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Home My WebLink AboutNC0024945_Compliance Evaluation Inspection_20160322 PAT MCCRORY k a Governor 3 DONALD R. VAN DER VAART Secretary WaterResources i S. JAY ZIMMERMAN ENVIRONMENTAL QUALITY i Director March 22, 2016 RECEIVEDUDEUDWR Ms. Jacqueline A. Jarrell, P.E., Superintendent MAR 2 9 2016 Environmental Management Division Water Quality Charlotte Mecklenburg Utilities Permitting Section 4222 Westmont Drive 1 Charlotte, North Carolina 28217 t SUBJECT: Compliance Evaluation Inspection Irwin Creek WWTP NPDES Permit NCO024945 'Mecklenburg County, NC Dear Ms. Jerrell: i i On March 21, 2016, Roberto Scheller of this Office conducted an inspection at the subject facility. This inspection was conducted as a Compliance Evaluation Inspection (CEI) to insure compliance with permit requirements and conditions. At the time of inspection the treatment facility appeared to be well maintained and operated. We wish to thank you and operating staff for your assistance regarding the inspection. I - t The enclosed report should be self-explanatory; however, should you have any questions, please do not hesitate to contact myself of Roberto Scheller at (704) 235- 2204 or roberto.scheller@ncdenr.gov. Sincerely, W. Corey Basinger, Regional Supervisor Water Quality Regional Operations Section Division of Water Resources, NCDEQ Enclosure: Inspection Report cc: Mike Lingerfelt, ORC, Charlotte Mecklenburg Utilities— Irwin Creek WWTP, 4000 Westmont Drive, Charlotte, NC 28217 Wastewater Branch MSC 1617 — Central files basement File I State of North Carolina I Environmental Quality I Water Resources I Water Quality Regional Operations I Mooresville Regional Office)610 East Center Avenue,Suite 3011 Mooresville,North Carolina 28115 704 663 1699 I , r"r 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 [N 1 2 15 1 3 I N00024945 I11 12 16/03/21 17 181 C I 191 S I 201 211111 I I I I I I II 11 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 61 QA -----------Reserved----------- 67 70 L1 J� 71 Lj 72 [2_j 73 LLJ 74 751 III I I I 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 OOAM 16/03/21 13/01/01 Irwin Creek WWTP 4000 Westmont Dr Exit Time/Date Permit Expirabon Date 12:39PM 16/03/21 15/05/31 Charlotte NC 28217 Name(s)of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data Michael Ray Lingerfelt/ORCf704-357-1344/ Name,Address of Responsible OfficiaUTitle/Phone and Fax Number Contacted Jacqueline A Jarreli,4222 Westmont Dr Charlotte NC No 28217/Superintendent/7o4-336-446Of7043365081 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 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 }Roberto Scheller \ , MRO WQ//252-946-6481/ r Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date W.Corey Basinger MRO WQH704-235-2194/ EPA Form 3560-3(Rev 9-94)Previous editions are obsolete Page# NPDES yr/mo/day Inspection Type 1 31 NCO024945 I1 12� 16/03/21 17 18 JCJ Section D:Summary of Finding/Comments(Attach additional sheets of narrative and checklists as necessary) Page# 2 Permit: NCO024945 Owner-Facility: Irwin Creek WWTP Inspection Date: 03/21/2016 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? M ❑ ❑ ❑ Is access to the plant site restricted to the general public? ® ❑ ❑ ❑ Is the inspector granted access to all areas for inspection? ® ❑ ❑ ❑ Comment: Subject permit expired on 5/31/2015. Facility operating under old permit conditions. Record Keepinq 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 l Results of analysis and calibration Dates of analysis Name of person performing analyses Transported CDCs 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 currents ®, ❑ ❑ ❑ 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? ® ❑ ❑ ❑ Is a copy of the current NPDES permit available on site? ® ❑ ❑ ❑ Facility has copy of previous year's Annual Report on file for review? 0 ❑ ❑ ❑ Comment: Recommend that COC indicate that all samples are shipped on ice to Lab. Laboratory Yes No NA NE Are field parameters performed by certified personnel or laboratory? ® ❑ ❑ ❑ Are all other parameters(excluding field parameters)performed by a certified lab? ® ❑ ❑ ❑ Page# 3 Permit: NCO024945 Owner-Facility: Irwin Creek VWJTP Inspection Date: 03/21/2016 Inspection Type: Compliance Evaluation Laboratory Yes No NA NE #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; Influent effluent and field analyses are performed by CMUD's Laboratory Services Division, Certification# 192. Influent Sampling Yes No NA NE - #Is composite sampling flow proportional? 11 ❑ ❑ ❑ Is sample collected above side streams? ® ❑ ❑ ❑ Is proper volume collected? ® ❑ ❑ ❑ Is the tubing clean? M ❑ ❑ ❑ #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: Recommend influent sampler tubing be covered to prevent alga growth. Effluent Sampling Yes No NA NE Is composite sampling flow proportional? 0 ❑ ❑ ❑ Is sample collected below all treatment units? ® ❑ ❑ ❑ Is proper volume collected? ® '❑ ❑ ❑ 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 ® ❑ ❑ ❑ representative)? Comment: Upstream/ Downstream Sampling 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 Page# 4 Permit: NCO024945 Owner-Facility: Irwin CreekWWTP Inspection Date: 03/21/2016 Inspection Type: Compliance Evaluation Operations &Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? ■ ❑ ❑ ❑ Does the facility analyze process control parameters,for ex: MLSS, WRT, Settleable ■ ❑ ❑ ❑ Solids, pH,DO, Sludge Judge,and otherthat are applicable? Comment: Equalization Basins Yes No NA NE Is the basin aerated? ❑ ❑ 0 ❑ Is the basin free of bypass lines or structures to the natural environment? 0 ❑ ❑ ❑ Is the basin free of excessive grease? 0 ❑ ❑ ❑ Are all pumps present? 0 ❑ ❑ ❑ Are all pumps operable? 0 ❑ ❑ ❑ Are float controls operable? 0 ❑ ❑ ❑ Are audible and visual alarms operable? ❑ ❑ 0 ❑ #Is basin size/volume adequate? 0 ❑ ❑ ❑ Comment: EQ basin is equipped with separate screening and grit removal. Bar Screens Yes No NA NE ~� Type of bar screen \.� a.Manual ❑ b.Mechanical Are the bars adequately screening debris? ❑ ❑ ❑ Is the screen free of excessive debris? ® ❑ ❑ '❑ . Is disposal of screening in compliance? 0 ❑ ❑ ❑ Is the unit in good condition? 0 ❑ ❑ ❑ Comment: 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? 0 ❑ ❑ ❑ Are all pumps present? 0 ❑ ❑ ❑ Are all pumps operable? 0 ❑ ❑ ❑ Are float controls operable? 0 ❑ ❑ ❑ Is SCADA telemetry available and operational? 0 ❑ ❑ ❑ Is audible and visual alarm available and operational? ❑ ❑ 0 ❑ Page# 5 f Permit: NC0024945 Owner-Facility: Irwin Creek WNfrP Inspection Date: 03/21/2016 Inspection Type: Compliance Evaluation Pump Station -Influent Yes No NA NE Comment: Flow Measurement- Influent Yes No NA NE #Is flow meter used for reporting? ® ❑ ❑ ❑ Is flow meter calibrated annually? ® ❑ ❑ ❑ Is the flow meter operational? ® ❑ ❑ ❑ (If units are separated)Does the chart recorder match the flow meter? ❑ ❑ ® ❑ Comment: Grit Removal Yes No NA NE Type of grit removal a.Manual ❑ b.Mechanlcal Is the grit free of excessive organic matter?'- ❑ ❑ ❑ Is the grit free of excessive odor? ® ❑ ❑ ❑ #Is disposal of grit in compliance? E ❑ ❑ ❑ Comment: Screenings and grit are disposed of in Republic Services Landfill. Primary 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? ® ❑ ❑ ❑ Are weirs level? ® ❑ ❑ ❑ Is the site free of'weir blockage? ® ❑ ❑ ❑ Is the site free of evidence of short-circuiting? ® ❑ ❑ ❑ Is scum removal adequate? ® ❑ ❑ ❑ Is the site free of excessive floating sludge? ® ❑ ❑ ❑ Is the drive unit operational? ® ❑ ❑ ❑ Is the sludge blanket level acceptable? ® ❑ ❑ ❑ Is the sludge blanket level acceptable?(Approximately%of the sidewall depth) ® ❑ ❑ ❑ Comment: Facility is using 2 of 3 primary clarifiers. Aeration Basins Yes No NA NE Mode of operation Ext.Air Page# 6 Permit: NCO024945 Owner-Facility: Irwin Creek WWTP Inspection Date: 03/21/2016 Inspection Type: Compliance Evaluation Aeration Basins Yes No NA NE Type of aeration system Diffused Is the basin free of dead spots? ® ❑ ❑ ❑ Are surface aerators and mixers operational? ❑ ❑ ■ ❑ Are the diffusers operational? 0 ❑ ❑ ❑ Is the foam the proper color for the treatment process? -M ❑ ❑ ❑ 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) ® ❑ ❑ ❑ Comment: Magnesium hydroxide is added to adjust pH. Chemical Feed Yes No NA NE Is containment adequate? ® ❑ ❑ ❑ Is storage adequate? ® ❑ ❑ ❑ Are backup pumps available? ® ❑ ❑ ❑ Is the site free of excessive leaking? ® ❑ ❑ ❑ 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? ® ❑ ❑ ❑ Are weirs level? ® ❑ ❑ ❑ Is the site free of weir blockage? ® ❑ ❑ ❑ Is the site free of evidence of short-circuiting? ® ❑ ❑ ❑ Is scum removal adequate? ® ❑ ❑ ❑ 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) ® ❑ ❑ ❑ Comment: Pumas-RAS-WAS Yes No NA NE Are pumps in place? ® ❑ ❑ ❑ Page# 7 r Pertnit: NC0024945 Owner-Facility: Irwin Creek WWrP Inspection Date: 03/21/2016 Inspection Type: Compliance Evaluation Pumps-RAS-WAS Yes No NA NE Are pumps operational? ® ❑ ❑ ❑ Are there adequate spare parts and supplies on site? ❑ ❑ ❑ Comment: Filtration (High Rate Tertiary) Yes No NA NE Type of operation: Is the filter media present? ® ❑ ❑ ❑ Is the filter surface free of clogging? ® ❑ ❑ ❑ Is the filter free of growth? M ❑ ❑ ❑ Is the air scour operational? ® ❑ ❑ ❑ Is the scouring acceptable? ® ❑ ❑ ❑ Is the clear well free of excessive solids and filter media? ❑ ❑ ❑ Comment: Disinfection - UV Yes No NA NE Are extra UV bulbs available on site? M ❑ ❑ ❑ Are UV bulbs clean? ❑ ❑ ❑ Is UV intensity adequate? M ❑ ❑ ❑ Is transmittance at or above designed level? M ❑ ❑ ❑ Is there a backup system on site? M ❑ ❑ ❑ Is effluent clear and free of solids? ® ❑ ❑ ❑ Comment: Flow Measurement- Effluent. Yes No NA NE #Is flow meter used for reporting? ❑ ® ❑ ❑ Is flow meter calibrated annually? ® ❑ ❑ ❑ Is the flow meter operational? ® ❑ ❑ ❑ (If units are separated)Does the chart recorder match the flow meter? ❑ ❑ ® ❑ Comment: 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? ® ❑ ❑ ❑ Page# 8 I, Permit: NC0024945 Owner-Facility: Irwin Creek VVKrP Inspection Date: 03/21/2016 Inspection Type: Compliance Evaluation Effluent Pipe Yes No NA NE If effluent (diffuser pipes are required) are they operating properly? ❑ ❑ N ❑ Comment: Effluent clear with few suspended soilds. Standby Power I Yes No NA NE 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? ® ❑ ❑ ❑ Comment: Facility is equipped with two standby generators. Anaerobic Digester Yes No NA NE Type of operation: Is the capacity adequate? ® ❑ ❑ ❑ #Is gas stored on site? ® ❑ ❑ ❑ Is the digester(s)free of tilting covers? ® ❑ ❑ ❑ Is the gas burner operational? ® ❑ ❑ ❑ Is the digester heated? ® ❑ ❑ ❑ Is the temperature maintained constantly? ® ❑ ❑ ❑ Is tankage available for properly waste sludge? ® ❑ ❑ ❑ Comment: Gas was being flared off at time of inspection. Page# 9