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HomeMy WebLinkAboutSW6111207_CURRENT PERMIT_20120302STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW W42):y DOC TYPE CURRENT PERMIT APPROVED PLANS ❑ HISTORICAL FILE DOC DATE O�SDa, YYYYMMDD I DENR-FRO NCDENR North Carolina Department of Environment and Natural Resources Beverly Eaves Perdue Governor Mr. David Heins Fort Bragg DPW - WMB 2175 Reilly Rd. Stop A Fort Bragg, NC 28310-5000 Division of Water Quality Charles Wakild, PE Director January 31, 2012 Subject: Stormwater Permit No. SW6111207 Child Development Home, 2417 High Density Bio-Retention Project Cumberland County Dear Mr. Heins: MAR 0 2 2012 DWQ Dee Freeman Secretary The Stormwater Permitting Unit received a complete Stormwater Management Permit Application for Child Development Home, 2417 on December 29, 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 2H.1000 and Session Law 2006-246. We are forwarding Permit No. SW6111207, dated January 31, 2012, for the construction, operation and maintenance of the subject project and the stormwater BMPs. This permit shall be effective from the date of issuance until January 31, 2020, 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 150E 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. Sincerely, for Charles Wakild, PE Wetlands and Stormwater Branch 1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Location: 512 N. Salisbury St. Raleigh, North Carolina 27604 Phone: 919-807-63001 FAX: 919-807-6494 Internet: www.rcwaterquality.org An Equal Opportunity 1 Affirmative Action Employer cc: SW6111207 File , ec: Rob Gourley, PE — Burgess & Niple, Inc. Mike Lawyer — Fayetteville Regional Office NorthCarol i na Natura!!aff State Stormwater Permit Permit No. SW6111207 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 (DPW) Child Development Nome, 2417 SW corner of Wac St. & Reilly St., Fort Bragg, Cumberland County FOR THE construction, operation and maintenance of two (2) 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 January 31, 2020, and shall be subject to the following specified conditions and limitations: 1. 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 1.7 of this permit. The stormwater control has been designed to handle the runoff from 17,032 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. SW6111207 7. The following design criteria have been provided in the bioretention cells and must be maintained at design condition: a. Drainage Area, aces: Offsite, ft : Offsite, ft2: b. Total Impervious Surfaces, ft2: Qnsite, ft2: Offsite, ft2: c. Design Storm, inches: d. Max. Ponded Depth, feet: e. Seasonal High Water Table, fmsl f. Planting Media Depth, feet: g. Cell Dimensions, feet: h. Planting Elevation, fmsl, i. Bottom Surface Area, ft�: j. Permitted Storage Volume, ft3: k. Bypass / Storage Elevation, fmsl: I. Drawdown Time, hours: m. Underdrain Diameter, inches: n. Total number of plants provided: o. Receiving Stream/River Basin: p. Stream Index Number: q. Classification of Water Body: II. SCHEDULE OF COMPLIANCE Cell 1 0.64 27,878 0 12,632 12,632 0 1.0 1.0 296.4 2.0 68x18 301.5 1,253 1,071 302.5 25.5 none Cell 2 0.21 9,148 0 4,400 4,400 0 1.0 0.75 297.7 2.0 35x11 302.25 600 371.0 303.0 23.5 none grass sod I grass sod Beaver Creek / Cape Fear 18-31=24-5 ,1C11 1. The stormwater management system shall be constructed in its entirety, vegetated and operational for its intended use immediately upon stabilization of the drainage area(s). 2. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 3. The permittee shall at all time provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency. The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited to: a. Semiannual scheduled inspections (every 6 months). b. Sediment removal. C. Mowing and re -vegetation of slopes and the 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. g. 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. 5. 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 shall summarize the inspection dates, results of the inspections, and the maintenance work performed at each inspection. Page 2 of 6 State Stormwater Permit Permit No. SW6111207 6. The facilities shall be constructed as shown on the approved plans. The stormwater treatment system shall be constructed in accordance with the approved plans and specifications, the conditions of this permit, and with 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 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 certification in writing,to the Director that the changes have been made. Ill. 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 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. Page 3 of 6 State Stormwater Permit Permit No. SW6111207 2. The permittee is responsible for compliance with all permit conditions until such time as the Division approves a request to transfer the permit. 3. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to enforcement action by the Division of Water Quality, in accordance with North Carolina General Statute 143-215.6A to 143-215.6C. 4. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances, which may be imposed by other government agencies (local, state, and federal) having jurisdiction. 5. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems. 6. The permittee grants DENR Staff permission to enter the property during normal business hours for the purpose of inspecting all components of the permitted stormwater management facility. 7. The permit 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 31 st day of January, 2012. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION fbr Charles Wa ild, PE, Director Division of Water Quality By Authority of the Environmental Management Commission Page 4 of 6 State Stormwater Permit Permit No. SW6111207 Child Development Home, 24/7 Stormwater Permit No. SW6111207 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 y Permit No. SW6111207 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 conveyances are located and graded 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 11. 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 plantings, specified media, and the 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 DWQ USE ONLY Dat Received Fee Paid Permit Number 1 Z 2 4 11 4.S'D 5 31 io► ►► a'1 Applica e Rules: ❑ Coastal SW -1995 ❑ Coastal SW -- 2008 a`Ph II - Post Construction (select all dust apply) ❑ Non -Coastal SW- I-IQW/ORW Waters ❑ Universal Stormwater Management Plan ❑ Other WQ M mt Plan: State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM This form Puny be photocopier) for use as aft original 1. GENERAL INFORMATION 1. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): Child Development Home, 24/7 - IIN74422 2. Location of Project (street address): Wac St. & Reilly St. City:_ru9-' 6(z4-6-6 County: Zip: 3. Directions to project (from nearest major intersection): From the intersection of All American Pkwy_. & Reilly St: continue North_ along Reilly St. approximately 0.71 miles to the intersection with Wac St. Project is located at the Southwest corner of this intersection. I.atitude:35° 08' 38.37" N H. PERMIT INFORMATION: Longitude:78' 59' 48.02" W of the main entrance to the project. 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 numberN/A__ , its issue date (if known)N/A , and the status of construction: ❑Not Started ❑Partially Completed* ❑ Compleled* *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, N/A and the previous name of the project, if different than currently proposed, N/A -� 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): ❑CAMA Major ®Sedimentation/Erosion Control: 1.16 ac of Disturbed Area ❑NPDES Industrial Stormwater ❑404/401 Permit: Proposed Impacts b.If any of these permits have already been acquired please provide the Project Name, Project/Permit Number, issue date and the type of each permit: Proiect_ID: ralit shall be Submitted to NCDI::NR, concurrently with th Fonts SWU-101 Version 07July2009 DEC 2 9 zorr Page 1 of 6 Alvt>SQl NfR. WATER WDsr0RMOVALl ..,,,. Ill. CONTACT INFORMATION I. 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:Directorate of Public Works (DPW) Signing Official & Title:Mr. David Heins, Environmental Division Chief (DPW) b.Contact information for person listed in item is 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 _ ) 396-8207 Cma il:david.a.heins.civ@mail.mil Fax: ( 910 ) 907-2420 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. (`Phis 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: Mailing Address (if applicable): City: Phone: f 1 l mail: State: Zip: State: Zip: Fax: l 1 3. a. (Optional) Print the name and title of another contact such as the project's construction supervisor or other person who can answer questions about the project: Other Contact Person/ Organization:Mr, Lee Ward Signing Official & Title:DPW/ Water Management Branch b.Contact information for person listed in item 3a above: Mailing Add ress:Blcig 0-9"125, McKellars Road City:Fort Bragg State: NC Zip:28310 Phone: ( 910 ) 396-2301 Fax: ( 910 ) 907-2420 E-mail: lee.p.ward@us.army.mil 4. Local jurisdiction for building permits: N/A Point of Contact: Phone #: Fonn SWU-101 Version 071uly2009 Page 2 of 6 IV. PROJECT INFORMATION 1. In the space provided below, briefly summarize how the stormwater runoff will be treated. Stormwater runoff from impervious surfaces is directed to two Micro-Bioretention cells providing ponding above the planting bed and infiltration through organic material planting soil and a gravel bed. 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 Cape Fear _ River basin. 4. Total Property Area: 1.16 acres 5. Total Coastal Wetlands Area: 0 acres 6. Total Surface Water Area: 0 acres Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project Area,:1.16 acres Total project area shall be calculated to exclude the folloznirp fire normal fool t f ipnponnded structures, the area betzoeen the banks of streams and rivers, the area belong the orrrral High Water (NNW) line or Mean High Water (MHW) litre, and coastal zoetlands landward from the NHW (or MHW) lime. 77re resultant )project area is used to calculate overall percent built upon area (BZIA). Non -coastal zoetlmrds 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 = 34 % 9. I -low many drainage areas does the project have?] (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. Basin Information Drainage Area 1 Drainage Area 2 Drainage Area 3 Draina e Area 4 Receiving Stream Name Beaver Creek Beaver Creek Stream Class * C C Stream Index Number 18-31-24-5 18-31-24-5 Total Drainage Area (sf) 27,878 9,148 On -site Drainage Area (so 27,878 9,148 Off -site Drainage Area (so 0 0 Proposed Impervious Area** (SO 12,632 4,400 Impervious Area** total 45% 48% Impervious** Surface Area Drainage Area 1 Drainage Area 2 Drainage Area 3 Draina re Area 4 On -site Buildings/Lots (so 2,270 2,273 On -site Streets (so NA On -site Parking (so 5,294 On -site Sidewalks (so 2,877 876 Other on -site (so 2,191 1,251 Future (so Off -site (sf) laxisting 13UA*** (so Total (so: 12,632 4,400 Stream Class and Index Number can be determined at: littp;//h2o.etirstate.rpc.us/birus/reports/reportsWB.litml * lmpervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas, sirewalks, gravel areas, etc. Form SWU-101 Version 07Ju1y2009 Pan-e 3 of 6 'Report only that amount of existing BUA flint will rcmnin after development. Do not report airy existing 13L1A that is to be removed and zolrich mill be replaced by irew BUA. 11. I -low was the off -site impervious area listed above determined? Provide documentation. N/A Proiects in Union County: Contact DWQ Central Office staff to check if'the project is located within a 711reatened & Endarngered .Species it alershed that mays he subject to snore stringent stornm,aler requirements cis per NC,4C 02B .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 13MIl specified for this project. The latest versions of the forms can be downloaded from llttu://l12o.eiir.state.iic.us/su/brnra fornis.htm. VI. SUBMITTAL REQUIREMENTS Only complete application packages wilt 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 littp://li2o.enr.state.nc.tis/su/bap forms.litm. 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://h2o.enr.state.nc.us/su/nhsi_nhaps.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 htt r li2o,enr.state.nc.trs stibm forms.htm. }}a [s 1. Original and one copy of the Stormwater Management Permit Application Dorm. ,�1 2. Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants Farm. (if required as per Part V!I hclnzn) 3. Original of the applicable Supplement Form(s) (sealed, signed and dated) and O&M agreement(s) for each 13MI'. 4. Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer to http://www.enviielp.org/pages/otiestol)exL,ress.litml for information on the Express program and the associated fees. Contact the appropriate regional office Express Permit Coordinator for additional information and to schedule the required application meeting.) 5. A detailed narrative (one to two pages) describing the stormwater treatment/inanagementfor the project. This is required in addition to the brief summary provided in the Project Information, item 1. 6. A USGS map identifying the site location. If the receiving stream is reported as class SA or the 6—?41 receiving stream drains to class SA waters within 1/2 mile of the site boundary, include the'/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. it. Identify all surface waters on the plans by delineating the normal pool elevation of impounded structures, the banks of streams and rivers, the MFIW or NI-IW line of tidal waters, and any coastal wetlands landward of the Ml-1W 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 13UA 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. Dorm SWU-101 Version 07July2009 Page 4 of 6 10 11 o. Drainage areas delineated (included in the main set of plans, not as a separate document). p. Vegetated buffers (where required). ^� - 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 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 it site visit for DWQ to verify the SHVVThrior to srtbnmittal, (910) 796-7378.) A copy of the most current property deed. Deed book: NA Page No: For corporations and limited liability corporations (I-I-C): 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. littp://www.secretary.state.tic.us/Corporatioris/CSearcii.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 13UA 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 littp://li2o.enr.state.nc.us/su/bmi2 forms.htni4deed 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. 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:Robert A. Gourley, r. Consulting Firm: Burgess & Ni Mailing Address;Suite 300, 295 Bendix Road City:Virginia Beach State:Virginia Lip:23452 Phone: (757 ) 490-3566 Ext 2813 Fax: (757 490-9224 Email:rob. gourlcy burgessniple.com IX. PROPERTY OWNER AUTHORIZATION (if Cox tact Information, item 2 has been filled out, complete this section) 1, (print or type name of person lister! in Contact Information, item 2a) _ _ - , certify that I own the property identified in this permit application, and thus give permission to (print or type mane of person listed in Contact Information, item In) with (print or type name of organization listed in Contact Information, iterrr 11)) 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 storniwater system. Form SWU-101 Version 07Ju]y2009 Page 5 o1'6 As the legal property owner I acknowledge, understand, and agree by my signature below, that if my designated agent (entity listed in Contact Information, item 1) dissolves their company and/or cancels or defaults on their lease agreement, or pending sale, responsibility for compliance with the DWQ Stormwater permit reverts back to me, the property owner. As the property owner, it is my responsibility to notify DWQ immediately'and submit a completed Name/Ownership Change Lorin 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: Date: a Notary Public for the State of . County of do hereby certify that personally appeared before me this _ day of , and acknowledge the due execution of the application for a stormwater permit. Witness my hand and official seal, SET My commission expi X. APPLICANT'S CERTIFICATION 1, (print or type name of person listed in Contact Information, item 2) Mr. David Heins certify that the information included on this permit application form is, to the best of my knowledge, correct acid 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 requ irements of the applicable stormwater�ule� un,,Kr 15A NCAC 21-1 .1000, SL 2006-246 (Ph. II - Post Construction) or SI.. 2008-211. Signatu 1, Date: ) Z' l a Notary Public for the State of . County of do hereby certify that personally appeared before me this _ day of , and acknowledge the due execution of the application for a stormwater permit. Witness my hand and official seal, - SEAL My commission expi Form SWU-101 Version 07hly2009 Page 6 ol'6 Permit Number:—wo 0 2z/ (to be provided by DWQ) P' Oao� W A T�gaG R�MA NCDENR STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM BIORETENTION CELL SUPPLEMENT This form must be titled out, printed and submitted. The Required Items Checklist (Part 111) must be printed. filled out and submitted along with all of the required information. I. PROJECT INFORMATION Project name Fort Bragg 247 CD Nome Contact name Robert GouAey, Jr. P.E. Phone number 757490-3566 ext. Date December 22, 2011 Drainage area number 1 II. DESIGN INFORMATION 71 Site Characteristics Drainage area 27,878 (t2 Impervious area 12,632 ft2 Percent impervious 45.3% % Design rainfall depth 1.0 inch Peak Flow Calculations Is pre/post control of the 1-yr, 24-hr peak flow required? N (Y or N) 1-yr, 24-hr runoff depth in 1-yr, 24-hr intensity in/hr Pre -development 1-yr, 24-hr peak flow ft'/sec Post -development 1-yr, 24-hr peak flow ft'/sec Pre/Post 1-yr, 24-hr peak control ft'Isec Storage Volume: Non -SA Waters Minimum volume required 1,057,0 ft' Volume provided 1,071.0 ft' OK Storage Volume; SA Waters 1.5" runoff volume rf3 Pre -development 1-yr, 24-hr runoff ft3 Post -development 1-yr, 24-hr runoff ff3 Minimum volume required 0 ft 3 Volume provided Cell Dimensions ff3 Ponding depth 11.8 inclle�, OK C of water Ponding depth of water M Surface area of the top of the bioreteniion cell9 0 ft` Insufficient surface area. Length: 68 ft OK Width: 18 ft OK -or- Radius ft Media and Soils Summary ���y1 CARft:: Drawdown time, ponded volume 9.5 hr OK Drawdown time, to 24 inches below surface 16 hr OK Drawdown time, total: soil.. 25.5 hr • 4 SE 3��� : - ptRSItI! 2 Z .•. 4ZZ Soil permeability 1.90 inthr OK Planting media soil. Soil permeability 1.50 in/hr OK �/�fA•t tG0�µ`��� II Soil composition % Sand (by volume) 85% OK % Fines (by volume) 10% OK Form SW401-13ioretontion-Rev.8 June 25, 2010 Parts I and n. Design Summary, Page 1 of 3 i.' � .} •'i[. � f, � �. � S' . . ,.t,,,•qi�,,, 1, ��.� � L� , L i� . �4 .� �'� t""" . i ' � - "'� =,..�i/,j,f �,i,�� .;. :�' Permit Number: (fo be provided by DWQ) % Organic (by volume) 5% OK Total: 100% Phosphorus Index (P-index) of media 30 (unitless) OK Form SW401-$ioretention-Rev.8 June 25, 2010 Paris I and 11. Design Summary, Page 2 of 3 Permit Number: (to be provided by DWQ) Basin Elevations Temporary pool elevation 302.50 fmsl Type of bioretention cell (answer "Y" to only one of the two following questions): Is this a grassed cell? N (Y or N) Is this a cell with trees/shrubs? Y (Y or N) OK media depth Planting elevation (top of the mulch or grass sod layer) 301.5 fmsl Depth of mulch 3 inches OK Bottom of the planting media soil 298.5 fmsl Planting media depth 3 ft Depth of washed sand below planting media soil 0 ft Are underdrains being installed? N (Y or N) How many clean out pipes are being installed? What factor of safety is used foi sizing the underdrains? (See BMP Manual Section 12.3.6) Additional distance between the bottom of the planting media and 0 ft the bottom of the cell to account for underdrains Bottom of the cell required 298.5 fmsl SHWT elevation 296.4 fms! Distance from bottom to SHWT 2.1 ft OK Internal Water Storage Zone (IWS) Does the design include tWS N (Y or N) Elevation of the top of the upturned elbow fmsl Separation of IWS and Surface 301.5 ft Planting Plan Number of tree species 2 Number of shrub species 2 Number of herbaceous groundcover species 3 OK Additional Information Does volume in excess of the design volume bypass the bioretention cell? Y (Y or N) OK Does volume in excess of the design volume flow evenly distributed N (Y or N) Excess volume must pass through filter. through a vegetated filter? What is the length of the vegetated filter? f1 Does the design use a level spreader to evenly distribute flow? N (Y or N) Show how flow is evenly distributed. Is the BMP located at least 30 feet from surface waters (50 feet if Y (Y or N) OK SA waters)? Is the BMP located at least 100 feet 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 proposed drainage easement with access Y (Y or N) OK to a public Right of Way (ROW)? p OK Inlet velocity (from treatment system) ft/sec Is the area surrounding the cell likely to undergo development in the N (Y or N) OK future? Are the slopes draining to the bioretention cell greater than 20%? N (Y or N) OK Is the drainage area permanently stabilized? Y (Y or N) OK Pretreatment Used (Indicate Type Used with an "X' in the shaded cell) Gravel and grass ($inches gravel followed by 3-5 ft of grass) Grassed swale OK Forebay X Other Form SW401-Bioretention-Rev.8 June 25, 2010 Parrs I and II. Design Summary, Page 3 of 3 Permit No: (to be assigned by DW4) III. REQUIRED ITEMS CHECKLIST CeL-LS 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 Sheet No. 1. Plans (1" - 50' or larger) of the entire site showing: ,? L( -Design at ultimate build -out, !S - Off -site drainage (if applicable), i,V - Delineated drainage basins (include Rational C coefficient per basin), j Cell dimensions, - Pretreatment system, AIA - High flow bypass system, N,4 - Maintenance access, ,Na - Recorded drainage easement and public right of way (ROW), NU 4 - Clean out pipe locations, 4" - Overflow device, and NA - Boundaries of drainage easement. 33 /5_ 2. Plan details (1" = 30' or larger) for the bioretention cell showing: 3 Cell dimensions 3 g S/ - Pretreatment system, /th4 High flow bypass system, NA - Maintenance access, NA Recorded drainage easement and public right of way (ROM, 3 j q - Design at ultimate build -out, /S Off -site drainage (if applicable), NA - Clean out pipe locations, 4(1 4 -Overflow device, arrd- AIA Boundaries of drainage easement. 9 - Indicate the P-Index between 10 and 30 qg�< 3. Section view of the bioretention cell (1" = 20' or larger) showing: q# ? - Side slopes,11 or lower NQ - Underdrain system (if applicable), and yp 9 - Sioretention cell layers [ground level and slope, pre-treatment, ponding 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] Y SEA Cr R-6 TZ�P02r' l^i�CL tN /Z'P P.9 6"c6r 0 w/ f acic ayE 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 DWO, by completing & submitting the soils 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 �f P-index. 5. 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. 6. A construction sequence that shows how the bioretention cell will be protected from sediment until the entire drainage area is stabiiized. 7. The supporting calculations (Inducting underdrain calculations, if applicable). A copy of the signed and notarized inspection and maintenance (I$M) agreement. 9. A copy of the deed restriction. Form sW401-Bioretenlioa-Rev.7 Part III, Page 1 of 1 Permit Number: 5414Q11Z0/ (to be provided by DWO) e F o�o� WAT Eq�G L NCDENR 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. I. PROJECT INFORMATION Project name Fort Bragg 2417 CD Home Contact name Robert Gourley, Jr. P.E. Phone number 757.490-3566 ext. Date . December 22, 2011 Drainage area number 2 II. DESIGN INFORMATION Site Characteristics Drainage area 9,148 ftz Impervious area 4,400 ft' Percent impervious 48.1 % % Design rainfall depth 1.0 inch Peak Flow Calculations Is prelpost control of the 1-yr, 24-hr peak flow required? N (Y or N) 1-yr, 24-hr runoff depth in 1-yr, 24-hr intensity in/hr Pre -development 1-yr, 24-hr peak flow ft3lsec Post -development 1-yr, 24-hr peak flow ft'/sec Pre/Post 1-yr, 24-hr peak control ft3lsec Storage Volume: Non -SA Waters Minimum volume required 367.0 ft' Volume provided 371.0 It OK Storage Volume: SA Waters 1.5" runoff volume ft3 Pre -development 1-yr, 24-hr runoff ft3 Post -development 1-yr, 24-hr runoff ff3 Minimum volume required 0 W Volume provided ft3 Cell Dimensions Ponding depth of water Ponding 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 volume) % Fines (by volume) Alt p4A / 9 inches OK en 0.75 ft 00 � l b 390-0 t Insufficient surface area. ,sew C_44 cucl�t0/L"S 35 ft OK 11 ft OK ft `\\\\�1 1el. CAR4 T5hr OK Pvll� •16 hr OK 23.5 hr A Ai I r _ 03226P 2,40 inlhr OK Z/,2 0 /J . NQr�`� •-�• 1.50 inthr OK 1R 4A •GQ�,1z hill 85% OK 10% OK Form SW401.8ioretention-Ray.B June 25, 2010 Parts I and 11, Design Summary, Page 1 or 3 ' .. � ''���d;41;�{' •:. ,_ ` � 'f 7�1 � x ;' 1 % Organic (by volume) 5% OK Total: 100% Permit Number: (to be provided by DWO) Phosphorus Index (P-Index) of media 30 (unitless) OK Form SW401-Bioretention-Rev.8 June 25, 2010 Parts i and H. Design Summary, Page 2 of 3 Basin Elevations Permit Number: f!o be provided by OWQ) Temporary pool elevation 303,00 fmsl Type of bioretention cell (answer "Y" to only one of the two following questions): Is this a grassed cell? Y (Y or N) OK Is this a cell with treeslshrubs? N (Y or N) Planting elevation (top of the mulch or grass sod layer) 302.25 fmsl Depth of mulch 3 inches OK Bottom of the planting media soil 300 fmsl Planting media depth 2.25 ft Depth of washed sand below planting media soil 0 ft Are underdrains being installed? N (Y or N) How many clean out pipes are being installed? What factor of safety is used for sizing the underdrains? (See BMP Manual Section 12.3.6) Additional distance between the bottom of the planting media and the bottom of the cell to account for underdrains Bottom of the cell required SHWT elevation Distance from bottom to SHWT Internal Water Storage Zone (IWS) Does the design include IWS Elevation of the top of the upturned elbow Separation of IWS and Surface Planting Plan Number of tree species Number of shrub species Number of herbaceous groundcover species Additional Information Does volume in excess of the design volume bypass the bioretention cell? 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 floe Is the BMP Located at least 30 feet from surface waters (50 feet if SA waters)? Is the BMP located at least 100 feet from water supply wells? Are the vegetated side slopes equal to or less than 3:1? Is the BMP located in a proposed drainage easement with access to a public Right of Way (ROW)? inlet velocity (from treatment system) Is the area surrounding the cell likely to undergo development in the future? Are the slopes draining to the bioretention cell greater than 20%? Is the drainage area permanently stabilized? Pretreatment Used (Indicate Type Used with an "X" in the shaded cell) Gravel and grass (8 inches gravel followed by 3-5 ft of grass) Grassed swale Forebay Other 0 ft 300 fmsl 297.7 fmsl 2.3 ft OK N (Y or N) fmsl 302.25 ft 2 2 3 OK Y (Y or N) OK 0K N (Y or N) Excess volume must pass through filter. fi N (Y or N) Show how flow is evenly distributed. Y (Y or N) OK Y (Y or N) OK Y (Y or N) OK Y (Y or N) OK ft/sec ah *V/ Foft+t#410' /fit- bt 644s :b — /—bl N (Y or N) OK N (Y or N) OK Y (Y or N) ' OK 1"601 Form SW401-Bioretention-Rev.8 June 25, 2010 Parts I and 11. Design Summary, Page 3 of 3 Permit No: ` (to be assigned by DWO) III. REQUIRED ITEMS CHECKLIST 9f Z 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 I Sheet No. 3 4' 115'/ 1. Plans (1" - 50' or larger) of the entire site showing: Design at ultimate build -out, !S Off -site drainage (if applicable), f - Delineated drainage basins (include Rational C coefficient per basin), ,3 - Cell dimensions, V - Pretreatment system, N, 4 - High flow bypass system, ,vA - Maintenance access, ,NA - Recorded drainage easement and public right of way (ROW), NA Clean out pipe locations, ,V Overflow device, and N,4 - Boundaries of drainage easement. i1 3-"16-2. Plan details (1" = 30' or larger) for the bioretention cell showing: 3 - Cell dimensions 3 a, y Pretreatment system, AAA High flow bypass system, NA - Maintenance access, NA Recorded drainage easement and public right of way (ROW), 3 ¢ Design at ultimate build -out, Off -site drainage (if applicable), ,vA - Clean out pipe locations, 409 - Overflow device, and• NA Boundaries of drainage easement. I Indicate the P-Index between 10 and 30 7 3. Section view of the bioretention cell (1" = 20' or larger) showing: 140 9 - Side slopes, 3:1 or lower NQ - Underdrain system (if applicable), and yID 9 - 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, underdrafns (if applicable), SHWT levet(s), and overflow structure) SEA Cra-O r� kEPoR,r Ji CL Wire PAckaGE W/ �ocica�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 OWQ, by completing & submitting the soils �� 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 /f - P-index. 5- 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. 6. A construction sequence that shows how the bioretention cell will be protected from sediment until the entire drainage area is stabilized. 7. The supporting calculations (including underdrain calculations, if applicable). 8. A copy of the signed and notarized inspection and maintenance (I&M) agreement. 9. A copy of the deed restriction. Form SW401-Bioretemion-Re4.7 Part III, Page 1 of 1 Pennit Number. 5t✓4 II IZV 7 (to he proNded by DWQ) Drainage Area Number: I Bioretention Operation and Maintenance Agreement 1 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 prQsent, 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). Form SW40 I -Bioretention O&M-Rev.3 Page I of 4 BMP element-. The pretreatment area The bioretention cell vegetation The bioretention cell: soils and mulch Potential problems: Flow is bypassing pretreatment area and/or gullies have formed. Sediment has accumulated to a depth greater than three inches. Erosion has occurred, Weeds are present. Best professional practices show that pruning is needed to maintain optimal plant health. Plants are dead, diseased or dying. 'free stakes/wires are present six months after planting, Mulch is breaking down or has floated away. Soils and/or mulch are clogged with sediment. An annual soil test shows that pl-I has dropped or heavy metals have accumulated in the soil media. I -low I will remediate the problem: Regrade if necessary to route all flow to the pretreatment area. Restabilize the area after grading. Search for the source of the sediment and remedy the problem if possible. Remove the sediment and restabilize the pretreatment area. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems. Remove the weeds, preferably by hand. Prune according to best professional practices. Determine the source of the 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 necessar . Remove tree stake/wires (which can kill the tree if not removed). Spot mulch if there are only random 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. Determine the extent of the clogging - remove and replace either just the Lop 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. Dolomitic lime shall be applied as recommended per the soil test and toxic soils shall be removed, disposed of properly and replaced with new planting media. Form SW401-Bioretention O&M-Rev.3 Page 2 ol'4 BMP element: Potentialproblems: How I will remediate the roblem: 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-I3ioretention O&M-Rev.3 Page 3 of4 Permit Number: -4- ' ✓61112-0 7 (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:Fort Bra , � 24/7 Child Development Florne - PN74422 13MP drainage area number: Print name:Mr. David Heins Title: Directorate of Public Works (DPW) /Chief -Environmental Division Address:2175 Reilly Road Slop A, fort Bra"—, NC 28310-5000 Phone Signat Date: 396y- 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. 1, , a Notary Public for the State of County of , do hereby certify that personally appeared before me this day of , , and acknowledge the due execution of the forgoing bioretention maintenance requirements. Witness my hand and official seal, SEAL My commission expires Form SW401-Bioretention I&.M-Rev. 2 Page 4 of 4 �6+ Permit Number: (10 he provided h}' DIVQ) Drainage Area Nurnber: j 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 bioretention cell Areas of bare soil and/or erosive gullies have formed, Regrade the soil if necessary to 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). I'rosion 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 problerns with erosion. Stone verge is clogged or Remove sediment and clogged covered in sediment (if stone and replace with clean stone. a licable). , Form SW401-Bioretention O&M-Rev.3 Page I of 4 BMP element: The pretreatment area The bioretention cell: vegetation The bioretention cell: soils and mulch Potential problems: Flow is bypassing pretreatment area and/or gullies have formed. Sediment has accumulated to a depth greater than three inches. Erosion has occurred Weeds are present. Best professional practices show that pruning is needed to maintain optimal plant health. Plants are dead, diseased or dying. Tree stakes/wires are present six months after planting. Mulch is breaking down or has floated away. Soils and/or mulch are clogged with sediment. An annual soil test shows that pH has dropped or heavy metals have accumulated in the soil media. How I will remediate the problem: Regrade if necessary to route all flow to the pretreatment area. Restabilize the area after grading. Search for the source of the sediment and remedy the problem if possible. Remove the sediment and restabilize the pretreatment area. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems. Remove the weeds, preferably by hand. Prune according to best professional practices. Determine the source of the 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. Remove tree stake/wires (which can kill the tree if not removed). Spot mulch if there are only random 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. Determine the extent of the clogging - 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. _ Dolomitic lime shall be applied as recommended per the soil test and toxic soils shall be removed, disposed of properly and replaced with new planting media. Form SW401-Bioretention O&M-Rev.3 Page 2 of'4 BMP element: Potentialproblems: How l 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 or replace the drop inlet. The receiving water Erosion or other signs of -Repair Contact the NC Division of Water damage have occurred at the Quality 401 Oversight Unit at 919- ou tle t. 733-1786. Form SW401-Bioretention O&M-Rev.3 Page 3 ol'4 Permit Number: 5L✓4II 1?- (to be provided hy, DIVQ) 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+ort Bragg 24/7 Child Development Home - PN74422 BMP drainage urea number: Print name:Mr. David Heins Title: Directorate ofI ublic Works (DPW) /Chief -Environmental Division Address:2175 Reilly Road Stop A, fort Brat; NC 28310.5000 111hone:910-396-82071 . , / Signature: 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, , a Notary Public for the State of County of , do hereby certify that personally appeared before me this day of , and acknowledge the due execution of the forgoing bioretention maintenance requirements. Witness my hand and official seal, SEAL My commission expi Form SW401-13ioretention I&M-Rev. 2 Page 4 of 4