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HomeMy WebLinkAboutSW8110206_CURRENT PERMIT_20210901STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO SW8 11020-p DOC TYPE CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE 202t Oolo 1 YYYYMMDD t ROY COOPER Governor ELIZABETH S BISER NORTH CAROUNA Fj.vb" wnWt Quattty September 1, 2021 Black's Tire Service, Inc Arm Ricky Benton 11, Vice President P O Box 919 Whiteville, NC 28472 Subject: Permit Renewal State Stormwater Management Permit No SW8 110206 Black's Tine Shallotte Brunswick County Dear Mr Benton Effective August 1, 2013 the State Stormwater program has been transferred from the Division of Water Quality (DWQ) to the Division of Energy, Mineral and Land Resources (DEMLR) All previous references to DWQ will remain in older stormwater permits issued prior to August 1, 2013 until they are modified Please note that this permit will now reference DEMLR as the Division responsible for issuance of the permit The Wilmington Regional Office received a complete 8 year Stormwater Management Permit Renewal Application for the subject project on August 16, 2021 The Division is hereby notifying you that permit SW8 110206 has been renewed on September 1, 2021, and shall be effective until February 28, 2029 For your records, please find enclosed a renewed, updated, and re -issued pernut and a copy of the renewal application Please keep this permit on file at" times Please note that the renewed, updated, and re -issued permit does not impose new or different terms, it merely restates some of the previous terms to provide you with a better understanding of your obligations under the permit. The renewal and reissuance of this stormwater permit does not imply that the site is currently in compliance with the terms and conditions of thus state stormwater permit The plans originally approved on February 28, 2011 will remain in full force and effect in accordance with the regulations set forth in Title 15A NCAC 2H 1000 This permit is subject to the conditions and limitations as specified therein Please pay special attention to the conditions listed in this permit regarding the Operation and Maintenance of the BMP(s), recordation of deed restnctions, procedures for changes of ownership, transfemng the permit, and renewing the permit Failure to establish an adequate system for operation and maintenance of the stormwater management system, to record deed restrictions, to transfer the permit, or to renew the permit, will result in future compliance problems If any pans, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing by filing a written petition with the Office of Administrative Hearings (OAH) The written petition must conform to Chapter 150B of the North Carolina General Statutes, and must be filed with the OAH within thirty (30) days of receipt of this permit You should contact the OAH with all questions regarding the filing fee (if a filing fee is required) and/or the details of the filing process at 6714 Mail Service Center, Raleigh, NC 27699-6714, or via telephone at 919-431-3000, or visit their websrte at www NCOAH corn Unless such demands are made this permit shall be final and binding If you have any questions, need additional copies of the permit or approved plans, please contact Ashley Smith in the Wilmington Regional Office, at (910) 796-7215 or ashleym smith@ncdenr gov Sincerely, 5�; Brian Wrenn, Director Division of Energy, Mineral and Land Resources D North Carolina Department of Environmental Quality I Devi n of Energy mneral and Land Resources Wilmington Regionai Office 1127 Cardmal Drive Extenvon I Wihnmgton North Carolina 28405 r.rnn rwaaa o�sr+uw.r.ma 9107%7215 ai Enclosures DES/ams cc State Stormwater Permit No SW8 110206 Page 2 of 2 Attachment C — Permitting History Renewal Application Documents \\\Stormwater\Permits & Pmjects\2011\I 10206 HD\2021 09 permit 110206 Wilmington Regional Office Stotmwater File D Q�� mm North Carolina ion Department of27 Cardinal D l Quality on I Wilmington of Energy MineNorth al and Land Resou ces WRmingtan Regional Office R7 Cardinal Drive Extension I Wi6nmgton North Carolina 28405 9107967215 State Stormwater Management Systems Permit No SW8 110206 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF ENERGY, MINERAL AND LAND RESOURCES STATE STORMWATER MANAGEMENT PERMIT HIGH DENSITY COMMERCIAL 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 Black's Tire Service, Inc Black's Tire 2650 Ocean Highway West, Shallotte, Brunswick County FOR THE construction, operation and maintenance of one wet detention pond in compliance with the provisions of 15A NCAC 2H 1000 and Session Law 2008-211 (hereafter collectively 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 (the "Division" or "DEMLR") and considered an enforceable part of this permit This permit shall be effective from the date of issuance until February 28, 2029, 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 This stormwater system has been approved for the management of stormwater runoff as described in Section 17 on page 2 of this permit The stormwater control has been designed to handle the runoff from 35,362 square feet of impervious area There are 17,753 square feet of impervious area developed prior to 1988 This area is not required to be treated A 50' wide vegetative buffer must be provided adjacent impounded structures streams, rivers and tidal waters The tract will be limited to the amount of built -upon area indicated on page 2 of this permit, and per approved plans The built -upon area for the future development is limited to 0 square feet Page 1 of 5 State Stormwater Management Systems Permit No SW8 110206 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 The runoff from all built -upon area within the permitted drainage area(s) of this project must be directed into the permitted stormwater control system The following design criteria have been provided in the wet detention pond and must be maintained at design condition a Drainage Area, acres 1 28 Onsite, ft2 55,868 Offsite, ft2 0 b Total Impervious Surfaces, ft2 35,362 Onsite, ft2 35,362 Offsite, ft2 0 c Design Storm, inches 1 5 d Average Pond Design Depth, feet 40 e TSS removal efficiency 90% f Permanent Pool Elevation, FMSL 355 g Permanent Pool Surface Area, ft2 3,537 h Permitted Storage Volume, ft3 4,823 1 Temporary Storage Elevation, FMSL 365 J Pre-dev 1 yr-24 hr discharge rate, cfs 1 35 k Controlling Orifice 1 03"0 pipe I Orifice flowrate, cfs 014 m Permitted Forebay Volume, ft3 1,457 n Fountain Horsepower N/A o Receiving Stream/River Basin Sharron Creek / Lumber p Stream Index Number 15-25-2-9-(2) q Classification of Water Body "SC, HQW' II SCHEDULE OF COMPLIANCE 1 The stormwater management system shall be constructed in its entirety, vegetated and operational for its intended use prior to the construction of any built -upon surface 2 During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately 3 The permittee shall at all time provide the operation and maintenance necessary to assure the permitted stormwater system functions at the design condition The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited to a Semiannual scheduled inspections (every 6 months) b Sediment removal c Mowing and re -vegetation of slopes and the 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 outlet structure, orifice device, flow spreader, catch basins and piping a Access to the outlet structure must be available at all times Page 2 of 5 State Stormwater Management Systems Permit No SW8 110206 4 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 5 Decorative spray fountains will not be allowed in the stormwater treatment system because the permanent pool volume is less than 30,000 cubic feet 6 The facilities shall be constructed, operated and maintained in accordance with the provisions of this permit, the approved plans and specifications, and the supporting documents attached to this permit and on file with the Division 7 Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, a certification must be received from an appropriate designer for the system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation Any deviations from the approved plans and specifications must be noted on the Certification A modification may be required for those deviations 8 If the stormwater system was used as an Erosion Control device, it must be restored to design condition prior to operation as a stormwater treatment device, and prior to occupancy of the facility 9 Access to the stormwater facilities for inspection and maintenance shall be maintained via appropriate recorded easements at all times 10 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 11 No person or entity, including the permittee, shall alter any component shown in the approved plans and specifications Prior to the construction of any modification to the approved plans, the permittee shall submit to the Director, and shall have received approval for modified plans, specifications, and calculations including, but not limited to, those listed below For changes to the project or SCM that impact the certifications, a new or updated certi ication(s), as applicable, will be required and a copy must be submitted to the appropriate DEQ regional office upon completion of the modification a Any modification to the approved plans and specifications, regardless of size including the SCM(s), BUA, details, etc b Redesign or addition to the approved amount of BUA or to the drainage area c Further development, subdivision, acquisition, lease or sale of any, all or part of the protect and/or property area as reported in the approved plans and specifications d Altering, modifying, removing, relocating, redirecting, regrading, or resizing of any component of the approved SCM(s), the stormwater collection system and/or vegetative conveyance shown on the approved plan e The construction of any allocated future BUA f The construction of any permeable pavement, #57 stone area, public trails, or landscaping material to be considered a permeable surface that were not included in the approved plans and specifications g Other modifications as determined by the Director 12 Prior to transfer of the permit a file review and site inspection will be conducted by Division personnel to ensure the permit conditions have been met and that the project and the on -site stormwater system complies with the permit conditions Any items not in compliance must be repaired, replaced restored, or resolved prior to the transfer Records of maintenance activities performed to date may be requested Page 3 of 5 State Stormwater Management Systems Permit No SW8 110206 III GENERAL CONDITIONS 1 Any individual or entity found to be in noncompliance with the provisions of a stormwater management permit or the requirements of 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 and obtaining any other permits or approvals that are required for this development to take place, as required by any statutes, rules, regulations, or ordinances, which may be imposed by any other Local, State or Federal government agency having jurisdiction Any activities undertaken at this site that cause a water quality violation or undertaken prior to receipt of the necessary permits or approvals to do so are considered violations of NCGS 143-215 1, and subject to enforcement procedures pursuant to NCGS 143-215 6 If the facilities fail to perform satisfactorily, the permittee shall take immediate corrective actions This includes actions required by this Division and the stormwater rules such as the construction of additional or replacement on -site stormwater systems These additional or replacement measures shall receive a permit from the Division prior to construction 4 Permit Transfer 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 "Permit Transfer Application Form" (available on the Division website) accompanied by the required fee and supporting documentation as listed on the form, to the Division at least 60 days prior to any one or more of the following events a 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 and protective covenants, b Dissolution of the partnership, corporate, or LLC entity, subject to NCGS 55-14-05 or NCGS 57D-6-07 and 08, c Bankruptcy, d Foreclosure, subject to the requirements of Session Law 2013-121, 5 Current Permittee Name or Address Changes The permittee shall submit a completed "Permit Information Update Application Form" (available on the Division website) to the Division within 30 days to making any one or more of the following changes a A name change of the current permittee, b A name change of the project, c A mailing address change of the permittee, 6 The permittee is responsible for compliance with all terms and conditions of this permit until 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 permit 7 The permittee grants Division Staff permission to enter the property during normal business hours to inspect all components of the permitted project 8 The permit issued shall continue in force and effect until the permittee files a request with the Division for a permit modification, transfer, renewal, or rescission, however, these actions do not stay any permit conditions 9 Approved plans, application documents, supplements, calculations, operation and maintenance agreement, and specifications for this project are incorporated by reference and are enforceable parts of the permit A copy of this permit, application, supplements, operation and maintenance agreement, and approved plans and specifications shall be maintained on file by the permittee 10 Unless specified elsewhere, permanent seeding requirements for the on -site stormwater system must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual Page 4 of 5 State Stormwater Management Systems Permit No SW8 110206 11 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 for cause as allowed by the laws, rules, and regulations contained in Title 15A NCAC 2H 1000 and NCGS 143-215 1 et al 12 A permit renewal request must be submitted 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 as outlined in Title 15A NCAC 02H 1045(3) Permit renewed, updated and reissued this the 1st day of September 2021 NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION lJti1.�VM�o �wJCX Brian Wrenn, Lirector Division of Energy, Mineral and Land Resources By Authority of the Environmental Management Commission Page 5 of 5 Attachment C - Permitting History Blacks Tire- Shallotte Permit No SW8 110206 Approval Date Permit Action RIMS Version Description of the Changes 2/28/2011 Original Approval 1 0 9/l/2021 Renewal 20 6UA PennitNumber 1\0010(6 (to be provided by DWQ) Drainage Area Number ',1 Wet Detention Basin Operation and Maintenance Agreement I will keep a maintenance record on this BMP This maintenance record will be kept in a log in a known set location Any deficient BMP elements noted in the inspection will be corrected, repaired or replaced immediately These deficiencies can affect the integrity of structures, safety of the public, and the removal efficiency of the BMP The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the vegetated filter if one is provided This system (check one) ❑ does ® does not incorporate a vegetated filter at the outlet This system (check one) ❑ does ® does not incorporate pretreatment other than a forebay 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 mmimized 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 in within 24 hours after every storm event greater than 10 inches (or 15 inch7knowj� Coastal County) Records of operation and maintenance should be kept inlocation and must be available upon request n 8 2011 Inspection activities shall be performed as follows Any problems that are 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 wet Areas of bare soil and/or Regrade the soil if necessary to detention basin erosive gullies have formed remove the gully, and then plant a ground cover and water until it is established Provide lime and a one-time fertilizer application Vegetation is too short or too Maintain vegetation at a height of long approximately six inches Form SW401-Wet Detention Basin O&M -Rev 4 Page 1 of 4 Permit Number (to be provided by DWQ) Drainage Area Number BMP element Potential problem How I will remediate the problem The inlet device pipe or The pipe is clogged Unclog the pipe Dispose of the swale sediment off -site The pipe is cracked or Replace the pipe otherwise damaged Erosion is occurring in the Regrade the swale if necessary to swale smooth it over and provide erosion control devices such as reinforced turf matting or riprap to avoid future problems with erosion The forebay Sediment has accumulated to Search for the source of the a depth greater than the sediment and remedy the problem if original design depth for possible Remove the sediment and sediment storage dispose of it in a location where it will not cause impacts to streams or the BMP Erosion has occurred Provide additional erosion protection such as reinforced turf matting or riprap if needed to prevent future erosion problems Weeds are present Remove the weeds, preferably by hand If peshcrde is used, wipe it on the plants rather than spraying The vegetated shelf Best professional practices Prune according to best professional show that pruning is needed practices to maintain optimal plant health Plants are dead, diseased or Determine the source of the dying problem soils, hydrology, disease, etc Remedy the problem and replace plants Provide a one-time fertilizer application to establish the ground cover if a soil test indicates it is necessary Weeds are present Remove the weeds, preferably by hand If pesticide is used, wipe it on the plants rather than spraying The main treatment area Sediment has accumulated to Search for the source of the a depth greater than the sediment and remedy the problem if original design sediment possible Remove the sediment and storage depth dispose of it in a location where it will not cause impacts to streams or the BMP Algal growth covers over Consult a professional to remove 50% of the area and control the algal growth Cattails, phragmites or other Remove the plants by wiping them invasive plants cover 50% of with pesticide (do not spray) the basin surface a{ECEIV ED AN 2 8 201 Form SW40I-Wet Detention Basin O&M -Rev 4 r Permit Number (to be provided by DWQ) Drainage Area Number BMP element Potential problem How I will remediate the problem The embankment Shrubs have started to grow Remove shrubs immediately on the embankment Evidence of muskrat or Use traps to remove muskrats and beaver activity is present consult a professional to remove beavers A tree has started to grow on Consult a dam safety specialist to the embankment remove the tree 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 Division of damage have occurred at the Water Quality Regional Office, or outlet the 401 Oversight Unit at 919-733- 1786 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 When the permanent pool depth reads 28 50 feet in the main pond, the sediment shall be removed When the permanent pool depth reads 28 50 feet in the forebay, the sediment shall be removed Sediment Removal 2850 --------------- FOREBAV BASIN DIAGRAM ill in the blanks) -ft Min Sediment Storage Permanent Pool Elevation 35 50 Pool Sediment Removal Elevation 2850 Volume ------------ ----------- ---- Bottom Elevation 27 50 1 1-ft JAN 2 8 2011 Storage Form SW401-Wet Detention Basin O&M -Rev 4 Page 3 of 4 Permit Number (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 Black's Tire BMP drainage area number Print name Ricky James Benton Title Owner Address PO Box 919 Whiteville, NC 28472 fJRiTi1 SignE Date Note The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president 1, D?6omo N k Mt&py-soy , a Notary Public for the State of NOA' N 64-01-y10. , County of C-o`ttrnbu s , do hereby certify that w personally appeared before me this_ day of JOMue, ap I t and acknowledge the due execution of the forgoing wet detention basin maintenance requirements Witness my hand and official seal, • BAH K 440"o"= q, y , o e^ = o T/ y 90 �= coi, ° SEAL JAN 2 8 2011 My commission expiresa� (a` p o o �< KA(-f V�&LA' Form S W40I-Wet Detention Basin O&M -Rev 4 Page 4 of 4 UCMLK Ubt UNL7 -� Date Re eived Fee Paid Permit Number 35 = Sul oab(o NC DEQ Division of Energy, Mineral and Land Resources STATE STORMWATER PERMIT RENEWAL APPLICATION FORM In accordance with 15A NCAC 2H 1045(3), the current permit holder shall renew their high density permit 180 days pnor to its expiration Renewed permits are valid for a period of 8 years per Session Law 2011-398 (SB 781) Section 60 (c) This application form is for permit renewals only A PROJECT INFORMATION I 1 State Stormwater Permit Number SW8 W0206 2 Project name 3 Project street address 2650 Ocean Hwy W City ; 28470 County Brunswick ZIP 4 What, if any changes have been made to the project as permitted? no changes If the project has changed from the original approved plans please complete SWU-101 for a Major Modification or Minor Modification Application form available at https //deg nc gov/abouUdivsions/energv- minera I-land-resources/ene rgv-mineral-land-rules/stormwater-grog ram/post-construction B PERMITTEE INFORMATION If changes to the permittee or project name have been made please complete either the Permit Update form or the Permit Transfer form available at https //deg nc gov/abouUdwisions/energy-mineral-land- resources/energy-mineral-land-rules/stormwater-program/post-construction State Stormwater Permits do not automatically transfer with the sale of the property 1 Current Permit Holder's Company Name/Organization Black's Tire Service Inc 2 Signing Officials Name Ricky Benton II 3 Signing Officials Title Vice President 4 Mailing Address PO Box 919 City Whiteville State NC ZIP 28472 5 Street Address 30 Bitmore Rd City Whiteville State NC ZIP 28472 6 Phone (910) 642-2157 Email rickvCGDblackstire com AUG 16 2021 ;I BY— Stormwater Permit Renewal Form Page 1 of 3 May 11 2018 C SUBMITTAL REQUIREMENTS Submit the application package to the appropriate DEMLR Regional Office (Coastal SA Waters) or DEMLR Central Office (Urbanizing Areas Ph 2 USMP Non -Coastal HQW/ORW Only applications packages that include all required items listed below will be accepted and reviewed Initial each item below to indicate that the required information is provided in the application package rbrb 1 A permit application processing fee of $505 00 payable to NCDEQ One original signed hard copy and one electronic copy of this completed form The signing official named on this application to represent the current permittee must meet one of the following Corporation — a principle executive officer of at least the level of vice-president, b Limited Liability Company (LLC) — a manager or company official as those terms are defined in G S 57D North Carolina Limited Liability Company Act ' c Public Entity — a principal executive officer ranking official or other duly authorized employee d Partnership or limited partnership — the general partner e Sole proprietor, or f Letter of authorization signed by one of the signatories noted in a — e above authorizing the signature of another entity 3 One hard copy and one electronic copy of recorded documents required by the original permit that have not yet been received by DEMLR, including deed restrictions protective covenants, condominium/planned community declaration and easements If the project has been built, include documentation that the maximum BUA per lot or maximum total BUA has not been exceeded If the project has not been built, include a signed agreement that the final recorded deed restrictions and protective covenants will be submitted at a later date 4 O&r Agreements Please select one j� I have a copy of the current recorded O&M Agreement for all SCMs and I will continue to keep this on file with the permit, or ❑ I do not have a copy of the current recorded O&M Agreement for all SCMs and am requesting a copy be sent to me I agree to keep this on file with the permit 5 D�esi9ner Certifications Please select one [� A copy of the certification(s) confirming that the project was built in accordance with the approved plans have been previously provided to the Division, or ❑ A copy of the certification(s) confirming that the project was built in accordance with the approved plans are enclosed, or / El The project has not yet been built ✓ 6 [IF APPLICABLE] If the project has been built one original hard copy and one electronic copy of a signed, sealed, and dated letter from a licensed professional stating that the SCMs have been / inspected, and that they have been built and maintained in accordance with the permit ✓ 7 [IF APPLICABLE] When the permittee is a corporation or a limited liability corporation (LLC) Provide one hard copy and one electronic copy of documentation from the NC Secretary of State or other official documentation, which supports the titles and positions held by the persons listed in Section C 2 per 15A NCAC 2H 1043(3)(b) AUG 16 2021 By_ Stormwater Permit Renewal Application Form Page 2 of 3 May 11 2018 n D PERMITTEE'S CERTIFICATION I, i 1 C V 13EA;6Y) , the person legally responsible for the permit certify that I have a copy of thd Permit and O&M Agreement on site (or I will obtain a copy and it will be kept on site) that I am responsible for the performance of the maintenance procedures, and the site has been and will be maintained according to the O&M Agreement and approved plans I agree to notify DEMLR of any problems with the SCMs or built -upon areVaplet it the proper for to modify or transfer the permit prior to any changes to the protect. SCMs, oAll i ormah ed on this permit renewal application is to the best of my knowledge corre Signature Date �d 2,1 NOTARIZATION n 1 / I, xeso_ Q 6J r'rl..3e� a Notary Public for the State of Nor i CLrolia..-, County of ("bI LLry"_bUS , do hereby certify forgoing instrument Witness my hand and official seal My commission expires personally appeared before me 20 21 and acknowledge the due AUG 16 Z029 q ;J BY� Stormwater Permit Renewal Application Form Page 3 of 3 May 11 2018 Permit No',��(( (to be pmveed by DWQ) T ap W A TF9 02 OG r NCDENR � 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 (Pad llq must be printed filled out and submitted along with all of the required information llqPRVJECTiINFORMATIONNNEMNUZRMMRWM Prolect name Blacks Tire Contact person Chris Russell PE Phone number 910-232-0692 Date 11/40010 Drainage area number 2 117DESIGNI IN FORMATION Site Characteristics Drainage area Impervious area post -development % impervious Design rainfall depth Storage Volume Non SA Waters Minimum volume required Volume provided Storage Volume SAWaters 15 runoff volume Pre-developmentI yr 24 hr runoff Post -development 1 yr 24 hr runoff Minimum volume required Volume provided Peak Flow Calculations Is the prelpost control of the lyr 24hr storm peak flow required? 1 yr 24 hr rainfall depth Rational C pre -development Rational C post -development Rainfall intensity 1 yr 24 hr storm Pre -development 1 yr 24 hr peak flow Post -development 1 yr 24 hr peak flow Pre/Post 1 yr 24 hr peak Flow control Elevations Temporary pool elevation Permanent pool elevation SHWT elevation (approx at the perm pool elevation) Tap of 10ft vegetated shelf elevation Bottom of 1Oft vegetated shelf elevation Sediment cleanout top elevation (bottom of pond) Sediment cleanout bottom elevation Sediment storage provided Is there additional volume stored above the state required temp pool? Elevation of the top of the additional volume 55 868 112 35 362 ft2 6330 % 15 in 4 327 ft3 4 823 it' N (Y or N) 36 in OK OK volume provided is equal to or in excess of volume required 019 (unitless) 064 (unitless) 015 mlhr OK 135 ft3lsec 455 ft3lsec 320 ft3lsec 3650 fmsl 3550 fmsl 35 00 find 3600 fmsl 3500 fmsl 2850 find 2750 fmsl 100 If N (Y or N) fmsl Form SW401 Wet Detention Basin Rev e-9/17/09 Parts 1 a 11 Design Summary Page 1 of 2 Permit No (to be Provided by DWD) II DESIGN INFORMATION Surface Areas Area temporary pool 5 581 ft' Area REQUIRED permanent pool 3 090 ft' SAIDA ratio 553 (uno ess) Area PROVIDED permanent pool Ap,,,,,y" 3537 ft' OK Area bottom of 10ft vegetated shelf A.y„ , 2153 ft' Area sediment cleanout top elevation (bottom of pond) A,,, � d 128 ft' Volumes Volume temporary pool 4 823 ft3 OK Volume permanent pool Vim,,. 7 524 ft' Volume forebay (sum of forebays if more than one forebay) 1457 ft3 Forebay %of permanent pool volume 19 4% % OK SAIDA Table Data Design TSS removal 90 % Coastal SAIDA Table Used? Y (Y or N) Mountain/Piedmont SAIDA Table Used? N (Y or N) SAIDA ratio 553 limitless) Average depth (used in SAIDA table) Calculation option 1 used? (See Figure 10 2b) N (Y or N) Volume permanent pool V. 7524 ft' Area provided permanent pool Ar,,,, pi 3 537 ft Average depth calculated 380 ft OK Average depth used in SAIDA d. (Round to nearest 0 511) 40 ft OK Calculation option 2 used? (See Figure 10 2b) Y (Y or N) Area provided permanent pool A._. 3 537 ft' Area bottom of 1 Oft vegetated shelf A.,,,,,, 2153 ft Area sediment cleanout top elevation (bottom of pond) A ,.d 128 ft' Depth (distance b/w bottom of 10ft shelf and top of sediment) 650 ft Average depth calculated 380 ft OK Average depth used in SAIDA dr (Round to nearest 0 511) 40 ft OK Drawdown Calculations Drawdown through onfice? Y (Y or N) Diameter of onfice (if circular) 103 in Area of onfice (if noo-circular) in Coefficient of discharge (Co) 060 (umtless) Driving head (Ho) 025 ft Drawdown through weirs N (Y or N) Weir type (uni8ess) Coefficient of discharge (C..) (unilless) Length of weir (L) ft Driving head (H) ft Pre -development 1 yr 24 hr peak flow 135 ft"/sec Post -development 1 yr 24 hr peak flow 455 113lsec Storage volume discharge rate (through discharge onfice or weir) 014 ft3lsec Storage volume drawdown time 424 days OK draws down in 2 5 days Additional Information Vegetated side slopes 3 1 OK Vegetated shelf sloe 10 1 OKP Vegetated shelf width 100 ft OftLength of Flowpath to width ratio 3 1 OK 7Y: Length to width ratio 20 1 OK Trash rack for overflow& onfice? Y (Y or N) OK 8 Freeboard provided 10 ft OK Vegetated filer provided? N (Y or N) OK Recorded drainage easement provided? Y (Y or N) OK Capures all runoff at ultimate buildout? Y (Y or N) OK Drain mechanism for maintenance or emergencies is MUD HOG PUMP Form SW401 Wet Detention Basin Rev 8 9117/09 Parts 1811 Design Summary Page 2 of 2 Permit No (to be provided by DWQ) III REQUIRED ITEMS CHECKLIST Please Indicate the page or plan sheet numbers where the supporting documentation can be found An incomplete submittal package will result in a request for additional information This will delay final review and approval of the project Initial in the space provided to Indicate the following design requirements have been met If the applicant has designated an agent, the agent may Initial below If a requirement has not been met, attach justification Page/ Plan Initials Sheet No SEE PLANS 1 Plans (1 50' or larger) of the entire site showing Design at ultimate build -out Off -site drainage (if applicable), Delineated drainage basins (include Rational C coefficient per basin), Basin dimensions Pretreatment system High flow bypass system, Maintenance access, Proposed drainage easement and public right of way (ROW), Overflow device and Boundaries of drainage easement _ NA 2 Partial plan (1" = 30' or larger) and details for the wet detention basin showing Outlet structure with trash rack or similar Maintenance access Permanent pool dimensions Forebay and main pond with hardened emergency spillway Basin cross section, Vegetation specification for planting shelf and Filter strip TAIL SHEET 3 Section view of the wet detention basin (1" = 20' or larger) showing Side slopes 31 or lower Pretreatment and treatment areas, and Inlet and outlet structures — NA 4 If the basin is used for sediment and erosion control during construction clean out of the basin is specified on the plans prior to use as a wet detention basin C CALCULATI( 5 A table of elevations areas, incremental volumes & accumulated volumes for overall pond and for forebay to verify volume provided EC2 6 A construction sequence that shows how the wet detention basin will be protected from sediment until the entire drainage area is stabilized CALCULATI( 7 The supporting calculations _ 9TH SUBMITT 8 A copy of the signed and notarized operation and maintenance (O&M) agreement H THE SUBMI 9 A copy of the deed restrictions (if required) 77 v� UDED WITH T 10 A soils report that is based upon an actual field investigation soil bonngs, and infiltration tests County soil maps are not an acceptable source of soils information Form SW401 Wet Detention Basin Rev 8 9117/09 RECEIVED JAN 2 8 2011 BY Part III Required Items Checklist Page 1 of 1 State Stormwater Management Systems Permit No SW8 110206 Black's Tire Stormwater Permit Brunswick County No SW8 110206 Designer's Certification I T Omsn,94 RkA&L , as a duly registered F—+J(i )6&-P� in the State of North Carolina, having been authorized to observe (periodically/ weekly/ full time) the construction of the protect, PBL09 K'S lt� 2C S�I�UI c� (Protect) for Pock4s eyer?-1-6/J (Protect Owner) hereby state that, to the best of my abilities, due care and diligence was used in the observation of the protect 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 Signature Registration Number D3S�54 Date /0//91b.1 ti �04, ;4Q 35054 = FN/o/�9�f GINti �VysT*AN1 Page 6 of 7 State Stormwater Management Systems Permit No SW8 110206 Certification Requirements ✓1 The drainage area to the system contains approximately the permitted acreage ✓ 2 The drainage area to the system contains no more than the permitted / amount of built -upon area ✓ 3 All the built -upon area associated with the protect is graded such that the runoff drains to the system 4 All roof drams are located such that the runoff is directed into the system ✓ 5 The outlet structure elevations are per the approved plan 6 The outlet structure is located per the approved plans Trash rack is provided on the outlet 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 V 11 The permitted amounts of surface area and/or volume have been provided ✓ 12 Required drawdown devices are correctly sized and located 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 ✓ 16 All components of the stormwater BMP are located in either recorded common areas, or recorded easements cc NCDENR-DWQ Regional Office New Hanover County Building Inspections Page 7 of 7