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Home My WebLink AboutNC0024252_Compliance Evaluation Inspection_20200325 (2)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 NCO024252 111 121 20/03/13 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) 09:35AM 20/03/13 16/12/01 Northeast WWTP 3680 Hillview Dr Exit Time/Date Permit Expiration Date Conover NC 28613 01:20PM 20/03/13 21/11/30 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data Brian Robert Bradshaw/ORC/828-464-4808/ William Paul Huffman//828-465-2279 / Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Donald E Duncan,PO Box 549 Conover NC 28613/City Manager/828-464-4808/ 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 sgnedby: DWR/MRO WQ/704-663-1699 Ext.2192/ 3/25/2020 Be& E�D`Ilc6L 96D90=43T Signature of Management Q A Reviewer Agency/Office/Phone and Fax N eP9'"1igned by: Date H uft 3.25.2020 Andrew Pitner DWR/MRO WQ/704-663-1699 Ext.2180/ L1"-.� �' F161FB69A2D84A3... EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page# NPDES yr/mo/day Inspection Type NCO024252 I11 12I 20/03/13 117 18 i c i Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Page# Permit: NCO024252 Owner -Facility: Northeast WWTP Inspection Date: 03/13/2020 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 ❑ ❑ 0 ❑ application? Is the facility as described in the permit? 0 ❑ ❑ ❑ # Are there any special conditions for the permit? 0 ❑ ❑ ❑ Is access to the plant site restricted to the general public? 0 ❑ ❑ ❑ Is the inspector granted access to all areas for inspection? M ❑ ❑ ❑ Comment: The City implements an approved Industrial Pretreatment Program. The last compliance evaluation inspection at the facility was performed by DWR staff on -1-1/11M-7 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 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? Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ■ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Page# 3 Permit: NCO024252 Owner -Facility: Northeast WWTP Inspection Date: 03/13/2020 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 February 2019 through January 2020. A monthly average effluent ammonia violation was reported in September 2019. The Division has separately addressed this limit violation through the issuance of a NOV. The February, March, November and December 2019 eDMRs will be revised to include upstream monitoring data, metals values (with the correct units of measurement) and flow values (during holidays) for all applicable above -noted months. . 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 0 ❑ ❑ ❑ 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: On -site field analvses (dissolved oxvaen. DH. temDerature. total residual chlorine) are performed under the City's field laboratory certification #5334. Water Tech Labs and R&A Labs have also been contracted to provide analytical support. The facility staff use the temperature measuring device on the dissolved oxygen (DO) meter to read the effluent (multiple times throughout the month) and upstream/downstream temperatures. The facility staff must ensure that the temperature measuring device on the DO meter is verified annually against a NIST traceable thermometer. The DO meter must read within 0.5 degrees Celsius of the NIST traceable thermometer (Reference: NC Wastewater/Groundwater laboratory certification approved procedure for the analyses of Dissolved Oxygen). Influent Sampling Yes No NA NE # Is composite sampling flow proportional? 0 ❑ ❑ ❑ Is sample collected above side streams? 0 ❑ ❑ ❑ Is proper volume collected? 0 ❑ ❑ ❑ Is the tubing clean? ❑ ❑ 0 ❑ # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees N ❑ ❑ ❑ Celsius)? Is sampling performed according to the permit? 0 ❑ ❑ ❑ Comment: The subject permit requires influent BOD and TSS composite samples. The ORC and staff must ensure that the aliauot volume is verified monthly (at minimum) and documented. Effluent Sampling Is composite sampling flow proportional? Yes No NA NE ❑ ❑ ■ ❑ Page# 4 Permit: NCO024252 Owner -Facility: Northeast WWTP Inspection Date: 03/13/2020 Inspection Type: Compliance Evaluation Effluent Sampling Yes No NA NE Is sample collected below all treatment units? 0 ❑ ❑ ❑ Is proper volume collected? 0 ❑ ❑ ❑ Is the tubing clean? 0 ❑ ❑ ❑ # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees 0 ❑ ❑ ❑ Celsius)? Is the facility sampling performed as required by the permit (frequency, sampling type 0 ❑ ❑ ❑ representative)? Comment: The subject permit requires composite and grab effluent samples. The facility has been Previously approved to collect time -based composite samples. The ORC and staff must ensure that the aliquot volume is verified monthly (at minimum) and documented. Upstream / Downstream Sampling Is the facility sampling performed as required by the permit (frequency, sampling type, an( sampling location)? Comment: 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 ■ ❑ ❑ ❑ Yes No NA NE ❑ ❑ ❑ ■ ❑ ❑ ❑ Comment: The wastewater treatment facility appeared to be properly operated and well maintained. Process control measurements were being documented and maintained on -site. The facility is equipped with a telemetry -type alarm system for specific alarm conditions (high water, blower failure, etc.). Bar Screens 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? Yes No NA NE ❑ ■ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Comment: The bar screens will remove large debris: however, smaller debris was observed in the SBRs. The City should continue to investigate upgrades to the screening system including the installation of a fine screening system. Page# 5 Permit: NC0024252 Inspection Date: 03/13/2020 Grit Removal Type of grit removal Owner -Facility: Northeast WWTP Inspection Type: Compliance Evaluation Yes No NA NE a.Manual ❑ b.Mechanical Is the grit free of excessive organic matter? 0 ❑ ❑ ❑ Is the grit free of excessive odor? 0 ❑ ❑ ❑ # Is disposal of grit in compliance? 0 ❑ ❑ ❑ Comment: Screenings and grit are disposed (by a contracted company) at a permitted landfill. Pump Station - Influent Is the pump wet well free of bypass lines or structures? Is the wet well free of excessive grease? Are all pumps present? Are all pumps operable? Are float controls operable? Is SCADA telemetry available and operational? Is audible and visual alarm available and operational? Comment: Flow Measurement - Influent # 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? Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ■ ❑ Comment: The flow meter is calibrated annuallv and was last calibrated on 12/9/19 by Clearwater. Sequencing Batch Reactors Yes No NA NE Type of operation: Is the reactor effluent free of solids? ❑ ❑ ❑ Does minimum fill time correspond to the peak hour flow rate of the facility? ❑ ❑ ❑ Is aeration and mixing cycled on and off during fill? ❑ ❑ ❑ The operator understands and can explain the process? ❑ ❑ ❑ Comment: All four SBR trains were operational and in service. The SBRs are in continuous fill mode. Page# 6 Permit: NC0024252 Inspection Date: 03/13/2020 Owner -Facility: Northeast WWTP Inspection Type: Compliance Evaluation Filtration (High Rate Tertiary) Yes No NA NE Type of operation: Down flow Is the filter media present? ❑ ❑ ❑ Is the filter surface free of clogging? ❑ ❑ ❑ Is the filter free of growth? ❑ ❑ ❑ Is the air scour operational? ❑ ❑ ❑ Is the scouring acceptable? ❑ ❑ ❑ Is the clear well free of excessive solids and filter media? ❑ ❑ ❑ Comment: All five tertiary filters were operational and in service. Disinfection -Liquid Yes No NA NE Is there adequate reserve supply of disinfectant? 0 ❑ ❑ ❑ (Sodium Hypochlorite) Is pump feed system operational? 0 ❑ ❑ ❑ Is bulk storage tank containment area adequate? (free of leaks/open drains) 0 ❑ ❑ ❑ Is the level of chlorine residual acceptable? 0 ❑ ❑ ❑ Is the contact chamber free of growth, or sludge buildup? 0 ❑ ❑ ❑ Is there chlorine residual prior to de -chlorination? 0 ❑ ❑ ❑ Comment: De -chlorination Yes No NA NE Type of system ? Liquid Is the feed ratio proportional to chlorine amount (1 to 1)? 0 ❑ ❑ ❑ Is storage appropriate for cylinders? ❑ ❑ 0 ❑ # Is de -chlorination substance stored away from chlorine containers? 0 ❑ ❑ ❑ Comment: Are the tablets the proper size and type? ❑ ❑ 0 ❑ Are tablet de -chlorinators operational? ❑ ❑ 0 ❑ Number of tubes in use? 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? 0 ❑ ❑ ❑ If effluent (diffuser pipes are required) are they operating properly? ❑ ❑ 0 ❑ Page# 7 Permit: NC0024252 Inspection Date: 03/13/2020 Owner -Facility: Northeast WWTP Inspection Type: Compliance Evaluation Effluent Pipe Yes No NA NE Comment: The effluent appeared clear with no floatable solids or foam. The receiving stream did not appear to be negatively impacted. 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 backuD aenerator is tested weekly (bv City staff) and Dlaced under load auarterlv (at a minimum). A contracted company services the generator annually. The generator will power all critical treatment processes except tertiary filters and sludge thickener and pumps. The facility staff must ensure to document all operation/maintenance activities performed on the generator. Solids Handling Equipment Yes No NA NE Is the equipment operational? 0 ❑ ❑ ❑ Is the chemical feed equipment operational? M ❑ ❑ ❑ Is storage adequate? 0 ❑ ❑ ❑ 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? 0 ❑ ❑ ❑ Comment: The facilitv is eauiDDed with two sludae storaae tanks (WAS and thickened sludae) and a gravity belt sludge thickener. The thickener was operational: however, not in service during the inspection. The thickener is placed into operation on Tuesdays and Thursdays. Thickened sludge is transported (by City staff) to the Regional Compost facility in Catawba County for final treatment/disposal. The City also transports a select number of loads from a dedicated gravity sludge thickener located at the City of Newton's WWTP for disposal at the Regional Compost facility. Page# 8