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HomeMy WebLinkAboutSW8060909_HISTORICAL FILE_20070111STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW8 Q�oo 9oq DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE 2 00l Ol 11 YYYYMMDD �\o�0F W A PF9 O r January 11, 2007 James L Wilson, President Barefoot Flooring, Inc 2901 Castle Hayne Rd Castle Hayne, NC 28429 Subject Stormwater Permit No Barefoot Square High Density Project New Hanover County Dear Mr Wilson Michael Faslcy Governor William G Ross Jr, Secretary North Carolina Department of Em iron men t and Natural Resources TWO FILE COPY Alan W Klimek P E Director Di,ision of Water Quality The Wilmington Regional Office received a complete Stormwater Management Permit Application for Barefoot Square on January 4, 2007 Staff review of the plans and specifications has determined that the protect, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H 1000 We are forwarding Permit No SW8 060909 dated January 11, 2007, for the construction of the subject project This permit shall be effective from the date of issuance until January 11, 2017, and shall be subject to the conditions and limitations as specified therein Please pay special attention to the Operation and Maintenance requirements in this permit Failure to establish an adequate system for operation and maintenance of the stormwater management system will result in future compliance problems If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing upon written request within sixty (60) days following receipt of this permit This request must be in the form of a written petition, conforming to Chapter 150E of the North Carolina General Statutes, and filed with the Office of Administrative Hearings, P O Drawer 27447, Raleigh, NC 27611-7447 Unless such demands are made this permit shall be final and binding If you have any questions, or need additional information contact Linda Lewis, or me at (910) 796-7215 Sincce ety Edward Beck Regional Supervisor Surface Water Protection Section concerning this matter, please cc Kelly Johnson, DWQ Phil Tripp, P E , Tripp Engineering Tony Roberts, New Hanover County Building Inspections City of Wilmington Development Services Beth E Wetherill, New Hanover County Engineering Linda Lewis Wilmington Regional Office Central Files North Carolina Dnision of Water Quality 127 Cardinal Drive Extension Wilmington, NC 28405 Phone (910) 796-7215 Wilmington Regional Office Internet ww ncNatcrquahty orY Fax (910) 350 2004 An Equal Opportunity/Affirmative Acton Employer— 50%Recycied110% Post Consumer Paper om r,Carolina urally Customer Service 1 877-623 6748 State Stormwater Management Systems Permit No SW8 060909 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY STATE STORMWATER MANAGEMENT PERMIT HIGH DENSITY DEVELOPMENT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO James L Wilson & Barefoot Flooring, Inc Barefoot Square 2901 Castle Hayne Road, Wilmington, New Hanover County FOR THE construction, operation and maintenance of a wet detention pond in compliance with the provisions of 15A NCAC 2H 1000 (hereafter referred to as the "stormwater rules') and the approved stormwater management plans and specifications and other supporting data as attached and on file with and approved by the Division of Water Quality and considered a part of this permit This permit shall be effective from the date of issuance until January 11, 2017, 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 15 on page 3 of this permit The stormwater control has been designed to handle the runoff from 42,961 square feet of impervious area 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 4 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 SW8 060909 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY STATE STORMWATER MANAGEMENT PERMIT HIGH DENSITY DEVELOPMENT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO James L Wilson & Barefoot Flooring, Inc Barefoot Square 2901 Castle Hayne Road, Wilmington, New Hanover County FOR THE construction, operation and maintenance of a wet detention pond in compliance with the provisions of 15A NCAC 2H 1000 (hereafter referred to as the "stormwater rules') and the approved stormwater management plans and specifications and other supporting data as attached and on file with and approved by the Division of Water Quality and considered a part of this permit This permit shall be effective from the date of issuance until January 11, 2017, 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 15 on page 3 of this permit The stormwater control has been designed to handle the runoff from 42,961 square feet of impervious area 3 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 4 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 SW8 060909 11 The following design criteria have been provided in the wet detention pond and must be maintained at design condition a Drainage Area, 9cres Onsite, ft Offsite, ft2 b Total Impervious Surfaces, ft2 c Design Storm, inches d Pond Depth, feet e TSS removal efficiency f Permanent Pool Elevation, FMSL g Permanent Pool Surface Area, ft2 h Permitted Storage Volume, ft3 Temporary Storage Elevation, FMSL i Controlling Orifice k Permitted Forebay Volume, ft3 1 Receiving Stream/River Basin m Stream Index Number n Classification of Water Body 207 90,170 0 42,961 1 6 90% 31 5 7,229 7,922 325 1" pipe 4,433 Ness Creek/ Cape Fear Basin 18-74-62 "C,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 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 revegetation 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 g Access to the outlet structure must be available at all times Page 3 of 7 State Stormwater Management Systems Permit No SW8 060909 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 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 6 The facilities shall be constructed as shown on the approved plans This permit shall become voidable unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data 7 Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, a certification must be received from an appropriate designer for the system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation Any deviations from the approved plans and specifications must be noted on the Certification A modification may be required for those deviations 8 If the stormwater system was used as an Erosion Control device, it must be restored to design condition prior to operation as a stormwater treatment device, and prior to occupancy of the facility 9 Access to the stormwater facilities shall be maintained via appropriate easements at all times 10 The permittee shall submit to the Director and shall have received approval for revised plans, specifications, and calculations prior to construction, for any modification to the approved plans, including, but not limited to, those listed below a Any revision to any item shown on the approved plans, including the stormwater management measures, built -upon area, details, etc b Project name change c Transfer of ownership d Redesign or addition to the approved amount of built -upon area or to the drainage area e Further subdivision, acquisition, lease or sale of all or part of the project area The protect 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 f Filling in, altering, or piping of any vegetative conveyance shown on the approved plan 11 The permittee shall submit final site layout and grading plans for any permitted future areas shown on the approved plans, prior to construction 12 A copy of the approved plans and specifications shall be maintained on file by the Permittee for a minimum of ten years from the date of the completion of construction Page 4 of 7 State Stormwater Management Systems Permit No SW8 060909 13 The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements of the permit Within the time frame specified in the notice, the permittee shall submit a written time schedule to the Director for modifying the site to meet minimum requirements The permittee shall provide copies of revised plans and certification in writing to the Director that the changes have been made III GENERAL CONDITIONS This permit is not transferable except after notice to and approval by the Director In the event of a change of ownership, or a name change, the permittee must submit a formal permit transfer request to the Division of Water Quality, accompanied by a completed name/ownership change form, documentation from the parties involved, and other supporting materials as may be appropriate The approval of this request will be considered on its merits and may or may not be approved The permittee is responsible for compliance with all permit conditions until such time as the Division approves the transfer request 2 Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to enforcement action by the Division of Water Quality, in accordance with North Carolina General Statute 143-215 6A to 143-215 6C 3 The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances, which may be imposed by other government agencies (local, state, and federal) having jurisdiction 4 In the event that the facilities fad to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems 5 The permittee grants DENR Staff permission to enter the property during normal business hours for the purpose of inspecting all components of the permitted stormwater management facility 6 The permit may be modified, revoked and reissued or terminated for cause The filing of a request for a permit modification, revocation and reissuance or termination does not stay any permit condition 7 Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual 8 Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit 9 The permittee shall notify the Division in writing of any name, ownership or mailing address changes within 30 days Permit issued this the 11 th day of January 2007 NORTH OLINA ENVIRONMENTAL MANAGEMENT COMMISSION for Alan W Klimek, P E , Director Division of Water Quality By Authority of the Environmental Management Commission Page 5 of 7 OFFICE USE ONLY D,i e Rccgiled Fee Paid Permit Number 9 eS /c,2� State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM Thiv form maybe photocopied for use as an original 1. GENERAL INFORMATION 1 Applicants name (specify the name of the corporation, individual, etc who owns the project) Barefoot Flooring, Inc 2 Print Owner/Signing Official's name and title (person legally responsible for facility and compliance) James L Wilson / President 3 Mailing Address for person listed in Rem 2 above 2901 Castle Havne Road City _Castle Hayne State NC Zip 28429 Telephone Number 910 264-1005 4 Project Name (subdivision, facility, or establishment name —should be consistent with project name on plans specifications, letters, operation and maintenance agreements, etc ) Barefoot Square 5 Location of Project (street address) 2901 Castle Havne Road City Castle Ha3me County New Hanover 6 Directions to project (from nearest major intersection) From I-140 West. turn LEFT onto NC 133 — Castle Havne Road Travel SOUTH for 1 48 miles Turn RIGHT onto North County Drive Site is on the RIGHT 7 Latitude N 340 17' 50" Longitude W 770 55' 23 5" of project 8 Contact person who can answer questions about the project Name Jonathan W Ham, E I Telephone Number 910-763-5100 II PERMIT INFORMATION: 1 Specify whether project is (check one) X New Renewal Modification Form SWU-101 Version 3 99 Page 1 of 4 2 If this application is being submitted as the result of a renewal or modification to an existing permit, list The existing permit number and its issue date (if known) 3 Specify the type of project (check one) Low Density X High Density Redevelop GeneralPermit Other 4 Additional Project Requirements (check applicable blanks) CAMA Major X Sedimentation/Erosion Control _ 404//401 Permit _ NPDES Stormwater Information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748 III PROJECT INFORMATION I In the space provided below, summarize how Stormwater will be treated Also attach a detailed narrative (one to two pages) describing stormwater management for the project Stormwater shall be treated by wet detention 2 Stormwater runoff from this project drams to the Cape Fear River basin 3 Total Project Area 2 07 acres 4 Project Built Upon Area 45 7 % How many drainage basins does the project have9 1 6 Complete the following information for each drainage area If there are more than two 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 Basin' 1 �Dramage Basm'2-" Receiving Stream Name Ness Creek Receiving Stream Class C Sw Drainage Basin Area 207 Existing Impervious * Area 21,122 SF Proposed Impervious * Area 42,961 SF % Impervious* Area (total) 47 6% Impervious * Surface Area ` Drainage Basin 1 Drainage Basin.2 On -site Buildings 16,000 SF On -site Streets On -site Parking 21,225 SF On -site Sidewalks 5,736 SF Other on -site Off -site Total $= 42,961 SF * 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 3 99 Page 2 of 4 ,? 7 How was the off -site impervious area listed above derived? IV DEED RESTRICTIONS AND PROTECTIVE COVENANTS The following italicized deed restrictions and protective covenants are required to be recorded for all subdivisions, outparcels and future development prior to the sale of any lot If lot sizes vary significantly, a table listing each lot number, size and the allowable built -upon area for each lot must be provided as an attachment 1 The following covenants are intended to ensure ongoing compliance with state sionmvater management permit number as issued by the Division of Water Qwhiy These covenants may not be changed or deleted without the consent ofthe State 2 No more than square feet ofary lot shall be covered by structures ofimpervious materials Impervious materials include asphalt, gravel, concrete, brick stone, slate or similar matenal but do not include wood decking or the water surface ofswimming pools 3 Swales shall not be filled in, piped or altered except as necessary to provide driveway crossings 4 Built -upon area in excess ofthe permuted amount requires a state stormwater mnaagemem permit modificationprior to construction 5 All permitted runofffrom ouiparcels orf acre development shall be directed into the permitted stormwater control system These connections to the stormwater oontrol system shall be performed in a manner that maintains the integrity andperformance ofthe system as permitted By your signature below, you certify that the recorded deed restrictions and protective covenants for this project shall include all the applicable items required above, that the covenants will be binding on all patties and persons claiming under them, that they will run with the land, that the required covenants cannot be changed or deleted without concurrence from the State, and that they will be recorded prior to the sale of any lot V. SUPPLEMENT FORMS The applicable state stormwater management permit supplement form(s) listed below must be submitted for each BMP specified for this project Contact the Stormwater and General Permits Unit at (910) 733-5083 for the status and availability of these forms Form SWU-102 Form SWU-103 Form SWU-104 Form SWU-105 Form SWU-106 Form SWU-107 Form SWU-108 Form SWU-109 Wet Detention Basin Supplement Infiltration Basin Supplement Low Density Supplement Curb Outlet System Supplement Off -Site System Supplement Underground Infiltration Trench Supplement Neuse River Basin Supplement Innovative Best Management Practice Supplement Form SWU-101 Version 3 99 Page 3 of 4 VI. SUBMITTAL REQUIREMENTS Only complete application packages will be accepted and renewed by the Dmsion of Water Quality (DWQ). A complete package includes all of the items listed below. The complete application package should be submitted to the appropriate DWQ Regional Office- 1 Please indicate that you have provided the following required information by initialing in the space provided next to each item • Original and one copy of the Stormwater Management Permit Application Form • One copy of the applicable Supplement Form(s) for each BMP • Permit application processing fee of $420 (payable to NCDENR) • Detailed narrative description of stormwater treatments management • Two copies of plans and specifications, including - Development/Project name - Engineer and firm - Legend - North arrow - Scale - Revision number and date - Mean high water line - Dimensioned property/project boundary - Location map with named streets or NCSR numbers - Original contours, proposed contours, spot elevations, fuushed floor elevauons - Details of roads, drainage features, collection systems, and stormwater control measures - Wetlands delineated, or a note on plans that none exist - Existing drainage (including off -site), drainage easements, pipe saes, runoff calculations - Drainage areas delineated - Vegetated buffers (where required) VII AGENT AUTHORIZATION If you wish to designate authority to another individual or firm so that they may provide information on your behalf, please complete this section Designated agent (individual or fine) Trion En ring eenng P C Mailing Address City Wilmington State NC Zip 28401 Phone (910)763-5100 VIII APPLICANT'S CERTIFICATION Fax (910)763-5631 I, (print or type name of person listed in General Information, item 2) James L Wilson 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 15A NCAC 2H 1000 / Signature Nate Fonn SWU-101 Version 3 99 Page 4 of 4 ATFgo Michael F Easley, Governor (r William G Ross Jr, Secretary rNorth Carolina Department of Environment and Natural Resources < lit1 low Alan W Klimek, P E , Director Division of Water Quality January 5, 2007 RECEIVED IAN 1 1 2007 Linda Lewis DWQ Wilmington Regional Office 127 Cardinal Drive Extension Wilmington, NC 28405-2845 Subject RETURN OF PROJECT FILE Stormwater Project No SW8 060909 Barefoot Square New Hanover County Dear Ms Lewis I have enclosed the application package for this project Sincerely, elly Johnson Environmental Engineer PMvCavolma AWAMAY North Carolina Division of Water Quality 1617 Mad Service Center Raleigh NC 27699-1617 Phone (919) 733-7015 Customer Service Internet h2o enr state nc us 512 N Salisbury St Raleigh, NC 27604 FAX (919) 733-2496 1-877-623-6748 An Equal Opportunity/Affirmative Action Employer —50%Recycletill 00% Post Consumer Paper TRIPP ENGINEERING, P.C. 0 419 Chestnut Street Wilmington, North Carolina 28401 Phone (910) 763-5100 • FAX (910) 763-5631 January 3, 2007 NCDENR Division Water Quality 1617 Mad Service Center Raleigh, NC 27699-1617 Attn: Ms Kelly Johnson Re- Barefoot Square Project No SW8 060909 TE 06071 Dear Kelly In response to your correspondence dated December 1, 2006, we offer the following 1 The outlet structure detail has been corrected 2 The orifice has been corrected on the plan 3 Only two areas required proposed contours because most other areas are going to remain as existing 4 A no wetlands note has been added to the plans 5 All parking and sidewalks have been dimensioned and flow arrows provide necessary drainage information 6 The application has been corrected 7 Sedimentation and erosion control permit application has been submitted to New Hanover County engineering for approval Please review for approval and contact us with any questions or comments Thank you Sincerely, Tripp Engineering, P C. Jonathan W. Ham, E.I. JWH dcb Eric j\AS 0 ` 7c��aJ 5")Jv y SN�Vta - bolo Barefoot Square, SP8060909 Subject. Barefoot Square, SP8060909 From: Kelly Johnson <kelly p Johnson@ncmail net> Date: Wed, 06 Dec 2006 11 22 07 -0500 To- Jonathan-tnppeng@ec rr corn Jonathan, I talked to Linda in the Wilmington office about the slopes for the parking lot in your application (#5 in the add info letter) She said that while arrows are helpful in showing the direction of the water flow, that spot elevations and final (post -development) contours are required We discussed (per #3 of the add info letter) that the site is essentially flat However, there should be final contours to show that the water will,run in the direction of the arrows, even if it is only at a slight elevation Please call if you have any further questions, Kelly Johnson I of 1 12/7/2006 8 37 AM James Wilson Barefoot Flooring, Inc 2901 Castle Hayne Rd Castle Hayne, NC 28429 Dear Mr Bunn Michael F Easley, Governor Witham G Ross Jr, Secretary North Carolina Department of Environment and Natural Resources Alan W Klimek, P E, Director Division of Water Quality December 1, 2006 Subject REQUEST FOR ADDITIONAL INFORMATION Stormwater Project No SW8 060909 Barefoot Square New Hanover County The Division of Water Quality's Stormwater Permitting Unit received a Stormwater Management Permit Application for Barefoot Square on September 15, 2006 A preliminary review of the package indicates that additional information is required to complete processing this permit application Please address the following items i %--i Please correct the pool elevations on the outlet structure detail to be consistent with the pool elevations shown in other sections of the plans and the permit application �T Please correct an inconsistency in the orifice diameter between the application and the development plan The plan indicates a 0 75" diameter, and the application indicates a 1 00" diameter '3 Please provide proposed contours Original contours, proposed contours, spot elevations, and finished floor elevations are required The proposed contours should also show whether or not there is offsite drainage to the site , 4 Please either delineate all wetlands on site, disturbed or undisturbed, or note on the plans that none exist `"5— Please provide length, width, and slopes for the road, parking area, and sidewalks —6 Please report all values in square feet on the application —17 The application does not show that a sedimentation and erosion control plan is needed for this project However, please note that a sedimentation and erosion control plan is required. This does not require a change to the application Please note this request for additional information is in response to a preliminary review, and that at this , time a complete application package has not been received The information requested should be received in our office by December 29, 2006, or the application will be returned as incomplete The return of a project will necessitate resubmittal of all required items, including the application fee 9 1tCarolina ✓vatrrra//y North Carolina Division of Water Quality 1617 Mad Service Center - Raleigh, NC 27699-1617 Phone (919) 733-7015 Customer Service Internet h2o enr state ne us 512 N Salisbury St Raleigh, NC 27604 FAX (919) 733-2496 1-877 623-6748 a � An Equal Opportunity/AKnnaWe Acton Employer- 50% RegGed/10% Post Consumer Paper Mr ;'Ames Wilson Barefoot Flooring, Application No SW8 060909 Additional Information Request November 27, 2006 If you need additional time to submit the information, please mail or fax your request for a time extension to the Division at the address and fax number on the bottom of this letter The request must indicate the date by which you expect to submit the required information The Division is allowed 90 days from receipt of a completed application to issue the permit. The construction of any impervious surfaces, other than a construction entrance under an approved Sedimentation and Erosion Control Plan, is a violation of NCGS 143-215 1 and is subject to enforcement action pursuant to,NCGS 143-215 6A Please reference the State assigned project number on all correspondence Please also note this information should be sent to the Raleigh office, as opposed to the Wilmington office Any original documents that need to be revised have been sent to the engineer or agent All original documents must be returned or new originals must be provided, copies are not acceptable If you have any questions concerning this matter, please contact me at (919) 733-5083, extension 376 Sincerely, <q Kelly Jo on Environmental Engineer cc Linda Lewis, DWQ Wilmington Regional Office Cameron Weaver, DWQ Wilmington Regional Office Ken Pickle, DWQ Central Office Stormwater Permitting Unit File SW8 060909 Jonathan Ham, Tripp Engineering Central Files TRIPP ENGINEERING, P.C. 419 Chestnut Street Wilmington, North Carolina 28401 (fin Phone (910) 763-5100 • FAX (910) 763-5631 Qn September 7, 2006 NCDENR Division Water Quality 127 Cardinal Drive Wilmington, NC 28405-3845 Attn: Ms. Linda Lewis Re Barefoot Square New Hanover County, NC TE 06071 Dear Linda SEP 1 5 7006 Enclosed please find two (2) sets of plans, one (1) signed original and one (1) copy of the application form with narrative, one (1) wet detention basin supplement, two (2) sets of calculations and one check for the application fee Please review for approval and contact us with any questions or comments Thank you Sincerely, Tripp Engineering, P C 4 Jonathan W Ham, E.I. JWH dcb Eric 9/15/2006 JVfH Barefoot Square Pond Calculations 06071 Total Drainage Area Ed ft acres 90169 1 207 Impervious Area land Use sq ft I acres Building Area 16 000 037 Asphalt Area 21 225 049 Concrete Area 5 736 013 Total 42 961 099 Slonnwater Calculations Time of Concentration Hydraulic Length (L) = 640 ft change in Height (H) = 3 ft Tc = (L' /H) i0' 1128 = 8 92 min Flow for 2 year 6 hour Store (Qi) QPRE - (CPRE) x (lto) x (Area) = 2 20 cfs QP ST = (CPosT) x (tro) x (Area) 5 19 cfs CN = (98)(% imp) + (60)(l-% imp) 79 P = 3 30 in fo2yr 6 hr storm S = 1000/CN - 10 = 266 Depth (D)= [P{0 2)(S)]' / [P+(0 8)(S)I = 1 41 in Time to Peak Flow TP = [(43 5)(D)(Area)] / Q3Fg5T 24 50 mm Detention Pond Design Pond Sae Elevation ft ) Surface Area (sq R Normal Pool 31 50 7 229 Flood Pool 3250 8 615 To of Bank 3500 12 328 Bottom gf Pool 2550 139 Provided Storage Volume Vol = [(Normal pool SA + Flood Pool SA) / 21 x (F P elev - N P elev, ) 7 922 cu ft RECEIVED SEP 15 2006 Dxoa 06071pond % impervious = 0476 = 476% say 48 0% CME= 025 CPgsT = (% imp)( 95)+(1-% imp)(25) 059 li= 425 Whir Ira = 4 92 m/hr Flow for 10 year 6 hour Storm (Qra) QPRE _ (CPRE) x (In) x (Area) 2 55 cfs QP ST = (CP T) x (In) x (Area) 6 01 cfs myc i.eyaary iui I yeai awns CN = (98)(% imp) + (60)(1 % imp ) 79 P = 4 82 in for 10 yr 6 fir storm S = 1000/CN 10 = 266 Depth (D)= [P (0 2)(S)12 / [P+(0 8)(S)] = 2 65 in Time to Peak Flow TP= [(435)(D)(Area)]/010vosT 39 67 min State Surface Area Requirement at normal pool Pond side slopes = 3 1 Depth below N P= 6 ft SA/DA = 00258 (Chan for 90% TSS Removal for Wet Detention Pond without Vegetative Filter Required SA = (SA/DA) x (Total Drainage Area) 2 326 so ft State Volume Required for Storage of first 1 of runoff Rv = 05+ 009(% imp) = 0 478804 V= (Design minfall)(Rv)(Dramage Area) 1 CAROB 3598 cu ii%, lt 2, aQo yir SEAL c 17374 a •SONE cR.1, •OG 9/15/2006 Barefoot Square JWH Pond Calculations Pond Volume Bottom SA = 139 sq f . Normal Pod SA = 7 229 sq If Vol = [(N P SA + Bottom SA) / 21 x (N P el - Bottom el) 22103 cu ft Forte Required Volume Vol = 20% of storage volume 4 421 cu ft Outlet Structure Design Flow for 2-day drawdown for 1st 1 of stonnwater Q = Required Vol 1172 800 sec (2-days) 0 021 cfs R uued Area of Pi a for 2-day drawdown A= Q/[CdxSQRT(2xgxh)] Cd= 06 9= 322 ft/s2 h= IF P elev N P elev ) 2 = 05ft A = 00061 sq It Diameter of Pace for 2-dav, drawdown DIA = SQRT[(A x 4) / pi] 0 0882 ft 1 06 in 'Use 1 00 in diameter pipe Outlet Structure Check Using a 4 x 4' Basin Perimeter (L) = 16 It Q = CIA C= (% imp)(95)+(1 % imp)(25) = 059 1 = 4 92 in for a 25 yr Storm A = 2 07 Acres 601 cfs Q= Cwx Lx H' H= [Q/(Cwx L)]' Cw = 3 0 25 It Peak elevation - flood pool elevation + H 32 75 It Provided Volume Bottom SA = 552 sq ft Normal Pool SA = 1 981 sq it Vol = [(N P SA + Bottom SA) / 21 x IN P el - Bottom el ) 4 433 cu It Flow for 5-day drawdown for 1st 1 of stormwater Q = Required Vol / 432 000 sec (5-days) = 0 008 cfs Reouired Area of Pipe for 5-day drawdown A= Q/[Cdx SQRT(2xgxh)] Cd= 06 g= 322 ft/s' h= IF P elev N P elev) / 2 0 5 It A = 00024 sq ft Diameter of Pipe for 5-day drawdown DIA = SQRT[(A x 4) / pi] = 0 0558 ft.- 067 in 06071 06071pond 2 of 2 September 6, 2006 Stormwater Narrative Barefoot Square New Hanover County, NC TE 06071 Barefoot Square is a pre-existing commercial site of 2 07 acres One structure currently exists on site along with parking parking and access The existing impervious area is 21,122 sf The proposed expansion includes a 10,000 sf budding addition, 4,066 sf of concrete, and 7,773 sf of asphalt access brings the total impervious area to 42,961 sf The proposed stormwater pond is sized to state's 1" requirement and the county's 25-year pre -post requirement The pond is also checked for the 2-year, 10-year, 100-year, and 100-year spillway only Outflow will discharge through existing ditches to Ness Creek, classification C-SW RECEIVED SEP 15 2006 DWQ nROJ # Page 1 of 1 North Carolina Elaine F Marshall ® EPARTM E NT of THE Secretary SECRETARY of STATE PO Box 29622 Raleigh, NC 27626-0622 019)a07-2000 Corporations *Corporations Home °Important Notice *Corporations FAQ °Tobacco Manufacturers °Dissolution Reports *Non -Profit Reports *Verify Certification 0Onlme Annual Reports *KBBE B2B Annual Reports Links *Secretary Of State Home *Register for E-Procurement °Dept of Revenue Legislation *1999 Senate Bills *2001 Bill Summaries *Annual Reports 1997 *Corporations 1997 Search *By Corporate Name *For New Corporation *By Registered Agent Online Orders *Start An Order *New Payment Procedures Contact Us *Corporations Division *Secretary of State's web site Print *Printable Page Date 9/6/2006 Click here to View Document Filings I TPrint apre-populated Annual Report Form I Annual Report Count I File an Annual Report I Corporation Names Name Name Type NC Barefoot Flooring, Inc Legal Business Corporation Information SOSID 0594555 Status Current -Active Date Formed 6/15/2001 Citizenship Domesbc State of Inc NC Duration Perpetual Registered Agent Agent Name Registered Office Address Registered Mailing Address Principal Office Address Principal Mailing Address Stock James L Wilson 2901 Castle Hayne Road Castle Hayne NC 28429 2901 Castle Hayne Road Castle Hayne NC 28429 2901 Castle Hayne Road Castle Hayne NC 28429 311 Judges Road Unit 12 C Wilmington NC 28405 Class Shares No Par Value Par Value Common 1000 Yes N/A For questions or comments about the North Carolina Secretary of State's web site, please send e-mail to Webmaster http //www secretary state nc us/Corporations/Corp aspx?Pitemld=5346730 9/6/2006 Y � i CD-479 (50) Business Corporation 8805 North Carolina Annual Report Name of Business Corporation BAREFOOT FLOORING, INC Fiscal Year Ending 12/31/05 MontIvDayNeai Secretary of State ID Number 2116990 Nature of Business FLOORING SALES 6 INSTALLATION Registered Agent JAMES L WILSON Registered Office Nailing Address 2901 CASTLE HAYNE RD City CASTLE HAYNE Registered Office Street Address 2901 CASTLE HAYNE RD City CASTLE HAYNE Signature of New Registered Agent (Signature constitutes consent to the appointment) Principal Office Telephone Number (910) 772-1735 Principal Office Mailing Address 2901 CASTLE HAYNE RD City CASTLE HAYNE Principal Office Street Address 2901 CASTLE HAYNE RD Nat City CASTLE HAYNE ie i Name JAMES L WILSON Address 2901 CASTLE HAYNE RD City CASTLE HAYNE Name DIANNE P WILSON Address 2901 CASTLE HAYNE RD City CASTLE HAYNE Name Address City SOSID 0594555 Date Filed 3/6/2006 3 50 00 PM Elaine F Marshall North Carolina Secretary of State 2006 065 05348 State of Incorporation NORTH CAROLINA Federal Employer ID Number 56-2256837 State NC 28429 State NC 28429 Slate NC 28429 State NC 28429 Title PRESIDENT Stale NC ZIP 28429 Title SECRETARY -TREASURER State NC ZIP 28429 Title Stale ZIP Certification annual porn (Must completed by all Business Corporations) Xg�106 Signe ure (Form must be signed by an ottwer of cwporation) JAMES L WILSON PRESIDENT Typo or Print Name Title NCCZD501 12/18/05