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HomeMy WebLinkAboutWQ0024558_Regional Office Historical File Pre 2018 (2)ti Michael F. Easley, Governor William G. Ross Jr., Secretary North Carolina Department of Environment and Naturnl Resources Alan W. Klimek, P.E. Director Division of Water Quality November 8, 2004 Mr. Wayne Lambert, Public Works Director City of Statesville Post Office Box 1111 Statesville, North Carolina 28687 Subject: Permit No. WQ0024558 City of Statesville Statesville Municipal Airport Sewer Improvements Wastewater Collection System Extension Iredell County, North Carolina Dear Mr. Lambert: In accordance with your application received on October 20, 2004, we are forwarding herewith Permit No. WQ0024558, dated November 8, 2004, to the City of Statesville for the construction and operation of the subject wastewater collection system extension. This permit shall be effective from the date of issuance until rescinded, and shall be subject to the conditions and limitations as specified therein. This cover letter shall be considered a part of this permit and is therefore incorporated therein by reference. Please pay particular attention to Permit Condition 3 which requires that the wastewater collection facilities be properly operated and maintained in accordance with 15A NCAC 2H .0227 or any individual system -wide collection system permit issued to the Permittee. Permitting of this project does not constitute an acceptance of any part of the project that does not meet 1) 15A NCAC 2H .0200; 2) the Division of Water Quality's (Division) Gravity Sewer Minimum Design Criteria adopted February 12, 1996, as applicable; 3) and the Division's Minimum Design Criteria for the Fast -Track Permitting of Pump Stations and Force Mains adopted June 1, 2000, as applicable, unless specifically mentioned herein. Division approval is based on acceptance of the certification provided by a North Carolina -licensed Professional Engineer in the application. It shall be the Permittee's responsibility to ensure that the as -constructed project meets the appropriate design criteria and rules.' Failure to comply may result in penalties in accordance with North Carolina General Statute §143-215.6A through §143-215.6C, construction of additional or replacement wastewater collection facilities, and/or referral of the North Carolina -licensed Professional Engineer to the licensing board. Mooresville Regional Office 610 East Center Ave., Suite 301 Mooresville, NC 28115 Phone: (704) 663-1699 Fax: (704) 663-6040 Internet h2o.enr,state.nc.us Customer Service: 1-877-623-6748 • An Equal Opportunity/Affirmative Action Employer — 50% Recycledll0% Post Consumer Paper Nor`thCarolina ,Naturally i • Mr. Wayne Lambert Page 2 November 8, 2004 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 the City of Statesville for the construction and operation of approximately 12,950 linear feet of 8-inch gravity sewer; approximately 3,450 linear feet of 12-inch gravity sewer; a 190-gallon per minute pump station (Back Creek), and a 740-gallon per minute pump station (Third Creek) both with duplex pumps, on -site audible and visual high water alarms, and on -site generators with automatic transfer switches; and approximately 8,390 linear feet of 6-inch force main to serve an airport terminal and Lowe's Hanger as part of the Statesville Municipal Airport Sewer Improvements project, and the discharge of 750 gallons per day of collected domestic wastewater into the City of Statesville's existing sewerage system, pursuant to the application received October 20, 2004, and in conformity with 15A NCAC 2H .0200; the Division's Gravity Sewer Minimum Design Criteria adopted February 12, 1996, as applicable; the Division's Minimum Design Criteria for the Fast -Track Permitting of Pump Stations and Force Mains adopted June 1, 2000, as applicable; and other supporting data subsequently filed and approved by the Department of Environment and Natural Resources and considered a part of this permit. The sewage and wastewater collected by this system shall be treated in the City of Statesville Third Creek WWTP (NPDES No. NC0020591) prior to being discharged into the receiving stream. If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing upon written request within 30 days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150B of North Carolina General Statutes, and filed with the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, NC 27699-6714. Unless such demands are made, this permit shall be final and binding. If you need additional information conceming this matter, please contact Sonja Basinger at (704) 663-1699. Sincerely, for Alan . Klimek, P.E. cc: Iredell County Health Department Mooresville Regional Office, Water Quality Section (WVVTF Permit No. NC0020591) Brian Tripp, WK Dickson & Company, Inc. Water QujaIity Central Files Marie Doklovic, PERCS NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES RALEIGH WASTEWATER COLLECTION SYSTEM EXTENSION PERMIT This permit shall be effective from the date of issuance until rescinded and shall be subject to the r. following specified conditions and limitations: This pemiit.shall become voidable unless, the `wastewater collection' facilities .are constructed in accordance .with the conditions of this permit; 15A NCAC 2H .0200; the Division of Water QuaIity's (Division) -Gravity Sewer Minimum 'Design Criteria adopted ,February 12, 1996, as applicable; the Division's Minimum Design Criteria for the Fast -Track Permitting of Pump Stations and. Force Mains adopted June 1, 2000, as applicable; and other supporting materials unless specifically mentioned herein. 2. This permit shall be effective only with respect to the nature and volume of wastes described in the application and other supporting data. 3. The wastewater collection facilities shall be properly maintained and operated at all times. The Permittee shall maintain compliance with an individual system -wide collection system permit for the operation and maintenance of these facilities as required by 15A NCAC 2H .0227. If an individual • permit is. not required,the following performance criteria shall be met as provided in 15A NCAC 2H .0227: a. The sewer system shall be effectively maintained _and operated at all times to prevent discharge to land or surface waters, and any contravention of the groundwater standards in 15A NCAC 2L .0200 or the surface water standards in 15A NCAC 2B .0200. b. A map of the sewer system shall be developed and shall be actively maintained. 'c. An operation and maintenance plan shall bedeveloped and implemented. • d. Pump stations that are not connected to a telemetry system shall be inspected every day (i.e. 365 days per year). Pump stations that are connected to a telemetry system shall be inspected at least once ,per week. �•�-urF-`.e""S:n. .rxl+ck,.�e`•..,.:<•P _ - .r -.5 3., .. e: =Highi--•-pno...rity_s.a-ewer lines'shall be inspected at'least once perevery six-month"perrod of ime. f. A general observation of the entire sewer system shall be conducted at least once per year. g. Inspection and maintenance records shall be maintained for a period of at least three years. h. Overflows and bypasses shall be reported to the appropriate Division regional office in accordance with 15A NCAC 2B .0506(a), and public notice shall be provided as required by North Carolina General Statute §143-215.1C. 4. This permit shall not be transferable. In the event there is a desire for the wastewater collection facilities to change ownership, or there is a name change of the Permittee, a formal permit request shall be submitted to the Division accompanied by documentation from the parties involved, and other supporting materials as may be appropriate. The approval of this request shall be considered ,on its meritsand may or may not be approved. 5. Construction of the gravity sewers, pump stations, and force mains shall be scheduled so as not to interrupt service by the existing utilities nor result in an overflow or bypass discharge of wastewater to the surface waters of the State. 6., Per 15A NCAC 2H :0220, upon completion of construction ,and prior to operation of these • - permitted facilities, the completed Engineering Certification form attached to .this permit shall be submitted with the required supporting documents to the address provided on the form: A complete certification is.one where .the form is :fully' executed and the supporting documents are provided as applicable. 7. A copy of the construction record drawings shall be maintained on file by the Permittee for the life of the wastewater collection facilities. 8. Failure to abide by the conditions and limitations contained in this permit; 15A NCAC 2H .0200; the Division's Gravity Sewer Design Criteria adopted February 12, 1996 as applicable; the Division's Minimum Design Criteria for the Fast -Track Permitting of Pump Station and Force Mains adopted June 1, 2000 as applicable; and other supporting materials may subject the Permittee to an enforcement action by the Division, in accordance with North Carolina General Statutes §143- 215.6A through §143-215.6C. 9. In the event that the wastewater collection 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 facilities. 10. The issuance of this permit shall not exempt the Permittee from complying with any and all statutes, rules, regulations, or ordinances that may be imposed by other government agencies (local, state and federal) which have jurisdiction, including but not limited to applicable river buffer rules in 15A NCAC 2B .0200, erosion and sedimentationcontrol requirements in 15A NCAC Ch. 4 and under the Division's General Permit NCG010000, and any requirements pertaining to wetlands under 15A NCAC 2B .0200 and 15A.NCAC 2H .0500. 11.Noncompliance"Notification: The Permittee shall ,verbally report to a Division of Water Quality employee at the Mooresville Regional Office, telephone number (704) 663-1699, as soon as possible, but in no case more than 24 hours or on the next working day, following the occurrence or first knowledge of the occurrence of either of the following: a. Any process unit failure, due to known or unknown reasons, that renders the facility incapable of adequate wastewater transport, such as mechanical or electrical failures of pumps, line blockage or breakage, etc.; or b. Any failure of a pumping station or sewer line resulting in a by-pass directly to receiving waters without treatment of all or any portion of the influent to such station or facility. 2 Voice mail messages or faxed information is permissible, but shall not be considered as the initial verbal report. Overflows and spills occurring outside normal business hours may also be reported to the Division of Emergency Management at telephone number (800) 858-0368 or (919) 733-3300. Persons reporting any of the above occurrences shall file a spill report by completing Part 1 of Form CS-SSO (or the most current Division approved form), within five days following first knowledge of the occurrence. This report shall outline the actions taken or proposed to ensure that the problem does not recur. Part ll of Form CS-SSO (or the most current Division approved form) can also be completed to show that they SSO was beyond control. Permit issued this the 8th day of November, 2004. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION i for Alan W. Klimsk, P.E., Director Division of Water Quality By Authority of the Environmental Management Commission Permit Number WQ0024558 • 3 • Fast -Track Engineering Certification Permit No. WQ0024558 November 8, 2004 Complete and submit this form to the permit issuing regional office with the following: • One copy of the project record drawings (plan & profile views of sewer lines) of the wastewater collection system extension • Supporting design calculations (selected pumps, system curve, operating point, available storage if portable generator(s) or storage greater than longest past three year outage reliability option selected) for any pump stations permitted as part of this project o Changes to the project should be clearly identified on the record drawings or in written summary form. Permit modifications are required for any changes resulting in non-compliance with this permit, 'regulations or minimum design criteria. This project shall not be considered complete nor allowed to operate until this Engineer's Certification and all required supporting documentation have been received by the Division. Therefore, it is highly recommended that this certification be sent in a manner that provides proof of receipt by the Division. ENGINEER'S CERTIFICATION ❑ Partial ❑ Final 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 Statesville Municipal Airport Sewer Improvements, iredell County project for the Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation of the construction such that the construction was observed to be built within substantial compliance of this permit; 15A NCAC 2H .0200; the Division of Water Quality's (Division) Gravity Sewer Minimum Design Criteria adopted February 12, 1996 as applicable; the Division's Minimum Design Criteria for the Fast -Track Permitting of Pump Stations and Force Mains adopted June 1, 2000 as applicable; and other supporting materials. North Carolina Professional Engineer's seal, signature, and date: • SEND THIS FORM & SUPPORTING DOCUMENTATION WITH REQUIRED ATTACHMENTS TO THE FOLLOWING ADDRESS MOORESVILLE REGIONAL OFFICE 610 EAST CENTER AVENUE, SUITE 301 MOORESVILLE NC 28115 ATTN: DEE BROWDER The Permittee is responsible for tracking all partial certifications up until a final certification is received. Any wastewater flow made tributary to the wastewater collection system extension prior to completion of this Engineer's Certification shall be considered a violation of the permit and shall subject the Permittee to appropriate enforcement actions. 0 GRAVE tWEf S.PUMPSTATtON,L AND F MAINS Q 2 ce 1 d. P.O. Box 1110 LL 1f North Carolina Street Address State 0 d 0 a. z 1 h. (704) 878-355' Telephone USE THE TAB KEY TO MOVE FROM FIELD TO FIELD! Owner: City of State ville_T Application Number:. (to be completed by DWQ) 1/4/ E r '24 S Full Legal Name (company, municipality, HOA, utility, etc) lb, Wayne Lambert, PE, Director of Public Works __ Signing Official Name and Title (Please review 15A NCAC 2H .0206(b or authorized signing official lc, The legal entity who will own this system is: ❑ Individual ❑ Federal Municipality ❑ State/County El Private Partnership ❑ Corporation ❑ Other (specify): (704) 873-4167 Facsimile 2. Project (Facility) Information, 2a. Sewer System Improvements to Serve the Statesville Munici Airport Brief Project Name (permit will refer to this name) Contact Person: Brian Tripp, PE __.. le. Statesville City 1 g. 28687 _. __.... _ ... Zip Code 2b. Iredell County Where Project is Located Name and Affiliation of Someone Who Can Answer Questions About this Application 3b, 704-334-5348 Phone Number 1. Project iNew 3c. btrj E-mail kdickson.com ification (of an existing permit) If Modification, Permit No.: For modifications, attach a separate sheet clearly explaining the reason for the modification (i.e. adding another phase, changing line size/length, etc,). Only include the modified information in this permit application - do not duplicate project information in B(7) and B(10-11) that has already been included in the original permit. 2, Owner is Public (skip to Item B(3)) ❑ Private (go to Item 2(a)) 2a. If private, applicant will be: 2b. If sold, facilities owned by a (must choose one) Retaining Ownership (i,e, store, church, single office, etc) or Leasing units (lots, townhomes, etc. - skip to Item B(3)) 0© Selling units (lots, townhomes, etc. - go to Item B(2b)) 0 LL. Z 4a, Third Creek Name of WW'TF 5a. cityof Statesvilleu Owner of Downstream Sewer 6. The origin of this wastewater is ❑ Residential Subdivision ❑ Apartments/Condominiums • Mobile Home Park ❑ School 0 Restaurant ❑ Office City of Statesville Owner of Wastewater Treatment Facility (WWTF) Treating ater Treatement Plant b. 1 ( Public Utility (Instruction III) ❑ Homeowner Assoc./Developer (Instruction IV) astewater From This Proje 4b. NC0020591 WWTF Permit No. 5c. Receiving Sewer Size Permit Number of Downst check all that apply): ❑ Car Wash ❑ Institution O Hospital O Church El Nursing Home El Other (specify): Airport 7. Volume of wastewater to be permitted in this project: 750 gallons per day Sewer (if known 100 % Domestic/Commercial % Industrial % Other (specify): If the permitted flow is zero, indicate why: 0 Interceptor Line - Flow will be permitted is subsequent permits that connect to this line ❑ Flow has already been allocated in Permit No, • Rehabilitation or replacement of existing sewer with no new flow expected pp - pp -I --TRACK APPLICATION for GRAVITY SEWERS, PUMP STATIONS, AND FORCE MAINS PAGE 4 W H 0 U 0 H 0 u- Z B. PERMIT 9. Provide the wastewater flow calculations used in determining the permitted flow in accordance with 15A NCAC 2H .0219(1) for Item B(7) or the design flow for line or pump station sizing if zero flow in the space below. Values other than that in 15A NCAC 2H .0219(I)(1-2) must be approved prior to submittal of this application. Submit a separate request to the Division of Water Quality, Non -Discharge Permitting Unit, 1617 Mail Service Center, Raleigh, NC 27699-1617 in accordance with 15A NCAC 2H .0219(1)(3). See Attached Calculations 10. Summary of Sewer Lines to be Permitted (attach additional sheets if necessary) Size (inches) 8 12 6 Length (feet) 12,950 3,450 8,390 ENTER TOTAL LINE LENGTH IN MILES 4.7 11. Summary of Pump Stations to be Permitted (attach additional sheets as necessary) Location ID (self chosen - as shown on Design Flow I Operational Point plans for cross-reference) ; (MGD} GPM @ TDH ' Back Creek PS .105 190 gpm @ 142' Third Creek PS _ .322 __ 740 gpm @ 78' Gravity or Force Main (use the pull down menu) Gravity Gravity Force Main Power Reliability Option (1- dual line feed; 2- permanent generator w1ATS; 3- portable generator wltelemetry; 4-wet well storage) 2 - 480 V, 3 phase elec. service with standby generator 2 - 480 V, 3 phase elec. service with standby generator 12. Does the sewer system comply with the Minimum Design Criteria for the Fast Track Permitting of Pump Stations and Force Mains (latest version), the Gravity Sewer Minimum Design Criteria (latest version) and 15A NCAC 2H .0200 as applicable? ® Yes D No If no, please reference the pertinent minimum design criteria or regulation and indicate why a variance is requested: SUBMIT TWO COPIES OF PLANS, SPECIFICATIONS OR CALCULATIONS PERTINENT TO THE VARIANCE WITH YOUR APPLICATION 13. Have the following permits/certifications been submitted for approval? Wetland/Stream Crossings - General Permit or 401 Certification? Sedimentation and Erosion Control Plan? Stormwater? ® Yes ❑ No ®Yes ❑No ❑Yes ❑No ❑ N/A O N/A ® N/A PTA 11')/111 - RP., 1 nflflt T.TRACK AP: LICATION for GRAVITY SE °%" :RS. PUMP STATIONS, AND FORCE T t. INS PAGE 5 Use the Division's guidance document entitled, "DETERMINING STREAM CLASSIFICATIONS FOR FORM FTA 02/003 (FAST -TRACK SEWER SYSTEMS)" to collect and record the stream classification data below (attach additional sheets a necessary). This document is available from our web site or by contacting the appropriate Division of Water Quality regional office (see instructions for addresses) OR indicate the following:: 0 A Stream Classification is not needed because all parts of the project are at least 100 feet away from any down waterbody; AND, El A Stream Classification is not needed because the design does not depend on wet well storage as a power reliability option for any pump station near a Class C down slope waterbody. Location ID on Map (self chosen - as shown on map for cross-reference) la. USGS Tope Map Name of Waterbody Third Creek County Iredell River Basin Yadkin erbody Stream index 12-108-20-4 Submit the 8.5" x 11" COLOR topographic map as required in Instruction VI regardless of whether a classification is provided! Applicant's Certification: pe Waterbody Classification C 1, Wayne Lambert, PE, attest that this application for Sewer System Improvements to Serve the Statesville Municipal Airport has been reviewed by me and is accurate and complete to the best of my knowledge, 1 understand that if all required parts of this application are not completedand that if all required supporting documentation and attachments are not included, this application package is subject to being returned as incomplete, Note: In accordance with North Carolina General Statutes 143-215.6A and 143-215.6B, any person who knowingly makes any false statement, representation, or certification in any application shall be guilty of a Class 2 misdemeanor which may include a fine not exceed $10,000 as well a civil penalties up to $25,000 per violation, n7ng ©ffic(l Signature 2, Professional ngineer's Certification: 7/30,/D Date i attest that this application for Sewer System Improvements to Serve the Statesville Municipal Airport has been reviewed; by me and is accurate, complete and consistent with the information in the engineering plans, calculations, and all other supporting documentation to the best of my knowledge. 1 further attest that to the best of my knowledge the proposed design has been prepared in accordance with the applicable regulations, Gravity Sewer Minimum Design Criteria for Gravity Sewers adopted February 12, 1996, and the Minimum Design Criteria for the Fast -Track Permitting of Pump Stations and Force Mains adopted June 1, 2000 and the watershed classification in accordance with Division guidance. Although certain portions of this submittal package may have been developed by other professionals, inclusion of these materials under my signature and seal signifies that I have reviewed this material and have judged it to be consistent with the proposed design. Note In accordance with NC General Statutes 143-215.6A and 143-215.6B, any person who knowingly makes any false statement, representation, or certification in any application shall be guilty of a Class 2 misdemeanor which may include a fine not to exceed $10,000 as well as civil penalties up to $25,000 per violation. 2a. Brian L. Tripp, PEA._ Professional Engineer Name 2b. WK Dickson & Co., Inc. Engineering Firm 2c, 616 Colonnade Drive Address Ch arlotte City 2g. 704-334-5348 2h, 704-334-0078 Telephone Facsimile 2e. NC 2f. 28205 State Zip 21. btrpp o wkdickson.co E-mail 11/05/04 • Permit Number WQ0024558 Permit Tracking Slip Program Category Non -discharge Permit Type Gravity Sewer Extension, Pump Stations, & Pressure Sewer Extensions Primary Reviewer sonja.basinger Permitted Flow 750 Facility Fast Track Status Project Type In review New Project Version Permit Classification Individual Permit Contact Affiliation Facility Name Statesville Municipal Airport Sewer improvements Location Address Owner Major/Minor Minor Region Mooresville County Iredell Facility Contact Affiliation _ Owner Name City.of Statesville Dates/Events Owner Type Government - Municipal Owner Affiliation Robert Hites, Jr PO Box 1111 Statesville NC 28687 Scheduled Orig Issue App Received Draft Initiated Issuance 10/20/04 Regulated Activities Public Notice Issue Effective Commercial or industrial, other Wastewater collection Outfall NULL t1SID4 Requested/Received Events Additional information requested Additional information received Expiration Waterbody Name Stream Index Number Current Class Subbasin N49"8 :6109fau!lo04:3 agaunwW 4©:u©!7C1.01d nee 000'14 : L ;aIC DESIGN CALCULATIONS SEWER SYSTEM IMPROVEMENTS FOR THE CITY OF STATESVILLE OCTOBER 2004 WKD #40064.00.CL Prepared for P.O. Box 1111 Statesville, NC 28687 Prepared by W. K. Dickson & Co., Inc. 616 Colonnade Drive Charlotte, North Carolina 28205 704/334-5348 APDIICKSON WKD NO. 40064.03.CL community Infrastructure consultants SHEET NO. 1 OF 3 JOB NAME Statesville Airport Sewer Collection System COMPUTED BY Brian L. Tripp, P.E. DATE 10/19/2004 DATE CLIENT City of Statesville i Initial Proposed Flows CHECKED BY I i r I r t. I. City of Statesville Airport Terminal , I _ + j L ' Offices 1= 5 offices x 25_gpd/office 1125,gpd_ L -I .__. - Passengers j= 25 passengers x 5 gpd/passenger = 125' gpd Subtotal = 250 gpd __ 1 r Lowe's Hanger , _ _ i Offices = 16 ofic_es x_25 _gpd/_o_ffice —Y 400 gpd _ Passengers 20 passengers x 5 'gpd/passenger = 100 ' g i= P g gpd' Subtotal = 500 gpd _ _ __� _- F l Total Proposed Initial Flow'= 75U_gpd _ _ Drainage Area for Back Creek Basin Service Area r Acreage = 340 nacres .@ 40% developed = 1136 acres ; e Assumptions' i Rural Residential Population of 5persons / acre 70 gpd /' capita Residential Flow(QR)_ 15 gpd / capita Commercial Flow (Q .) Industrial Flovv (Q1) =_10% x (QR + Q) Residential QR = 136 acres x 5 persons Nacre x 70 gpd / person QR =. 33.1 gpm Connmmercial .. __ - l Qc =7 gpml Industrial; l Qi = 10% x (33.1 + 7.1)-gp = 4 0 gpm+ Total FIow (Back Creek Basin)[� QT=.QR+.QC+JQI -__ _ r Q` + [T (33.1 7.1 + 4.0) QT='44.2gp - 15gpd : L 1 x 1 day 1 144.0 minutes I person x 11 day / i1440 minutes • t I. 1 WI< DICKSON community Inlros$ructure consultants WKD NO. 40064.03.CL SHEET NO. 2 OF 3 JOB NAME Statesville Airport Sewer Collection System COMPUTED BY Brian L. Tripp, P.E. DATE 10/19/2004 CLIENT City of Statesville [.1 Peaking Factor (for lift station design) Y ; PF [18 + SQRT (P)] / [4 + SQRT (P)] Where i 1 T PF = peaking factor ; i __ SQRT = square; root P =; population_in thousands PF = [18 + SQRT (1361x 5/1000)] h[4 + SQRT (136 x 5/1000)] PF 3.9 -IA ssuine12.5 r - 1 Firea for Third -Creek Basin Service@&@!Area; i I Acreage = 1722± acres c 40% developed 689'acres CHECKED BY . ,J. I 1 { Assumptions Rural Residential Population of [5 persons / acre 70 gpd li capita Residential Flaw (Q) 15 gpd 1 capitaa Commercial Flow (9c) Industrial Flow (QI) 10% x(QR + QC) Residential v 'm QR = 689 acres x 5 persons / acre x 70 gpd /J person x 1 day / 1440 minutes i QR 167.5 gpm € - t I Commilnercial DATE r 689 acres x 5 persons liacre x 15 gpd J person x 1 day / 1440 minutes 1 Qc = 35.9 gpm 1 l industrial i 1 . i s i Q'= 1 °" x (167:5 + 35.9) gpm =I20:3 gpm Total Flowo�(Third Creek Basin), l 1 1 QT QR +' QC +1 QI 1 1 I QT (167.5 -II 35.91 + 203) g pm + QT = 223.7 gpm i Total Flow (Third Creek Basin + Back Creek Basin) QT = (223.7 + 73) gpm 1 IQ, = 3296.7 gpm 1 -, 1 a. --i _ 1. I L.. -. _.. 1 I i !�DICKSON community Inlrastructure consultants JOB NAME CLIENT Statesville Airport Sewer Collection System COMPUTED BY City of Statesville -� Peaking Factor (for lift station design) PF =<[18 : SQRT (P)1 /![4 + SQRT (P)1 CHECKED BY 1 Where PF = peaking factor ' SQRT ! square; root P =; populationiin thousands PF =E[18 + SQRT (689;x 511000)1 l [4 !+ SQRT (68,9 x 5/1000)] PF = 3.39 — A s some 2!5 I_ ! [ 1 WKD NO. 40064.03.CL SHEET NO. 3 OF 3 Brian L. Tripp, P.E. DATE 10/19/2004 Capacity of 8" Gravity Sewers t Assume avg.slope 'of 0.40°/d 1 J Max. Flow, QM = 0.51MGD' �I QM = 0.5.MGD x (1,000;00,0 gpd/MGD) / 1440 min day 1 Sewer'flowing a half full QM / 2 = 173 gpm Capacity of 10" Gravity Sewer i Assume avg. slope' of 0.30% Max. Flow, QM = 0.78 MGD QM .= 0.78 MGD x 000,000 gpd/MGD) l+ 1440 min/day - 542 1 M E Sewer flowing @ half full =: QM / 2 = 271 gpm Q+ E Capacity of 12" Gravity Sewer Assume avg. is! ope'of 0.24% Max. Flow, QM }= 1.08 MGD ; QM �= '1.08 MGD x (1,000,000 igpd/ 75 Sewer flowing @ h'alf1ful = QM / 2 —, 375 gpm ' Capacity of 15" Gravity Sewer — Assume avg.'slope of 0.20% y Max. Flow, , QM ,= 1.95 MGD i DATE i QM i= 1.95 MGD x (1000,000 gp0/MGD) li 14,40 min/day QM 1354 gpm Sewer flowing @ half full =i QM 12_ = 677 gpm 1 I i I i a I i _ L_ 1 1 : I L } IFIF PUMP STATION DESIGN CALCULATIONS Project: Back Creek Pump Station City of Statesville, Iredell County, North Carolina WKD # 40064.00.CL-I Date: September 21, 2004 DESIGN CALCULATIONS I. Narrative This portion of the project will provide for installation of wet well mounted, submersible, non -clog, sewage pumps to serve a portion of the City of Statesville Airport in Iredell County, North Carolina. The pump station equipment will include duplex, vertical non -clog pumps and a standby generator. The structure will include all necessary valves, discharge piping and controls. The proposed electrical service will be 480 volt three phase service. I1. Pump Station Design A. Wastewater Flows 1. Residential 2. Commercial 3. Industrial 225 acres x 5 persons / acre x 225 acres x 5 persons / acre x = 10% (Qr + Qc) 70 gpd = 15 gpd B. Peak Flow 105,188 gpd x (1 day / 24 hrs) x 2.5 x (1 hr / 60 min) = C. Target Pumping Rate Use 190 gpm for design pump capacity 78,750 gpd 16,875 gpd 9,563 gpd 105,188 gpd 183 gpm 190.00 gpm � . E. Piping Pump Discharge Force Main Force Main Length Force Main Length to High Point Force Main Length to Calculate TDH Pump Capacity Velocity at Pumping Rate Friction Coefficient Headloss in FM per 1,000 ft. "Flow Away" Calculation Force Main Storage Average Force Main Detention E. Dimensions and Initial Elevations Wet Well Diameter: Diameter (inside) Surface Area Pump Station Rim Elevation Invert of Influent Line High Level Alarm Lag Pump On Lead Pump On Pump Off Bottom Wet Well Force Main Discharge Elevation 6 " DIP 6"PVC 7,983 ft. 7,009 ft. 7,009 ft. 190 gpm 2.16 fps C = 140 3.02 ft. 542 gpm 4 11,726 gallons 0.11 days If greater than pumping rate, TDH calculated using force main length to high point and high point elevation. Install combination air / vacuum valve at highest point. 8.00 ft. 50.27 sq. ft. 854.75 ft. MSL 844.67 ft. MSL 844.00 ft. MSL 842.00 ft. MSL 841.00 ft. MSL 839.00 ft. MSL 83 7.00 ft. MSL 935.00 ft. MSL Detention Volume = Areax (Pump On - Pump Off) x (7.48 gal./cf) = Pump On Time = Detention Volume / (Pump Capacity - Q) = Run Time per Day - Pump On Time x # of Cycles x 24 hours/day = Pump Off Time = Detention Volume / Q = Pumping Cycle = Pump On + Pump Off = Cycles = 60 min/hr / Pumping Cycle F. System Works 1. Static Head 2. Friction Losses: a. Station Loss Force Main High Point: Pump Off Elevation: Total Static Lift 4" Ductile Iron Pipe 4" Plug Valve 4" Swing Check Valve 4" 90 Degree Bend 4" Tee b. Force Main 960.00 ft. 839.00 ft. 121.00 ft. 6 Force Main (as previously identified) 6 22 1/2 degree bend 6 45 degree bend 752 gal. 6.43 min. 553.62 min. 10.29 min. 16.72 min. 3.6 cycles/hr Force Main Discharge: Pump Off Elevation: Total Static Lift 1 ea. @ 3.00 ft./ea. 1 ea. @ 40.00 ft./ea. 3 ea. @ 15.00 ft./ea. 1 ea. @ 35.00 ft./ea. Total Equivalent Length 1 ea. @ 10.00 ft./ea. 6 ea. @ 15.00 ft./ea. Total Equivalent Length 935.00 ft. 839.00 ft. 96.00 ft. 10 ft. 3 ft. 40 ft. 45 ft. 70 ft. 168 ft. 7,009 ft. 10 ft. 90 ft. 7,109 ft. 3. System curve FCow (gP�i • Stat i c..H'tL Station Hl.. FM H L' Vel. (ft.) Fluid HP. 90 121.0 0.13 5.39 0.02 126.5 5.8 110 121.0 0.18 7.81 0.02 129.0 7.2 130 121.0 0.25 10.64 0.03 131.9 8.7 150 121.0 0.33 13.87 0.05 135.2 10.2 170 121.0 0.41 17.48 0.06 138.9 11.9 0.5.1:. O.fl7 210 121.0 0.61 25.84 0.09 147.5 15.6 230 121.0 0.72 30.58 0.11 152.4 17.7 250 121.0 0.84 35.67 0.13 157.6 19.9 270 121.0 0.97 41.13 0.15 163.3 22.3 290 121.0 1.11 46.95 0.17 169.2 24.8 310 121.0 1.26 53.11 0.19 175.6 27.5 330 121.0 1.41 59.62 0.22 182.3 30.4 350 121.0 1.57 66.48 0.25 189.3 33.5 370 121.0 1.74 73.68 0.27 196.7 36.8 390 121.0 1.92 81.22 0.30 204.44 40.3 Flow Increments: 400 -�- 350 300 250 Ul uJ �200 r G 150 100 50 20 gpm I''TDH (ft.) •....•••••. Fluid HP (50% eff.) 0 100 1 125 150 175 200 FLOW (GPM) 225 250 275 300 pm - rpm -PUMP S STATION DESIGN CALCULATIONS Project: Third Creek Pump Station City of Statesville, Iredell County, North Carolina WKD # 40064.03.CL Date: September 16, 2004 DESIGN CALCULATIONS I. Narrative This portion of the project will provide for installation of wet well mounted, submersible, non -clog, sewage pumps to serve a portion of the City of Statesville Airport in Iredell County, North Carolina. The pump station equipment will include duplex, vertical non -clog pumps and a standby generator. The structure will include all necessary valves, discharge piping and controls. The proposed electrical service will be 480 volt three phase service. II. Pump Station Design A. Wastewater Flows Back Creek Basin 1. Residential 2. Commercial 3. Industrial Third Creek Basin 1. Residential 2. Commercial 3. Industrial Total - Back Creek & Third Creek Basins B. Peak Flow 225 acres x 5 persons / acre x 225 acres x 5 persons / acre x = 10% (Qr + Qc) 689 acres x 5 persons / acre x 689 acres x 5 persons / acre x 10% (Qr + Qc) 70 gpd = 15 gpd = 70 gpd = 15 gpd = 427,295 gpd x (1 day / 24 hrs) x 2.5 x (1 hr / 60 min) = C. Target Pumping Rate Use 740 gpm for design pump capacity' 78,750 gpd 16,875 gpd 9,563 gpd 105,188 gpd 241,150 gpd 51,675 gpd 29,283 gpd 322,108 gpd 427,295 gpd 742 gpm 740.00 gpm E. Piping Pump Discharge Force Main Force Main Length Force Main Length to High Point Force Main Length to Calculate TDH Pump Capacity Velocity at Pumping Rate Friction Coefficient Headloss in FM per 1,000 ft. "Flow Away" Calculation Force Main Storage Average Force Main Detention E. Dimensions and Initial Elevations Wet Well Diameter: Diameter (inside) Surface Area Pump Station Rim Elevation Invert of Influent Line High Level Alarm Lag Pump On Lead Pump On Pump Off Bottom Wet Well 4 " DIP 6"PVC 406 ft. 405 ft. 406 ft. 740 gpm 8.41 fps C = 140 37.36 ft. 0 gpm 596 gallons 0.01 days If greater than pumping rate, TDH calculated using force main length to high point and high point elevation. Install combination air / vacuum valve at highest point. 8.00 ft. 50.27 sq. ft. 807.00 ft. MSL 804.00 ft. MSL 803.00 ft. MSL 801.25 ft. MSL 799.50 ft. MSL 797.75 ft. MSL 795.75 ft. MSL Force Main Discharge Elevation 813.00 ft. MSL Detention Volume - Area x (Pump On - Pump Off) x (7.48 gal./cf) = Pump On Time = Detention Volume / (Pump Capacity - Q) = Run Time per Day = Pump On Time x # of Cycles x 24 hours/day = Pump Off Time = Detention Volume / Q = Pumping Cycle = Pump 0n + Pump Off = Cycles = 60 min/hr / Pumping Cycle = F. System Works 1. Static Head 2. Friction Losses: a. Station Loss Force Main High Point: Pump Off Elevation: Total Static Lift 6 Ductile Iron Pipe 6 Plug Valve 6 Swing Check Valve 6 90 Degree Bend 6 Tee b. Force Main 813.00 ft. 797.75 ft. 15.25 ft. 6" Force Main (as previously identified) 6" 22 1/2 degree bend 6" 45 degree bend 1 ea.@ 1 ea. 3 ea. 658 gal. 0.99 min. 142.15 min. 9.01 min. 9.99 min. 6.0 cycles/hr Force Main Discharge: Pump Off Elevation: Total Static Lift 3.00 ft./ea. 40.00 ft./ea. 15.00 ft./ea. 1 ea. @ 35.00 ft./ea. Total Equivalent Length 1 ea. @ 10.00 ft./ea. 2 ea. @ 15.00 ft./ea. Total Equivalent Length 813.00 ft. 797.75 ft. 15.25 ft. 10 ft. 3 ft. 40 ft. 45 ft. 70 ft. 168 ft. 406 ft. 10 ft. 30 ft. 446 ft. TDH (FEET) (Wdo) MOZU 0 ('.ua %OS) dH P?nitI 0 CT n 3 N O UA a 3 CD E 000 l0 N lfl O 1880 I Co 0 1840 CO N 0000000000 CO O V Co V al V 41- V N V O 01 Co Ot Cr) o CA T. -0:. 0 3. G1 W 01 W In W In W 01 W Cn W U1 W J 01 W Cn W J U1 W v Cn W J U1 W J In W J In W J U1 W Static Fill. (ft.) 15.3 V O W Liz Cr) V Qt In 0t A t0 In 61 N w J to l0 V J I.n V —t V Ln A 0D l.n N N W .44 Cfl 07 41. A V In J .W La N lV 41. N CO Co 40.80 , W 09 EN V W in CD Station HL (ft.) 34.57 N Cn.. -P N w 23.94 N N N N O N J Q N O 01 ." to l01 18.37 J. V — t T rn 15.84 15.04 J UN-1 J W t4D J N - 71 h r V V J Ot CO J Cr) N J in VI J A OD J A J J W Cn J N Co J N N J 6t 11 J C J Q A 0 C4 07 0 CO W 0 00 V 0 09 N - IV '~' - ---._ r W CWn J tOD U1 J O m J O lD 0o A CD A" iD CO .A CO W O CO V CO J V w 'N V U1 V N J Cr. Co J 6'‘ m N T uJ ;-;H P' (3 '. '` _ U1 W 'co In O CD 41. Du —+ 4 Cn .t. 4. N Co .. O W W N tD W In al W W W -1 10 N ti t�7 N >i W N Cn I51 N W V N N --. N O U1 Cal O c 113-._. "T1 C d_ anana wa)s Michael F. Easley, Governor William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Alan W. Klimek, P.E. Director Division of Water Quality October 18, 2004 CERTIFIED MAIL RETURN RECEIPT REQUESTED Mr. Brian Tripp, P.E. W.K. Dickson & Co., inc. 616 Colonnade Drive Charlotte, North Carolina 28205 Subject: Return of Permit Application Package Statesville Municipal Airport Improvements project Wastewater Collection System Extension Iredell County, North Carolina Dear Mr.Tripp: As per your request, the Division of Water Quality's Mooresville Regional Office is returning the enclosed application package (with fee) for the following reasons: ✓ To amend the application to recalculate the flow using 750 gpd for Lowes and Statesville's terminals. ✓ To amend the application to add additional 8-inch gravity sewer. Please be advised that construction and/or operation of wastewater collection system extension without a valid permit is a violation of North Carolina General Statute 143-215.1 and may subject the violator to appropriate enforcement actions in accordance with North Carolina General Statute 143- 215.6. Civil penalties of up to $25,000 per day per violation may be assessed for failure to secure a permit required by North Carolina General Statute 143-215.1. If you should have any questions regarding the acceptance of your application, please do not hesitate to contact me at (704) 663-1699. Thank you for your cooperation. Sincerely, Sonja Basinger Consultant Enclosures (Application + Check No. 94624) CC: Wayne Lambert, City of Statesville, PO Box 1111, Statesville, NC 28687 (No Enclosures) Nor`thCarolina Naturally Mooresville Regional Office 610 East Center Avenue, Suite 301 Mooresville, NC 28115 Phone: (704) 663-1699 Fax: (704) 663-6040 Internet h2o,enr.state,nc.us Customer Service: 1-877-623-6748 An Equal Opportunity/Affirmative Action Employer-50% Recycled/10% Post Consumer Paper Gill 7 A T 17, S March 24, 2006 Ms, Dee Browder Surface Water Projection Section North Carolina Division of Water Quality 610 East Center Avenue, Suite 301 Mooresville, North Carolina 28115 Dear Ms, Browder, tiiIocii0,ottii AND EAT VIVI REII,URCES' MOOFFO7- 71AL OFFICE MAR 2 7 2006 RE: Final Engineering Certification Statesville Municipal Airport Wastewater Collection System .Extension Permit No, WQ0024558 Modification City of Statesville, North Carolina ECT Please find enclosedfor your review one (1) copy of the signed and sealed Final Engineering Certification, one (I.) copy of signed record drawings, and one (1) copy of the pump station design calculations that were signed andsealed by the original design engineer for the above referenced project. If you have any questions or require any additional information regarding this project, please feel free to contact me at 828-328-2024. Sincerely, McGill, ASSOCIATES, P.A. MICHAEL S. APKE, P.E. Senior Project Engineer Enclosures Cc: Robert W. Elites, City Manager Joc Hudson, Director of Public, Utilities Jerry Byerly, Assistant Director of Public tftilities Terry Keever, Interim Director of Public Works Andy Lovingood, McGill Associates 06803/d b24mar6(lin alcert) doi,. E nginCer in • Plaiining • Finance z),,sorpp,,„ p px) I p{611kOrv, NC 2,\Y>(1 • 1.2J6 l..a.nc 2.,‘II)/)1 ppIPPF Fast Track Engineering Certification Permit No. W00024558 Modification February 23, 2006 Complete and submit this form to the permit issuing regional office with the following: • One copy of the project record drawings (plan & profile views of sewer lines) of the wastewater collection system extension • Supporting design calculations (selected pumps, system curve, operating point, available storage if portable generator(s) or storage greater than longest past three year outage reliability option selected) for any pump stations permitted as part of this project • Changes to the project should be clearly identified on the record drawings or in written summary form. Permit modifications are required for any changes resulting in non-compliance with this permit, regulations or minimum design criteria. This project shall not be considered complete nor allowed to operate until this Engineer's Certification and all required supporting documentation have been received by the Division. Therefore, it is highly recommended that this certification be sent in a manner that provides proof of receipt by the Division. I, Michael s. Apke been authorized to observe ENGINEER'S CERTIFICATION El Partial [v�Final , as a duly registered Professional Engineer in the State of North Carolina, having the Statesville Municipal Airport, Iredell County project for the Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation of the construction such that the construction was observed to be built within substantial compliance of this permit; 15A NCAC 2H .0200; the Division of Water Quality's (Division) Gravity Sewer Minimum Design Criteria adopted February 12, 1996 as applicable; the Division's Minimum Design Criteria for the Fast -Track Permitting of Pump Stations and Force Mains adopted June 1, 2000 as applicable; and i IcGctt Associa.ks did not design N1is pram♦ was wms not presr.#f 1 other supporting materials. proyFJ.t oioservahN, doKit3 +a1*�" "M". Mc;, 11 ,4sracl.iCs war re.16. by •liu. C�47 cf Si�.l<sv;lie a;rftr coosietuAiu►+ was cOmfaCkoejf re.vlrw fit IAsIjere ei" °Aid prov;ate 0. culAcici.km 'b rJ413 tlpoyt rc,ncui 06 1$4 piwAs awd a oLh pro4+.24 fit. CiL"1 crdikdor, a•t+.� 4k c4,4.4> , 4 &PpIicJ *f Ay anJ Fi*4JJ vvek1 4o 1fh (yesf e� D pvt a6iF:lw-, IAA bi2.eve - hm,t C�tf�r�oiiw� WitS toniplc•i•t4 Wi*'oh rJ,/ iw -✓ C004Pti.h.0 of per"•f Modi•q-cclioi+ WQ Dd ZN 556. SEND THIS FORM & SUPPORTING DOCUMENTATION WITH REQUIRED ATTACHMENTS TO THE FOLLOWING ADDRESS MOORESVILLE REGIONAL OFFICE SURFACE WATER PROTECTION 610 EAST CENTER AVENUE, SUITE 301 MOORESVILLE NC 28115 North Carolina Professional Engineer's seal, signature, and date: The Permittee is responsible for tracking all partial certifications up until a final certification is received. Any wastewater flow made tributary to the wastewater collection system extension prior to completion of this Engineer's Certification shall be considered a violation of the permit and shall subject the -Permittee to appropriate enforcement actions.