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HomeMy WebLinkAboutSW6120102_CURRENT PERMIT_20120302STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW DOC TYPE CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE YYYYMMDD NC® NR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Charles Wakild, P.E. Governor Director March 2, 2012 Sandhills Classical Christian School Attn: Roger W. Marx, School Board Member 650 Pee Dee Road Southern Pines, NC 28387 Subject: Stormwater Management Permit SW6120102 Sandhills Classical Christian School High Density Project Moore County Dear Mr. Marx: Dee Freeman Secretary The Fayetteville Regional Office of the Division of Water Quality received a complete Stormwater Management Permit Application for the Sandhills Classical Christian School project on January 18, 2012. Staff review of the plans and specifications along with additional information received on February 7, 2012 has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H .1000. Therefore, we are forwarding herewith Stormwater Management Permit SW6120102 dated March 2, 2012 for the construction, operation and maintenance of the subject project and associated BMP(s). This permit shall be effective from the date of issuance until March 1, 2022 and shall be subject to the conditions and limitations as specified therein. Please pay special attention to the Operation and Maintenance requirements in this permit. Failure to establish an adequate system for operation and maintenance of the stormwater management system will result in future compliance problems. If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory, hearing upon written request within thirty (30) calendar days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative. Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless such demands are made, this permit shall be final and binding. If you have any questions or need additional information concerning this matter, please contact Mike Lawyer at (910) 433-3329 or by e-mail at mike.lawyer@ncdenr.gov. Sincerely, ji;o-� ., g Belinda S. Henson Regional Supervisor Surface Water Protection Section BSH: ML/ml cc: Neal E. Smith, PE -Neal Smith Engineering, Inc. (via e-mail) Brent Lockamy, PE, Town Engineer -Town of Southern Pines (via e-mail) LFRO Surface Water Protection DWQ Central Files Location: 225 Green Street, Suite 714, Fayetteville, North Carolina 28301 Phone: 91DA33-33001 FAX: 910ASM7071 Customer Service: 1-877-623-6748 Internet http:llportal.nodenr.org/web/wq One NorthCarojina An Equal Opportunity V ARnnative Aclion Employer 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 Sandhills Presbyterian Church-Sandhills Classical Christian School Sandhills Classical Christian School Moore County FOR THE construction, operation and maintenance of a bioretention cell in compliance with the provisions of 15A NCAC 2H .1000 (hereafter referred to as the "stormwater rules') and the approved stormwater management plans and specifications and other supporting data as attached and on file with and approved by the Division of Water Quality and considered a part of this permit. This permit shall be effective from the date of issuance until March 1, 2022 and shall be subject to the following specified conditions and limitations: I. DESIGN STANDARDS This permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data. 2. This stormwater system has been approved for the management of stormwater runoff as described in Section 1.6 of this permit. The stormwater controls have been designed to handle the runoff from 10,013 square feet of additional built -upon area. 3. The tract will be limited to the amount of built -upon area indicated in Section 1.6 of this permit and per approved plans. 4. All stormwater collection and treatment systems must be located in either dedicated common areas or recorded easements. The final plats for the project will be recorded showing all such required easements, in accordance with the approved plans. 5. The runoff from all built -upon area within the permitted drainage area of this project must be directed into the permitted stormwater control system. 6. The following design criteria have been provided in the bioretention cell and must be maintained at design condition: a. Drainage Area, acres: 0.57 Onsite, ftZ: 25,178 Offsite, ftZ: 0 b. Total Impervious Surfaces, ftZ: 10,013 Buildings/Lots, ft2: Streets, ft2: Parking, ft2: Sidewalks, ft2: Other, ft2: C. Design Storm, inches: d. Max. Ponded Depth, inches: e. Seasonal High Water Table, fmsl: f. Planting Media Depth, feet: g. Cell Dimensions, feet: h. Planting Elevation, fmsl: i. Top Surface Area, ft2: j. Permitted Storage Volume, ft3: k. Bypass / Storage Elevation, fmsl: I. Drawdown Time, hours: M. Number of plant species provided j. Receiving Stream / River Basin: k. Stream Index Number: I. Classification of Water Body: II. SCHEDULE OF COMPLIANCE 8,726 0 0 1.287 0 1.0 9 426.67 3 60x20 439 1,154 995 439.75 4.5 6 UT to Mill Creek / Cape Fear 18-23-11-(2) "WS-III,B;HQW:@" 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 times, provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency. The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited to: a. Semi-annual scheduled inspections (every 6 months). b. Sediment removal. C. Mowing and re -vegetation of slopes and the vegetated filter. d. Immediate repair of eroded areas. e. Maintenance of all slopes in accordance with approved plans and specifications. f. Debris removal and unclogging of 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. Records of maintenance activities must be kept and made available upon request to authorized personnel of DWQ. The records will indicate the date, activity, name of person performing the work and what actions were taken. 5. The facilities shall be constructed as shown on the approved plans. This permit shall become voidable unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data. 6. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, a certification must be received from an appropriate designer for the system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation. Any deviations from the approved plans and specifications must be noted on the Certification. A modification may be required for those deviations. If the stormwater system was used as an Erosion Control device, it must be restored to design conditions prior to operation as a stormwater treatment device, and prior to occupancy of the facility. M8. Access to the stormwater facilities shall be maintained via appropriate easements at all times. 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 Erosion and Sedimentation Control Plan approval or a CAMA Major permit was sought. f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. 10. The permittee shall submit final site layout and grading plans for any permitted future areas shown on the approved plans, prior to construction. 11. A copy of the approved plans and specifications shall be maintained on file by the Permittee for a minimum of ten years from the date of the completion of construction. 12. The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements of the permit. Within the time frame specified in the notice, the permittee shall submit a written time schedule to the Director for modifying the site to meet minimum requirements. The permittee shall provide copies of revised plans and certification in writing to the Director that the changes have been made. 13. This permit shall be effective from the date of issuance until March 1, 2022. Application for permit renewal shall be submitted 180 days prior to the expiration date of this permit and must be accompanied by the processing fee. III. GENERAL CONDITIONS This permit is not transferable except after notice to and approval by the Director. In the event of a change of ownership, or a name change, the permittee must submit a formal permit transfer request to the Division of Water Quality, accompanied by a completed name/ownership change form, documentation from the parties involved, and other supporting materials as may be appropriate. The approval of this request will be considered on its merits and may or may not be approved. The permittee is responsible for compliance with all permit conditions until such time as the Division approves the transfer request. 2. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to enforcement action by the Division of Water Quality, in accordance with North Carolina General Statute 143-215.6A to 143-215.6C. 3. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances, which may be imposed by other government agencies (local, state, and federal) having jurisdiction. 4. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems. 5. The permittee grants DENR Staff permission to enter the property during normal business hours for the purpose of inspecting all components of the permitted stormwater management facility. The permit may be modified, revoked and reissued or terminated for cause. The filing of a request for a permit modification, revocation and reissuance or termination does not stay any permit condition. Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual. 8. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. 9. The permittee shall notify the Division any name, ownership or mailing address changes within thirty (30) calendar days. Permit issued this the second day of March 2012. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION for Charles Wakild, P.E., Director Division of Water Quality by Authority of the Environmental Management Commission Stormwater Management Permit SW6120102 .Sandhills Classical Christian School Stormwater Management Permit,SW6120102 Moore County Designer's Certification Page 1 of 2 I, , as a duly registered in the State of North Carolina, having been authorized to observe (periodically/ weekly/ full time) the construction of the project, (Project) for (Project Owner) hereby state that, to the best of my abilities, due care and diligence was used.in the observation of the project construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications. The checklist of items on page 2 of this form is a part of this Certification. Noted deviations from approved plans and specification: SEAL Signature Registration Number Date Certification Requirements: Page 2 of 2 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. 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: DWQ Fayetteville Regional Office Surface Water Protection 225 Green Street, Suite 714 Fayetteville, NC 28301 (k DWQ USE ONLY Date Received Fee Paid Permit dumber r Er Z 1 A sas' S' 01 a Z. Applicable Rules: (select all that apply) ❑ Coastal SW -1995 ❑ Coastal SW - ❑ Non -Coastal SW- HQW/ORW Waters ❑ Other WQ M mt Plan: 2008 ❑ Ph lI - Post Construction ❑ Universal Stormwa ter Management Plan State of North Carolina Department of Environment and Natural Resources 1�+ Division of Water Quality JAN j 2U12 STORMWATER MANAGEMENT PERMIT APPLICATION FOIL JqQ This form may be photocopied for use as an original I. GENERAL INFORMATION 1. Project Name (subdivision, facility, or establishment name -should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): Sandhills Classical Christian School 2. Location of Project (street address): 650 Pee Dee Road City:Southern Pines County:NC Zip:28315 3. Directions to project (from nearest major intersection): From the intersection of US HWY 1 and NC HWY 2, take HWY 2 towards Pinehurst, turn right onto Central Drive (NC HWY 22) towards Carthage, turn left on Pee Dee Road (approximately one mile), project will be ,immediately on the right. 4. Latitude:35° 12' 23.5722" N Longitude:-79° 23' 33.9138" W of the main entrance to the project. II. PERMIT INFORMATION 1. a. Specify whether project is (check one): ®New ❑Modification b.If this application is being submitted as the result of a modification to an existing permit, list the existing permit number , its issue date (if known) , and the status of construction ❑Not Started ❑Partially Completed* ❑ Completed* *provide a designer's 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 ®Secfimentation/Erosion Control: 1.26 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: Form SWU-101 Vcrsion 07Jun2010 Pal,,e I of 6 III. 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:Sandhills Classical Christian School Signing Official & Title:Roger W. Marx/School Board klember b.Contact information for person listed in item I above: Street Address:650 Pee Dee Road Citv:Southern Pines State:NC Zip28387 Mailing Address (1fapplicable): City: Phone: (910 ) 603-5557 State: Fax: ( 1 c. Please check the appropriate box. The applicant listed above is: ❑ The property owner (Skip to Contact Information, item 3a) ❑ Lessee* (Attach a copy of the lease agreement and complete Contact Information, item 2a and 2b below) ❑ Purchaser* (Attach a copy of the pending sales agreement and complete Contact Information, item 2a and 2b below) ® Developer* (Complete Contact Information, item 2a and 2b below.) 2. a. Print Property Owner's name and title below, if you are the lessee, purchaser or developer. (This is the person who owns the property that the project is located on): Property Owner/Organization: Sandhi IIs Presbyterian Church Signing Official & Title:Roger W. Marx/School Board Member b.Contact information for person listed in item 2a above: Street Address:650 Pee Dee Road City:Southern Pines State:NC Zip:28387 Mailing Address (if applicable): City: State Phone: ( 1 Fax Email: 3. a. (Optional) Print the name and title of another contact such as the project's construction supervisor or other person who can answer questions about the project: Other Contact Person/Organization: Signing Official & Title: b. Contact information for person listed in item 3a above: Mailing Address: City:_ Phone: LmaiI: 4. Local jurisdiction for building permits: State: Zi Fax: Point of Contact: Phone #: Form SWU-101 Version 07Jun2010 Paso 2 of IV. PROJECT INFORMATION L In the space provided below, briefly summarize how the stornnvater runoff will be treated. Stormwater will be directed to a bioretention cell via grassed diversions 2. a.If claiming vested rights, identify the supporting documents provided and the date they were approved: ❑ Approval of a Site Specific Development Plan or PUD Approval Date: ❑ Valid Building Permit Issued Date: ❑ Other: Date: b.If claiming vested rights, identify the regulation(s) the project has been designed in accordance with: ❑ Coastal SW - 1995 ❑ Ph II - Post Construction 3. Stormwater runoff from this project drains to the Cape Fear River basin. 4. Total Property Area: 11.31 acres 5. Total Coastal Wetlands Area: acres 6. Total Surface Water Area: acres 7. Total Property Area (4) - Total Coastal Wetlands Area (5) -Total Surface Water Area (6) = Total Project Area*:11.31 acres Total project area shall be calculated to exclude the following the normal pool of impounded structures, the area between the banks of streanns and rivers, the area below the Noonml High Water (NFMl line or Metal High Water (MHW) line, and coastal wetlands landward from the NHW (or MHW) tine. The resultant project area is used to calculate overall percent built upon area (BLIA). Non -coastal wetlands larutzvard of the NHW (or MHW) line pray be included in the total project area. 8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 =7.0< z" 61 T. 9. How many drainage areas does the project have?l (For high density, count 1 for each proposed engineered stormzvater BMP. For low density and otherprojects, 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 Draina e.Area _ Aiea' Drafty e Aeea''... Receiving Stream Name Unnamed -Drainage Stream Class * WS-III-HQW Stream Index Number * NA Total Drainage Area (so 25,178 On -site Drainage Area (so 25,178 Off -site Drainage Area (so 0 Proposed Impervious Area (so 10,013 % Impervious Area*' total 10,013 Im ervious" Surface Area Drainage Area 1 Drainage Area _ Draina e Ar6i. Drainage Area On -site 13uildings/Lots (so 8,726 On -site Streets (so On -site Parking (so On -site Sidewalks (so 1287 Other on -site (so Future (so Off -site (st) Existing 13UA*** (so Total (sr): 10013 Stream Class and Index Number can be determined at: httP://por6rl.ncd�nr.ortjuueh/ruq/Ps/isu/clnssificnfinns ** 11 ill ervious area is defined t is the built upon area including, but riot limited to, buildings, roads, parking areas, sidewalks, gravel areas, etc. Report vnll that amount Of existing BLIA that will remain after development. Do riot report any existing BLIA that is to be nuuoved nod which will be replaced by new BLIA. Form SWU-101 Version 07Jun2010 Pace 3 ot6 1"I. How was the off -site impervious area listen above determined? Provide documentation. The impervious area was determined from a site survey. Projects in Union County: Contact DIVO Central Office staff to check if the project is located within a Threatened & Endangered Species watershed that many be subject to more stringent stormwater requirements as per NClIC 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 BMP specified for this project. The latest versions of the forms can be downloaded from htt Zk)ortal.ncdenr.org web/%vq/ws/su/burp-manual. VI. SUBMITTAL REQUIREMENTS Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ). A complete package includes all of the items listed below. A detailed application instruction sheet and B1V1P checklists are available from http://portal.nc(lenr.or�/web/wq/ws/su/statesw/forms does. 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://poi tal.ncden r.or,/web/ wq/sys/su/maps.) Please indicate that the following required information have been provided by initialing in the space provided for each item. All original documents MUST be signed and initialed in blue ink. Download the latest versions for each submitted application package from http:ZZportal.ncdenr.org/%veb/N%'Ll/wS/SLIZstatesw/`fornis does. tiaLg 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 `L) Form. (if required as per Part VII below) 3. Original of the applicable Supplement Form(s) (sealed, signed and dated) and O&M agreement(s) for each BMP. 4. Permit application processing fee of $505 payable to NCDENR. (For an Express review, refer to http://www.envhelp.org/pa¢es/onestopexpress.html 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/mmnagementfor 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 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. I. Scale. g. Revision number and dates. h. Identify all surface waters on the plans by delineating the normal pool elevation of impounded structures, the banks of streams and rivers, the MHW or NHW line of tidal waters, and any coastal wetlands landward of the MHW or NFIVV 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 NF[W) of tidal waters. i. Dimensioned property/project boundary with bearings & distances. j. Site Layout with all BUA identified and dimensioned. k. Existing contours, proposed contours, spot elevations, finished floor elevations. 1. Details of roads, drainage features, collection systems, and stormwater control measures. m. Wetlands delineated, or a note on the plans that none exist. (Must be delineated by a qualified person. Provide documentation of qualifications and identify the person who made the determination on the plans. m Existing drainage (including off -site), drainage casements, pipe sizes, runoff calculations. o. Drainage areas delineated (included in the main set of plans, not as a separate document). Xe vJ Form SWLJ-101 Version 07Jun2010 Paee4 of p. Vegetated buffers (where required). 9. Copy of any applicable soils report with the associated Si-IWT elevations (Please identify c ) 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"xl I" copy of the NRCS County Soils map with the project area clearly delineated. For projects with infiltration BMPs, the report should also include the soil type, expected infiltration rate, and the method of determining the infiltration rate. (Infiltration Devices submitted to WiRO: Schedule a site visit for DWQ to vern)ij the SHWT prior to submittal, (910) 796-7378.) '10. A copy of the most current property deed. Deed book: 1483 Page No: 100 11. For corporations anti limited liability corporations (LLC): Provide documentation from the NC /A} _ Secretary of State or other official documentation, which supports the titles and positions held by the persons listed in Contact Information, itern 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. h ttp: / / wwc%,.secretory.state.nc.us/ Corporations / CSea rch. as px 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://I)ortatncclenr.org/web/wq/ws/su/statesw/forms does. 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. VHI. 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:Neal E. Smith, PE Consulting Firm: Neal Smith Engineering, Inc. Mailing Address:139 Pinehurst Ave. Suite C City:Southern Pines State:NC Zip:28387 Phone: (910 ) 695-8825 Emailmsmitli nsengineerinh.com Fax: (910 ) 695-8832 IX. PROPERTY OWNER AUTHORIZATION (if Contact Information, item 2 Ins been filled out, complete this section) 1, (print or type name of person listed in Contact Information, item 2m) , certify that I own the property identified in this permit application, and thus give permission to (print or hype name of person listed in Contact information, item 1n) with (print or type name of orsmrization listed in Contact Information, item la) 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. Form SWU-101 Version 07.Iu112010 Pace i oft, 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 civinalties of up to 525,000 per day, pursuant to NCGS'143-215.6. Date: 1,IM . SACUAC '�­_ avtd /YS a Notary Public for the State of t�or�k Larv1"n^_ County of _1Y1p0 ✓� , do hereby certify that e/ W • Alcig personally appeared before me this day of AnKg+� and now Jhe ju� n f the application for a stormwater permit. Witness my hand and official seal,/ �M\1111%I" MrryNP,1 ra" PNE S4,00k ,ftstscp .+• 5� OF+.'s a z oq� covN� Nrr�k1: n 1 u Jt\1P0 X. APPLICANT'S CERTIFICATION SEAL My commission expires_ I, (print or type nanne of person listed in Contact Information, item la) 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 stormwa rill s, u>;td�15A NCAC 2H .1000, SL 2006-246 (Ph. II - Post Construction) or St. 2008-211. Signature: �II^^� I (� 1D,ate:rrZ— I, - �� .1 dCri a Notary Public for the State of 0a� C aeo I 'AS , Countyof _oor � do hereby certify that Me$e� (%r Y`ti. A personally appeared before me this It day of anaa+�andc/knowle> _du�)e�.tiaq of the application for a stormwater permit. Witness my hand and official seal, -A PNtl«r«pryrr E �. #OT'*Y FN,' p AVBL�� mac,,: �nUN SEAL My commission expires ; Z -r bi T —J Form SWCJ-101 Version 07Jun2010 Page 6 of 6 Permit Na_$]ivG(Ze7i O Z (to be assgned by OWOJ IILtiREQUIRED`ITEMS,CHECKLIST.R!H4;'tx ,r„yu'r,::. ,",-'S"+�'x;,:;,'w,�,".g, v„y;:�:; rm ..; PNs,,,-,,,; 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. /Initials /5"J C 1 1. Plans (V - 50' or larger) of the entire site showing: - Design at ultimate build -out, - Off-sitedrainage(it applicable), ®ENR— FCC® PP1111 - Delineated drainage basins (include Rational C coefficient per basin), jl - Cell dimensions, - Pretreatment system, JAN 18 2012 -High flow bypass system, - Maintenance access, -Recorded drainage easement and public right of way (ROW), ®t1 v O - Clean out pipe locations, - Overflow device, and - Boundaries of drainage easement. C2 2. Plan details (1" = 30' or larger) for the biorelention cell showing: - Cell dimensions - Pretreatment system, - High flow bypass system, - Maintenance access, - Recorded drainage easement and public right of way (ROW), - 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 /�,'-V� I C2 r_c- 3. Section view of the biorelention cell (V = 20' or larger) showing: . - Side slopes, 3:1 or lower - Underdrain system (if applicable), and - Sioretention cell layers [ground level and slope, pre-treatment, pending depth, mulch depth, fill media depth, washed sand, filter fabric (or choking stone if applicable), 957 stone, underdrains (if applicable), SHWT level(s), and overflow struclurej � -V provided �VV 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 P-index, C2 5. A detailed planting plan Ili = 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. �i-V� � to be provide,,II� 'ti. An assurance that the installed system will meet design specifications upon initial operation once the ( t V C2 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 � entire drainage area is stabilized. -rV1 provided g, The supporting calculations (including underdrain calculations, if applicable). 1 h/ provided g A copy of the signed and notarized inspection and maintenance (I&M) agreement. N/A 10. A copy of the deed restriction. Forrn SW401-Bioreteraon Rev.] Pan H. Page 101 I El" NCDENR (to be provided by DWD) y 0 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 (Pad III) must be printed, filled out and submitted along with all of the required information. L, PROJECT, .INFORMATION-%?x,`, Project name Sandhills Classical Christian School Contact name Phone number Date Drainage area number, 1 I1?;'DESIGN INFORMATION nL-�Vl ": tt hlr errt.fKsz Site Characteristics Drainage area 25,178 hZ Impervious 10,013 Percent impervious 39.8% % DENR-FRO Design rainfall depth 1.0 inch BAN 1 8 ZUIZ Peak Flow Calculations Is pre/post control of the 1-yr, 24-hr peak flow required? Y (Y or N) � p �(1 Q 1-yr, 24-hr runoff depth - 3.1 in ®H i! 1-yr, 24-hr intensity - - 0.13 h1hr Pre -development 1-yr, 24-hr peak flow 0.010 ft'/sec Post -development 1-yr. 24-hr peak flow 0.250 ft'/sec Pre/Post 1-yr, 24-hr peak control 0.240 ft3/sec Storage Volume: Non -SA Waters Minimum volume required 856.0 ft' Volume provided 995.0 ft3 OK Storage Volume: SA Waters 1.5' runoff volume na ft' Pre -development 1-yr, 24-hr runoff ft1 Post -development 1-yr, 24-hr runoff ff' Minimum volume required na it Volume provided na ft1 OK Cell Dimensions Ponding depth of water 9 inches OK Ponding depth of water 0.75 It Surface area of the top of the biorelention cell 1,154.0 it OK Length: 60 ft OK Width: 20 ft OK -or- Radius 10 ft OK Media and Soils Summary Drawdown time, ponded volume 4.5 hr OK Drawdown time, to 24 inches below surface 16.5 hr OK Drawdown time, total: 21 hr In -situ soil' Soil permeability 6.21 in/hr OK Planting media soil: Soil permeability 2.00 in/hr OK Soil composition % Sand (by volume) 85% OK °/ Fines (by volume) 10% OK • Organic (by volume) 5% OK Total: 100% Phosphorus Index (P-Index) of media 10 (unitless) OK Form SW401-sioretention-Rev.8 June 25, 2010 Parts I and II. Design Summary, Page I of 2 rerr vumue[ (to be provided by DWO) Basin Elevations Temporary pool elevation 439,75 frost 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 treeslshrubs? Y (Y or N) Planting elevation (top of the mulch or grass sod layer) 439 fmsl Depth of mulch 0 inches Bottom of the planting media soil 436 first Planting media depth 3 It Depth of washed sand below planting media soil 0 It 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 0 It bottom of the cell to account for underdrains Bottom of the cell required 436 fmsl SHWT elevation 426.67 fmsl Distance from bottom to SHWT 9.33 It Internal Water Storage Zone (IWS) Does the design include IWS ..Y (Y or N) Elevation of the top of the upturned elbow fmsl Separation of IWS and Surface 439 It 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 (Y or N) bioretention cell? y Does volume in excess of the design volume flow evenly distributed (Y or N) through a vegetated filter? y What is the length of the vegetated filter? It Does the design use a level spreader to evenly distribute flow? 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 It of grass) Grassed swale Forebay Other OK media depth Insufficient mulch depth, unless installing grassed cell. JAN 18 2012 OK ri OK .y (Y or N) Submit a level spreader supplement. Y* (Y or N) OK y (Y or N) OK y (Y or N) OK y (Y or N) OK 0.5 f /sec OK in (Y or N) OK n (Y or N) OK y (Y or N) OK OK Form SW401-Biaretention-Rev.8 June 25, 2010 Parts I and II. Design Summary, Page 2 of 2 f..y J G OF N, rP9 J NCDENR ' `�- STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM LEVEL SPREADER, FILTER STRIP AND RESTORED RIPARIAN BUFFER SUPPLEMENT This form must be completely filled out, printed and submitted. DO NOT FORGET TO ATTACH THE REQUIRED ITEMS CHECKLIST AND ALL REQUIRED ITEMS (NEXT WORKSHEET)I I. PROJECTJNFORMATION Project name Sandhills Classical Christian School Contact name Phone number Date Drainage area number IQDESIGN INFORMATION>s c.s.`+" -4 3s. i t p x 3�F3 . �> • w., f 4..33ss sa;,at 7ta ,:;fi to g anti ?, For Level Spreaders Receiving Flow From a BMP Type of BMP Bioretention Drawdown Flow from the BMP 2.50 cis For Level Spreaders Receiving Flow from the Drainage Area Drainage area ffz Impervious surface area .. ft, Percent impervious °% Rational C coefficient Peak flow from the 1 inlhr storm cfs Time of concentration - min Rainfall intensity, 10-yr storm inlhr Peak flow from the 10-vr storm cfs Where Does the Level Spreader Discharge? To a grassed bioretenlion cell? N - (Y or N) To a mulched bioretenlion cell? .N (Y or N) To a wetland? 'N (Y or N) To a filter strip or riparian buffer? Y - (Y or N) Other (specify) Filter Strip or Riparian Buffer Characterization (if applicable) Width of grass Width of dense ground cover Width of wooded vegetation Total width Elevation at downslope base of level lip Elevation at top of bank of the receiving water Slope (from level lip to to top of bank) Are any draws present? Level Spreader Design Forebay surface area Feet of level lip needed per cfs Answer "Y" to one of the following: Length based on the 1 inlhr storm? Length based on the 10-yr storm? Length based on the BMP discharge rate? Design flow Is a bypass device provided? Do not complete this section of the worksheet. Do not complete this section of the worksheet. DENR—FRO Do not complete this section of the worksheet 761Y Do not complete this section of the NorkShect. Do not complete this section of the worksheel. r� JAN 18 2012 Do not complete this section of the worksheel. Do not complete this section of the worksheet, ®YV% Do not complete this section of the worksheet. Please complete filter strip characlenzation below. 30.00 It 0.00 ft 0.00 It 30.00 it 438.73 fmsl 438.60 fmsl 0.43 % OK N (Y or N) OK sat it No icebay is needed. 13 ft/cfs N (Y or N) N (Y or N) Y (Y or N) 2,50 cfs Y (Y or N) OK Form SW401-Level Spreader, Filter Strip, Restored Riparian Furfer-Rev.e Parts I. and ll. Design Summary. page 1 of 2 Length of the level lip 33.00 ft @VALUE! Are level spreaders in series? N (Y or N) Bypass Channel Design (if applicable) Does the bypass discharge through a wetland? N (Y or N) Does the channel enter the stream at an angle? NA (Y or N) Dimensions of the channel (see diagram below): M it B ft W ft y ft Peak velocity in the channel during the 10-yr storm cfs Channel lining material t•------------- y I -------------i B i Form SW401-Level Spreader. Filler Strip, Restored Riparian Buffer-Rev.5 Parts I. and I. Design Summary, page 2 of 2 I'l'rmlL N❑❑1hLC��� fru be provided by DiVQ) Driinagc Area Number I Bioretention Operation and Maintenance Agreement I will keep a maintenance record on this BlNIP. 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 B:NIP. F�® DENR Important operation and maintenance procedures: 1414 1 $ 2612 — Immediately after the bioretention cell is established, the plants will be watered twice weekly if needed until the plants become established (commonly six weeks). N — 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 wilt 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 the roblem: 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). Form SW401-13iorctcnlion O&M-Rcv3 P;igc I ol'4 BMP element: The pretreatment area The bioretention cell: vegetation The bioretention cell: soils and mulch Potential problems: Plow is bypassing pretreatment area and/or gullies have formed. Sediment has acamnilatCd 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 arc 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 1 will remediate the problem Regrade if nccessary to route all flow to the prctreatmentarea. Restabilize the area after radin 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 nudch 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 nmximum 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 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 AI-Rev.3 Page 2 of 4 BNIP element: Potentialproblems: How I will remediate theproblem: The underdrain system (if applicable) Clogging has occurred. Wash out the underdrain system. The drop inlet Clogging has occurred. Clean out the drop inlet. Dispose of the sediment off -site. The drop inlet is lama red Rc ❑ir or replace the dropinlet. 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- o u tlet. 733-17'8E Form SW401-13iurctentiun O&M-Rev.3 Pagc 3 of 4 . y Permit Number:: L-I p ?G O/aZ (to be provided by UWO 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:Sanhills Classical Christian School Bl1'IP cb-ainage area ntimber: Print name: Gcley L'J Title: S C C1� — C Address: / <G il�Eff tINI`t k�--I , S o , I h "'� ?, "V'c S : /V( — 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, I t ..1 � m6yl n P ✓S 'n A , a Notary Public for the State of 30 r� Dora I oot,^ , County of yyhe o✓t , do hereby certify that 11�2 (N _ ►v wr x personally appeared before me this day of w.. 0 11- , and acknowledge the due execution of the forgoing bioretention maintenance requirements. Witness my hand and official seal, My commission expires 13 Form SW401-Bioretention IRib1-Rev. 2 Page 4 0l' 4 Permit Nmnber:�3Lo Q (to be provided by UIVQ) Drainage Area Number._ Filter Strip, Restored Riparian Buffer and Level Spreader Operation and Maintenance Agreement I will keep a maintenance record on this BMW. This maintenance record will be kept in a login 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 efficiencv of the BMP. Important maintenance procedures: — Immediately after the filter strip is established, any newly planteld vlegl to tion 7�® will be watered twice weekly if needed until the plants become established (commonly six weeks). JAN 1 8 2012 — Once a year, the filter strip will be reseeded to maintain a dense growth of vegetation IR VV0 — Stable groundcover will be maintained in the drainage area to reduce the sediment load to the vegetation. — Two to three times a year, grass filter strips will be mowed and the clippings harvested to promote the growth of thick vegetation with optimum pollutant removal efficiency. Turf grass should not be cut shorter than 3 to 5 inches and may be allowed to grow as tall as 12 inches depending on aesthetic requirements (NIPC, 1993). Forested filter strips do not require this type of maintenance. — Once a year, the soil will be aerated if necessary. — Once a year, soil pH will be tested and time will be added if necessary. After the filter strip is established, it will be inspected quarterly and within 24 hours after every storm event greater than 1.0 inch (or 1.5 inches if in a Coastal County). Records of operation and maintenance will be kept in a known set location and will be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. BMP element: Potentialproblem: How I will remediate theproblem: The entire filter strip Trash/clebris is present. Remove the trash/debris. system The flow splitter device The flow splitter device is Unclog the conveyance and dispose (if applicable) clogged. of any sediment off -site. The flow splitter device is Make any necessary repairs or damaged. replace if damage is too large for repair. Form SWU40I-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page I of' 3 i - _ " BMP element: Potentialproblem: Flow 1 will remediate theproblem: The Swale and the level The Swale is clogged with Remove the sediment and dispose lip sediment. of it off -site. The level lip is cracked, Repair or replace lip. settled, undercut, eroded or otherwise damaged. There is erosion around the Regrade the soil to create a berm end of the level spreader that that is higher than the level lip, and shows stormwater has then plant a ground cover and bypassed it. water until it is established. Provide lime and a one-time fertilizer application. Trees or shrubs have begun Remove them. to grow on the swale or just downslo e of the level lip. The bypass channel Areas of bare soil and/or Regrade the soil if necessary to erosive gullies have formed. remove the gully, and then reestablish proper erosion control. Turf reinforcement is Study the site to see if a larger damaged or ripap is rolling bypass channel is needed (enlarge if downhill. necessary). After this, reestablish the erosion control material. The filter strip Grass is too short or too long Maintain grass at a height of if applicable). approximately three to six inches. Areas of bare soil and/or Regrade the soil if necessary to erosive gullies have formed. remove the gully, and then plant a ground cover and water until it is established. Provide lime and a one-time fertilizer application. Sediment is building up on Remove the sediment and the filter strip. restabilize the soil with vegetation if necessary. Provide lime and a one- time fertilizer application. Plants are desiccated. Provide additional irrigation and fertilizer as needed. Plants are dead, diseased or Determine the source of the dying. problem: soils, hydrology, disease, etc. Remedy the problem and replace plants. Provide a one-time fertilizer application. Nuisance vegetation is Remove vegetation by hand if choking out desirable species. possible. If pesticide is used, do not . allow it to get into the receiving water. The receiving water Erosion or other signs of Contact the NC Division of Water damage have occurred at the Quality local Regional Office, or the outlet. 401 Oversight Unit at 919-733-1786. Form SWU401-Level Spreader, Filter Strip, Restored Riparian Buffer O&M-Rev.3 Page 2 of 3 Permit Number:: W 6/ d Zi (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:Sandhills Classical Christian School QiVIP drainage area number: Print name: (C_c e�'/ Title: ac Address: 1 0 F�GC �cC Phone: qlG ,& C 3. 5— Signature: o -< C Ale, 6,.t 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, s6he SSA yX �6V_5 , a Notary Public for the State of or grp�7.1 County of Omen e - do hereby certify that �o�e W . Yler x personally appeared before me this day of Jo s,,cQ,,.n 40 1, and acknowledge the due execution of the forgoing filter strip, riparian buffer, and/or level spreader maintenance requirements. Witness my hand and official seal, MMIMti 21 SEAL My commission expires 2h31 Z4 T C Form SWU401-Level Spreader, Filter Strip, Restored Riparian BufferOKM-RQv.3 Page 3 of3