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HomeMy WebLinkAboutSW7960601_HISTORICAL FILE_20200826 (2)STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW 7&1&& DOGTYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATEn�(p YYYYMMDD Roy COOPER Governor . MICHAEL S. REGAN secretary , BRIAN WRENN - - Dlree . August 26, 2020 Autozone Attention: Mr. Thomas Kliman, Vice President P.O. Box 2198, Dept 8088 . Memphis, TN 38101-2198 Subject: 'Stormwater Permit Renewal' Stormwater. Management Permit SW7960601 Autozone Store No. 0299 New Bern, NC, Craven County Dear Mr. Kliman: A'Division of Energy, Mineral, and Land Resources file,review has determined that Stormwater Permit SV 7960601 for stormwater treatment system consisting bf a wet detention pond serving an Autozone store located at 1707 Neuse Blvd.; New Bern, NC . expires on February 7, 2021. This is a reminder that permit renewal applications are due 180 days prior to expiration. We'do not have a record of receiving a renewal application. Please submit a completed permit renewal application along with a $505.00 fee for , permit renewal. Permit application',fornr "46r; renewal can be•found on our. website. at: rules /crnrmwater oro""'"' d �r_r�nstrlaction. North Carolina General Statutes and the Coastal Stormwater rules require that, this property be covered under a stormwater permit. Failure to maintain a pemtit subjects the owner to assessment of civil penalties. If you have.questions, please feel, free to contact me at (252) 948-3923. I will be glad too eJ can py'of the, discuss this by phone or meet with you. If, byou e-mail lik ' at ro4er thomail �eC& cd nr.aov. application form. You can request a copy y sincerely,, Rog K. Thorpe; Environmental Engineer , Narth Carolina Department of Envlm,erdal Quallty I DMslon of Energy, Mineral and Land Resources D Washington Reglonal Office 1 943 Washington Square Mall I. Washington• North Carolina 27889 Y OiOj� /' 252.946.6481 LIMITED LIABILITY COMPANY ANNUAL REPORT ■ razor �{ NAME OF LIMITED LIABILITY COMPANY: Autozone Stores LLC SECRETARY OF STATE ID NUMBER: 1406749 STATE OF FORMATION: NV REPORT FOR THE CALENDAR YEAR: 2026 SECTION A: REGISTERED AGENT'S INFORMATION 1. NAME OF REGISTERED AGENT: CT Corporation System 2. SIGNATURE OF THE NEW REGISTERED AGENT: E - Filed Annual Report 1406749 09:15 Changes SIGNATURE CONSTITUTES CONSENT TO THE APPOINTMENT 3. REGISTERED AGENT OFFICE STREET ADDRESS & COUNTY 4. REGISTERED AGENT OFFICE MAILING ADDRESS 160 Mine Lake Ct Ste 200 160 Mine Lake Ct Ste 200 Raleigh, NC 27615-6417 Wake County , Raleigh, NC 27615-6417 SECTION B: 1. DESCRIPTION OF NATURE OF BUSINESS: retail auto parts & accs. 2. PRINCIPAL OFFICE PHONE NUMBER: (901) 495-7099 3. PRINCIPAL OFFICE EMAIL: Privacy Redaction 4. PRINCIPAL OFFICE STREET ADDRESS 123 S. Front Street Memphis, TN 38103-3607 5. PRINCIPAL OFFICE MAILING ADDRESS PO Box 2198, Dept 8088 Memphis, TN 38101-2198 6. Select one of the following if applicable. (Optional see instructions) ❑ The company is a veteran -owned small business ❑ The company is a service -disabled veteran -owned small business SECTION C: COMPANY OFFICIALS (Enter additional company officials in Section E.) NAME: Thomas Kliman TITLE: Vice President ADDRESS: 123 S Front St NAME: Brian Campbell NAME: William C Rhodes, III TITLE: Treasurer TITLE: President ADDRESS: 123 S Front St ADDRESS: 123 S Front St Memphis, TN 38103 Memphis, TN 38103 Memphis, TN 38103 SECTION D: CERTIFICATION OF ANNUAL REPORT. Section D must be completed in its entirety by a person/business entity. Thomas Kliman 3/12/2020 SIGNATURE DATE Form must be signed by a Company Official listed under Section C of This form. Thomas Kliman Vice President Print or Type Name of Company Official Print or Type Title of Company Official SUBMIT THIS ANNUAL REPORT WITH THE REQUIRED FILING FEE OF $200.00 MAIL TO: Secretary of State. Business Registration Division, Post Office Box 29525, Raleigh, NC 27626-0525 SECTION E: ADDITIONAL COMPANY OFFICIALS NAME: Kristen Wright NAME: AUTOZONE INVEST MENT CORPORATION NAME: TITLE: Secretary TITLE: Managing Member TITLE: ADDRESS: ADDRESS: ADDRESS: 123 S Front St 123 S FRONT ST Memphis, TN 38103 MEMPHIS, TN 38103 NAME: NAME: TITLE: TITLE: ADDRESS: ADDRESS: NAME: NAME: TITLE: TITLE: ADDRESS: ADDRESS: NAME: TITLE: ADDRESS: NAME: TITLE: ADDRESS: NAME: TITLE: ADDRESS: NAME: TITLE: ADDRESS: NAME: TITLE: ADDRESS: NAME: TITLE: ADDRESS: NAME: TITLE: ADDRESS: NAME: TITLE: ADDRESS: NAME: TITLE: ADDRESS: Name: TITLE: ADDRESS: NAME: TITLE: ADDRESS: �OF W A 14 90 Michael F. Easley, Governor `0 G William G. Ross Jr., Secretary CO r North Carolina Department of Environment and Natural Resources Alan W. Klimek, P.E. Director Division of Water Quality July 27, 2006 Autozone, Inc. Attn: Mr. Lawrence Evans 60 Madison Avenue Memphis, TN 38103 Subject:: Stormwater Permit No. SW7960601 Autozone Store No. 299A Craven County Dear Mr. Evans: The Division of Water Quality issued a Coastal Stormwater Management Permit, Number SW7960601 to Autozone, Inc. for Autozone Store No. 299A on January 8, 1997. This permit expires on January 8, 2007. Section .1003(h) of 15 A NCAC 2H .1000 (the stormwaterrules) requires that applications for permit renewals shall be submitted 180 days prior to the expiration of a permit and must be accompanied by a processing fee, which is currently set at $420.00. If this is still an active project please complete and submit the enclosed renewal application in a timely manner. If this project has not been constructed and a permit is no longer needed, please submit a request to have the permit rescinded. If you have sold the project, or are no longer the permittee, please provide the name, mailing address and phone number of the person or entity that is now responsible for this permit. Enclosed is a form for change of ownership, which should be completed and submitted if the property has changed hands. Your permit requires that upon completion of construction and prior to operation of the permitted treatment units a certification of completion be submitted to the Division from an appropriate designer for the system installed. This is to certify that the permitted facility has been installed in accordance with the permit, the approved plans, specifications and supporting documentation. Please include a copy of the certification with your permit renewal request and processing fee. Enclosed is a copy of a sample certification. Also enclosed /s a new Operation and Maintenance agreement that should be completed and submitted along with your renewal application. You should be aware that failure to provide the Designer's Certification and the operation of a stormwater treatment facility without a valid permit, are violations of NC General Statute 143-215.1 and may result in appropriate enforcement action including the assessment of civil penalties of up to $10,000 per day. If you have any questions, please feel free to contact us at 252-946-6481. incerlely, AI Hodge, Regal Supervisor Surface Water Protection Section Washington Regional Office Enclosures cc: Hyman & Robey, PC Washington Regional Office North Carolina Division of Water Quality Internet: www.ncwaterguality.org One 943 Washington Square Mall Phone (252) 946-6481 lvo Carolina Washington, NC 27889 Fax (252)946-9215 /�/iftf/`+�"J/ An Equal Opportunity/Affrma6ve Action Employer- 50% Recycled/10% Post Consumer Paper Gv ►K Rurally -�, -> -7w e-j ,I *Am.. pi I ; i In f pp �I li �� - � < �. ` �- � :' . I J 1 / ! � � it \ l.. 1�� • � 7 �" f' m t .. ' :� n 1�. .r ! , i 1 ` .. .` < % �. i �. �� � � � � S �� ' (' � r , 1_ J _� i / , I State of North Carolina Department of Environment, Health and Natural Resources Washington Regional Office James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary DIVISION OF WATER QUALITY January 8, 1997 AutoZone, Inc. Attn: Mr. Lawrence E. Evans 60 Madison Ave. 10 th Floor Memphis, TN 38103 Subject: Permit No. SW7960601 AutoZone No. 299A High Density Stormwater Project Craven County Dear Mr. Evans: The Washington Regional Office received the completed Stormwater Application for the subject project on January 3, 1997. 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. SW7960601 dated January 8, 1997 to Mr. Lawrence E. Evans. This permit shall be effective from the date of issuance until January 8, 2007 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, o permit are unacceptable, you h adjudicatory hearing upon written following receipt of this permit. of a written petition, conforming Carolina General Statutes, and Administrative Hearings, P.O. Draw Unless such demands are made th binding. 1424 Carolina Avenue, Washington, NC 27889 An Equal Opportunity Affirmative Action Employer r limitations contained in this ave the right to request an request within thirty (30) days This request must be in the form to Chapter 150B of the North filed with the Office of er 27447, Raleigh, NC 27611-7447. is permit shall be final and Telephone (919) 946-6481 FAX (919) 975-3716 50% recycled / 10% post -consumer paper Mr. Lawrence E. Evans January 8, 1997 Page Two If you have any questions, or need additional information concerning this matter, please contact Bill Moore at (919) 946- 6481, extension 264. Sincerely, i,-Roger K. Thorpe Water Quality Supervisor Washington Regional Office cc: Robey Associates Craven County Inspections vWashington Regional Office Central Files State Stormwater Management Systems Permit No. SW7960601 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT, HEALTH 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 AutoZone, Inc Craven County FOR THE construction, operation and maintenance of stormwater management systems 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 for a wet detention pond to serve the AutoZone, Store No. 299A, located at New Bern, NC. This permit shall be effective from the date of issuance until January 8, 2007, 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 pages 4 and 5 of this permit, the Project Data Sheet(s). 3. Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit. 3 DIVISION OF WATER QUALITY PROJECT DATA Project Name: Permit Number: Location: Applicant: Mailing Address: Application Date: Water Body Receiving Stormwater Runoff: Classification of Water Body: Pond/Basin Depth: Permanent Pool Elevation: Total Site Area: Total Impervious Surfaces Allowed: Required Surface Area (SA/DA): AutoZone Store No. 299A SW7960601 Craven County AutoZone, Inc. c/o John Graham 60 Madison Ave Memphis, TN 38103 6/4/96; original 12/23/96; complete Jack Smith Creek SC 5.0 feet 47.0 ft MSL 1.47 acres 0.77 acres 2369 square feet Provided Surface Area: 2450 square feet 4 Required Storage Volume: Provided Storage Volume: Temporary Storage Elevation Controlling Orifice: 3200 cubic feet 4427 cubic feet 48.5 ft MSL 0.75 inch orifice pipe 4. No homeowner/lot owner/developer shall be allowed to 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 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. In addition, the Director may determine that other revisions to the project should require a modification to the permit. 6. 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. II. SCHEDULE OF COMPLIANCE 1. 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 its entirety, vegetated and operational for its intended use prior to the construction of any built -upon surfaces except roads. b. During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately. 5 2. The facilities must be properly maintained and operated at all times. The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals. 3. The permittee shall at all times provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency including, but not limited to: a. Semiannual scheduled inspections (every 6 months) b. Sediment removal C. Mowing and revegetation of side slopes d. Immediate repair of eroded areas e. Maintenance of side slopes in accordance with approved plans and specifications f. Debris removal and unclogging of outlet structure, orifice device and catch basins and piping. 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. 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 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. Mail the Certification to the Washington Regional Office, 943 Washington Square Mall, Washington, North Carolina, 27889, attention Division of Water Quality. 7. A copy of the approved plans and specifications shall be maintained on file by the Permittee for a minimum of five years from the date of the completion of construction. III. GENERAL CONDITIONS 1. 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 water Quality 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. 6 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 143-215.6(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. 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 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 8 th day of January, 1997. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION A. Preston Howarth, Jr., P.E., Director Division of Water Quality By Authority of the Environmental Management Commission Permit Number SW7960601 7 AutoZone Mr. Lawrence E. Evans Craven County Stormwater Permit No. SW7960601 Designer's Certification I, , as a duly registered Professional Engineer in the State of North Carolina, having been authorized to observe (periodically/weekly/full time) the construction of the project, for (Project) (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. Signature Registration Number Date I ROBEY ASSOCIATES 9193309888 P-02 AutoZone of New Bern Vp Detention Pond Maintenance Agreement WASHINIGTON OFFICF I.Operation and maintenance of the detention pond shall be the responsibility of the owner. OCT 1 5 1996 2.Operation of the system is automatic upon the occurrence of a rainfall event, however, there are several II�� E. M. maintenance items that must be attended to. First of all, there must be a lawn maintenance program where the grJ around the pond will be kept mowed during the growing season of the year. It is recommended for aesthetic reasons that the grass be mowed on at least a bi-weekly basis unless actual growing conditions indicate otherwise, in which case the mowing frequency should be modified to suit site conditions. 3. The outlet structure must be inspected periodically for obstructions and trash build-up. This inspection should be done approximately once every three months to include inspection of the orifice in the drawdown device to check for algae or other trash plugging the orifice, inspection of the rip -rap filter around the riser section for trash, cut weeds or grasses which may tend to plug the filter, inspection of the trash rack for the same type of obstructions as with the rip -rap filter and an inspection of the barrel section for any obstructions such as limbs or anything else that may have passed the trash rack and pose a plugging problem. Any obstructions found shall be removed and hauled away from the pond. 4. The forebay area must be checked for sediment deposits, especially during the first year of operation. The frequency of the forebay inspections should be monthly until all disturbed areas have been stabilized or for a minimum of 6 months, whichever is longer. 'fherealter, inspect forebay area every three months- To perform this inspection elevations should be taken along the perimeter of the rip -tap flow distributionNelocity dissipation pad. The bottom should approximately 2' to 2-1/2' below the permanent pool elevation. If this is not the case the rip -rap pad will need to be removed, the sediments excavated to the levels indicated in die details and the xip-rap pads replaced. s. It should be noted that in addition to the inspection frequencies recommended above, the pond and its appurtenances should be inspected after any major storm event that may transport large amounts of debris to the pond. By our signature below, we, as owner/operatorhnanager/administrator of the proposed facility do hereby agree to perform the above mentioned items and maintain the proposed facility in proper operating condition. LAWIZWCE G • GJAtN �e. J.P. aFt7eJ�uPt� i�2 A,rrvzoa.=, TJG Printed NPAC Printed Name Printed Name Signature Signature Printed Name Signature RECEIVED WASHINGTON OF��FppICLE _ , Q 4'77v RECEn/FD WASHINGTOn WA ttL�D IVISION OF ENVIRONMENTAL MANAGEMENT JUN U (� �y NORTH CAROLINA STORMWATER MANAGEMENT PERMIT APPLICATION {L L AL I. GENERAL INFORMATION: \,..,,.nrn1 IProject 111 a,..� 1. Name: A�zo~)6 S� NO 266a 2. State Address) CgAoj`"l coo3v Project Location: (County, Road, no-1 �Pwse -5uyb - nl�et ,/ ?Gm , rJC 3. Owner's Name: A • J • 1JALLAwIZZ-b J2- Phone: Cf'� v& 4. MailingAddress: 33,^5\� Cl,�„� I� &� City NP.k, wtN State Oc zip 2&G�7Z—4lo 5. Application Date: Fee SubmittedDO ✓ ' - Y_ 97 7. Nearest Receiving Stream: �— 3AS ✓aay. Class: 8. 6rojectDescription: Oew 60,3c aac,aJ — 0� Tp1!% 120n,L" Mtee W/ II. PERMIT INFORMATION 1. I Permit No. (will be completed by DEM) 2. Permit Type: /� New Renewal Modification (existing permit no.) 3. Project Type: Low Dehsity Detention Infiltration X Other 4. other State/Federal Permits/Approvals Required: (Check appropriate blanks) X Sediment/Erosion Control CAMA Major 404 Permit III. PROJECT BUILT UPON AREA Drainage Drainage Basin Basin Breakdown of Impervious Areas Classification Buildings Allowable Impervious Roads Total Project Area Parking �L3%3�i SIC. Fi'• .Proposed Impervious Other % Impervious Area Totals 3215.7 Sg.fT. a IV. STORMWATER TREATMENT (Describe how runoff will be treated): cv ecrLcJ 0"J SJTB ># P i P(0 GLc vvr ,5 W C �/ ariw 9d V. DEED RESTRICTIONS AND PROTECTIVE COVENANTS L%z3 /l Deed restrictions and protective covenants are required for all low density projects and all subdivisions prior to the sale of any lot. Please see Attachment A for specific requirements. By your signature below, you certify that the recorded deed restrictions and protective covenants for this project shall include all the items required by the permit, that the covenants will be binding on all parties and persons claiming under them, that they will run with the land, that the covenant cannot be changed or deleted without concurrence from the State, and that they will be recorded prior to the sale of any lot. OWNER'S CERTIFICATION I, ease orint new clear) certify that the information included on this permit application form is correct, that the project will be constructed in conformance with the approved plans, that the deed restrictions will be recorded with all required permit conditions, and that to the best of my knowledge, the proposed project complies with the requirements of 15A NCAC 2H.1O00. I authorile the beloy Anamed person or firm to submit stormwater plans on my behalf. I' A AUTHORIZED AGENT Person or Firm Name: I-eW SLuS rvQ A-J'T' zyN& �^ • Mailing Address: (0\ 0 M AZ) ISO � A4 6 . 10 Ty FUjYL City MG Ai Phone: qO1 Qos - 970 State TN Zip sa)-03 Please submit application, fee and plans to appropriate Regional Office. (see attached map) -2- 3 B /z3 TR-55 GRAPHICAL DISCHARGE METHOD VERSION 1.11 Project AUTOZONE OF NEW BERN User: SCR Date: 10-08-96 County CRAVEN State: NC Checked: Date: Subtitle: DETENTION POND CALCULATIONS Data: Drainage Area 1.47 * Acres WASHINGRECEIVM Runoff Curve Number 87 * OFFICE Time of Concentration: 0.02 * Hours Rainfall Type II OCT 1 0 1996 Pond and Swamp Area NONE ----------------------------------------------------------- Storm Number 1 2 3 4 5 ---------------------- Frequency (yrs) ------ 1 ------ 2 ------ 5 ------ 10 ------ 25 24-Hr Rainfall (in) 3.5 4.3 5.7 6.7 7.7 Ia/P Ratio 0.09 0.07 0.05 0.04 0.04 Used 0.10 0.10 0.10 0.10 0.10 Runoff (in) 2.18 2.91 4.23 5.19 6.16 Unit Peak Discharge 2.083 2.083 2.083 2.083 2.083 (cfs/acre/in) Pond and Swamp Factor 0.01 Ponds Used ---------------------- Peak Discharge (cfs) * - Value(s) provided fi 1.00 7 ,om TR-! 1.00 9 �5 systf 1.00 13 �m rout: 1.00 16 -nes 1.00 19 ). E. K- 50 8.5 0.04 0.10 6.94 2.083 1.00 21 100 9.7 0.03 0.10 8.11 2.083 1.00 25 TR-55 CURVE NUMBER COMPUTATION VERSION 1.11 Project : AUTOZONE OF NEW BERN User: SCR Date: 10-08-96 County : CRAVEN State: NC Checked: Date: Subtitle: DETENTION POND CALCULATIONS Subarea : 1.47 --------------------------------------------------------------------=---------- Hydrologic Soil Group COVER DESCRIPTION A B C D Acres (CN) ------------------------------------------------------------------------------- FULLY DEVELOPED URBAN AREAS (Veg Estab.) Open space (Lawns,parks etc.) Good condition; grass cover > 75% - - .70(74) - Impervious Areas Paved parking lots, roofs, driveways - - .77(98) - Total Area (by Hydrologic Soil Group) 1.47 ------------------------------------------------------------------------------- SUBAREA: 1.47 TOTAL DRAINAGE AREA: 1.47 Acres WEIGHTED CURVE NUMBER:87* ------------------------------------------------------------------------------- * - Generated for use by GRAPHIC method TR-55 Tc and Tt THRU SUBAREA COMPUTATION VERSION 1.11 Project AUTOZONE OF NEW BERN User: SCR Date: 10-08-96 County CRAVEN State: NC Checked: Date: Subtitle: DETENTION POND CALCULATIONS ------------------------------------------------------------------------------- Flow Type 2 year Length Slope Surface n Area Wp Velocity Time rain (ft) (ft/ft) code (sq/ft) (ft) (ft/sec) (hr) ------------------------------------------------------------------------------- Sheet 4.3 40 .01 A 0.011 Shallow Concent'd 100 .01 P 0.014 Time of Concentration = 0.02* Sheet Flow Surface Codes A Smooth Surface F Grass, Dense B Fallow (No Res.) G Grass, Burmuda C Cultivated < 20 o Res. H Woods, Light D Cultivated > 20 e Res. I Woods, Dense E Grass -Range, Short * - Generated for use by GRAPHIC method --- Shallow Concentrated --- --- Surface Codes --- P Paved U Unpaved '-PERMANENT POOL DETENTION PONDS Robev Associates Eneineerm,. DESIGN OF POND P. 0. Box 2705 Elizabeth Cip-, NC 27909 AUTOZONE OF NEWBERN (919)-335-1888 10 Yr, 24 Hr Storm 10/09/96 DETENTION POND Page 1 SA/DA PERCENTAGES FOR 90% TSS REMOVAL WITHOUT VEGETATIVE FILTER % IMPRV 3.0 FT 3.5 FT 4.0 FT 45 FT 5.0 FT 55 FT 6.0 FT 65 FT 7.0 FT 10% 1.3 1.0 0.8 0.7 0.6 0.5 0.4 0.3 02 20% 2.4 2.0 LS 1.7 1.5 1.4 1.2 LO 0.9 30% 3.5 3.0 2.7 25 2.2 1.9 1.6 1.3 1.1 40% 45 4.0 3.5 3.1 2.8 25 2.1 1.8 1.4 30% 5.6 5.0 4.3 3.9 3.50 3.1 2.7 2.3 1.9 60% 7.0 6.0 5.3 4.8 4.3 3.9 3.4 2.9 2.4 70% 8.1 7.0 6.0 5.5 5.0 4.5 3.9 3.4 2.9 80% 9.4 8.0 7.0 6.4 5.7 5.2 4.6 4.0 3.4 90% 10.7 9.0 7.9 7.2 6.5 5.9 5.2 4.6 3.9 100% 12.0 10.0 8.8 8.1 7.3 6.6 5.8 5.1 4.3 WATERSHED AREA: WATERSHED % IMPERVIOUS: PERMANENT POOL ELEVATION: DESIGN PERMANENT POOL DEPTH: SA/DA PERCENTAGE FACTOR: POND SURFACE AREA REQ'D: FOREBAY AREA: AT WIDTH = 0.5 LENGTH, WIDTH= 34.4182 LF LENGTH = 68.8364 LF 1.47 ACRES 53 % ✓ 47 FT 5 FT 3.7 % (FROM ABON'E TABLE TAKEN FROM DESIGN OF STOMP HATE IX CONTROL FACILITIES WORKSHOP MANUAL. PENC 1988) 2369 SF 474 SF vZ (BASED UPON MINIMUM SURFACE AREA) 7�qJ14 Use these dimensions: WIDTH 35 LF Sh LENGTH 70 LF �_4D VOLUME OF 1" R.AFNTTFALL Normal Pool Elevation 47 AREA OF ROOFS: 0.2 AC AREA OF PARKING/CONCRETE: 0.57 AC AREA OF GREEN AREAS: 0.7 / AC VOLUME OF RUNOFF 3199.5 C - voLlcrl=lluoor Lord°:vttil c .9s1+Ica: srozp a,seoi STORAGE- DEPTH FOR MINIMUM AREA = L31 F"I' ELEVATION OF I" RAINFALL = 48.31 DRAWDOWN - WATER QUALITY Q(2 DAYS) = 0.01852 CFS Q(5 DAYS) = 0.00741 CFS I" RUNOFF STAGE 1.31 FT DEPTH OF DRAWDOWN DEVICE BELOW OUTLET 15 FT I" RUNOFF OUTLET DEVICE: 0.78153 INCH DIA HOLE DIAMETER OF HOLE TO USE: 0.75 INCH DIAMETER V STORM RUNOFF DRAWDOWN TIME 3.10245 DAYS A=[Q/(Cd*SQRT(2gh))]* 144 Rad.=SQRT(A/Pl) Dia.=2*Rad. INFLOW HYDROGRAPH Return Year Storm 10 Yr Qp = Peak Discharge = 16 cfs Tc = Time to Concentration = 1.2 min Calculation of Tp (Time to Peak) From SCS NEH 4 , page 15-7 Eqn. 15.4 Lag Time (L) _ (I 0.8*(S+l) 0.7)/(1900*Y^0.5) for L in Hrs where: I = hydraulic length of watershed (ft) S = (1000/CN)-10 CN = approximately same CN from TR-55 Y = avg. watershed land slope in S = (1000/CN)-10 = 1.49425 L= 0.15467 hrs From SCS NEH 4 , page 16-7 Eqn. 16.7 Tp=D/2+L where : D = unit of excess duration rainfall (hrs) L = Lao, Time (hrs) From SCS NEH 4, page 16-5 Eqn. 16.12 D = 0.133 tc where: Tc = Time of Concentration (hrs) - (See Tr-55 Printout) THEREFORE: D = 0.00266 firs Tp = 0.156 hrs = 9.36016 min Volume under Hydrograph = 1.39 * Qp * Tp = 12490.2 Cubic Feet 200 1.49425 = 87 = 02 4 Inflow Hydroeraph SCS Dimensionless Hydrograph Time Discharge Time Discharge Volume Ratio Ratio hr cfs cf 0.00 0.00 0.00 0 0.10 0.03 0.02 0 27 020 0.10 0.03 2 90 0.30 0.19 0.05 3 171. 0.40 031 0.06 5 279 0.50 0.47 0.08 8 422 0.60 0.66 0.09 11 593 0.70 0.82 0.11 13 737 0.80 0.93 0.12 15 836 0.90 0.99 0.14 16 890 1.00 1.00 0.16 16 899 1.10 0.99 0.17 16 890 120 0.93 0.19 15 836 130 0.86 0.20 14 773 1.40 0.78 0.22 12 701 1.50 0.68 0.23 11 611 1.60 0.56 0.25 9 503 1.70 0.46 0.27 7 413 1.80 039 0.28 6 350 1.90 0.33 030 5 297 2.00 0.28 031 4 252 2.20 0.21 0.34 3 372 2.40 0.15 0.37 2 264 2.60 0.11 0.41 2 192 2.80 0.08 0.44 1 138 3.00 0.06 0.47 1 99 3.20 0.04 0.50 1 72 3.40 0.03 0.53 0 52 3.60 0.02 0.56 0 38 3.80 0.02 059 0 27 4.00 0.01 0.62 0 20 4.50 0.01 0.70 0 22 5.00 0.00 0.78 0 0 Volume under hydrograph = 11864 cf Based upon runoff volume = 12490.2 cf Depth rcq'd for mininuan area = 5.09804 STAGE STORAGE FUNCTION OF POND (FOR RECTANGULER DETENTION POND ONLY) Minimum surface area taken at normal Hater level BASIN AREA INCR ACCUM VOLUM VOLUM STAGE In s S Z sf cf cf ft Pond Side Slope (M) = In Z Z est Elevation 2450 0 0 0 Surface area at normal pool 47 2774 1306 1306 0.5 7.17 -0.69 0.50 47.5 3116 1473 2779 1 7.93 0.00 0.97 48 3476 1648 4427 1.5 5.40 0.41 1.45 48.5 3854 1833 6259 2 8.74 0.69 1.96 49 4250 2026 8285 2.5 9.02 0.92 250 495 4664 2229 10514 3 9.26 1.10 3.07 50 5096 2440 12954 3.5 9.47 1.25 3.68 50.5 5546 2661 15614 4 9.66 1.39 433 51 6014 2890 18504 4.5 9.83 1.50 5.02 51.5 6500 3129 21633 5 9.98 1.61 5.75 52 Regression Output: Constant 934346 Ks = S/ZAb = 2882.75 Std Err of Y Est 0.00969 R Squared 0.99962 No. of Observations 7 De:rees of Freedom 5 a Coefficient(s) 1.15215 = b Std Err of Coef. 0.01009 FOR VERTICAL SIDED DETENTION POND SET b=0, AND Ks = SURFACE AREA (SF) STAGE DISCHARGE (FOR RISER/BARRELL SPILLWAY W EMERGENCY WEIR) RISER Dr = 36 Riser Dia. (in) Etop = 49.00 Elev. Top Riser (ft) 52.10 CNvr = 333 Riser weir coeff Cdr = 0.60 Riser orifice coeff H I n = 8 Number of Holes H Id = 2 Hole Dia. (in) EH I = 48.50 Elev. Holes (1) H2n = 0 Number of Holes H2d = 2 Hole Dia. (in) EH2 = I5.00 Elev. Holes (2) 113n = 0 Number of Holes H3d = 2 Hole Dia. (in) EH3 = 15.00 Elev. Holes (3) BARREL: Db = 18 Barrel Dia. (in) Einv = 47.00 Elev Inven Barrel (ft) Farrell Adjustment Factor Cdb = 0.60 Barrel orifice coeff 3 V. /' 3-y0- 2e.rt. EMERGENCY WEIR Cw = 3 Weir coeff Ecr = 51.00 Elev weir coeff (ft) L%N = 20 Weir Length (ft) Riser Riser Riser Elevation Hole Hole Hole Riser Riser Barrel Principal Enneracy (1) (2) (3) (weir) (orifice) , Spillway Weir 47.00 0.0 0.0 0.0 0.0 0.0 0.0 0.00 0.0 47.00 0.0 0.0 0.0 0.0 0.0 0.0 0.00 0.0 47.02 0.0 0.0 0.0 0.0 0.0 0.0 0.00 0.0 47.06 0.0 0.0 0.0 0.0 0.0 0.1 0.00 0.0 47.14 0.0 0.0 0.0 0.0 0.0 0.2 0.00 0.0 47.24 0.0 0.0 0.0 0.0 0.0 0.5 0.00 0.0 47.39 0.0 0.0 0.0 0.0 0.0 1.0 0.00 0.0 47.59 0.0 0.0 0.0 0.0 0.0 1.8 0.00 0.0 47.83 0.0 0.0 0.0 0.0 0.0 3.0 0.00 0.0 48.08 0.0 0.0 0.0 0.0 0.0 4.5 0.00 0.0 48.34 0.0 0.0 0.0 0.0 0.0 6.2 0.00 0.0 48.60 0.3 0.0 0.0 0.0 0.0 7.8 0.26 0.0 48.84 0.5 0.0 0.0 0.0 0.0 8.9 0.49 0.0 49.06 0.6 0.0 0.0 OS 8.3 9.7 1.08 0.0 49.25 0.7 0.0 0.0 3.9 17.0 10.4 4.65 0.0 49.37 0.8 0.0 0.0 7.0 20.6 10.8 7.75 0.0 49.41 0.8 0.0 0.0 8.3 21.9 11.0 9.13 0.0 49.41 0.8 0.0 0.0 8.3 21.8 10.9 9.05 0.0 49.39 0.8 0.0 0.0 7.5 21.1 10.9 8.30 0.0 49.35 0.8 0.0 0.0 6.6 20.3 10.8 7.41 0.0 49.32 0.8 0.0 0.0 5.8 19.3 10.7 6.53 0.0 49.26 0.7 0.0 0.0 4.2 17.4 10.4 4.95 0.0 49.21 0.7 0.0 0.0 3.1 15.7 10.3 3.80 0.0 49.17 0.7 0.0 0.0 2.2 14.0 10.1 2.88 0.0 49.13 0.7 0.0 0.0 1.5 12.5 10.0 2.22 0.0 49.10 0.7 0.0 0.0 1.1 11.0 9.9 1.72 0.0 49.08 0.6 0.0 0.0 0.7 9.6 9.8 1.34 0.0 49.06 0.6 0.0 0.0 0.4 8.2 9.7 L07 0.0 49.04 0.6 0.0 0.0 0.2 6.8 9.6 0.87 0.0 49.02 0.6 0.0 0.0 0.1 5.2 9.6 0.72 0.0 49.01 0.6 0.0 0.0 0.0 3.2 9.5 0.63 0.0 4S.97 0.6 0.0 0.0 0.0 0.0 24 0.58 0.0 48.94 0.6 0.0 0.0 0.0 0.0 9.3 056 0.0 ROUTING OF INFLOW HYDROGRAPH THROUGH POND AND OUTFLOW DEVICE Total Riser Riser Riser Barrel Emer.a Time Inflow Stora,-e Stage Outflow Holes (weir) (orifice) Spillway t (hr) cfs cf Elevation cfs (1+2+3) cfs cfs cfs cfs cfs 0.000 0 0 47.00 0.00 0.00 0.00 0.00 0.00 0.00 0.016 0 0 47.00 0.00 0.00 0.00 0.00 0.00 0.00 0.031 2 26.9573 47.02 0.00 0.00 0.00 0.00 0.01 0.00 0.047 3 116.815 47.06 0.00 0.00 0.00 0.00 0.06 0.00 0.062 5 287.544 47.14 0.00 0.00 0.00 0.00 0.20 0.00 0.078 8 566.103 47.24 0.00 0.00 0.00 0.00 0.48 0.00 0.094 Il 988.433 47.39 0.00 0.00 0.00 0.00 1.00 0.00 0.109 13 1581.49 47.59 0.00 0.00 0.00 0.00 1.84 0.00 0.125 15 2318.33 47.83 0.00 0.00 0.00 0.00 3.03 0.00 0.140 16 3154 48.08 0.00 0.00 0.00 0.00 4.52 0.00 0.156 16 404359 48.34 0.00 0.00 0.00 0.00 6.24 0.00 0.172 16 4942.17 48.60 0.26 0.26 0.00 0.00 7.82 0.00 0.187 15 5817.09 48.84 0.49 0.49 0.00 0.00 8.87 0.00 0.203 14 6625.27 49.06 1.08 0.63 0.45 8.27 9.72 0.00 0.218 12 7337.45 49.25 4.65 0.73 3.92 17.01 10.40 0.00 0.234 11 7777.31 49.37 7.75 0.78 6.96 20.60 10.80 0.00 0.250 9 7953.36 49.41 9.13 0.80 8.33 21.87 10.95 0.00 0.265 7 7943.81 49.41 9.05 0.80 8.25 21.80 10.95 0.00 0.281 6 7848.72 49.39 8.30 0.79 7.51 21.13 10.86 0.00 0.296 5 7733.16 49.35 7.41 0.78 6.63 20.27 10.76 0.00 0312 4 7613.52 49.32 6.53 0.76 5.77 1935 10.66 0.00 0343 3 7383.46 49.26 4.95 0.73 4.21 17.42 10.45 0.00 0.374 2 7200.01 49.21 3.80 0.71 3.09 15.72 10.28 0.00 0.406 2 703732 49.17 2.88 0.69 2.20 14.02 10.12 0.00 0.437 1 6905.76 49.13 2.22 0.67 1.55 12.48 10.00 0.00 0.468 1 6795.01 49.10 1.72 0.65 1.06 11.02 9.89 0.00 0.499 1 6700.87 49.08 134 0.64 0.70 9.59 9.80 0.00 0.530 0 6621.95 49.06 1.07 0.63 0.44 8.21 9.72 0.00 0.562 0 6554.08 49.04 0.87 0.62 0.25 6.79 9.65 0.00 0.593 0 6494.41 49.02 0.72 0.61 0.11 5.24 9.59 0.00 0.624 0 6440.17 49.01 0.63 0.60 0.03 3.24 9.53 0.00 0.702 0 6313.64 48.97 058 0.58 0.00 0.00 9.40 0.00 0.790 0 6173.51 48.94 056 0.56 0.00 0.00 9.25 0.00 49.4129 = maximum state elevation 9.13013 = maximum discharec T A Chart 1 16 14 12 T 6 4 OM 0.000 0.100 0.200 0.300 0.400 0.500 0.600 Time (hrs) 0.700 0.800 ■ INFLOW (cfs) OUTFLOW (cfs) Page 1 AUTOZONE STORE DESIGN LETTER OF TRANSMITTAL William J. Moore PANY: DEHNR Water Quality Section 2ESS: 1424 Carolina Avenue ,ST.: Washington, NC. 27889 NO.: ( 919 ) 946-6481 CC: Sean Robey Date: 9 October 1996 ARCHITECTURAL TEAM OF: n Lew EIIis,Architect 901 / 495-8707 l Rob Hooks,Sr. Draft. 901 / 495-8724 Fax Number -- 901 / 495-8901 Autozone Store Number: 299A Street: 1707 Neuse Blvd. City,St.: New Bern, NC. are sending you C Attached _Under Separate Cover -- Via Fjf2�5T CI A% 411t, _Permit Application _Check Number Copy of Letter _Purchase Order x ied please find the original executed copy of the Detention Pond Maintenance ment. It has been signed by the Senior Vice President of Development. let me know if you need anything additional. ND TO: Iartment 4020 Box 2198 nahis.Tennessee 38101 RECE1vm NrASHINGTON OFGIr' - OCT 1 5 oi6 D. E. M. DELIVERY / STREET ADDRESS Dept. 4020 / 10th Floor 60 Madison Avenue Memphis,Tennessee 38103 w'��_ ROBEY ASSOCIATES ENGINEERING Mr. Bill Moore Dept. of Natural Resources and Community Development Water Quality Section 1424 Carolina Avenue Washington, NC 27889 Subject: Revisions to Sedimentation/Erosion Control Plan Auto Zone Store No. 299A Craven County Dear Mr. Moore: SEANC. ROBEY, P.E. Office (919) 335-1888 Fax (919) 338-9888 October 9, 1996 RECEIVED F wPSNINGTON OF ICE OCT 1 0 1996 p.EM. Based upon your letter dated July 5, 1996, we have enclosed the following information for your review and approval: A corrected copy of Page 1 of the Stormwater Application. 2. Two (2) copies of stormwater calculations. 3. A copy of a letter addressing the variation in the water table. 4. Two (2) copies of Sheets C1.2, C1.3 and CIA. The operation and maintenance agreement will be forwarded to you from AutoZone, Inc, in Tennessee. If you have any questions concerning this submission, please do not hesitate to contact this office at (919) 335-1888. Sincerely, Sean C. Robey, P.E. -I Kimberly D. Hamby cc: Mr. Lew Ellis file Mailing Address: P.O. Box 2705 Elizabeth City, NC 27906-2705 Office : 523 S. Hughes Blvd. Elizabeth City, NC 27909 OCT-03-96 15:55 FROM.AUTOZONE D&C ID:4956901 PAGE 13/14 EnviroSolve, Inc. Engineering, Elrvironmerltal and Management Services TJ ?cx 6153 Greemilie. SC Y606 July 29, 1996 Mr. Lew Blis AutoZone, Inc. Department 4020 - Design 60 Madison Avenue Memphis, TN 38103 Subject Variation in Water Table New Eem, NC EnviroSotve Project: 95018.3 Dear Mr. Ellis. Ptnre (ECG 29 i4 Fin' (8') i/ I.T"'... As per your request. I have reviewed rainfall data for New Bem and made an approximation I or the possible rise in groundwater due to variation in precipitation. Based on rainfall amounts equal to 2(3 of the annual 50 inch rainfall occurring in 90 days, I calculate a rise in groundwater of 4.26 feet Thus, the groundwater, which was measured at 11.0 ft., would rise to 7 ft below grade. In reality, I don't believe that this would occur because the site appeared to have good drainage to a drainage ditch to the west along US Hwy. 70. I hone this calculation is of assistance to you Very truly your, ENVIROSOLVE, INC.,' r 5 p, 9 James G. Kahle, RE Geofechnicai Engineer :i_, o JGKja Peter L Koste, P.E. Review Engineer State of North Carolina Department of Environment, Health and Natural Resources Washington Regional Office James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary W "a IDFE Nf1 DIVISION OF WATER QUALITY WATER QUALITY SECTION July 5, 1996 AutoZone, Inc Attn: Mr. Lew Ellis P.O. Box 2198 Memphis, Tennessee 38101 Subject: Application No. SW7960601 AutoZone Store No 299A Craven County Dear Mr. Ellis: The Washington Regional Office acknowledges receipt of your permit application and supporting information on June 4, 1996. This application has been assigned the number listed above. A preliminary review of your project has been completed. The following additional information is needed before a permit can be issued: - completed stormwater application - stormwater calculations (SA/DA, Storage Volumes, orifice) - soil and water table descriptions - operation & maintenance agreement - redesign for inlets & forebay The above information must be submitted within 30 days, or your application will be returned as incomplete. If you have questions, please feel free to contact me at (919) 946-6481, extension 264. Sincerely, William J. Moore Environmental Engineer Washington Regional Office cc: ashington Regional Office 1424 Carolina Avenue, Washington, NC 27889 Telephone (919) 946-6481 FAX (919) 975-3716 An Equal Opportunity Affirmative Action Employer 50% recycled / 10% post-consuner paper AUTOZONE STORE DESIGN LETTER OF TRANSMITTAL William J. Moore PANY: DEHNR-Water Quality Section DRESS: 1424 Carolina Ave. ,ST.: Washington, N.C. 27889 NO.: 919 / 946-6481 CC: Date: 31 May 1996 Lew EIIis,Architect 901 / 495-8707 Mark Hammer,Sr. Draft. 901 / 495-8724 Rob Hooks,Draftsman 901 / 495-8730 Fax Number -- 901 / 495-8901 Autozone Store Number: 299A Street: 1707 Neuse Blvd. City,St.: New Bern, N.C. are sending you _Attached _Under Separate Cover -- Via %ED E✓ ( ngs Y, Permit Application Check Numbers '7"04J i� 1Y+048 Copy of Letter _Purchase Order REMARKS: Enclosed please find the following : 1.Applications for both Storm Water Management & Erosion Control . 2.Four (4) complete sets of site drawings. (Two for each section) 3.Two (2) sets of storm water calculations and the hydrology report. 4.Two (2) checks to cover the fees for each appilcation. Please forward the appropriate documents to the Land Quality Section. I appreciate your help in this matter, please feel free to contact me if you need anything additional regarding this project. ND TO: iartment 4020 Box 2198 nphis,Tennessee 38101 DELIVERY / STREET ADDRESS Dept. 4020 / 10th Floor 60 Madison Avenue Memphis,Tennessee 38103 REVISED HYDROLOGY REPORT FOR 1.47 ACRE RETAIL AUTO PARTS SITE 1707 NEUSE BLVD. NEW BERN, N.C. AZ PROJECT NO. 0299 SDG PROJECT NO.: 96415 DATE: 04/30/96 (REVISED: 5/31 /96) PREPARED FOR: AUTOZONE, INC. SDG ENGINEERING P.O. BOX 674746 MARIETTA, GEORGIA 30067 (770)955-7706 PURPOSE: This report has been prepared for AutoZone, Inc., for the purpose of determining the extent of existing versus proposed storm water runoff according to common engineering practices. DESCRIPTION: The existing 1.47acre site is located in New Bern, NC. Currently the site is undeveloped. The existing site can be divided into four (4) drainage areas as shown on the attached existing conditions drainage area plan. The proposed retail development can also be divided into five (5) areas as shown on the attached proposed conditions drainage area plan. ASSUMPTIONS USED: Existing Conditions: l) All flow calculations were computed using the rational method. Coefficients used were based on common engineering practice. The rainfall data was averaged between two cities in the area. The rainfall curves for the 2, 5, 10, 25, 50, and 100 yr. storms is attached. 2) Combined C factors for each area based on: C= 0.45 - Pervious Areas C= 0.95 - Impervious Areas 3) All areas are divided per survey information provided by Lanier Surveying Co., Inc., survey dated March 7, 1996. Proposed Conditions: 1) All flow calculations were computed using the rational method. Coefficients used were based on common engineering practice. The rainfall data was averaged between two cities in the area. The rainfall curves for the 2, 5, 10, 25, 50, and 100 yr. storms is attached. 2) Combined C factors for each area based on: C= 0.45 - Pervious Areas C= 0.95 - Impervious Areas 3) All areas are divided per attached grading plan provided by Auto Zone, Inc., Design and Construction, dated 04/22/96. FLOW CALCULATIONS: Existing Conditions: Basin 1 A = 0.36 acres C = 0.45 Tc = 5 min. (Rational Method) Basin 2 A = 0.38 acres C = 0.45 Tc = 5 min. (Rational Method) Basin 3 A = 0.42 acres C = 0.45 Tc = 5 min. (Rational Method) Basin 4 A=0.31 C = 0.45 Tc = 5 min. (Rational Method) Existing Conditions Summary FREQUENCY INTENSITY BASIN I BASIN 2 BASIN 3 BASIN 4 TOTAL (yr) (in/hr) (cfs) (cfs) (cfs) (cfs) (cfs) 2 5.1 0.8 0.9 1.0 0.7 3.4 5 6.1 1.0 1.0 1.2 0.9 4.1 10 7.0 1.1 1.2 1.3 1.0 4.6 25 7.9 1.3 1.4 1.5 1.1 5.3 50 8.8 1.4 1.5 1.7 1.2 5.8 100 9.4 1.5 1.6 1.8 1.3 6.2 Proposed Conditions: Basin IA A = 0.04 acres C = 0.45 A = 0.01 acres C = 0.95 Combined A = 0.05 acres C = 0.55 Tc = 5 min. (Rational Method) Basin I (To Pond) A = 0.28 acres C = 0.45 A = 0.77 acres C = 0.95 Combined A = 1.05 acres C = 0.82 Tc = 5 min. (Hydrograph Routing) Basin 2 A = 0.13 acres C = 0.45 Tc = 5 min. (Rational Method) Basin 3 A = 0.08 acres C = 0.45 Tc = 5 min. (Rational Method) Basin 4 A = 0.14 acres C = 0.45 A = 0.02 acres C = 0.95 Combined A = 0.16 acres C=0.51 Tc = 5 min. (Rational Method) Developed Conditions Summary FREQUENCY INTENSITY BASIN IA BASIN 1B 13ASIN2 13ASIN 3 BASIN TOTAL (yr) (in/hr) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 2 5.1 0.1 1.1 0.3 0.2 0.4 2.1 5 6.1 0.2 1.3 0.4 0.2 0.5 2.6 10 7.0 0.2 1.3 0.4 0.3 0.6 2.8 25 7.9 0.2 1.4 0.5 0.3 0.6 3.0 50 8.8 0.2 1.5 0.5 0.3 0.7 3.2 100 9.4 0.3 1.6 0.5 0.3 0.8 3.5 The analysis indicates that the developed runoff for the 2-100 year storms will be reduced. A routing printout for the detention pond in Basin 1B is attached. SCALE 1:24000 1/2 0 MILE 1000 0 1000 211100 3 co —T 4000 5000 600C 7000 F11-1 SITE LOCATION MAP AUTOZONE, INC. Neuse Boulevard NEW BERN, NC NEW BERN, NORTH CAROLINA FRONT ROYAL ENVIRONMENTAL SERVICES, INC. Date: 03114/96 Project: 96GO-18� I ' NORTH SCALE: 1:: 4000 1 FIGURE 1 O 0 a L� L 0 ul 0 OPENING 3 SIDES. PAVED INVERT 0.50' (TYP) —� 18" RCP �-- 0.50' (TYP) PRECAST CONC. BOX STANDARD MANHOLE FRAME AND COVER 100 YR OVERFLOW 1 INV. EL. 50.00 6" ORIFICE INV. EL. 47.00 O u-) O r-PROP. GRADE 4"-6" SAND BASE PRECAST CONC. BASE OUTLET STRUCTURE 0 PAGE SDG ENGINEERING MARIETTA, GEORGIA MAY 31, 1996 HYDROLOGIC REPORT FOR � AUTOZONE - NEW BERN STAGE, STORAGE & DISCHARGE POND IDENTIFIER 1 1 = 6 INCH CIRCULAR ORIFICE - INVERT 47 ELEV STORAGE OUTFLOW 2S/T+0 (CU.FT.) (CFS) (CFS) 47.0 0.0 0.0 0.0 48.0 1050.0 0.8 14.8 49.0 3373.0 1.3 46.2 50.0 6154.0 1.6 83.6 51.0 9425.0 1.8 127.5 52.0 13197.0 2.1 178.0 HYDROLOGIC REPORT FOR AUTOZONE - NEW BERN UNIVERSAL RATIONAL HYDROGRAPH Q(PEAK) = C*I*A 2 YEAR STORM FREQUENCY BASIN IDENTIFIER 1B DISCHARGES INTO POND BASIN AREA = RUNOFF COEFF. = RAINFALL INT. = TIME OF CONC. = VOLUME TIME (MIN) 1.05 0.82 5.10 5.00 4463.42 RUNOFF (C.F.S.) 0.0 0.0 2.5 0.5 5.0 1.0 7.5 1.2 10.0 1.5 12.5 2.9 15.0 4.4 17.5 3.5 20.0 2.6 22.5 2.2 25.0 1.9 27.5 1.6 30.0 1.3 32.5 1.1 35.0 0.8 37.5 0.8 40.0 0.8 42.5 0.7 45.0 0.7 47.5 0.4 50.0 0.0 52.5 0.0 55.0 0.0 57.5 0.0 60.0 0.0 62.5 0.0 65.0 0.0 67.5 0.0 70.0 0.0 72.5 0.0 PAGE SDG ENGINEERING MARIETTA, GEORGIA MAY 31, 1996 ACRES IN/HR MINUTES CUBIC FEET PAGE SDG ENGINEERING MARIETTA, GEORGIA 14AY 31, 1996 HYDROLOGIC REPORT FOR AUTOZONE - NEW BERN HYDROGRAPH RESERVOIR ROUTING BASIN IDENTIFIER 1B POND IDENTIFIER 1 2 YEAR STORM FREQUENCY ------------------------------------------------------------------------------ T I1 12 2S1/T 01 2S2/T 02 2S2/T +02 ----------------------------------------------------------------------- 2.5 0.0 0.5 0.0 0.0 0.5 0.0 0.5 5.0 0.5 1.0 0.5 0.0 2.0 0.1 1.9 7.5 1.0 1.2 1.9 0.1 4.0 0.2 3.8 10.0 1.2 1.5 3.8 0.2 6.3 0.3 5.9 12.5 1.5 2.9 5.9 0.3 10.0 0.6 9.4 15.0 2.9 4.4 9.4 0.6 16.2 0.8 15.3 17.5 4.4 3.5 15.3 0.8 22.4 0.9 21.5 20.0 3.5 2.6 21.5 0.9 26.6 1.0 25.6 22.5 2.6 2.2 25.6 1.0 29.4 1.0 28.4 25.0 2.2 1.9 28.4 1.0 31.4 1.0 30.4 27.5 1.9 1.6 30.4 1.0 32.7 1.1 31.7 30.0 1.6 1.3 31.7 1.1 33.4 1.1 32.4 32.5 1.3 1.1 32.4 1.1 33.6 1.1 32.5 35.0 1.1 0.8 32.5 1.1 33.3 1.1 32.3 37.5 0.8 0.8 32.3 1.1 32.8 1.1 31.7 40.0 0.8 0.8 31.7 1.1 32.2 1.1 31.2 42.5 0.8 0.7 31.2 1.1 31.6 1.0 30.6 45.0 0.7 0.7 30.6 1.0 31.0 1.0 29.9 47.5 0.7 0.4 29.9 1.0 30.0 1.0 29.0 50.0 0.4 0.0 29.0 1.0 28.3 1.0 27.3 52.5 0.0 0.0 27.3 1.0 26.3 1.0 25.3 55.0 0.0 0.0 25.3 1.0 24.4 0.9 23.4 57.5 0.0 0.0 23.4 0.9 22.5 0.9 21.5 60.0 0.0 0.0 21.5 0.9 20.6 0.9 19.7 62.5 0.0 0.0 19.7 0.9 18.8 0.9 17.9 65.0 0.0 0.0 17.9 0.9 17.1 0.8 16.2 67.5 0.0 0.0 16.2 0.8 15.4 0.8 14.5 70.0 0.0 0.0 14.5 0.8 13.7 0.8 13.0 72.5 0.0 0.0 13.0 0.8 12.2 0.7 11.5 MAXIMUM ELEVATION = 48.6 FT MAXIMUM STORAGE = 2440.1 CU FT MAXIMUM DISCHARGE = 1.1 CPS HYDROLOGIC REPORT FOR AUTOZONE - NEW BERN UNIVERSAL RATIONAL HYDROGRAPH Q(PEAK) = C-I*A 5 YEAR STOR14 FREQUENCY BASIN IDENTIFIER 1B DISCHARGES INTO POND BAS"IN AREA = RUNOFF COEFF. = RAINFALL INT. = TIME OF CONC. = VOLUME = TIME (MIN) 1.05 0.82 6.10 5.00 5846.62 RUNOFF (C.F.S.) 0.0 0.0 2.5 0.6 5.0 1.3 7.5 1.6 10.0 1.9 12.5 3.6 15.0 5.3 17.5 4.5 20.0 3.8 22.5 3.1 25.0 2.5 27.5 2.1 30.0 1.8 32.5 1.4 35.0 1.1 37.5 1.1 40.0 1.0 42.5 0.9 45.0 0.9 47.5 0.4 50.0 0.0 52.5 0.0 55.0 0.0 57.5 0.0 60.0 0.0 62.5 0.0 65.0 0.0 67.5 0.0 70.0 0.0 72.5 0.0 PAGE SDG ENGINEERING MARIETTA, GEORGIA MAY 31, 1996 ACRES IN/HR MINUTES CUBIC FEET PAGE SDG ENGINEERING MARIETTA, GEORGIA MAY 31, 1996 HYDROLOGIC REPORT FOR AUTOZONE - NEW BERN HYDROGRAPH RESERVOIR ROUTING BASIN IDENTIFIER 1B POND IDENTIFIER 1 5 YEAR STORM FREQUENCY --------------- _ ---------------------------------------- _____ T I1 I2 2S1/T 01 2S2/T 02 2S2/T +02 -------------------------------------------------------------- 2.5 0.0 0.6 0.0 0.0 0.6 0.0 0.6 5.0 0.6 1.3 0.6 0.0 2.5 0.1 2.3 7.5 1.3 1.6 2.3 0.1 5.1 0.3 4.8 10.0 1.6 1.9 4.8 0.3 8.0 0.4 7.5 12.5 1.9 3.6 7.5 0.4 12.5 0.7 11.8 15.0 3.6 5.3 11.8 0.7 20.0 0.9 19.1 17.5 5.3 4.5 19.1 0.9 28.0 1.0 27.0 20.0 4.5 3.8 27.0 1.0 34.4 1.1 33.3 22.5 3.8 3.1 33.3 1.1 39.2 1.2 38.0 25.0 3.1 2.5 38.0 1.2 42.5 1.2 41.3 27.5 30.0 2.5 2.1 41.3 1.2 44.6 1.2 43.4 2.1 1.8 43.4 1.2 46.1 1.2 44.8 32.5 1.8 1.4 44.8 1.2 46.8 1.3 45.5 35.0 1.4 1.1 45.5 1.3 46.8 1.3 45.6 37.5 1.1 1.1 45.6 1.3 46.5 1.3 45.3 40.0 1.1 1.0 45.3 1.3 46.1 1.2 44.9 42.5 1.0 0.9 44.9 1.2 45.6 1.2 44.4 45.0 0.9 0.9 44.4 1.2 44.9 1.2 43.7 47.5 0.9 0.4 43.7 1.2 43.8 1.2 42.5 50.0 0.4 0.0 42.5 1.2 41.8 1.2 40.6 52.5 0.0 0.0 40.6 1.2 39.4 1.2 38.2 55.0 0.0 0.0 38.2 1.2 37.1 1.1 35.9 57.5 0.0 0.0 35.9 1.1 34.8 1.1 33.7 60.0 0.0 0.0 33.7 1.1 32.6 1.1 31.6 62.5 0.0 0.0 31.6 1.1 30.5 1.0 29.5 65.0 0.0 0.0 29.5 1.0 28.4 1.0 27.4 67.5 0.0 0.0 27.4 1.0 26.4 1.0 25.4 70.0 0.0 0.0 25.4 1.0 24.5 1.0 23.5 72.5 0.0 0.0 23.5 1.0 22.6 0.9 21.6 MAXIMU14 ELEVATION = 49.0 FT MAXIMUM STORAGE = 3419.1 CU FT MAXIMUM DISCHARGE = 1.3 CFS HYDROLOGIC REPORT FOR AUTOZONE - NEW BERN UNIVERSAL RATIONAL HYDROGRAPH Q(PEAK) = C*I*A 10 YEAR STORM FREQUENCY BASIN IDENTIFIER 1B DISCHARGES INTO POND BASIN AREA = RUNOFF COEFF. = RAINFALL INT. = TIME OF CONC. = VOLUME = TIME (MIN) 1.05 0.82 7.00 5.00 6695.14 RUNOFF . (C.F.S.) 0.0 0.0 2.5 0.8 5.0 1.5 7.5 1.9 10.0 2.2 12.5 4.1 15.0 6.0 17.5 5.3 20.0 4.6 22.5 3.6 25.0 2.7 27.5 2.3 30.0 1.9 32.5 1.6 35.0 1.2 37.5 1.2 40.0 1.1 42.5 1.1 45.0 1.1 47.5 0.5 50.0 0.0 52.5 0.0 55.0 0.0 57.5 0.0 60.0 0.0 62.5 0.0 65.0 0.0 67.5 0.0 70.0 0.0 72.5 0.0 PAGE SDG ENGINEERING MARIETTA, GEORGIA MAY 31, 1996 ACRES IN/HR MINUTES CUBIC FEET PAGE SDG ENGINEERING MARIETTA, GEORGIA MAY 31, 1996 HYDROLOGIC REPORT FOR AUTOZONE - NEW BERN HYDROGRAPH RESERVOIR ROUTING BASIN IDENTIFIER 1B POND IDENTIFIER 1 10 YEAR STORM FREQUENCY ---------------------------------- ------------------------------- T 21 22 2S1/T 01 2S2/T 02 2S2/T +02 -------------------------------------------------------------- 2.5 0.0 0.8 0.0 0.0 0.8 0.0 0.7 5.0 0.8 1.5 0.7 0.0 2.9 0.2 2.8 7.5 1.5 1.9 2.8 0.2 6.0 0.3 5.6 10.0 1.9 2.2 5.6 0.3 9.4 0.5 8.8 12.5 2.2 4.1 8.8 0.5 14.6 0.8 13.8 15.0 4.1 6.0 13.8 0.8 23.2 0.9 22.2 17.5 6.0 5.3 22.2 0.9 32.6 1.1 31.6 20.0 5.3 4.6 31.6 1.1 40.4 1.2 39.2 22.5 4.6 3.6 39.2 1.2 46.3 1.3 45.1 25.0 3.6 2.7 45.1 1.3 50.1 1.3 48.8 27.5 2.7 2.3 48.8 1.3 52.5 1.3 51.2 30.0 2.3 1.9 51.2 1.3 54.2 1.3 52.9 32.5 1.9 1.6 52.9 1.3 55.1 1.3 53.7 35.0 1.6 1.2 53.7 1.3 55.2 1.3 53.9 37.5 1.2 1.2 53.9 1.3 54.9 1.3 53.6 40.0 1.2 1.1 53.6 1.3 54.5 1.3 53.2 42.5 1.1 1.1 53.2 1.3 54.1 1.3 52.7 45.0 1.1 1.1 52.7 1.3 53.6 1.3 52.2 47.5 1.1 0.5 52.2 1.3 52.5 1.3 51.2 50.0 0.5 0.0 51.2 1.3 50.4 1.3 49.1 52.5 0.0 0.0 49.1 1.'3 47.9 1.3 46.6 55.0 0.0 0.0 46.6 1.3 45.3 1.2 44.1 57.5 60.0 0.0 0.0 44.1 1.2 42.9 1.2 41.7 62.5 0.0 0.0 41.7 1.2 40.4 1.2 39.3 65.0 0.0 0.0 39.3 1.2 38.1 1.1 37.0 0.0 0.0 37.0 1.1 35.8 1.1 34.7 67.5 0.0 0.0 34.7 1.1 33.6 1.1 32.5 70.0 0.0 0.0 32.5 1.1 31.5 1.0 30.4 72.5 0.0 0.0 30.4 1.0 29.4 1.0 28.3 MAXIMUM ELEVATION = 49.2 FT MAXIMUM STORAGE = 4039.7 CU FT MAXIMUM DISCHARGE = 1.3 CFS 0 HYDROLOGIC REPORT FOR AUTOZONE - NEW BERN UNIVERSAL RATIONAL HYDROGRAPH Q(PEAK) = C*I*A 25 YEAR STORM FREQUENCY BASIN IDENTIFIER 1B DISCHARGES INTO POND BASIN AREA = RUNOFF COEFF. = RAINFALL INT. = TIME OF CONC. = VOLUME TIME (MIN) 1.05 0.82 7.90 5.00 7752.87 RUNOFF (C.F.S.) 0.0 0.0 2.5 0.8 5.0 1.7 7.5 2.2 10.0 2.7 12.5 4.7 15.0 6.8 17.5 6.2 20.0 5.5 22.5 4.3 25.0 3.0 27.5 2.6 30.0 2.2 32.5 1.8 35.0 1.4 37.5 1.3 40.0 1.3 42.5 1.2 45.0 1.1 47.5 0.6 50.0 0.0 52.5 0.0 55.0 0.0 57.5 0.0 60.0 0.0 62.5 0.0 65.0 0.0 67.5 0.0 70.0 0.0 72.5 0.0 PAGE SDG ENGINEERING MARIETTA, GE:ORGIA MAY 31, 1996 ACRES IN/HR MINUTES CUBIC FEET PAGE SDG ENGINEERING MARIETTA, GEORGIA MAY 31, 1996 HYDROLOGIC REPORT FOR AUTOZONE - NEW BERN HYDROGRAPH RESERVOIR ROUTING BASIN IDENTIFIER 1B POND IDENTIFIER 1 25 YEAR STORM FREQUENCY ------------------------------------------------------------------------------ T I1 I2 2S1/T 01 2S2/T 02 2S2/T +02 ------------------------------------------------------------------------------ 2.5 0.0 0.8 0.0 0.0 0.8 0.0 0.8 5.0 0.8 1.7 0.8 0.0 3.3 0.2 3.1 7.5 1.7 2.2 3.1 0.2 6.8 0.4 6.4 10.0 2.2 2.7 6.4 0.4 10.9 0.6 10.3 12.5 2.7 4.7 10.3 0.6 17.1 0.9 16.3 15.0 4.7 6.8 16.3 0.9 27.0 1.0 26.0 17.5 6.8 6.2 26.0 1.0 38.0 1.1 36.9 20.0 6.2 5.5 36.9 1.1 47.4 1.3 46.2 22.5 5.5 4.3 46.2 1.3 54.8 1.3 53.4 25.0 4.3 3.0 53.4 1.3 59.4 1.4 58.1 27.5 3.0 2.6 58.1 1.4 62.4 1.4 61.0 30.0 2.6 2.2 61.0 1.4 64.5 1.4 63.1 32.5 2.2 1.8 63.1 1.4 65.8 1.4 64.3 35.0 1.8 1.4 64.3 1.4 66.1 1.4 64.7 37.5 1.4 1.3 64.7 1.4 66.0 1.4 64.6 40.0 1.3 1.3 64.6 1.4 65.8 1.4 64.4 42.5 1.3 1.2 64.4 1.4 65.5 1.4 64.1 45.0 1.2 1.1 64.1 1.4 65.1 1.4 63.7 47.5 1.1 0.6 63.7 1.4 64.0 1.4 62.6 50.0 0.6 0.0 62.6 1.4 61.7 1.4 60.4 52.5 0.0 0.0 60.4 1.4 59.0 1.4 57.6 55.0 0.0 0.0 57.6 1.4 56.3 1.3 54.9 57.5 0.0 0.0 54.9 1.3 53.6 1.3 52.3 60.0 0.0 0.0 52.3 1.3 51.0 1.3 49.7 62.5 0.0 0.0 49.7 1.3 48.4 1.3 47.1 65.0 0.0 0.0 47.1 1.3 45.8 1.2 44.6 67.5 0.0 0.0 44.6 1.2 43.3 1.2 42.1 70.0 0.0 0.0 42.1 1.2 40.9 1.2 39.7 72.5 0.0 0.0 39.7 1.2 38.6 1.1 37.4 MAXIMUM ELEVATION - 49.5 FT MAXIMUM STORAGE = 4851.7 CU FT MAXIMUM DISCHARGE 1.4 CFS HYDROLOGIC REPORT FOR AUTOZONE - NEW BERN UNIVERSAL RATIONAL HYDROGRAPH Q(PEAK) = C*I*A 50 YEAR STORM FREQUENCY BASIN IDENTIFIER 1B DISCHARGES INTO POND BASIN AREA = RUNOFF COEFF. = RAINFALL INT. = TIME OF CONC. = VOLUME = TIME (MIN) 1.05 0.82 8.80 5.00 8624.64 RUNOFF (C.F.S.) 0.0 0.0 2.5 1.0 5.0 1.9 7.5 2.3 10.0 2.7 12.5 5.2 15.0 7.6 17.5 6.8 20.0 5.9 22.5 4.8 25.0 3.7 27.5 3.1 30.0 2.6 32.5 2.1 35.0 1.6 37.5 1.5 40.0 1.5 42.5 1.4 45.0 1.3 47.5 0.7 50.0 0.0 52.5 0.0 55.0 0.0 57.5 0.0 60.0 0.0 62.5 0.0 65.0 0.0 67.5 0.0 70.0 0.0 72.5 0.0 PAGE SDG ENGINEERING MARIETTA, GEORGIA I4AY 31, 1996 ACRES IN/HR MINUTES CUBIC FEET 0 HYDROLOGIC REPORT FOR AUTOZONE - NEW BERN HYDROGRAPH RESERVOIR ROUTING BASIN IDENTIFIER 1B POND IDENTIFIER 1 50 YEAR STORM FREQUENCY PAGE SDG ENGINEERING MARIETTA, GEORGIA MAY 31, 1996 ------------------------------------------------------------------------------ T I1 I2 2S1/T 01 2S2/T 02 2S2/T ------------------------------------------------------------------------------ +02 2.5 0.0 1.0 0.0 0.0 1.0 0.1 0.9 5.0 1.0 1.9 0.9 0.1 3.7 0.2 3.5 7.5 1.9 2.3 3.5 0.2 7.5 0.4 7.1 10.0 2.3 2.7 7.1 0.4 11.7 0.6 11.1 12.5 2.7 5.2 11.1 0.6 18.3 0.9 17.4 15.0 5.2 7.6 17.4 0.9 29.3 1.0 28.3 17.5 7.6 6.8 28.3 1.0 41.6 1.2 40.4 20.0 6.8 5.9 40.4 1.2 51.9 1.3 50.6 22.5 5.9 4.8 50.6 1.3 60.1 1.4 58.7 25.0 4.8 3.7 58.7 1.4 65.8 1.4 64.4 27.5 3.7 3.1 64.4 1.4 69.7 1.5 68.3 30.0 3.1 2.6 68.3 1.5 72.5 1.5 71.0 32.5 2.6 2.1 71.0 1.5 74.2 1.5 72.7 35.0 2.1 1.6 72.7 1.5 74.9 1.5 73.4 37.5 1.6 1.5 73.4 1.5 75.1 1.5 73.6 40.0 1.5 1.5 73.6 1.5 75.1 1.5 73.6 42.5 1.5 1.4 73.6 1.5 75.0 1.5 73.5 45.0 1.4 1.3 73.5 1.5 74.7 1.5 73.2 47.5 1.3 0.7 73.2 1.5 73.6 1.5 72.1 50.0 0.7 0.0 72.1 1.5 71.3 1.5 69.8 52.5 0.0 0.0 69.8 1.5 68.4 1.4 66.9 55.0 0.0 0.0 66.9 1.4 65.5 1.4 64.1 57.5 0.0 0.0 64.1 1.4 62.7 1.4 61.3 60.0 0.0 0.0 61.3 1.4 59.9 1.4 58.5 62.5 0.0 0.0 58.5 1.4 57.2 1.3 55.8 65.0 0.0 0.0 55.8 1.3 54.5 1.3 53.2 67.5 0.0 0.0 53.2 1.3 51.8 1.3 50.5 70.0 0.0 0.0 50.5 1.3 49.2 1.3 48.0 72.5 0.0 0.0 48.0 1.3 46.7 1.3 45.4 MAXIMUM ELEVATION = 49.8 FT MAXIMUM STORAGE = 5520.0 CU FT MAXIMUM DISCHARGE = 1.5 CFS 0 HYDROLOGIC REPORT FOR AUTOZONE - NEW BERN UNIVERSAL RATIONAL HYDROGRAPH Q(PEAK) = C*I"A 100 YEAR STORM FREQUENCY BASIN IDENTIFIER 1B DISCHARGES INTO POND BASIN AREA = 1.05 RUNOFF COEFF. = 0.82 RAINFALL INT. - 9.40 TIME OF CONC. = 5.00 VOLUME = 9403.41 TIME RUNOFF (MIN) (C.F.S.) 0.0 0.0 2.5 1.0 5.0 2.1 7.5 2.6 10.0 3.1 12.5 5.6 15.0 8.1 17.5 7.4 20.0 6.6 22.5 5.3 25.0 4.0 27.5 3.4 30.0 2.8 32.5 2.3 35.0 1.7 37.5 1.6 40.0 1.5 42.5 1.5 45.0 1.4 47.5 0.7 50.0 0.0 52.5 0.0 55.0 0.0 57.5 0.0 60.0 0.0 62.5 0.0 65.0 0.0 67.5 0.0 70.0 0.0 72.5 0.0 PAGE SDG ENGINEERING MARIETTA, GEORGIA MAY 31, 1996 ACRES IN/HR MINUTES CUBIC FEET PAGE SDG ENGINEERING MARIETTA, GEORGIA MAY 31, 1996 HYDROLOGIC REPORT FOR AUTOZONE - NEW BERN HYDROGRAPH RESERVOIR ROUTING BASIN IDENTIFIER 1B POND IDENTIFIER 1 100 YEAR STORM FREQUENCY ------------------------------------------------------------------------------ T I1 I2 2S1/T 01 2S2/T 02 2S2/T +02 ------------------------------------------------------------------------------ 2.5 0.0 1.0 0.0 0.0 1.0 0.1 1.0 5.0 1.0 2.1 1.0 0.1 4.0 0.2 3.8 7.5 2.1 2.6 3.8 0.2 8.2 0.5 7.8 10.0 2.6 3.1 7.8 0.5 13.0 0.7 12.2 12.5 3.1 5.6 12.2 0.7 20.2 0.9 19.3 15.0 5.6 8.1 19.3 0.9 32.1 1.1 31.0 17.5 8.1 7.4 31.0 1.1 45.4 1.2 44.2 20.0 7.4 6.6 44.2 1.2 56.9 1.3 55.6 22.5 6.6 5.3 55.6 1.3 66.2 1.4 64.8 25.0 5.3 4.0 64.8 1.4 72.7 1.5 71.2 27.5 4.0 3.4 71.2 1.5 77.1 1.5 75.6 30.0 3.4 2.8 75.6 1.5 80.4 1.5 78.8 32.5 2.8 2.3 78.8 1.5 82.4 1.6 80.8 35.0 2.3 1.7 80.8 1.6 83.3 1.6 81.7 37.5 1.7 1.6 81.7 1.6 83.5 1.6 81.9 40.0 1.6 1.5 81.9 1.6 83.5 1.6 81.9 42.5 1.5 1.5 81.9 1.6 83.3 1.6 81.8 45.0 1.5 1.4 81.8 1.6 83.1 1.6 81.5 47.5 1.4 0.7 81.5 1.6 82.1 1.6 80.5 50.0 0.7 0.0 80.5 1.6 79.6 1.5 78.1 52.5 0.0 0.0 78.1 1.5 76.6 1.5 75.1 55.0 0.0 0.0 75.1 1.5 73.6 1.5 72.1 57.5 0.0 0.0 72.1 1.5 70.6 1.5 69.1 60.0 0.0 0.0 69.1 1.5 67.7 1.4 66'.3 62.5 0.0 0.0 66.3 1.4 64.8 1.4 63.4 65.0 0.0 0.0 63.4 1.4 62.0 1.4 60.6 67.5 0.0 0.0 60.6 1.4 59.2 1.4 57.9 70.0 0.0 0.0 57.9 1.4 56.5 1.3 55.2 72.5 0.0 0.0 55.2 1.3 53.8 1.3 52.5 MAXIMUM ELEVATION = 50.0 FT MAXIMUM STORAGE 6143.2 CU FT MAXIMU14 DISCHARGE = 1.6 CFS PAGE SDG ENGINEERING MARIETTA, GEORGIA MAY 31, 1996 HYDROLOGIC REPORT FOR AUTOZONE - NEW BERN SUMMARY OF PEAK FLOW RATES FREQ (yr.) INFLOW (c.f.s.) ELEVATION (ft.) POND STORAGE (cu.ft.) ROUTED OUTFLOW (c.f.s.) 2 4.39 48.60 2440.1 1.08 5 5.25 49.02 3419.1 1.26 10 6.03 49.24 4039.7 1.33 25 6.80 49.53 4851.7 1.42 50 7.58 49.77 5520.0 1.50 100 8.09 50.00 6143.2 1.57 _- lz 13ASIN A = 0.36 AC C = 0.45 BASIN 2,,, A = 0.38 AC C = 0.45 EXISTING CONDIT.CNS BASIN 1 A = 0.36 AC C = 0.45 B2 _8 IR; 3 AASIN = 0.38 AC 0.42 AC C = 0.45 0.45 BASIN 4 ' /* BASIN 3 A = 0.31 AC A = 0.42 AC C = 0.45 C = 0.45 BASIN 4 A = 031 Ar, C = 0,45 =EN'lls ala DAI r- -- v 9 RECEIVED DIVISION OF ENVIRONMENTAL MANAGEMENT "SFIIi°JC'�lv - FFICE NORTH CAROLINA STORMWATER MANAGEMENTS PERMIT APPLICATION ,OCT 1 0 1996, I. GENERAL INFORMATION: 1. Project Name: Ac)TOZONE S-apgc Alo ZYgA 2. Project Location: (County, State Road, Address) CTe4vEn/�_/ (, V V/ y / 7 0 7 NEUS E 0(,VD M&W .9&72N NC 3. owner's Name: A T. aqu,4AD %Q• Phone: 4. Mail ingAddress: (3500 Cb91?E1V00A/ 13L-110 city AAFa/��/✓ State AIC Zip o7(55- 5. Application Date: /0 — 9— 9& --ee Submitted: o7o�S 7. Nearest Receiving Stream: 274-.4 Slnlz-h Crz�,e class: B. Project Description: MEL (2,1V T,YL/l770A/ - GYUE S ve/ II. PERMIT INFORMATION 1. Permit No 2 P (will be completed by DEM): Permit Type: L� New Modification (existing permit no.) Project Type: Low Density Infiltration Renewal Detention _Other 4. Other State/Federal Permits/Approvals Required: (Check appropriate blanks) JC Sediment/Erosion Control CAMA Major 404 Permit III. PROTECT BUILT UPON AREA Drainage Drainage Basin �Basin Breakdown of Impervious Areas Classification Cam✓ ((f /VSGt/ Buildings (5808 �F Allowable Impervious Total Project Area PLODosed 1mvervious tJ• �q� % Impervious Area Sd- Roads Parking % —Y r Other Totals 33,635sc of pT 77r>C 9T e2Q 6 o Ao A,)rt zg9 A