaters)? i Is the BIVP located at least 100 feet from Water st;#yweils? I a Y Are the vegetated side slopes eqLd to or less than 3.1? Y. Is the BW located in a proposed drainage easement with access 14A" to a pbic Right of Way (FOM? Inlet vdcdty (from treatimal s0em) a, Show how flow is evenly distributed or M CK or N) CK or M CK Is the area suTaFdng the, call likely to mclergo cleveloperent in 1! N �,)J�j (Y or )I< TO future. Are the slopes drairing to the bioretention cell greater titan 200/o? (Y or CK Is the drainage area penneready stabilized? :Y, (Y or CK Piretreeirrient Used (Indicate Type Lead With an 'Xin the Shaded cell) Grdvd and grass x (elrdheS ggavel Ui 10by 3-5 ft of grass) Grassed Swale CK Faebay Other Form SW401-Bioreteintion.Rev.8 Juty 30. 2009 Paris I and 11. Design Summary, Page 2 of 2 Permit No: ,W(V(r.A2_Y� (to be assigned by DWQ) Jul. REwFia)nEwa-ECt sr . Please in icate the page or plan st ce rurbers vhae fhe supporting doamentalion can be found. An incomplete st6rrittal padoge will rests in a request for additional information This will delay final reAm and aprywd of fhe project. Iritial in the space prmided to in cicate the filloving design recl irerre is fare been net If the applicant has designated an aged, the agent may Tribal below. ff a requirement has not teen met, attadnjcatifiration Pagel Plan Initials Sleet No, f?SN C 506 N 1. Rans(1"-59 or larger)of he aNre site shoring: U-]la-CC-)py- Ixggnatdfirratebunldaa, - CR-site drainage (d applicable), - Delineated damage basins (include Rational C coefficient per bean), -Cell dmasiors, - Pretreatment system - Hgh Bev bypass system - Maintenance aooess, - Recorded drainage easemett and pudic rKjd of way (ROM. N)A - Dean out pipe locations, -Overflow deuce, and - Boundaries of drainage emernad. Cam, 2Plan details(V=3Qa larger) for the doretadion cell shooing: CC ] 112 - Celi dmeraors - Pretrekne t systems - Hgh Bow bypass systems - Maintenance access, - Remrderu dairage eassererd ad pudic right of vW (FUM• )J' A - Design at ultimate build uk - C fate drarge (if applicable), - Opt cut pipe locations, -Overflovdedce, and - Eb undaies of drainage easarvd. - Indicate the Rlyda(belween 10 and 30 RSN CO)12, a Seclimviewof the boretertion cell (1"=29 or lager) shoring: If —$tom - Side slopes, 3:1 or Iomer - l inclar ran system (d applicable), ad - Bvetadicn cell layers (gourd Ie✓el and slope, pre-treahmt, pawing depth much depth fill media depth wa h sad, filter fabric (or dnoldrg store if appicable), J0 store, urderdars (d applicable), SHAT Iemel(s), and overflow structure] R Sal $101 -5311 4. A soils report that is classed upon at actual field irrvcstigaion, soil borings, and infiltration tests The }�'10f1 results d tie soils report moue be verified in the field by D✓tGl, �' mrpletirg & submitfirg the soils oeS A Rom(+irNesbgabcn regea form Oxriy soil maps ae not an addable same of soils irdcanal m Al J elevations, shall be in feel min sea lee (find). Results of soils tests of both Bte paling soil and the in afu soil mst include -Soil permeability, - Soil oorrp(sition M sad, %fines, %orgaic), and - P4detc RSN IPIOf.LP]p 7�5. Adaalel platting plan (1"=20or Iager) premed by a qualified indvidtal sftonrg V_eo - Avariety of stdtale species, - Sim, spacing ad locations d patfirg, - Total gtartity of each type of pad specified, - A parting detail, -The source nursery for the pads, and - Fertile ad watering req irerrerts to establish vtgetel m. R SN C61I01 B. An assurance fret tte installed systemvvill meet dessert specifications upon Tribal operation orce Ba Er051'0h project is complete and flte entire ciairage aea is stabiload. R AJ Corfu fl0. . A corstruddat %Wence Bta shoms howtfe borelattion odl will be poterled from sediment until the G entire dainage area is stabilbn d. R SNi Cnf B The supporting calclaatiaors(inducing urcfeciain calalafiors, if aoicatle). Pik 9. A oDW of fhe signed and ndauned inspection and rreirdena oe (INA agearant RSN >J 111 Fenn SW401-Bioretention.Rev.7 Part III, Page 1 of 1 NCDENR Permit Number: S u� �J' o i'0_ (to be provided by DWQJ of WAT o,'PyOG y v � r O T STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM BIORETENTION CELL SUPPLEMENT This form must be filled out, printed and submitted. The Required Items Checklist (Part III) must be printed, filled out and submitted along with all of the required information. Project name Contact name Phone number Dale Drainage area number Site Characteristics Drainage area Impervious area Percent impervious Design rainfall depth Peak Flow Calculations Is pre/post control of the 1-yr, 24-hr peak Flow required? 1-yr, 24-hr runoff depth 1-yr, 24-hr intensity Pre -development 1-yr, 24-hr peak flow Post -development 1-yr, 24-hr peak flow Pre/Post 1-yr, 24-hr peak control Storage Volume: Non•SA Waters Minimum volume required Volume provided StomgeVolume: SAWaters 1.5" runoff volume Pre -development 1-yr, 24-hr runoff Post -development 1-yr, 24-hr runoff Minimum volume required Volume provided Cell Dimensions Fording depth of water Fording depth of water Surface area of the top of the bioretention cell Length: Width: -or- Radius Media and Soils Summary Drawdown time, ponded volume Drawdown time, to 24 inches below surface Drawdown time, total: In situ soil. Soil permeability Planting media soil: Soil permeability Soil composition • Sand (by weight) • Fines (by weight) • Organic (by weight) ( ", ° ��26,562 ft2 °;50321ft2 65.7% % h ; • 1.0 inch F7777—W-77,11(YorN) rl in !i: i`,tIin/hr ft3/sec h3/sec ft3/sec js . 1_e4_a ( • :� 'ir ! �*3H ft3 6G gpK " ft3 1ft3 ,.:.,..ft3 0 pp �;si717�;'12 inches OK 1.00 it f• 10' 6;687,0 ft2 OK "'-103ft OK [T V`3°Ii 75 ft OK (­Jr, ia,ift t '' ;`:Shr OK 10,8 hr OK �����runen�pp, 16.8 fir •�R�N CAR01�'•,, .n/a I,.n/hr �EisS14% i I��Ir,�OK IIt ,� irift OK SEAL l ..... 164,72 _ P It,..�'Nr d 5 ,i'85%t OK OK js to ;/aI u k t1'50%1 OK Total: 100% '4.ygNKAR - 1+1)) Phosphorus Index (P-Index) of media Form SW401-Bioretention-Rev.8 July 30, 2009 s.30. (unilless) OK Parts I and II. Design Summary, Page 1 of 2 Permit Number JI/v^OIOI Wq (to be provided by DWO) Basin Elevations Temporary pool elevation Type of bioretention cell (aswer' Y'to only one of fhe two following questions): Is the a gassed cell? Is this a cell with trees/stnbs? Playing ele✓ation (top of the midi or gass sad layer) Depth of mldn Bottom of the pa>bng media sell Ranting media depth Depth of washed sad below panting media soil Hew merry dean out ppes are being installed? Wet factor of safety is used for slang the udadia ass? (See BW Ivbnlal Section 123.6) Additional distace between the bottom of the panting media and the bottom of the cell to accout for utderdrairs Bottom d the cell required SMNf ele✓ation Dstatoe from bottom to SHV Vf Internal Water Sondge Zone (Mq Does the design induce IM Ele✓atim of the top of the t.phmed elbow Separation of IM and Surface Planting Ran Nastier of tree species Number of sh ib species N i ber of habaoeas gardoamr species Additional Information Does velure in excess of the design velure bypass the bioreterton cell? Does velure in excess of the design velure flow evenly distribW th oigh a vegetated filter? Vvtat is the length of the vegetated filter? Does the desigf Use a lead spreader to overly distribute flown Is the MV lowed at least 30 feet from wfaee waters (50 feet if SA waters)? Is the BW located at least 100 feet from water %4PIy wells? Are the vegetated side slopes equal to or less than 3:1? Is the BW located in a proposed drainage easement with access to a ptblic (Right dWay (RC"? Irlet velocity (frzmtreahlent system) Is the area s xm"rg the cell likely to undergo deelo orre nt in the fuhre? 1 Z '254.00fi sl •ON 1ft 248.5 firs! � 236.4 trsl 12.1 ft OK lyorm 253 ft 2 i;4 3 OK R2 Excess velure mist pass thraigh filter. Show how flow is eedy, dstnUed. 92 .li fVsec ClK -'`z `N. 'I(YorM ClK Are the slopes diaidrg to the doreterrtion cell Beater than ZO%? •'!';: Nr I (Y or N) Is the drainage area permanently stablized? J. Y'- (Y or N) Pretreatment Used (Indicate Type Used with an'X in the shaded cell) Gravel and gass (erodes gavel followed by 35 ft of grass) Grassed swale Porebay Cfher C� 7 KO X ;' I j Ot< Form SW401-Bioretention-Rev.8 July 30, 2009 Parts I and It. Design Summary, Page 2 of 2 Permit No: A I (to be assigned by DWQ) IIL 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 '`Nup. C 6(A1 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), - Cell dimensions, - Pretreatment system, - High flow bypass system, - Maintenance access, - Recorded drainage easement and public right of way (ROW), Nth, Y - Clean out pipe locations, - Overflow device, and - Boundaries of drainage easement. RSA C-506 2. Plan details (1' = 30' or larger) for the bioretention cell showing: Cell dimensions - Pretreatment system, - High flow bypass system, - Maintenance access, - Recorded drainage easement and public right of way (ROW), N 1N - Design at ultimate build -out, - Off -site drainage (if applicable), - Clean out pipe locations, - Overflow device, and - Boundaries of drainage easement. I1 -Indicate the P-Index between 10 and 30 3. Section the bioretention = 20' larger) view of cell (1' or showing: C-50(6 - Side slopes, 3:1 or lower - Underdrain system (if applicable), and - Bioretention cell layers (ground level and slope, pre-treatment, ponding depth, mulch depth, fill media depth, washed sand, filter fabric (or choking stone if applicable), 457 stone, underdrains (if applicable), SHWf level(s), and overflow structure] kktt� -10 I' 3r�q. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The t FOU v V1 results of the soils report must be verified in the field by DWO, by completing & submitting the soils be,sui t i investigation request form. County soil maps are not an acceptable source of soils information. All UU elevations shall be in feet mean sea level (fmsl). Results of soils tests of both the planting soil and the in situ soil must include: - Soil permeability, - Soil composition (% sand, % fines, %organic), and RSN -P-index. LAV�01 "LP10 L 5. A detailed plan fing plan (1' = 20' or larger) prepared by a qualified individual showing: l-irj0) 2 -A variety of suitable species, - Sizes, spacing and locations of plantings, - Total quantity of each type of plant specified, - A planfing detail, - The source nursery for the plants, and - Fertilizer and watering requirements to establish vegetation. o /� SN la 6. An assurance that the installed system will meet design specifications upon initial operation once the Q S� Y 1d� project is complete and the entire drainage area is stabilized. 7. A construction sequence that shows how the bioretention cell will be protected from sediment until the ?kW entire drainage area is stabilized. R� 8. The supporting calculations (including underdrain calculations, if applicable). � lh 9. A copy of the signed and notarized inspection and maintenance (I&M) agreement. SN L r&_ % A copy of the deed restriction. Form SW601-Bioretention-Rev.7 Part H. Page 1 of 1 ��A NCDENR Permit Number: Sub RJ 1 W (to be provided by DWO) o? FWaTpgOG > y o IV0 STCRIMNATER kNY44GBVENT PEFUTAPPLICATICN FORM --0. 0 401 CERTIRCXn APPLICA-11 FCRM BIORETE NTION C B-L SUPPLBVENT APR 0 5 ZUii 7hs fam at & be filled art, pnrged and s"ed ®I A�� The l�dred Iterm aieddist (Part lll) mist be printed, filled out and 9-bmtted along nigh ail o(the re pred irtrnreh'on. W Y I' PF.nJEC%l l4Ft7piM , M ON Rejed narre ISCF Operaboal Dairruicatios Fadlity' .. ..; , Contactnarte IleeNkrd Rena nrrber [910396-2301 Date (Febm y17,2011 I Drainage area nxrrber 13a " Site Characteristics Drainage area Inr)ervious arm Percent inparmo s Design rainfall depth Pmk FlowCalalations Is pre/post mr6hhl d tfhe 1-yr, 244T peak flaw regired? 1-yr, 244T midi depth 1-yr, 244Y intercity Pre-dewdoprrerf 1-yr, 244hn peak flow Post-dewdoprrent 1-yr, 24-1 r peak flaw Pre Post 1-yr, 24 Y peak control StoraWVdrma: Non-SAWaters Mrimmwkrre reWred Vdure provided StorageVdrme: SAVlkters 1.5' nrdf Velure Redeedopn at 1-yr, 244r midi Post-cle,doprrent 1-yr, 244T nrcff Mrrmm velure rapred Vdwm prowded Cell Dimensions Rxdng depth of voter Fording depth d vela Srface area d the top of the bio eten lion cell L"Ift Wdth: -or- Radts Madia and Soils Sunrery DrdAcbm fine, porded velure CraAcbm tine, to 24 in des belovsufam Clandum tirre, total: In-su sit: Soil perneebility Flantirg nada soil.' Soil perrrmbility Soil mrposibcn %Sand (by weight) %Fires (byndgt) %Orgarhic (tN vd9tt) Phosptarts Index (P-Index) of rreda Form SW401-Biorelention-Rev.8 July 30, 2009 . '15,682ft2 $) "W2 12 {'C 56.4% % ( 1.0 inch F-7 N--,(vorM I lin I: Iirfhr ft3/seC Ift3/sec ft3/sec . ;. • 708.0 ft3 ( 737.0ft3 CK �, • .. ft3 Ift3 0 ft3 } ;j ! , Aft 3 12inehes 1.00 ft I., ... 909.0 ft2 45 ft �. .20ft I' Ift 0 i'':'i lii 6tr CK f- 4 ai I':10.8tr CK 16.8 tr WA irvh, -4 , 1.65intrr C 0 - : 85% CK I 10% CK (!t: 50% CK Total: t00% F7--j . 4 30(uifless) CK :3� t P10V sJ 7 /UP rR - ..Z.--n—i p��H CA%;",e �4e�FisSItjN9ls SLAL 1647 1%'••.ygNKAR N .•`• zii+ii'" Parts I and II. Design Summary, Page 1 of 2 Permit Number: J W ffo be provided by DWOJ Basin Bevaticns Terporay pool elevation 25o.5o. In di Type of blordentlon cell (aswe'Y' to only one of the two fdloning glesdo s): Is this a gassed odl? cK Is this a cell Withtfeesrsllnbs? I. ' 1(YorM Rating de✓dion (top of the mldh or grass rod lays) I ' .. 249.5 frrsl Depth of mulch I'- 0 inches Insufficient mlch dept! , Mess installing grassed cell. Bottom of the planting media sell I - 247.E fnsl Rating made depth 2 ft Depth of ro shed sand belov plating media soil I :.. .' 0.33 ft Are uderdrairs being installed? ( �' Y ,. (Y or N) L.' Flownar y dmn out pipes are being installed? Ili : '�i. ... • '..' 11 CK Vdnat factor of safety is used for sung the utde'drairs? (See I ... t.:.5 (, CK BW Mai Section 12.3.6) , PWtiond distance between the bottom of the planting mo is and 1 ft the bottom of the cell to account for udg6are Bottom of the cell regufred 246.17 frrsl SMM ele/aion F -^r236 find Llsta D,from bottom to SI-WF 10.17 ft CK Does the design include IVS N '.. (Ycr M Berdion of the top of the upturned elboN final Separation of IM and Siface 249.5 It Ranting Ran Nmba of tree species (.-T A Nnbe of shrub spades I' . : N'A Nfrba of habaoi gandoom species I' ..: NA *VPLt1B Additional Information Wes velure in esuss of the design vdune bypass the Y ' ffor CK bionaterybon cell? ;' Does volume in etcess of the design velure floN overly distribted >�,:.f.'i (; 'N ' ; I (Y o M Excess whine mist pass through fitter. tiro xjh a vegetated file ; , Vlhat is the length of the vegetated filter? Does the design use aledspreader toesnlydistributeflx>� I';'N...I(YorM ShxHvhovflovise+stlyxistributed. Is the BW located al least 30 feel from sufacewaters (5o feet if Y .. -,, 'I(Yon" CK SAweters)? Is the BW located at least 100 feet from venter s.pply MIS? I - - Y - I (Yer M CK Are the vegetated side slopes equal to or less than 3:1? I. Y I(Ycr M CK Is the BWlocated inaproposed drainage easement withaccess I,'..:- NA {(YaM IrmffidentFM] cation to a public Rg t ofWay' (RCq? _ Inletvelocity(fromtrmrtmentsystem) 11ft/see CK Is the area surouning the Bell I Idely to undergo de✓dopment in N' (Y or CK thefLLue? Are the dopes dainingtothe bioretenlion cell greater than 20'/o? �I >.. N :](Yon CK Is the drainage armpornanenllystabilized? I•: "'..''` Y t{(Y«M CK REtreatmert UsW (Indicate Type Used Wth an X in the shaded cell) Gavel and gass (8-inc es gavel fdloned by 3-5 ft of gass) `i y Qsssod snae L;. _ - .., �. I 6. cK Forebay atha Ir I Form SW401-131orelention-Rev.8 July 30. 2009 Parts I and 11. Design Summary, Page 2 of 2 Permit No: 61b10 (to be assigned by DWQ) III. REQUIREDdTEMSCHECKLIST` 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 SheetNo. 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), - Cell dimensions, - Pretreatment system, - High flow bypass system, - Maintenance access, - Recorded drainage easement and public right of way (ROW), rJ)(} - Clean out pipe locations, - Overflow device, and - Boundaries of drainage easement. 2. Plan details (1' = 30' or larger) for the bioretention cell showing: -Cell dimensions - Pretreatment system, - High flow bypass system, - Maintenance access, p, - Recorded drainage easement and public right of way (ROW), N If x - Design at ultimate build -out, - Off -site drainage (if applicable), - Clean out pipe locations, - Overflow device, and - Boundaries of drainage easement. - Indicate the P-Index between 10 and 30 CC c1�,e 3. Section view of the bioretention cell (1' = 20' or larger) showing: L �o - Side slopes, 3:1 or laver - Underdrain system (if applicable), and - Bioretention cell layers [ground level and slope, pre-treatment, pending depth, mulch depth, fill media depth, washed sand, filter fabric (or choking stone if applicable), #57 stone, underdrains (if applicable), SHWT level(s), and overflow structure] 4. A soils report that is based upon an actual field investigation, soil borings, and infiltration tests. The F"dAytud�0f1 results of the soils report must be verified in the field by DWQ, by completing & submitting the soils be54r VApo(}investigation request form. County soil maps are not an acceptable source of soils information. All ' elevations shall be in feet mean sea level (fmsl). Results of soils tests of both the planting soil and the in situ soil must include: - Soil permeability, -Soil composition (%sand, %fines, %organic), and A �,N - P-index. JU 1 —75. A detailed planting plan (1' = 20' or larger) prepared by a qualified individual showing: A variety of suitable species, - Sizes, spacing and locations of plantings, - Total quantity of each type of plant specified, - A planting detail, - The source nursery for the plants, and - Fertilizer and watering requirements to establish vegetation. RSN 11o1 6. An assurance that the installed system will meet design specifications upon initial operation once the project is complete and the entire drainage area is stabilized. RSN y�j' 7. A construction sequence that shows how the bioretention cell will be protected from sediment until the -, entire drainage area is stabilized. 8. Thesupporting calculations (including underdrain calculations, if applicable). mk N ler 9. A copy of the signed and notarized inspection and maintenance (I&M) agreement. 444y N fY 10. A copy of the deed restriction. Form SW401-Bioretention-Rev.7 Part III, Page 1 of 1 ®NF NCDENR Permit Number: 16 (to be poWd.d by DWO) Op WATFq h QW,c � o < STCIRIVMTER MOGRe4TPEFMTAPPLJCAnCNFCTdv1 401 CERTlFI W CN APPLJCATICN FCFN BIOFRE�ON CELL SUPPLENENT This fam mat be filled oft, girded and sr[rrrtfed The Pupred tterrs 0110CI4ist (Pat lll) mat be girded, filled out and suhn'ttedalag with all of the reWrai irfannfim 1..%P. RaJECTi INF,ORMATICJN Nectrare 'SCFCperatlonal Cdnnnptions Facility Contact rtarm '.Le Ward Pterhe amber I910-393-2301 ..� Date ;Fe6rtery.17.2011 •' '. Cranage area nrrber 4. 11.7DESIGN INF,ORMAnON Me Characteristics Damage area Inpavias area 7,724 fl? Peroert lapervois 55.40/. % Desig1 rainfall depth 1.0 irdl P'ealc Ro Ca c.dations Is pre'post Darlyd of the 1-yr, 24-1'r peak flowrecuirecl? t . N- •-'i(YaM 1-yr, 244n rurdf depth in 1-yr, 244Yr intendty t ' fft Prede✓doprert 1-yr, 24-1hr peak flan � - -� �: , ft /sec Post-clevelopmeN 1-W, 24-1-ir peak flow ` ° - tft3/sec PreP st 1-yr, 244T peals cnrtrd ft3/sec Storage Velure: N1omMVfters _ Mrinumw0.arerepred r"- ---637.0 ft3 Wkrm po ided 966.0 ft3 CK SDorage Velure: SAVlalers 1.5'nnoR velure Pfebm dop'rzxt 1-yr, 244T nrdf 1 ft3 PosWemelaprrert 1-yr, 24hr nrnR ! Ift3 Mrir nnvdiuneregired 063 Whine��U�jU�►► `/(��, prowled ,R3 I�f v Cell Gimersiors I�JUU fi; r Ponirg depth of Meer �� 9 irdes CK 7 h•rxhg depth dvsta 0.75 ft OV L U S i 9•u(aoe area of the bap of the horetation oell j 1490.0 flz CK Cegtic 6 "..79R pC We ands ENR WP�FF_R QUALITY VUdG1: 20 ft CK '� S rwlhwate< Branch -or-Padus Veda and Sells Sunray Da&dDm firre, porded velure F 6 h CK Drawdmn time, to 24 inches below suface 10.8h f7C ,r Dawdownfime, tdal: 16.8h •``FLSN CARpI•.,,�, Inshr svl: p Q Soil plity I...—._�.__ AirJYr f7FC arrmbiI ESS/pN•;y9 '•'s Rating meda sail: Soilparreabiliry r—-:i:odiMT CK SEAL Soil mrpcs bcn 1647 ._ %Sand (b g1ht) fi5% OK %Rres("gh) (. :100% CK Ly'Pf 1NEB .•. %Dgarc (b/vsgh) 5°/u qC 'Oy/�11FAR NP•.•`° Total: 100°h hhpnrrrrIrNo` Phsph sIndex(P-Irdeu)ofrreoia t:t'.. ,". ,,: ,i,..' 30(urreess) CK Z� I II) Fonn SW401-eioretention-Rem8 July 30, 2009 Parts I and II. Design Summary, Page t of 2 Permit Number: LIA R)I U9 (to be provided by DW ) Basin Elevations Tai rporary pool ele✓abon Type of doretention cell (arrtier'Y'to only one d the tvvo fdloAing questions): Is this a gassed cell? Is this a cell with treestshn6s? Ranting elevation (tap of the rnlch or grass sod layer) Depth of midi Bottom of the patting rreria soil Ranting media depth Depth of washed sand below planting rreda soil He v marry dean out pipes are being installed? Wet factor of safety is used for sizing the tndadain O (See BW Nhrual Section 123.6) Additional distance belvRen the bottan of the panting media and the tloftom of the cell to a co rt for tndercirairs Bottom of the call required SMMelevation Distance from bottom to SFNxf Internal water storage Zone (IM) Does ft design indLcle IWS Elevaion of the top of the iptuned a bav Separation of IN5 and Surface Planting Ran NiTber of tree species N.nber of shrub species Nu1ber d herbaomts garndmaer species Adddiorel Information Does vcl rre in exrtss of the desgl velure bypass the derele Lion cell? Does vdtrre in a cess of the design velure flow evenly disributE ttreugh a vegetated filter? Wnat is the length of the vegetated fiW. Does the design use a leeel spreader to evenly distribute flax? Is the BW located at least 30 feet from surface voters (50 feet If SAwAers)? Is the BW located art lit 100 feet from Hater stay veils? Are the vegetated side slopes egtd to or less than a 1 ? Is the BW located in a proposed drainage easement oath access to a panic R jlt of Way ("? Inlet velocity (from trealrrent system) Is the area surarldng the cell likely to trrlecp development in fFleftinre? Are the slopes daring to the bcretention call greater than 2o°/a? Is the dainage area pant e* stabilized? Pretreatrnent lked (Indicate Type Used oath an'X in the shaded cell) Gavel and gass (Sindnes gavel fdlmed by 3-5 ft of gals) Gassed skate Forebay Other 248.25 fast F-7—Y-7-j(YorN) OK I' Worm 247.5 fn-sl I 0 indes Irstdficienl mAdn depth, tudess installing grassed cell. 245.5 fast 2ft Y €(YorM I 1' Insufficient rtrrber of dean out pees provided 5 CK 1ft 244.17 fast F---236find 8.17 It OK N i:,(YorN) r , fnsl 247.5 ft I wn I wn WALL.En Y.. I`(yaM CK I(YorN) FJtcess velure mst pass through filter. ;', N`� ';A(YorM Show havflow is eely distribxted. t 'y , ,!I(YorN) OK ,Y (Yor N) CK �(YerN) IrsuficientPONlocation ..-•Pfl/sec CK I .' _N ; :.`�(YorM CAC 'IV'•,`_ •,�(YorM CAC I...Y.:, -1(YaM CK Form SW401-Bioretention-Rev.8 July 30, 2009 Parts I and If. Design Summary, Page 2 of 2 Permit No: SOM017_04 (to be awigmd by OWO) III.. REWRED ITEJIS CI EMSi Rye indicate the page or plan sheet nurrbers WF the supporting doaneAabon can be found. An irlconplele stixrilfal pack ge will result It in a request for addtioral information, This will delay fired review and apprwW of the project. Iritial in the spaceproM d m ircate the following design recuirenerts have beer nri. If tie applicant has desgated m agert, theagent nay initial below. If a requirement has not been met, altachjustificatiort Page' Plan Ipni�tialls� Sheet No. �"-- C-60x� 1. Flans (T•- 501 or larger) of the ertive site slang - Iksgn a L drrate buldat, - Off site drainage (if applicable), - Winceted drainage laws (induda Rado al C oceffide nt per basin), -Cell dimensions, - Pretreahrert system - filth flowbjpass system - Nbrteanoe amass, -Paoadeld-ainagaeasmwtard"icncgrtofwey(Paty), QI/t - Clean out pipe locations, - Overfiovdevvice, and - Bardaies of drainage eassmrt. RSN 5o\ 2. Plat deals(1"=30 a lager) for the Liaaertion cell sromrg: Ccr)Ii3 -Cell drretsas - RSUeaOevti system - High flow byposs; system - Ivhinterance awess, -Recadeddairegeeaserratardpblicncgrtofwey(fCVA �j - Desig1 at u/firrete builda4 - Ctf-site drainage (if applicable), - Oean out pipe locations. -Overflowdeice, and - Bo rdaies of drainage easement. aq - Indcafe fhe P-Irdex belween 10 and 30 KW III SI 3.Section lieWof the hoetetim ml(1"=20 a lager)shaung C_C - See slopes, 3:1 or loner - lX derckan system (if applicable). and - 6orelerticn call layers [ground level ad slope, pre-hmtrneM pending depth mldu depth fill nods dap h wasbecl sad, filter fabric(a dlolang stone if applicable), #57 stare, udedr8ins (if appliaable), Q' SHvVf level(s), and overflow sfncNej Rs 3'wl'B31g 4. Asoils report#of is based upon an actual field inkon, soil boring, and infiltration tests. The J- rpunqatOf)Msdts ofthe soils report nu3 be verified in ffa field by DACX by mrrpletirg&strtiting the soils j y�h pfllrrestigation recces tam Courtystiil rreps are not anaoeptadescrce of soils irdon. on. At JJ ele✓aiars shall be in W mean sea level(frrd).ftesdts ofsoils tests of both the loaning soil and the in situ soil mat induce: - Soil pemeability, - Soil mnposidon (%sad, %fines, %crcyvic), ad dlex RSIQ LFal- Prot Adetaiile 15. A detailed prating plan (1"=20 a lager) p>rePefnd bye qualified individual sMWrg: LF60\ - Avaiiety of citable species, - suss, spacing and locations; of platings, - Total quantify of each type of part spedfed. -Aplalingdetall, -The source nursery for the pats, and -Fetilisradwaferigregiiu.0 toestablisheegetaim AN al 10 5. At assrartce pat pre installed systemwill noel desiT specifications upon iritial operation are the n £roSi 6Yt project is oxa rplete d the entire drainage area is stali� l. /CSN Carl WO\P10.n57.Aartslnr4m segtleroethal shonsbowttabioretationoell will bepmtectedfnrnsecinertufil the �I__�entire drainage area is stabilized. RcN En bVrf A a The supporting calcalations(inducing udadain calculations, ifapplivable). RSN W R A mpy of the sgad ad nota¢ed ingledon and neirteranae(18M agvereri AN N ft 10. Ampyofthedeedrestnctiom Form SW401-Bioretention-Rev] Pan III, Page 1 of 1 Permit Number: —SW 6 101 ZOµ (to be provided by DWQ) Drainage Area Number. ! 2r 3, +} Bioretention 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 operation and maintenance procedures: — . Immediately after the bioretention cell is established, the plants will be watered twice weekly if needed until the plants become established (commonly six weeks). — Snow, mulch or any other material will NEVER be piled on the surface of the bioretention cell. — Heavy equipment will NEVER be driven over the bioretention cell: — Special care will be taken to prevent sediment from entering the bioretention cell. Once a year, a soil test of the soil media will be conducted. After the bioretention cell is established, I will inspect it once a month 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: Potentialproblems: How I will remediate theproblem: The entire BMP Trash/debris is present. Remove the trash/debris. The perimeter of the Areas of bare soil and/or Regrade the soil if necessary to bioretention cell 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. The inlet device: pipe, The pipe is clogged (if Unclog the pipe. Dispose of the stone verge or swale applicable). sediment off -site. The pipe is cracked or Replace the pipe. otherwise damaged (if applicable). Erosion is occurring in the Regrade the swale if necessary to swale (if applicable). smooth it over and provide erosion control devices such as reinforced turf matting or riprap to avoid future problems with erosion. Stone verge is clogged or Remove sediment and clogged covered in sediment (if stone and replace with clean stone. applicable). NOV 0 7 /012 Form SW401-Bioretention O&M-Rev.3 utNii WHTEK QU n I WxHw�.�� , �,_ _, Page 1 of 4 BMP element: Potentialproblems: How I will remediate theproblem: The pretreatment area Flow is bypassing Regrade if necessary to route all pretreatment area and/or flow to the pretreatment area. gullies have formed. Restabilize the area after grading. Sediment has accumulated to Search for the source of the a depth greater than three sediment and remedy the problem if inches. possible. Remove the sediment and restabilize the pretreatment area. 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. The bioretention cell: Best professional practices Prune according to best professional vegetation show that pruning is needed practices. to maintain optimal plant health. 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 to establish the ground cover if a soil test indicates it is necessary. Tree stakes/wires are present Remove tree stake/wires (which six months after planting. can kill the tree if not removed). The bioretention cell: Mulch is breaking down or Spot mulch if there are only random soils and mulch has floated away. void areas. Replace whole mulch layer if necessary. Remove the remaining much and replace with triple shredded hard wood mulch at a maximum depth of three inches. Soils and/or mulch are Determine the extent of the clogging clogged with sediment. - remove and replace either just the . top layers or the entire media as needed. Dispose of the spoil in an appropriate off -site location. Use triple shredded hard wood mulch at a maximum depth of three inches. Search for the source of the sediment and remedy the problem if possible. An annual soil test shows that Dolomitic lime shall be applied as PH has dropped or heavy recommended per the soil test and metals have accumulated in toxic soils shall be removed, the soil media. disposed of properly and replaced with new planting media. Form S W401-Bioretention O&M-Rev.3 Page 2 of 4 BMP element: Potentialproblems: How I will remediate theproblem: The underdrain system Clogging has occurred. Wash out the underdrain system. if applicable) The drop inlet Clogging has occurred. Clean out the drop inlet. Dispose of the sediment off -site. The drop inlet is damaged Repair or replace the drop inlet. 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-Bioretention O&M-Rev.3 Page 3 of 4 Permit Number. S b✓ 6 i D l Zo`t (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:SOF Operational Communications Facility BA4P clrainage area number: I , 2) 3 k 19f Print name:Mr. Craig Lantz Title:Directorate of Public Works (DPW) / Water Manasement Branch (WMB) Address:2175 Reilly Road Stop A, Port Bragg., NC 28310-5000 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 County of , do hereby certify that personally appeared before me this day of I , and acknowledge the due execution of the forgoing bioretention maintenance requirements. Witness my hand and official seal, SEAL My commission expi Fonn SW401-Bioretention I&M-Rev. 2 Page 4 of 4