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Home My WebLink AboutNC0046302_Compliance Evaluation Inspection_20180730 eFQ , at,„ ROY COOPER NORTH CAROLINA Governor Environmental Quality MICHAEL S.REGAN Secretary LINDA CULPEPPER ��C�)`/�®I®��®�� Interim Director July 30, 2018 AUG 0 7 2098 Ms. Leesa Hopper,Town Manager erm tWater ing Resources on permitting Town of Mayodan 210 W. Main Street Mayodan, NC 27027-2019 Subject: Compliance Evaluation Inspection Report NPDES Permit#NC0046302 Mayodan Water Treatment Plant, Rockingham County Dear Ms. Hopper: On July 9, 2018, Paul DiMatteo of the Division of Water Resources(Division),Winston-Salem Regional Office, conducted a Compliance Evaluation Inspection of the above referenced wastewater treatment system. Michael Amos, Operator in Responsible Charge (ORC), and William Amos, backup-ORC,were present for the inspection.This type of inspection consists of two basic parts: an on-site inspection of the facility and a review of facility files and self- monitoring data.Observations from each area of the inspection are summarized below. Site Review 1. Permit The current permit became effective on January 1, 2018 and expires on November 30, 2022. Permitted components include two alternatively utilized settling lagoons and tablet dechlorination with final disposal to an unnamed tributary to the Mayo River,class WS-IV, CA waters in the Roanoke River Basin. • 2. Facility Site Review The facility was as described in the permit.The operators said that the second lagoon has been offline since 2014.There was some vegetative growth and a trickle of water was able to reach the lagoon.The operators said that the vegetation would be cleared before being put back into use and that they would work on better sealing the dive'rter to reduce the amount of water getting through it.The water in the lagoon that was in use appeared very clear and small fish could be observed in it. 3. Operation and Maintenance The plant is operated as required.All operators are properly designated and hold adequate certifications. The facility appeared to be well operated and managed. D_EQ //){(j NORTH CAROLINA, ��//f IKoaLtmN110161Hlbtllamtd Mea d/ North Carolina Department of Environmental Quality I Division of Water Resources Winston-Salem Regional Office 1450 Hanes Mill Road,Suite 300 I Winston-Salem,North Carolina 27103 336.776.9800 i 4. Flow Measurement Effluent flow is measured instantaneously at the outfall using a bucket and stopwatch.There was no discharge at the time of inspection. 5. Effluent/Receiving Waters There was no discharge at the time of inspection.A path to the outfall was available and there was no visible impact to the receiving stream. Documentation Review 6. Records/Reports Discharge Monitoring Reports (DMRs) and lab data are maintained according to the permit. DMR5 include all permit parameters. Copies of DMRs, operator visitation logs, daily operation sheets, maintenance reports, lab reports and Chain-of-Custody forms were available for review during the inspection. 7. Self-Monitoring Program A review of DMRs from August 2015 through June 2018 showed no actioned violations, and a comparison of submitted data with bench sheets revealed no errors or concerns. 8. Laboratory The facility analyzes field parameters at its on-site laboratory under certification#5289. Non-field analysis is performed by Environment 1, certification#10, and whole effluent toxicity is analyzed by Environmental Testing Solutions,certification#600. Copies of all laboratory documentation were readily available. Procedures for analyzing field parameters including required calibrations appeared acceptable. We appreciate the efforts made to effectively operate and maintain this treatment facility. If you should have any questions, please do not hesitate to contact Paul DiMatteo at(336)776-9691 or our office at(336)776-9800. Sincerely, Atut: 17" /4,40- Sherri V. Knight, P.E., Regional Supervisor Water Quality Regional Operations Section Winston-Salem Regional Office Division of Water Resources, NCDEQ Enclosures—Inspection Report and Summary CC: WQS Winston-Salem Regional Office-Enforcement File NPDES Compliance/Enforcement Unit-Enforcement File Central Files D_EQ,#) NORTH CAROLINA North Carolina Department of Environmental Quality 1 Division of Water Resources Winston-Salem Regional Office 1450 Hanes Mill Road,Suite 300 I Winston-Salem,North Carolina 27103 336.776.9800 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 Ii, I 2 IFI 3 I NC0.46302 111 12 I 18/07/09 117 18 I I 19 Ls I 201 I 21111111 11111111111111111111111111111111111 1 r6 Inspection Work Days Facility Self-Monitoring Evaluation Rating B1 QA Reserved 671 1 70 I I 71 LJ 72 L J I . I 731 I I74 751 1 1 1 1 1 1 180 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) 10 00AM 18/07/09 18/01/01 Mayodan WTP 500 E Roach St Exit Time/Date Permit Expiration Date Mayodan NC 27027 11 45AM 18/07/09 22/11/30 Name(s)of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data /// Michael R Amos/ORC/336-427-3339/ Name,Address of Responsible Official/Title/Phone and Fax Number Contacted Michael R Amos,210 W Main St Mayodan NC 270272019/ORC/336-427-3339/3364277592 No Section C Areas Evaluated During Inspection(Check only those areas evaluated) Permit • Flow Measurement El Operations&Maintenance IN Records/Reports II Self-Monitoring Program • Facility Site Review • Effluent/Receiving Waters • 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 Paul DiMatteo WSRO WQ//336-776-9691/ Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date ),44/A4,,t, V bl -:(1/d-- 7/3 a /t EPA Form 3560-3(Rev 9-94)Previous editions are obsolete Page# 1 3 NPDES yr/mo/day Inspection Type 1 31 NC0046302 Il 1 121 18/07/09 117 18 (; Section DY Summary of Finding/Comments(Attach additional sheets of narrative and checklists as necessary) • Page# 2 . Permit:.NC0046302 Owner-Facility: Mayodan WTP Inspection Date: 07/09/2018 Inspection Type: Compliance Evaluation Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? • 0 0 0 Does the facility analyze process control parameters,for ex: MLSS, MCRT, Settleable 0 0 • 0 Solids, pH, DO, Sludge Judge,and other that are applicable? Comment: Permit Yes No NA NE (If the present permit expires in 6 months or less). Has the permittee submitted a new 0 0 II 0 application? Is the facility as described in the permit? • 0 0 ❑ #Are there any special conditions for the permit? 0 • 0 0 Is access to the plant site restricted to the general public? • 0 0 0 Is the inspector granted access to all areas for inspection? • 0 0 0 Comment. Record Keeping Yes No NA NE Are records kept and maintained as required by the permit? • 0 0 0 Is all required information readily available,complete and current? • 0 0 0 Are all records maintained for 3 years(lab. reg. required 5 years)? • ❑ 0 0 Are analytical results consistent with data reported on DMRs? • 0 0 0 v Is the chain-of-custody complete? • 0 0 ❑ Dates,times and location of sampling III Name of individual performing the sampling • Results of analysis and calibration • Dates of analysis Name of person performing analyses II - Transported COCs U Are DMRs complete: do they include all permit parameters? • ❑ 0 ❑ Has the facility submitted its annual compliance report to users and DWQ? 0 0 • 0 (If the facility is=or>5 MGD permitted flow) Do they operate 24/7 with a certified operator 0 0 • 0 on each shift? Is the ORC visitation log available and current? • 0 0 0 Is the ORC certified at grade equal to or higher than the facility classification? • 0 0 0 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? • 0 0 0 Page# 3 Permit: NC0046302 Owner-Facility: Mayodan WTP Inspection Date: 07/09/2018 Inspection Type: Compliance Evaluation Record Keeping Yes No NA NE Facility has copy of previous year's Annual Report on file for review? 0 0 • 0 Comment: Lagoons Yes No NA NE Type of lagoons'? Facultative #Number of lagoons in operation at time of visit? 1 Are lagoons operated in? Parallel #Is a re-circulation line present? ❑ • 0 0 Is lagoon free of excessive floating materials? • 0 0 ❑ #Are baffles between ponds or effluent baffles adjustable? • 0 0 ❑ Are dike slopes clear of woody vegetation? • 0 0 ❑ Are weeds controlled around the edge of the lagoon? • 0 ❑ 0 Are dikes free of seepage? • ❑ 0 ❑ Are dikes free of erosion'? • 0 0 0 Are dikes free of burrowing animals? • 0 0 0 #Has the sludge blanket in the lagoon(s) been measured periodically in multiple ❑ ❑ • 0 locations'? , #If excessive algae is present, has barley straw been used to help control the growth? ❑ 0 • 0 Is the lagoon surface free of weeds? • ❑ 0 0 Is the lagoon free of short circuiting? • ❑ 0 ❑ Comment: Current lagoon has been in operation since—2014. Other lagoon is mostly closed off, though there is a trickle petting through the separator. Other lagoon is heavily vegetated, but the operators said that would be cleared before being put back in use.Water appeared very clear in the current lagoon and small fish were observed swimming in it.A retaining baffle at the effluent allows a trickle through and has an overflow at which point the lagoons will be switched. Roughly 1.5 feet of freeboard left. Effluent Sampling Yes No NA NE Is composite sampling flow proportional? 0 0 IN ❑ Is sample collected below all treatment units? • 0 ❑ 0 Is proper volume collected? • ❑ 0 0 Is the tubing clean? • 0 ❑ ❑ #Is proper temperature set for sample storage(kept at less than or equal to 6.0 degrees ❑ 0 ❑ U Celsius)? Is the facility sampling performed as required by the permit(frequency,sampling type • ❑ ❑ ❑ representative)? Page# 4 Permit: NC0046302 Owner-Facility: Mayodan WTP Inspection Date: 07/09/2018 Inspection Type: Compliance Evaluation Effluent Sampling Yes No NA NE Comment: Samples are taken at the outfall during discharge events and at the dechlorination chamber during smaller events. Upstream/ Downstream Sampling Yes No NA NE Is the facility sampling performed as required by the permit(frequency, sampling type, and • 0 0 0 sampling location)? Comment: Operators said the stream is fairly dry but they do try to find a flowing portion/pool when doing upstream sampling. Laboratory Yes No NA NE Are field parameters performed by certified personnel or laboratory? • 0 0 0 Are all other parameters(excluding field parameters) performed by a certified lab? • 0 0 ❑ #Is the facility using a contract lab? 0 • 0 0 #Is proper temperature set for sample storage(kept at less than or equal to 6.0 degrees 0 0 0 Celsius)' Incubator(Fecal Coliform) set to 44.5 degrees Celsius+/-0.2 degrees? 0 0 0 • Incubator(BOD) set to 20.0 degrees Celsius+/-1 0 degrees'? ❑ 0 0 III Comment: Field parameters in house-certification#5289. Non-field parameters by Environment 1 - certification# 10. Effluent Pipe Yes No NA NE Is right of way to the outfall properly maintained? • ❑ ❑ ❑ Are the receiving water free of foam other than trace amounts and other debris? • 0 0 ❑ If effluent (diffuser pipes are required) are they operating properly? 0 0 • 0 Comment: There's two outfalls-one for each lagoon. Both were accessible during the inspection, albeit a little steep. Operators said they were accessible from another direction as well. Flow Measurement- Effluent Yes No NA NE #Is flow meter used for reporting? ❑ • 0 0 Is flow meter calibrated annually? ❑ ❑ • 0 Is the flow meter operational'? ❑ 0 I 0 (If units are separated) Does the chart recorder match the flow meter? 0 0 • 0 Comment: Flow is measured at the effluent using a bucket and stopwatch. No or minimal flow was observed during the inspection. Page# 5