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Home My WebLink AboutNC0031836_Compliance Evaluation Inspection_20210202ROY COOPER Governor MICHAEL S. REGAN Secretary S. DANIEL SMITH NORTH CAROLINA Director Environmental Quality February 2, 2021 Andy Smith, Operations Manager/Water Resources City of Statesville Post Office Box 1111 Statesville, North Carolina 28687 Subject: Compliance Evaluation Inspection City of Statesville/ 4th Creek WWTP NPDES Permit No. NC0031836 Iredell County Dear Mr. Smith: Enclosed is a copy of the Compliance Evaluation Inspection Report for the inspection conducted at the subject facility on January 28, 2021, by Mr. Wes Bell of this Office. Please inform the facility's Operator -in -Responsible Charge (ORC) of our findings by forwarding a copy of the enclosed report. Should you have any questions concerning this letter, please do not hesitate to contact Mr. Bell at (704) 235- 2192, or via email at wes.bell@ncdenr.gov. Enclosure: Inspection Report D_E NORTH CAROLINA Department el EnNrumimbl Qualpy Sincerely, p—DocuSigned by: `—A14CC681 AF27425... W. Corey Basinger, Regional Supervisor Water Quality Regional Operations Section Division of Water Resources, NCDEQ North Carolina Department of Environmental Quality I Division of Water Resources Mooresville Regional Office 1610 East Center Avenue, Suite 301 I Mooresville, North Carolina 28115 704.663.1699 United States Environmental Protection Agency EPA Washington, D.C. 20460 Water Compliance Inspection Report Form Approved. OMB No. 2040-0057 Approval expires 8-31-98 Section A: National Data System Coding (i.e., PCS) Transaction Code 1 IN I 2 IL I 21 1 1 1 1 1 NPDES yr/mo/day Inspection 3 I NC0031836 111 121 21/01/28 117 Type 1810I I I 1 1 1 Inspector Fac Type 191 S I 2011 1 1 1 1 11 1 1 1 I I I 1 1 1 1 1 1 I I I I I 1 11 1 1 1 I 1 P6 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA Reserved 67I2.0 I 70I4 I 71IN I 72 I N I 73I 1 74 751 I I 1 I I I I I I I80 l Section B: Facility Data Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include POTW name and NPDES oermit Number) Fourth Creek WWTP 693 Bell Farm Rd Statesville NC 28687 Entry Time/Date 09:20AM 21/01/28 Permit Effective Date 19/03/01 Exit Time/Date 02:05PM 21/01/28 Permit Expiration Date 23/03/31 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) /// Brian Mack Dishman//704-875-6443 / Kenneth Andrew Galloway/ORC// Other Facility Data Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Ron Smith,PO Box 1111 Statesville NC 286871111/City Manager/704-878-3584/ No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit Flow Measurement Operations & Maintenar Records/Reports Self -Monitoring Progran Sludge Handling DispoFacility 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) Wes Bell of Inspector(s) Agency/Office/Phone and Fax Numbers Date �Docusigned by: DWR/MRO WQ/704-663-1699 Ext.2192/ 2/2/2021 "-A61696D90CC3437... Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date W. Corey Basinger DWR/Division of Water Quality/704-235-2194/ EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. DocuSigned by: 2/2/2021 A14CC681AF27425... Page# 1 NPDES yr/mo/day 31 NC0031836 111 121 21/01/28 I17 Inspection Type 18 [j 1 Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Page# 2 Permit: NC0031836 Inspection Date: 01/28/2021 Owner - Facility: Fourth Creek WWTP 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? Yes No NA NE ❑ ❑ • ❑ ▪ ❑ ❑ ❑ Comment: The City implements a Division -approved Industrial Pretreatment Program. Gravity belt thickener should be removed from the facility description during the next permit renewal process. The last compliance evaluation inspection at this facility was performed by DWR staff on 2/8/2019. 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 operatc • ❑ ❑ ❑ 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: NC0031836 Inspection Date: 01/28/2021 Owner - Facility: Fourth Creek WWTP Inspection Type: Compliance Evaluation Record Keeping Yes No NA NE Comment: The records reviewed during the inspection were organized and well maintained. Discharge Monitoring Reports (eDMRs) were reviewed for the period January 2020 through December 2020. All monitoring frequencies were correct. Effluent monthly average flow violations were reported for February, May and August 2020. These violations have been previously addressed by the Division through the issuances of Notice of Deficiencies (NODs) and Notice of Violations (NOVs). Laboratory Are field parameters performed by certified personnel or laboratory? Are all other parameters(excluding field parameters) performed by a certified lab? # 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? Yes No NA NE • ❑ ❑ ❑ ▪ El El El • ❑ ❑ ❑ Comment: Influent and effluent analyses are performed under the City of Statesville's municipal laboratory (4th Creek) certification #181. Pace Analytical Services, Meritech, Inc., StatesvillE Analytical and ETT Environmental have also 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? Comment: The subject permit requires influent BOD and TSS composite samples. 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)? Is the facility sampling performed as required by the permit (frequency, sampling type representative)? Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ ▪ ❑ ❑ ❑ Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Page# 4 Permit: NC0031836 Inspection Date: 01/28/2021 Owner - Facility: Fourth Creek WWTP Inspection Type: Compliance Evaluation Effluent Sampling Yes No NA NE Comment: The subject permit requires composite and grab effluent samples. Upstream / Downstream Sampling Yes No NA NE Is the facility sampling performed as required by the permit (frequency, sampling type, anc ❑ ❑ • ❑ sampling location)? Comment: The instream monitoring requirements have been conditionally waived due to the City's participation in the Yadkin -Pee Dee River Basin Association. Operations & Maintenance Is the plant generally clean with acceptable housekeeping? Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge Judge, and other that are applicable? Yes No NA NE Comment: The wastewater treatment facility appeared to be properly operated and well maintained. The ORC and staff incorporate a comprehensive process control program with all measurements being documented and maintained on -site. In-depth operation and maintenance records were also being maintained on -site. The facility is equipped with a SCADA System that is accessible at multiple locations. 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? • ❑ ❑ ❑ Is the unit in good condition? • El El ❑ Comment: Both mechanical screens were in service. Screenings are disposed at the County Landfill. Pump Station - Influent Yes No NA NE Is the pump wet well free of bypass lines or structures? • ❑ ❑ ❑ Is the wet well free of excessive grease? • El El El Are all pumps present? • ❑ ❑ ❑ Are all pumps operable? • ❑ ❑ ❑ Are float controls operable? • ❑ ❑ ❑ Is SCADA telemetry available and operational? • El El El Is audible and visual alarm available and operational? ❑ El • ❑ Page# 5 Permit: NC0031836 Inspection Date: 01/28/2021 Owner - Facility: Fourth Creek WWTP Inspection Type: Compliance Evaluation Pump Station - Influent Comment: Yes No NA NE Aeration Basins Yes No NA NE Mode of operation Step feed Type of aeration system Surface 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? • ❑ El El Is the DO level acceptable?(1.0 to 3.0 mg/I) • El El El Comment: Both aeration basin trains (equipped with platform aeration) were in service. 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'/4 of the sidewall depth) Comment: All three secondary clarifiers were in service. Pumps-RAS-WAS Are pumps in place? Are pumps operational? Are there adequate spare parts and supplies on site? Comment: ▪ El El El ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ Yes No NA NE ■ ❑ ❑ ❑ Page# 6 Permit: NC0031836 Inspection Date: 01/28/2021 Owner - Facility: Fourth Creek WWTP Inspection Type: Compliance Evaluation Pumps-RAS-WAS Yes No NA NE 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? Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Comment: All three chlorine contact chamber trains were in service. One contact chamber is typically drained and cleaned every quarter. De -chlorination Yes No NA NE Type of system ? Liquid 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? • ❑ ❑ ❑ Comment: Are the tablets the proper size and type? Are tablet de -chlorinators operational? Number of tubes in use? 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: The flow meter is calibrated twice per year and was last calibrated on 11/5/2020 by FCX Services. The contracted company should perform an instantaneous flow measurement verification (against standard discharge tables) during the on -site calibration to ensure the meter reads within 10% of the true discharge volume. Effluent Pipe Is right of way to the outfall properly maintained? Yes No NA NE Page# 7 Permit: NC0031836 Inspection Date: 01/28/2021 Owner - Facility: Fourth Creek WWTP Inspection Type: Compliance Evaluation Effluent Pipe Are the receiving water free of foam other than trace amounts and other debris? If effluent (diffuser pipes are required) are they operating properly? 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? Comment: Solids Handling Equipment Is the equipment operational? Is the chemical feed equipment operational? Is storage adequate? Is the site free of high level of solids in filtrate from filter presses or vacuum filters? Is the site free of sludge buildup on belts and/or rollers of filter press? Is the site free of excessive moisture in belt filter press sludge cake? The facility has an approved sludge management plan? Yes No NA NE Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Comment: The belt press was operational; however, the treatment unit was not in service during the inspection. Dewatered bio-solids are treated via Sta-Lime process and distributed under Permit No. WQ0006245. The City also maintains Land Application Permit No. WQ0014543 as backup. 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 • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Comment: The backup generator is tested every ten (10) days under load. The generator is serviced quarterly by Power Generation & Control. Page# 8 Permit: NC0031836 Inspection Date: 01/28/2021 Owner - Facility: Fourth Creek WWTP Inspection Type: Compliance Evaluation Standby Power Yes No NA NE Page# 9