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HomeMy WebLinkAboutSW8160916_Current Permit_20161117 PAT McCRORY Governor DONALD R. VAN DER VAART go. Secretary Energy,Mineral& TRACY DAVIS Land Resources Director ENVIRONMENTAL QUALITY November 17,2016 Chris Vernon,Lead Pastor NC East District of the Wesleyan Church and Crosswinds Church 485 Olde Waterford Way Belville,NC 28451 Subject: State Stormwater Management Permit No. SW8160916 Crosswinds Church High Density Wet Detention Pond Project Brunswick County Dear Mr. Vernon: The Wilmington Regional Office received a complete Stormwater Management Permit Application for Crosswinds Church on September 26,2016. 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 2008-211. We are forwarding Permit No. SW8 160916 dated November 17, 2016 for the construction, operation and maintenance of the BMP's and built-upon areas associated with the subject project. This permit shall be effective from the date of issuance until November 17,2024, and shall be subject to the conditions and limitations as specified therein. Please pay special attention to the conditions listed in this permit regarding the Operation and Maintenance of the BMP(s),recordation of deed restrictions, certification of the BMP's,procedures for changing ownership,transferring the permit, and renewing the permit. Failure to establish an adequate system for operation and maintenance of the stormwater management system,to record deed restrictions,to certify the BMP's,to transfer the permit, or to renew the permit,will result in future compliance problems. If any parts,requirements,or limitations contained in this permit are unacceptable,you have the right to request an adjudicatory hearing by filing a written petition with the Office of Administrative Hearings (OAH). The written petition must conform to Chapter 150B of the North Carolina General Statutes, and must be filed with the OAH within thirty(30)days of receipt of this permit. You should contact the OAH with all questions regarding the filing fee(if a filing fee is required)and/or the details of the filing process at 6714 Mail Service Center,Raleigh,NC 27699-6714, or via telephone at 919-43 1-3 000, or visit their website at www.NCOAH.com.Unless such demands are made this permit shall be final and binding. If you have any questions,or need additional information, please contact Steve Pusey in the Wilmington Regional Office, at(910) 796-7215. Sincerely, &S ` Tracy Davos,P.E.,Director Division of Energy,Mineral and Land Resources GDS/sgp: \\\Stormwater\Permits&Projects\2016\160916 HD\2016 11 permit 160916 cc: Branch Smith,PE—Paramounte Engineering,Inc. Brunswick County Building Inspections Brunswick County Engineering Wilmington Regional Office Stormwater File State of North Carolina I Environmental Quality I Energy.Mineral and Land Resources Wilmington Regional Office 1 127 Cardinal Drive Extension I Mimington,NC 28405 910 796 7215 State Stormwater Management Systems Permit No. SW8 160916 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF ENERGY, MINERAL AND LAND RESOURCES STATE STORMWATER MANAGEMENT PERMIT HIGH DENSITY DEVELOPMENT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO NC East District of the Wesleyan Church and Crosswinds Church Crosswinds Church 445 Lanvale Rd., Leland, Brunswick County FOR THE construction, operation and maintenance of one (1) wet detention pond in compliance with the provisions of 15A NCAC 2H .1000 and Session Law 2008-211 (hereafter referred to as the "stormwater rules') the approved stormwater management plans and specifications and other supporting data as attached and on file with and approved by the Division of Energy, Mineral and Land Resources (hereafter referred to as the Division or DEMLR) and considered a part of this permit. This permit shall be effective from the date of issuance until November 17, 2024, and shall be subject to the following specified conditions and limitations: I. DESIGN STANDARDS 1. This permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data. 2. This stormwater system has been approved for the management of stormwater runoff as described in Section 1.7 of this permit. The runoff from all built-upon area within the permitted drainage area(s) of this project must be directed into the permitted stormwater control measure(s). The stormwater control measure has been designed to handle the runoff from 90,100 square feet of impervious area. 3. The maximum built-upon area allowed for the entire project is 90,100 square feet. 4. The drainage area(s) will be limited to the amount(s) of built-upon area indicated in Sections 1.2 and 1.7 of this permit, and per approved plans. The built-upon area for the future development is limited to 15,000 square feet and is included in the maximum built-upon area of 90,100 square feet. 5. A 50' wide vegetative buffer must be provided and maintained adjacent surface waters, measured horizontally from and perpendicular to the normal pool of impounded structures, the top of bank of both sides of streams and rivers and the mean high water line of tidal waters. 6. All runoff being directed into wetlands shall flow into and through those wetlands at a non-erosive velocity. Page 1 of 7 State Stormwater Management Systems Permit No. SW8 160916 7. The following design criteria have been permitted for the wet detention pond and it must be provided and maintained at the design condition: Wet Pond 1 a. Drainage Area, acres: 3.57 Onsite, ft2: 155,509 Offsite, ft2: 0 b. Total Impervious Surfaces, ft2: 90,100 Onsite, ft2: 75,100 Future, ft2: 15,000 Offsite, ft2: 0 c. Average Pond Design Depth, feet: 3.5 d. TSS Removal Efficiency: 90 e. Design Storm, inches: 1.5 f. Permanent Pool PP Elevation, FMSL: 38.5 g. Permitted PP Surface Area, ft2: 12,685 h. Temporary Storage Elevation, FMSL: 39.3 i. Permitted Storage Volume, ft3: 11,325 j. Predevelopment 1 r-24 hr. discharge rate, cfs: 5.5 k. Controlling V-notch: 40 de I. Orifice Flow Rate, cfs: 0.03 m. PP Volume, ft3: 34,956 n. Forebay Volume, ft3: 6,951 o. Maximum Fountain Horsepower: 1/8 p. Receiving Stream/River Basin: Jacke s Creek/Cape Fear q. Stream Index Number: 18-77-3 r. Classification of Water Body: Q SW II. SCHEDULE OF COMPLIANCE 1. No person or entity, including the permittee, shall alter any component of the approved stormwater system shown on the approved plans unless and until the Division has approved of the revised plan. 2. The stormwater management system shall be constructed in its entirety, vegetated and operational for its intended use prior to the construction of any built-upon surface. 3. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. If the stormwater system is 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. 4. The permittee shall at all times provide the operation and maintenance necessary to assure that all components of the permitted stormwater system function at design condition. The approved Operation and Maintenance Agreement is incorporated by reference into this permit and must be followed in its entirety and maintenance must occur at the scheduled intervals. 5. Records of maintenance activities must be kept and made available upon request to authorized personnel of the Division. The records will indicate the date, activity, name of person performing the work and what actions were taken. Page 2 of 7 State Stormwater Management Systems Permit No. SW8 160916 6. If the permanent pool volume is greater than 30,000 cubic feet, a decorative spray fountain will be allowed in the stormwater treatment system, subject to the following criteria: a. The fountain must draw its water from less than 2' below the permanent pool surface. b. Separated units, where the nozzle, pump and intake are connected by tubing, may be used only if they draw water from the surface in the deepest part of the pond. C. The falling water from the fountain must be centered in the pond, away from the shoreline. d. The maximum horsepower for a fountain in this pond is 1/8 horsepower. 7. The facilities shall be constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data. 8. Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, the permittee shall cause a certification from an appropriate designer for the system installed to be submitted, 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. 9. All stormwater collection and treatment systems must be located in either public rights- of-way, dedicated common areas or recorded easements. The final plats for the project will be recorded showing all such rights-of-way, common areas and easements, in accordance with the approved plans. Access to the stormwater facilities for inspection and maintenance 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. Redesign or addition to the approved amount of built-upon area or to the drainage area. C. Further development, subdivision, acquisition, lease or sale of any, all or part of the project area. The project area is defined as all property owned by the permittee, for which Sedimentation and Erosion Control Plan approval or a CAMA Major permit was sought. d. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. e. The construction of any future BUA listed on the application. 11. Prior to transfer of the permit, the stormwater facilities will be inspected by Division personnel. The project and the stormwater facility must be in substantial compliance with all permit conditions. Any items not in substantial compliance must be repaired, replaced or restored to design condition prior to the transfer. Records of maintenance activities performed to date will be required. 12. The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements of the permit. Within the time frame specified in the notice, the permittee shall submit a written time schedule to the Director for modifying the site to meet minimum requirements. The permittee shall provide copies of revised plans and certification in writing to the Director that the changes have been made. Page 3 of 7 State Stormwater Management Systems Permit No. SW8 160916 III. GENERAL CONDITIONS 1. Any individual or entity found to be in noncompliance with the provisions of a stormwater management permit or the Stormwater rules is subject to enforcement procedures as set forth in NCGS 143 Article 21. 2. 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. 3. In the event that the facilities fail to perform satisfactorily 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. Additional or replacement stormwater management systems shall receive a permit from the Division prior to construction. 4. This permit is not transferable to any person or entity except after notice to and approval by the Director. The permittee shall submit a completed and signed Name/Ownership Change Form, accompanied by the supporting documentation as listed on the form, to the Division of Energy, Mineral and Land Resources at least 60 days prior to any one or more of the following events: a. An ownership change including the sale or conveyance of the project area in whole or in part, except in the case of an individual lot sale that is made subject to the recorded deed restrictions; b. The sale or conveyance of the common areas to a Homeowner's or Property Owner's Association, subject to the requirements of Session Law 2011-256; c. Bankruptcy; d. Foreclosure, subject to the requirements of Session Law 2013-121; e. Dissolution of the partnership or corporate entity, subject to NCGS 57D-2-01(e) and NCGS 57D-6-07; f. A name change of the current permittee; g. A name change of the project; h. A mailing address change of the permittee; 5. The permittee is responsible for compliance with all permit conditions until such time as the Division approves the transfer request. Neither the sale of the project, in whole or in part, nor the conveyance of common area to a third party constitutes an approved transfer of the stormwater permit. 6. The permittee grants DEMLR 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 modified, revoked, terminated or renewed. 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. Approved plans, calculations, supplement forms, operation and maintenance agreements and specifications for this project are incorporated by reference and are enforceable parts of the permit. A copy of the approved plans and specifications shall be maintained on file by the Permittee at all times. 9. Unless specified elsewhere, permanent seeding requirements for the stormwater control measure must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual. Page 4of7 State Stormwater Management Systems Permit No. SW8 160916 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 submit a permit renewal application request at least 180 days prior to the expiration date of this permit. The renewal request must include the appropriate application, documentation and the processing fee. Permit issued this the 17th day of November, 2016. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION racy Daags, P.E., Director Division of Energy, Mineral and Land Resources By Authority of the Environmental Management Commission Permit Number SW8 160916 Page 5 of 7 State Stormwater Management Systems Permit No. SW8 160916 Crosswinds Church Stormwater Permit No. SW8 160916 Brunswick 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) 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 specifications: SEAL Signature Registration Number Date Page 6 of 7 operation & maintenance A reement Project Name: Crosswinds Church Project Location: Lanvale Rd, Town Creek Township, Brunswick Co. Cover page Maintenance records shall be kept on the following BMP(s). This maintenance record shall be kept in a log in a known set location. Any deficient BMP elements noted in the inspection will be corrected, repaired, or replaced immeaiawiy These deficiencies can affect the integrity of structures, safety of the public, and the pollutant removal efficiency of the BMP(s). The BMP(s)on this project include(check all that apply&corres; riding O&M tables will be added automatically): Bioretention Cell Quantity: Location(s): Dry Detention Basin Quantity: Location(s): Grassed Swale Quantity: Location(s): Green Roof Quantity: Location(s): Infiltration Basin Quantity: Location(s): Infiltration Trench Quantity: Location(s): Level SpreaderNFS Quantity: Location(s): Permeable Pavement Quantity: Location(s): Proprietary System Quantity: Location(s): Rainwater Harvesting Quantity: Location(s): Sand Filter Quantity: Location(s): Stormwater Wetland Quantity: Location(s): Wet Detention Basin Quantity: 1 Location(s): SW Corner of Site Disconnected Impervious Area Present: No Location(s): User Defined BMP Present: No Location(s): I acknowledge and agree by my signature below that I am responsible for the performance of the maintenance procedures listed for each BMP above, and attached O&M tables. I agree to notify NCDENR of any problems with the system or prior to any changes to the system or responsible party. *Responsible Party: G IW§ Title&Organization: Street address: City,state,zip: • Phone number(s): „ Email: Signature: Date: I. h Rini y ► G tlhon ,a Notary Public for the State of 0 C County of (�C un-sW' Lk ,do hearby certify that personally appeared before me this day of (A -3' ,I Ul (® and acknowledge the due execution of the Operations and Maintenarice Agreement. Witness my hand and official seal, ? NOT �. o' SEP Z 1 201 ABY- Sea/ ,,#811r►y%Vou • My commission expires - G-J'A STORM-EZ „ ,„ Wet Dag_nillon Pond raintenance Rctluirements The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the vegetated filter if one is provided. Important maintenance procedures: Immediately after the wet detention basin is established,the plants on the vegetated shelf and perimeter of the basin should be watered twice weekly if needed, until the plants become established(commonly six weeks). _ No portion of the wet detention pond should be fertilized after the first initial fertilization that is required to establish the plants on the vegetated shelf. - Stable groundcover should be maintained in the drainage area to reduce the sediment load to the wet detention basin. If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through the emergency drain should be minimized to the maximum extent practical. - Once a year, a dam safety expert should inspect the embankment. After the wet detention pond is established, it should be inspected 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 should be kept in a known set location and must be available upon request. Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. BMP element: Potential problem: How I will remediate the problem: The entire BMP Trash/debris is present. Remove the trash/debris. The perimeter of the BMP Areas of bare soil and/or erosive Regrade the soil if necessary to remove the gully, and then plant a ground gullies have formed. cover and water until it is established. Provide lime and a one-time fertilizer application. Vegetation is too short or too Maintain vegetation at a height of approximately sic inches. long. The inlet device The pipe is clogged. Unclog the pipe. Dispose of the sediment off-site. The pipe is cracked or otherwise Replace the pipe. damaged. Erosion is occurring in the swale. Regrade the swale if necessary to 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 replace with clean stone. covered in sediment(if applicable). The forebay Sediment has accumulated to a Search for the source of the sediment and remedy the problem if possible. depth greater than the original Remove the sediment and dispose of it in a location where it will not cause design depth for sediment impacts to streams or the BMP. storage. Erosion has occurred. Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems. Weeds are present. Remove the weeds, preferably by hand. If pesticide is used,wipe it on the plants rather than spraying. The vegetated shelf Best professional practices show Prune according to best professional practices that pruning is needed to maintain optimal plant health. Plants are dead, diseased or Determine the source of the problem: soils, hydrology,disease, etc. dying. 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. Weeds are present. Remove the weeds, preferably b Vf wipe it on the plants rather than spraying. BY: STORM-EZ Wet Detention Pond Maintenance Requirements(Continued) The main treatment area Sediment has accumulated to a Search for the source of the sediment and remedy the problem if possible. depth greater than the original Remove the sediment and dispose of it in a location where it will not cause design sediment storage depth. impacts to streams or the BMR Algal growth covers over 50%of Consult a professional to remove and control the algal growth. the area. Cattails, phragmites or other Remove the plants by wiping them with pesticide(do not spray). invasive plants cover 50%of the basin surface. The embankment Shrubs have started to grow on Remove shrubs immediately. the embankment. Evidence of muskrat or beaver Use traps to remove muskrats and consult a professional to remove activity is present. beavers. Atree has started to grow on the Consult a dam safety specialist to remove the tree. embankment. An annual inspection by an Make all needed repairs. appropriate professional shows that the embankment needs repair (if applicable) The outlet device Clogging has occurred. Clean out the outlet device. Dispose of the sediment off-site. The outlet device is damaged Repair or replace the outlet device. The receiving water Erosion or other signs of Contact the local NC Department of Environment and Natural Resources damage have occurred at the Regional Office. outlet. The measuring device used to determine the sediment elevation shall be such that it will give an accurate depth reading and not readily penetrate into accumulated sediments. ECEIVG SEP z 12016 BY: STORM-EZ Wet Detention Pond Design Summary Wet Pond �m WET POND ID FOREBAY MAIN POND Pond 1 Permanent Pool El. 38.5 Permanent Pool El. 38.5 Temporary Pool El: 39.3 Temporary Pool El: 39.3 Pretreatment other No Clean Out Depth: 4.5 Clean Out Depth: 4.5 than forebay? Sediment Removal El: 34 Sediment Removal El: 34 Has Veg.Filter? No Bottom Elevation: 33 Bottom Elevation: 33 ECE IVE BY: STORM-EZ 9/20/2016 Version 1.4 O&M Manual Page 4 of 4 DEMLRUSE ONLY Date ved Fee d Permit Number Applicable R es: Coastal SW-1995 ❑ Coastal SW-2008 ❑Ph 11-Post ns 'on (:`elect all that apply) ❑Non-Coastal SW-HQW/ORW Waters ❑Universal Stormwater Management Plan ❑Other WQ M mt Plan: State of North Carolina Department of Environment and Natural Resources Division of Energy,Mineral and Land Resources STORMWATER MANAGEMENT PERMIT APPLICATION FORM 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, �l a=specifications,letters,operation and maintenance agreements,etc.): H c- F 54 -D;6+r Jr c_Iti final Crosswinds Church 2. Location of Project(street address): 445 Lanvale Road City:Leland County:Brunswick Zip:28451 3. Directions to project(from nearest major intersection): Travel US 74-76 vast Leland;Take Right on Mercantile Drive at Windsor Industrial Park;Site is on Vacant Lot on Right Corner 4. Latitude:34*12'48.2"N Longitude:78*3'14.3"W of the main entrance to the project. II. PERMIT INFORMATION: 1.a.Specify whether project is(check one): ®New []Modification ❑Renewal w/ Modificationt tRenewals with modifications also requires SWU-102-Renewal Application Form 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 Ietter from DEMLR requesting a state stormwater management permit application,list the stormwater project number, if assigned, and the previous name of the project,if different than currently proposed, 4.a.Additional Project Requirements(check applicable blanks;information on required state permits can be obtained by contacting the Customer.Service Center at 1-877-623-6748): ❑LAMA Major [@Sedimentation/Erosion Control:5.0 ac of Disturbed Area ❑NPDES Industrial Stormwater 0404/401 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: 5. Is the project located within 5 miles of a public airport? ®No []Yes Ifyes,seeS.L.2012-200,PartV1. httn://yortal.ncdenr.org/web/lr/rules-and-regulations , r f—t SEP 21 20? BY: Form SWU-101 Version Oct.31,2013 Page 1 of 6 III. CONTACT INFORMATIONS 1.a.Print Applicant / Signing Official's name and title(specifically the developer,property owner,lessee, designated government official,individual,etc.who owns the project): is G E,4 �is�r i '� des k y can esti-.rg �d C SwIN M CAvmc lr1 r Applicant/Organization: � Signing Official&Title: C4-t1At5 \(emoo", LGAD b.Contact information for person listed in item 1a above: Street Address: 455 OLZS WPe EEOMP Wky' City: "3Fa►V(L.1S State: Kc Zip: Z91ES 1 Mailing Address(if applicable): City: State: Zip: Phone: ((q ED ) 3619—VAI Fax: Email: c.Please check the appropriate box.The applicant listed above is: O'Tlte property owner(Skip to Contact Information,item 3a) ❑Lessee*(Attach a copy of the lease agreement and complete Contact Information,item 2a and 2b below) ❑Purchaser*(Attach a copy of the pending sales agreement and complete Contact Information,item 2a and 2b below) ❑Developer*(Complete Contact Information,item 2a and 2b below.) 2.a.Print Property Owner's name and title below,if you are the lessee,purchaser or developer. (This is the person who owns the property that the project is located on): Property Owner/Organization: Signing Official&Title: b.Contact information for person listed in item 2a above: Street Address: City: State: Zip: Mailing Address(if applicable): City: State: Zip: Phone: ( ) Fax: i 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: I-A ku< Vr--21Ub14 Signing Official&Title: b.Contact information for person listed in item 3a above: Mailing Address: 41515 mpg wA,,T-,Q Ivy WA%r City: 13a-VILLZ State: Zip: Phone: 10 (q W AX 0 Fax: Email: RyeeNC L C Z95 W(40s u .Conk 4. Local jurisdiction for building permits: Point of Contact: Phone#: Form SWU-101 Version Oct.31,2013 Page 2 of 6 IV. PROJECT INFORMATION 1. In the space provided below,briefly summarize how the stormwater runoff will be treated. Runoff from parking and buildings will be conveyed through pipe network()to a single wet detention pond 2.a.Tf 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:12.43 acres 5. Total Coastal Wetlands Area:0 acres 6. Total Surface Water Area: 0 acres 7. Total Property Area(4)-Total Coastal Wetlands Area(5)-Total Surface Water Area(6)=Total Project Area+: 10.41 acres + Total project area shall be calculated to exclude the following: the normal pool of impounded structures, the area between the banks of streams and rivers, the area below the Normal High Water(NHW) line or Mean High Water (MHW)line,and coastal wetlands landward from the NHW(or MHiN)line. The resultant project area is used to calculate overall percent built upon area(BUA). Non-coastal wetlands landward of the NHW(or MHM line may be included in the total project area. 8. Project percent of impervious area: (Total Impervious Area/ Total Project Area)X 100 =57.9 % 9. How many drainage areas does the project have?1 (For high density, count 1 for each proposed engineered stormwate;BMP. For low density and other projects,use i 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 3 Drainage Area_ Drainage Area_ Drainage Area_ Receiving Stream Name Jackeys Creek Stream Class * C;Sw Stream Index Number* 18-77-3 Total Drainage Area(so 155,509 On-site Drainage Area(sf) 155,509 Off-site Drainage Area(sf) 0 Proposed Impervious Area** s 90,100 % Impervious Area** total 57.9% Impervious"Surface Area Drainage Area 3 Drainage Area_ Drainage Area_ Drainage Area_ On-site Buildings/Lots(sf) 11,300 On-site Streets (sf) 0 On-site Parking (sf) 60,600 On-site Sidewalks (sf) 3,200 Other on-site (sf) Future(sf) 15,000 Off-site (sf) Existing BUA***(sf) Total (sf): 90,100 * Stream Class and Index Number can be determined at: http,*ortal.ncdenr.orgfweb/wq&s/csu/classifications T a i o +c o FL.a h 1+, 1,i s limited mpermous area defined a "w uiit upon area including,but,not limited to, buildings,roads,parking areas, sidewalks,gravel areas,etc. 'Report only that amount of existing BLIA that will remain after development. Do not report any existing BLIA that is to be removed and which will be replaced by new BUA. Form SWU-101 Version Oct.31,2013 Page 3 of 6 11. How was the off-site impervious area listed above determined?Provide documentation. Projects in Union County: Contact DEMLR Central Office staff to check if the project is located within a Threatened& Endangered Species watershed that may be subject to more stringent stormwater requirements as per 1 SA NCAC 02B.0600. V. SUPPLEMENT AND O&M FORMS The applicable state stormwater management permit supplement and operation and maintenance(06'rm)forms must be submitted for each BMP specified for this project. The latest versions of the forms can be downloaded from http://portal.ncdenr.org/web/wq/ws/su/bmp-manual. VI. SUBMITTAL REQUIREMENTS Only complete application packages will be accepted and reviewed by the Division of Energy,Mineral and Land Resources(DEMLR). A complete package includes all of the items listed below. A detailed application instruction sheet and BMP checklists are available from http://portal.ncdenr.org/web/wg/ws/su/statesw/forms dots. The complete application package should be submitted to the appropriate DEMLR Office. (The appropriate office may be found by locating project on the interactive online map ath!Ltp://portal.ncdenr.org/web/wg/ws/su/maps.) Please indicate that the following required information have been provided by initialing in the space provided for each item.All original documents MUST be signed and initialed in blue ink. Download the latest versions for each submitted application package from http://portal.ncdenr.org/web/wg/ws/su/statesw/forms does. Igitials 1. Original and one copy of the Stormwater Management Permit Application Form. CAW 2. Original and one copy of the signed and notarized Deed Restrictions&Protective Covenants Form. (if required as per Part VII below) 3. Original of the applicable Supplement Form(s)(sealed,signed and dated)and O&M agreement(s)for each BMP. 4. Permit application processing fee of$505 payable to NCDENR. (For an Express review,refer to http://www.envhely.org/12ages/onestol2exl2ress.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/managementfor M 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(one copy). 8. Two sets of plans folded to 8.5"x 14" (sealed,signed,&dated),including: a. Development/Project name. b. Engineer and firm. c. Location map with named streets and NCSR numbers. d. Legend. e. North arrow. f. Scale. g. Revision number and dates. h. Identify all surface waters on the plans by delineating the normal pool elevation of impounded structures,the banks of streams and rivers,the MHW or NHW line of tidal waters,and any coastal wetlands landward of the MHW or NHW lines. • Delineate the vegetated buffer landward from the normal pool elevation of impounded structures,the banks of streams or rivers,and the MHW(or NHW)of tidal waters. i. Dimensioned property/project boundary with bearings&distances. J. Site Layout with all BUA identified and dimensioned. k. Existing contours,proposed contours,spot elevations,fi fished floor elevations. 1. Details of roads,drainage features,collection systems,and stormwater control measures. m.Wetlands delineated,or a note on the plans that none exist. (Must be delineated by a qualified person. Provide documentation of qualifications and identify the person who made the determination on the plans. n. Existing drainage(including off-site),drainage easements,pipe sizes,runoff calculations. o. Drainage areas delineated(included in the main set of plans,not as a separate document). Fonn SWU-101 Version Oct. 31,2013 Page 4 of 6 9. Copy of any applicable soils report with the associated SHWT elevations(Please identify elevations in addition to depths)as well as a map of the boring locations with the existing elevations and boring logs.Include an 8.5"x11"copy of the NRCS County Soils map with the project area clearly delineated. For projects with infiltration BMPs,the report should also include the soil type,expected infiltration rate,and the method of determining the infiltration rate. (Infiltration Devices submitted to WiRQ Schedule a site visit for DEMLR to verify the SHWT prior to submittal,(910)796-7378.) 10. A copy of the most current property deed.Deed book: 5000 Page No: -711 _ 11 For corporations and limited liability corporations 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 15A 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. htW://www.secret state.nc.us/CorRorations/CSearch a�gx 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://uortalmcdennorg/web/lr/state- stormwater-forms docs.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 formes 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 .-ithout concurrence from the NC DEMLR,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:Branch Smith Consulting Firm:Paramounte Engineering,Inc. Mailing Address:122 Cinema Drive City:Wilmington State•NC Zip:28337 Phone: (910 ) 791-6707 Fax: ( ) Email:bsmith ftaramounte-eng.com IX. PROPERTY OWNER AUTHORIZATION(if Contact Information,item 2 has been filled out,complete this section) I,(print or type name of person listed in Contact Information,item 2a) .certify that I own the property identified in this permit application,and thus give permission to(print or type name of person listed in Contact Information,item 1a) with(print or type name of organization listed in Contact Information,item 1a) to develop the project as currently proposed. A copy of the lease agreement or pending property sales contract has been provided with the submittal,which indicates the party responsible for the operation and maintenance of the stormwater system. Farm SWU-101 Version Oct.31,2013 Page 5 of 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 DEMLR Stormwater permit reverts back to me,the property owner.As the property owner,it is my responsibility to notify DEMLR 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 asse sment of civ•1 penalties of up to$25,000 per day,pursuant to NCG�SS 143-215.6. Signature Date: U -c 6 11 pp I, 'Pl��0.r\�c y l�lAlhn ,a Notary Public forthe State of County of C�f`i nt 2 , C1 ,do hheieby certify that Q-yw t 5 \V Vf\pr) personally appeared before me this 1 1 day of and acknowledge the due 'on of the application for a stormwater permit. Witness my hand and official seal, V EPly SEAL C </(,' �C) My commission expires &-k_C�)� ,OZ/NTY NG X. APPLICANT'S CERTIFICATION ��,,-- -- ..__•• '' I,(print or type name of person listed in Contact Information,item Ia) GNk►S 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 stormwat r rules under A NCAC 2H.1000 and any other applicable state stormwater requirements. Signature: Date: O 1116 G O I, ( a Notary Public for the State of ��- ,County of POE f)--s c. ,do hereby certify that CA(11'i S �1 Q ►'\Dfl personally appeared before.me this \-� day of Ul 6 and acknowled a the ue execution of the application for a stormwater permit. Witness my hand and official seal, STEpy��i��, SEAL clic v Now �'_ =ZE G 7 G= Oy; My commission expires -��d� Farm SWU-101 Version Oct.31,2013 Page 6 of 6 Permit No. (to be provided by DWO) Red triangles at the upper right hand comer indicate design comments Please complete the yellow shaded items. NCDENR a STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM WET DETENTION BASIN SUPPLEMENT This form must be filled out printed and submitted. The Required Items Checklist(Part 11/)must be printed,filled out and submitted along with all of the required information. !. PROJECT INFORMATION Project name Crosswinds Church Contact person Branch Smith Phone number 910-791-6707 Date 9/20/2016 Drainage area number DA 3 il. DESIGN INFORMATION Site Characteristics Drainage area 155,509 fe Impervious area,post-development 90,100 fe %impervious 57.94% Design rainfall depth 1.5 in Storage Volume: Non-SA Waters Minimum volume required 11,108 fe Volume provided 11,325 fe OK,volume provided is equal to or in excess of volume required. Storage Volume: SA Waters 1.5"runoff volume NA ft3 Pre-development 1-yr,24-hr runoff 5 ft3 Post-development 1-yr,24-hr runoff fe Minimum volume required fe Volume provided Peak Flow Calculations Is the prelpost control of the 1 yr 24hr storm peak flow required? Y (Y or N) 1-yr,24-hr rainfall depth 3.7 in Rational C,pre-development (unitless) Rational C,post-development (unitless) Rainfall intensity:I-yr,24-hr storm in/hr Pre-development 1-yr,24-hr peak flow 5.50 ft3/sec Post-development 1-yr,24-hr peak flow 8.00 ft3/sec Pre/Post 1-yr,24-hr peak flow control 2.50 ft3/sec Elevations Temporary pool elevation 39.30 fmsl Permanent pool elevation 38.50 fmsl SHWT elevation(approx.at the perm.pool elevation) 38.00 fmsl Top of 10it vegetated shelf elevation 38.50 fmsl Bottom of 10ft vegetated shelf elevation 37.50 fmsl `1!g Sediment cleanout,top elevation(bottom of pond) 34.00 fmsl E C E IVE Sedimem:cleanout,bottom elevation 33.00 fmsl Sediment storage provided 1.00 It SEP 2 12016 Is there additional volume stored above the state-required temp.pool? Y (Y or N) Elevation of the top of the additional volume 39.3 fmsl OK BY: Surface Areas Area,temporary pool 14,872 fly Area REQUIRED,permanent pool 9,331 fe Form SW401-Wet Detention Basin-Rev.9-4/16/12 Parts I.&II.Design Summary,Page 1 of 2 Permit No. (to be provided by D WQ) L DESIGN INFORMATION SAIDA-ratio : 6.00(unitiess) Area PROVIDED,permanent pool,Ap."Wl 1205 ftz OK Area,bottom of 1 Oft vegetated shelf,Abo_A., 9,740 ft2 Area,sediment cleanout,top elevation(bottom of pond),AbLp.rd 4,126 ftz Volumes Volume,temporary pool 11,325 ft3 OK Volume,permanent pool,Vp..,.,i 34,956 ft3 Volume,forebay(sum of forebays if more than one forebay) 6,951 ft3 Forebay%of permanent pool volume 19.9%% OK SAIDA Table Data Design TSS removal 90% Coastal SAIDA Table Used? Y (Y or N) Mountain/Piedmont SAIDA Table Used? (Y or N) SAIDA ratio 6.00 (unitless) Average depth(used in SAIDA table): Calculation option 1 used?(See Figure 10-2b) N (Y or N) Volume,permanent pool,VP,,,-Pool 34,956 ft' Area provided,permanent pool,Aperm�ou� 12,685 ftz Average depth calculated ft Need 3 ft min. Average depth used in SAIDA,d.,(Round to nearest 0.5ft) ft Calculation option 2 used?(See Figure 10-2b) Y (Y or N) Area provided,permanent pool,Ap m pool 12,685 ft' Area,bottom of 1Oft vegetated shelf,Ab,, Sher 9,740 ftz Area,sediment cleanout,top elevation(bottom of pond),Abut-pand 4,126 ftz "Depth"(distance b/w bottom of 1Oft shelf and top of sediment) 3.50 ft Average depth calculated 3.40 ft OK Average depth used in SAIDA,d,,,,(Round to down to nearest 0.5ft) 3.5 ft OK Drawdown Calculations Drawdown through orifice? N (Y or N) Diameter of orifice(if circular) in Area of orifice(if-non-circular) in Coefficient of discharge(CD) (unitless) Driving head(H.) ft Drawdown through weir? Y (Y or N)Weir type V-notch (unitless) EC C G'VE Coefficient of discharge(C j 257 (unitiess) Length of weir(L) 1 ft SEP 2 20' Driving head(H) 0.27 ft Pre-development 1-yr,24-hr peak flow 5 50 ft3/sec BY: Post-development 1-yr,24-hr peak flow 3 00 ft3/sec Storage volume discharge rate(through discharge orifice or weir) 0 03 ft3/sec Storage volume drawdown time 3 74 days OK,draws down in 2-5 days. Additional Information Vegetated side slopes 3 :1 OK Vegetated shelf slope 6 :1 Insufficient off clnno L; Vegetated shelf width 6.0 ft I:1sufiicielit shelFleR�tR, Length of flowpath to width ratio 3:1 OK Length to width ratio 2.0:1 OK Trash rack for overflow&orifice? Y (Y or N) OK Freeboard provided 1.0 ft OK Vegetated filter provided? N (Y or N) OK Recorded drainage easement provided? N (Y or N) Insufficient. Recorded drainage easement required. Capures all runoff at ultimate build-out? Y (Y or N) OK Drain mechanism for maintenance or emergencies Is: Pump Out Form SW401-Wet Detention Basin-Rev.9-4/18/12 Parts I.&II.Design Summary,Page 2 of 2