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HomeMy WebLinkAboutNC0021474_Renewal Application_20181218 awn ROY COOPER NORTH CAROLINA GovernorEnvironmental Quality MICHAEL S.REGAN Secretary LINDA CULPEPPER Interim Director December 18, 2018 Dennis J. Hodge City of Mebane 106 E Washington St Mebane, NC 27302 Subject: Permit Renewal Application No. NC0021474 Mebane WWTP Alamance County Dear Applicant: The Water Quality Permitting Section acknowledges the December 12, 2018 receipt of your permit renewal application and supporting documentation. Your application will be assigned to a permit writer within the Section's NPDES WW permitting branch. Per G.S. 150E-3 your current permit does not expire until permit decision on the application is made. Continuation of the current permit is contingent on timely and sufficient application for renewal of the current permit.The permit writer will contact you if additional information is required to complete your permit renewal. Please respond in a timely manner to requests for additional information necessary to allow a complete review of the application and renewal of the permit. Information regarding the status of your renewal application can be found online using the Department of Environmental Quality's Environmental Application Tracker at: https://deq.nc.gov/permits-regulations/permit-guidance/environmental-application-tracker If you have any additional questions about the permit, please contact the primary reviewer of the application using the links available within the Application Tracker. Sincerely, iron Wren Thedford Administrative Assistant Water Quality Permitting Section ec: WQPS Laserfiche File w/application DEQ1 North Carolina Department of Environmental Quality I Division of Water Resources 1617 Mail Service Center I Raleigh,North Carolina 27699-1617 919-807-6300 cAle6apte November 30,2018 NCDEQ/DWR Attn:NPDES Unit 1617 RECEIVED/DENR/DWR 1617 Mail Service Center Raleigh,North Carolina 27699-1617 DEC 12 2018 Subject: City of Mebane WWTP Permit Renewal Water Resources NPDES Permit No.NC0021474 Permitting Section NPDES Permit Group: The City of Mebane Wastewater Treatment Plant's NPDES Permit No.NC0021474 issued effective July 1,2014 and modified effective March 31,2017 and April 1,2017,expires May 31,2019. Please find enclosed Mebane's permit renewal application package along with two copies. Mercury Minimization Plan(MMP)Implementation: In accordance with PART I.A.(12.)of the existing permit,a MMP was developed effective December 29, 2014. Per the MMP,implementation began December 29,2016. WWTP Influent and Effluent are monitored for mercury a minimum of quarterly and the collection system is monitored at least semi- annually. These data are reviewed as received and compared to historical data to look for trends and/or potential sources of mercury discharges. All Significant Industrial User(SIU)permits issued by the City's Industrial Pretreatment Program require monitoring for mercury. If mercury is detected at or above 0.0002mg/L,the SIU is required to conduct a source investigation and eliminate the mercury source as soon as possible. Additionally, in response to EPA's promulgation of the Dental Amalgam Rule(40 CFR Part 441),all existing dental facilities within the City's service area were provided with education and outreach materials. As well,in accordance with 40 CFR 441,each existing facility was provided with a One-Time Compliance Report due to the City on or before October 12,2020. Any new/proposed dental facilities will be required to immediately comply with 40 CFR 441. In light of promulgation of the Dental Amalgam Rule at 40 CFR Part 441,we respectfully request that the Mercury Minimization Plan requirement be removed from the forthcoming NPDES permit renewal. Additionally,the City of Mebane requests the involvement of our staff during the permitting process prior to issuance of a draft permit. If you have any questions or need any additional information please contact the undersigned. Sincerely, Dennis J.Hodge Water Resources Director City of Mebane Enclosures CITY OF MEBANE 106 E.Washineton Sl I Mebane.NC 27302 0 919 563 6141 919 563 6144 0 www.crtvormehane.com CITY MEBANE .com FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Mebane WRRF, NC0021474 Renewal Upper Cape Fear FORM 2A NPDES FORM 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 questions A.9 through A.12. B. Additional Application Information for Applicants with a Design Flow 2 0.1 mgd. All treatment works that have design flows greater than or equal to 0.1 million gallons per day must complete questions B.1 through B.6. C. Certification. All applicants must complete Part C(Certification). SUPPLEMENTAL APPLICATION INFORMATION: 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 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 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(Sills)or receives RCRA or CERCLA wastes must complete Part F(Industrial User Discharges and RCRA/CERCLA Wastes). SlUs 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 Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 1 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Mebane WRRF, NC0021474 Renewal Upper Cape Fear 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 City of Mebane Water Resource Recovery Facility Mailing Address 106 E.Washington Street Mebane.NC 27302 Contact Person Dennis J.Hodoe Title Water Resources Director Telephone Number (919)304-9215 Facility Address 635 Corrigidor Road (not P.O.Box) Mebane,NC 27302 A.2. Applicant Information. If the applicant is different from the above,provide the following: Applicant Name Mailing Address Contact Person Title Telephone Number ( ) Is the applicant the owner or operator(or both)of the treatment works? ❑ owner 0 operator Indicate whether correspondence regarding this permit should be directed to the facility or the applicant. ❑ facility 0 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 NC0021474,NCC000003 PSD UIC Other WQCS00081 RCRA Other NCG110025 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 Mebane 14,000 Sanitary City of Mebane Total population served 14,000 EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 2 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Mebane WRRF, NC0021474 Renewal Upper Cape Fear A.5. Indian Country. a. Is the treatment works located in Indian Country? ❑ Yes kI+ 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 ® No A.6. 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 12th month of"this year"occurring no more than three months prior to this application submittal. a. Design flow rate 2.50 mgd Two Years Aqo Last Year This Year b. Annual average daily flow rate 1.397 1.367 1.350 c. Maximum daily flow rate 5.149 6.259 4.783 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 ok 0 Combined storm and sanitary sewer A.8. Discharges and Other Disposal Methods. a. Does the treatment works discharge effluent to waters of the U.S.? .2 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 1 ii. Discharges of untreated or partially treated effluent 0 iii. Combined sewer overflow points 0 iv. Constructed emergency overflows(prior to the headworks) 0 v. Other N/A 0 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.? 0 Yes ® No If yes,provide the following for each surface impoundment: Location: Annual average daily volume discharge to surface impoundment(s) mgd Is discharge 0 continuous or 0 intermittent? c. Does the treatment works land-apply treated wastewater? 0 Yes ❑ No If yes,provide the following for each land application site: Location: Number of acres: Annual average daily volume applied to site: mgd Is land application 0 continuous or 0 intermittent? d. Does the treatment works discharge or transport treated or untreated wastewater to another treatment works? 0 Yes r.. 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: Mebane WRRF, NC0021474 Renewal Upper Cape Fear 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 party other than the applicant,provide: Transporter Name Mailing Address Contact Person Title Telephone Number ( ) For each treatment works that receives this discharge,provide the following: Name Mailing Address Contact Person Title Telephone Number j ) 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): 0 Yes 0 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 0 continuous or ❑ intermittent? EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 4 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Mebane WRRF, NC0021474 Renewal Upper Cape Fear WASTEWATER DISCHARGES: If you answered"Yes"to question A.8.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.8.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 001 b. Location Mebane 27302 (City or town,if applicable) (Zip Code) Alamance NC (County) (State) 36.08743 -79.28844 (Latitude) (Longitude) c. Distance from shore(if applicable) ft. d. Depth below surface(if applicable) ft. e. Average daily flow rate mgd f. Does this outfall have either an intermittent or a periodic discharge? 0 Yes ® No (go to A.9.g.) If yes,provide the following information: Number f times per year discharge occurs: Average duration of each discharge: Average flow per discharge: mgd Months in which discharge occurs: g. Is outfall equipped with a diffuser? 0 Yes ® No A.10. Description of Receiving Waters. a. Name of receiving water Moadams Creek b. Name of watershed(if known) Haw River United States Soil Conservation Service 14-digit watershed code(if known): c. Name of State Management/River Basin(if known):Upper Cape Fear River United States Geological Survey 8-digit hydrologic cataloging unit code(if known): d. Critical low flow of receiving stream(if applicable) acute 0.00 cfs chronic 0.00 cfs e. Total hardness of receiving stream at critical low flow(if applicable): mg/I of CaCO3 EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 5 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Mebane WRRF, NC0021474 Renewal Upper Cape Fear A.11. Description of Treatment a. What level of treatment are provided? Check all that apply. t: Primary El Secondary ® Advanced 0 Other. Describe: b. Indicate the following removal rates(as applicable): Design BOD5 removal or Design CBOD5 removal 98.00 % Design SS removal 88.00 Design P removal 72.00 ok Design N removal 95.00 Other c. What type of disinfection is used for the effluent from this outfall? If disinfection varies by season,please describe: Chlorination If disinfection is by chlorination is dechlorination used for this outfall? ® Yes ❑ No Does the treatment plant have post aeration? El Yes 0 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) 6.38 SU ` " 1i'f pH(Maximum) 7.86 SU Flow Rate 6.259 MGD 1.339 MGD 1279 Temperature(Winter) 21.0 °C 14.1 °C 300 • Temperature(Summer) 27.2 °C 21.8 °C 573 For pH please report a minimum and a maximum daily value MAXIMUM DAILY AVERAGE DAILY DISCHARGE DISCHARGE ANALYTICAL POLLUTANT METHOD ML/MDL Conc. Units Conc. Units Number of Samples CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS BIOCHEMICAL OXYGEN BOD5 28.4 mg/L 2.37 mg/L 680 SM5210B2001 2.0 DEMAND(Report one) CBOD5 FECAL COLIFORM >2420 MPN/ 7 7 MPN/ 668 IDEXXColilert 1 0 100mL 100mL 18(MPN) TOTAL SUSPENDED SOLIDS(TSS) 20 0 [ -. !(_ 1.21 mo'L 374 Sr., 2,1OD20?1 2 0 END OF PART A. 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&7550-22. Page 6 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Mebane WRRF, NC0021474 Renewal Upper Cape Fear 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 2 0.1 mgd 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. 200,000 gpd Briefly explain any steps underway or planned to minimize inflow and infiltration. City personnel routinely camera and inspect lines for leaks and make repairs as needed. 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 IA mile of the property boundaries of the treatment works,and 2)listed in public record or otherwise 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? 0 Yes No If yes,list the name,address,telephone number,and status of each contractor and describe the contractor's responsibilities(attach additional pages if necessary). Name: Mailing Address: Telephone Number: j1 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. 001 b. Indicate whether the planned improvements or implementation schedule are required by local,State,or Federal agencies. Co Yes ❑ 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: Mebane WRRF, NC0021474 Renewal Upper Cape Fear c. If the answer to B.5.b is"Yes,"briefly describe,including new maximum daily inflow rate(if applicable). Tentative—to comply with Jordan Lake Nutrient Rules. Also,anticipated design and construction within the next five years to include new headworks,digester upgrade and solids handling improvements. 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/YYYY MM/DD/YYYY -Begin Construction / / / / -End Construction / / / / -Begin Discharge / / / / -Attain Operational Level / / / / e. Have appropriate permits/clearances concerning other Federal/State requirements been obtained? ❑ Yes r. No Describe briefly: Engineering/Design scheduled to begin in 2018 to obtain AtoC by 12/31/2019. 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 AVERAGE DAILY DISCHARGE DISCHARGE ANALYTICAL POLLUTANT METHOD ML/MDL Conc. Units Conc. Units Number of Samples CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS AMMONIA(as N) 10.0 mglL 1.03 mg/L 392 SM4500NH3F- 0.05 2011(TNT) CHLORINE(TOTAL 48.3 ug/L <15.0 ug/L 873 SM4500CIG2011 15.0 RESIDUAL,TRC) DISSOLVED OXYGEN 10.6 mg/L 8.4 mg/L 873 HACH10360- 0.01 2011 TOTAL KJELDAHL 9.32 mg/L 2.72 mglL 207 EPA351.1 0.10 NITROGEN(TKN) NITRATE PLUS NITRITE 8.18 mg/L 1.11 mg/L 207 EPA353.2 0.10 NITROGEN OIL and GREASE 6.7 mg/L <5.0 mg/L 19 EPA1664B 5.0 PHOSPHORUS(Total) 13.3 mg/L 1.05 mg/L 437 SM4500PE2011 0.10 TOTAL DISSOLVED SOLIDS 482 mg/L 421 mg/L 8 SM2540C1997 25 (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&7550-22. Page 8 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Mebane WRRF, NC0021474 Renewal Upper Cape Fear 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: ❑ Basic Application Information packet Supplemental Application Information packet: gay. Part D(Expanded Effluent Testing Data) II Part E(Toxicity Testing: Biomonitoring Data) If Part F(Industrial User Discharges and RCRA/CERCLA Wastes) 0 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 properly 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 Dennis J. odcie,Water Resources Director Signature 14` Telephone number (919)304-9215 Date signed 11/30/2018 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 permitting requirements. SEND COMPLETED FORMS TO: NCDENR/ DWQ Attn: NPDES Unit 1617 Mail Service Center Raleigh, North Carolina 27699-1617 EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 9 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Mebane WRRF, NC0021474 Renewal Upper Cape Fear SUPPLEMENTAL APPLICATION INFORMATION PART D. EXPANDED EFFLUENT TESTING DATA Refer to the directions on the cover page to determine whether this section applies to the treatment works. Effluent Testing: 1.0 mgd and Pretreatment Works. If the treatment works has a design flow greater than or equal to 1.0 mgd or it has(or is required to have)a pretreatment program,or is otherwise required by the permitting authority to provide the data,then provide effluent testing data for the following pollutants. Provide the indicated effluent testing information and any other information 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 analyses conducted using 40 CFR Part 136 methods. In addition,these 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. Indicate in the blank rows provided below any data you may have on pollutants not specifically listed in this form. At a minimum,effluent testing data must be based on at least three pollutant scans and must be no more than four and one-half years old. Outfall number: 001 (Complete once for each outfall discharging effluent to waters of the United States.) MAXIMUM DAILY DISCHARGE AVERAGE DAILY DISCHARGE POLLUTANT Number ANALYTICAL ML/MDL Conc. Units Mass Units Conc. Units Mass Units of METHOD Samples METALS(TOTAL RECOVERABLE),CYANIDE,PHENOLS,AND HARDNESS. <25.0 u r <25 u /L 3 SM311362004 25&5 ANTIMONY g-L 9 &EPA200.7 ARSENIC <10.0 ug/L <10.0 uglL 20 EPA200.7 10&5 BERYLLIUM <1.0 ug/L <1.0 ug/L 3 EPA200.7 1 CADMIUM <2.0 ug/L <2.0 ug/L 20 EPA200.7 2 CHROMIUM <5.0 ug/L <5.0 ug/L 20 EPA200.7 5 COPPER 9.0 ug/t 3.2 uglL 20 SM3113B2004 2 &EPA200.8 LEAD <5.0 ug/L <5.0 ug/L 20 EPA200.7 5 MERCURY 7.41 ng/L 3.0 ng/L 20 EPA1631 1 NICKEL 6.0 ug/L <5.0 ug/L 20 EPA200.7 5 SELENIUM <10.0 ug/L <10.0 ug/L 20 EPA200.7 10&5 SILVER <5.0 ug/L <5.0 ug/L 20 EPA200.7 5&1 THALLIUM <5.0 ug/L <5.0 ug/L 3 EPA200.7 5 ZINC 229 ug/L 77.7 ug/L 20 EPA200.7 10 CYANIDE 9.0 ug1L <5.0 ug/L 20 SM45 99 NE19 5 TOTAL PHENOLIC <5.0 uglL <5.0 ug/L 3 EPA420.1 5.0 COMPOUNDS HARDNESS(as CaCO3) 117 mglL 69.8 mg/L 57 SM2340C1997 1 Use this space(or a separate sheet)to provide information on other metals requested by the permit writer • EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 10 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Mebane WRRF, NC0021474 Renewal Upper Cape Fear Outfall number: 001 (Complete once for each outfall discharging effluent to waters of the United States.) MAXIMUM DAILY DISCHARGE AVERAGE DAILY DISCHARGE POLLUTANT Number ANALYTICAL ML/MDL Conc. Units Mass Units Conc. Units Mass Units of METHOD Samples VOLATILE ORGANIC COMPOUNDS ACROLEIN <0.1 mg/L <0.1 mg/L 3 EPA624 0.1 ACRYLONITRILE <0.1 mg/L <0.1 mg/L 3 EPA624 0.1 BENZENE <0.01 mg/L <0.01 mg/L 3 EPA624 0.01 BROMOFORM <0.01 mg/L <0.01 mg/L 3 EPA624 0.01 CARBON <0.01 mg/L <0.01 mg/L 3 EPA624 0.01 TETRACHLORIDE CHLOROBENZENE <0.01 mg/L <0.01 mg/L 3 EPA624 0.01 CHLORODIBROMO- <0.01 mg/L <0.01 mg/L 3 EPA624 0.01 METHANE CHLOROETHANE <0.01 mg/L <0.01 mg/L 3 EPA624 0.01 2-CHLOROETHYLVINYL <0.01 mg/L <0.01 mg/L 3 EPA624 0.01 ETHER CHLOROFORM <0.01 mg/L <0.01 mg/L 3 EPA624 0.01 DICHLOROBROMO- <0.01 mg/L <0.01 mg/L 3 EPA624 0.01 METHANE 1,1-DICHLOROETHANE <0.01 mg/L <0.01 mg/L 3 EPA624 0.01 1,2-DICHLOROETHANE <0.01 mg/L <0.01 mg/L 3 EPA624 0.01 TRANS-1,2-DICHLORO- <0 01 mg/L <0.01 mg/L 3 EPA624 0.01 ETHYLENE 1,1-DICHLORO- <0.01 mg/L <0.01 mg/L 3 EPA624 0.01 ETHYLENE I I 1,2-DICHLOROPROPANE <0.01 mg/L <0.01 mg/L 3 EPA624 0.01 1,3-DICHLORO- <0.01 mg/L <0.01 mg/L 3 EPA624 0.01 PROPYLENE ETHYLBENZENE <0.01 mg/L <0.01 mg/L 3 EPA624 0.01 METHYL BROMIDE <0.01 mg/L <0.01 mg/L 3 EPA624 0.01 METHYL CHLORIDE <0.01 mg/L <0.01 mg/L 3 EPA624 0.01 METHYLENE CHLORIDE <0.01 mg/L <0.01 mg/L 3 EPA624 0.01 1,1,2,2-TETRA- <0.01 mg/L <0.01 mg/L 3 EPA624 0.01 CHLOROETHANE TETRACHLORO- <0.01 mg/L <0.01 mg/L 3 EPA624 0.01 ETHYLENE 1 TOLUENE <0.01 mg/L <0.01 mg/L 3 EPA624 0.01 Pa a 11 of 22 EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. g FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Mebane WRRF, NC0021474 Renewal Upper Cape Fear Outfall number: 001 (Complete once for each outfall discharging effluent to waters of the United States.) MAXIMUM DAILY DISCHARGE AVERAGE DAILY DISCHARGE POLLUTANT Number ANALYTICAL ML/MDL Conc. Units Mass Units Conc. Units Mass Units of METHOD Samples 1,1,1- <0.01 mg/L <0.01 mg/L 3 EPA624 0.01 TRICHLOROETHANE 1,1,2- <0.01 mg/L <0.01 mg/L 3 EPA624 0.01 TRICHLOROETHANE TRICHLOROETHYLENE <0.01 mg/L <0.01 mg/L 3 EPA624 0.01 VINYL CHLORIDE <0.01 mg/L <0.01 mg/L 3 EPA624 0.01 Use this space(or a separate sheet)to provide information on other volatile organic compounds requested by the permit writer ACID-EXTRACTABLE COMPOUNDS P-CHLORO-M-CRESOL <0.01 mglL <0.01 mglL 3 EPA625 0.01 2-CHLOROPHENOL <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 2,4-DICHLOROPHENOL <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 2,4-DIMETHYLPHENOL <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 4,6-DINITRO-O-CRESOL <0-05 mg/L <0.05 mg/L 3 EPA625 0.05 2,4-DINITROPHENOL <0.05 mg/L <0.05 mg/L 3 EPA625 0.05 2-NITROPHENOL <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 4-NITROPHENOL <0.05 mg/L <0.05 mg/L 3 EPA625 0.05 PENTACHLOROPHENOL <0.05 mg/L <0.05 mg/L 3 EPA625 0.05 PHENOL <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 2,4,6- <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 TRICHLOROPHENOL Use this space(or a separate sheet)to provide information on other acid-extractable compounds requested by the permit writer BASE-NEUTRAL COMPOUNDS ACENAPHTHENE <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 ACENAPHTHYLENE <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 ANTHRACENE <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 BENZIDINE <0.05 mg/L <0.05 mg/L 3 EPA625 0.05 BENZO(A)ANTHRACENE <0.01 mglL <0.01 mg/L 3 EPA625 0.01 BENZO(A)PYRENE <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 I EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 12 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Mebane WRRF, NC0021474 Renewal Upper Cape Fear Outfall number: 001 (Complete once for each outfall discharging effluent to waters of the United States.) MAXIMUM DAILY DISCHARGE AVERAGE DAILY DISCHARGE POLLUTANT Number ANALYTICAL ML/MDL Conc. Units Mass Units Conc. Units Mass Units of METHOD Samples 3,4 BENZO- <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 FLUORANTHENE BENZO(GHI)PERYLENE <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 LB UORAN)THENE <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 FBIS(2-CHLOROETHOXY) <0.01 mgfL <0.01 mg/L 3 EPA625 0.01 METHANE BIS(2-CHLOROETHYL)- <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 ETHER BIS(2-CHLOROISO- <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 PROPYL)ETHER BIS(2-ETHYLHEXYL) <0.01 mg/L <0.01 mgfL 3 EPA625 0.01 PHTHALATE 4-BROMOPHENYL <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 PHENYL ETHER BUTYL BENZYL <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 PHTHALATE 2-CH <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 NAPHTHALENE 4-CHLORPHENYL <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 PHENYL ETHER CHRYSENE <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 DI-N-BUTYL PHTHALATE <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 DI-N-OCTYL PHTHALATE <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 DIBENZO(A,H) <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 ANTHRACENE 1,2-DICHLOROBENZENE <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 1,3-DICHLOROBENZENE <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 1,4-DICHLOROBENZENE <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 3,3-DICHLORO- <0.02 mg/L <0.02 mg/L 3 EPA625 0.02 BENZIDINE DIETHYL PHTHALATE <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 DIMETHYL PHTHALATE <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 2,4-DINITROTOLUENE <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 2,6-DINITROTOLUENE <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 1,2-DIPH NYL- <0.05 mg/L <0.05 mg/L 3 EPA625 0.05 HYDRAZINE EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 13 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Mebane WRRF, NC0021474 Renew-aI Upper Cape Fear Outfall number: 001 (Complete once for each outfall discharging effluent to waters of the United States.) MAXIMUM DAILY DISCHARGE AVERAGE DAILY DISCHARGE POLLUTANT Number ANALYTICAL ML/MDL Conc. Units Mass Units Conc. Units Mass Units of METHOD Samples FLUORANTHENE <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 FLUORENE <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 HEXACHLOROBENZENE <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 HEXACHLORO- <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 BUTADIENE HEXACHLOROCYCLO- <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 PENTADIENE HEXACHLOROETHANE <0.01 mg/L <0.01 mg!L 3 EPA625 0.01 INDENO(1,2,3-CD) . <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 PYRENE ISOPHORONE <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 NAPHTHALENE <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 NITROBENZENE <0.01 mg!L <0.01 mg/L 3 EPA625 0.01 N-NITROSODI-N- <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 1 PROPYLAMINE 1 N-NITROSODI- <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 METHYLAMINE N-NITROSODI- <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 PHENYLAMINE PHENANTHRENE <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 PYRENE <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 1,2,4- <0.01 mg/L <0.01 mg/L 3 EPA625 0.01 TRICHLOROBENZENE Use this space(or a separate sheet)to provide information on other base-neutral compounds requested by the permit writer Use this space(or a separate sheet)to provide information on other pollutants(e.g.,pesticides)requested by the permit writer END OF PART D. 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&7550-22. Page 14 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Mebane WRRF, NC0021474 Renewal Upper Cape Fear SUPPLEMENTAL APPLICATION INFORMATION PART E. TOXICITY TESTING DATA POTWs meeting one or more of the following criteria must provide the results of whole effluent toxicity tests for acute or chronic toxicity for each of the facility's discharge points: 1)POTWs with a design flow rate greater than or equal to 1.0 mgd;2)POTWs with a pretreatment program(or those that are required to have one under 40 CFR Part 403);or 3)POTWs required by the permitting authority to submit data for these parameters. • At a minimum,these results must include quarterly testing for a 12-month period within the past 1 year using multiple species(minimum of two species),or the results from four tests performed at least annually in the four and one-half years prior to the application,provided the results show no appreciable toxicity,and testing for acute and/or chronic toxicity,depending on the range of receiving water dilution. 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. • In addition,submit the results of any other whole effluent toxicity tests from the past four and one-half years. If a whole effluent toxicity test conducted during the past four and one-half years revealed toxicity,provide any information on the cause of the toxicity or any results of a toxicity reduction evaluation,if one was conducted. • If you have already submitted any of the information requested in Part E,you need not submit it again. Rather,provide the information requested in question E.4 for previously submitted information. If EPA methods were not used,report the reasons for using alternate methods. If test summaries are available that contain all of the information requested below,they may be submitted in place of Part E. If no biomonitoring data is required,do not complete Part E. Refer to the Application Overview for directions on which other sections of the form to complete. E.1. Required Tests. Indicate the number of whole effluent toxicity tests conducted in the past four and one-half years. 0 chronic 0 acute E.2. Individual Test Data. Complete the following chart for each whole effluent toxicity test conducted in the last four and one-half years. Allow one column per test(where each species constitutes a test). Copy this page if more than three tests are being reported. Test number: Test number: Test number: a. Test information. Test Species&test method number Age at initiation of test Outfall number Dates sample collected Date test started Duration b. Give toxicity test methods followed. Manual title Edition number and year of publication Page number(s) 1 c. Give the sample collection method(s)used. For multiple grab samples,indicate the number of grab samples used. 24-Hour composite Grab d. Indicate where the sample was taken in relation to disinfection. (Check all that apply for each. Before disinfection After disinfection After dechlorination EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 15 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Mebane WRRF, NC0021474 Renewal Upper Cape Fear Test number: Test number: Test number: e. Describe the point in the treatment process at which the sample was collected. Sample was collected: f. For each test,include whether the test was intended to assess chronic toxicity,acute toxicity,or both Chronic toxicity Acute toxicity g. Provide the type of test performed. Static Static-renewal Flow-through h. Source of dilution water. If laboratory water,specify type;if receiving water,specify source. Laboratory water Receiving water i. Type of dilution water. If salt water,specify"natural"or type of artificial sea salts or brine used. Fresh water Salt water j. Give the percentage effluent used for all concentrations in the test series. k. Parameters measured during the test. (State whether parameter meets test method specifications) pH Salinity Temperature Ammonia Dissolved oxygen I. Test Results. Acute: Percent survival in 100% % effluent LCso 95%C.I. Control percent survival % % Other(describe) EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 16 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Mebane WRRF, NC0021474 Renewal Upper Cape Fear Chronic: NOEC IC25 % °/O °/O Control percent survival Other(describe) m. Quality Control/Quality Assurance. Is reference toxicant data available? Was reference toxicant test within 1 acceptable bounds? What date was reference toxicant test run(MM/DD/YYYY)? Other(describe) E.3. Toxicity Reduction Evaluation. Is the treatment works involved in a Toxicity Reduction Evaluation? ❑ Yes No If yes,describe: E.4. Summary of Submitted Biomonitoring Test Information. If you have submitted biomonitoring test information,or information regarding the cause of toxicity,within the past four and one-half years,provide the dates the information was submitted to the permitting authority and a summary of the results. Date submitted: / / (MM/DD/YYYY) Summary of results: (see instructions) Primary species WET analyses have been conducted and submitted quarterly and have been compliant. Additionally, second species WET was conducted and submitted for October 2017 and January,April, and July 2018 and all were compliant. END OF PART E. 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&7550-22. Page 17 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Mebane WRRF, NC0021474 Renewal Upper Cape Fear SUPPLEMENTAL APPLICATION INFORMATION PART F.INDUSTRIAL USER DISCHARGES AND RCRA/CERCLA WASTES All treatment works receiving discharges from significant industrial users or which receive RCRA,CERCLA,or other remedial wastes must complete part F. GENERAL INFORMATION: F.1. Pretreatment program. Does the treatment works have,or is subject to,an approved pretreatment program? El Yes ❑ No F.2. Number of Significant Industrial Users(SIUs)and Categorical Industrial Users(CIUs). Provide the number of each of the following types of industrial users that discharge to the treatment works. a. Number of non-categorical SlUs. 2 b. Number of CIUs. 3 SIGNIFICANT INDUSTRIAL USER INFORMATION: Supply the following information for each SIU. If more than one SIU discharges to the treatment works,copy questions F.3 through F.8 and provide the information requested for each SIU. F.3. Significant Industrial User Information. Provide the name and address of each SIU discharging to the treatment works. Submit additional pages as necessary. Name: Industrial Connections&Solutions,LLC Mailing Address: 6801 Industrial Drive Mebane,NC 27302 F.4. Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge. Phosphating,cleaning,and painting of fabricated steel parts. WW is pretreated prior to discharge to POTW. F.5. Principal Product(s)and Raw Material(s). Describe all of the principal processes and raw materials that affect or contribute to the SIU's discharge. Principal product(s): Low&medium voltage switchgear,electric vehicle charging stations,and automatic transfer switches Raw material(s): Steel,copper,aluminum F.6. Flow Rate. a. Process wastewater flow rate. Indicate the average daily volume of process wastewater discharge into the collection system in gallons per day(gpd)and whether the discharge is continuous or intermittent. 6,600 gpd ( continuous or X intermittent) b. Non-process wastewater flow rate. Indicate the average daily volume of non-process wastewater flow discharged into the collection system in gallons per day(gpd)and whether the discharge is continuous or intermittent. 2,300 gpd (X continuous or intermittent) F.7. Pretreatment Standards. Indicate whether the SIU is subject to the following: a. Local limits CI Yes ❑ No b. Categorical pretreatment standards C Yes ❑ No If subject to categorical pretreatment standards,which category and subcategory? 43:3.15 EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 18 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Mebane WRRF, NCOO21474 Renewal Upper Cape Fear F.8. Problems at the Treatment Works Attributed to Waste Discharge by the SIU. Has the SIU caused or contributed to any problems(e.g., upsets,interference)at the treatment works in the past three years? O Yes ® No If yes,describe each episode. (Additional SIU information attached) RCRA HAZARDOUS WASTE RECEIVED BY TRUCK, RAIL,OR DEDICATED PIPELINE: F.9. RCRA Waste. Does the treatment works receive or has it in the past three years received RCRA hazardous waste by truck,rail or dedicated pipe? O Yes h No(go to F.12) F.10. Waste transport. Method by which RCRA waste is received(check all that apply): ❑ Truck 0 Rail 0 Dedicated Pipe F.11. Waste Description. Give EPA hazardous waste number and amount(volume or mass,specify units). EPA Hazardous Waste Number Amount Units CERCLA(SUPERFUND)WASTEWATER, RCRA REMEDIATION/CORRECTIVE ACTION WASTEWATER,AND OTHER REMEDIAL ACTIVITY WASTEWATER: F.12. Remediation Waste. Does the treatment works currently(or has it been notified that it will)receive waste from remedial activities? ❑ Yes(complete F.13 through F.15.) @ No F.13. Waste Origin. Describe the site and type of facility at which the CERCLA/RCRA/or other remedial waste originates(or is excepted to originate in the next five years). F.14. Pollutants. List the hazardous constituents that are received(or are expected to be received). Include data on volume and concentration,if known. (Attach additional sheets if necessary.) F.15. Waste Treatment. a. Is this waste treated(or will be treated)prior to entering the treatment works? ❑ Yes ❑ No If yes,describe the treatment(provide information about the removal efficiency): b. Is the discharge(or will the discharge be)continuous or intermittent? ❑ Continuous 0 Intermittent If intermittent,describe discharge schedule. END OF PART F. 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&7550-22. Page 19 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Mebane WRRF, NC0021474 Renewal Upper Cape Fear SUPPLEMENTAL APPLICATION INFORMATION PART G. COMBINED SEWER SYSTEMS If the treatment works has a combined sewer system,complete Part G. G.1. System Map. Provide a map indicating the following: (may be included with Basic Application Information) a. All CSO discharge points. b. Sensitive use areas potentially affected by CSOs(e.g.,beaches,drinking water supplies,shellfish beds,sensitive aquatic ecosystems,and outstanding natural resource waters). c. Waters that support threatened and endangered species potentially affected by CSOs. G.2. System Diagram. Provide a diagram,either in the map provided in G.1 or on a separate drawing,of the combined sewer collection system that includes the following information. a. Location of major sewer trunk lines,both combined and separate sanitary. b. Locations of points where separate sanitary sewers feed into the combined sewer system. c. Locations of in-line and off-line storage structures. d. Locations of flow-regulating devices. e. Locations of pump stations. CSO OUTFACES: Complete questions G.3 through G.6 once for each CSO discharge point. G.3. Description of Outfall. a. Outfall number b. Location (City or town,if applicable) (Zip Code) (County) (State) (Latitude) (Longitude) c. Distance from shore(if applicable) ft. d. Depth below surface(if applicable) ft. e. Which of the following were monitored during the last year for this CSO? ❑ Rainfall 0 CSO pollutant concentrations ❑ CSO frequency ❑ CSO flow volume 0 Receiving water quality f. How many storm events were monitored during the last year? G.4. CSO Events. a. Give the number of CSO events in the last year. events (0 actual or 0 approx.) b. Give the average duration per CSO event. hours (0 actual or 0 approx.) EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 20 of 22 FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN: Mebane WRRF, NC0021474 Renewal Upper Cape Fear c. Give the average volume per CSO event. million gallons(0 actual or 0 approx.) d. Give the minimum rainfall that caused a CSO event in the last year Inches of rainfall G.5. Description of Receiving Waters. a. Name of receiving water: b. Name of watershed/river/stream system: United State Soil Conservation Service 14-digit watershed code(if known): c. Name of State Management/River Basin: United States Geological Survey 8-digit hydrologic cataloging unit code(if known): G.6. CSO Operations. Describe any known water quality impacts on the receiving water caused by this CSO(e.g.,permanent or intermittent beach closings,permanent or intermittent shell fish bed closings,fish kills,fish advisories,other recreational loss,or violation of any applicable State water quality standard). END OF PART G. 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"!C4. / ,'/' /.; /�/i�ii F-^^ // . 7, / ^^.., \ r // am \ q: '»✓ g,). ».2'' I 'Xtt' ' 7�'/' %ii'//� / [, 4\1 /ir cl,./. _ _ ru PROX imaI �- x i / ////iir/i%/i/......,..... lip '\ m - . I, = '?'i/,,;„"'/71'- ���r/ ` 4.f amw mi.E __.......e �.... s..°°' 1 \,Z,, •._=wae.rs r r'S"--. ,//�' %% /s;�J...�.e.w�s_�� .,r` / wRNgS n r �, —/ r r /.'..I..t6_I n... .. - _ _^ ' ' // iw�""^/. /, ,\ "`"'" r, � `s "fr.''- ▪ _..• ,/ /� - ^_---^- ''. 'yam'' /�,Z�'%i/., / / a / LOCADONI '�'s',�.o. �� 2�z:w•�� 7""""a / / i / r I i i /,/ / /.' /ter �, is-��t�.�� ae__---....1_"-" ,,,--- " — / i i 1 / F CRYOFMENANE _ '' '�:.+• ▪ __ / ( i 1 /J ' //`/'/,' ' / .J' /.i /i Deed Bk.739 Page '.D� ew ^ _ .. —� wJ/. . .',%/�i/J//, / i J' 0' M' Ft IAl. rap• 100' alley,williams,carmen es ling,inc. _ _ "` ,rnene �` noro all ENGINEERS,ARCHITECTS6 SURVEYORS CITY'OF MEBANE WATER RESOURCE RECOVERY FACILITY(WRRF) Wm WRRF SITE .a. l �i °°1^^•al^°I�^ R' „TS NPDES PERMIT FACILITY MAP MN I. PLAN I �,r «. . z,z13 936 26333, MELVILLE TOWNSHIP-ALAMANCE COU1vIY,NORTH i CAROLINA MEBANE,NORTH CAROLINA OWN I..NN ,1 B2.Topographic Map NPDES FORM 2A Additional Information .ae w ,.5+" g+t, a." snar,mo<�u�'I 1ae1009 490,I e„p3"llj NIMdMO eloziantt 31do iN OIHdt1890d01 '"�°'" - Nsi ne a3N�3N�! 1Nd7d 1N3W1d32112131dM31SdM 3NIY83W dO illl7 „=�V y. W9S A9 NMV80 � t , pua6a�, s h 4 ''' tts `>"- w tL ' '' ..r,.Q Yy 4anA' e Fes^', �..... ay ..,., , t. ,A sx , 4 , «- ,. B3.Process Flow Diagram/Schematic NPDES FORM 2A Additional Information DIGESTER SLUDGE TO COMPOST FACIUTY AFTER CONTRACTED DEWATERING SLUDGE SLUDGE DIGESTER DIGESTER SUPERNATANT ROTARY DRUM _._. .. - _.._.... SLUDGE THICKENER RETURN SLUDGE PUMP STATION SLUDGE RETURN ._... _.__... - ...= WASTE SLUDGE I SL° -- - CLARIFIER BISULFITE ,..- AERATION BASIN NO.1 - - HYPOCHLORITE ADDITION ADDITION EFFLUENT FLOW I BAR ' 4 ` O�F, r FINAL MEASUREMENT FILTERS SCREEN PARSHALL 5`' FLUME INFLUENT - rj - SPLITTER - EFFLUENT DISTRIBUTION BOX CLARIFIER BOX GRIT CHAMBER i 0 0 i ' - AERATION BASIN NO.2 " -- CLARIFIER • POLY- ©-SAMPLING LOCATION "" AL POCHLORIINUM. PUMPS CHLORIDE 25/14 HP FLOATING STORAGE FILTER !\ - - - 0]e\. FILTER BACKWASH BACKWASH A PUMPS A-,..__AERATOR.TYP ,.,,\\ ®° n° n°Q III SCHEMATIC FLOW DIAGRAM-2.50 MGD MEBANE WWTP OOP ❑ _ i INFLUENT PROBES INFLUENT I EFFLi,'6N1 BRAS -'T=-^ D.O^� I El] PROBE ', IC, Q 1_�i ® ® 1 `\\ D.O. �..ORP J/ PROBE PROBE a SAMPLING LOCATIONS IN AERATION BASIN NO. 1 till' alley, wllllams, carmen be king, inc, MEBANE WASTEWATER CITY OF MEBANE // ENGINEERS,ARCHITECTS SURVEYORS TREATMENT PLANT / 740 chapel hill rood p.o.boo 1179 SCHEMATIC FLOW I ' • .' burlington,n.o.27215 335/226-5534 DIAGRAM MEBANE,NORTH CAROLINA JOB NO.121e9 Firm',Engineering Ucenee No.F-0203 srkr N/A Idrr 11/30/18 loge. WDF " I B3.Process Flow Diagram/Schematic(Narrative&Water Balance): The treatment process consists of the following structures: Influent Bar Screen-This structure removes the larger objects that may enter the collection system such as sticks,rags,and other such debris to prevent damage to pumps and other equipment Grit Chamber-This structure removes the smaller inorganic(non-decomposable)debris such as sand,gravel and cinders.This prevents unnecessary wear on the pumps,valves,etc.in the plant. Influent Flow Measurement—Parshall Flume—(1.350 MGD,current annual average flow) Aeration Basins—These structures supply air to a mixture of wastewater,bacteria,and other microorganisms.Oxygen in the air speeds the growth of helpful microorganisms,which consume harmful organic matter in the wastewater. The City has 2 aeration basins ran in parallel. (0.675 MG/basin x 2 Basins=1.350 MG) Final Clarifiers-These structures separate the settleable solids(Activated Sludge)formed in the Aeration Basins from the treated water.The treated water is discharged to the Cloth Media Disk Filters and the activated sludge is either returned to the Aeration Basins(Return Activated Sludge-RAS) to treat more wastes or to Rotary Drum Thickener if it is no longer needed(Waste Activated Sludge-WAS). (0.3375MG Clarifier 1+0.3375MG Clarifier 2+0.675MG Clarifier 3) Cloth Media Disk Filters—These structures help remove any remaining suspended solids in the water.The filters are regularly backwashed to remove the trapped solids and return to the head of the plant for treatment. (0.3375MG A+0.3375MG B+0.3375MG C+0.3375MG D) Chlorine Contact Basin—This structure is where sodium hypochlorite is mixed with the wastewater to act as a disinfectant.(1.350MGD) Dechlorination Basin—This structure is where sodium bisulfite is mixed with the wastewater to reduce the chlorine levels.(1.350MGD) Reaeration Basin-This structure adds air(Dissolved Oxygen-D.O.)to the treated water(Effluent)before it is discharged into Moadams creek. (1.350MGD) Effluent—(1.350MGD) Rotary Drum Thickener-This structure takes the Waste Activated Sludge(WAS)and removes even more water,with the addition of polymers,than is possible through normal settling.The water that is removed is returned to the start of the plant to be treated again.This is done to reduce the space required for final digestion.The thickened sludge is discharged to the Aerobic Digesters for further treatment. Aerobic Digesters-These structures further treat the sludge and organic solids removed from the water during the treatment process. The digestion consists of continuously aerating the sludge without the addition of new food,other than the sludge itself,so the sludge is always in the endogenous (A reduced level of respiration in which organisms break down compounds within their own cells to produce the oxygen they need.)region.The City has 2 digesters ran in series. The City has contracted with a third party(currently EMA Resources)to dewater the biosolids from the aerobic digesters. The dewatered biosolids are then transported by EMA Resources for use in the production of compost by an additional third party. NPDES FORM 2A Additional Information SIGNIFICANT INDUSTRIAL USER INFORMATION: Supply the following information for each SIU. If more than one SIU discharges to the treatment works,copy questions F.3 through F.8 and provide the information requested for each SIU. F.3. Significant Industrial User Information. Provide the name and address of each SIU discharging to the treatment works. Submit additional pages as necessary. Name: Liggett Group LLC Mailing Address: 100 Maple Lane Mebane,NC 27302 F.4. Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge. Flavor kitchen clean up.general facility washdown,food grade chemical storage tank cleanup,and air washer blowdown F.S. Principal Product(s)and Raw Material(s). Describe all of the principal processes and raw materials that affect or contribute to the SIU's discharge. Principal product(s): Cigarettes Raw material(s): Tobacco,low invert sugar,high fructose corn syrup.glycerin.propylene glycol F.6. Flow Rate. a.Process wastewater flow rate. Indicate the average daily volume of process wastewater discharge into the collection system in gallons per day(gpd)and whether the discharge is continuous or intermittent. 35,000 gpd (X continuous or intermittent) b. Non-process wastewater flow rate. Indicate the average daily volume of non-process wastewater flow discharged into the collection system in gallons per day(gpd)and whether the discharge is continuous or intermittent. 36,000 gpd (X continuous or intermittent) F.7. Pretreatment Standards. Indicate whether the SIU is subject to the following: a. Local limits 0 Yes ❑ No b. Categorical pretreatment standards ❑ Yes ® No If subject to categorical pretreatment standards,which category and subcategory? F.B. Problems at the Treatment Works Attributed to Waste Discharge by the SIU. Has the SIU caused or contributed to any problems(e.g., upsets,interference)at the treatment works in the past three years? ❑ Yes ® No If yes,describe each episode. NPDES FORM 2A Additional Information SIGNIFICANT INDUSTRIAL USER INFORMATION: Supply the following information for each SIU. If more than one SIU discharges to the treatment works,copy questions F.3 through F.8 and provide the information requested for each SIU. F.3. Significant Industrial User Information. Provide the name and address of each SIU discharging to the treatment works. Submit additional pages as necessary. Name: MetoKote Corporation Mailing Address: 1020 Corporate Park Drive Mebane,NC 27302 F.4. Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge. Phosphating,cleaning,and painting of miscellaneous metal parts. WW is pretreated before discharge to POTW. F.5. Principal Product(s)and Raw Material(s). Describe all of the principal processes and raw materials that affect or contribute to the SIU's discharge. Principal product(s): Coated&painted metal parts Raw material(s): Miscellaneous metal parts F.6. Flow Rate. a.Process wastewater flow rate. Indicate the average daily volume of process wastewater discharge into the collection system in gallons per day(gpd)and whether the discharge is continuous or intermittent. 3.450 gpd (X continuous or intermittent) b. Non-process wastewater flow rate. Indicate the average daily volume of non-process wastewater flow discharged into the collection system in gallons per day(gpd)and whether the discharge is continuous or intermittent. 1.020 gpd (X continuous or intermittent) F.7. Pretreatment Standards. Indicate whether the SIU is subject to the following: a. Local limits ® Yes ❑ No b. Categorical pretreatment standards ® Yes ❑ No If subject to categorical pretreatment standards,which category and subcategory? 433.17 F.8. Problems at the Treatment Works Attributed to Waste Discharge by the SIU. Has the SIU caused or contributed to any problems(e.g., upsets,interference)at the treatment works in the past three years? 0 Yes @ No If yes,describe each episode. NPDES FORM 2A Additional Information SIGNIFICANT INDUSTRIAL USER INFORMATION: Supply the following information for each SIU. If more than one SIU discharges to the treatment works,copy questions F.3 through F.8 and provide the information requested for each SIU. F.3. Significant Industrial User Information. Provide the name and address of each SIU discharging to the treatment works. Submit additional pages as necessary. Name: Sandvik Machining Solutions US LLC Mailing Address: 1483 Dogwood Way Mebane,NC 27302 F.4. Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge. Black oxide coating. WW pretreated prior to discharge. F.5. Principal Product(s)and Raw Material(s). Describe all of the principal processes and raw materials that affect or contribute to the SIU's discharge. Principal product(s): Toolholder.milling cutter,drills,boring bars&special tooling Raw material(s): Steel,aluminum F.6. Flow Rate. a.Process wastewater flow rate. Indicate the average daily volume of process wastewater discharge into the collection system in gallons per day(gpd)and whether the discharge is continuous or intermittent. 606 gpd (X continuous or intermittent) b. Non-process wastewater flow rate. Indicate the average daily volume of non-process wastewater flow discharged into the collection system in gallons per day(gpd)and whether the discharge is continuous or intermittent. 2,450 gpd (X continuous or intermittent) F.7. Pretreatment Standards. Indicate whether the SIU is subject to the following: a. Local limits ID Yes 0 No b. Categorical pretreatment standards ® Yes ❑ No If subject to categorical pretreatment standards,which category and subcategory? 433.17 F.8. Problems at the Treatment Works Attributed to Waste Discharge by the SIU. Has the SIU caused or contributed to any problems(e.g., upsets,interference)at the treatment works in the past three years? 0 Yes ® No If yes,describe each episode. NPDES FORM 2A Additional Information SIGNIFICANT INDUSTRIAL USER INFORMATION: Supply the following information for each SIU. If more than one SIU discharges to the treatment works,copy questions F.3 through F.8 and provide the information requested for each SIU. F.3. Significant Industrial User Information. Provide the name and address of each SIU discharging to the treatment works. Submit additional pages as necessary. Name: Svnergv Health Mailing Address: 1416 Dogwood Way Mebane,NC 27302 F.4. Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge. Wash&sterilize hospital gowns,surgical drapes,and stainless steel bowls&instruments. F.S. Principal Product(s)and Raw Material(s). Describe all of the principal processes and raw materials that affect or contribute to the SIU's discharge. Principal product(s): Sterilized hospital gowns,surgical drapes and stainless-steel bowls&instruments. Raw material(s): Soiled hospital gowns,surgical drapes and stainless-steel bowls&instruments. F.6. Flow Rate. a.Process wastewater flow rate. Indicate the average daily volume of process wastewater discharge into the collection system in gallons per day(gpd)and whether the discharge is continuous or intermittent. 44,200 gpd (X continuous or intermittent) b. Non-process wastewater flow rate. Indicate the average daily volume of non-process wastewater flow discharged into the collection system in gallons per day(gpd)and whether the discharge is continuous or intermittent. 1,500 gpd (X continuous or intermittent) F.7. Pretreatment Standards. Indicate whether the SIU is subject to the following: a. Local limits Yes ❑ No b. Categorical pretreatment standards 0 Yes ® No If subject to categorical pretreatment standards,which category and subcategory? F.B. Problems at the Treatment Works Attributed to Waste Discharge by the SIU. Has the SIU caused or contributed to any problems(e.g., upsets,interference)at the treatment works in the past three years? ❑ Yes ® No If yes,describe each episode. NPDES FORM 2A Additional Information