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Home My WebLink AboutNC0072125_Compliance Evaluation Inspection_20240516DocuSign Envelope ID: 4222EOFO-4823-4585-A845-807DB965004C ROY COOPER Governor ELIZABETH S. BISER Secretary RICHARD E. ROGERS, JR. Director Elton Daniels City of Rocky Mount PO Box 1180 Rocky Mount, NC 27802-1180 NORTH CAROLINA Environmental Quality May 16, 2024 SUBJECT: COMPLIANCE EVALUATION INSPECTION REPORT NPDES Permit No. NCO072125 Tar River WTP Nash County Dear Mr. Daniels: On April 17, 2024, Division of Water Resources (DWR) Raleigh Regional Office (RRO) staff Jesse Barnes conducted a routine compliance evaluation inspection at the Tar River WTP in reference to NPDES permit NC0072125. ORC Jim Connolly was present during the inspection. A review of records, data, treatment components, operations, maintenance, and the outfall area was completed. This review reflected compliance with the subject permit. Observations are listed below. Inspection findings are detailed in the attached Water Compliance Inspection Report. Observations The Tar River WTP is located at 4489 Leaston Road in Rocky Mount, Nash County, NC. Version 5.0 of NPDES permit NCO072125 became effective April 1, 2020, and will expire at midnight on October 31, 2024. A permit renewal application was received by DWR on April 29, 2024. If a permit renewal is not issued before the current permit version expires, the facility is authorized to continue operation in accordance with the most recently issued permit. The permitted facility is a conventional water treatment plant discharging treated wastewater from filter backwashing and sedimentation basin wasting, with treatment consisting of two 0.27 MG Trac Vac basins and a de - chlorination system. The facility is authorized to discharge treated wastewater to the Tar River [HUC: 030201010606; stream segment 28-(64.5)], designated Class WS-IV; NSW waters of the State within subbasin 03- 03-02 of the Tar -Pamlico River Basin. The facility was as described in the subject permit. The January 2024 discharge monitoring report (DMR) and associated laboratory reports, calibration records, chains of custody, and ORC visitation log were reviewed for completeness, transcription accuracy, and permit compliance. All reviewed records and reports appeared to be complete and compliant during the inspection with no errors found. Field parameters are performed in-house under laboratory certification # 5565. Non -field parameters are performed by Tar River Regional WWTP, certified lab # 125. Contracted lab Meritech Inc, certified lab # 165, performs toxicity testing. One automatic diesel standby power generator is available on site and can power the entire facility. The generator completes an extended run under load with the primary power source interrupted at least once monthly to comply with utility load limit requirements. The generator was not tested during the inspection. There is no formal emergency agreement with a fuel vendor for extended run on backup power. North Carolina Department of Environmental Quality I Division of Water Resources D E Q Raleigh Regional Office 13800 Barrett Drive I Raleigh, North Carolina 27609 NORTH CAROLINA oe M—A or E"r—untal Quality 919.791.4200 DocuSign Envelope ID: 4222EOFO-4823-4585-A845-807DB965004C Filter backwash and sedimentation basin waste is treated primarily in two 0.27 MG Trac Vac basins, where detention time is provided for settling and removal of solids. Accumulated sludge is removed by automatic Trac Vac vacuums. Solids handling equipment and storage appeared to be compliant and operating properly during the inspection. An automatic pumping system of liquid calcium thiosulfate is used for de -chlorination. De-chlor is fed into the Trac Vac basins, where detention time appeared to be adequate for de -chlorination. Chemical storage appeared to be compliant and the de -chlorination system appeared to be operating properly during the inspection. An ultrasonic flow meter measures effluent flow for compliance monitoring and reporting. The effluent flow meter is in place between de -chlorination and the outfall. The flow meter was last calibrated by Delta Systems Environmental Calibration on July 11, 2023. The flow meter appeared the operating properly during the inspection. Effluent samples are collected from a locked vault that allows access to the effluent pipe just before the pipe travels into the undeveloped riparian area on its way to the outfall. The effluent sampling vault was opened and inspected and appeared to be in good condition with clear effluent flow. A right-of-way to the outfall has been maintained and the area was accessible during the inspection. The outfall was observed to be discharging during the inspection. The outfall area was well maintained, the effluent appeared to be clear, and the receiving stream was free of foam and debris. Please be aware that DWR may take enforcement action against any individual who fails to comply with the requirements of all applicable permits, regulations, and/or statutes. Pursuant to NC General Statute (NCGS) 143- 215.6A, a civil penalty of not more than twenty-five thousand dollars ($25,000.00) may be assessed against any person who violates or fails to act in accordance with the terms, conditions, or requirements of any permit, or applicable regulations, issued pursuant to G.S. 143-215.1. If you need assistance, contact Jesse Barnes by phone at (919) 791-4254 or by email at iesse.barnes@deq.nc.gov. Thank you for your time and assistance. Sincerely, ocuSigned by: E�D a. f. �t.cun,ut,l,2916E6AB32144F... Vanessa E. Manuel, Assistant Regional Supervisor Water Quality Regional Operations Section Raleigh Regional Office Division of Water Resources, NCDEQ Attachments: 1. Water Compliance Inspection Report, NCO072125 Cc: Laserfiche NOR-H O/+RpLINAD LU North Carolina Department of Environmental Quality I Division of Water Resources Raleigh Regional Office 13800 Barrett Drive I Raleigh, North Carolina 27609 919.791.4200 DocuSign Envelope ID: 4222EOFO-4823-4585-A845-807DB965004C United States Environmental Protection Agency Form Approved. EPA Washington, D.C. 20460 OMB No. 2040-0057 Water Compliance Inspection Report Approval expires 8-31-98 Section A: National Data System Coding (i.e., PCS) Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type 1 IN 1 2 u 3 I NCO072125 111 121 24/04/17 I17 18 I C I 19 I s I 20L] 21111I I I I I I I II I I I I I I I I I I I I I I I I I I I I I I I II I I I I I r6 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA ---------------------- Reserved ------------------- 67 I 72 I n, I 71 I 74 79 I I I I I I I80 701 I 71 I LL -1 I I LJ Section B: Facility Data Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include Entry Time/Date Permit Effective Date POTW name and NPDES permit Number) 09:OOAM 24/04/17 20/04/01 Tar River WTP 4489 Leaston Rd Exit Time/Date Permit Expiration Date Rocky Mount NC 27803 10:OOAM 24/04/17 24/10/31 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Brenton Bent, PO Box 1180 Rocky Mount NC 278021180/Director of Water Resources/252-972-1299/ No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit 0 Flow Measurement Operations & Maintenar Records/Reports Self -Monitoring Progran 0 Facility Site Review Effluent/Receiving Wate Laboratory Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) (See attachment summary) Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date Jesse Barnes Docusigned by: DWR/RRO WQ/919-791-4254/ 5. Batir :p 5/14/2024 41797473D3194ED... Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date pocusigned by: 5/15/2024 EPA Form 356015t( 19E@4�Pt6Vious editions are obsolete. Page# DocuSign Envelope ID: 4222EOFO-4823-4585-A845-807DB965004C NPDES yr/mo/day Inspection Type (Cont.) NC0072125 I11 12I 24/04/17 117 18 i c i Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) On April 17, 2024, Division of Water Resources (DWR) Raleigh Regional Office (RRO) staff Jesse Barnes conducted a routine compliance evaluation inspection at the Tar River WTP in reference to NPDES permit NC0072125. ORC Jim Connolly was present during the inspection. A review of records, data, treatment components, operations, maintenance, and the outfall area was completed. This review reflected compliance with the subject permit. Observations are listed below. Inspection findings are detailed in the attached Water Compliance Inspection Report. Observations The Tar River WTP is located at 4489 Leaston Road in Rocky Mount, Nash County, NC. Version 5.0 of NPDES permit NCO072125 became effective April 1, 2020, and will expire at midnight on October 31, 2024. A permit renewal application was received by DWR on April 29, 2024. If a permit renewal is not issued before the current permit version expires, the facility is authorized to continue operation in accordance with the most recently issued permit. The permitted facility is a conventional water treatment plant discharging treated wastewater from filter backwashing and sedimentation basin wasting, with treatment consisting of two 0.27 MG Trac Vac basins and a de -chlorination system. The facility is authorized to discharge treated wastewater to the Tar River [HUC: 030201010606; stream segment 28-(64.5)], designated Class WS-IV; NSW waters of the State within subbasin 03-03-02 of the Tar -Pamlico River Basin. The facility was as described in the subject permit. The January 2024 discharge monitoring report (DMR) and associated laboratory reports, calibration records, chains of custody, and ORC visitation log were reviewed for completeness, transcription accuracy, and permit compliance. All reviewed records and reports appeared to be complete and compliant during the inspection with no errors found. Field parameters are performed in-house under laboratory certification # 5565. Non -field parameters are performed by Tar River Regional WWTP, certified lab # 125. Contracted lab Meritech Inc, certified lab # 165, performs toxicity testing. One automatic diesel standby power generator is available on site and can power the entire facility. The generator completes an extended run under load with the primary power source interrupted at least once monthly to comply with utility load limit requirements. The generator was not tested during the inspection. There is no formal emergency agreement with a fuel vendor for extended run on backup power. Filter backwash and sedimentation basin waste is treated primarily in two 0.27 MG Trac Vac basins, where detention time is provided for settling and removal of solids. Accumulated sludge is removed by automatic Trac Vac vacuums. Solids handling equipment and storage appeared to be compliant and operating properly during the inspection. An automatic pumping system of liquid calcium thiosulfate is used for de -chlorination. De-chlor is fed into the Trac Vac basins, where detention time appeared to be adequate for de -chlorination. Chemical storage appeared to be compliant and the de -chlorination system appeared to be operating properly during the inspection. An ultrasonic flow meter measures effluent flow for compliance monitoring and reporting. The effluent flow meter is in place between de -chlorination and the outfall. The flow meter was last calibrated by Delta Systems Environmental Calibration on July 11, 2023. The flow meter appeared the operating properly during the inspection. Effluent samples are collected from a locked vault that allows access tothe effluent pipe just before the pipe travels into the undeveloped riparian area on its way to the outfall. The effluent sampling vault was opened and inspected and appeared to be in good condition with clear effluent flow. Page# DocuSign Envelope ID: 4222EOFO-4823-4585-A845-807DB965004C Permit: NC0072125 Owner -Facility: Tar River WTP Inspection Date: 04/17/2024 Inspection Type: Compliance Evaluation A right-of-way to the outfall has been maintained and the area was accessible during the inspection. The outfall was observed to be discharging during the inspection. The outfall area was well maintained, the effluent appeared to be clear, and the receiving stream was free of foam and debris. Page# DocuSign Envelope ID: 4222EOFO-4823-4585-A845-807DB965004C Permit: NCO072125 Owner -Facility: Tar River WTP Inspection Date: 04/17/2024 Inspection Type: Compliance Evaluation Permit Yes No NA NE (If the present permit expires in 6 months or less). Has the permittee submitted a new ■ ❑ ❑ ❑ application? Is the facility as described in the permit? ■ ❑ ❑ ❑ # Are there any special conditions for the permit? ❑ ■ ❑ ❑ Is access to the plant site restricted to the general public? ■ ❑ ❑ ❑ Is the inspector granted access to all areas for inspection? ■ ❑ ❑ ❑ Comment: Record Keeping Yes No NA NE Are records kept and maintained as required by the permit? ■ ❑ ❑ ❑ Is all required information readily available, complete and current? ■ ❑ ❑ ❑ Are all records maintained for 3 years (lab. reg. required 5 years)? ■ ❑ ❑ ❑ Are analytical results consistent with data reported on DMRs? ■ ❑ ❑ ❑ Is the chain -of -custody complete? ■ ❑ ❑ ❑ Dates, times and location of sampling ■ Name of individual performing the sampling ■ Results of analysis and calibration ■ Dates of analysis ■ Name of person performing analyses ■ Transported COCs ■ Are DMRs complete: do they include all permit parameters? ■ ❑ ❑ ❑ Has the facility submitted its annual compliance report to users and DWQ? ❑ ❑ ■ ❑ (If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified ❑ ❑ ■ ❑ operator on each shift? Is the ORC visitation log available and current? ■ ❑ ❑ ❑ Is the ORC certified at grade equal to or higher than the facility classification? ■ ❑ ❑ ❑ Is the backup operator certified at one grade less or greater than the facility ■ ❑ ❑ ❑ classification? Is a copy of the current NPDES permit available on site? ■ ❑ ❑ ❑ Facility has copy of previous year's Annual Report on file for review? ❑ ❑ ■ ❑ Comment: Laboratory Yes No NA NE Are field parameters performed by certified personnel or laboratory? ■ ❑ ❑ ❑ Page# 4 DocuSign Envelope ID: 4222EOFO-4823-4585-A845-807DB965004C Permit: NCO072125 Owner -Facility: Tar River WTP Inspection Date: 04/17/2024 Inspection Type: Compliance Evaluation Laboratory Are all other parameters(excluding field parameters) performed by a certified lab? # Is the facility using a contract lab? # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)? Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees? Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees? Comment: Yes No NA NE ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? 0 ❑ ❑ ❑ Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable ❑ ❑ ❑ Solids, pH, DO, Sludge Judge, and other that are applicable? Comment: Standby Power Yes No NA NE Is automatically activated standby power available? 0 ❑ ❑ ❑ Is the generator tested by interrupting primary power source? ■ ❑ ❑ ❑ Is the generator tested under load? 0 ❑ ❑ ❑ Was generator tested & operational during the inspection? ❑ ❑ ❑ Do the generator(s) have adequate capacity to operate the entire wastewater site? 0 ❑ ❑ ❑ Is there an emergency agreement with a fuel vendor for extended run on back-up ❑ 0 ❑ ❑ power? Is the generator fuel level monitored? 0 ❑ ❑ ❑ Comment: No emergency agreement with a fuel vendor De -chlorination Yes No NA NE Type of system ? Liquid Is the feed ratio proportional to chlorine amount (1 to 1)? ❑ ❑ ❑ Is storage appropriate for cylinders? ❑ ❑ 0 ❑ # Is de -chlorination substance stored away from chlorine containers? 0 ❑ ❑ ❑ Comment: Are the tablets the proper size and type? ❑ ❑ 0 ❑ Are tablet de -chlorinators operational? ❑ ❑ 0 ❑ Page# 5 DocuSign Envelope ID: 4222EOFO-4823-4585-A845-807DB965004C Permit: NC0072125 Owner -Facility: Tar River WTP Inspection Date: 04/17/2024 Inspection Type: Compliance Evaluation De -chlorination Yes No NA NE Number of tubes in use? Comment: Flow Measurement - Effluent Yes No NA NE # Is flow meter used for reporting? 0 ❑ ❑ ❑ Is flow meter calibrated annually? 0 ❑ ❑ ❑ Is the flow meter operational? 0 ❑ ❑ ❑ (If units are separated) Does the chart recorder match the flow meter? ❑ ❑ 0 ❑ Comment: Effluent Pipe Yes No NA NE Is right of way to the outfall properly maintained? 0 ❑ ❑ ❑ Are the receiving water free of foam other than trace amounts and other debris? 0 ❑ ❑ ❑ If effluent (diffuser pipes are required) are they operating properly? ❑ ❑ 0 ❑ Comment: Effluent Sampling Yes No NA NE Is composite sampling flow proportional? ❑ ❑ 0 ❑ Is sample collected below all treatment units? 0 ❑ ❑ ❑ Is proper volume collected? ❑ ❑ ❑ ■ Is the tubing clean? ❑ ❑ 0 ❑ # Is proper temperature set for sample storage (kept at less than or equal to 6.0 ❑ ❑ ❑ ■ degrees Celsius)? Is the facility sampling performed as required by the permit (frequency, sampling type ❑ ❑ ❑ ■ representative)? Comment: Page# 6