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Home My WebLink AboutNC0020184_Compliance Evaluation Inspection_20170526Water Resources ENVE3iONMENTAI. QUAUT`4" May 26, 2017 Ms. Stephanie Scheringer, Division Manager Two Rivers Utilities P.O. Box 1748 Gastonia, NC 28053 Dear Ms. Scheringer: ROY COOPER Governor MICHAEL S. REGAN Secretary S. JAY ZIMMERMAN Director Subject: Compliance Evaluation Inspection Long Creek WWTP NPDES Permit No, NCO020184 Gaston County Enclosed is a copy of the Compliance Evaluation Inspection for the inspection conducted at the subject facility on May 24, 2017; by Ori Tuvia and Maria Schutte. David Shellenbarger's, Doug Barker's, and Charlie Graham's 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., ov. 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) 663.60441 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 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 15 1 3 1 NCO020184 111 121 17/05/24 117 181,,l 19I s I 201 I 211111.1) 11111111 1 11 111 1111 1 111111 11111111111 I66 I Inspection Work Days Facility Self-Monitoring Evaluation Rating B1 QA --Reserved- Reserved 67 1.0 7014 1 71 1 �, 1 72 1 N 1 731 1 174 75III J_U80 67 L_J L-1 I I I 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) 09:30AM 17/05/24 17/04/01 Long Creek WWTP 3000 Long Creek Disposal Plant Rd Exit Time/Date Permit Expiration Date Dallas NC 28034 01:15PM 17/05/24 20/01/31 Name(s) of Onsite Representative(s)/Tities(s)/Phone and Fax Number(s) Other Facility Data 1// Douglas Edward Barker/ORC/704-9224086/ Name, Address of Responsible OfficiaUTitle/Phone and Fax Number Contacted Larry Wayne Cummings,PO Box 1748 Gastonia NC 280531748/1704-866-6991/7048667719 No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit N Flow Measurement Operations & Maintenance Records/Reports Self-Monitoring Program N Sludge Handling Disposal Facility Site Review Effluent/Reoeiving 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/Offioe/Phons and Fax Numbers Date Ori A Tuvia MRO WQ11704-663-1699/ David G Schlobohm Non Discharge Permitting UniU/919-807- Signature of Management Q A Reviewer Agency/Offioe/Phone and Fax Numbers Date y Andrew Pitne MRO WQ004-663-1699 Ext.21 EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page# NPDES yr/mo/day Inspection Type NCO020184 �11 121 17/05/24 17 18 ICI Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Page# Permit: NCO020184 Owner -Facility: Long Creek WWTP Inspection Date: 05/24/2017 Inspection Type: Compliance Evaluation Yes No NA NE Are records kept and maintained as required by the permit? M ❑ Permit Yes No NA NE (If the present permit expires in 6 months or less). Has the permittee submitted a new . ❑ ❑ ❑ application? M ❑ ❑ ❑ Is the facility as described in the permit? M ❑ ❑ ❑ # Are there any special conditions for the permit? ❑ 0 ❑ ❑ Is access to the plant site restricted to the general public? ■ ❑ ❑ ❑ Is the inspector granted access to all areas for inspection? 0 ❑ ❑ ❑ Comment: The subject permit expires on 1/31/2020. Record Keeping Yes No NA NE Are records kept and maintained as required by the permit? M ❑ ❑ ❑ Is all required information readily available, complete and current? 0 ❑ ❑ ❑ Are all records maintained for 3 years (lab. reg. required 5 years)? M ❑ ❑ ❑ Are analytical results consistent with data reported on DMRs? I ❑ ❑ ❑. Is the chain -of -custody complete? 0 ❑ ❑ ❑ Dates, times and location of sampling COCs, visitation logs, calibration logs and bench sheets were reviewed for the period June 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? 0 ❑ ❑ ❑ Has the facility submitted its annual compliance report to users and DWQ? ❑ ❑ ❑ M (If the facility is = or > 5 MGD permitted flow) Do they operate 2417 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? 0 ❑ ❑ ❑ Is a copy of the current NPDES permit available on site? 0 ❑ ❑ ❑ Facility has copy of previous year's Annual Report on file for review? ❑ ❑ ❑ ■ Comment: The records reviewed during the inspection were organized and well maintained. DMRs, COCs, visitation logs, calibration logs and bench sheets were reviewed for the period June 2016 through April 2017. Laboratory Yes No NA NE Page# 3 Permit: NCO020184 Inspection Date: 05/24/2017 Owner - Facility: Long Creek wWrP 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? ■ ❑ ❑ ❑ # Is the facility using a contract lab? N ❑ ❑ ❑ # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees M ❑ ❑ ❑ 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: Influent and effluent analyses(including field are performed under the City's Crowders Creek laboratory certification 1210). Meritech, Inc. 41295 (toxicity) and Shealy Environmental 4329 Hardnes PPA or anics Cyanide and chloroform have also been contracted to provide analytical support. The laboratory instrumentation used for field analyses appeared to be properly calibrated and documented. Influent Sampling Yes No NA NE # Is composite sampling flow proportional? ■ ❑ ❑ ❑ Is sample collected above side streams? ■ ❑ ❑ ❑ Is proper volume collected? M ❑ M. ❑ Is the tubing clean? ■ ❑ ❑ ❑ # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees ■ ❑ ❑ ❑ Celsius)? ❑ ❑ ❑ Is sampling performed according to the permit? ❑ ❑ ❑ Comment: Permit requires both influent composite samples and grab sampling. Aliquot sample taken duringthe he inspection pulled 210 ml, Effluent Samplinq Yes No NA NE Is composite sampling flow proportional? M ❑ ❑ ❑ Is sample collected below all treatment units? M ❑ ❑ ❑ Is proper volume collected? M ❑ ❑ ❑ Is the tubing clean? ■ ❑ ❑ ❑ # 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 M ❑ ❑ ❑ representative)? Comment: Permit requires both effluent composite samples (flow proportional) and grab sampling Aliquot sample taken during the inspection pulled 200 ml. Upstream / Downstream Sam>31ing Yes No NA NE Page# 4 . Permit: N00020184 Owner -Facility: Long Creek WVVrP Inspection Date: 05/24/2017 Inspection Type: Compliance Evaluation Upstream / Downstream SampIing Yes No NA NE Is the facility sampling performed as required by the permit (frequency, sampling type, and ❑ ❑ ❑ sampling location)? Comment: Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? ■ ❑ ❑ ❑ Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable 0 ❑ ❑ ❑ Solids, pH, DO, Sludge Judge, and other that are applicable? Comment: The facility appeared to be properly operated and well maintained. Theo erations staff incorporate a comprehensive process control ,program.with all documentation being_ properly_ documented and maintained on-site. The facility is equipped with a SCADA system to assist the operations staff with the monitoHna of treatment processes and units. Bar Screens Yes No NA NE Type of bar screen 0 ❑ ❑ ❑ a.Manual ❑ ❑ ❑ ❑ b.Mechanical Are the bars adequately screening debris? M ❑ ❑ ❑ Is the screen free of excessive debris? ® ❑ ❑ ❑ Is disposal of screening in compliance? M ❑ ❑ ❑ Is the unit in good condition? ■ ❑ ❑ ❑ Comment: Screenings and grit are disposed at the county Landfill. Grit Removal Yes No NA NE Type of grit removal 0 ❑ ❑ ❑ a.Manual ❑ ❑ ❑ ❑ b.Mechanical Is the grit free of excessive organic matter? M ❑ ❑ ❑ Is the grit free of excessive odor? N ❑ ❑ ❑ # Is disposal of grit in compliance? 0 ❑ ❑ ❑ Comment: Screenings and grit are. disposed at the county landfill. Pump Station - Influent Yes No NA NE Is the pump wet well free of bypass lines or structures? 0 ❑ ❑ ❑ Is the wet well free of excessive grease? M ❑ ❑ ❑ Page# 5 Permit: NCO020184 Inspection Date: 05/24/2017 Owner -Facility: Long Creek VWVfP Inspection Type: Compliance Evaluation Is the clarifier free of black and odorous wastewater? 0 ❑ Pump Station - Influent Yes No NA NE Are all pumps present? 0 ❑ ❑ ❑ Are all pumps operable? N ❑ ❑ ❑ Are float controls operable? 0 ❑ ❑ ❑ Is SCADA telemetry available and operational? N ❑ ❑ ❑ Is audible and visual alarm available and operational? 0 ❑ ❑ M Comment: 4 of the 5 pumps were in operation during the inspection one pump was out for maintenance. Primary Clarifier Yes No NA NE Is the clarifier free of black and odorous wastewater? 0 ❑ ❑ ❑ Is the site free of excessive buildup of solids in center well of circular clarifier? N ❑ ❑ ❑ Are weirs level? E ❑ ❑ ❑ Is the site free of weir blockage? 0 ❑ ❑ ❑ Is the site free of evidence of short-circuiting? N ❑ ❑ ❑ Is scum removal adequate? t ❑ ❑ ❑ Is the site free of excessive floating sludge? M ❑ ❑ ❑ Is the drive unit operational? S ❑ ❑ ❑ Is the sludge blanket level acceptable? S ❑ ❑ ❑ Is the sludge blanket level acceptable? (Approximately % of the sidewall depth) 0 ❑ ❑ ❑ Comment: One of three primaries was in service all operational)_ Nutrient Removal Yes No NA NE # Is total nitrogen removal required? 0 ❑ ❑ ❑ # Is total phosphorous removal required? 0 ❑ ❑ ❑ Type Biological # Is chemical feed required to sustain process? 0 ❑ ❑ ❑ Is nutrient removal process operating properly? N ❑ ❑ ❑ Comment: The facility, combined with Eagle Road VWVTP are required to comply with a summer {April 1 - October 31) effluent total nitrogen loading limit f214,171, Ib/season as well as winter 'November 1 — March 31) effluent total nitrogen loading limit X302,242 Ib/season). The combined facilities also have a year around effluent total phosphorus loading limit (60,882 Ib/year). Nutrient removal is performed biologically and chemically alum Aeration Basins Yes No NA NE Mode of operation Ext. Air Page# 6 Permit: NCO020184 Inspection Date: 05/24/2017 Aeration Basins Type of aeration system Is the basin free of dead spots? Are surface aerators and mixers operational? Are the diffusers operational? Is the foam the proper color for the treatment process? Does the foam cover less than 25% of the basin's surface? Is the DO level acceptable? Is the DO level acceptable?(1.0 to 3.0 mg/1) Owner -Facility: Long Creek WWTP Inspection Type: Compliance Evaluation Yes No NA NE Diffused M ❑ ❑ ❑ 0 ❑ ❑ ❑ ■ ❑ ❑ ❑ 0 ❑ ❑ ❑ ■ ❑ ❑ ❑ r ❑ ❑ ❑ M ❑ ❑ ❑ Comment: 3 of the 4 aeration tracks were in operation during the inspection one track was out for maintenance. Yes No NA NE Is the clarifier free of black and odorous wastewater? M ❑ Chemical Feed Yes No NA NE Is containment adequate? 0 ❑ ❑ ❑ Is storage adequate? M ❑ ❑ ❑ Are backup pumps available? ■ ❑ ❑ ❑ Is the site free of excessive leaking? 0 ❑ ❑ ❑ Comment: Secondary Clarifier Yes No NA NE Is the clarifier free of black and odorous wastewater? M ❑ ❑ ❑ Is the site free of excessive buildup of solids in center well of circular clarifier? M ❑ ❑ ❑ Are weirs level? ■ ❑ ❑ ❑ Is the site free of weir blockage? M ❑ ❑ ❑ Is the site free of evidence of short-circuiting? ■ ❑ ❑ ❑ Is scum removal adequate? M ❑ ❑ ❑ Is the site free of excessive floating sludge? ■ ❑ ❑ ❑ Is the drive unit operational? ■ ❑ ❑ ❑ Is the return rate acceptable (low turbulence)? ■ ❑ ❑ ❑ Is the overflow clear of excessive solids/pin floc? ■ ❑ ❑ ❑ Is the sludge blanket level acceptable? (Approximately % of the sidewall depth) 0 ❑ ❑ ❑ Comment: Three of four secondaries were in service (all operational). Filtration (High_ Rate_ Tertiary) Type of operation: Yes No NA NE Down flow Page# 7 Permit: NC0020184 Owner -Facility: Long Creek WWTP Are cylinders secured adequately? Gas ❑ Inspection Date: 05/24/2017 Inspection Type: Compliance Evaluation Are cylinders protected from direct sunlight? ❑ Filtration (High Rate Tertiary) Yes No NA NE Is the filter media present? N ❑ ❑ ❑ Is the filter surface free of clogging? N ❑ ❑ ❑ Is the filter free of growth? ■ ❑ ❑ ❑ Is the air scour operational? E ❑ ❑ ❑ Is the scouring acceptable? ■ ❑ ❑ ❑ Is the clear well free of excessive solids and filter media? ® ❑ ❑ ❑ Comment: all eight tertiary filters were in service. Disinfection -Gas Yes No NA NE Are cylinders secured adequately? Gas ❑ ❑ ❑ Are cylinders protected from direct sunlight? ❑ ❑ ❑ Is there adequate reserve supply of disinfectant? 0 ❑ ❑ ❑ Is the level of chlorine residual acceptable? N ❑ ❑ ❑ Is the contact chamber free of growth, or sludge buildup? N ❑ ❑ ❑ Is there chlorine residual prior to de -chlorination? 0 ❑ ❑ ❑ Does the Stationary Source have more than 2500 lbs 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- -_) 1000-0006-7367 If yes, then when was the RMP last updated? Comment: De -chlorination Yes No NA NE Type of system ? Gas 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: One ton cylinders are stored outside together under cover Are tablet de -chlorinators operational? ❑ ❑ ■ ❑ Number of tubes in use? Comment: Page# 8 Permit: NCO020184 Inspection Date: 05/24/2017 Owner -Facility: Long Creek WWTP Inspection Type: Compliance Evaluation # Is flow meter used for reporting? ■ ❑ Pumas -RAS -WAS Yes No NA NE Are pumps in place? ■ ❑ ❑ ❑ Are pumps operational? ■ ❑ ❑ ❑ Are there adequate spare parts and supplies on site? r ❑ ❑ ❑ Comment: Flow Measurement - Effluent Yes No NA NE # Is flow meter used for reporting? ■ ❑ ❑ ❑ Is flow meter calibrated annually? M ❑ ❑ ❑ Is the flow meter operational? ■ ❑ ❑ ❑ (If units are separated) Does the chart recorder match the flow meter? ■ ❑ ❑ ❑ Comment: The influent and effluent flow meters are calibrated/verified twice Der near and were last calibrated/verifed on 12/20/2016 by Fortech Automation Encineering, Effluent Pipe Yes No NA NE Is right of way to the outfall properly maintained? ❑ ❑ ❑ M Are the receiving water free of foam other than trace amounts and other debris? ❑ ❑ ❑ ■ If effluent (diffuser pipes are required) are they operating properly? ❑ ❑ ❑ M Comment: Effluent leaving the WWTP appeared clear with no floatable solids or foam. Effluent pipe was not examined during the inspection. Anaerobic Digester Yes No NA NE Type of operation: Fixed cover Is the capacity adequate? 0 ❑ ❑ ❑ # Is gas stored on site? ❑ ❑ ❑ ■ Is the digester(s) free of tilting covers? ❑ ❑ ❑ Is the gas burner operational? ❑ ❑ ❑ ■ Is the digester heated? ❑ ❑ ❑ 0 Is the temperature maintained constantly? ❑ ❑ ❑ ■ Is tankage available for properly waste sludge? ■ ❑ ❑ ❑ Comment: Waste activated sludge (WAS) is thickened in a DAF unit prior to being pumped to the digesters. The facility is ecuigped with six anaerobic digesters (4 -primary, 3 in operation and 2 -secondary). Bio -solids are land applied by a contracted company (EMA) under the authority of Permit No. W00001793. Lagoons Yes No NA NE Page# 9 Permit: NC0020184 Inspection Date: 05/24/2017 La -goons Type of lagoons? # Number of lagoons in operation at time of visit? Are lagoons operated in? # Is a re -circulation line present? Is lagoon free of excessive floating materials? # Are baffles between ponds or effluent baffles adjustable? Owner -Facility: Long CreekWWTP Inspection Type: Compliance Evaluation Are dike slopes clear of woody vegetation? Are weeds controlled around the edge of the lagoon? Are dikes free of seepage? Are dikes free of erosion? Are dikes free of burrowing animals? # Has the sludge blanket in the lagoon (s) been measured periodically in multiple locations? # If excessive algae is present, has barley straw been used to help control the growth? Is the lagoon surface free of weeds? Is the lagoon free of short circuiting? Comment: The facility is eguipped with two lagoons used for bio -solids storage (prior to land application). Standby Power Is automatically activated standby power available? Is the generator tested by interrupting primary power source? Is the generator tested under load? Was generator tested & operational during the inspection? Do the generator(s) have adequate capacity to operate the entire wastewater site? Is there an emergency agreement with a fuel vendor for extended run on back-up power? Is the generator fuel level monitored? Yes No NA NE 2 Series ❑ ❑ M ❑ ■ ❑ ❑ ❑ ❑ ❑ ■ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ❑ ❑ M ❑ ❑ ❑ ■ ❑ ❑ ❑ M ❑ M ❑ ❑ ❑ ❑ ❑ ■ ❑ Yes No NA NE ■ ❑ ❑ ❑ M ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ❑ M ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ E ❑ ❑ ❑ Comment: The facility -is eguipped with three standby generators that are placed under load at leat once per month (peak shaving/storm events) Page# 10