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Home My WebLink AboutNC0024970_Compliance Evaluation Inspection_20180410United 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 I 2 15 I 3 I NCO024970 111 12 I 18/03/29 I17 18 I S i 19 LG] i 201 I 211111 1 1 1 1 1 111 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 111 1 1 1 1 1 166 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA ----------------------Reserved------------------- 67 2.0 70 Id I 71 [ I 72 I I 73 �74 751 1 1 1 1 1 1 180 I—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 oermit Number) 09:15AM 18/03/29 17/10/01 McAlpine Creek WWTP 12701 Lancaster Hwy Exit Time/Date Permit Expiration Date Pineville NC 28134 04:15PM 18/03/29 21/06/30 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data Sandy Kim Neely/ORC/704-542-0736/ Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Jacqueline A Jarrell,5100 Brookshire Blvd Charlotte NC 282163371/Operations Chief/704-336-5433/ Yes 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 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 D"' Signedby: MRO WQ//704-663-1699 Ext.2192/ 4/10/2018 �PiY 24 A:6)96D90CC3437... Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date W. Corey Basinger MRO WQ//704-235-2194/ EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. DocuSigned by: 4/11/2018 Page# EA14CC681AF27425... NPDES yr/mo/day Inspection Type NC0024970 111 121 18/03/29 1 17 18 ICI Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) On-site Representatives: The following Charlotte Water personnel were in attendance during the inspection: Ms. Jacqueline Jarrell, Mr. Kim Neely, Mr. Joseph Lockler, Mr. Keith Purgason, Mr. Eric Knabb, Mr. Shannon Sypolt, and Mr. Doug Wise. Page# Permit: NCO024970 Owner - Facility: McAlpine Creek WWTP Inspection Date: 03/29/2018 Inspection Type: Compliance Evaluation Yes No NA NE Are records kept and maintained as required by the permit? 0 ❑ Permit Yes No NA NE (If the present permit expires in 6 months or less). Has the permittee submitted a new ❑ ❑ 0 ❑ application? 0 ❑ ❑ ❑ Is the facility as described in the permit? 0 ❑ ❑ ❑ # Are there any special conditions for the permit? E ❑ ❑ ❑ Is access to the plant site restricted to the general public? 0 ❑ ❑ ❑ Is the inspector granted access to all areas for inspection? 0 ❑ ❑ ❑ Comment: The last compliance evaluation inspection was performed at the facility on 5/12/16 by DWR staff. Record Keeping Yes No NA NE Are records kept and maintained as required by the permit? 0 ❑ ❑ ❑ Is all required information readily available, complete and current? 0 ❑ ❑ ❑ Are all records maintained for 3 years (lab. reg. required 5 years)? 0 ❑ ❑ ❑ Are analytical results consistent with data reported on DMRs? 0 ❑ ❑ ❑ Is the chain -of -custody complete? ❑ ❑ ❑ ❑ Dates, times and location of sampling Monitoring Reports (DMRs) were reviewed for the period January 2017 through December 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? ❑ ❑ ❑ 0 Comment: The records reviewed during the inspection were organized and well maintained. Discharge Monitoring Reports (DMRs) were reviewed for the period January 2017 through December 2017. No effluent limit violations were reported and all monitoring frequencies were correct. Laboratory Yes No NA NE Page# 3 Permit: NCO024970 Owner - Facility: McAlpine Creek WWTP Yes No NA NE # Is composite sampling flow proportional? 0 ❑ Inspection Date: 03/29/2018 Inspection Type: Compliance Evaluation ❑ Is sample collected above side streams? 0 ❑ 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)? 0 ❑ ❑ ❑ 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 Charlotte Water Environmental Laboratory Services Certification #192. Prism Laboratories (low level mercury and phenols) ETT (toxicity), and R&A Labs (toxicity) have also been contracted to provide analytical support. 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 0 ❑ ❑ ❑ Celsius)? Is sampling performed according to the permit? 0 ❑ ❑ ❑ Comment: The subject permit requires BOD and TSS composite samples. Aliquot verifications are Performed (by operations staff) five days per week (minimum) and documented. The composite sampler was collecting over 100 mis. per aliquot and the internal temperature was less than four degrees Celsius at the time of the inspection. 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 ■ ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ■ ❑ ❑ ❑ N ❑ ❑ ❑ Comment: The subject permit requires composite and grab effluent samples. Aliquot verifications are Performed (by operations staff) five days per week (minimum) and documented. The composite sampler was collecting over 100 mis. per aliquot and the internal temperature was less than four degrees Celsius at the time of the inspection. Page# 4 Permit: NCO024970 Owner - Facility: McAlpine Creek WWTP Inspection Date: 03/29/2018 Inspection Type: Compliance Evaluation Effluent Sampling Yes No NA NE Upstream / Downstream Sampling Yes No NA NE Is the facility sampling performed as required by the permit (frequency, sampling type, and 0 ❑ ❑ ❑ sampling location)? Comment: 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 0 ❑ ❑ ❑ Solids, pH, DO, Sludge Judge, and other that are applicable? Comment: The wastewater treatment facilitv aDDeared to be Droaerly operated and well maintained The ORC and staff incorporate a comprehensive process control program with all measurements being properly 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 fourteen separate locations throughout the wastewater facility. The on-site operators are also notified of alarm conditions via paging system. Odor control systems are connected to selected treatment processes/units including_ influent pump station, primary clarifiers, sludge thickening/dewatering, and Residual Management Facility. Bar Screens Yes No NA NE Type of bar screen a.Manual ❑ b.Mechanical 0 Are the bars adequately screening debris? 0 ❑ ❑ ❑ Is the screen free of excessive debris? 0 ❑ ❑ ❑ Is disposal of screening in compliance? 0 ❑ ❑ ❑ Is the unit in good condition? 0 ❑ ❑ ❑ Comment: Grit Removal Yes No NA NE Type of grit removal a.Manual ❑ b.Mechanical Is the grit free of excessive organic matter? ❑ ❑ ❑ Is the grit free of excessive odor? 0 ❑ ❑ ❑ # Is disposal of grit in compliance? 0 ❑ ❑ ❑ Page# 5 Permit: NC0024970 Owner - Facility: McAlpine Creek WWTP Is the basin aerated? 0 ❑ Inspection Date: 03/29/2018 Inspection Type: Compliance Evaluation Is the basin free of bypass lines or structures to the natural environment? 0 ❑ Grit Removal Yes No NA NE Comment: Screenings and grit are disposed by a contracted company at the CMS Landfill in Cabarrus 0 ❑ County. ❑ Are all pumps present? 0 ❑ 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 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: Flow Measurement - Influent 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 meter has been calibrated annually by CITI, LLC. Primary Clarifier Yes No NA NE Is the clarifier free of black and odorous wastewater? 0 ❑ ❑ ❑ Page# 6 Permit: NCO024970 Inspection Date: 03/29/2018 Owner - Facility: McAlpine Creek WWTP Inspection Type: Compliance Evaluation Primary Clarifier 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) Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Comment: All eight primaries (4 - North Train and 4 - South Train) are covered and were in service. Nutrient Removal # Is total nitrogen removal required? # Is total phosphorous removal required? Type # Is chemical feed required to sustain process? Is nutrient removal process operating properly? Comment: Phosphorus levels are reduced biologically and chemically (ferric chloride). 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) Yes No NA NE ■ ❑ ❑ ❑ ■ ❑ 1:11:1 ❑ Biological ■ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ Ext. Air Diffused ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ Comment: All twenty-eight aeration basins (12 — North Train and 16 — South Train) were in service. Magnesium hydroxide is added to maintain appropriate alkalinity/pH levels. Secondary Clarifier Is the clarifier free of black and odorous wastewater? Yes No NA NE ■ ❑ ❑ ❑ Page# 7 Permit: NCO024970 Owner - Facility: McAlpine Creek WWTP Are pumps in place? 0 ❑ Inspection Date: 03/29/2018 Inspection Type: Compliance Evaluation Are pumps operational? 0 ❑ Secondary Clarifier Yes No NA NE Is the site free of excessive buildup of solids in center well of circular clarifier? 0 ❑ ❑ ❑ Are weirs level? 0 ❑ ❑ ❑ Is the site free of weir blockage? 0 ❑ ❑ ❑ Is the site free of evidence of short-circuiting? 0 ❑ ❑ ❑ Is scum removal adequate? 0 ❑ ❑ ❑ Is the site free of excessive floating sludge? 0 ❑ ❑ ❑ Is the drive unit operational? 0 ❑ ❑ ❑ Is the return rate acceptable (low turbulence)? 0 ❑ ❑ ❑ Is the overflow clear of excessive solids/pin floc? 0 ❑ ❑ ❑ Is the sludge blanket level acceptable? (Approximately 1/4 of the sidewall depth) 0 ❑ ❑ ❑ Comment: All sixteen secondaries (6 - North Train and 10 - South Train) were in service. 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? 0 ❑ ❑ ❑ Comment: Filtration (High Rate Tertiary) Yes No NA NE Type of operation: Down flow ❑ ❑ Is the filter media present? 0 ❑ ❑ ❑ 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 nineteen tertiary sand filters were 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 ❑ ❑ ❑ Page# 8 Permit: NC0024970 Inspection Date: 03/29/2018 Owner - Facility: McAlpine Creek WWTP Inspection Type: Compliance Evaluation Disinfection -Liquid Yes No NA NE Is the contact chamber free of growth, or sludge buildup? 0 ❑ ❑ ❑ Is there chlorine residual prior to de -chlorination? 0 ❑ ❑ ❑ Comment: Aqueous sodium hypochlorite is used for disinfection. Both chlorine contact chamber trains were in service. 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 ❑ ❑ ❑ Are the tablets the proper size and type? ❑ ❑ 0 ❑ Comment: Aqueous sodium bisulfite is used for dechlorination. Are tablet de -chlorinators operational? ❑ ❑ ❑ Number of tubes in use? Comment: Chemical Feed Yes No NA NE Is containment adequate? 0 ❑ ❑ ❑ Is storage adequate? 0 ❑ ❑ ❑ Are backup pumps available? 0 ❑ ❑ ❑ Is the site free of excessive leaking? 0 ❑ ❑ ❑ Comment: 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 meter is calibrated quarterly and was last calibrated on 1/22/18 by CITI, LLC. 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 ❑ ❑ ❑ Page# 9 Permit: NCO024970 Inspection Date: 03/29/2018 Owner - Facility: McAlpine Creek WWTP Inspection Type: Compliance Evaluation Effluent Pipe Yes No NA NE If effluent (diffuser pipes are required) are they operating properly? ❑ ❑ 0 ❑ Comment: The effluent appeared clear with no floatable solids and foam (entrained air). The receiving stream did not appear to be negatively impacted. Anaerobic Digester Yes No NA NE Type of operation: Fixed cover ❑ 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: The facility is equipped with ten digesters (8 — primary/fixed cover and 2 — storage/floating cover). Only one of the floating cover digesters was in service. Digester gas (non -flared) is connected to a scrubber system. The Combined Heat & Power (CHP) system was operational and in service. Solids Handling Equipment Yes No NA NE Is the equipment operational? 0 ❑ ❑ ❑ Is the chemical feed equipment operational? 0 ❑ ❑ ❑ Is storage adequate? 0 ❑ ❑ ❑ Is the site free of high level of solids in filtrate from filter presses or vacuum filters? ❑ ❑ 0 ❑ Is the site free of sludge buildup on belts and/or rollers of filter press? ❑ ❑ 0 ❑ Is the site free of excessive moisture in belt filter press sludge cake? ❑ ❑ 0 ❑ The facility has an approved sludge management plan? E ❑ ❑ ❑ Comment: The facilitv is eauiDDed with four aravitv thickeners (covered) and six centrifuaes (3 thickening and 3 — dewatering). Two of the gravity thickeners was in service and one of the dewatering centrifuges was in the process of being repaired. The centrate was free of high level of solids and the sludge cake was free of excessive moisture. The primary and waste activated sludges from the Sugar Creek WWTP are processed at this facility. Dewated bio -solids are land applied by a contracted company (Svnagro) under the authority of Permit No. W00000057. Standby Power Is automatically activated standby power available? Yes No NA NE ■ ❑ ❑ ❑ Page# 10 Permit: NC0024970 Inspection Date: 03/29/2018 Owner - Facility: McAlpine Creek WWTP Inspection Type: Compliance Evaluation Standby Power Yes No NA NE Is the generator tested by interrupting primary power source? 0 ❑ ❑ ❑ Is the generator tested under load? 0 ❑ ❑ ❑ Was generator tested & operational during the inspection? ❑ ❑ ❑ 0 Do the generator(s) have adequate capacity to operate the entire wastewater site? 0 ❑ ❑ ❑ Is there an emergency agreement with a fuel vendor for extended run on back-up power? 0 ❑ ❑ ❑ Is the generator fuel level monitored? 0 ❑ ❑ ❑ Comment: The facility is equipped with six backup generators. Generators are placed under load monthly and serviced by a contracted company (Cummings) quarterly. Page# 11