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HomeMy WebLinkAboutSW8120511_CURRENT PERMIT_20120613STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW V�J0571 DOC TYPE � CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE �2fz2a:gl"�7) YYYYMMDD NODE 9R North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Charles Wakild, P E Governor Director June 13, 2012 Mr Michael Kahn, Vice President Empire Distributors of North Carolina, Inc 13833 Carowinds Blvd Charlotte, NC 28273 Subject State Stormwater Management Permit No. SW8120511 Empire Distributors — Lot 8A High Density Commercial Wet Detention Pond Project New Hanover County Dear Mr Kahn Dee Freeman Secretary The Wilmington Regional Office received a complete, Stormwater Management Permit Application for Empire Distributors — Lot 8A on June 12, 2012 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 SW8120511 dated June 13, 2012, 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 June 13, 2020, 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, procedures forchanges of 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 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 919-431-3000, or visit their website at www NCOAH corn 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 Kelly Johnson, at (910) 796-7215 Sincerely, �or Charles Wtild, P E �,Direclor Division of Water Quality GDS/ kpj S IWQSIStormwaterlPermits & Projects120121120511 HD12012 06 permit 120511 cc Phil Norns, PE Inspector, New Hanover County Building inspections Beth E Wethenil, New Hanover County Engineering Division of Coastal Management Wilmington Regional Office Stormwater File Wilmington Regional Office 127 Cardinal Drive Extension, Wilmington, North Carolina 28405 One Phone 910 796 72151 FAX 910 350 20041 DENR Assistance 1-877-623-6748 NorthCarolina Internet www ncwaterquallty org Natura!!Y An Equal Opportunity 1 Affirmative Action Employer State Stormwater Management Systems Permit No SW8120511 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY 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 Empire Distnbutors of North Carolina, Inc Empire Distnbutors — Lot 8A 4809 Los Tortugas Dr, Castle Hayne, New Hanover 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 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 Water Quality and considered a part of this permit This permit shall be effective from the date of issuance until June 13, 2020, 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 18 of this permit The stormwater control has been designed to handle the runoff from 39,500 square feet of impervious area 3 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 The tract will be limited to the amount of built -upon area indicated in this permit, and per approved plans The built - upon area for the future development is limited to 597 square feet, which is included in the 39,500 total square feet impervious area permitted 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 of this project must be directed into the permitted stormwater control system Page 2 of 7 State Stormwater Management Systems Permit No SW8120511 7 The following design criteria have been provided in the wet detention pond and must be maintained at design condition a Drainage Area, acres Onsite, ft2 Offsite, ft2 b Total Impervious Surfaces, ft2 Onsite, ft2 Offsite, ft2 c Design Storm, inches d Average Pond Design Depth, feet e TSS removal efficiency f Permanent Pool Elevation, FMSL g Permanent Pool Surface Area, ft2 h Permitted Storage Volume, ft3 i Temporary Storage Elevation, FMSL i Pre-dev 1 yr-24 hr discharge rate, cfs k Controlling Onfice I Orifice flowrate, cis m Permitted Forebay Volume, ft3 n Fountain Horsepower o Receiving Stream/River Basin p Stream Index Number q Classification of Water Body II. SCHEDULE OF COMPLIANCE 151 65,773 0 39,500 39,500 0 15 30 90% 2465 7,660 5,119 2520 054 1 5"0 pipe 002 4,266 NIA UT NE Cape Fear River I Cape Fear 18-74-(47 5) "B, SW" 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 times, provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency The signed and approved Operation and Maintenance Agreement must be followed in its entirety and maintenance must occur at the scheduled intervals 4 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 Decorative spray fountains will not be allowed 6 The facilities shall be constructed as shown on the approved plans This permit shall become void unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data 7 Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, a certification must be received from an appropriate designer for the system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation Any deviations from the approved plans and specifications must be noted on the Certification A modification may be required for those deviations 8 If the stormwater system was used as an Erosion Control device, it must be restored to design condition prior to operation as a stormwater treatment device, and prior to occupancy of the facility 9 Access to the stormwater facilities for inspection and maintenance shall be maintained via appropriate recorded easements at all times Page 3 of 7 State Stormwater Management Systems Permit No SW8120511 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 11 Prior to the construction of any permitted future areas shown on the approved plans, the permittee shall submit final site layout and grading plans to the Division for approval 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 Approved plans 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 III GENERAL CONDITIONS This permit is not transferable to any person or entity except after notice to and approval by the Director At least 30 days prior to a change of ownership, or a name change of the permittee or of the project, or a mailing address change, the permittee must submit a completed and signed Name/Ownership Change Form to the Division of Water Quality, accompanied by the supporting documentation as listed on the form The approval of this request will be considered on its ments 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 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 Any individual or entity found to be in noncompliance with the provisions of this storrmwater management permit or the requirements of the Stormwater rules is subject to enforcement procedures as set forth in G S 143 Article 21 4 The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances, which may be imposed by other government agencies (local, state, and federal) having jurisdiction In the event that the facilities fad 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 The permittee grants DENR Staff permission to enter the property during normal business hours for the purpose of inspecting all components of the permitted stormwater management facility 7 The permit remains 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 Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual 9 The permittee shall submit a permit renewal request at least 180 days prior to the expiration date of this permit The renewal request must include the appropriate documentation and the processing fee Page 4 of 7 State Stormwater Management Systems Permit No SW8120511 Permit issued this the 1311 day of June 2012 NO TH CARO' A ENVIRONMENTAL MANAGEMENT COMMISSION or C arias kdd, P E ,Director Division of Water Quality By Authority of the Environmental Management Commission Page 5 of 7 State Stormwater Management Systems Permit No SW8120511 Empire Distributors — Lot 8A Stormwater Permit No SWB 120511 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 Signature Registration Number Date SEAL Page 6 of 7 State Stormwater Management Systems Permit No SW8 120511 Certification Requirements 1 The drainage area to the system contains approximately the permitted acreage 2 The drainage area to the system contains no more than the permitted amount of built -upon area 3 All the built -upon area associated with the project is graded such that the runoff drams to the system 4 All roof drains 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 7 Trash rack is provided on the outlet structure 8 All slopes are grassed with permanent vegetation 9 Vegetated slopes are no steeper than 31 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 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 Inspector, New Hanover County Building Inspections Page 7 of 7 11 t D W Q USE ONLY Date Received Fee Paid _Permit Number Apphcable Rules ❑ Coastal SW -1995 ❑ Coastal SW - 2008 ❑ Ph II - Post Construction (select all that apply) ❑ Non -Coastal SW- HQW/ORW Waters ❑ Universal Stormwater Management Plan ❑ Other WO Memt PIan State of North Carolina Al rl.2az3 Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM This farm may be photocopied far use as an anginal GENERAL INFORMATION 1 Project Name (subdivision, facihty, or establishment name -should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc) Em ire Distributors - Lot 8A 2 Location of Project (street address) 4809 Los Tortugas Dnve City Castle Haype County New Hanover Zap 28429 3 Directions to project (from nearest major intersection) Exit off -- 140 at Holly Shelter Road Travel east on Holly Shelter Road to Barbados Boulevard Site is on corner of Barbados Boulevard and Los Tortugas Drive 4 Latitude 340 20' 56" N Longitude 77' 52' 53" 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* 'pro:nde a designer's certificatzon 2 Specify the type of project (check one) ❑Low Density ®High Density ❑Drains to an Offsite Stormwater System ❑Other 3 If this apphcabon 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) ❑CAMA Major ®Sedimentation/Erosion Control 166 ac of Disturbed Area ❑NPDFS 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 Form SWU-101 Version 07Jun2010 ECEIVE MAY 2 4 2012 sv: Page 1 of 6 III CONTACT INFORMATION 1 a fruit Applicant / Signing Official's name and title (specifically the developer, property owner, lessee, designated government official, individual, etc who owns the project) Applicant/Organization 6inpire DistribUtors gWorth Carolina. Inc Signing Official & Title Michael A Kahn, Vice President b Contact information for person listed in item I above Street Address 13833 Carowmds Boulevard City Charlotte State NC Zip 28273 _ Mailing Address (if applicable) City State Zip Phone 704 588-9463 Fax ( _ 1 N/ A Email N/A Please check the appropriate box The applicant lasted 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 Signung Official & Title b Contact information for person lasted in item 2a above Street Address City State Zip Mailing Address (if applicable) City Phone Email State Fax ( Zip 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 Noms & Tunstall„Consulting Engineers. P,C _ Signing Official & Title 1 PhxWE Norns, P E b Contact information for person listed in item 3a above Mailing Address 1127 Floral Parkway, Suite 400 City Wilmington State NC Zip 28403 Phone (910 ) 287-5900 Fax (910__ �) 287-5902 Email pnornsOntengmeers com 4 Local jurisdiction for building permits Point of Contact: of' Form SWU-101 Version 07jun2010 Page 2 of 6 IV PROJECT INFORMATION 1 In the space provided below, brle fly summarize how the stormwater runoff will be treated Stormwater will sheet flow from the Rarking area to a grassed swale which feeds into a wet detention basin 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 Buildmg 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 11- Post Construction 3 Stormwater runoff from this project drams to the Cape Fear River basin 4 Total Property Area 165 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* 165 acres Total project area shall be calculated to exclude the follownig the normal pool of impounded structures, the area between the banks of streams and nvers, the area below the Normal High Water (NHW) line or Mean Hi$h Water (MHW) line, and coastal wetlands landward from the NHW (or MHVW line 77m resultant project area is used to calculate overall percent built upon area (B UA) Nort-coastal wetlands landward of the NNW (or MHW) Iine may be included in the total project area 8 Project percent of impervious area (Total Impervious Area / Total Project Area) X 100 - 54 96 _ _% 9 How many drainage areas does the project have7l (For high density, count I for each proposed engineered stormwater BMP For Iow 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 1 Drama a Area Drainage Area Drainage Area Receiving Stream Name UT NE Cape Fear River Stream Class " B,SW Stream Index Number * 18-74(47 5 Total Drainage Area (so 65,773 On -site Drainage Area (sf) 65,773 Off -site Drainage Area (so - Proposed Impervious Area** s 39,500 % Impervious Area" total 6006 ltxi ervious' Surface Area Dramag2 Area 1 Drainage Area Drains a Area _ Drainage Area On -site Buildings/Lots (sf) - On -site Streets (so - On -site Parking (so 38,903 On -site Sidewalks (sl - Other on -site (so - Future (so 597 MAY Off -site (so - Existing BUA*** (so - � -"-`--- - Total (sf) 39,500 Stream Class and Index Number can be determined at lrttp //pnrfrrl rrc�terrr ur�hi>zh/irk/t?s/csrr/clrr5tirtrcRtrotr� Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas, sidewalks, gravel areas, etc Form SWU-101 Version 07Jun2010 Page 3 of 6 *** Report only that amount of existing BUA that will remain after development Do not report any existing BUA that is to be removed and which will be replaced by new B UA 11 How was the off -site impervious area listed above determined? Provide documentation N/A Protects in Union County. Contact DWQ Central Office staff to check ithe project is located within a Threatened & Endangered Species watershed that may be subject to more stringent stormwater requirements as per NCAC 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 h ortal ncdenr org/web/wqZws/su/bmp-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 BMP checklists are available from http //portal ncdenr org/web/wq/ws/su/statesw/forms_docs 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 h ortal ncdenr or web w /ws/su ma s ) 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 hft LLportal ncdenr or web w wsZ su Z statesw forms does Inch is 1 Original and one copy of the Stormwater Management Permit Apphcation Form 2 Original and one copy of the signed and notarized Deed Restrictions & Protective Covenants AFA- 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 httu f Zwww envhelp or&/pages(onestogexpress 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 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'/z mile radius on the map 7 Sealed, signed and dated calculations Two sets of plans folded to S 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 c h Identify all surface waters on the plans by delineating the normal pool elevation offlECIEIVE unpounded structures, the banks of streams and rivers, the MHW or NHW line ofwaters, and any coastal wetlands landward of the MHW or NHW linesdM�Y2fF 2012 Delineate the vegetated buffer landward from the normal pool elevation of une structures, the banks of streams or rivers, and the MHW (or NHW) of tidal wa i Dimensioned property/project boundary with bearings & distances - j Site Layout with all BUA identified and dimensioned k Existing contours, proposed contours, spot elevations, finished floor elevations I Details of roads, drainage features, collection systems, and stormwater control measures in 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 Form SWU-101 Version 07Jun2010 Page 4 of 6 o Drainage areas delineated (included in the main set of plans, not as a separate document) p Vegetated buffers (where required) 9 Copy of any applicable soils report with the associated SHWT elevations (Please identify QeA) &L_ elevations in addition to depths) as well as a map of the boring locations with the existing elevations and boring Iogs Include an 8 5"x11" copy of the NRCS County Soils map with the project area clearly delineated For projects with infiltration BMPs, the report should also include the soil type, expected infiltration rate, and the method of determining the infiltration rate (Infiltration Devices submitted to WiRO• Schedule a site visit for DWQ to venfy the SHWT prior to submittal, (910) 796-7378 ) 10 A copy of the most current property deed Deed book 5639 Page No 1541 Q11W 11 For corporations and limited habibty corporations (LLC) Provide documentation from the NC Al Secretary of State or other official documentation, which supports the titles and positions held by the persons listed in Contact Information, item la, 2a, and/or 3a per NCAC 2H 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 http //www secretary state nc usCorpora tions/CSearch asRx 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 signihcantly or the proposed BUA aIIocations 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 h ortal ncdenr orgZwebZwq/ws/su/stateswforms does Download the Iatest 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 theirs, that they will run with the land, that the required covenants cannot be changed or deleted without concurrence from the NC DWQ and that they will be recorded prior to the sale of any lot. VIII CONSULTANT INFORMATION AND AUTHORIZATION Applicant- Complete this section if you wish to designate authority to another individual and/or firm (such as a consulting engineer and/or firm) so that they may provide information on your behalf for this project (such as addressing requests for additional information) Consulting Engineer I Pfullip Norris P E Consulting Firm Norris & Tunstall Consulting_ Engineers, P C Mailing Address 1127Floral Parkway, Suite 400 City WiImuigton _ State NC Zip 29403 Phone (910 ) 287-5900 Fax (910 } 287-5902 Email pnorrisOnterigineers com TX PROPERTY OWNER AUTHORIZATION (if Contact Information, item 2 has been filled out, complete this section) i, (print or type name of person fisted in Contact Information, item 2a) , certify that I own the property identified inthis 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 Ia) 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 ECEIVE MAY 2 4 2012 Form SWII-101 Version 07.1un2010 Page 5 of 6 p}'' 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 143-2151 and may result in appropriate enforcement action including the assessment of civil penalties of up to $25,000 per day, pursuant to NCGS 143-215 6 Signature Date I, , a Notary Public for the State of , County of do hereby certify that personally appeared before me this ! day of . .. _ and acknowledge the due execution of the application for a stormwater permit Witness my hand and official sea[, SEAL My commission expires X APPLICANT'S CERTIFICATION I, (print or type name of person listed in Contact Information, item Ta) MichiieI A Kahn, ce President certify that the information included on this permit application form is, to the best of my knowledge, correct and that the protect will be constructed in conformance with the approved plans, that the required deed restrictions and protective covenants will be recorded, and that the proposed protect complies with the requirements of the applicable stormwater rules under 15A NCAC 2H 1000, SL 2006-246 (Ph 11- Post Construction) or SL 2008-211 I, UICI n n G . M " 4he-s a Notary Public for " do hereby certify that I" (�/-Ae before me this JVay of and a stormwater permit. Witness my hand and official seal, SEAL of Date 14d18 ! My commission expires County of personally appeared of,the application for ECIEIVEFP MAY 2 4 1012 BY_ Form SWU-101 Version 07Jun2010 Page 6 of 6 Permit No (to be provided by DWO) OF w a rE9 AXA TA �G NCDENR STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM WET DETENTION BASIN SUPPLEMENT /fir 120Z 3 This form must be tilled out, printed and submitted The Required Items Checklist (Pad 111) must be printed, filled out and submitted along with all of the required information ( PROJECT INFORMATION Project name Empire Distributors tot 8A Contact person J Phillip Moms, P E I Norris & Tunstall Consulting Engineers Inc Phone number 910-287 5900 Date 16.May 12 Drainage area number _ 1 II DESIGN INFORMATION " Slts Characteristics Drainage area 65,773 ft Impervious area, post -development 39,500 le % impervious 6006 % Design rainfall depth 1 5 rn Storage Volume Non -SA Waters Minimum volume required Volume provided Storage Volume SA Waters 1 5" runoff volume Pre -development 1-yr 24-hr runoff Post -development 1-yr, 24-hr runoff Minimum volume required Volume provided Peak Flow Calculations Is the prelpost control of the lyr 24hr stone 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 PrelPost 1-yr 24-hr peak flow control Elevations Temporary pool elevation Permanent pool elevation SHWT elevation (approx at the perm pod elevation) Top of 10ft vegetated shelf elevation Bottom of 100 vegetated shelf elevation Sediment deanout, top elevation (bottom of pond) Sediment cieanout, bottom elevation Sediment storage provided Is there additional volume stored above the state -required temp pool? Elevation of the top of the additional volume 4 855 ft3 5,119 ft3 OK volume provided is equal to or in excess of volume required to ft3 ft3 ft3 ft3 Y (Y or N) 37 in 0 20 (unitless) _ C E I V t'V- 0 65 (unitiess) 180 in/hr OK MAY 2 4 2012 054 ft315ec 177 ft3/sec 123 ft3(s 25 20 fmsl 24 65 fmsl .IM.L imsl iI. �t titer 2515 first c� 2415 fmsl Data not needed for calculation option #1, but OK if provided 18 00 frrrsl 16 00 fmsl Data not needed for calculation option #1 but OK d provided 2 00 ft N (Y or N) fmsl Form SW401 Wet Detention Basin -Rev 94118/12 Parts I & 11 Design Summery Page 1 of 2 Permit No (to be prowdad by DWQ) II DESIGN INFORMATION Surface Areas Area, temporary pool 10,811 a, Area REQUIRED permanent pool 5 038 le SAIDA ratio 7 66 (undless) Area PROVIDED, permanent pool, A,,-pw 7,660 ft` OK Area, bottom of 10ft vegetated shelf, Ab w w 4,212 ft` Area sediment cleanout top elevation (bottom of pond) Ab�i_,„ d 805 tt` Volumes Volume, temporary pool 5119 ft3 OK Volume, permanent pool, Vp, _pw 22,297 ft3 Volume, forebay (sum of forebays if more then one forebay) 4,266 ft3 Forebay % of permanent pool volume 191 % % OK SAIDA Table Data Design TSS removal 90 % Coastal SAIDA Table Used? Y (Y or N) MountairdPledmont SAIDA Table Used? N (Y or N) SAIDA ratio 766 (unitless) Average depth (used in SAIDA table) Calculation option 1 used? (See Figure 10-2b) Y (Y or N) Volume, permanent pool, Vpe--Pw 22,297 ft' Area provided, permanent pool, Ap,,,,,_,d 7 660 ft' Average depth calculated 291 It Need 3 ft min Average depth used in SAIDA d,, (Round to nearest 0 5ft) 30 it OK Calculation option 2 used? (See Figure 10-2b) N (Y or N) Area provided, permanent pool, A,,,,,,_pd 7 660 ft` Area, bottom of 10ft vegetated shelf, Aw sh�r 4 212 ft` Area sediment cleanout, top elevation (bottom of pond), A,_m d 805 fe "Depth' (distance bfw bottom of 10ft shelf and top of sediment) 615 it Average depth calculated 2 91 ft Need 3 ft msn Average depth used in SAIDA, d. (Round to down to nearest 0 5ft) 30 ft OK Drawdown Calculations Drawdown through orifice? Diameter of onfice (if circular) Area of orifice (if -non -circular) Coefficient of discharge (Co) Driving head (H.) Drawdown through weir? Weir type Coefficient of discharge (C„) Length of weir (L) Driving head (H) Pre -development 1 yr, 24-hr peak flow Post -development 1-yr, 24-hr peak flow Storage volume discharge rate (through discharge onfice or weir) Storage volume drawdown time Additional Information Vegetated side slopes Vegetated shelf slope Vegetated shelf width Length of ftowpath to width ratio Length to width ratio Trash rack for overflow & onfice? Freeboard provided Vegetated filter provided? Recorded drainage easement provided? Capures all runoff at ultimate build -out? Drain mechanism for maintenance or emergencies is Y (Y or N) W. —+W in ins 0 60 (unitless) 018 ft N (Y or N) (undless) (unitless) _R ft 0 54 fOlsec 177 ftlisec 0 02 ft31sec lol5lt�. CQoc'Qlams � i►a��,� ECEIVE MAY 2 4 2012 3 1 OK H Y — 10 1 OK 100 ft OK 3 1 OK 30 1 OK Y (Y or N) OK 12 ft OK N (Y or N) OK N (Y or N) Insufficient Recorded drainage easement required Y (YorN) OK on Nn L`o ilmPrc �oz! Pump our 2 27 days OK, draws down in 2 5 days form SW401 Wet Detention Basm-Rev 5-4/18/12 Pads I & 11 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 ' A Page! Plan Sheet No 1 Plans (1" - 50' or larger) of the entire site showing C 3 - Design at ultimate build -out, h1pr - Off -site drainage (if applicable), Dft - Delineated drainage basins (include Rational C coefficient per basin), C+ - Basin dimensions, c3 - Pretreatment system, C3,&" - High flow bypass system, NIN - Maintenance access, - WeLp o4 Si.. OLt P494411- 03-1 mot+ r-4W - Proposed drainage easement and public right of way (ROM, L3,e 1+ - Overflow device, and NVk- - Boundaries of drainage easement 2 Partial plan (1" = 30' or larger) and details for the wet detention basin showing 04 - Outlet structure with trash rack or similar, t4i�r -Maintenance access, - �cw SQL jw io. �7 a-06— r 4 - Permanent pool dimensions, C.'+ - Forebay and main pond with hardened emergency spillway, Q+ - Basin cross-section, CA f - Vegetation specification for planting shelf, and µW- Filter stnp 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 MECE1VIE nby MAY 2 4 2012 D 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 5 A table of elevations, areas, incremental volumes & accumulated volumes for overall pond and for forebay, to verify volume provided —0 6 A construction sequence that shows how the wet detention basin will be protected from sediment until the rou ex- entire drainage area is stabilized _ Cam_ 7 The supporting calculations 8 A copy of the signed and notarized operation and maintenance (0&M) agreement IAAC 9 A copy of the deed restrictions (if required) �— 14 10 A soils report that is based upon an actual field investigation, sod borings, and Infiltration tests County soil maps are not an acceptable source of soils information Form SW401-Wet Detention Basin -Rev 94/18/12 Part III Required Items Checklist, Page 1 of 1 Permit Number (to be provided by DWQ) Drainage Area Number Wet Detention Basin Operation and Maintenance Agreement NTofI'26z3 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 BW elements noted in the inspection will be corrected, repaired or replaced m=ediately 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 curial fertilization that is required to establish the plants on the vegetated shelf Stable groundcover should be mamtamed 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 dram 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 m � E �,� within 24 hours after every storm event greater than 10 inches (or 15 inc in a Coastal County) Records of operation and maintenance should be kept in ffnMs2t4 2012 location and must be available upon request. BY Inspection activities shall be performed as follows Any problems that are found shalt be iepaired immediately BMW element: Potential problem. How I well remediate theproblem- The entire BMP Trash debris is present Remove the trash debns 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 apelication Vegetation is too short or too Maintain vegetation at a height of long approximatelyapproxirnately six inches Form SW401-Wet Detention Basin O&M -Rev 4 V Page 1 of 4 Permit Number (to be provided by DWQ) Drainage Area Number BMP element Potential problem. How I will remediate theproblem: The inlet device pipe or The pipe is clogged Unclog the pipe Dispose of the Swale sedunent 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 remforced turf matting or nprap 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 sl2raM The vegetated shelf Best professional practices Prune accordmg to best professional show that pruning is needed practices to maimtam optimal plant health Plants are dead, diseased or Determme the source of the dying problem soils, hydrology, disease, etc Remedy the problem and replace plants Provide a one-time fertilizer apphcation to establish the ground cover if a soil test indicates it is necess Weeds are present Remove the weeds, preferably by hand If pesticide is used, wipe it on the plants rather than Mraymg 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 sedunent 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 Eowth Cattails, phragmites or other Remove the plants by wiping them invasive plants cover 50% of with pesticide (do not spray) the basm surface ECEIVE MAY 2 4 2012 Form SW401-Wet Detention Basin O&M -Rev 4 BY: Page 2 4 Permit Number (to be provided by DWQ) Drainage Area Number BMP element- Potential roblem: How I will remediate theproblem- 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 re am 4 a hcable 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 Urut 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 rea"y penetrate into accumulated sediments When the permanent pool depth reads 6 65 feet to the main pond, the sediment shall be removed When the permanent pool depth reads 4 65 feet in the forebay, the sediment shall be removed Sediment Removal Bottom Ele ------------- -- !''OREBAY BASIN DIAGRAM ill in the blanks) %Volume' /ft Min Sediment Storage Form SW401-Wet Detention Basin O&M -Rev 4 Permanent Pool Elevation 24 65 Pool �- - - - - - --- Sediment Removal Elevation 18 volume --------------------------j Bottom Elevation MAIN POND ECEIVE MAY 2 4 2012 BY Page 3 of 4 1-ft Vn Sediment Storage 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 Empire Distributors - Lot 8A BMP drainage area number l Print name Michael A Kahn Title Vice President Address 13833 Carowinds Boulevard, Charlotte, NC 28273 Phone Signah Date 5 1$ l z— 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 n n e I' 1 , a Notary Public for the State of %Ilnr ? �QI'DI rkt. county of ae?zb do hereby certify that klkh ►i _ personally appeared before me this / day of MCU and acknowledge the due execution of the forgoing w t detention basin mainten a requirements Witness my hand and official seal, SEAL My commission expires a ',�' /� CI jj/ E - MAY 2 4 2012 8Y Form SW40I-Wet Detention Basin O&M -Rev 4 page 4 of 4 N 0 Slate Stomrwater hitanagement Systems Pemrit No. SW8120511 Empire DrWh mIxim -teat 8A Stornwrater Permit No SW812D611 Rmnswick Mew Hanover n ounty Designer's Certifleatlan John Phillip Norris Professional Engineer I, as a duly reglstervd to the Stale of North Carolina having been authorized to observe (penodimlly/ wee*/ full trine) the oonstruction of the project, Empire Distributors Lot 8A (Q Empire Distributors of North Carolina, In for �pro(ect Owner) trelaby state lhal, to the best of my , due cart and diigenue arcs treed st the obsenratwn of fire protect conshmclon s ich that the mahodlon was observed to be built wain substantrgl ouirnig nae and tntertt of the approved plans and speclticatbm The d e6fist of It w on page 2 of Om form Is bdtded in the Catocatim Noted devlations frown approved plans and spedfallons slgnawre Reglstralw Number 11966 Date November 6, 2012 i2 11966 Page 6 of 7 SEAL �NOV 08 2012 ECEIVE D ev� O mJ f * � y xet j; D 9•� § � ®•9 e �� @ C denim RequMM* The & map area to fhe system co Wns appn Wma* the pemuttad acreage The drainage area to fhe system contains no more than die pearrdled amount of b A4*on area AD the butt -upon area associated with the pod is graded such that the nmo f drains m fhe system All reef drains are located suds drat the runoff Is dtrected into the system The outlet struc in elevations are per the approved plan, The outlet sMxhn Is located per the approved plans Trash rack is provided on the outlet etruchm All slopes are grassed with permment vegetation. Vegetated slopes are no steeper than 31 The Inlets are located per the approved plans and do not cause shmt-c� of ire system. The pe vdW amounts of surbw area aMW volume have been provided RequmW &wulam devices one cony* sod and per the approved plans AN requited design depft are pmvbded All reclubul parts of the system are prow, such as a vegetated shelf, and a tarebay The required stem &Nnsiars are provrded per die approved plaits. AN components of the sla mwder BMP are located In eitlre mayded mmmon areas, or recorded easement. NCDENR-M Faeglonal Ofike ktspeft New Hanover Cow* tang hrspeckm Page 7 of 7 ti NORRIS & TUNSTALL CONSULTING ENGINEERS PCJ Phillip Norris, P E ! .. John S Tunstall, P E Brunswick Office 1429 Ash -Little River Road, Ash NC 28420 910-287-5900 (office) 910-287-5902 (fax) LETTER OF TRANSMITTAL To Ms Linda Lewis Date November 6, 2012 Job No 12023 NC DENRIDiv of Wtr Qlty/Surface Wtr Protection subject Empire Distributors - Lot 8A 127 Cardinal Drive Extension Wilmington, NC 28405-3845 WE ARE SENDING YOU VIA MAIL ® ATTACHED ❑ UNDER SEPARATE COVER ❑ SHOP DRAWINGS ❑ PRINTS ❑ TRACINGS ❑ SPECIFICATIONS ❑ DISKS ❑ COPY OF LETTER ❑ FAX TRANSMITTAL: NUMBER OF PAGES INCLUDING THIS TRANSMITTAL Call 910-287-5900 if you have any difficulty receiving this message COPIES DATE NO DESCRIPTION 1 11-06-12 Designer's Certification > i Nov D 8 2012 9Y• ❑ ® AS REQUESTED ❑ FOR REVIEW AND APPROVAL ❑ FOR APPROVAL FOR YOUR USE ❑ FOR BIDS DUE ❑ YOUR PRINTS LOANED TO US REMARKS cc Mr Dyrc McLeod / Empire Distributors SIGNED Phillip N rris, P E / neh CONFIDENTIAL AND PRIVILEGED Information contained in this document is privileged and confidential, intended for the sole use of the addressee If you are not the addressee or the person responsible for delivering it to the addressee you are hereby notified that any dissemination, distribution or copying of this document is strictly prohibited If you have received this document in error please immediately notify the sender and return to the address above