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Home My WebLink AboutNC0026271_Regional Office Historical File Pre 2018 (31)J WaterResources ENVIRONMENTAL QUALITY September 20, 2017 Mr. David Odom, Town Manager Town of Taylorsville 344 Minnigan Lane Taylorsville, NC 28681 � ' �RO'Y COOPER I; Governor MICHAEL S. REGAN Secretary S. JAY ZIMMERMAN Director Subject: Compliance Evaluation Inspection Taylorsville WWTP NPDES Permit No. NCO026271 Alexander County Dear Mr. Odom: Enclosed is a copy of the Compliance Evaluation Inspection for the inspection conducted at the subject facility on September 19, 2017, by Ori Tuvia, Ed Watson and Ousmane Sidibe..Brian Eades cooperation during the site visit was much appreciated. Please advise the staff involved with this. NPDES Permit by forwarding a copy of the enclosed report. The report should be self-explanatory; however, should you have any questions concerning this report, please do not hesitate to contact Ori Tuvia at (704) 235-2190, or at ori.tuvia@ncdenr.gov. Cc: NPDES Unit MRO Files Sincerely, Ori Tuvia, Environmental Engineer Mooresville Regional Office Division of Water Resources, DEQ Mooresville Regional Office Location: 610 East Center Ave., Suite 301 Mooresville, NC 28115 Phone: (704) 663-16991 Fax: (704) 663.60401 Customer Service:1-877-623-6748 United States Environmental Protection Agency Form Approved.. EPA Washington, D.C. 20460 OMB No. 2040-0057 Water Compliance Inspection Report Approval expires a-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 15 1 3 I NCO026271 I11 12 17/09/19 17 18 ICI 19 1 c I 20 LI _1 16 211 I I I 1 11I 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I 1. I 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I 1 I 1 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA Reserved 67 1.0 70 71 IN 72 LI 73 174 75 1 1 1 1 1 80 Section B: FacilityData 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) . 09:25AM 17/09/19 15/07/01 Taylorsville WWTP Minnigan Ln Exit Time/Date Permit Expiration Date Taylorsville NC 28681 . 11:15AM 17/09/19 20/03/31 Name(s) of Onsite Representative(s)Ttles(s)/Phone and Fax Number(s) Other Facility Data Steve Brian Eades/ORC/828-632-5280/ Name, Address of Responsible Official/Title/Phone and Fax Number Contacted David Matthew Robinette,204 Main Ave Dr Taylorsville NC 28681/Public Works No Director/828-632-2218/ Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit Flow Measurement Operations & Maintenance Records/Reports 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 Ousmane Sidibe Department Environmental Assistance a Edward Watson MRO GW/// �� B Od A Tuvia MRO W0//704-663-1699/ Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date W. Corey Basinger MRO WQ//704-235-2194/ EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. AA�p� t �i�/ • s Page# 1 NPDES yr/mo/day Inspection Type 1 31 NC0026271 I11 12 17/09/19 17 18 i c i Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) :, Page# 2 , i Permit: NCO026271 Owner -Facility: TaylorsvilleWWiP Inspection Date: 09/19/2017 Inspection Type: Compliance Evaluation Permit (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: The current permit expires on March 31, 2020. Record Keeping 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? Yes No NA NE ❑ ❑ E ❑ ❑ ■ ❑ ❑ M. ❑ ❑ ❑ ❑ ❑ ❑ Yes No NA NE "❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ .❑ ❑ ❑ ❑ ❑ ❑ ❑. ❑ ❑; ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ ,Is the ORC certified at grade equal to or higher than the facility classification? M ❑ ❑ ❑ Is the backup operator certified at one grade less or greater than the facility classification? 0 ❑ ❑ ❑ Is a copy of the current NPDES permit, available on. site? M ❑ ❑ ❑ Facility has copy of previous year's Annual Report on file for review? M ❑ ❑ ❑ Comment: The permittee's records were organized and well maintained and records requested during the inspection were readily available. DMRs COCs. calibration logs. ORC visitation logs and process control data were reviewed for the period September 2016 through July1017. Laboratory Yes No - NA NE Page# 3 0 I Permit: NCO026271 Owner - Facility: Taylorsville VWVrP Inspection Date: 09/19/2017 Inspection Type: Compliance Evaluation. 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? E ❑ ❑ ❑ # Is the facility using a contract lab? M• ❑ ❑ ❑ # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees 0 ❑ ❑ ❑ Celsius)? . Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees? ❑ ❑ M ❑ Incubator (BOD) set to 20.0 degrees Celsius +/-1.0 degrees? ❑ ❑ M ❑ Comment: On -site analyses (pH and TRC) are performed under field laboratory certification #5062 (Town of Taylorsville). Water Tech Labs, Inc. (Certification #501performs all remaining permit -required effluent analyses The field instrumentation used on site appeared to be properly calibrated and documented: daily calibration/verification data is entered in the ORC log book. The field instrumentation is calibrated annually by Water Tech labs. Inc. Influent Sampling Yes No NA NE # Is composite sampling flow proportional? N ❑ ❑ ❑ Is sample collected above side streams? E ❑ ❑ ❑ Is proper volume collected? E - ❑. ❑ Is the tubing clean? 0 ❑ ❑ 11. # Is proper temperature set for sample storage (kept at less than or equal to 6.6 degrees 0 ❑ ❑ ❑ Celsius)? Is sampling performed according to the permit? 0 ❑ El ❑ Comment: The influent composite sampler was collecting 170 mL per aliquot at the time of the inspection. Effluent Sampling Yes No NA NE Is composite sampling flow proportional? ❑ ❑ .❑ Is sample collected below all treatment units? ❑ ❑ ❑ Is proper.volume collected? 0 ❑ ❑ ❑ Is the tubing. clean? ❑ ❑ # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees N ❑ ❑ ❑ Celsius)? Is the facility sampling performed as required by the permit (frequency, sampling type 0 ❑ ❑ ❑ representative)? Comment: he efluent composite sampler was collecting 155 mL per aliquot when tested: Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? 0 ❑ ❑ ❑ Page# 4 1 Permit: NCO026271 Owner -Facility: TaylorsvilleWWrP Inspection Date: 09/19/2017 Inspection Type: Compliance Evaluation Operations & Maintenance Yes No NA NE Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable M ❑ ❑ ❑ Solids, pH, DO, Sludge Judge, and other that are applicable? Comment: �At the time of the inspection the facility appeared to be properly operated and well maintained. The facility is equipped with a SCADA'system and dissolved oxygen and DH PLC controllers are installed in the aeration basins for process control. Pump Station —Influent Yes No NA NE Is the pump wet well free of bypass lines or structures? El ❑. ❑ Is the wet well free of excessive grease? 0 ❑ ❑ ❑ Are all pumps present? ❑ ❑ ❑ Are all pumps operable? 0 ❑ ❑ ❑ : Are float controls operable? ❑ ❑ ❑ Is SCADA telemetry available and operational? 0 ❑ ❑ ❑ Is audible and visual alarm available and operational? 0 ❑ ❑ ❑ Comment: Bar Screens Yes No NA NE Type of bar screen i a.Manual ❑ . b.Mechanical Are the bars adequately screening debris? ❑ El ❑ Is the screen free of excessive debris? ❑ ❑ ❑ Is disposal of screening in compliance? 0 ❑ ❑ ❑ Is the unit in good condition? ❑ ❑ ❑ Comment: Grit Removal Yes No NA NE i Type of grit removal a.Manual ❑ b.Mechanical Is the grit free of excessive organic matter?. M ❑ ❑ ❑ Is the grit free. of excessive odor? ❑ ❑" ❑ # Is disposal of grit in compliance? 0 ❑ ❑ ❑ Comment: _ Page# 5 Permit: NCO026271 - Owner - Facility: Taylorsville WWTP Inspection Date: 09/19/2017 Inspection Type: Compliance Evaluation Grit Removal Yes No NA NE Flow Measurement - Influent Yes. No NA NE # Is flow meter used for reporting? ❑ . ❑ ❑ 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: The flow meter is calibrated/verified once per year. Aeration Basins ' Yes No NA NE Mode of operation I Ext. Air Type of aeration system Diffused Is the basin free of deed spots?. E❑ ❑ ❑ Are surface aerators,and mixers operational? E ❑. ❑ ❑ Are the diffusers operational? E ❑ ❑ ❑ Is the foam the proper color for the treatment process? ❑ ❑ ❑ Does the foam cover less than 25% of the basin's surface? E ❑ ❑ - ❑ Is the DO level acceptable? E ❑ ❑ ❑ Is the DO level acceptable?(1.0 to 3.0 mg/I) 0 ❑ ❑ ❑ Comment: Secondary Clarifier Yes No. NA NE Is the clarifier free of black and odorous wastewater? ❑ ❑ ❑ Is the site free of excessive buildup of solids in center well of circular clarifier? 0 ❑ ❑ ❑ Are weirs level? N ❑ ❑ ❑ Is the site free of weir blockage? 0 ❑ ❑ ❑ Is the site free of evidence of short-circuiting? ❑ ❑ ❑ Is scum removal adequate? 0 ❑ ❑ ❑ Is the site free of excessive floating sludge? 0 ❑ ❑ ❑ .Is the drive unit operational? N ❑ 0 ❑ Is the return rate acceptable (low turbulence)? 0 ❑ ❑ ❑ Is the overflow clear of excessive solids/pin floc? 0 ❑ ❑ ❑ . Is the sludge blanketlevel acceptable? (Approximately % of the sidewall depth) 0 ❑ ❑ ❑ Comment: Page# 6 Permit: NCO026271 Owner - Facility: Taylorsvllle vvwrP Inspection Date: 09/19/2017 Inspection Type: Compliance Evaluation Disinfection -Gas Yes No NA NE Are cylinders secured adequately? 0 ❑ ❑ ❑ Are cylinders protected from direct sunlight? N ❑ ❑ ❑ Is there adequate reserve supply of disinfectant? N ❑ ❑ 0 Is the level of chlorine residual acceptable? ❑ ❑ ❑ Is the contact chamber free of growth, or sludge buildup? N ❑ ❑ ❑ Is there chlorine residual prior to de -chlorination? . N ❑ ❑ ❑ Does the Stationary Source have more than 2500 Ibs of Chlorine (CAS No. 7782-50-5)? ❑ ❑ ❑ If yes, then is there a Risk Management Plan on site? ❑ ❑ 0 ❑ If yes, then what is the EPA twelve digit ID Number? (1000- If yes, then when was the RMP last updated? Comment: The chlorination and dechlorination systems are serviced by Piedmont Chlorinator Sales and Service. Inc De -chlorination Type of system ? Is the feed ratio proportional to chlorine amount (1 to 1)? Is storage appropriate for cylinders? # Is de -chlorination substance stored away from chlorine containers? Are the tablets the proper size and type? Comment: ' Sulfer dioxide is used for disinfection Are tablet de -chlorinators operational? Number of tubes in use? Comment: Aerobic Digester Is the capacity adequate? Is the mixing adequate? Is the site free of excessive foaming in the tank? # Is the odor acceptable? r # Is tankage available for properly waste sludge? Yes. No NA NE Gas ❑ ❑ ❑ ■.❑'❑:❑ ❑ ❑ ❑ ❑ ❑ ❑ Yes No NA NE ■ ❑ ❑- ❑ ❑ ❑ ❑-N ❑ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ Comment: Residuals awland applied by Southern Soil under permit W00006906. Anew digester, with a 500,000 gallons capacity is being constructed. Page# 7 Permit: NC0026271 Owner -Facility: Taylorsville WWTP -Inspection Date: 09/19/2017 Inspection Type: Compliance Evaluation Chemical Feed Yes No NA NE Is containment adequate? M ❑ ❑ ❑ Is storage adequate? E ❑ ❑ ❑ Are backup pumps available? ❑ ❑ ❑ M. Is the site free of excessive leaking? ❑ ❑ ❑ Comment: Flow Measurement - Effluent Yes No NA NE # Is flow meterused for reporting? ❑ ❑ ❑ Is flow meter calibrated annually? M ❑ ❑ 0 Is the flow meter operational? 0 ❑ ❑ ❑ (If units are separated) Does the chart recorder match the flow meter? 0 ❑ ❑ ❑ Comment: The flow meter is calibrated/verified once peryear. Standby Power Yes No' NA NE Is automatically activated standby power available? N ❑ ❑ ❑ Is the generator tested by interrupting primary power source? ❑ ❑ ❑ Is the generator tested under load? M. ❑ ❑ ❑ Was generator tested & operational during the inspection? ❑ ❑ ❑ Do the generator(s). have adequate capacity to operate the entire wastewater site? N ❑ ❑ Is there an emergency agreement with a fuel vendor for extended run on back-up power? E ❑ ,❑ El Is the generator fuel level monitored? ❑ ❑ ❑ Comment: The generator powers only the essentials unit for the operation of the UWVIP should power be interrupted. The -generator is auto cycled once per week and placed under load a few times per year. The generator is serviced annually and was last serviced by Carolina CAT. Page# 8