Loading...
HomeMy WebLinkAboutSW8030734_HISTORICAL FILE_20101110STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW kZ?075� DOC TYPE El CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE /z/b YYYYMMDD in A , NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coleen H Sullins Governor Director November 10, 2010 Mr Henry Allen Wooten Hampstead Marine Storage, LLC 805 Robinwood St Burgaw, NC 28425 Subject NOTICE OF INSPECTION Hampstead Marine Storage Permit No SW8 030734 Pender County Dear Mr Wooten Dee Freeman Secretary On November 9, 2010, Division of Water Quality (DWQ) personnel of the Wilmington Regional Office inspected the Hampstead Marine Storage in Hampstead, Pender County to determine compliance with Stormwater Management Permit Number SW8 030734 issued on March 18, 2004 DWQ file review and site inspection revealed that the site is not compliant with the terms and conditions of this permit Please find a copy of the completed form entitled "Compliance Inspection Report" attached to this letter, which summarizes the findings of the recent inspection As indicated in the attached inspection report, the following deficiencies must be resolved 1 An engineer's certification of the stormwater system was not found in the file Permit condition (II Schedule of Compliance, No 6) requires 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 Any deviations must be noted on the Certification A certification form for the Hampstead Marine Storage is enclosed Please inform this Office in writing before December 15, 2010, of the specific actions that will be undertaken and the time frame that will be required to correct the deficiencies Failure to provide the requested information, when required, may initiate enforcement action including the assessment of civil penalties of up to $25,000 per day If a written plan of action is not submitted to this office by December 15, 2010 then DWQ staff will re -inspect the site and issue a Notice of Violation if the listed deficiencies have not been addressed Please be reminded that if any ownership or name change has occurred it is the permittee's responsibility to notify this office in writing If you have any questions please contact me at the Wilmington Regional Office, telephone number (910) 796-7215 Sincer , David Cox Environmental Senior Specialist Enclosure Compliance Inspection Report, Engineer Certification Form GDS1dwc S 1WQSISTORMWATERIINSPECT1030734 nov10 cc John Hennessy-NPS-ACOU, WiRO Files, Georgette Scott Wilmington Regional Office 127 Cardinal Drive Extension Wilmington North Carolina 28405 One Phone 910 796 7215 4 FAX 910 350 2004 4 Customer Service 1-877-623 6748 North Carolina Internet www ncwaterquality org Aaturally An Equal Opportunity) Affirmative Acton Employer OMM010 a sa AM CA201006200457 SOSFD 0730856 LIMITED LIABILITY COMPANY Date F11313 OQ PM Elaa ine F Marshal haall l ANNUAL REPORT North Carolina Secretary of State CA201006200457 NAME OF LIMITED LIABILITY COMPANY HAMPSTEAD MARINE STORAGE, LLC STATE OF INCORPORATION NC SECRETARY OF STATE L L C ID NUMBER 730856 FEDERAL EMPLOYER ID NUMBER Privacy Redaction NATURE OF BUSINESS PROPERTY RENTAL REGISTERED AGENT JOYCE H . WOOTEN REGISTERED OFFICE MAILING ADDRESS 805 ROBINWOOD STREET BURGAW NC 28425 REGISTERED OFFICE STREET ADDRESS 805 ROBINWOOD STREET BURGAW PENDER SIGNATURE OF THE NEW REGISTERED AGENT NC 28425 SIGNATURE CONSTITUTES CONSENT TO THE APPOINTMENT PRINCIPAL OFFICE TELEPHONE NUMBER 910 - 2 5 9- 5 6 7 3 PRINCIPAL OFFICE MAILING ADDRESS 805 ROBINWOOD STREET BURGAW NC 28425 PRINCIPAL OFFICE STREET ADDRESS 805 ROBINWOOD STREET BURGAW NC 28425 MANAGE RSIMEMBERSIORGANIZERS Name HENRY ALLEN WOOTEN Title MANAGING MEMBER Name JOYCE H . WOOTEN Title MANAGING MEMBER Name Title Address 805 ROBINWOOD STREET City BURGAW State NC Zip 28425 Address 805 ROBINWOOD STREET City BURGAW state NC Zip 28425 Address City State Zip CERTIFICATION OF ANNUAL REPORT MUST BE COMPLETED BY ALL LIMITED LIABILITY COMPANIES FO MUST BE SIGNED BY A MANAGERIMEMBEDATE &L �1 Al. -,le A. )i k)d0;ZeA) -- TYPE OR PRINT NAME TYPE OR PRIN TITLE ANNUAL REPORT FEE $200 MAIL TO Secretary of State a Corpomdons Divialon 0 Post Office Box 29525 0 Raleigh, NC 27626.0525 State Stormwater Management Systems Permit No SW8 030734 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 Mr Allen Wooten Hampstead Marine Storage Pender County FOR THE construction, operation and maintenance of an infiltration basin in compliance with the provisions of 15A NCAC 2H 1000 (hereafter referred to as the "stormwater rules') and the approved stormwater management plans and specifications and other supporting data as attached and on file with and approved by the Division of Water Quality and considered a part of this permit This permit shall be effective from the date of issuance until March 18, 2014, 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 on page 3 of this permit, the Project Data Sheet The stormwater control has been designed to handle the runoff from 93,207 square feet of impervious area This pond must be operated with a vegetated filter 3 The tract will be limited to the amount of built -upon area indicated on page 3 of this permit, and per approved plans 4 All stormwater collection and treatment systems must be located in either dedicated common areas or recorded easements The final plats for the project will be recorded showing all such required easements, in accordance with the approved plans 5 The runoff from all built -upon area within the permitted drainage area of this project must be directed into the permitted stormwater control system A permit modification must be submitted and approved prior to the construction of additional built -upon area from outside of the approved drainage area 2 0 State Stormwater Management Systems Permit No SW8 030734 DIVISION OF WATER QUALITY PROJECT DESIGN DATA SHEET Project Name Hampstead Marine Storage Permit Number SW8 030734 Location Pender County Applicant Mr Allen Wooten Mailing Address 8155 Malpass Corner Road Currie, NC 28435 Application Date Receiving Stream/River Basin Stream Index Number Classification of Water Body Drainage Area, acres Onsite, sq ft Offsite, sq f1 Total Impervious Surfaces, sq fl Pond Depth, feet Bottom Elevation, FMSL Bottom Surface Area, R2 Permitted Storage Volume, f13 Temporary Storage Elevation, FMSL Seasonal High Water Table Elev Type of Soil Expected Infiltration Rate Time to Draw Down March 18, 2004 Mill Creek (Betts Creek) / Cape Fear CPF 24 18-87-14 "SA HQW" 395 171,970 none 93,207 40 51 0 2,710 12,103 540 490 Loamy Sand 7 3 inches per hour 7 hours 9 State Stormwater Management Systems Permit No SW8 030734 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 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 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 The facilities shall be constructed as shown on the approved plans This permit shall become voidable unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data 6 Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, a certification must be received from an appropriate designer for the system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation Any deviations from the approved plans and specifications must be noted on the Certification A modification may be required for those deviations 7 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 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, or sale of 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 f Filling in, altering, or piping of any vegetative conveyance shown on the approved plan 4 State Stormwater Management Systems Permit No SW8 030734 9 The permittee shall submit final site layout and grading plans for any permitted future areas shown on the approved plans, prior to construction If the proposed BUA exceeds the amount permitted under this permit, a modification to the permit must be submitted and approved prior to construction 10 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 11 At least 30 days prior to the sale or lease of any portion of the property, the permittee shall notify DWQ and provide the name, mailing address and phone number of the purchaser or leasee An access/maintenance casement to the stormwater facilities shall be granted in favor of the permittee if access to the stormwater facilities will be restricted by the sale or lease of any portion of the property 12 The permittee must maintain compliance with the proposed built -upon area and ensure that the runoff from all the built -upon is directed into the permitted system 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 14 The permittee must maintain the current permitted drainage area No additional runoff from outside of the permitted drainage area boundary may enter the permitted stormwater facilities without first applying for and receiving a permit modification 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 pennittee 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) which have Jurisdiction 4 In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permrttee 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 State Stormwater Management Systems Permit No SW8 030734 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 any name, ownership or mailing address changes within 30 days Permit issued this the 18th day of March 2004 NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION Alan W Klimek, P E , Director Division of Water Quality By Authority of the Environmental Management Commission n State Stormwater Management Systems Permit No SW8 030734 Hampstead Marine Storage Stormwater Permit No SW8 030734 Pender 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 specification Signature Registration Number Date SEAL 7 State Stormwater Management Systems Permit No SW8 030734 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 drains to the system 4 The outletibypass structure elevations are per the approved plan 5 The outlet structure is located per the approved plans 6 Trash rack is provided on the outlet/bypass structure 7 All slopes are grassed with permanent vegetation 8 Vegetated slopes are no steeper than 3 1 9 The inlets are located per the approved plans and do not cause short-circuiting of the system 10 The permitted amounts of surface area and/or volume have been provided 11 Required drawdown devices are correctly sized per the approved plans 12 All required design depths are provided 13 All required parts of the system are provided, such as a vegetated shelf, and a forebay 14 The overall dimensions of the system, as shown on the approved plans, are provided cc NCDENR-DWQ Regional Office Pender County Building Inspections N. WALTON ENGINEERING _ March 9, 2004 Ms Laurie Munn NC DENR Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 28403 Re Stormwater Project No SW8 030734, Hampstead Marine Storage Dear Laurie, In reference to your fax dated December 23, 2003, Walton Engineering has addressed requests as follows 1 We have enclosed a "Drainage Area Delineation Map" 2 Details of the Infiltration Basin and the Vegetative Filter have been added to the enclosed plan 3 A completed copy of the Infiltration Basin Supplement has also been enclosed Also, we have been to coordination with the North Carolina Department of Transportation on this project We have had to revise the previously submitted plan in accordance with NCDOT Standards The driveway on NC Highway 210 has been moved from the original location to the location shown on the enclosed plan There was no changes to the plan that would constitute any revisions to the stormwater calculations If you have any questions, please contact me at 910-259-4800 Sincerely, Jason L Williams RECEIVED MAR 11 2004 nwQ PROD W Tel 910-2594800 PO Box 895, Biugaw, North Carolina, 28425 Fax 910-259-1779 r x e S rf i 1 i � ri,rl�f rr 1 r r f i ri 1 r i 1 � r 1 r r l WALToN ENGINEERING March 9, 2004 Justification Requirement Section M. E The system has been located in a drainage easement, however the easement has not been recorded at the time of this submittal Tel 910-259A800 PO Box 895, Burgaw, North Carohna, 29423 Fax 910-259-1779 _ y s 4 � � / r J-' r� , i f f r } ( I i 4 r r Cr � rll Sf� 4 k i 4 - t r `j FILE MODE — 995 MEMORYTX P 1 COMMUNICATION RESULT REPORT ( DEC 23 2003 11 49AM ) TTI NCDENR WIRO OPTION ADDRESS (GROUP) ----------- RESULT --------- 89102591779 OK P 6/6 REASON FOR ERROR E-1) HANG UP OR LINE FAIL E-3) NO ANSWER E-2) BUSY E-4) NO FACSIMILE CONNECTION 4 WA'111�1 Michael F Easley, Govemor t� Q Wilflam G Ross Jr, Secretary North Carolina Department of Environment and Natural Resources .i Alan W Kllmak, P E ,Dlraotor -� l]Ivlslon of Water Quality Coleen H Sullins, Deputy Director Dlvlalon of Water Qualrty FAX COVER SHEET Date: December 23, 2003 No. of Pages; 6 To: Jason Williams From: Laurie Munn Company: Walton Engineering Water Quality Section - Stormwater FAX #: 910.259.1779 FAX # 910-350 2004 Phone # 910-395-3900 DWQ Stormwvater Project Number: SWS 030734 Project Name: Hampstead Marine Storage MESSAGE: Jason, I have reviewed the additional information that you sent m on December 9, 2003. I have the following comments: 1. Please delineate the drainage area to the infiltration basin (you can do this on an S y2fs x I i" sheet of paper) W A T- Michael F Easley, Governor OF y e �G William G Ross Jr, Secretary `OCR North Carolina Department of Environment and Natural Resources D 7 Alan W Klimek PE Director Division of Water Quality Coleen H Sullins, Deputy Director Division of Water Quality FAX COVER SHEET Date: December 23, 2003 No. of Pages: 6 To: Jason Williams From: Laurie Munn Company: Walton Engineering Water Quality Section - Stormwater FAX 0: 910.259.1779 FAX # 910-350-2004 Phone # 910-395-3900 DWQ Stormwater Project Number: SW8 030734 Protect Name: Hampstead Marine Storage Jason, I have reviewed the additional information that you sent in on December 9, 2003 1 have the following comments 1 Please delineate the drainage area to the infiltration basin (you can do this on an 8 '/z" x I I" sheet of paper) 2 Please provide a detail of the basin and the vegetative filter on the plans I have included a copy of the details 3 Please complete the infiltration basin supplement Please call me with any questions Happy Holidays Laurie SIWQSISTORMWATIADDINF0120031030734 dec03 N C Division of Water Quality 127 Cardinal Drive Extension (910) 395-3900 Customer Service Wilmington Regional Office Wilmington, NC 28405 (910) 350-2004 Fax 1 800 623-7748 Mh� 90 A Rip Rap Energy Dzssapator oul 1 ht Piping 30' Flow Spreader Mechanism * 50' For SA Cass Waters # Width as required to provide non -erosive flow PLAN VEGETATED FILTER DETAIL Receiving Stream SECTION A -A 5-rolZAGE ELEV. = 14 05�— Elev. r' 14 `` aAND L Yt-R INFILTRATION :_BASIN r Permit No (to be provided by DWQ) State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM INFILTRATION BASIN SUPPLEMENT This form may be photocopied for use as an original DWn Stormwater Management Plan Review A complete stormwater management plan submittal includes'a stormwater management permit application, an infiltration basin supplement for each system, design calculations, soils report and plans and specifications showing all stormwater conveyances and system details I. PROJECT INFORMATION Project Name Contact Person This worksheet applies to Basin No (as Wenrifred on plans) Phone Number in Drainage Area (from Form SWU-101) II. DESIGN INFORMATION - Attach supporting calculations/documentation The soils report must be based upon an actual field investigation and soil borings County soil maps are not an acceptable source of soils information All elevations shall be in feet mean sea level (fmsl) Soils Report Summary Soil Type Infiltration Rate m/hr or cf/hr/sf (circle appropriate units) SHWT Elevation fmsl (Seasonal High Water Table elevation) Basin Design Parameters Design Storm Design Volume Drawdown Time Basin Dimensions ` Basin Size Basin Volume Provided Basin Elevations Bottom Elevation Storage Elevation Top Elevation inch (15 inch eventfor SA waters, 1 inch event for others) cf days ft x cf fmsl fmsl fmsl ft = sq ft (bottom dimensions) Form SWU-103 Rev 3 99 Page 1 of 3 Illl, REQUIRED ITEMS CHECKLIST The following checklist outlines design requirements per the Stormwater Best Management Practices Manual (N C Department of Environment, Health and Natural Resources, February 1999) and Administrative Code Section 15 A NCAC 2H 1008 Initial in the space provided to indicate that the following design requirements have been met and supporting documentation is attached If the applicant has designated an agent in the Stormwater Management Permit Application Form, the agent may initial below Attach ,justification if a requirement has not been met Applicants Initials a System is located 50 feet from class SA waters and 30 feet from other surface waters b System is located at least 100 feet from water supply wells c Bottom of system is at least 2 feet above the seasonal high water table d Bottom of the system is 3 feet above any bedrock or impervious soil horizon e System is not sited on or in fill material or DWQ approval has been obtained f System is located in a recorded drainage easement for the purposes of operation and maintenance and has recorded access easements to the nearest public nght-of-way g Drainage area for the device is less than 5 acres h Soils have a minimum hydraulic conductivity of 0 52 inches per hour and soils report is attached i System captures and infiltrates the runoff from the first 10 inch of rainfall (1 5 inch event for areas draining to SA waters ) Design volume and infiltration calculations attached 1 System is sized to take into account the runoff at the ultimate built -out potential from all surfaces draining to the system, including any off -site drainage Calculations attached k All side slopes stabilized with vegetated cover are no steeper than 3 1 (H V) I A pretreatment device such as a catch basin, grease trap, filter strip, grassed swale or sediment trap is provided m Bottom of the device is covered with a layer of clean sand to an average depth of 4 inches or dense vegetative cover is provided t n Vegetated filter is provided for overflow and detail is shown on plans (Required minimum length is 50 feet for SA waters, 30 feet for other waters) o Flow distribution mechanism within the basin is provided 0 p A benchmark is provided to determine the sediment accumulation in the pretreatment device q Runoff in excess of the design volume bypasses off-line systems (bypass detail provided) r System is designed to draw down the design storage volume to the proposed bottom elevation under seasonal high water conditions within five days A soils report and all pertinent draw -down calculations are attached s Plans ensure that the installed system will meet design specifications (constructed or restored) upon initial operation once the project is complete and the entire drainage area is stabilized 41, 11. Form SWU-103 Rev 3 99 , Page 2 of 3 IV. INFILTRATION BASIN OPERATION AND MAINTENANCE AGREEMENT 1 After every runoff producing rainfall event and at least monthly inspect the infiltration system for erosion, trash accumulation, vegetative cover, and general condition 2 Repair eroded areas immediately, re -seed as necessary to maintain adequate vegetative cover, mow vegetated cover to maintain a maximum height of six inches, and remove trash as needed 3 After every runoff producing rainfall event and at least monthly inspect the bypass, inflow and overflow structures for blockage and deterioration Remove any blockage and repair the structure to approved design specifications 4 Remove accumulated sediment from the pretreatment system and infiltration basin annually or when depth in the pretreatment unit is reduced to 75% of the original design depth The system shall be restored to the original design depth without over -excavating Over -excavating may cause the required water table separation to be reduced and may compromise the ability of the system to perform as designed Removed sediment shall be disposed of in an appropriate manner and shall not be handled in a manner that will adversely impact water quality (i c stockpiling near a stormwater treatment device or stream, etc ) A benchmark shall,be established in the pretreatment unit The benchmark will document the original design depth so that accurate sediment accumulation readings can be taken The measuring device used to determine the depth at the benchmark shall be such that it will give an accurate depth reading and not readily penetrate into accumulated sediments " When the design depth reads feet in the pretreatment unit, the sediment shall be removed from both the pretreatment unit and the infiltration basin 5 If the Division determines that the system is failing, the system will immediately be repaired to original design specifications If the system cannot be repaired to perform its design function, other stormwater control devices as allowed by NCAC 2H 1000 must be designed, approved and constructed r I acknowledge and agree by my signature below that I am responsible for the performance of the five 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 Print Name and Title Address Phone Date Signature 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 do hereby certify that a Notary Public for the State of County of personally appeared before me this day of . and acknowledge the due execution of the forgoing infiltration basin maintenance requirements Witness my hand and official seat, SEAL My commission expires Form SWU-103 Rev 3 99 Page 3 of 3 WALToNENGMEPaNG, December 9, 2003 Ms Laurie Munn NC DENR Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 28403 Re Stormwater Project No SW8 030734, Hampstead Marine Storage Dear Laurie, In reference to your letter dated September 5, 2003, Request for Additional Information, Walton Engineering has addressed requests as follows I We have enclosed a revised set of plans and calculations to reflect the stormwater control systems to be infiltration systems designed to control the runoff from all surfaces generated by one and one-half inches of rainfall 2 Vincent Lewis, the State Soil Scientist, has investigated the site A soil evaluation was performed by Land Management Group, Inc in accordance with Mr Lewis' site investigation (See enclosed report from Land Management Group, Inc ) 3 A note has been added to the revised plan indicating that there are no wetlands on the subject property 4 A note has been added to the revised plan stating all roof drains must be directed so as to be picked up by the infiltration basin 5 The dimension and bearing for the western property line has been added to the revised plan 6 A detail of the swale has been included on the enclosed plan The enclosed information will replace and/or be in addition to the previously submitted information If you have any questions, please contact me at 910-259-4800 ncerely, Jason L Williams Tel 910-259A800 PO Box 895, Burgaw, North Garohna, 28425 Fax 910-259-1779 El J '1 wtir 2 Al trip 5m .25n Vdii my&n, . Ao A Child-na 284o2 d' 9Yo-45,E-0001 Z&d 9? A41d .' � October 20, 2003 Jason Williams Walton Engineering P O Box 895 Burgaw, NC 28425 Reference Soils evaluation for the Hampstead Manna proposed infiltration basins Dear Jason, Y.i& ;(d s8o5 . *1d=,Pg&n, ✓t'f6 28403 On October 14, 2003, Land Management Group, Inc completed the soil characterization for a proposed infiltration basins for the Hampstead Manna project, as you requested The area evaluated was shown to me onsite by yourself and is represented on the enclosed Bore Hole Location Map The following is a report of my findings with respect to soil profile description, depth to seasonal high water table, and soil infiltration rate There are a total of three borings which are located within the proposed area I was unable to auger through the gravel on the soil surface in the center of the proposed area The borings made should give an accurate description of the proposed basin area There were some limiting infiltration rates at the deeper depths The seasonal high water tables ranged from 30" to >60" throughout the proposed pond area Please do not hesitate to contact me at (910)452-0001 or (910)471-0509 if you have any questions about this report Sincerely, _ __ _ _ _ �� 1 �J� � J Tom Gulley r 44 e ` �c ti 2 0 BORE LOCATIONS SHOWN IN RED Land Management Group, Inc. Hampstead Marina Emrironmental Consultants Wilmington, N C 7 7 SCALE 9" = 50' Bore Hole Location Map Hampstead Manna Hampstead, NC October 20, 2003 Site lnfilt ID # Description Rate XI 0-6" clay loam, msbk, 2 5YR4/6 0 5-1 m/hr 640" med sand, single grained, loose, 1 OYR7/ 1,1 OYR8/ 1,1 OYR6/6 with IOYR6/1 mottles @ 30" >10 m/hr 4048" fine sandy loam, granular, IG2 5/N, >8%orgarucs 1-2 in/hr X2 0-6" sand/loamy sand, single grained, 501/o gravel 6-10 m/hr 6-20" loamy fine sand, single grained, 2 5Y5/1 4-6 in/hr 20-24" loamy fine sand, granular, 2 5Y5/3 4-6 m/hr 24--48" med sand, single grained, IOYR7/1, l OYR8/ 1, 10YR6/4 > 10 m/hr 48-60" clay loam, 2wsbk, 7 5Y5/8 0 5-1 m/hr X3 0-10" sand/loamy sand, single grained, 50% gravel 6-10 rn/hr 10-20" loamy fine sand, single grained, 2 5Y5/1 4-6 uAr 20-55" med sand, single grained, 10YR7/1, 10YR8/1, IOYR6/4 > 10 in/hr 55-60" sandy clay loam, 2msbk, 10YR6/4 1-2 in/hr Hampstead Manna Estimated High Watertable 30" >60" .t Observed Water 36" >60" >6011 5Nrx_Y_7lUllVg Iros7vA 1 L_LL - — LL " �I �b- 1 I L_LL I� I I L LLL I LL LI - - I L I L �� LLLLL -L - -LLLL L r LL I L� L II LL L L L L '_ I_L�_ f_L I kk_ L!_I_ L L_LL'_ i _ _ I l -LLL_ ! I _1—LLL L_ —L LL _.L_L i L- ! �Ll I L€ L _! _LLL_L I _L I I i L L_ LLL__L L _LJ_ �_L I l€ I_�_ CII [I II L_ l �-r LLL L �L L LL_L�CL_Ll_� _L I L _l_i LLL_ L L_l l r, " L— L _L L! L+ L L_ L ,_L I L L _� LL I_- I L_ L L� LL of f_ r_ I L— — I— L �u L l_ !� L1_L! L �� � l _ L I� � I _ € I �' 1 L__ ' s i Ll L L L[! _L II L I _� f T� L L L_ Lt__LL LLL L►_ LL I - L_':LLB I L!_ _1_ L_L LL _��_ I L { r— I L_ } l � ►! L� I LL_L L ``LL —L!_1 ! 1 �_I � L_ LL L__1_I —LL ' L_' �L I�I L _ _LL_L _ L L L �_l l I i_ I �_ _ ILL L N �l L �, I_ I r_��_L._�_ L of _� I_I i r 1 iL �,� I l I li III y � If F§Mf U-T11IIJ' )Vj MO T 7Vfl '_ . lll�. 1�11 1- L - - - V G / f - I -- r - -L _ _ FT f k l l- I _ f I I - - I I II - -1 L � .� T _ ' - , I a __� EI E_ _ it } I _LL_�L_L _�_L_ - L_t_L L-f--l- _I -L_L --I- - -- - - L ► II L I L� -L II _C-L_I_ __ __I _L I-L- L_ I -1 _L� f L Ifl -I_� f - -L_ I l I III �II III II � II 03/18/2004 15 41 9102591779 WALTON ENGINEERING PAGE 02 ' ''- # - - - fie, IINA�f,e 1►�� 'I�'n�il� ��;o, I'�'�,�� �lo��,IIII, 1 1 1 1 �- II �1V ��� 63f �I�I — -I - � T_ 11 1 I 1_ T� or l .; I I - ; k r7tr- }} < I C. 1 ! = T,r ALTON IIV�ExrNC� - !i _ I ------- -_ _ _ -�_ J_ L_ I ► L - L-L 1 o _ Iv�CC L -CLCL! I C---CL LI_ 1- I _C �- CI- -i__L- EL F- LL l-LL CCU= -�-_ LCL C f- LI AL I L_LL L L CL L �-�C- II _��LL L L LCI-!CC _`_L_I _CCC -L_ _ LC L_ 1_ _ lL_I _L_ �L�L _LI_ L � LC U _L_r_ _ _C sil_ 11 _ C _`I- L - L _ L _ C�_[ _ L CL L I -L�-C� _J_ L_ C CLC _ ` �__ Ci�l_LLLL__LLL _�_ I LL I -CC+_ I_L T __Cl I _ I _L C �! L CCLCI_L -� -i E '_LL _I-- - = _ CC _ � r= - _ -C -CCr-� - _LI �_ _L_ _ l _ _ rl C , _ LLCLI__ LL CI _L ` _L -I L ' ALL = L C LL L_ L-� _LAL C _ CC LL_1_l_Lr_ 1_ __L_ =1 j J _CC' - _- -L II --� j-�-- l f- _C� > LI LLL L LL _ L - - ___ C = _ -- __- -- _ - Cl _ - s r� rIYs Sediment Basin Design (rectangular basin with 2 1 sides) Project Hampstead Manne Storage Date 6/23/2003 Basin No 1 Drainage Area ID Max Disturbed Area (s f) 171970 Max Disturbed Area (acJ 3 948 0 000 0 000 Peak Runoff (cfs) 1659 Length (ft) 130 Width (ft) 40 Ave Water Depth (ft) 3 Min Basin Volume (c f) 7,106 0 0 Actual Basin Volume (c f } 12,540 0 0 Min Basin Surface Area s f) 7,227 0 0 Actual Basin Surface Area (s f) 5,200 0 0 Outlet Type, Rock Dam Notes 1) Basin surface area designed for 75% sediment trap efficiency using the following eqn S A = 0 01 " Peak Inflow Rate (cfs)"43,560 2} Design basin volume based on a 1,800 f A3 per acre of disturbed area (min recommended volume) per NC Sediment Pollution Control Commision 3) Actual basin volume based on 21 sideslopes for a trapezoidal shaped basin bl" f , j i t1� s [� y1 lr i✓ ��"� $ i .irk it y4 [ fii r4 WALToNENaiNEE&ING September 29, 2003 Ms Laurie Munn NC DENR Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 28403 Re Stormwater Project No SW8 030734, Hampstead Marine Storage Dear Laurie, In reference to No 1 of the letter for the Request for Additional Information, Mark and I have thoroughly researched and physically inspected the area within '/Z mile of the subject site All tributaries surrounding the subject site were non -tidal freshwater tributaries, this includes the receiving streams and drainage tributaries All streams and tributaries ultimately lead to Class SA waters, however, we have found the Class SA waters are 0 7 miles outside the '/Z mile boundary I have enclosed maps to support our findings, which include the site location relative to the discharge area, nearest SA waters, etc We would still like to set up a time for Vincent Lewis to inspect the site, once we have determined the site to be infiltration or wet detention If you have any questions, please contact me at 910-259-4800 Sincerely, Jason L Williams Tel 910-259-4800 PO Box 895, Burgaw, North Carolina, 28425 Fax 910-259-1779 Y \ \ A iIA� \ \ \ \ Q � \ \ \ \ \ d/ \ d- \ \ y \ au I 1 Ncares SA # Wkfer � 541 c134 LV kZ A 1 0 oel- 0 C f� R�A V-) -Zq,b3 w•�w.. � m i wi�u�wniw� ���� 21 00ft 7 tead or q QA 3 l�1 eon r Cst W �✓ t r' r ti r 02003 Ma pq u$'t m, ! no.; 0 2003 G DT, i no G r&at Oak a r S U b, ff l `q �T o D sca�e D s r l� PAU IWA 4" f ZOI.All M� F '" �•wN—m '"`d ¢e "�� tn"���1Z sf fix#` �` j�%•'3'r �'rw ` ' I �� i 1 ��� � pro i s >I 'Sp. i {I �.✓�s }4 d�f.'�i ' Y �+� r"�+, �►, =^ .rn � _� I * � ' +�';'�. ` '�"• f� � + � t�a7�'� ���rrM; 4 � b I � lh 4. 'r U rh3 . e v. Ii �'e�(i�k 3 D TopoQuads Copyright 019" DeLorme Yarmouth, ME 04096 Source Data USGS 650 R Scale 1 16,000 Detail 134 Datum WGS84 4 .� � . ,. -r � .. - m. _ 1 c.'' � ' ., r i r i � r � � � i � F 1 ' ' � � � F � { _ � 1 � t " 1 i � , r ,. _ �.�.__._ ._... - - - - - - � ..- - - -A � --- .� - -- - _ _ � � i .' I J .. t 3 �� , rF 1 ,t i � `,, .- S � E L {1 ♦ ' 1 � 4 r ! �' 1 V i ' 1 � � 1 I I `` � � � � i > � � 1 1 j 1 � 3 D TopoQuadx Copyright t 1999 DeLorme Yarmouth, ME W96 Source Data USGS 1 ft Scale 1 14,400 Detail 134 Datum WGS84 f � , I, � e I � � � � f � ' t t � I � i � � � i ] � � � �' F 1 ..� ,. � � r r .. .. • b n.1 s� � .. s� .. _. ♦ e s w 'i�.-.rj_ i r n i„ r4 .. � a b4 � � � r � � i � 1 � � e I 1 `y s �� � i 's � i � ' F � � r � � f i e s i i � 1 I � ' ' �A t 1 � � � � i � � i � � � 9F i I � � I � � , � `I t s r * 1 Y I I � � � r . ye 1 r ' w _ r � I � ! i � I � i— - - - - -- � _�- -_� _�_.. - � i --_� - - - f i ! e � i F f } i k I i I i � �, i � � j ! i ' �i OF WArF�4 Michael F Easley Governor O� Q� William G Ross Jr Secretary � North Carolina Department of Environment and Natural Resources U�— Alan W Klimek P E Director Division of Water quality Coleen H Sullins, Deputy Director Division of Water Quality September 5, 2003 Mr Allen Wooten 8155 Malpass Corner Road Currie, NC 28435 Subject REQUEST FOR ADDITIONAL INFORMATION Stormwater Project No SW8 030734 Hampstead Marine Storage Pender County Dear Mr Wooten The Wilmington Regional Office received a Stormwater Management Permit Application for Hampstead Marine Storage on July 31, 2003 A preliminary review of that information has determined that the application is not complete The following information is needed to continue the stormwater review It appears that your site is within % miles and draining to SA waters Accordmg to 15A NCAC 2H 1000, state stormwater rules, the stormwater control systems must be infiltration systems designed to control the runoff from all surfaces generated by one and one-half inches of rainfall Please revise your plans and application to reflect this requirement I did not complete a full review of the plans because the layout may change, but below are listed some of the items that the plans must contain which are not present in the current submittal Also, I have included some information on infiltration system design in the copy to the engineer 2 Please contact me to set up a time for Vincent Lewis, State Soils Scientist, to do an on - site investigation Please either delineate all wetlands on site, disturbed or undisturbed, or note on the plans that none exist 4 Please add a note to the plans that all roof drains must be directed so as to be picked up by the basin Please add the dimension and bearing for the western property line 6 Please provide a detail of the swale Please note that this request for additional information is to response to a preliminary review The requested information should be received by this Office prior to October 5, 2003, or the application will be returned as incomplete The return of a project will necessitate resubmittal of all required items, including the application fee N C Division of Water Quality 127 Cardinal Drive Extension (910) 395-3900 Customer Service d Wilmington Regional Office Wilmington, NC 28405 (910) 350-2004 Fax 1 800 623-7748 R 11ENOR Mr Allen Wooten September 5, 2003 Stormwater Project No SW8 030734 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 at 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 the receipt of a completed application to issue the permit. The construction of any impervious surfaces, other than a construction entrance under an approved Sedimentation 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 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 feel free to call me at (910) 395-3900 Sincerely, '�e� a/La� Laurie Munn Environmental Engineer RSS/ Ism S1WQSISTORMWATIADDINF0120031030734 sept03 doe cc Laurie Munn Mark Walton