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HomeMy WebLinkAboutSW8960208_HISTORICAL FILE_19960526STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW8 q(q 0 11),6 DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS Lb HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE l q u o!3 -u o YYYYMMDD State of North Carolina Department of Environment, Health and Natural Resources Division of Environmental Management �f Yr o James B. Hunt, Jr., Governor ID FEE f1 Jonathan B. Howes, Secretary • V A. Preston Howard, Jr., P.E., Director May 29, 1996 Mr. Roy H. Britt Britt's Self Storage 6789 Market Street Wilmington, North Carolina 28405 Subject: Permit No. SW8 960208 Britt's Self Storage High Density Commercial Stormwater Project Pender County Dear Mr. Britt: The Wilmington Regional Office received the Stormwater Application for Britt's Self Storage on February 9, 1996, with final information on May 17, 1996. Staff review of the plans and specifications has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H.1000. We are forwarding Permit No. SW8 960208 dated May 29, 1996, to Britt's Self Storage. This permit shall be effective from the date of issuance until May 29, 2006, 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 ajudicatory hearing upon written request within thirty (30) days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150B 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 concerning this matter, please contact Linda Lewis, or me at (910) 395-3900. Sincerely, Dave Adkins Regional Water Quality Supervisor DA/arl: S:\WQS\STORMWAT\PERMIT\960208.MAY cc: Jim Craig, P.E. Ron Covil, Pender County Inspections Beth Easley, New Hanover County Engineering Linda Lewis Wilmington Regional Office Central Files P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-5083 FAX 919-733-9919 An Equal Opportunity Affirmative Action Employer State Stormwater Management Systems Permit No. SW8 960208 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES DIVISION OF ENVIRONMENTAL MANAGEMENT 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 Britt's Self Storage Britt's Self Storage Pender County FOR THE construction, operation and maintenance of Dry detention with a grassed swale overflow in compliance with the provisions of 15A NCAC 2H .1000'(hereafter referred to as the "stonnwater ndes') and the approved stormwater management plans and specifications and other supporting data as attached and on file with and approved by the Division of Environmental Management and considered a part of this permit. This permit shall be effective from the date of issuance until May 29, 2006 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 31,800 square feet of impervious area. 3. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. 2 Project Name: Permit Number: Location: Applicant: Mailing Address: State Stormwater Management Systems Permit No. SW8 960208 DIVISION OF ENVIRONMENTAL MANAGEMENT PROJECT DATA Britt's Self Storage Application Date: Water Body Receiving Stormwater Runoff: Classification of Water Body: If Class SA, chloride sampling results: Pond Depth: Permanent Pool Elevation: Total Impervious Surfaces Allowed: Green Area entering Pond: Pender County Mr. Roy H. Britt Britt's Self Storage 6789 Market Street Wilmington, North Carolina 28405 February 9, 1996 Mill Creek "SA" 53 mg/l 2 feet 2 (assumed bottom of detention area is ground 0) MSL 31,800 square feet N/A Pre -construction runoff rate, Qpf,: 1.02 cfs Post -construction runoff rate, QP"st, 3.86 cfs Peak outflow, Qpe,k, from detention area: .83 cfs (< Qpre) Provided Storage Volume: 7,200 cubic feet (300x6x2 detention area with 2:1 side slopes) 85 % minimum settling efficiency achieved? YES 3 State Stormwater Management Systems Permit No. SW8 960208 4. No property owner/developer shall fill in, alter, or pipe any vegetative practices (such as swales) shown on the approved plans as part of the stormwater management system without submitting a revision to the permit and receiving approval from the Division. 5. The tract will be limited to the amount of built -upon area indicated in the supporting calculations and per approved plans. 6. The permittee is responsible for verifying that the proposed built -upon area does not exceed the allowable built -upon area. 7. The following items will require a modification to the permit: a. Any revision to the approved plans, regardless of size. b. Project name change. C. Transfer of ownership. d. Redesign or addition to the approved amount of built -upon area. e. Further subdivision of the project area. f. Filling in, altering, or piping of any vegetative conveyance shown on the approved plan. In addition, the Director may determine that other revisions to the project should require a modification to the permit. 8. 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. H. SCHEDULE OF COMPLIANCE The permittee will comply with the following schedule for construction and maintenance of the stormwater management system: a. The stormwater management system shall be constructed in it's entirety, vegetated and operational for it's intended use prior to the construction of any built -upon surface except roads. b. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be. repaired immediately. 4 State Stormwater Management Systems Permit No. SW8 960208 2. 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 it's entirety and maintenance must occur at the scheduled intervals including, but not limited to: a. Semiannual scheduled inspections (every 6 months). b. Sediment removal, based on results of inspections. Pond depth must be maintained at 2'. C. Mowing side slopes during the growing season. d. Immediate repair/revegetation of eroded areas and sideslopes. e. Monthly, or after a runoff -producing rainfall event, debris removal and unclogging of outlet structure, orifice device and collection system, including catch basins and piping. f. Access to the outlet structure must be available at all times. 3. Records of maintenance activities must be kept and made available upon request to authorized personnel of DEM. The records will indicate the date, activity, name of person performing the work and what actions were taken. 4. 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. 5. 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. 6. 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. III. GENERAL CONDITIONS This permit is not transferable. In the event there is a desire for the facilities to change ownership, or there is a name change of the Permittee, a formal permit request must be submitted to the Division of Environmental Management accompanied by an application fee, 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. 2. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to enforcement action by the Division of Environmental Management, in accordance with North Carolina General Statute 143-215.6(a) to 143-215.6(c). 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. 5 State Stormwater Management Systems Permit No. SW8 960208 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. Worn out components will be repaired/replaced per the approved design specifications. 5. The permittee grants Regional Office Staff permission to enter the property 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. Permit issued this the 29th day of May, 1996, NORTH CAROLINA ENVIRONMENTAL MANAGEMENT' COMMISSION A. Preston Howard, Jr., P.E., Director Division of Environmental Management By Authority of the Environmental Management Commission Permit Number SW8 960208 C, State Stormwater Management Systems Permit No. SWS 960208 Britt's Self Storage Stormwater Permit No.' SW8 960208 Pender County Engineer's Certification I, , as a duly registered Professional Engineer in the State of North Carofina, having been authorized to observe (periodically/weekly/full time) the construction of the 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. Noted deviations from approved plans and specification: Signature Registration Number Date 7 MEMO Date: -12-io-97 To: F/Le Subject: "760209 PE; AJ& onal QeveI yme1& rnex-F its Sfb(-Zr z racy Ii t- . The_ Las h25 C)efe m ec�! 4Aa- -'he- S i& i5 roj --� co, bnU2hv1 Co-F 4he Sbrar7"2C;II. bzc,s� + �s used es a used cap— Ivf 1� re A's ed 5r~C �1 7,,, h25 not ,beef From: 0 North Carolina Department of Environment, A A&VAA Health, and Natural Resources ® printed on Recycled Paper Aug. 19 1997 07:20AM P1 FROM : PENDER COLNTY INSPECTIONS PHONE NO. : 1 910 259 1295 Febex V.Lautft Plazining Department "Designing a better future for Ponder County P. O, BOX 832 BURGAW, NORTH CAROLINA 28M 910-259-1202 FACSIMILE TRANS/MISSIIOON SHEET DATE Ci ! � —/ —7 A. TO: FAX NUMBER: TELEPHONE NUMBER: B. FROM: FAX NUMBER: TELEPHONE NUMBER: _ TOTAL PAGES (INCLUDING COVER SHEET): nP TTTRTRTTr TTnNC! NOTE: IF THE FOLLOWING INFORMATION IS NOT CLEAR OR IF YOU DO NOT RECEIVE ALL THE INDICATED SHEETS, PLEASE NOTIFY OUR OFFICE IMMEDIATELY. ON BEHALF OF THE PENDER COUNTY PLANNING DEPARTMENT PLEASE HAVE A NICE DAY FROM PENDER COUNTY INSPECTIONS PHONE NO. : 1 910 259 1295 Aug. 19 1997 07:21AN P2 PENDER COUNTY PLANNING DEPARTMENT P. O. BOX 832 BURGAW, NORTH CAROUNA 28425 Q CQo 7plaint lnvestiWio,n RWrt Date Received: Time: Taken By: Complainant: ' Telephone: Address: City: state: Zip: Location of Complaint: 5 �tC- 11 14' Ali" 1.sT9.57 4 p$ l /oC.d A[9 a 11 RwartaRai Type of Complaint: n Agmulan,i DaSLAhe Complaint : Complaintee/Property Owner.: Y 'Complaint Referred to: Date of Inspection: Observations: Actions taken by Inspector. Actions taken by Planning Department: jraa�w 11 awntrI21 I1 aga.y II MInp�Yara n00.r. 1 erte: •1 I :T# Inepe Na Plamnv NFL OaG 0 State of North Carolina Department of Environment, Health, and Natural Resources Wilmington Regional Office James B. Hunt, Jr. Division of Water Quality Wayne McDevitt Governor Water Quality Section Secretary August 19, 1997 Ms. Angela Faison, Director Pender County Planning Department PO Box 832 Burgaw, NC 28425 Subject: Grading Activities adjacent to Britt's Mini Storage Stormwater Project No. SW8 960208 Pender County Dear Ms. Faison: The Wilmington Regional Office received your fax requesting an investigation into the grading activities on the property adjacent to Britt's Mini Storage off Highway 17 in Pender County. The storage site received a permit in May, 1996 for an alternative detention pond / filter system. The adjacent property was excluded from the permit because Mr. Britt claimed he did not own it. The plans list a Fred W. Klose as the owner. If the adjacent disturbance was less than 1 acre, and did not require a CAMA Major Permit, then the stormwater regulations do not apply. If, however, the Land Quality Section determines this site to be a phased development or a continuation of a previously permitted disturbance, then a Stormwater Permit can and will be required. I have copied Ms. Janet Paith with the Land Quality Section and respectfully request her to contact you at 259-1202. Sincerely, X Linda Lewis Environmental Engineer RSS/arl: S:\WQS\STORMWAT\LETTERS\960208.AUG cc: Linda Lewis Central Files 127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone 910-395-3900 • Fax 910-350-2004 An Equal opportunity Affirmative Action Employer I. L. SMITH CONSTRUCTION CO., INC. 301A N. GREEN MEADOWS DRIVE WILMINGTON, NORTH CAROLINA 28405 PHONE (919) 791-3313 FAX (919) 791-1125 November 6, 1996 Ms. Linda Lewis N.C. Department of Environmental Health and Natural Resources Water Quality Section 127 Cardinal Drive Extension Wilmington, N. C. 28405 Dear Ms. Lewis: Re: Notice of violation stormwater permit No. SW8960208. The above referenced stormwater management system will be completed on or before January 25, 1997. Construction of this system will begin on or before December 1, 1996. You will be notified upon completion and we will arrange to meet you on site for inspection. Please call Rod Smith at 910-791-3313 if you have any questions. IRS,JR/ib cc: Mr. Roy Britt Mr. Jim Craig Sincerely, Irving L. Smith, Jr. Vice President Nov 0 6 James S. Craig, P.E. 2904 Chestnut Street Wilmington, NC 28405 (910)762-9697 May 14, 1996 Ms. Linda Lewis, Environmental Engineer State of N.C. Dept. of Environment, Health and Natural Resources Wilmington Regional Office Division of Environmental Management Water Quality Section 127 Cardinal Drive Extension Wilmington, NC 28405-3845 Re: Britt's Self-Storage-Pender County Stormwater Project No. SW8 960208 Dear Linda: I am in receipt of your April 29, 1996, request for additional information for the referenced project. Your letter outlined five (5) items and in our May 6, 1996, meeting we addressed each item. We resolved items 1,2,3 and 5 to your satisfaction. Item 4 was a request for a location and plan view of the pond area. Please find the sketch enclosed. I would like to resolve this matter as soon as possible and your swift review of this additional information is requested. If any questions arise, please do not hesitate to contact Mr. Smith or myself. Sincerely,\' Craig P.E. Enclosures ON"' T 6 R IIIUPiTER D E C E I V E MAY 171996 D PROJ # 5W 8 quozo?7 State of North Carolina Department of Environment, Health, and Natural Wilmington Regional Office James B. Hunt, Jr. DIVISION OF ENVIRONMENTAL MANAGEMENT Governor WATER QUALITY SECTION Mr. Jim Craig, P.E. 2904 Chestnut Street Wilmington, North Carolina Dear Mr. Craig: April 29, 1996 28401 Resources Jonathan B. Howes Secretary Subject: ADDITIONAL INFORMATION Stormwater Project No. SW8 960208 Britt's Mini Storage Pender County The Wilmington Regional Office received a Stormwater Management Permit Application for Britt's Mini Storage on March 28, 1996. A preliminary review of that information has determined that the application is not complete. The following information is needed to continue the stormwater review: Please reference the equation you used for determining TSS removal efficiency criteria, and define all parameters. You state that Q <Qa, but Q is never determined. What are Z, b, Ks, and vo? t 2. Please revise your detention detail to show the 2' depth. The detail last submitted shows a depth of only 1'. 3. Please remember that revisions in one part affect other parts of the plan. Please review this project for completeness prior to resubmittal, and check that all assumptions are written, all equations are referenced, calculations are complete from start to finish, and details are complete and conform to the numbers in the calculations. 4. Please delineate the contours as provided for the detention area. If the plan sheet is too busy, provide a separate sheet, sealed, showing the area in contour, with all necessary details. 5. Where in the calculations do you determine that you have met one of the two discharge options required for alternative systems? 127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone 910-395-3900 • Fax 910-350 2004 An Equal Opportunity Affirmative Action Employer Mr. Craig April 29, 1996 Stormwater Project No. SW8 960208 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 May 29, 1996, or the application will be returned as incomplete. The return of a project will necessitate resubmittal of all required items, including the application fee. DA/arl: cc: If you have any questions concerning this matter please feel free to call me at (910) 395-3900. Sincerely, Ms. Linda Lewis Environmental Engineer S: \WQS\STORMWAT\ADDINFO\960208. APR L;inda_Lewis^ Central Files 2 D.E.M. STORM WATER DESIGN BRITT'S SELF STORAGE PENDER COUNTY REVISED MARCH 28, 1996 Prepared By: James S. Craig, P.E. 2904 Chestnut Street Wilmington, NC 28405 STONVINTER D E C E I V E MAR 2 81996 D BEM PROJ k_ James S. Craig, P.E. 2904 Chestnut Street Wilmington, NC 28405 March 28, 1996 Ms. Linda Lewis, Environmental Engineer State of N.C. Dept. of Environmental Health and Natural Resources Wilmington Regional Office Division of Environmental Management Water Quality Section 127 Cardinal Drive Extension Wilmington, NC 28405-3845 RE: Britt's Self -Storage - Pender County Storm Water Project No. SW8 960208 Dear Linda: I am in receipt of your February 29, 1996 request for additional information for the referenced project. The following will address each of the listed concerns. 1. Please find enclosed the results from each of the three water samples taken at a location one-half mile from the site as scaled from the previously submitted maps. Three were taken to insure the one-half mile criterion was met. All sample results were approximately 10% of the 500 PPM requirement or less. 2. The results of the chlorides analyses illustrate detention is an option: the system was designed to incorporate a detention area. 3. Infiltration was not considered due to the results of the chlorides tests. 4. Please find enclosed a design which meets the pre -post discharge requirement for the one year 24 hour storm for the developed site, which does meet 85% TSS removal. If any additional information is required or any questions arise, please do not hesitate to contact Mr. Smith or myself. Sincerely, 0 2 James S. Craig, P.E. JSC/ker Enclosures r'.r if wi ytl ri14 T,:c i rs• a'er':,, Fy t in env.irochexW Environmental Chemists, Inc. MAILING ADDRESS: TELEPHONE: SHIPPING ADDRESS: P.O. Box 1037 (910) 256-3934 (Office) 6602 Windmill Way CONSULTING Wrightsville Beach, CHEMISTS (910) 392-0223 (Lab) Wilmington, North Carolina 28480 (910) 392-4424 (Fax) North Carolina 28405 REPORT OF ANAL Y.3SS' Customer: I. L. SMITH CONSTRUCTION CO.. INC. 301—A No. Green Meadows Drive Wilmington, North Carolina 28405 Date Sampled: 03 09Z96 Sampled By: _, Client ._ Report To: Rod Smith PENDER CO. SITE SAMPLE ID Britt #1 (Lab ID# 1239) Britt #2 (Lab ID# 1240) Britt #3 (Lab ID# 1241) Date of Report: P.0_#: Report #: 03/18/96 2431 CHLORIDE. as Cl 31.3 mg/L 53.1 mg/L 29.2 mg/L ,Ak�- ;zoD SMrry '%yl-3313 �viroc`he �;,m s Environmental Chemists, Inc. MAILING ADDRESS: TELEPHONE: SHIPPING ADDRESS: P.O. Box 1037 (910) 256-3934 (Office) 6602 Windmill Way CONSULTING Wrightsville Beach, (910) 392-0223 (Lab) Wilmington, CHEMISTS North Carolina 29480 (910) 392-4424 (Fax) North Carolina 28405 F CHAIN OF CUSTODY FOR SAMPLE COLLECTION Client:�j S/y� J� /�G. Sry� in�l Report # : ,2,y�7� Collected By (signature & print) : r yy� C✓�i9%� ��J��� ���� Sample Type: Influent, Effluent, Well, Stream, SoiZ /Other Collection: For composite Indicate Date & Time for Start & Finish Location & Sample Collection Bottle Lab Analysis Identification Type Date Time ID ID Requested Su � r is Sy '�inCK CpLa� �2M/e.0 3Jo �ASi SR./�f'2 C66 0 t Transfe Relinquished By Date/Time Received By Date/Time Proper Preservative Used: Acid _ Received On Ice or Chilled to 40C: Accepted`:_ �/........Rej.ected_ Base Yes No By Comment Other :.'Delivered By.- `'C Received By r. . Date...,:. �6... Time -� .. ^. r .:4^^ *"�,-, �'^C tr F - •ri rna r �, 2` '� � -5 5.�''.�.�. �"�^f_ 26-Mar-96 DRAINAGE CALCULATIONS — BRITTS SELF STORAGE Atot = 0.73 ac Aimp = 0.73 ac Cpre = 0.25 pre-dev coeff. Cpost = 0.95 post-dev coeff. 12/24 = 5.57 in/hr (1 yr 24hr will be less) Qpre = 1.02 cfs Qpost = 3.86 cfs VOLUME OF RUNOFF P= 3.6 in(1yr24hr) CN= 95 S=(1000/cn)-10 S= 0.53 Q*= (P-.2S)^2 3.04 in (P+.8S) V = Q*Atot = 8048.57 cf TIME TO PEAK Tp=V/1.39*Qpost = 24.98 min VOLUME OF RUNOFF TO MEET TSS REQUIREMENTS \ �V, vo = 0.004 ft/s settling velocity for the design particle (40 micron particle) C q N= 1 settling performance value — B=very good--> 1=very poor eff = 0.85 settling efficiency required pond inv = 0 ft Qs=b*Ks*vo *Z^(b-1) _ N[(1-E)^(1/N)-1] `, 3.32 cfs Q<Qs -- EFFICIENCY METH 26-Mar-96 PROJECT: BRITTS SELF- STORAGE LOCATION: HWY 17 FENDER COUNTY OWNER :ROY BRITT DISCRIPTION : Qpre= 1 cfs Opost- 3.9 ds Tp- 25 min ROUTING SUMMARY:1 YR 24 HR POST= PRE (CHAINSAW METHOD) POND 300 X 6 X 2 FT WITH LEVEL SPREADER S Z CONTOUR INCREMENTAL ACCUM CONTOUR AREA VOLUME VOLUME STAGE In InZ Zest (sq ft) (cu ft) (cu ft) (ft) (ft) 0 1800 0 0 0 0.5 2700 1125 1125 0.5 7.0255 -0.6931 0.506816 1 3600 1575 2700 1 7.9010 0.0000 0.977001 1.5 45M 2025 4725 1.5 8.4606 0.4055 1.486282 2 5400 2475 7200 2 8.8818 0.6931 2.038189 Regression Output: Constant Std Err of Y Est R Squared No. of Observations Degrees of Freedom X Coefficient(s) Std Err of Coef. INPUT DATA: PEAK FLOW= QP= TIME TO PEAK= Tp= DELTA TIME dT= Ks= b= Zo- RISER DIA= Dr - RISER CIR= Cr- RISER AREA= Ar- WEIR COEFF. RISER= Cwr� ORIFICE COEFF. RISER= Cdr- CREST ELE. RISER= Zcr BARREL DIA= Db= INVERT ELE. BARREL= Zj�- ORIFICE COEFF. BARREL= Cdb= SPILLWAY LENGTH-- Lw= SPILLWAY ELE= Ze= WEIR COEFF= Cw= CONTROL ORIFICE DIA. (DEM) Do- S OF DRAWN DOWN ORIFICES #Do- INVERT ELE. ORIFICE(S)= Zoi= : ORIFICE COEFF.= Cdo= 7.932042218038 => Ks= 2785 0.032218645972 b= 1.33 0.998924918528 " 4 I 2 I I 1.3336648 0.0309422 3.9 cfs 25 min 2 min 2785 2785 1.33 1.33 0 ft (ref) 0 in OR =--> 0.00 It 0.00 sf 3.0 0.6 0 ft 0 In 0 ft 0.6 300 It 2 It 3.0 0 in 0 0 ft 0.6 OUTPUT DATA: Initial stage = 0 ft, msl NORMAL WATER LEVEL Normal surface area = 1662.69 sf OR= 0.04 ac Q, Peak ouMav= 0.93 ds Peak stage = 2.02 ft, msl Peak storage = 7118.68 d Peak surface area - 4698.56 sf OR- 0.11 ac Lri= 0 It AND Wr LR= 0.00 PJne RWrYq s .4 3 02 0pos o o so ME (min) 0 ft TIME INFLOW STORAGE STAGE Qonfice(s) Qnser (WEIR) Qnser (ORIF.) Qbarrel Qspillway Qtotal (min) (Cfs) (cu ft) (ft) (crs) (cfs) (Cfs) (cfs) (cfs) (Cfs) 0 0 0.00 0.00 2 0.06 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.000 4 0.24 7.35 0.01 0.00 0.00 0.00 0.00 0.00 0.000 6 0.53 36.30 0.04 0.00 0.00 0.00 0.00 0.00 0.000 8 0.91 99.72 0.08 0.00 0.00 0.00 0.00 0.00 0.000 10 1.35 208.33 0.14 0.00 0.00 0.00 0.00 0.00 0.000 12 1.83 370.02 0.22 0.00 0.00 0.00 0.00 0.00 0.000 14 2.32 589.33 0.31 0.00 0.00 0.00 0.00 0.00 0.000 16 2.78 867.18 0.42 0.00 0.00 0.00 0.00 0.00 0.000 18 3.19 1200.81 0.53 0.00 0.00 0.00 0.00 0.00 0.000 20 3.53 1583.97 0.66 0.00 0.00 0.00 0.00 0.00 0.000 22 3.76 2007.28 0.78 0.00 0.00 0.00 0.00 0.00 0.000 24 3.88 2458.85 0.91 0.00 0.00 0.00 0.00 0.00 0.000 26 3.88 2925.00 1.04 0.00 0.00 0.00 0.00 0.00 0.000 28 3.76 3391.15 1.16 0.00 0.00 0.00 0.00 0.00 0.000 30 3.53 3842.72 1.27 0.00 0.00 0.00 0.00 0.00 0.000 32 3.21 4266.03 1.38 0.00 0.00 0.00 0.00 0.00 0.000 34 2.89 4650.69 1.47 0.00 0.00 0.00 0.00 0.00 0.000 36 2.60 4997.35 1.55 0.00 0.00 0.00 0.00 0.00 0.000 38 2.35 5309.76 1.62 0.00 0.00 0.00 0.00 0.00 0.000 40 2.11 5591.32 1.69 0.00 0.00 0.00 0.00 0.00 0.000 42 1.91 5845.07 1.74 0.00 0.00 0.00 0.00 0.00 0.000 44 1.72 6073.76 1.79 0.00 0.00 0.00 0.00 0.00 0.000 46 1.55 6279.85 1.84 0.00 0.00 0.00 0.00 0.00 0.000 48 1.39 6465.59 1.88 0.00 0.00 0.00 0.00 0.00 0.000 50 1.26 6632.98 1.92 0.00 0.00 0.00 0.00 0.00 0.000 52 1.13 6783.84 1.95 0.00 0.00 0.00 0.00 0.00 0.000 54 1.02 6919.80 1.98 0.00 0.00 0.00 0.00 0.00 0.000 56 0.92 7042.33 2.00 0.00 0.00 0.00 0.00 0.28 0.284 58 0.83 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.829 60 0.75 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 6.747 62 0.67 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.674 64 0.61 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.607 66 0.55 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.547 68 0.49 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.493 70 0.44 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.444 72 0.40 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.400 74 0.36 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.361 76 0.33 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.325 78 0.29 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.293 80 0.26 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.264 82 0.24 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.238 84 0.21 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.215 86 0.19 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.193 88 0.17 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.174 90 0.16 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.157 92 0.14 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.142 94 0.13 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.128 96 0.11 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.115 98 0.10 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.104 100 0.09 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.093 102 0.08 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.084 104 0.08 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.076 106 0.07 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.068 108 0.06 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.062 110 0.06 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.056 112 0.05 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.050 114 0.05 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.045 116 0.04 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.041 118 0.04 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.037 120 0.03 7118.68 2.02 0.00 0.00 0.00 0.00 2.72 0.033 �Zv'« MF+r� 1, �2S'O 7 vOIZT14 Prlo� O-te.R STOyC+va \\ SJwTyr AND Jr Mv�� c� ►.a o SfScO Z/ ' t)CiST/N(r FLLA- r-IE LC / w\Vw V I-TCkokue AacA ZJT.S. fRA STORM d LR, D E C E I V E D MAR 2 81996 D E M PROJ N pRoPosc.� Crru.o e State of North Carolina Department of Environment, Health, and Natural Resources Wilmington Regional Office James B. Hunt, Jr. DIVISION OF ENVIRONMENTAL MANAGEMENT Jonathan B. Howes Governor WATER QUALITY SECTION Secretary Mr. Jim Craig, P.E. 2904 Chestnut Street Wilmington, North Carolina Dear Mr. Craig: February 29, 1996 ROOM Subject: ADDITIONAL INFORMATION Stormwater Project No. SW8 960208 Britt's Mini Storage Pender County The Wilmington Regional Office received a Stormwater Management Permit Application for Britt's Mini Storage on February 9, 1996. A preliminary review of that information has determined that the application is not complete. Because this site is unique in that a stormwater plan is being done after the constuction; the stormwater controls must be considered innovative; and the site does drain to SA waters, the following information is needed to continue the stormwater review: 1. A chlorides test must be performed in order to be able to allow the proposed detention. J2. If detention is an option based on the results of the chlorides test, the system must demonstrate compliance with one of the provisions in #4 below. �l 3. If detention is not an option based on the results of the chlorides test, then an infiltration system in accordance with .1008 (d) will be required. The design storm will be 1-1/2", as required by .1005 (2)(b)(ii). 4. The alternative design criteria stipulate that you must demonstrate the ability to remove 85 % TSS, and one of the following: the discharge rate following the design storm shall be such that the runoff volume draws down to pre -storm stage in 2-5 days; or, the post -development discharge rate shall be no larger than the predevelopment rate for the one year 24 hour storm. The dry detention coupled with the 50' vegetated filter will provide 85 % TSS removal, however, you have not indicated compliance with one of the remaining requirements. 127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone 910-395-3900 • Fax 910-350-2004 An Equal opportunity Affirmative Action Employer Mr. Craig February 29, 1996 Stormwater Project No. SW8 960208 The alternative design criteria as described in .1005 (2)(b)(ii) are new, and have generated more than their share of questions from the review staff. I have discussed this site in detail with the Central Office and the comments given here reflect their concerns as well as certain interpretations that I was not aware of at the time of our meeting. 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 March 29, 1996, 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 have any questions concerning this matter please feel free to call me at (910) 395-3900. Sincerely,, "";" Ms. Linda Lewis Environmental Engineer DA/arl: S:\WQS\STORMWAT\ADDINFO\960208.FEB cc: Linda Lewis Central Files 2 66u,? q�-Q70-7 ICE 5i6 Z-26-`/(o fih_e L2kp5 �h/75a,, Fms 1110 lore serfs o-F I-6VSeC( Pord i . 442qs e S8 10� Sulf 2�'e z,-ez has he , r_e_n,r'sCL( . heel�- o�ruy(5 s uv ore (,/Sep fv /'1� f7LoJ"ec O / L / S p` I ACCOmd'nC� 7U n /e5 ()G�e� YYIUSL/- /,A-- i�?GreosecJ eXSA n ry cv�C( vn_ —ham n ee We 0/ A) Q�e�P.i in�ge fh2 -N-{p�- rotnot 5—�ppro -al—/gut hv�-n v�eCi� 2 S—r-� Se ✓ a� �an Z,(Z (q(o . Cos (0) _ C2"1'70� a�'sch z, ih .rPSro-is2 iy 0%s9n Sfara�, Sf2/l need r, Ole lest eC� ? -----U t35 Yv TS5 4. u✓s i c� Z-S LJ s C�t2 I 57J , ZCe 50 eF I, 1' q sf 3Go = Z�W cF i' I 5A06o T55 r vv2( Z ,c}r�olzle b �r� . - Gvh2f : IS 1/1 fe"ns/4 of I ! - 1� ' else 6� leve ( sPre ��� c/5e � • bry 2 d i V/ f[. J f e �-w. Gi C �E'J lL (G C'A"/r7 aC. �. �/CJ_7i - V GV e�.__ o (oq li i7Gr C �'GCec �c�s OVc� VIGn- } TJe f_e/rr,, 41 w +hOwtye loci h� ti e2d of/oath ; If 125') C. -7.3) _ -OI f s 964—(.Izs)C�a4% = ,683 CL5 I _ �I • I �Of a nnv2/$" ec- � / 4C ` = 1A 2c--F4 I OO _ .x , , r24'nOv �. Grua Jung it 4 —I ! = 2 h5o j�Ae7�,Pb �� 1, _ _I;._� L�_-F i'L..._1 r I. _3• ., i� 2clC�r� �I c�uvnA = I C) UcT, i 0 = C A = 9 � � ? )_�_� 3 � � 5 c'5 +/IZ'e 435GO = ZCDOO c� = I'Soo cf .-73 ac = 1314- cf Fcr�s�!"Vzp efF. Proy" vol uoa- = zgCOC-f rzhe = 3: J I z3`7 3_ .03 Jmlgi . � 24- Pane CD 2' n eeri2, 'sed d e-F 2r'/ Cum,-j aA 2" cfe�p. 5tpr2 Pn� �o! 1� (�) C-7mroyeY; ram. S�DrzySL Un Ie55 Con fDurs : Zre povi e Zll c21cs d eF � is ._ I hs; ef� la yur <Je•5 r. 7f -Ihe (A,s 2re i-vo b(-)rol;c,/e 2✓1_Z cc �Onal Piz,, sheet . U.. Li 2, Plany ewy � cUn,favr5 A clef��5 Fir .-Fhb.-' ciei"'eni'o� 7.yPz. tv J D.E.M. STORM WATER DESIGN BRITT'S SELF STORAGE PENDER COUNTY 01 Prepared By: James S. Craig, P.E. 2904 Chestnut Street Wilmington, N.C. 28405 D E C E I V E FEB 0f 1996 D PROJ # UJE y(POzvol BRITT'S SELF STORAGE Pender County Narrative - Storm Water Submittal This project is located on a 1.8191 acre site (Garrason) in Pender County on U.S. 17, approximately 0.35 miles south of the US 17 and SR 1582 intersection. The development consists of disturbing approximately 1.17 acres of the tract to construct a mini storage facility rendering approximately .73 acre impervious, including the entrance road within the highway right of way (approx. 40%). The project is located over 1.5 miles northwest of the ICCW (Scaled D.O.T. highway, Pender County). The treatment of storm water proposed is to construct a level spreader across the rear of the site which will diffuse the existing two flumes. The discharge will model sheet flow for excess runoff over one inch over the impervious area (.73 acre) over undisturbed natural vegetation (approximately .5 acre). No testing is necessary due to length of travel to the surface waters, greater than the direct measure of approximately 1 mile and the minor development of the small tract. Level Spreader Design: Impervious Area = .73 AC = 31798.8 sq. ft_ 1" Vol. = 2650 C.F. QTotal = 7.0 CFS => 2100 CF tc=5 min\ 10 year storm Size Level Spreader: Length = 300 ft (min) Area = 2650/300 = 8.8 sq. ft. Bottom Width = 6 ft. Side Slopes = 1:3 �TOR 1 11ATER Depth = 1 ft. .{ Area = (6 ft x 1 ft),— (1 ft x 3 ft) = 9 sq. ft. Area > Area O.K. l0 n E C E I V E n FEB 0 91996 D E PRO # `5 DZ08' 77 LiA fl;ID '95 �98 31 P;i 2 3a 'fills DFUl1, ...nda This iplh day u l s �b e e ll1:L (B GRAN rons 171U,D W. KLOSIS CRAN'I'CFa AND WIrC, ROY 11. ItSil'1'i' JOANNfi G. KLOSE El in ludo lra lion Grantors and Grantees as used shall assigns, and shalll des.igna�ed parties, their used in this instrument neuter Corm as include singular, successors and be mrLctiCuc ed required Ly context. Eemiplural, masculine, substituted for those of nine or masculine pronouns eminor for the neuter Porm or vice nha11 the context s''°q°tar number or v' versa and the may require such. tee vrroa in an Plural Y place in which Grantors, for a in consideration paid which is ackn owledyed, convey to Grantees land located P by Grantees, receipt of described as: in POPSAIr, TownshI in fee Dimple, theparcel P. Pander County, North Carolinaf Rgq• SEE CNCC. T "A"TAIIC ED HERETO /INU 1NCORPO RATEU FIE REIN BY EFERENCE, Grantees shalhe b in fee simple. l h and appurtenancesave and hold taove land and all its privileges The property described above Was instrument recorded in Ueed a Book 691 Registry. Paaerr 221d ofY Grantors by the Cite PENDER County Grantors If with Grantees that Grantors a premises in fee simple, Gran Cora have simple, title is marketable and tl'a right re seized o Grantors w' 9.Ft to con f the ill warrant and di,, free and clar of alIssue y the name in fee all persons. tend the title a' ainstumbrances, and 9• C1lawful claims of O LIN/, NOR �Q�JJ�) •�u;rs��TA'� f�� 4� �, �,v� P.eaarded nn:l 4erSr lob c'nn'ax�-�aw� LO /(id' Jnn ce 1. S:vi r,^gnodp �'^ � - �,a,�] iicglstcr at Uczds °ender county, 17L IN WITNESS WHEREOF, Grantors have hereunto, set'2hetY- I �Pnde and scale, the day and year first above written. ail l'I n /G (Seel( (Seel) FRED W. KLOSE / ANNE G. KLOSE STATE. OF NORTH CAROLINA COUNTY OF NEW HA14OVER 1, ELIZABETH A. WHITLEY, A Notary Public of the County and State aforesaid, certify that FRED W. KLOSE AND JOANNE G. KLOSE personally appeare�"k'14 re me this ,day and acknowledged the execution of the fore NAB µLnry Lyme n t. :e Itness m}. 1hnd and .official seal, this _.i� day of AUGUST, 1995. PUBUC t � 9,'` • <A,,, Signature of Notary Public COVER GOV..'� n)s=n My conunis , eion expires 3/5/97. _ The foregoing certificate of ELIZABETH A. WHI:TLEY, Notary Public, rs certified to be correct. This instrument and this certificate are duly registered at the date and time and in the Book and page shown on the first page hereof. JOYCE N. SWICEGOOD 40 PENDEERR County Register of Deeds By t gi D pu ty /Aoe',t'� \lmnnl) D—, fnnu 61.UF 1f In MHI I'1' C U E EXHIBIT "A" BECINNIIIG at all lean pipe in till Southensten, tlybt�'C-way lino of U.a. NLghwey 117, 50 feat from hbu cenlacLino th,mof, sold icon pipe bch,g locnlcd south 43 degrees 21 minutca 30 necmtdo G.,t 50.0U Coot from a P.K. ,oil in Lhe rcoLurWlO'ot t1.6. Illyhwey 117- .... P.It. na Ll bntug l:,ulh 46 ds�lreco :10 to LmLon 30 ,ecoodn West 451.95 feet twin an Iron Pin located uL We P.1. of a circular curve of the c,nterllne of U.S. Uigbwny 117, said iron pin beh\g locnled froth -17 degrees US minutes 00 necondo ,not 67.110 feet from U.O. ,C... L and GoudeLtc Survey Bench Mark Number P 146, sold Iron pipe at the P.1. of sold curvo being olao localcd 6ou0h 50 degree- 1G minul.ca 00 necondo WeuL IUG4.77 lect from a P.K. null of LhO 13.1. Of Uro centerllne of anolber curve or U.S. Illyhway �171 laid P.K. Soil at nnid p.l. being local d South' S5 degrees 113 minutes 30 seconds Weal 416.17 feet from a P.K: nail at the 1nLernection of Ute centerline of U.S. Highway 117 sod Secondary Bond 11502, Washinglen Acre. Rood, running thence Cram Unit' 130011" ng point with tile Gduthsnnlcrn rlghL-of-soy of U.S. Big bway 117, North 46 .degrees 30 oiuuLea 30 second" East IU0.00 feet to a 'point lit the 'naglu,ing of n cliculor curve in th, above mentioned right-aC-waY Ible running thence again w1LU said rlghLbC-w,y Line, a circular curve W the rlghL having a radius of 3307.7466 CceL. no lira dlnbru,to oE'1U1.01 CerL Lo tin -Cron pipe, .raid Iron pipe being located North 47 degree. 29 minutes 45 seconds Baal 101.00 CceL from Ihg precoding point, uunrLnr Utence ,.uLl, 43 degrees 03 mLnutca 15 .condo IiaoL 2..011.06 fact tc tin Leon pile, In Johnic GLLbcrL 'Chum no, Sr.'s i.tnc, ,atd icon plpc being 2u0.UU feel Crom the r1gbL-aE-way W,o of U.S. nlybwoy 111 when mennured ou dyhL angles slid tangent to the curve of U.S. 1119bany I1'71 running thence parallel to and 200.00 CeeL from the right-of-way lino of U.S. nlghway 117, wi19, Jobnie Gllbert '1'homon, Sr.'s Woe, a circular curve In the left having a radlun Of 3179.7460 feet, an are distance of 99.91 CeeL Lo col Lron pipe nL We end of said curve, gold Iran pipe being located SouLl, 41 deyteeu 32 minutes 30 Itconda WOOL 99.90 feet Crom the precedbIg polnL run,dng Lbence parallel to U.S. Illyhw.y 117 wiU, dolude Gilbert Thomas, Sr.'. lino South 46 dege,eo 30 minulen 30 second. Wool, 109.09 CeeL to an Lron pipe, running LhencO North 43 degrees 03 mho, lea 30 second, Wool 2,0.00 [let Lo the bey Lnuing .lid containing. 43,413 square feet or 0.990 acre asnurveyed by Juhnle C. Narration, Roylalered Land Surveyor, in 'October, 1974 W1U, calculated mayneLle bearino l from Section 0 01 Washin9lyn Acres. 'file above aceevibed laadn being . portion of the lands conveyod to N.C. Thom.., dr. by deed recorded In Book 416, Pose 402 of Ills ,'ender County ltagintry.