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NC0074012_PERMIT ISSUANCE_20100617
NPDES DOCUMENT SCANNING COVER SNEET NPDES Permit: NC0074012 Lincoln County/Forney Crk WWTP Document Type: Permit Issuance Wasteload Allocation Authorization to Construct (AtC) Permit Modification Complete File - Historical Rescission Instream Assessment (67b) Environmental Assessment (EA) Permit History Document Date: June 17, 2010 This document ie priaated on reuiae paper - more a azy ooateat on tlae a"eirei-se Bide North Carolina Beverly Eaves Perdue Governor Mr. H. Burns Whittaker County of Lincoln 115 West Main Street Lincolnton, NC 28092 AjA j NC®ENR Department of Environment and Natural Resources Division of Water Quality Coleen H. Sullins Director June 17, 2010 P.E.. Public Works Director Subject: Issuance of NPDES Permit NCO074012 Lincoln County — Middle Forney Creek WWTP Lincoln County Dear Mr. Whittaker: Dee Freeman Secretary Division personnel have reviewed and approved your application for renewal of the subject permit. Accordingly, we are forwarding the attached NPDES discharge permit. This permit is issued pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the U.S. Environmental Protection Agency dated October 15, 2007 (or as subsequently amended). This final permit includes no changes from the draft perm t sent to you on April 28, 2010. If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30) days following receipt of this letter. This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings (6714 Mail Service Center, Raleigh, North Carolina 27699-6714). Unless such demand is made, this decision shall be final and binding. Please note that this permit is not transferable except after notice to the Division. The Division may require modification or revocation and reissuance of the permit. This permit does not affect the legal requirements to obtain other permits which may be required by the Division of Water Quality or permits required by.the Division of Land Resources, the Coastal Area Management Act or any other Federal or Local governmental permit that may be required. If you have any questions concerning this permit, please contact Bob Sledge at telephone number (919) 807-6398 or via e-mail at bob.sledge@ncdenr.gov. ax Sullins cc: Central Files Mooresville Regional Office/Surface Water Protection Section NPDES Unit 1617 Mail Service Center, Raleigh, North Carolina 27699-1617 One Looation:512 N. Salisbury -St. Raleigh, North Carolina 27604 North CalOhlla Phone: 9 .nc630e1FAX:919-80764921Customer Service:1-877623-6746 ��n �/�'n��� Internet: www.ncwatAltim ity.org Dt [ 6I An Equal Opportunity 1 Alfirma0ve Action Employer Permit NCO074012 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY PERMIT TO DISCHARGE WASTEWATER UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards and regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water Pollution Control Act, as amended, the County of Lincoln is hereby authorized to discharge wastewater from a facility located.at the Middle Forney Creek WWTP 7533 South Little Egypt Road Lincoln County to receiving waters designated as Forney Creek in the Catawba River Basin in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts 1, II, III and IV hereof. This permit shall become effective August 1, 2010. This permit and authorization to discharge shall expire at midnight on February 28, 2015. Signed this day June 17, 2010. ,Aeen H. Sullins. Director Division of Water Quality By Authority of the Environmental Management Commission Permit NCO074012 SUPPLEMENT TO PERMIT COVER SHEET All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked. As of this permit issuance, any previously issued permit bearing this number is no longer effective. Therefore, the exclusive authority to operate and discharge from this facility arises under the permit conditions, requiremerits', terms, and provisions included herein. ' "' , ' " .. The County of Lincoln is hereby authorized to: 1. Continue to operate an existing 0.975 MGD wastewater treatment facility with the following components: ♦ Influent pump station with dual pumps ♦ Parshall flume with ultrasonic flow recorder ♦ Influent sampler ♦ Mechanical bar screen with manual bypass screen ♦ Aerated grit removal basin ♦ Oxidation ditch with 3 channels (floating aerators in channels I & 2) ♦ Dual final clarifiers ♦ Dual chlorine contact chambers ♦ Gas dechlorination ♦ Effluent composite sampler ♦ Cascade post aeration ♦ Return sludge pumping station with dual pumps ♦ Aerobic sludge digesters ♦ Gravity sludge thickener ♦ Sludge holding tank This facility is located on South Little Egypt Road at the Middle Forney Creek WWTP in Lincoln County. 2. Discharge from said treatment works at the location specified on the attached map into Forney Creek, classified C waters in the Catawba River Basin. Permit NC00740L Longit de:81(ii3" NCO074012 Longitude: 81 "Ofl'39" Quad #: 1-14NE Lincoln Count' Utilities Stream Class: C Subbasm: 30833 Dliddle Forney Creek Receiving Stream: Forney Creek I ���k Y' •' �•' .per%�. �"'r���'� ��3i�'-':�� � S t Vl\ Facilitys Location �/1/ozfh SCALE 1:24000 U Permit NC0074012 A. (L) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL During the period beginning on the effective date of this permit and.lasting until expiration, the Permittee is authorized to discharge from outfall 001. Such discharges shall be limited and monitored by the Permittee as specified below: —,EFFLUENT..','. LIMITS '':, MONITORING REQUIREMENTS, CHARACTERISTICS Monthly, -:.Weekly. ;,'Daily '.!Measurement Sample': Sample Location' Average,- ., Average Maximum :'" Frequency Type Flow 0.975 MGD Continuous Recording Influent or Effluent BOD, 5-day (209C) 2 13.0 mg/L 19.5 mg/L 3/Week Composite Influent &Effluent 1 - October 31 BOD(April (Nov mday - MC) 2 November 1 -March 31 26.0 mg/L 39.0 mg/L 3/Week Composite Influent & Effluent Total Suspended Solids2 30.0 mg/L 45.0 mg/L 3/Week Composite Influent & Effluent NH3 as N (April 1 -October 31 1.3 mg/L 3.9 mg/L 3/Week Composite Effluent ' NH3 as N November 1 - March 31 3.2 mg/L 9.6 mg/L 3/Week Composite Effluent Dissolved Oxygen 3/Week Grab Effluent, 1 Upstream & Downstream Fecal Coliform (geometric mean) 200 / 100 ml 400 / 100 ml 3/Week Grab Effluent U stream & Downstreamt Total Residual Chlorine4 23 ug/L 3/Week Grab Effluent Temperature (9C) Daily Grab Effluent Temperature (MC) See Footnote 1 Grab Upstream & Downstreamt Total Nitrogen NO2+NO3+TKN Quarterly Composite Effluent Total Phosphorus Quarterly Composite Effluent pH >_ 6.0 and :5 9.0 standard units Weekly Grab Effluent Footnotes: 1. Upstream = at least 50 feet upstream from the outfall. Downstream = at least I mile downstream from the outfall. Instream samples shall be collected three times per week from June I — September 30, then weekly for the remaining months of the year. 2. The monthly average effluent BOD and Total Suspended Solids Concentrations shall not exceed 15% of their respective influent values (85% removal). 3. The daily average dissolved oxygen effluent concentration shall not be less than 5.0 mg/L. 4. The Division shall consider all effluent TRC values reported below 50 µg/L to be in compliance with the permit. However, the Permittee shall continue to record and submit all values reported by a North Carolina certified laboratory (including field certified), even if these values fall below 50 Ftg/L There shal I be no discharge of floating solids or visible foam in other than trace amounts. The Charlotte Observer Publishing Co. Charlotte, NC North Carolina ) ss Affidavit of Publication Mecklenburg County) THE CHARLOTTE OBSERVER --------------------------------------------------------------------------- DINA SPRINKLE NCDENR/DWO/POINT SOURCE BRANCH 1617 MAIL SERVICE CENTER RALEIGH NC 27699 REFERENCE: 30063432 6462133 County Of Lincoln I Before the undersigned, a Notary Public of said County and State, duty authorized to administer oaths affirmations, etc., personally appeared, being duly sworn or affirmed according to Law, Both depose and say that he/she is a representative of The Charlotte Observer Publishing Company, a corporation organized and doing business under the laws of the State of Delaware, and publishing a newspaper known as The Charlotte Observer in the city of Charlotte, County of Mecklenburg, and State of North Carotinal and that as such he/she is familiar with the books, records, files, and business of said Corporation and by reference to the files of said publication, the attached advertisement was inserted. The following is correctly copied from the books and files of the aforesaid Corporation and Publication. PUBLISHED ON: 05/02 Public Notice " Noon Carolina Environmental Management Cmdm55iouNPDES Unit I617 Mail Service Center ' Raleigh, NC 276991617' Notice of Intent to Issue a NPDES Wastewater Permit The I Caroline Environmental Management Commission proposes as Issue a NPDES wastewater discharge permit to the bookends) listed) below. Written comments regarding the proposed permit will be D8 'so until 30 days after the publish date of this notice. The Dimilor of the NC DNrsron of Water Quality (Di may hold a public hearing should there be a significant degree of public interest. Please mail comments expor information requests to WO at the above address. Interested persons may visit the DWQ at 512 N. Salisbury Street, Raleiggh. NC ke review Inrormatign qn Ole. Adtl�tmnal inlormatron on NPDES parmitsand Ore nghge may be.found on our websse: www.ncwaterquality org, or py calling The Countyy of Linen requested renewal of permit NCOW40t2 for its M'iddie Forney Crack WW IP in Lincoln County this discharge Is ]rested domestic wastewater to Forney Greek, Catawba River Brim. American 'T uetzschler Inc. requested renewal of permit NC0095928 I., its groundwater ramediation facilityin Mecklenburg County: his permitted tliscnargge is treated gg undwaterto an unnamed tributary to the Clubwna Rrver in the Catawba Rirer Basin. Mariners Watch HOA requested renerval of permit NC0p68705 for Marners Watch WWIP, in Mecklenburg Cwnty: this parmated d%,h, rge Is treat.dPdomesto wastewater to lake. Wylie In the Catawba River %.In ermit NC0063789 for Min (Hill Festival requested n Mecklenburg Crenewal of ounty. This ppe fitted discharge is treated domestic wastewater to lrvin5 C. in the Catawba Rrver Basin. Duke Energy Carolinas,. LLC has requested renewal DI permit NCIxx1i for the Allen Steam Station in Gaston County. This tacitlyy tlocharges treated industrial wastewater to the Catawba and 6ruth Fork Catawba Rivers in the Catawba River Basin. Duke Powerhas applied for renewal of is NPDES recharge permit far Rv.mend steam Station (number N00004961) assuaging to the Catawba River in the Creates River Basin. This facility darner g is treated Industrial wastewater t0 Catawba River, Catawba River Bash,_ Duke Energy Carolinas. LLC has applied fora renewal cl permit NC0004967 for Marshall Steam Station in Catawba County. This permitted annoy dacnarppas treated industrial wastewater as IM Catawba River in the Ca1awbe River Basin. This mscnerge may affect future allocations in their watershed. LPfi462133 AD SPACE: 116 LINE FILED ON: 06/04/10 NAME: TITLE: r� ,DATE:. In Test, ny Whereof -I have hereunto set my hand and affixed my seal, the - day and Notar My Commission Expires: My Commission Expires May 27, 2011 IWC Calculations Lincoln County - Forney Creek WWTP NC0074012 Prepared By: Bob Sledge, NPDES Unit Enter Design Flow (MGD): 0.975; Enter s7010(cfs): 0.61 Enter w7Q10 (cfs): _ _ 1.4i Residual Chlorine Ammonia (NH3 as N) (summer) 7Q10 (CFS) 0.6 7010 (CFS) 0.6 DESIGN FLOW (MGD) 0.975 DESIGN FLOW (MGD) 0.975 DESIGN FLOW (CFS) 1.51125 DESIGN FLOW (CFS) 1.51125 STREAM STD (UG/L) 17.0 STREAM STD (MG/L) 1.0 UPS BACKGROUND LEVEL (1 0 UPS BACKGROUND LEVEL 0.22 IWC (%) 71.58 WC (%) 71.58 Allowable Conc. (ug/1) 24 Allowable Conc. (mg/1) 1.3 Ammonia (NH3 as N) (winter) 7010 (CFS) 1.4 Fecal Limit 200/100ml DESIGN FLOW (MGD) 0.975 (If DF>331; Monitor) DESIGN FLOW (CFS) 1.51125 (If DF <331; Limit) STREAM STD (MG/L) 1.8 Dilution Factor (DF) 1.40 UPS BACKGROUND LEVEL 0.22 IWC (%) 51.91 Allowable Conc. (mg/1) 3.3 NPDES Servor/Current Versions/IWC 4/13/2010 Forney Creek WWTP, Lincoln County North Carolina Permit No. NC0074012 B3 — Process Flow Description Middle Forney creek WWTP is a 0.975 MGD wastewater facility consisting of an influent pump station with dual pumps, a Parshall flume with ultrasonic flow measuring and recording, a mechanical bar screen with a manual bypass screen, an aerated grit removal basin measuring 10' X 10.5' X 10' with a capacity of 7,854 gallons. An Oxidation ditch with a total dimension of 106.5' X 124.5' with 3 channels. Channel 1 measures 52' X 15' X 9' with a capacity of 350,000 gallons. Channel 2 measures 36' X 15' X 9' with a capacity of 250,000 gallons. Channel 3 measures 20' X 15' X 9' with a capacity of 150,000 gallons. The three channels have a total of six rotor Orbal disc aerators. Aeromix blowers were added to Channel 1 and 2 in September of 2008 to supplement the oxygen transfer capacity of the Orbal discs in the channels. The plant has'dual final clarifiers with a diameter of 35' X 13.5' and a capacity of 97,104 gallons each, dual chlorine contact chambers measuring 32.3' X 11.6' X 6' with a capacity of 16,918 gallons, and additional single chlorine contact chamber added in the upgrade in May, 2007 that measures 36.5' X 5.7' X 6.25' with a capacity of 9,752 gallons and SO2 dechlorination. Also in place are a rectangular effluent flow weir, cascade post aeration, influent and effluent samplers, a DAF sludge thickener which is now in operation, a return sludge pumping station with dual pumps. The pre-existing package plant was converted to aerobic digesters with dual blowers and the final clarifier was converted to a gravity sludge thickener. The aerobic digesters consist of 4 metal tanks, holding 10,500 gallons, 9627 gallons, 19,400 gallons, and 121,455 gallons for a total of 160,972 gallons. The thickened sludge pump station pumps to a sludge holding tank that measures 56' diameter X 20', with a capacity of 368,279 gallons. The sludge holding tank has a sludge recirculating/truck loading pump station with dual pumps that were upgraded in May, 2007. The plant also has a caustic feed system with a recirculation pump and dual feed pumps. _ , 4 /f�cl ,k FXt✓..- . DWK IKSON cornmtmlly Infrashueture conwRanN Ms. Donna Hood NCDENR — Mooresville Office 610 East Center Ave — Suite 301 Mooresville, NC 28115 Re: Middle Forney Creek WWTP NPDES Permit No. NCO074012 WKD Project # 80289.00.CL Dear Ms. Hood: Per our telephone conversation of June 25, 2008, WK Dickson & Co., Inc. (WKD) was retained by Lincoln County to assist In an evaluation of NPDES permit excursions for ammonia nitrogen experienced in May and June, 2008 at the Middle Forney Creek WWTP. Actions taken in an effort to evaluate and correct this problem are summarized as follows: Immediate Operational Actions: a. Sludge wasting and recycle rates were reviewed and adjusted in an attempt to maintain sludge age at 10 day or below. b. Oxidation ditch pH levels were confirmed to be above 7.0 and samples of plant effluent were checked to determine that sufficient alkalinity was present for the nitrification reaction to be maintained. c. Dissolved oxygen levels in the ditch were determined to typically be 0.01 mg/I in outer channel, 0.09 mgA in middle channel and 0.82 mgA in inner channel indicative of inadequate oxygen transfer capacity. ' d. The Envirex 'Orbal' disc aeration system process technical representative was contacted to review the low dissolved oxygen conditions. The representative also came to the site on July 16, 2008 to further evaluate the low dissolved oxygen level and provide recommendations for increasing the oxygen transfer capacity of the existing aeration equipment. e. The operating level of the aeration basin was checked and adjustments attempted to optimize disc submergence to maximize oxygen transfer efficiency for the existing disc aerators. 2. A review of the plant design and current loading determined the following: Design Parameter Flow Influent BOO, Influent NH3-N Req'd Oxygen 616 Colonnade Drive Charlotte, NC 28205 Tel: 704.334.5348 Fax: 704.334.0078 www.wkdickson.com Original Plant 2006 Plant Design Upgrade Design 0.75 mgd 0.975 mgd 250 mgA 250 mgA 20 mg/I 20 mgA 103lbs/hr 134lbs/hr Current Operational Condition 0.62 mgd 391 mg/I 35 mgA 137 Ibs/hr Transportation . Water Resources . Urban Development . Geomatics Design Parameter Standard Oxygen Transfer Rate (SOTR) Field Oxygen Transfer (FOTR) Original Plant Design 166 lbs/hr 84 Orbal Discs 51 rpm & 20' sub. 103 Ibs/hr •" 2006 Plant Upgrade Design 210 lbs/hr 84 Orbal Discs 55 rpm & 20'sub. 123 lbs/hr ' • Current Operational Condition 210 lbs/hr 84 Orbal Discs 55 rpm & 19' sub 118 lbs/hr '" ' Oxygen requirement is based upon 1.21 Ibs oxygen per pound of SODS and 4.6 Ibs of oxygen per pound of ammonia nitrogen. SOTR - Oxygen Transfer @ Standard Condition and Temperature FOTR — Oxygen Transfer ® Field Transfer Elevation and Temperature (Alpha - 0.85, Beta - 0.95, Theata — 1.024, Temperature - 23 C and minimum oxygen in basin — 2.0) •' Oxygen available does not include recovered oxygen in nitrification reaction in Channel Based upon the foregoing evaluations, it was concluded that there is insufficient oxygen transfer capacity available in the existing disc aeration system to meet the current oxygen transfer needs with the elevated 800, and ammonia nitrogen loadings. As corrective actions to bring the plant back into compliance with the NPDES Permit limitations, Lincoln County has secured two (2) AEROMIX, 25 Hp'Turbocharged Tomado' floating aerators on lease agreement for temporary installation within the outer two channels the aeration basin. General descriptive literature of these aerators is attached. Upon installation and operational evaluation of these aerators, alternatives for the permanent correction to the oxygen deficiency will be evaluated and an engineering report submitted to DENR for approval of proposed permanent plant modifications. Should you have any questions regarding this temporary plant modification, please contact me at 704-227-3403. Sincerely,, WK Dik& Co. I Charles R. Froneberger, P.E. Project Manager CC; Mr. Steve Gilbert, P.E., PLS Mr. Pete Starnes, ORC so ►, 1100 M E M O R A N D U M SWK IKSON community Iniroitruclure consultonie 616 Colonnade Drive Charlotte, North Caroline 26205 704.334.5348 tel: 704.334.0076 fax TO: Pete Starnes, ORC Uncoln County Middle Forney Creek WWTP FROM: C.R. (Bob) Froneberger, P.E. DATE: June 27, 2008 RE: Aeration Evaluation Middle Forney Creek WWTP WKD Project No. 80289.00.CL This Is to acknowledge that WK Dickson & Co., Inc. (WKD) has been retained to evaluate the NPDES permit excursions for ammonia nitrogen experienced In May, 2008 at the Middle Fomey Creek WWTP_ WKD was notified of the ammonia nitrogen permit excursions during the month of May, 2008 on June 8, 2008. Actions taken In an effort to correct this problem since that date are summarized as follows: 1. Immediate Operational Actions: a. Sludge westing and recycle rates were reviewed acid adjusted In an attempt to maintain sludge age between 10 and 15 days. b. Oxidation ditch pH levels were confirmed to be above 7.0 and samples of plant effluent were checked to determine that sufficient alkalinity was present for the nitrification reaction to be maintained. c. Dissolved oxygen levels in the ditch were determined to be 0.01 mg/I in outer channel, 0.09 mg/I In middle channel and 0.82 mg/I In Inner channel Indicative of inadequate oxygen transfer capacity. d. The Envirex "Orbal" disc aeration system process technical representative was contacted to discuss the process difficulties encountered and to request Input as to available actions to Increase oxygen transfer efficiency. e. The level of the aeration basin was checked and adjusted to the maximum operational elevation achieving a 19 Inch disc submergence elevation to maximize oxygen transfer efficiency for the existing disc aerators. 2/T'd 66t,89£LU01:01 6996228b01 A3320 A3,180d:W02id OTT:60 8002-6-100 2. A review of the plant design and current loading determined the following: Design Parameter Flow Influent BODS Influent NH3-N Rsq'd Oxygen ` Standard Oxygen Transfer Rate (SOTR) Actual Oxygen Transfer (FOTR) Orialnal Plant Design 0.75 mgd 250 mg/I 20 mgll 103 Ibs/hr 166 lbs/hr 84 Orbal Discs 51 rpm & 20" sub. 103 Ibs/hr •• 2006 Plant Uoarade 0.975 mgd 250 mg/I 20 mg/l 134 Ibs/hr 2101bs/hr 84 Orbal Discs @ 55 rpm & 200 sub. 123 Ibsthr •• Current Condition 0.62 mgd 391 mg/I 35 mg/I 137 Ibs/hr 210 Ibs/hr 84 Orbal Discs @ 55 rpm & 19• sub 118 Ibs/hr •• Oxygen requirement Is based upon 1.21 Ibs oxygen per pound of SODS and 4.6 The of oxygen per pound of ammonla nitrogen. SOTR = Oxygen Transfer @ Standard Condition and Temperature FOTR = Oxygen Transfer @ Field Transfer Elevation and Temperature (Alpha = 0.85, Beta = 0.95, Theata = 1.024, Temperature = 23 C and minimum oxygen in basin = 2.0) •• Oxygen available does not Include recovered oxygen in nitrification reaction In Channel 1. Conclusion: There is Insufficient oxygen transfer capacity in the existing Envlrex Orbal disc aeration system to meet the current oxygen transfer needs under the elevated BOD5 and ammonia nitrogen loadings. 3. Aeration Industries Inc. and Aeromlx Systems Inc. have been contacted requesting proposals for floating directional aerators to be provided on a rental basis for Immediate Installation in the oxidation ditch to provide supplemental aeration. Equipment proposals are now being received'and evaluated. so 11 IN P.P'd 66b89£Lb01L:01 6996228004 )13320 A3Na03:W0H3 UTT:60 8002-6-100 Michael F. Easley, Governor William G. Ross Jr., Secretary North Carolina Deparlment of Environment and Natural Resources Alan W. Klimek, P.E. Director Division of Water Quality December 9, 2005 Mr. Stephen Gilbert, Director of Public Works East Lincoln County Water and Sewer District 115 West Main St. Lincolmon, North Carolina 28092 SUBJECT: Authorization to Construct A to C No. 074012AOI East Lincoln County Water and Sewer District Middle Forney Creek W WTP Lincoln County Dear Mr. Gilbert: A letter of request for Authorization to Construct was received March 14, 2005, by the Division, and final plans and specifications for the subject project have been reviewed and found to be satisfactory. Authorization is hereby granted for the construction of modifications to the existing 0.75 MGD Middle Forney Creek Wastewater Treatment Plant, with discharge of treated wastewater into Forney Creek in the Catawba River Basin. This authorization results in an increase in design and permitted capacity to 0.975 MGD, and is awarded for the construction of the following specific modifications: Installation of dual 2.437 MGD submersible influent sewage pumps, conversion of the existing sludge pump station to a scum pump station with dual 0.144 MGD submersible scum pumps, construction of a new sludge pump station with dual 0.144 MGD submersible sludge pumps, replacement of two 7.5 Hp sludge transfer pump motors with 10 Hp motors, installation of two 10 Hp sludge holding tank mixers, construction of a new chlorine contact chamber, new chlorination and dechlorination facilities, associated piping and appurtenances, in conformity with the project plan, specifications, and other supporting data subsequently filed and approved by the Department of Environment and Natural Resources. This Authorization'to Construct is issued in accordance with Part 11I, Paragraph A of NPDES Permit No. NCO074012 issued December 5, 2005, and shall be subject to revocation unless the wastewater treatment facilities are constructed in accordance with the conditions and limitations specified in Permit No. NC0074012. The sludge generated from these treatment facilities must be disposed of in accordance with G.S. 143-215.1 and in a manner approved by the North Carolina Division of Water Quality. NuihCarolina � 013 194 North Carolina Division of Water Quality 1617 Mail Service Center Raleigh. NC 27699-1617 Phone (919) 733-7015 Customer Service Inlemet'h2o.encstate.nc.us 512 N. Salishury St. Raleigh, NC 27604 FAX (919) 733-2496 1-877-623-6748 An Equal Opportunity/Affirmative Action Employer — 50 % Recycledl10 % Post Consumer Paper 3.2 TREATMENT SYSTEM DESCRIPTION Wastewater treatment within the planning area is currently provided by the ELCWSD Middle Forney Creek WWTP. This plant has a present permitted capacity of 0.75 mgd and operates under NPDES Permit NC0074012. In 2004, Middle Forney Creek WWTP average daily flow was 0.470 mgd or 62.7% of the permitted capacity. Figures 3.2 and 3.3 provide a historical record of the rapid growth and wastewater treatment demand and sewer customers within the area. Based upon the historical area growth, it is projected that additional wastewater treatment capacity will be required by 2007. ELCWSD currently has capacity requests from area developers for a total of 6,464 sewer connections with a current service to only 2272 of these connections. Copies of these capacity request letters and a summary of the status of the respective developments is provided in Appendix H. A potential wastewater flow of 1.875 mgd is projected upon 100% build -out of the present capacity requests. To meet the immediate short -termed demand for wastewater treatment within the present service area, ELCWSD has a pending request to increase the capacity of the Middle Forney Creek WWTP from 0.75 mgd to 0.975 mgd. The NPDES permit application, Engineering Alternative Analysis (EAA) and Authorization to Construct (ATC) have been submitted and are pending approval by the North Carolina Division of Water Quality, Construction Grants and Loans Section with construction expected to begin in the 2006. The current Middle Forney Creek wastewater treatment plant includes the following unit processes: Liquid Treatment Train • Influent Pump Station (Duplex VFD Pumps) • Influent Parshall Flume • Bar Screen • Aerated Grit Chamber • Oxidation . Ditch (3 Channel, Extended Aeration Activated Sludge) Solids Processing Train • Return Activated Sludge Pumps (2) • Waste Activated Sludge Weir • . Dissolved Air Flotation Thickener Aerobic Sludge Digester • Secondary Clarifiers (2) • Chlorination (Chlorine Gas) • Chlorine Contact Basin (2) • Dechlorination (Sulfur Dioxide Gas) • Effluent Reaeration • Gravity Thickener • Sludge Transfer Pump (1) • Holding Tank • Land Application Sludge Disposal The pending plant expansion to 0.975 mgd will include the following general modifications to facilitate the increased permitted plant flow: • Replacement of influent pumps to provide additional peak flow capacity • Modifications to oxidation ditch aeration system to provide additional oxygen transfer capacity • Addition of a new chlorine contact chamber • Replacement of existing chlorine and sulfur dioxide feed systems • Improvements to sodium hydroxide chemical storage and feed system • Replacement of aeration diffusers in aerobic digester 3-2 East Lincoln Water & Sewer District A To C No. 074012AOI Issued December 5, 2005 'a Engineer's Certifications,��,yr�\'" I, /eS )C��Je- 61s a duly registered Professional Engineer in the State of North Carolina, having been authorized to observe (periodically/weekly/full time) the construction of the modifications and improvements to the Middle Forney Creek WWTP, located on Little Egypt Road in Lincoln County for the East Lincoln Water & Sewer District, hereby state that, to the best of my abilities, due care and diligence was used in the observation of the following construction: Installation of dual 2.437 MGD submersible influent sewage pumps, conversion of the existing sludge pump station to a scum pump station with dual 0.144 MGD submersible scum pumps, construction of a new sludge ur station with dual 0.144 MGD submersible sludge pumps, replacement of7.5 Hp sludge transfer pump motors with 10 Hp motors, installation of two 10 Hp sludge holding tank mixers, construction of a new chlorine contact chamber, new chlorination and dechlorination facilities, associated piping and appurtenances, in conformity with the project plan, specifications, and other supporting data subsequently filed and approved by the Department of Environment and Natural Resources. I certify that the construction of the above referenced project was observed to be built within substantial compliance and intent of the approved plans and specifications. We understand that the new limits associated with the modifications to expand to 0.975 MGD now apply. Q�� Signature e'F'U'��"° Registration No. 6�Ed Date 5-6 0 U Send to: Construction Grants & Loans DENR/DWQ 1633 Mail Service Center Raleigh, NC 27699-1633 DENR/DWQ FACT SHEET FOR NPDES PERMIT DEVELOPMENT NPDES No. NCO074012 Facility Information Applicant/Facility Name: Lincoln Count — Forne Creek WWTP Applicant Address: 115 West Main Street 2 Floor Citizens Cit. Lincohnon. NC 28092 Facility Address: 7533 South Little Egypt Road; Stanley, NC 28164 Permitted Flow 0.975 MGD Type of Waste: Domestic (100%) ( no pretreatment program) Facility/Permit Status: Class Ill /Active; Renewal Count : Lincoln County Miscellaneous Receiving Stream: Forney Creek Regional Office: Mooresville (MRO) Stream Classification: C State Grid / USGS Quad: F14NE 303(d) Listed? No Permit Writer: Bob Sledge Subbasin: 03-08-33 Date: April 13, 2010 Drainage Area (mi'): 7.8 Summer 7Q10 (cfs) 0.6 Winter 7Q 10 (cfs) 1.4 �' 30Q2 (cfs) 1.7 Average Flow (cfs): 9 fWC (%): 72% Lat. 350 26' 53" N Long. 810 00' 39" W BACKGROUND The Lincoln County — Forney Creek WWTP is a Class III facility with a permitted flow of 0.975 MGD. The plant treats wastewater from residential and commercial sources. The existing permit was issued on December 5, 2006 and expired on February 28, 2010. The Permittee submitted Standard Form A on September 2, 2009 in order to request renewal of the permit. Instream Monitoring, Verification of Existing Conditions and DMR Data Review This facility discharges to Forney Creek in Subbasin 03-08-33 of the Catawba River Basin. Forney Creek is classified C waters at the point of discharge and is not on the 2008-303(d) list. Lincoln County is required to sample upstream and downstream of the discharge for pH, fecal coliform, dissolved oxygen and temperature. Little difference between upstream and downstream temperature values was noted and temperatures appear seasonally appropriate. Dissolved oxygen values were often observed as being low in the stream, sometimes below the 5.0 mg/L standard. However, such conditions were typically seen both upstream and downstream of the outfall. Elevated fecal counts were observed in the data, but elevated downstream numbers could not be readily attributed to the effects of the discharge. pH values are in the range of normal. Fact Shcet NPD S NCUU740! 2 Renewal Na" I Effluent DMR data from January 2005 through October 2009 were reviewed. Data for conventional parameters are summarized in Table 1. The Permittee was consistently compliant with the permit limits for those parameters during the period of review. Table 1. NCO074012 Conventional Data (January 2005-October 2009) BOD and TSS % Removal during this time period were 98% and 97.1%a, respectively. This facility also collects data for total nitrogen, total phosphorus, ammonia nitrogen (NH3-N), and total residual chlorine. These are summarized in Table 2. Table 2. NCO074012 Nutrient and Toxicant Data (January 2005-October 2009) Correspondence A review of correspondence files for the 2005-2009 period revealed no recurring problems or major deficiencies in the facility's compliance history. The facility was issued civil penalties on 4 occasions during the period of review. The violations that led to assessments occurred in the spring of both 2008 and 2009. Ammonia was the primary parameter of concern. Penalties were partially remitted in the cases from May and June 2008, as it was found the violations occurred due to design deficiencies in the newly upgraded W WTP. Additional aeration has been added to the process since those incidents. All assessed penalties have been paid in full. Reviews of inspections conducted during the period of review indicate the facility is consistently well operated. The facility underwent an expansion during the latest permit cycle to bring the facility to its current design capacity (0.975 MGD). Construction was completed in May 2007. It was later discovered that the facility's aeration capacity had been underdesigned. Additional aeration was provided in two of three oxidation ditch channels through the use of Aeromix blowers. Their addition appears to have improved ammonia levels in the WWTP effluent. PERMITTING STRATEGY Waste Load Allocation (WLA) The Division prepared the last WLA for the 1999 permit renewal. The previous and current effluent limits were based on euidelincs and water quality standards. The Division has judged previous parameters and limits to be appropriate for renewal. Fact shec t NPI)ES NC0074012 Rcn0Val PaFc 2 SUMMARY OF PROPOSED CHANGES o The facility description has been modified to reflect the introduction of 2 floating aerators in the system. The County will be advised that it needs to obtain engineering approval for these units from the Construction Grants & Loans Section. o A footnote is being added discussing reporting and compliance determination for Total Residual Chlorine values. PROPOSED SCHEDULE FOR PERMIT ISSUANCE Draft Permit to Public Notice: Permit Scheduled to Issue: NPDES DIVISION CONTACT April 27. 2010 June 21, 2010 If you have questions regarding any of the above information or on the attached permit, please contact Bob Sledge at (919) 807-6398 or via e-mail at bob.sledge@ncdenr.gov. NAME: 'if /jam DATE: 27 20I e REGIONAL Oh�PICE COMMENTS NAME: DATE SUPERVISOR: DATE Pact Sheet NPUI_'S N00074012 Renewal Patc 3 SOC Priority Project: No To: Permits and Engineering Unit Water Quality Section Attention: Charles Weaver Date: November 13. 2009 NPDES STAFF REPORT AND RECOMMENDATION County: Lincoln Permit No. NC0074012 PART I - GENERAL INFORMATION 1. Facility and address: Foumey Creek WWTP 7533 South Little Egypt Road Stanley, North Carolina 28164 2. Date of investigation: November 5, 2009 3. Report prepared by: B. Dee Browder, Environmental Engineer I 4. Persons contacted and telephone number: Mr. Barn' Mckinnon, (704) 736-8497. 5. Directions to site: From exit 25 on I-77 travel west on NC-73 West/Sam Fun Road and travel approximately 9.6 miles. Turn left onto S. Little Egypt Road. 7533 S. Little Egypt Road is on the left. 6. Discharge point(s), list for all discharge points: Latitude: 35° 26' S3" Longitude: 81° 00' 39" 7. Site size and expansion area consistent with application? Yes. 8. Topography (relationship to flood plain included): Moderately sloping; the W WTP is not located within the 100 year flood plain., 9. Receiving stream or affected surface waters: Foumey Creek a. Classification: C b. River Basin and subbasin no.: Catawba 030833 C. Describe receiving stream features and pertinent downstream uses: The facility will discharge into Killian Creek. At the time of the site visit the receiving stream was approximately 25- 35 feet wide and 5 feet deep. PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS a. Volume of wastewater to be permitted: 0.975 MGD (ultimate design capacity) b. Current permitted capacity of the wastewater treatment facility: 0.975 MGD C. Actual treatment capacity of the current facility (current design capacity): 0.975MGD d. Date(s) and construction activities allowed by previous Authorizations to Construct issued in the previous two years: Additional aeration is provided in the oxidation ditch. Approval was given by the MRO for this installation. Please advise as to whether an A to C is needed for this change to operations. e. Please provide a description of existing or substantially constructed wastewater treatment facilities: f. Please provide a description of proposed wastewater treatment facilities: The facility consist of an influent pump station with dual pumps, a Parshall flume with ultrasonic flow measuring and recording, a mechanical bar screen with a manual bypass screen, an aerated grit removal basin, and oxidation ditch with 3 channels, consisting of 6 rotor orbal disc aerators, aeromix blowers were added to channels 1 and 2 in September of 2008, dual final clarifiers; dual chlorine contact chambers, an additional chlorine contact chamber added in May, 2007, and S02 dechlorination, a rectangular effluent flow weir, cascade post aeration, influent and effluent samplers, a DAF sludge thickener, a return sludge pumping station with dual pumps, aerobic digesters with dual blowers and a gravity sludge thickener. The aerobic digesters consist of 4 metal tanks. The thickened sludge pump station pumps to a sludge holding tank. The sludge holding tank has a sludge recirculation/truck loading pump station with dual pumps. g. Possible toxic impacts to surface waters: N/A h. Pretreatment Program (POTWs only): Not required. 2. Residuals handling and utilization/disposal scheme: Residuals are land applied under WQ0016922 under contract with South Soils Builders Inc. 3. Treatment plant classification: No change from previous rating. PART III - OTHER PERTINENT INFORMATION Is this facility being constructed with Construction Grant Funds or are any public monies involved? Yes 2. Special monitoring or limitations (including toxicity) requests: None. Important SOC, JOC or Compliance Schedule dates (Please indicate): N/A 4. Alternative Analysis Evaluation: The facility will have some mechanisms to share capacity with the existing Lincoln County Fourney Creek WWTP when needed. PART IV - EVALUATION AND RECONENIENDATIONS The permittee, has requested reissuance of the subject permit. The facility used an additional dewatering system at the beginning of 2008 to remove solids from the headworks of the plant. This was used for approximately 1 month and was effective at addressing compliance issues. This equipment is no longer on site. Please note the following excerpt from an e-mail submitted on Thursday November 18, 2008, by the site inspector following her last plant inspection. Please provide clarification for temperature sampling at permit renewal. As we discussed, it would be helpful if temperature sampling for instream and effluent were listed separately, as they have different measurement frequency requirements. Currently, instream sampling for temperature has 'daily' listed for the measurement frequency, although 3/week in summer and 1/week the rest of the year is what was intended. Daily temperature sampling was intended for effluent only. The facility is currently sampling instream temperature as follows: 3/week June 1-Sept 30 1/week Nov.l-Map 31. Also, note comments regarding the additional air provided to the oxidation ditches and please advise the permittee as to whether an A to C will be needed for this change. MRO recommends that the permit"e r ewed. i ti, Signature of Report Preparer Date (t��3 16 Water Quality Regional Supervisor Date rJ Copy COUNTY OF LINCOLN, NORTH CAROLINA �pR�r 115 WEST MAIN STREET. 2NO FLOOR CITIZENS CENTER. LINCOLNTON. NORTH CAROLINA 28092 DEPARTMENT OF PUBLIC WORKS PHONE (704)736-8497 FAX (704)736-8499 REC'EIVED" August 31, 2009 Mrs. Dina Sprinkle SEP — 2 2009 NC DENR/DWQ/Point Source Branch 1617 Mail Service Center Raleigh, NC 27699-1617 DENR - WATER QUALITY RE. Middle Forney Creek WWTP, Permit NC 0074012 Renewal POINT SOURCE BRANCH Dear Mrs. Sprinkle, The purpose of this letter is to request renewal of the Middle Forney Creek WWTP NPDES Permit, NC 0074012, for five more years. We have filled out the NPPDES 2A Application to the extent required. As far as a sludge management plan referred to in your letter, this plant disposes of its sludge by means of land application. Our permit number is WQ 0016922. The amounts and locations are included in the permit application. If you have any more questions, please feel free to contact me. Sincerely, H. Burns Whittaker, PE Public Works Director FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: ----] Middle Forney Creek WWTP. NC C)--' -4012 Renewal Catawba FORM 2A NPDES FbRM 2A)APPLICATION.OVERVIEW NPDES APPLICATION OVERVIEW Form 2A has been developed in a modular format and consists of a "Basic Application Information" packet and a "Supplemental Application Information" packet. The Basic Application Information packet is divided into two parts. All applicants must complete Parts A and C. Applicants with a design flow greater than or equal to 0.1 mgd must also complete Part B. Some applicants must also complete the Supplemental Application Information packet. The following items explain which parts of Form 2A you must complete. BASIC APPLICATION INFORMATION: A. Basic Application Information for all Applicants. All applicants must complete questions A.1 through A.8. A treatment works that discharges effluent to surface waters of the United States must also answer questi B. Additional Application Information for Applicants Design Flow RIECIEIVEIC with a 2 0.1 mgd. greater than or equal to 0.1 million gallons per day must complete questions B.1 through 8.6. C. Certification. All applicants must complete Part C (Certification). SEP - 2 2009 SUPPLEMENTAL APPLICATION INFORMATION: DENR - WATER QUALITY D. Expanded Effluent Testing Data. A treatment works that discharges effluent to surface waters of the United States and meets one or more of the following criteria must complete Part D (Expanded Effluent Testing DPOINT SOURCE B RAN C I 1. Has a design flow rate greater than or equal to 1 mgd, 2. Is required to have a pretreatment program (or has one in place), or 3. Is otherwise required by the permitting authority to provide the information. E. Toxicity Testing Data. A treatment works that meets one or more of the following criteria must complete Part E (Toxicity Testing Data): 1. Has a design flow rate greater than or equal to 1 mgd, 2. Is required to have a pretreatment program (or has one in place), or 3. Is otherwise required by the permitting authority to submit results of toxicity testing- F. Industrial User Discharges and RCRA/CERCLA Wastes. A treatment works that accepts process wastewater from any significant industrial users (SIUs) or receives RCRA or CERCLA wastes must complete Part F (Industrial User Discharges and RCRAlCERCLA Wastes). SIUs are defined as: 1. All industrial users subject to Categorical Pretreatment Standards under 40 Code of Federal Regulations (CFR) 403.6 and 40 CFR Chapter I, Subchapter N (see instructions); and 2. Any other industrial user that: a. Discharges an average of 25,000 gallons per day or more of process wastewater to the treatment works (with certain exclusions); or b. Contributes a process wastestream that makes up 5 percent or more of the average dry weather hydraulic or organic capacity of the treatment plant; or C. Is designated as an SIU by the control authority. G. Combined Sewer Systems. A treatment works that has a combined sewer system must complete Part G (Combined Sewer Systems). ALL APPLICANTS MUST COMPLETE PART C (CERTIFICATION) EPA Forrn 3510.2A (Rev. 1-99). Replaces EPA forms 7550-6 8 7550.22. PY Page 1 0( 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Killian Creek '.TP. NC 0088722 Renewal Catawba BASIC APPLICATION INFORMATION PART A. BASIC APPLICATION INFORMATION FOR ALL APPLICANTS: All treatment works must complete questions A.1 through A.8 of this Basic Application Information Packet. A.1. Facility Information. Facility Name Middle Forney Creek .... =P Mailing Address 7533 South Little Egypt -,ad Stanley. NC 28164 Contact Person Lawson D.. Starnes Title ORC -WWTP Telephone Number j704t822-9667 Facility Address 7533 South Litfle Egypt � .rad (not P.O. Box) Stanley NC 28164 A.2. Applicant Information. If the applicant is different from the above, provide the following: Applicant Name Lincoln County Mailing Address 115 West Mam Street Lmcolnton. NO 2809L Contact Person H. Burns Whinake, Title Public Works Dneclor Telephone Number 1704) 736-8497 Is the applicant the owner or operator (or both) of the treatment works? ® owner ❑ operator Indicate whether correspondence regarding this permit should be directed to the facility or the applicant. ❑ facility ® applicant A.3. Existing Environmental Permits. Provide the permit number of any existing environmental permits that have been issued to the treatment works (include state -issued permits). NPDES NC 0074012 PSD UIC Other RCRA Other A.4. Collection System Information. Provide information on municipalities and areas served by the facility. Provide the name and population of each entity and, if known, provide information on the type of collection system (combined vs. separate) and its ownership (municipal, private, etc.). Name Population Served Type of Collection System Ownership Lincoln Count. 9.078 Seperate Lincoln County Total population served 9.078 EPA Form 3510-2A (Rev. 1-99). Reptaces EPA forms 7550-6 8 7550-22. Page 2 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Middle F -ey Creek WWTP, NC 00"-1012 Renewal Catawba A.S. Indian Country. a. Is the treatment works located in Indian Country? _ , Yes © No b. Does the treatment works discharge to a receiving water that is either in Indian Country or that is upstream from (and eventually flows through) Indian Country? Yes El No A.S. Flow. Indicate the design flow rate of the treatment plant (i.e., the wastewater flow rate that the plant was built to handle). Also provide the average daily flow rate and maximum daily flow rate for each of the last three years. Each year's data must be based on a 12-month time period with the 120 month of "this year occurring no more than three months prior to this application submittal. a. Design flow rate 0.975 mgd Two Years Aoo Last Year This Year b. Annual average daily flow rate 0.608 0.653 0.708 C. Maximum daily flow rate 1_393 1.765 1.329 A.7. Collection System. Indicate the type(s) of collection system(s) used by the treatment plant. Check all that apply. Also estimate the percent contribution (by miles) of each. �. Separate sanitary sewer 100 % Combined storm and sanitary sewer % A.B. Discharges and Other Disposal Methods. a. Does the treatment works discharge effluent to waters of the U.S.? ® Yes ❑ No If yes, list how many of each of the following types of discharge points the treatment works uses: I. Discharges of treated effluent Middle Forney Creek ii. Discharges of untreated or partially treated effluent iii. Combined sewer overflow points iv. Constructed emergency overflows (prior to the headworks) V. Other N/A b. Does the treatment works discharge effluent to basins, ponds, or other surface impoundments that do not have outlets for discharge to waters of the U.S.? ❑ Yes Cx1 No If yes, provide the following for each surface impoundment: Location: Annual average daily volume discharge to surface impoundments) Is discharge ❑ continuous or _. intermittent? C. Does the treatment works land -apply treated wastewater? If yes, provide the following for each land application site: Location: Number of acres: ® Yes Annual average daily volume applied to site: 0.0044 mgd Is land application ❑ continuous or intermittent? d. Does the treatment works discharge or transport treated or untreated wastewater to another treatment works? ❑ Yes mgd ❑ No E) No EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22 Page 3 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Middle F- •-,ey Creek WWTP, NC 00--1012 Renewal Catawba If yes, describe the mean(s) by which the wastewater from the treatment works is discharged or transported to the other treatment works (e.g., tank truck, pipe). If transport is by a parry other than the applicant, provide Transporter Name _ Mailing Address Contact Person Title Telephone Number f_)___ For each treatment works that receives this discharge, provide the following Name Mailing Address Contact Person Title Telephone Number (Z_ If known. provide the NPDES permit number of the treatment works that receives this discharge Provide the average daily flow rate from the treatment works into the receiving facility. mgd e. Does the treatment works discharge or dispose of its wastewater in a manner not included in A.8. through A.8.d above (e.g., underground percolation, well injection): ❑ Yes ® No If yes, provide the following for each disposal method: Description of method (including location and size of site(s) if applicable): Annual daily volume disposed by this method: — Is disposal through this method G continuous or ❑ intermittent? EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-8 8 7550-22. Page 4 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Middle -ney Creek WWTP. NC 0;'-4012 Renewal Catawba WASTEWATER DISCHARGES: If you answered "Yes" to question A.9.a. complete Questions A.9 through A.12 once for each outfall (including bypass points) through which effluent is discharged. Do not include information on combined sewer overflows in this section. If you answered "No" to question A.B.a, go to Part B, "Additional Application Information for Applicants with a Design Flow Greater than or Equal to 0.1 mgd." A.9. Description of Outfall. a. Outfall number b. Location (City or town, f applicable) (County) (Latitude) C. Distance from shore (if applicable) d. Depth below surface (if applicable) e. Average daily flow rate f. Does this outfall have either an intermittent or a periodic discharge? If yes, provide the following information: Number f times per year discharge occurs: Average duration of each discharge: Average flow per discharge: Months in which discharge occurs: g. Is outfall equipped with a diffuser? (Zip Code) (State) (Longitude) N/A. (Surfacel ft, NfA i Surface) g, 0.708 mgd ❑ Yes ® No (go to A.9.g.) ❑ Yes E No A.10. Description of Receiving Waters. a. Name of receiving water Midrne . iev Creek b. Name of watershed (if known) NIA United States Soil Conservation Service 14-digit watershed code (if known): c. Name of State Management/River Basin (if known): Cataqu, United States Geological Survey 8-digit hydrologic cataloging unit code (if known): d. Critical low flow of receiving stream Qf applicable) acute _Unknown cfs chronic I e. Total hardness of receiving stream at critical low Flow (if applicable): Un Known mgd 03050101150020 Unknown cfs Ii of C00O3 EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 8 7550-22. Page 5 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Middle F^-'-ay Creek WWTP, NC 00-4012 Renewal Catawba A.11. Description of Treatment a. What level of treatment are provided? Check all that apply. _. Primary E! Secondary Advanced ❑ Other. Describe: b. Indicate the following removal rates (as applicable): Design BOD5 removal or Design CBOD5 removal 85 % Design SS removal 85 % Design P removal % Design N removal % Other % c. What type of disinfection is used for the effluent from this outfall? If disinfection varies by season, please describe: Chloe If disinfection is by chlorination is dechlorination used for this outfall? ® Yes ❑ No Does the treatment plant have post aeration? 0 Yes ❑ No A.12. Effluent Testing Information. All Applicants that discharge to waters of the US must provide effluent testing data for the following parameters. Provide the indicated effluent testing required by the permitting authority for each outfall through which effluent is discharged. Do not include information on combined sewer overflows in this section. All information reported must be based on data collected through analysis conducted using 40 CFR Part 136 methods. In addition, this data must comply with QA/QC requirements of 40 CFR Part 136 and other appropriate QA/QC requirements for standard methods for analytes not addressed by 40 CFR Part 136. At a minimum, effluent testing data must be based on at least three samples and must be no more than four and one-half years apart Outfall number: 001 MAXIMUM DAILY VALUE AVERAGE DAILY VALUE PARAMETER Value Units Value Units Number of Samples pH (Minimum) 6.21 s.u. pH (Maximum) 6.91 S.U. Flow Rate 0.91 mgd 0.629 mgd 31 Temperature (Winter) 15.2 -C 11.7 °C 31 Temperature (Summer) 24.7 'C 23.7 °C 31 ' For pH please report a minimum and a maximum daily value MAXIMUM DAILY AVERAGE DAILY DISCHARGE POLLUTANT DISCHARGE ANALYTICAL MLIMDL Conc. Units Conc. Units Number of METHOD Samples s CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS BIOCHEMICAL OXYGEN SODS 4.2 h°G/L 27 MG/L 15 52106 DEMAND (Report one) CBOD5 FECAL COLIFORM 11 #/10UmL 3 #/100mL 15 9222 D TOTAL SUSPENDED SOLIDS(TSS) 6.4 &1GlL U 3 MG/L 15 254 B END OF PART A. REFER TO THE APPLICATION OVERVIEW (PAGER) TO DETERMINE WHICH OTHER PARTS OF FORM 2A YOU MUST COMPLETE EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 6 7550-22. Page 6 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Middle F - -iey Creek W\AfTP. NC 00-4:012 Renewal Catawba BASIC APPLICATION INFORMATION PART B. ADDITIONAL APPLICATION INFORMATION FOR APPLICANTS WITH A DESIGN FLOW GREATER THAN OR EQUAL TO 0.1 MGD (100,000 gallons per day). All applicants with a design flow rate Z 0.1 ingot must answer questions B.1 through B.6. All others go to Part C (Certification). B.1. Inflow and Infiltration. Estimate the average number of gallons per day that flow into the treatment works from inflow and/or infiltration. Minimal gpd Briefly explain any steps underway or planned to minimize inflow and infiltration. Durina e,' a rain event some additional f, . Is Iec�_ , .� It is usually traced to construction sites and private property, B.2. Topographic Map. Attach to this application a topographic map of the area extending at least one mile beyond facility property boundaries. This map must show the outline of the facility and the following information. (You may submit more than one map if one map does not show the entire area.) a. The area surrounding the treatment plant. including all unit processes. b. The major pipes or other structures through which wastewater enters the treatment works and the pipes or other structures through which treated wastewater is discharged from the treatment plant. Include outfalls from bypass piping, if applicable. c. Each well where wastewater from the treatment plant is injected underground. d. Wells, springs, other surface water bodies, and drinking water wells that are: 1) within Y. mile of the property boundaries of the treatment works, and 2) listed in public record or otherMse known to the applicant. e. Any areas where the sewage sludge produced by the treatment works is stored, treated, or disposed. f. If the treatment works receives waste that is classified as hazardous under the Resource Conservation and Recovery Act (RCRA) by truck, rail, or special pipe, show on the map where the hazardous waste enters the treatment works and where it is treated, stored, and/or disposed. B.3. Process Flow Diagram or Schematic. Provide a diagram showing the processes of the treatment plant, including all bypass piping and all backup power sources or redunancy in the system. Also provide a water balance showing all treatment units, including disinfection (e.g., chlorination and dechlorination). The water balance must show daily average flow rates at influent and discharge points and approximate daily flow rates between treatment units. Include a brief narrative description of the diagram. B.4. Operation/Maintenance Performed by Contractor(s). Are any operational or maintenance aspects (related to wastewater treatment and effluent quality) of the treatment works the responsibility of a contractor? ❑ Yes ( No If yes, list the name, address, telephone number, and status of each contractor and describe the contractors responsibilities (attach additional pages if necessary). Name: Mailing Address: Telephone Number: Responsibilities of Contractor: B.5. Scheduled improvements and Schedules of Implementation. Provide information on any uncompleted implementation schedule or uncompleted plans for improvements that will affect the wastewater treatment, effluent quality, or design capacity of the treatment works. If the treatment works has several different implementation schedules or is planning several improvements, submit separate responses to question B.5 for each. (If none, go to question B.6.) a. List the outfall number (assigned in question A.9) for each outfall that is covered by this implementation schedule. GG1 b. Indicate whether the planned improvements or implementation schedule are required by local, State, or Federal agencies. Yes Lamll No EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 7 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Middle F - ^ey Creek WV1rFP. NC OC-4012 Renewal Catawba C. If the answer to B.5.b is "Yes," briefly describe, including new maximum daily inflow rate (f applicable). N/A d. Provide dates imposed by any compliance schedule or any actual dates of completion for the implementation steps listed below, as applicable. For improvements planned independently of local. State, or Federal agencies, indicate planned or actual completion dates, as applicable. Indicate dates as accurately as possible. Schedule Actual Completion Implementation Stage MM/DD/WYY MM/DD/YYYY - Begin Construction - End Construction - Begin Discharge - Attain Operational Level e. Have appropriate permits/clearances conceming other Federal/State requirements been obtained? ❑ Yes ❑ No Describe briefly: B.6. EFFLUENT TESTING DATA (GREATER THAN 0.1 MGD ONLY). Applicants that discharge to waters of the US must provide effluent testing data for the following parameters. Provide the indicated effluent testing required by the permitting authority for each outfall through which effluent is discharged. Do not include information on combine sewer overflows in this section. All information reported must be based on data collected through analysis conducted using 40 CFR Part 136 methods. In addition, this data must comply with QA/QC requirements of 40 CFR Part 136 and other appropriate QA/QC requirements for standard methods for analytes not addressed by 40 CFR Part 136. At a minimum effluent testing data must be based on at least three pollutant scans and must be no more than four and on -half years old. Outfall Number: 001 MAXIMUM DAILY DISCHARGE AVERAGE DAILY DISCHARGE POLLUTANT ANALYTICAL MIJMDL Conc. Units Conc. Units Number of METHOD Samples CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS AMMONIA (as N) 0.25 MGil-7 0 < MG/L 15 4500-NH3.13 CHLORINE (TOTAL RESIDUAL, TRC) �20 ugl 0 ugl 15 4500-CIG DPD DISSOLVED OXYGEN 9.8 MGIL P. - MG/L 15 DOYSI 550 TOTAL KJELDAHL NITROGEN (TKN) 19.6 MGIL 1E b MG/L 3 EPA 351.2 NITRATE PLUS NITRITE NITROGEN 17.7 MGIL 16, MG/L 3 EPS 353.2 OIL and GREASE PHOSPHORUS (Total) 6.3 MGIL a � MG/L 3 EPA 365.2 TOTAL DISSOLVED SOLIDS (TDS) OTHER END OF PART-B. REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS OF FORM 2A YOU MUST COMPLETE EPA Form 3510.2A (Rev. 1-99). Replaces EPA forms 7550-6 8 7550-22. Page 8 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Middle F-�-ney Creek WWTP. NC OC-4012 Renewal Catawba BASIC APPLICATION INFORMATION PART C. CERTIFICATION All applicants must complete the Certification Section. Refer to instructions to determine who is an officer for the purposes of this certification. All applicants must complete all applicable sections of Form 2A, as explained in the Application Overview. Indicate below which parts of Form 2A you have completed and are submitting. By signing this certification statement, applicants confirm that they have reviewed Form 2A and have completed all sections that apply to the facility for which this application is submitted. Indicate which parts of Form 2A you have completed and are submitting: D Basic Application Information packet Supplemental Application Information packet: ❑ Part D (Expanded Effluent Testing Data) C Part E (Toxicity Testing: Biomonitoring Data) Part F (Industrial User Discharges and RCRA/CERCLA Wastes) ❑ Part G (Combined Sewer Systems) ALL APPLICANTS MUST COMPLETE THE FOLLOWING CERTIFICATION. I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel property gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system or those persons directly responsible for gathering the information, the Information is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. Name and official title H. Burns Whittaker Signature U- Telephone number J7041 736 849 Date signed September i =005 Upon request of the permitting authority, you must submit any other information necessary to assure wastewater treatment practices at the treatment works or identify appropriate pernitting requirements. SEND COMPLETED FORMS TO: NCDENR/ DWQ Attn: NPDES Unit 1617 Mail Service Center Raleigh, North Carolina 27699-1617 EPA Forth 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 8 7550-22. Page 9 of 22 Latitude. 35026'53" Longitude: 81000'39" Stream Class: C Subbasin: 30833 Receiving Stream: Forney Creek NCO074012 Lincoln County Utilities Middle Forney Creek W W'I'P Facility North SPAL a moo i0" Forney Creek WWTP, Lincoln County North Carolina Permit No. NC0074012 B3 — Process Flow Description Middle Forney creek WWTP is a 0.975 MGD wastewater facility consisting of an influent pump station with dual pumps, a Parshall flume with ultrasonic flow measuring and recording, a mechanical bar screen with a manual bypass screen, an aerated grit removal basin measuring 10' X 10.5' X 10' with a capacity of 7,854 gallons. An Oxidation ditch with a total dimension of 106.5' X 124.5' with 3 channels. Channel 1 measures 52' X 15' X 9' with a capacity of 350,000 gallons. Channel 2 measures 36' X 15' X 9' with a capacity of 250,000 gallons. Channel 3 measures 20' X 15' X 9' with a capacity of 150,000 gallons. The three channels have a total of six rotor Orbal disc aerators. Aeromix blowers were added to Channel 1 and 2 in September of 2008 to supplement the oxygen transfer capacity of the Orbal discs in the channels. The plant has dual final clarifiers with a diameter of 35' X 13.5' and a capacity of 97,104 gallons each, dual chlorine contact chambers measuring 32.3' X 11.6' X 6' with a capacity of 16,918 gallons, and additional single chlorine contact chamber added in the upgrade in May, 2007 that measures 36.5' X 5.7' X 6.25' with a capacity of 9,752 gallons and SO2 dechlorination. Also in place are a rectangular effluent flow weir, cascade post aeration, influent and effluent samplers, a DAF sludge thickener which is now in operation, a return sludge pumping station with dual pumps. The pre-existing package plant was converted to aerobic digesters with dual blowers and the final clarifier was converted to a gravity sludge thickener. The aerobic digesters consist of 4 metal tanks, holding 10,500 gallons, 9627 gallons, 19,400 gallons, and 121,455 gallons for a total of 160,972 gallons. The thickened sludge pump station pumps to a sludge holding tank that measures 56' diameter X 20', with a capacity of 368,279 gallons. The sludge holding tank has a sludge recirculating/truck loading pump station with dual pumps that were upgraded in May, 2007. The plant also has a caustic feed system with a recirculation pump and dual feed pumps. Forney Creek WWTP, Lincoln County North Carolina Permit No. NCO074012 B3 — Process Flow Diagram Sampling Points: I-Influent(Prior to Screeningand Grit Removal) 2-ERluent(Composite Samplingafter chlorinating anddechlorinating) 3-Effluent (Grab Sampling) 4-Aeration Basin 5-Sludge Sampling (land Application) I o Stream ATTACHMENT B-Aonroved Land Akkkgion Sites m Permtr No. WQ0016921 Lincoln County Lincoln County Rerdnali Land Applicalian Program - ro m . Site/Field ID Landowner LesseelOpera[or County Latitude CD CDpP Longitude. Net Acrenge A ~' Restriction in n w S-0I Setzer, Trilb T. Tea at, Derek Lee Catawba Condition 1V, i.. S-02 Setzer Trilb T, Te ue,Derek Lee - Catawba 35°37'60" 81°04'2T' 19.80 GW-A T-Ol T ue, La Ora Tea ue, Derek Lee Catawba 35°37'S0" 81°04'42" Z5.00 .GW-A w w T-02 Tea ue, L Gta arrY Tea ue, Derek Lee Catawba 35°37'19" 81°DY37" 26.00 G W_A °' rn Toral For Coun 35°37'34" 81°OS'47" 10.00 DP-01 Preston, Bernice Preston, Dwi ht Catawba 80.80 GW-A - o0 RP-01 Perkins, Sel Perkins Richard Lincoln Lincoln 35°26'20" 81`03'22" 13.70 GW-A m RP-02 Perkins, Selw Perkins, Richard Lincoln . 35°29']7" .. 81003'20" 130D OW -A TJ-01 ]ones,�Ton �� _ 35°29'tI" 81°03'44" 12.70 TJ-03 Jones, Ton - Lincoln 35°24'35° 81002'29" 22.40 GW-A TJ-04 Jones, Ton Lincoln 35°24'25" 81 °02'45" GW_A TI-05 Jones, Lincoln 35°24'56" 81°O]'S4" 13.40 I3.40 GWA TJ-06 Jones, Ton Lincoln 35°26'34" 91000'29". 7.60 CW-A Total For Coun .81 Lincoln 35°24'49" ° 00'S1" 8.20. GW-A Total Lincoln Gµ,-A. 140.10 '. 221.00 Co C . _ A Z O H r- m U) D - - i m Pcnr,il No. WQ0016922 m Page I of I - N Certification Date: Decombcr 16, 2005 m 01/17/2007 01:53 3369578940 SOUTHERNSOILBUILERS PAGE 03104 w 0 11 IL R J H J O z w F- b; r m a m CD n m m im m M M N m `hO." 5,805.45 1,605,500 154.63 4,398.05 FACT SHEET FOR EXPEDITED PERMIT RENEWALS Basic Information to determine potential for expedited permit renewal Reviewer/Date M Oil- July 9, 2009 Permit Number NC0074012 Facility Name Forney Creek W WTP Basin Name/Sub-basin number 30833 Receiving Stream 41 C1 Stream Classification in Permit C Does permit need NH3 limits? YES / N Does permit need TRC limits? YES / Does permit have toxicity testing? YES / Does permit have Special Conditions? YES / N goo aW au f od Does permit have instream monitoring? Y / Is the stream impaired (on 303(d) list)? YES / NO Any obvious compliance concerns? Any permit mods since last permit? YES / NO Existing expiration date 2/28/2010 New expiration date 2 ?g ,? a i New permit effective date Miscellaneous Comments Review -Complex in 2005 ect%{ calItit11Hoc WUO rev..�eJjrw� �� LL..un>/I• rec etf �..r �tr re1C. �Ifi°IY 70 wsL C4taF }a Iv-11 .1 14v FL11, fi5 el�e�pp. — I e ¢X 4\/l u� Te 0.91f L �,�+ I<Fc 30 p�.�c�• (1ffA 11 Cn•. qe •�ctaJ p.✓. I�� „�If jd> Curt' ulK YES This is a SIMPLE EXPEDITED permit renewal (administrative renewal with no changes, or only minor changes such as TRC, NH3. name/ownership changes). YES This is a MORE COMPLEX EXPEDITED permit renewal (includes Special Conditions (such as EAA, Wastewater Management Plan), 303(d) listed, toxicity testing, instream monitoring, compliance concerns, phased limits). Basin Coordinator to make case -by -case decision. YES This permit CANNOT BE EXPEDITED for one of the following reasons: • -Major Facility (municipal/industrial) • Minor Municipals with pretreatment program • Minor Industrials subject to Fed Effluent Guidelines (lb/day limits for BOD, TSS, etc) • Limits based on reasonable potential analysis (metals, GW remediation organics) Permitted fow> 0.5 MGD (requires full Fact Sheet) • Permits determined by Basin Coordinator to be outside expedited process TB Version 8/18/2006 (NPDES Server/Current Versions/Expedited Fact Sheet) NC0074012/Fomey Creek in Lincoln county Subject: NC0074012/Fomey Creek in Lincoln county From: Donna Hood <donna hood@ncmail.nety Date: Tue, 18 Nov 2008 16:21:14 -0500 To: Jackie Nowell <Iackie.Nowell@ncmail.nev Jackie, Per our conversation today.... NOTE to the FILE: Please provide tC larification-for temperature -sampling at permit -renewal:, As we discussed, it would be helpful•iftemperature:sampling:for:instream•and`efiluentwere.listed separately, as,theychave.different` measurementfrequency requirements: Currently, instream sampling for temperature has 'daily' listed for the measurement frequency, although 3/week in summer and 1 /week the rest of the year is what was intended. Daily temperature sampling was intended for effluent only. The facility is currently sampling instream temperature as follows: 3/week June 1-Sept 30 1/week Nov. 1-May 31. Thank you for your clarification during our conversation today. If I have understood any guidance incorrectly, please let me know. Donna Donna Hood - Donna.Hood@ncmail.net North Carolina Dept. of Environment & Natural Resources 610 E. Center Ave. Mooresville, NC 28115 Ph: 704.663.1699 Fax: 704.663.6040 1 of I I I / 18/2008 4:41 PM