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HomeMy WebLinkAboutSW8061108_HISTORICAL FILE_20190313STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW ea2 DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS P� HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE U` �5L3 YYYYMMDD STATE OF NORTH CAROLINA Department of Environmental Quality 127 Cardinal Drive Extension Wilmington, North Carolina 28405 (910) 796-7215 FILE ACCESS RECORD DEQ SECTION I�% , REVIEW TIME / DATEy 3 I 1 NAME m1A& 4- A E, 6Kj V _ EMAIL REPRESENTING e C- C', _ _ PHONE Guidelines for Access The staff of Wilmington Regional Office is dedicated to making public records in our custody readily available to the public for review and copying We also have the responsibility to the public to safeguard these records and to carry out our day-to-day program obligations Please read carefully the following guidelines signing the form I Due to the large public demand for file access, we request that you call at least a day in advance to schedule an appointment to review the files Appomtments will be scheduled between 9 00am and 3 00 m Viewing time ends at 4 45pm Anyone arriving without an appointment may view the files_ to the extent that time and staff supervision is available, 2 You must specify files you want to review by facihty name The number of files that you may review at one time will be limited to five You may make copies of a file when the copier is not in use by the staff and if time permits Cost per copy is $ 05 cents Payment maybe made by check, money order, or cash at the reception desk 4 FILES MUST BE KEPT IN ORDER YOU FOUND THEM Files may not be taken from the office To remove, alter, deface, mutilate, or destroy material in one of these files is a misdemeanor for which you can be fined up to $500 00 No briefcases, large totes, etc are permitted in the file review area 5 Necessary large plan copies can be scheduled with Cameron Weaver@ncdear gov 919-796-7475 for a later date/time at an offsite location at your expense Large plan copies needed should be attached on top of the file Allways Graphics can be contacted to set up payment options Written Questions may be left with this completed form and a staff member wiR be in contact with you IF you provide your contact information where indicated above. 6 In accordance with General Statue 25-3-512, a $25 00 processing fee will be charged and collected for checks on which payment has been refused FACILITY NAME COUNTY 5A ) O C) )_ c ! - -AJ �r 4 5 x. A�Q5fit: kv4e '. 4vm of r�i �, r 3 Ll /v o Signature Knd Name of t"r VBusiness Date Time In Time Out COPIES MADE PAID, ZS INVOICE 0 /ADM/Shared/File Review Access Form rev 2018 O�O� W A r�9Q O 'C March 20, 2007 Archie McGirt, President Monkey Junction Mini Storage, Inc 5044 Carolina Beach Road Wilmington, NC 28412 Subject Approved Plan Revision IVIJ Self Storage - Airport Stormwater Project No SW8 061108 New Hanover County Dear Mr McGirt Mu.hael r Easley, Go,�emoi Wilham G Ross Jr, Secretary North Carolina Department of Environment and Natural Resources Alan W Klimek P F Director Division of Watt,r Quality On January 11, 2007, the Wilmington Regional Office received a plan revision for Stormwater Management Permit Number SW8 061108 The revisions include reducing the total amount of built -upon area from 194,900 ft2 to 178,910 ftZ The pond design, as approved on December 18, 2006, is not proposed to be changed in any way by this revision It has been determined that a formal permit modification is not required for the proposed changes We are forwarding you an approved copy of the revised plans for your files Please replace the old approved plan sheets with the new ones Please be aware that all terms and conditions of the permit issued on December 18, 2006, remain in full force and effect Please also understand that the approval of this revision to the approved plans for the subject State Stormwater Permit is done on a case -by -case basis Any other changes to this project must be approved through this Office prior to construction The issuance of this plan revision does not preclude the permittee from complying with all other applicable statutes, rules, regulations or ordinances which may have jurisdiction over the proposed activity, and obtaining a permit or approval prior to construction If you have any questions concerning this matter, please do not hesitate to call me at (910) 796-7335 Sincerely, Linda Lewis Environmental Engineer III ENBlarl S 1WQSISTORMWATERIPERMIT1061108PR mar07 cc Barry Guise, P E , ESP Associates Beth Wetherill, New Hanover County Engineering City of Wilmington Development Services Tony Roberts, New Hanover County Building Inspections Linda Lewis Wilmington Regional Office `Central Files Nees h Carol ma Yaturrrlly North Carolina Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 28405 Phone (910) 796 7215 Customer Service Wilmington Regional Office Internet www ncwatt,rquahly org Fax (910) 350-2004 1 877 623 6748 An Equal Opportunity/Affirmative Action Employer— 50% Recycledll G% Post Consumer Paper ESP Associates, P.A. engineering • surveying • planning January 10, 2007 Ms Linda Lewis, Environmental Engineer NC DENR Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 28405-3845 Re State Stormwater Plan Revision Submittal Stormwater Permit No SW8 061108 MJ Self Storage - Airport New Hanover County, NC ESP Project No UF10 400 Dear Ms Lewis fl'�� BY Enclosed are two (2) sets of revised plans for the subject project, one (1) drainage area basin delineation plan, one (1) set of revised calculations, and a copy of the stormwater narrative Please review this information for approval and contact us with any questions or comments you may have Thank you for your assistance on this project Sincerely, ESP ASSOCIATES, P.A. /Mdwk t 0-v./ Monica V Loughlin, El Enclosures cc Archie McGirt 2120 8 Capital Drive Wilmington NC 28405 (910) 313 6648 Fax (910) 313 6823 www espassociates cum STORMWATER & EROSION CONTROL CALCULATIONS MJ SELF STORAGE - AIRPORT NEW HANOVER COUNTY, NORTH CAROLINA For Archie McGirt, President Monkey Junction Mini Storage, Inc P O Box 685 Wilmington, NC 28480 (910) 612-0868 H C A'R0�/ 2•'9 r . •:`GINS;4-'A, � /0 IRI,Gv��\\\ q-2-i a6 September 25, 2006 Prepared by ESP ASSOCIATES, P.A. 2120-B Capital Drive Wilmington, North Carolina 28405 (910) 313-6648 (910) 313-6823 (Fax) ESP Project # UF10 400 T RECEIVED JAN 11 2007 WQ # Sc uD(o 1 /0 $ } r 1/10/2007 MVL Total Drainage Area sq ft acres 230 185 528 MJ Self Storage - Airport Stormwater Calculations Pervious Area sq ft acres 51 275 1 18 Impervious Area Land Use sq ft acres buildings 116,210 267 asphalt 61 000 140 concrete 1,700 004 future 000 Total 178,910 411 % Impervious = 1 77 7% say 78 0% State Surface Area Requirement at normal pool Pond side slopes = 3 1 Depth below N P= 4 ft SAMA = 00506 Chart for 85% TSS Removal for Pond wl Veg Filter Required SA = (SA1DA) x (Total Drainage Area) = 11 647 sq ft State Volume Requirement for Storage of first 1" runoff Vol = (pery area•0 2)+(impery area'0 9)'1 *(43560/12) 14,273 cu ft Elev (ft) Surf Area (sq ft ) Inc Store (cu ft) Cum Store (cu ft) 1000 12,800 0 0 11 00 14 400 13,600 13,600 11 20 14,700 2 910 16,510 1200 16,000 12 280 28 790 1300 17 700 16,850 45,640 1400 19,500 18 600 64,240 Pond Size Elevation (ft) Surface Area (sq ft ) Normal Pool 1000 12,800 HWL 11 20 14,700 Top of Bank 1400 1 19,500 Bottom of Pool 600 7,000 Total Provided Storage Volume Vol = ((NP SA + HWL SA) 12] " (HWL - NP elev) 16 510 cu ft Pond Volume Bottom SA = 7 000 sq ft Normal Pool SA = 12,800 sq ft Vol =„ [(NP SA + Bottom SA) 12] x (NP at - Bottom el ) = 39,600 cu ft CPRE = 025 CPos-r = (% Imp )( 95)+(1-% imp )( 25) — 080 12 = 4 50 inlhr 110 = 7 00 In1hr 125 = 8 05 In1hr Flow for 2 year 24 hour Storm (Q2) QPRE (CPRE) x (12) x (Area) = 5 94 cfs QPOST = (CPosT) x (12) x (Area) 19 02 cfs Flow for 10 year, 24 hour Storm (010) QPRE` (CPRE) x (110) x (Area) 9 25 cfs QPOST = (CPOST) x (110) x (Area) 29 59 cfs Flow for 25 year, 24 hour Storm (Q25) QPRE= (CPRE) x (125) x (Area) = 10 63 cfs QPosT = (CPosT) x (125) x (Area) — 34 03 cfs UF10 Pond As 1 of 2 Y1 % 1/10/2007 MJ Self Storage - Airport MVL Stormwater Calculations Foreba Required Volume Vol = 20% of storage volume 7 920 cu ft Elev (ft) Surf Area (sq ft ) Inc Store (cu ft) Cum Store (cu ft 11000 3,720 0 0 900 2,950 3,335 3,335 800 2,260 2 605 5,940 700 1,650 1,955 7 895 Provided Volume Bottom Elevation = 700 It Bottom SA = 1 650 sq ft Normal Pool Elev = 1000 ft NP SA = 3,720 ft Vol = [(NP SA + Bottom SA) / 2] x (NP el - Bottom el ) 7 895 cu ft depth = 3 00 It Outlet Structure Desion Flow for 2-day drawdown for 1 st 1 of stormwater, Q = Required Vol 1172 800 sec (2-days) = 0 083 cfs Reoulred Area of Pine for 2-dav drawdown A= QI[CdxSQRT(2xgxh)] Cd= 06 g = 32 2 ft /sz h= (FP el-NPat) /2 06ft A= 00221 sq ft Diameter of PiDe for 2-dav drawdown DIA SQRT[(A x 4) / pi] 10 1679 ft 2 02 in Use 2 00 in orifice Outlet Structure Check Using a 4' x 4' Basin, Perimeter L = 16 ft 0 = CIA C = (% Imp )( 95) + (1-% Imp )( 25) 080 1 = 7 00 In for a 10 yr Storm A = 5 28 Acres 2959 cfs Q= CwxLxH' H = [Q I (Cw x L)]u' Cw = 3 072 R Peak elevation = flood pool el + H 11 92 ft UF10 Pond xIs 2 of 2 UF10-Pond Type 11124-hr 2 Yr Rarnfall=4 50" Prepared by {enter your company name here} Page 4 HydroCAD® 8 00 s/n 003281 © 2006 HydroCAD Software Solutions LLC 1/10/2007 Volume Invert Avail Storage Storage Description #1 1000, 64,240 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf Area Inc Store Cum Store (feet) (sq-ft)—(cubic-feet) (cubic -feet) 1000 12,800 0 0 1100 14,400 13,600 13,600 11 20 14,700 2,910 16,510 1200 16,000 12,280 28,790 1300 17,700 16,850 45,640 1400 19,500 18,600 64,240 Device Routing Invert Outlet Devices #1 Primary 8 70' 24.0" x 30.0' long Culvert RCP, square edge headwall, Ke= 0 500 Outlet Invert= 8 50' S= 0 0067 7' Cc= 0 900 n= 0 012 Concrete pipe, finished #2 Device 1 10 00' 2.0" Vert. Orifice/Grate C= 0 600 #3 Device 1 11 20' 2.26' W x 0 26' H Vert. Orifice/Grate X 3.00 C= 0 600 #4 Device 1 13 00' 16.0' long Sharp -Crested Rectangular Weir 0 End Contraction(s) 4 0' Crest Height #5 Primary 13 50' 6.0' long x 0.6' breadth Broad -Crested Rectangular Weir Head (feet) 0 20 0 40 0 60 0 80 100 Coef (English) 2 80 2 92 3 08 3 30 3 32 Primary OutFlow Max=6 46 cfs @ 12 46 hrs HW=11 93' (Free Discharge) 123_Oriflce/Grate ulvert (Passes 6 46 cfs of 22 36 cfs potential flow) =0riflcefGrate (Orifice Controls 0 14 cfs @ 6 55 fps) (Orifice Controls 6 31 cfs @ 3 74 fps) harp -Crested Rectangular Weir ( Controls 0 00 cfs) -Broad-Crested Rectangular Weir ( Controls 0 00 cfs) .` STORMWATER SYSTEM NARRATIVE MJ SELF STORAGE -AIRPORT NEW HANOVER COUNTY, NORTH CAROLINA For Archie McGirt, President Monkey Junction Mini Storage, Inc P O Box 685 Wilmington, NC 28480 (910) 612-0868 0HhCARo�ii�� 17 8L ! RECEIVED January 10, 2007 Prepared by ESP ASSOCIATES, P.A. 2120-B Capital Drive Wilmington, North Carolina 28405 (910) 313-6648 (910) 313-6823 (Fax) ESP Project # UF10 400 �lN IM 11 2007 -ROJ# �Gv�0001/0S 4 NARRATIVE SITE DESCRIPTION The site is a 7 02-acre tract owned by the developer The tract is bounded by North 23d Street (SR 1302) to the west, industrial/commercial uses to the north, Wilmington International Airport to the east and Smith Creek to the south The site has young growth forest, with moderate vegetated areas The site is gently rolling sandy sods (Leon, Seagate, Doravan) with poorly defined drainage patterns All runoff from the site drains to Smith Creek (C-Sw) and the Cape Fear River There are 1 01 acres of 404 wetlands, 0 18 acres of which are to be filled, and 0 21 acres of isolated non jurisdictional wetlands to be filled located in the proposed project area PROJECT DESCRIPTION The protect is new development consisting of clearing, grading, and construction of a self storage facility with asphalt parking and access, stormwater management system and utilities previously permitted as a high density stormwater protect The DENR permit number is SW8 061108 and was issued on December 19, 2006 and the New Hanover County permit number is 222-12/12/06 and was issued on December 12, 2006 The site layout has been revised resulting in a net reduction of impervious area of 15,990 square feet The disturbed area for these improvements remains at 6 6 acres Design impervious for the entire site has been reduced from 85% to 78% A revision to the erosion control permit and zoning permit will be required from New Hanover County Plan revisions to the stormwater management permits will be required from the county and state A driveway permit is still required from NCDOT Construction is scheduled to begin as soon as all permits and approvals are obtained STORMWATER MANAGEMENT MEASURES The site drainage area is 5 28 acres The site is proposed as high density, with a proposed maximum impervious surface of 78% The site will be developed under the high -density guidelines using one wet detention basin with 85% TSS removal and a vegetated filter for treatment There is no direct discharge from impervious surfaces to a watercourse The grading contractor and developer will provide maintenance during construction The developer will provide maintenance after completion State Stormwater Management Systems Permit No SW8 061108 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 Archie McGtrt and Monkey Junction Mint Storage, Inc MJ Self Storage - Airport 2312 N 23ro St 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 December 18, 2016, 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 16 on page 3 of this permit The stormwater control has been designed to handle the runoff from 194,900 square feet of impervious area 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 protect must be directed into the permitted stormwater control system Page 2 of 7 State Stormwater Management Systems Permit No SW8 061108 t-1 The following design criteria have been provided in the wet detention pond and must be maintained at design condition a DrainaArea, Acres gnsite, 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 II. SCHEDULE OF COMPLIANCE 528 230,185 None 194,900 1 4 85% 100 12,800 39,600 11 2 2" 0 pipe 7,895 UT to Smith Creek 1 Cape Fear 18-74-63 "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 061108 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 118 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 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 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 061108 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 fail 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 4 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 any name, ownership or mailing address changes within 30 days Permit issued this the 18th day of December, 2006 NORTH OLINA ENVIRONMENTAL- MANAGEMENT COMMISSION for Alan W Klimek,Director Division of Water Quality By Authority of the Environmental Management Commission Page 5 of 7 State Stormwater Management Systems Permit No SW8 061108 MJ Self Storage - Airport Stormwater Permit No SW8 061108 New Hanover 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 protect, (Protect) for (Protect Owner) hereby state that, to the best of my abilities, due care and diligence was used in the observation of the protect construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications The checklist of items on page 2 of this form is included in the Certification Noted deviations from approved plans and specification Signature Registration Number Date SEAL Page 6 of 7 State Stormwater Management Systems Permit No SW8 061108 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 All roof drains are located such that the runoff is directed into the system 5 The outlet/bypass 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/bypass structure 8 All slopes are grassed with permanent vegetation 9 Vegetated slopes are no steeper than 3 1 10 The inlets are located per the approved plans and do not cause short- circuiting of the system 11 The permitted amounts of surface area and/or volume have been provided 12 Required drawdown devices are correctly sized 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 cc NCDENR-DWQ Regional Office New Hanover County Building Inspections Page 7of7 _ - ESP Associates, P.A. engineering • surveying planning December 18, 2006 Mr Chris Baker, Environmental Engineer II NC DENR Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 28405-3845 Re State Stormwater Express Permit Stormwater Project No SW8 061108 MJ Self Storage - Airport New Hanover County, NC ESP Project No UF10 400 Dear Mr Baker Enclosed are two (2) sets of revised plans for the above referenced project Per our telephone conversation on Friday, December 15, 2006, we offer the following 1 We have provided a berm at elevation 11 2 (approximately 3/ the length) between the pond's forebay and main pool to maintain the 3 1 length to width ratio requirement for the detention pond We have calculated the length and width to be approximately 270 feet and 70 feet, respectively Please review this information for approval and contact us with any questions or comments you may have Thank you for your assistance on this project Sincerely, ESP ASSOCIATES, P.A. Monica V Loughlin Enclosures cc Archie McGRrt received ►��%/d PZECEIVE]D DEC 1 8 2006 BY RECEIVED DCM WILMINGTON, NC DEC 18 2006 2120 B Capital Drive Wilmington NC 28405 (910) 313 6648 t ar (910) 313 6823 www espassociates com ESP Associates, P.A. engineering • surveying • planning December 1, 2006 Mr Chris Baker, Environmental Engineer 11 NC DENR Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 28405-3845 Re State Stormwater Express Permit Response to Request for Additional Information Stormwater Project No SW8 061108 MJ Self Storage - Airport New Hanover County, NC ESP Project No UF10 400 Dear Mr Baker Per your comments dated November 16, 2006, we offer the following The pond's normal pool elevation has been revised to exceed the required surface area Per our telephone conversation on November 2161, the pond's volume is adequate for the state's requirement 2 Two (2) sets of revised plans are enclosed 3 A revised page 2 of the stormwater permit application is enclosed Revised pages 1 and 3 of the wet detention basin supplement form are enclosed 4 HydroCAD's table of the surface area and storage volumes are the provided values for the proposed pond The surface area and storage volume indicated on the calculations and wet detention basin supplement match and are the provided values 5 Not included per our discussion Please review this information for approval and contact us with any questions or comments you may have Thank you for your assistance on this project Sincerely, ESP ASSOCIATES, P.A. Monica V Loughlin Enclosures cc l"Cameron Weave, Express Permitting Coordinator Archie McGirt 2120 B Capital Drive Wilmington, NC 28405 (910) 313-6648 Fax (910) 313 6823 www espassociates com ESP_ Associates, P.A. engineering - surveying - planning December 13, 2006 Mr Chris Baker, Environmental Engineer II NC DENR Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 28405-3845 Re State Stormwater Express Permit Stormwater Project No SW8 061108 MJ Self Storage - Airport New Hanover County, NC ESP Project No UF10 400 Dear Mr Baker Enclosed is a check in the amount of $2000 for the additional review fee for the subject project This should complete your request for additional information Thank you for your assistance on this project Sincerely, ESP ASSOCIATES, P.A. Monica V Loughlin Enclosures cc Archie McGirt DEC 13 ?� 2120 B Capital Drive Wilmington NC 28405 (910) 313 6648 har (910) 313 6823 www espassoclatec com .� CD-479 {42), Business Corporation t� Forth Carolina Annual Report This report may be filed online at the Secretary of State website www sosnc c SOSID. 0633509 Date Filed- 4/10/2006 3 15.00 PM Elaine F Mar4hall North Carolina Secretary of State 2006 100 04984 NanAd13 s Cwp0W*n MONKEY JUNCTION MINI STORAGE, INC. Fiscal Year Ending 12 31 05 State of Incorporation NC Month r Day ! Year rlvacyRedacilon Secretary of State ID Number 0633509 Federal Employer ID Num Nature of Business SELF —STORAGE Registered Agent ARCH I E J . MCGIRT Registered Office Mailing Address 5050 CAROLINA BEACH ROAD city WILMINGTON State NC Registered Office Street Address 5050 CAROLINA BEACH ROAD city W I LM I NGTON state NC Signature of New Registered Agent (S+gnatura constitutes consent to the appdritmerd) Principal Office Telephone Number 910 — 7 6 3 -- 3 6 6 6 Principal Office Mailing Address 5050 CAROLINA BEACH ROAD City WILMINGTON state NC Pnnclpal Office Street Address City State rvame, i rife, ana nusiness Raaress or rnnGipal cm+cers Name cARCHIE J: MCGIRT Title PRESIDENT Address 5050 CAROL I NA BEACH ROAD city WILMINGTON state NC Zip 28412 Name Title Address Cv State Zip Name Title Address City State Zip Cert+fltation of annual r (Must be completed by all Business Corporations) / \ Sgnalura iForm mustbe signed by sn antoar cf aarporationy ARCHIE J. MCGIRT Type or Print Name 5 -) 5— _L4.114-a Date PRESIDENT rare ESP Associates, P.A. engineering -surveying -planning December 1, 2006 Mr Chris Baker, Environmental Engineer II NC DENR Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 28405-3845 Re State Stormwater Express Permit Response to Request for Additional Information Stormwater Project No SW8 061108 MJ Self Storage - Airport New Hanover County, NC ESP Project No UF10 400 Dear Mr Baker Per your comments dated November 16, 2006, we offer the following 1 The pond's normal pool elevation has been revised to exceed the required surface area Per our telephone conversation an November 21 st, the pond's volume is adequate for the state's requirement 2 Two (2) sets of revised plans are enclosed 3 A revised page 2 of the stormwater permit application is enclosed Revised pages 1 and 3 of the wet detention basin supplement form are enclosed 4 HydroCAD's table of the surface area and storage volumes are the provided values for the proposed pond The surface area and storage volume indicated on the calculations and wet detention basin supplement match and are the provided values 5 Not included per our discussion Please review this information for approval and contact us with any questions or comments you may have Thank you for your assistance on this project Sincerely, ESP ASSOCIATES, PA fdk; 6AL Monica V Loughlin Enclosures cc Cameron Weaver, Express Permitting Coordinator Archie MCGirt J� 2120 B Capital Drrve Wilmington NC 28405 (910) 313 6648 Fax (910) 313 6823 www espauaciate% corn P 1 � i * * COMMUNICATION RESULT REPORT ( NOV 16 2006 FILE MODE OPTION 479-- r TMEMORY TX ADDRESS (GROUP) ---------------- 93136623 5 09PM ) TTI RESULT --------OK NCDENR WIRO PAGE ------------- P 3/3 REASON FOR ERROR E-2) BUSY E-1) HANG UP OR LINE FAIL E-47 NO FACSIMILE CONNECTION E-3) NO ANSWER State of North Carolina -- �--- -_� Department of Environment and Natural resources Wilmington Regional Office Michael F Easley, Governor William G Ross Jr, Secretary Date: ►l LI fe C. CO: FAIL #: REMARKS: FAX COVER SHEET No. Of Pages: (excluding cover) 7 From: " �r CO: NCDENR FAX#: 910-350-2004 127 Cardinal Drive Extension, Wilmington, N Cr 28405.3845 Telephone (010) 796-7315 salt (910) 350.2004 An Equal Opportunity Affirmative Action Employer 1-11-1juiuisciiL vt i=.iiviLULUIICRL ana t'Naturai Kesources Wilmington Regional Office Michael F Easley, Governor William G Ross Jr, Secretary FAX COVER SHEET Date: 11 LIGlv-G - To: Moen L� - 101,�_ CO: FAX #: 313 - Q$ W , REMARKS: No. Of Pages: (excluding caper) 3 From: _ C1 e;�. eke=— T CO: NC DENR FAX#: 910-350-2004 127 Cardinal Drive Extension, Wilmington, N C 28405-3845 Telephone (910) 796-7215 Fax (910) 350-2004 An Equal Opportunity Affirmative Action Employer Michael F Easley, Governor William G Ross Jr , Secretary North Carolina Department of Environment and Natural Resources Alan W Klimek, P E Director Division of Water Quality November 16, 2006 Archie McGirt, President Monkey Junction Mini Storage, Inc 5044 Carolina Beach Road Wilmington, NC 28412 Subject: Request for Additional Information Stormwater Project No. SW8 061108 MJ Self Storage - Airport New Hanover County Dear Mr McGirt The Wilmington Regional Office received a Stormwater Management Permit Application for MJ Self Storage - Airport on November 16, 2006 A preliminary review of that information has determined that the application is not complete The following information is needed to continue the stormwater review Analysis of the proposed stormwater detention pond has determined that the pond is undersized for the proposed development Please resize the pond, both surface area and volume, and resubmit 2 Resizing of the detention pond will require resubmittal of all plan sheets 3 Please submit a corrected stormwater permit application and wet detention basin supplement 4 On page 4 of the HydroCAD design table the surface areas and storage volumes are the calculated minimums However the physical design, due to the shape of the proposed pond, results in different surface areas and storage volumes Example at elevation 9 5 on the HydroCAD design calculation sheet the minimum surface is shown to be 12,000 square feet The actual surface area as shown on the permit and plans is 12,400 square feet Please provide the table with the actual surface areas and storage volumes 5 Due to the nature of the above comments an additional fee of $2,000 00 is required with the submittal the corrected plans and calculations NOne rCaro Ina tua)l; North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone (919) 733-7015 Customer Service Internet www ncwateMuahly ore Location 512 N Salisbury St Raleigh, NC 27604 Fax (919) 733-2496 1-877-623-6748 An Equal OpportunitylAffinnative Action Employer— 50% Recycled110% Post Consumer Paper Archie McGirt November 16, 2006 Stormwater Application No SW8061108 Please note that this request for additional information is in response to a preliminary review The requested information should be received by this Office prior to November 30, 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 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 construction of any impervious surfaces, other than a construction entrance under an approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-2151 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) 796-7304 Sincerely, Chris Baker Environmental Engineer II ENBlcsb S 1WQSISTORMWATERIADDINFO120061061108 nov06 cc Monica V Loughlin, ESP Associates, PA File Page 2 of 2 ESP Associates, AA engineering - surveying • planning November 7, 2006 Mr Cameron Weaver, Express Review Coordinator NC DENR Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 28405-3845 Re State Stormwater Express Permit Submittal MJ Self Storage - Airport New Hanover County, NC ESP Project No UF10 400 Dear Mr Weaver Enclosed are two (2) sets of plans for the subject project, one (1) drainage area basin delineation plan, one (1) set of calculations, the original Division of Water Quality Stormwater Management Permit application, the original SWU-102 supplement form, one (1) copy of the stormwater narrative and a $4,000 00 check for the express permit review fee Please review this information for approval and contact us with any questions or comments you may have Thank you for your assistance on this project Sincerely, ESP ASSOCIATES, P A. . `CO- 1) - /at. Monica V Loughlin Enclosures cc Archie McGirt %fecel"1111 =07-006 g5A J�b� 2120 8 Capital Drn a Wilmington, NC 28405 (910) 313 W8 Fax (910) 313 6813 www espassocsates com STORMWATER SYSTEM NARRATIVE MJ SELF STORAGE — AIRPORT NEW HANOVER COUNTY, NORTH CAROLINA For Archie McGirt, President Monkey Junction Mini Storage, Inc P O Box 685 Wilmington, NC 28480 (910) 612-0868 `C A FESS%� Nt,'*`Cbelw September 25, 2006 Prepared by ESP ASSOCIATES, P.A 2120-B Capital Drive Wilmington, North Carolina 28405 (910) 313-6648 (910) 313-6823 (Fax) ESP Project # UF10 400 ?� received '� t\ /Y/� '5UJ1b0(0(t o$ NARRATIVE SITE DESCRIPTION The site is a 7 02-acre tract owned by the developer The tract is bounded by North 23`d Street (SR 1302) to the west, industrial/commercial uses to the north, Wilmington International Airport to the east and Smith Creek to the south The site has young growth forest, with moderate vegetated areas The site is gently rolling sandy soils (Leon, Seagate, Doravan) with poorly defined drainage patterns All runoff from the site drains to Smith Creek (C-Sw) and the Cape Fear River There are 1 01 acres of 404 wetlands, 0 18 acres of which are to be filled, and 0 21 acres of isolated non junsdictfonal wetlands to be filled located in the proposed project area PROJECT DESCRIPTION The project is new development consisting of clearing, grading, and construction of a self storage facility with asphalt parking and access, stormwater management system and utilities The disturbed area for these improvements is 6 6 acres Design impervious for the entire site is computed at 85% An erosion control permit will be required from New Hanover County Stormwater management permits will be required from the county and state A driveway permit will be required from NCDOT Construction is scheduled to begin as soon as all permits and approvals are obtained STORMWATER MANAGEMENT MEASURES The site drainage area is 5 28 acres The site is proposed as high density, with a proposed maximum impervious surface of 85% The site will be developed under the high -density guidelines using one wet detention basin with 85% TSS removal and a vegetated filter for treatment There is no direct discharge from impervious surfaces to a watercourse The grading contractor and developer will provide maintenance during construction The developer will provide maintenance after completion [Fwd [Fwd FW SW8 061108 MJ Self Storage - Airport]] 3 F4L,E,, 4L-6-� �jos obitos Subject: [Fwd [Fwd FW SW8 061108 MJ Self Storage - Airport]] From: Mary Jean Naugle <Mary Naugle@ncmatl net> Date: Tue, 04 Dec 2007 11 54 37 -0500 To: Monica Loughlin <mloughlin@espassociates com>, Linda Lewis <Linda Lewis@ncmatl nett, Mary Naugle <Mary Naugle@ncmatl net> Monica, I ANSWER YOUR QUESTIONS AS WORDED, BUT I WANT TO MENTION I AM NOT CLEAR WHAT YOU MEAN BY THE STATEMENT AT THE BEGINNING "pond as-builts reveal that the pond meets all of NCDENR's applicable requirements, but in some areas are less than what was permitted" o?v It can be less, but must meet the guidelines at the time the permit was granted, unless you are modifying the permit to add a significant amount of new bua or something else that triggers the current regs My answers to your questions are in CAPS 1 I see that the permit application and supplement forms have changed Will I need to complete the wet pond supplement in its entirety' More specifically, the Peak Flow Calculations section YOU MAY COMPLETE THE OLD POND SUPPLEMENT WITH SIGNATURE ON 0&M SINCE YOUR POND WAS BUILT PRIOR TO THE NEW BMP/FORMS UNLESS YOU ARE ADDING MORE BUA YOU DON'T HAVE TO DO THE PEAK FLOW CALCULATIONS 2 Will it be an issue if the average depth for SA/DA tables is less than 3 feet9 (the depth built=the permitted depth) AGAIN IF YOU ARE NOT ADDING A LOT MORE BUA AND THE POND IS PERMITTED YOU MAY UPDATE THE INFORMATION BASED ON THE OLD APPROACH PRIOR TO 10/01/07 3 Will it be an issue if the forebay volume percentage is greater than 22%'� THE FOREBAY MAY BE A LITTLE BIGGER THAN 22% IF THE POND IS OVERSIZED OR THE FOREBAY AND MAIN POND ARE AT THE SAME BOTTOM ELEVATION How much over is it '' 4 I presume 6 1 side slopes for the vegetated shelf is acceptable since that's what the regulations were at time of permit approval UNLESS YOU ARE ADDING A LOT MORE BUA = A SIGNIFICANT MODIFICATION TO THE EXISTING PERMIT, SINCE IT WAS BUILT PRIOR TO 10/01/07, YOU MAY USE THE OLD DESIGN BASIS Mary Jean Subject: [Fwd FW SW8 061108 MJ Self Storage - Airport] From: Janet Russell <Janet Russell@ncmatl net> Date. Tue, 04 Dec 2007 1128 11 -0500 To. Mary Jean Naugle <Mary Naugle@ncmatl net> Subject: FW SW8 061108 MJ Self Storage - Airport 1 of 3 12/4/2007 11 56 AM [Fwd [Fwd FW SW8 061108 MJ Self Storage - Airport]] " From: "Loughlin, Monica" <mloughlm@urban-ltd com> Date: Tue, 4 Dec 2007 10 33 40 -0500 To: <Janet Russell@ncmail nets Hey Janet, Would you kindly forward this to someone else on the stormwater staff in Linda's absence> Thank you, Monica V Loughlin, EI Pro3ect Manager From Loughlin, Monica Sent Tuesday, December 04, 2007 10 28 AM To Linda Lewis Sub3ect SW8 061108 MJ Self Storage - Airport Hey Linda, I hope this email finds you well ESP Associates was the original design engineer for the sub3ect pro3ect We will be providing the designer's certification as requested and contracted by the owner, Archie McGirt The pond as-builts reveal that the pond meets all of NCDENR's applicable requirements, but in some areas are less than what was permitted, so we will be making application for a modification I have a few questions as follows 1 I see that the permit application and supplement forms have changed Will I need to complete the wet pond supplement in its entirety? More specifically, the Peak Flow Calculations section 2 Will it be an issue if the average depth for SA/DA tables is less than 3 feet? (the depth built=the permitted depth) 3 Will it be an issue if the forebay volume percentage is greater than 22V 4 I presume 6 1 side slopes for the vegetated shelf is acceptable since that's what the regulations were at time of permit approval Any information that you can provide will be greatly appreciated and help expedite the routine modification submittal process Please contact me with any questions Thank you kindly for your assistance Regards, Monica V Loughlin, EI 2 of 3 12/4/2007 1156 AM [Fwd [Fwd FW SW8 061108 MJ Self Storage - Airport]] Protect Manager Urban, Ltd 108 North Kerr Avenue, Suite K-1 Wilmington, NC 28405 Tel 910 395 1655 ext 227 Toll Free 866 642 8040 Fax 910 395 1451 Email mloughlin@urban-ltd com Web www urban-ltd com --- _ _-_-____-__. - -_ [Fwd: FW: SW8 061108 MJ Self Storage - Airport].eml Content -Type: message/rfc822' Content -Encoding: 7bit I �IFW: SW8 061108 MJ Self Storage - Airport.emlContent-Type: messagelrfc822 l Content -Encoding. 7btt Content -Description: image001 jpg image001.jpg Content -Type: image/jpeg Content -Encoding: base64 3 of 3 12/4/2007 11 56 AM