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Home My WebLink AboutNC0006033_Compliance Evaluation Inspection_20240412ROY COOPER Governor ELIZABETH S. BISER Secretary RICHARD E. ROGERS, JR. Director Stephanie Scheringer, Assistant Director of Utilities Two River Utilities P.O. Box 1748 Gastonia, NC 28053-1748 SUBJECT: Compliance Evaluation Inspection Two Rivers Utilities/Eagle Road WWTP NPDES Permit No. NC0006033 Gaston County Dear Ms. Scheringer: NORTH CAROLINA Environmental Quality April 12, 2024 Enclosed is a copy of the Compliance Evaluation Inspection (CEI) Report for the inspection conducted at the subject facility on April 10, 2024, by Mr. Wes Bell of this Office. This Office would like to thank all WWTP staff for their cooperation and assistance that was provided throughout this inspection. Please advise the facility's Operator -in -Responsible Charge (ORC) of our findings by forwarding the enclosed report. Should you have any questions concerning this report, please do not hesitate to contact Mr. Bell at (704) 235-2192 or at wes.belIkdeq.nc. gov. Sincerely, DocuSigned by: A w N P-Lu" F161 F669A2D84A3... Andrew H. Pitner, P.G. Regional Supervisor Water Quality Regional Operations Section Mooresville Regional Office Division of Water Resources, NCDEQ Enclosure: Inspection Report Cc: NPDES Program Files - Laserfiche el- DEQ�� North Carolina Department of Environmental quality I Divisionof Water Resources Mooresville Regional Office 1 610 East Center Avenue, Suite 301 1 Mooresville, North Carolina 28115 704.6631699 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 u 3 I NC0006033 111 121 24/04/10 I17 18 LC] I 19 I s I 20L] 21111I I I I I I I II I I 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 B1 QA ---------------------- Reserved ------------------- 67 2.0 701d I 71 I„ I 72 I r., I 71 I 74 79 I I I I I I I80 L—I ty L-1 I I 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) 09:30AM 24/04/10 22/02/01 Eagle Road WWTP 661 Eagle Rd Exit Time/Date Permit Expiration Date Belmont NC 28012 11:20AM 24/04/10 27/01/31 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data David Shellenbarger//704-842-5106 / Justin Thomas Starnes/ORC/704-854-6657/ Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Michael Peoples,PO Box 1748 Gastonia NC 280531748//704-866-6719/ No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit 0 Flow Measurement Operations & Maintenar Records/Reports Self -Monitoring Progran 0 Sludge Handling Dispo: Facility Site Review Effluent/Receiving Wate 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 Wes Bell Signed by: DWR/MRO WQ/704-235-2192/ 4/12/2024 2 re& E�D`,','�96D90=437 ... Signature of Man t?91QsQnAA�@raviewer Agency/Office/Phone and Fax Numbers Date Andrew Pitn rA""�'u`' H �'x�/R/MRO WQ/704-663-1699 Ext.2180/ 4/12/2024 F161 FB69A2D84A3... EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page# NPDES yr/mo/day Inspection Type NC0006033 I11 12I 24/04/10 117 18 i c i Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Page# Permit: NC0006033 Owner -Facility: Eagle Road WWTP Inspection Date: 04/10/2024 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? ■ ❑ ❑ ❑ Is access to the plant site restricted to the general public? ■ ❑ ❑ ❑ Is the inspector granted access to all areas for inspection? ■ ❑ ❑ ❑ Comment: Two Rivers Utilities implements a Division -approved Industrial Pretreatment Program. The last compliance evaluation inspection at this facility was performed by DWR staff on 3/15/22. Record Keeping 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 ■ 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? ■ ❑ ❑ ❑ 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? ■ ❑ ❑ ❑ Facility has copy of previous year's Annual Report on file for review? ■ ❑ ❑ ❑ Page# 3 Permit: NC0006033 Inspection Date: 04/10/2024 Owner -Facility: Eagle Road WWTP Inspection Type: Compliance Evaluation Record Keeping Yes No NA NE Comment: The records reviewed durinq the inspection were organized and well maintained. Discharge Monitoring Reports (eDMRs) were reviewed for the period March 2023 through February 2024. No limit and/or monitoring violations were reported. In-depth operation and maintenance records including process control measurements were being documented and maintained on -site. 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 Celsius)? Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees? ❑ ❑ 0 ❑ Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees? ❑ ❑ 0 ❑ Comment: Influent and effluent analyses (including field) are performed under the City of Gastonia — Crowders Creek WWTP laboratory certification #210. Meritech, Inc. (chronic toxicity) and Pace Analytical Services have been contracted to provide analytical support. Influent Sampling # Is composite sampling flow proportional? Is sample collected above side streams? 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 sampling performed according to the permit? Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ■ ❑ ❑ ❑ Comment: The subject permit requires influent BOD and TSS composite samples. The composite sampler is calibrated monthly (at a minimum) to ensure the programmed aliquot volume is being collected. Effluent Sampling Is composite sampling flow proportional? 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)? Yes No NA NE ■ ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Page# 4 Permit: NC0006033 Inspection Date: 04/10/2024 Owner -Facility: Eagle Road WWTP Inspection Type: Compliance Evaluation Effluent Sampling Yes No NA NE Is the facility sampling performed as required by the permit (frequency, sampling type 0 ❑ ❑ ❑ representative)? Comment: The subject permit requires effluent composite and grab samples. The composite sampler is calibrated monthly (at a minimum) to ensure the programmed aliquot volume is being collected. Upstream / Downstream Sampling Is the facility sampling performed as required by the permit (frequency, sampling type, and sampling location)? Comment: Yes No NA NE ■ ❑ ❑ ❑ Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? 0 ❑ ❑ ❑ Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable ❑ ❑ ❑ Solids, pH, DO, Sludge Judge, and other that are applicable? Comment: The wastewater treatment facility appeared to be properly operated and well maintained. The operations staff incorporate a comprehensive process control program. The facility is equipped with a SCADA system to assist the wastewater staff in alarm notifications and treatment operations. The operations staff at the Two Rivers Utilities/Long Creek WWTP are notified of alarm conditions at the Eagle Road WWTP during the time periods operators are not on -site (after normal work hours, weekends, etc.). Bar Screens Yes No NA NE Type of bar screen a.Manual ❑ b.Mechanical Are the bars adequately screening debris? 0 ❑ ❑ ❑ Is the screen free of excessive debris? ■ ❑ ❑ ❑ Is disposal of screening in compliance? 0 ❑ ❑ ❑ Is the unit in good condition? 0 ❑ ❑ ❑ Comment: Screeninqs are disposed at a permitted landfill. 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? ■ ❑ ❑ ❑ Are all pumps present? ❑ ❑ 0 ❑ Page# 5 Permit: NC0006033 Inspection Date: 04/10/2024 Equalization Basins Owner -Facility: Eagle Road WWTP Inspection Type: Compliance Evaluation Yes No NA NE Are all pumps operable? ❑ ❑ 0 ❑ Are float controls operable? ❑ ❑ 0 ❑ Are audible and visual alarms operable? ❑ ❑ 0 ❑ # Is basin size/volume adequate? 0 ❑ ❑ ❑ Comment: The facility is equipped with an emergency storage basin for high flow conditions, etc. Aeration Basins Mode of operation 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) Comment: Sodium hydroxide is added to maintain appropriate alkalinity/pH levels. Secondary Clarifier 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'/4 of the sidewall depth) Yes No NA NE Ext. Air Surface • ❑ ❑ ❑ • ❑ ❑ ❑ ❑ ❑ ■ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Comment: Both secondary clarifiers were operational; however, only one secondary was in service due to low influent flows. Aluminum chlorohydrate is added to enhance settling and phosphorus removal. Page# 6 Permit: NC0006033 Inspection Date: 04/10/2024 Owner -Facility: Eagle Road WWTP Inspection Type: Compliance Evaluation Pumps-RAS-WAS Yes No NA NE Are pumps in place? 0 ❑ ❑ ❑ Are pumps operational? 0 ❑ ❑ ❑ Are there adequate spare parts and supplies on site? ❑ ❑ ❑ ■ Comment: A WAS pump valve for the secondary currently not in service was in the process of being repaired. Disinfection -Liquid Is there adequate reserve supply of disinfectant? (Sodium Hypochlorite) Is pump feed system operational? Is bulk storage tank containment area adequate? (free of leaks/open drains) Is the level of chlorine residual acceptable? Is the contact chamber free of growth, or sludge buildup? Is there chlorine residual prior to de -chlorination? Comment: 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? Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ ■ ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Yes No NA NE Liquid ■ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ Comment: Aqueous sodium bisulfite is used for dechlorination. Following dechlorination, the effluent flows through a post aeration treatment process prior to being discharged into the receiving stream. Are tablet de -chlorinators operational? ❑ ❑ 0 ❑ Number of tubes in use? Comment: Chemical Feed Is containment adequate? Is storage adequate? Are backup pumps available? Is the site free of excessive leaking? Comment: Yes No NA NE ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ Page# 7 Permit: NC0006033 Owner -Facility: Eagle Road WWTP Inspection Date: 04/10/2024 Inspection Type: Compliance Evaluation Chemical Feed Yes No NA NE Flow Measurement - Effluent Yes No NA NE # Is flow meter used for reporting? 0 ❑ ❑ ❑ 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 meters (effluent and influent) are calibrated twice per year and were last calibrated on 3/20/24 by CITI, Inc. Effluent Pipe Yes No NA NE Is right of way to the outfall properly maintained? 0 ❑ ❑ ❑ Are the receiving water free of foam other than trace amounts and other debris? ■ ❑ ❑ ❑ If effluent (diffuser pipes are required) are they operating properly? ❑ ❑ 0 ❑ Comment: The effluent appeared clear with no floatable solids or foam. Aerobic Digester Is the capacity adequate? Is the mixing adequate? Is the site free of excessive foaming in the tank? # Is the odor acceptable? # Is tankage available for properly waste sludge? Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Comment: Bio-solids are land applied by a contracted company (EMA Resources) under the authority of Permit No. WQ0001793. Bio-solids can also be transported to the Two Rivers Utilities' Resource Recovery Farm located in Gaston County if application is hindered due to inclement weather. 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 • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ■ ❑ ❑ ❑ Page# 8 Permit: NC0006033 Inspection Date: 04/10/2024 Standby Power Owner -Facility: Eagle Road WWTP Inspection Type: Compliance Evaluation Yes No NA NE Comment: The facility is equipped with two backup generators. The generators are tested monthly and placed under load quarterly. The generators are serviced by a contracted company (Carolina CAT) twice per year. Page#