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Home My WebLink AboutNC0021709_Compliance Evaluation Inspection_20180226 _ ROY COOPER Governor MICHAEL S.REGAN Secretary Water Resources LINDA CULPEPPER Environmental Quality Interim Director February 26, 2018 Mr.Tim Church, Water Resources Director PO Box 67 Jefferson, NC 28640 RECEIVED/DENR/D!,I/R Subject: Compliance Evaluation Inspection Report NPDES Permit NC0021709 MAR 0 7 2018 Town of Jefferson WWTP, Ashe County Water iiesourcea Permitting Section Dear Mr. Church: On February 20, 2018, Paul DiMatteo and Jim Gonsiewski of the Division of Water Resources ("Division"), Winston-Salem Regional Office conducted a Compliance Evaluation Inspection of the above referenced wastewater treatment system. Your presence and cooperation was greatly appreciated.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 February 1, 2018 and expires on March 31, 2022. A copy of the current permit was available for review. Permitted components include an automatic bar screen, oxidation ditch, secondary clarifiers,tertiary filters, chlorine disinfection, and dechlorination with final disposal to Naked Creek, Class C+waters in the New River Basin. 2. Facility Site Review The facility was as described in the permit, and is operated 7 days per week.The facility is permitted to discharge up to 0.6 million gallons per day(MGD) of treated wastewater;typical daily discharges are about 0.22 MGD. All components appeared to be working properly. An emergency generator was available that Mr. Church said could power the entire plant if necessary. 3. Operation and Maintenance Tim Church is the primary Operator in Responsible Charge (ORC), and Joel Walters is the backup- ORC. All operators are properly designated and hold adequate certifications. Mr. Church said he is typically on site 7 days per week. The facility was very clean at the time of the inspection and appeared to be well operated and managed. �"1e1othing Compares State of North Carolina I Environmental Quality 450 W Hanes Mill Road,Suite 300,Winston-Salem,North Carolina 27105 Phone 336-776-98001 FAX:336-776-9797 4. Flow Measurement - Effluent flow is measured using an ultrasonic device over a 90 degree V-notch sharp crested weir. A Chessel type flow recording device is used with a seven day circular chart. The flow meter's calibration was last checked by the Town of Jefferson on November 13, 2017. 5. Effluent/Receiving Waters The effluent is discharged to Naked Creek in the New River basin. A path to the outfall was well maintained and the effluent appeared clear with no visible solids or foam, and 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. DMRs 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 May, 2015 through December, 2017 showed no violations, and a comparison of submitted DMR data with bench records showed no errors or concerns. 8. Laboratory The facility analyzes pH,temperature,total residual chlorine, and dissolved oxygen under certification#5206. Other parameters are analyzed by Water Quality Labs, certification #544. Copies of all laboratory documentation are kept on site. Procedures for analyzing field parameters appeared acceptable. Chlorine analysis is performed using a Hach DR2500 spectrophotometer with the DPD method and using the flow thru cell. A five-point calibration is performed annually.The pH meter is calibrated daily with two buffers and checked with a third buffer.The DO meter is also calibrated daily. However, it was noted that the thermometer's calibration was last checked in April, 2011. Please note that laboratory certification procedures require that the thermometers used to report temperature be checked against an NIST-traceable thermometer yearly.A copy of the field analysis procedure is attached. During the inspection Mr. Church reported that both composite samplers were malfunctioning. The influent sampler had stopped working and the operators were compositing by combining 5 or 6 samples taken by hand throughout the day. The sampler had been sent to ISCO and was awaiting service. The effluent sampler was not receiving signal from the flow meter, so the flow proportional sampling was down. The sampler was set to sample hourly, and Mr. Church said that he hoped to have the necessary repairs completed in the coming days. 9. Sludge Handling Disposal Residuals are land applied under permit WQ0004166.The aerobic digester, belt press and sludge dryer appeared to be well maintained. Required Action Please ensure that the influent and effluent composite samplers are repaired as soon as possible and inform this office once the repairs have been completed. Future deviations from sampling procedures which may affect the accuracy of submitted data (for example, inability to take flow-proportional effluent samples)should be reported to this office as they occur.Additionally, please be sure to complete the thermometer calibration check as outlined in the attached procedure. 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, ti V. '--- �`� 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, Field Temperature TA CC: WQS Winston-Salem Regional Office- Enforcement File NPDES Compliance/Enforcement Unit- Enforcement File Central Files 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 E 2 I5 1 3 I NC0021709 111 12 1 18/02/20 117 18 1,.1 19 c 1 I 20 211IIIII IIIIIIIIIII IIIIIII I IIIIII IIIII ' IL III r6 Inspection Work Days Facility Self-Monitoring Evaluation Rating B1 QA Reserved 671 1 70 Li 71 LI 72 LJI N I 73 I I 174 79 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 15AM 18/02/20 18/02/01 Jefferson WWTP 1233 NC Hwy 16 S Exit Time/Date Permit Expiration Date 01 15PM 18/02/20 22/03/31 Jefferson NC 28640 Name(s)of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data Timothy Church/ORC/336-246-2165/ Name,Address of Responsible Official/Title/Phone and Fax Number Contacted Timothy Church,P0 Box 67 Jefferson NC 286400067//336-246-2165/ Yes Section C Areas Evaluated During Inspection(Check only those areas evaluated) El Permit II Flow Measurement • Operations&Maintenance II Records/Reports II Self-Monitoring Program • Sludge Handling Disposal • 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 Jim J Gonsiewski Division of Water Quality//336-776-9704i Paul DiMatteo WSRO WQ//336-776-9691/ thla, oti Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date Yj'Ae(114/1, �11 (-- 02-A1-61 r� EPA Form 3560-3(Rev 9-94)Previous editions are obsolete Page# 1 NPDES yr/mo/day Inspection Type 1 1 31 NC0021709 111 121 18/02/20 117 18 Lcj Section D•Summary of Finding/Comments(Attach additional sheets of narrative and checklists as necessary) Page# 2 Permit: NC0021709 Owner-Facility: Jefferson WWTP Inspection Date: 02/20/2018 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. Process control analysis includes settleability, pH, DO, microbial survey. Permit Yes No NA NE (If the present permit expires in 6 months or less). Has the permittee submitted a new 0 0 U 0 application? Is the facility as described in the permit? • 0 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: A new permit was issued effective February 1, 2018, and included a four year Compliance Schedule for new Total Copper and Total Zinc limits. Record Keeping Yes No NA NE Are records kept and maintained as required by the permit? U ❑ ❑ 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 Are analytical results consistent with data reported on DMRs? • 0 0 0 Is the chain-of-custody complete? • 0 0 0 Dates,times and location of sampling • Name of individual performing the sampling II Results of analysis and calibration • Dates of analysis • Name of person performing analyses • Transported COCs • Are DMRs complete do they include all permit parameters? • ❑ 0 ❑ Has the facility submitted its annual compliance report to users and DWQ? • 0 ❑ 0 (If the facility is=or>5 MGD permitted flow)Do they operate 24/7 with a certified operator 0 ❑ • 0 on each shift'? Is the ORC visitation log available and current? • ❑ 0 0 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'? • ❑ ❑ ❑ Page# 3 Permit- NC0021709 Owner-Facility. Jefferson WWTP Inspection Date: 02/20/2018 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: DMR data was compared for 5/2016 and 5/2017. Flow Measurement-Effluent Yes No NA NE #Is flow meter used for reporting? U 0 0 0 Is flow meter calibrated annually? • 0 0 0 Is the flow meter operational? • 0 0 0 (If units are separated)Does the chart recorder match the flow meter? 0 0 0 • Comment. Flow is measured using a 90 degree v-notch weir at the effluent,with an ultrasonic transmitter. Mr. Church calibrates the meter yearly The meter was last calibrated on 11/13/2017. Aerobic Digester Yes No NA NE Is the capacity adequate? • 0 0 0 Is the mixing adequate? • 0 0 0 Is the site free of excessive foaming in the tank? • 0 0 0 #Is the odor acceptable? • 0 0 0 #Is tankage available for properly waste sludge? • 0 0 0 Comment: Bar Screens Yes No NA NE Type of bar screen a.Manual 0 b Mechanical • Are the bars adequately screening debris? • 0 0 0 Is the screen free of excessive debris? • 0 0 0 Is disposal of screening in compliance? • 0 0 0 Is the unit in good condition? • 0 0 0 Comment. Oxidation Ditches Yes No NA NE Are the aerators operational? • 0 0 0 Are the aerators free of excessive solids build up? • 0 0 0 #Is the foam the proper color for the treatment process? • 0 0 0 Page# 4 Owner-Facility: Permit: NC0021709 Jefferson WWTP Inspection Date 02/20/2018 Inspection Type• Compliance Evaluation Oxidation Ditches Yes No NA NE Does the foam cover less than 25%of the basin's surface? • 0 0 0 Is the DO level acceptable? 0 0 0 II Are settleometer results acceptable(>30 minutes)? 0 0 0 • Is the DO level acceptable?(1.0 to 3 0 mg/I) 0 0 0 II Are settelometer results acceptable?(400 to 800 ml/I in 30 minutes) 0 0 0 • Comment: Secondary Clarifier Yes No NA NE Is the clarifier free of black and odorous wastewater? • 0 0 0 Is the site free of excessive buildup of solids in center well of circular clarifier? • 0 0 ❑ Are weirs level? • 0 0 0 Is the site free of weir blockage? • 0 0 0 Is the site free of evidence of short-circuiting? • ❑ ❑ 0 Is scum removal adequate? • ❑ 0 0 Is the site free of excessive floating sludge? • 0 0 0 Is the drive unit operational? • 0 0 0 Is the return rate acceptable(low turbulence)? • 0 0 0 Is the overflow clear of excessive solids/pin floc? • 0 ❑ ❑ Is the sludge blanket level acceptable?(Approximately'A of the sidewall depth) • 0 0 0 Comment Filtration (High Rate Tertiary) Yes No NA NE Type of operation Down flow Is the filter media present? • 0 ❑ 0 Is the filter surface free of clogging? • ❑ 0 0 Is the filter free of growth? • 0 0 ❑ Is the air scour operational? • 0 ❑ 0 Is the scouring acceptable? • ❑ ❑ 0 Is the clear well free of excessive solids and filter media? • 0 0 0 Comment. Disinfection-Gas Yes No NA NE Are cylinders secured adequately? • ❑ ❑ ❑ Page# 5 Permit: NC0021709 Owner-Facility: Jefferson WWTP Inspection Date: 02/20/2018 Inspection Type Compliance Evaluation Disinfection-Gas Yes No NA NE Are cylinders protected from direct sunlight? • 0 0 0 Is there adequate reserve supply of disinfectant'? • 0 0 0 Is the level of chlorine residual acceptable? • 0 0 0 Is the contact chamber free of growth,or sludge buildup? • 0 0 0 Is there chlorine residual prior to de-chlorination? 0 0 0 III Does the Stationary Source have more than 2500 lbs of Chlorine(CAS No.7782-50-5)? 0 0 • 0 If yes,then is there a Risk Management Plan on site/ 0 0 • 0 If yes,then what is the EPA twelve digit ID Number?(1000- - ) If yes,then when was the RMP last updated? Comment: Mr. Church said they store 3- 100 lb Chlorine pas cylinders on site. De-chlorination Yes No NA NE Type of system? Liquid Is the feed ratio proportional to chlorine amount(1 to 1)? • 0 0 0 Is storage appropriate for cylinders? • 0 0 0 #Is de-chlorination substance stored away from chlorine containers? • 0 0 0 Are the tablets the proper size and type? 0 0 • 0 Comment: Stored in separate sheds. Are tablet de-chlorinators operational? 0 0 II 0 Number of tubes in use? Comment: Sodium thiosulfate dechlorination. Pumps-RAS-WAS Yes No NA NE Are pumps in place? • 0 0 0 Are pumps operational? • 0 0 0 Are there adequate spare parts and supplies on site? • 0 0 0 Comment: Standby Power Yes No NA NE Is automatically activated standby power available? • 0 0 0 Is the generator tested by interrupting primary power source? • 0 0 0 Is the generator tested under load? • 0 0 0 Was generator tested&operational during the inspection? ❑ ❑ 0 • Page# 6 Permit: NC0021709 Owner-Facility: Jefferson WWTP Inspection Date: 02/20/2018 Inspection Type: Compliance Evaluation Standby Power Yes No NA NE 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 power? • ❑ 0 0 Is the generator fuel level monitored? • ❑ 0 0 Comment: Mr. Church said that the generator is automatically tested 1x/week and receives regular • preventative maintenance. He also said that the generator was capable of powering the entire plant. Laboratory Yes No NA NE Are field parameters performed by certified personnel or laboratory? • ❑ 0 ❑ Are all other parameters(excluding field parameters)performed by a certified lab? • ❑ ❑ 0 #Is the facility using a contract lab? ❑ • ❑ 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 III Incubator(BOD)set to 20.0 degrees Celsius+/-1 0 degrees? ❑ 0 0 • Comment. Non-field parameters are analyzed by Water Quality Labs. Field parameters are measured in house. Calibration records for pH, DO and chlorine were adequate; however, records indicated that the thermometer used for temperature reporting was last calibrated in 4/2011. I reminded Mr. Church that thermometers used for temperature reporting must be checked against an NIST traceable thermometer at least every 12 months. Influent Sampling Yes No NA NE #Is composite sampling flow proportional? ❑ I 0 0 Is sample collected above side streams? • 0 0 ❑ Is proper volume collected? • 0 0 0 Is the tubing clean? • ❑ 0 0 #Is proper temperature set for sample storage(kept at less than or equal to 6 0 degrees • ❑ 0 0 Celsius)? Is sampling performed according to the permit? • ❑ 0 ❑ Comment Samples are collected at the head of the oxidation ditch. Mr. Church said that his automatic influent sampler has been broken for the past month or so.They received and acknowledged an estimate from ISCO to perform repairs on 2/14/2018. In the meantime they have been compositing manually by taking 5-6 grab samples per day. Effluent Samplinq Yes No NA NE Is composite sampling flow proportional? ❑ 0 ❑ • Is sample collected below all treatment units? • ❑ 0 ❑ Page# 7 Permit NC0021709 Owner-Facility. Jefferson WWTP Inspection Date: 02/20/2018 Inspection Type: Compliance Evaluation Effluent Sampling Yes No NA NE Is proper volume collected? • 0 0 0 Is the tubing clean? • 0 0 0 #Is proper temperature set for sample storage(kept at less than or equal to 6 0 degrees • 0 0 0 Celsius)? Is the facility sampling performed as required by the permit(frequency,sampling type • 0 0 0 representative)? Comment: Mr. Church said that the signal wire running from the ultrasonic flow meter to the effluent sampler recently went bad, so the sampler was not receiving flow signals from the flow meter. He said they were grabbing a sample every hour and hoped to pet the wire fixed within the coming days. 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: Effluent Pipe Yes No NA NE Is right of way to the outfall properly maintained? • 0 0 0 Are the receiving water free of foam other than trace amounts and other debris? • 0 0 0 If effluent (diffuser pipes are required) are they operating properly? 0 0 • 0 Comment. Page# 8