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Home My WebLink AboutNC0037834_Compliance Evaluation Inspection_20180201N1_ rlf Water Resources Environmental Quality February 1, 2018 City of Winston-Salem Attn• Courtney Driver, Director of Utilities P.O. Box 2511 Winston-Salem, NC 27102-2511 Subject: Compliance Evaluation Inspections Dear Ms. Driver: ROY COOPER Governor MICHAEL S. REGAN Secretary LINDA CULPEPPER Interim Director Archie Elledge Wastewater Treatment Plant, NPDES Permit NC0037834; and Muddy Creek WastewatersTreatment,Plant, NPDES Permit NC0050342 RECEI�/E®/��®�� City of Winston-Salem Forsyth County FEB 0 5 2018 Water Resources Permitting Section Ron Boone of the Winston-Salem Regional Office of the NC Division of Water Resources (DWR or the Division) conducted compliance evaluation inspections (CEI) of the Archie Elledge Wastewater Treatment Plant (NC0037834) and the Muddy Creek Wastewater Treatment Plant (NC0050342) on September 19, 2017. We apologize for the belatedness of this letter and the attached reports and trust that both plants still maintain the same level of compliance that Mr. Boone observed at the time of the Inspections. The assistance and cooperation of Jon Southern, Keith Jones, and Bonnie McKee, during these inspections, was greatly appreciated. Inspection checklists are attached for your records and inspection findings are summarized below. Archie Elledge Wastewater Treatment Plant, NPDES Permit NCO037834 General Information The WWTP is located at 2801 Griffith Road in Winston Salem, Forsyth County, NC. The permit authorizes the City to operate this 30 MGD WWTP, which consists of bar screens, grit basins, primary clarifiers, aeration basins, final clarifiers, sodium hypochlorite and bisulfite feed for disinfection and dechlorination, lime/magnesium hydroxide blend and caustic feed for alkalinity control, centrifuges with screw conveyors, sludge digestion, polymer and iron salt feed, odor control systems, a sludge drying facility, waste sludge lagoons and instrumented flow measurement The permit authorizes the City to discharge treated effluent from the plant via outfall 001 into Salem Creek, this section of wh,ch is currently classified as Class C waters in the Yadkin Pee -Dee river basin. Site Review As was also the case during the previous inspection, Mr. Southern and his crew continue to do an outstanding job operating and maintaining the plant. Mr. Boone noted no issues or discrepancies .`Nothing Compares - State of North Carolina I Environmental Quality 450 W Hanes Mill Road, Suite 300, Winston-Salem, North Ca-olma 27105 Phone 336-776-98001 FAX 336-776-9797 Documentation Review All documentation was reviewed. Mr. Southern and his staff, as well as Bonnie McKee and the laboratory staff, have done an excellent job of documenting the operation and maintenance of the plant and laboratory operations, as required by the permit; this includes operations/maintenance and operator visitation logs, discharge monitoring reports, laboratory and field laboratory records, chains of custody, etc. Muddy Creek Wastewater Treatment Plant, NPDES Permit NCO050342 General Information The WWTP is located at 4561 Copper Road in Winston Salem, Forsyth County, NC. The permit authorizes the City to operate this 21 MGD WWTP, which consists of bar screens, grit chambers, primary clarification, three aeration basins with fine bubble diffusers, a hydrated lime silo, secondary clarification, chlorination, dechlorination, instrumented flow measurement, anaerobic sludge digesters, a gravity thickener, sludge storage lagoons, a belt filter press, a carbon pellet odor scrubber, two emergency generators, an effluent/flood control pump station, and solids blending tanks. The permit authorizes the City to discharge treated effluent from this facility into the Yadkin River (outfall 001) or, under flood conditions, into Muddy Creek (outfall 002). Both receiving waters are currently classified as WS -IV (water supply) waters in the Yadkin Pee -Dee River Basin. Site Review As was the case during the previous inspection, Mr. Jones and his crew continue to do an outstanding job operating and maintaining the plant. Mr. Boone noted no problems, discrepancies, violations, etc., during the site review portion of the inspection. Documentation Review All documentation was reviewed. Mr. Jones and his staff, as well as Bonne McKee and the laboratory staff, have done an excellent job of documenting the operation and maintenance of the plant and laboratory operations, as required by the permit; this includes operations/maintenance and operator visitation logs, discharge monitoring reports, laboratory and field laboratory records, chains of custody, etc. The Division greatly appreciates the City's efforts to effectively and efficiently operate and maintain the Elledge and Muddy Creek WWTPs. Mr. Southern and Mr. Jones, and their crews, as well as Bonnie McKee and the laboratory staff, have done an excellent job and should be commended for their efforts. If you have any questions regarding the inspection or this letter, or if we may be of any further assistance to you, please feel free to call Mr. Boone or me at (336)776-9800. Thank you for your attention to this matter. Sincerely, Sherri V. Knight, PE Regional Supervisor Water Quality Regional Operations Division of Water Resources Attachments: 1. BIMS Inspection Report, Archie Elledge NPDES Permit NC0037834 2. BIMS Inspection Report, Muddy Creek NPDES Permit NC0050342 CC: WSRO - SWP Central Files NPDES Unit City of Winston-Salem Attn: Jon Southern —.ORC Archie Elledge WWTP 2801 Griffith Road Winston-Salem, NC 27103 City of Winston-Salem Attn: Keith Jones — ORC Muddy Creek WWTP 2801 Griffith Road Winston-Salem, NC 27103 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 E 2 15 I 3 I NC0050342 I11 12 17/09/19 17 18 I C I 19 1 G I 20I I 211 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1=1 1 1 1 11 1 1 1 1 "6 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA Reserved 67 70 1 1 71 IFacility1 72 1 ti J 731 1 174 75 80 LJ L LJ 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 permit Number) 11 QOAM 17/09/19 17/09/01 Muddy Creek WWTP 4561 Cooper Rd Exit Time/Date Permit Expiration Date Winston Salem NC 27102 01 OOPM 17/09/19 22/06/30 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data 111 Jon Madison Southern/ORC/336-397-7600/ Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Ozie K Jones,2799 GriffitliRd Winston Salem NC No 271036417//336-397-7679/3366594320 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 Ron Boone WSRO WQ//336-776-9690/ Signature of Management Q A ReviewerAgency/Office/Phone and Fax Numbers Date EPA Form 3560-3 (Rev 9-94) Previous editions a e obsolete Page# NPDES yr/mo/day Inspection Type 31 NCO050342 I11 12 17/09/9 17 18 I „ I Section D• Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Report not sent at the time of the inspection due to an oversight by the inspector. No non-compliance was noted during the inspection. Please refer to the attached inspection summary letter. Plant continues to undergo extensive upgrade which has been ongoing for a several years now. Processes have changed some but plant description is still quite accurate. Page# - Permit: NC0050342 Inspection Date: 09/19/2017 Owner - Facility- Muddy Cr--ek VWUrP Inspection Type: Compliance Evaluation # Is flow meter used for reporting? ❑ 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? N ❑ ❑ ❑ Are float controls operable? 0 ❑ ❑ ❑ Is SCADA telemetry available and operational? N ❑ ❑ ❑ Is audible and visual alarm available and operational? N ❑ ❑ ❑ Comment. None 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? ❑ ❑ 110 ❑ Comment. None 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? ❑ ❑ ❑ Comment- None 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? ❑ ❑ ❑ # Is disposal of grit in compliance? 0 ❑ ❑ ❑ Page# 3 Permit- NC0050342 Owner - Facility: Muddy Creek UWVTP Inspection Date: 09/19/2017 Inspection Type: Compliance Evaluation Grit Removal Yes No NA NE Comment. None Grease Removal Yes No NA NE # Is automatic grease removal present? N ❑ ❑ ❑ Is grease removal operating properly? N ❑ ❑ ❑ Comment None Primary Clarifier Yes No NA NE Is the clarifier free of black and odorous wastewater? 0 ❑ ❑ ❑ Is the site free of excessive buildup of solids in center well of circular clarifier? ❑ ❑ N ❑ Are weirs level? r 0 ❑ ❑ ❑ Is the site free of weir blockage? 0 ❑ ❑ ❑ Is the site free of evidence of short-circuiting? 0 ❑ ❑ ❑ Is scum removal adequate? N ❑ ❑ ❑ Is the site free of excessive floating sludge? 0 ❑ ❑ ❑ Is the drive unit operational? S ❑ ❑ ❑ Is the sludge blanket level acceptable? 0 ❑ ❑ ❑ Is the sludge blanket level acceptable? (Approximately % of the sidewall depth) 0 ❑ ❑ ❑ Comment. None Aeration Basins Yes No NA NE Mode of operation Ext. Air Type of aeration system Diffused Is the basin free of dead spots? 0 ❑ ❑ ❑ Are surface aerators and mixers operational? N ❑ ❑ ❑ Are the diffusers operational? 0 ❑ ❑ ❑ Is the foam the proper color for the treatment process? 0 ❑ ❑ ❑ Does the foam cover less than 25% of the basin's surface? 0 ❑ ❑ ❑ Is the DO level acceptable? E ❑ ❑ ❑ Is the DO level acceptable?(1.0 to 3.0 mg/1) N ❑ ❑ ❑ Comment: None Pumps -RAS -WAS Yes No NA NE Page# 4 Permit: NC0050342 Inspection Date: 09/19/2017 Owner - Facility: Muddy Creek WWTP inspection Type: Compliance Evaluation Is the clarifier free of black and odorous wastewater? 0 ❑ 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- None Secondary Clarifier Yes No NA NE Is the clarifier free of black and odorous wastewater? 0 ❑ ❑ ❑ 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? N ❑ ❑ ❑ Is the site free of evidence of short-circuiting? 0 ❑ ❑ ❑ Is scum removal adequate? N ❑ ❑ ❑ Is the site free of excessive floating sludge? E ❑ ❑ ❑ Is the drive unit operational? 0 ❑ ❑ ❑ Is the return rate acceptable (low turbulence)? N ❑ ❑ ❑ Is the overflow clear of excessive solids/pin floc? N ❑ ❑ ❑ Is the sludge blanket level acceptable? (Approximately % of the sidewall depth) E ❑ ❑ ❑ Comment None Pump Station - Effluent Yes No NA NE Is the pump wet well free of bypass lines or structures? 0 ❑ ❑ ❑ Are all pumps present? ❑ ❑ ❑ Are all pumps operable? ❑ ❑ ❑ Are float controls operable? 0 ❑ ❑ ❑ Is SCADA telemetry available and operational? 0 ❑ ❑ ❑ Is audible and visual alarm available and operational? N ❑ ❑ ❑ Comment None Flow Measurement - Effluent Yes No NA NE # Is flow meter used for reporting? 0 ❑ ❑ ❑ Is flow meter calibrated annually? ❑ ❑ ❑ Is the flow meter operational? ❑ ❑ ❑ (If units are separated) Does the chart recorder match the flow meter? 0 ❑ ❑ ❑ Page# 5 Permit NC0050342 Owner - Facility: Muddy Creek VWVrP Inspection Date. 09/19/2017 Inspection Type. Compliance Evaluation Flow Measurement - Effluent Yes No NA NE Comment- None 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? E ❑ ❑ ❑ Is the contact chamber free of growth, or sludge buildup? 0 ❑ ❑ ❑ Is there chlorine residual prior to de -chlorination? ❑ ❑ ❑ N Commert. None De -chlorination Yes No NA NE Type of system ? Liquid ❑ ❑ ❑ Is the feed ratio proportional to chlorine amount (1 to 1)? ❑ ❑ ❑ N 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 None Are tablet ce-chlonnators operational? ❑ ❑ ❑ Number of tubes in use? Comment: None 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? # Is gas stored on site? ❑ ❑ ❑ If effluent (diffuser pipes are required) are they operating properly? ❑ ❑ N ❑ Comment: None Anaerobic Digester Yes No NA NE Type of operation: Floating cover Is the capacity adequate? 0 ❑ ❑ ❑ # Is gas stored on site? N ❑ ❑ ❑ Is the digester(s) free of tilting covers? N ❑ ❑ ❑ Page# 6 Permit: NC0050342 Owner - Facility Muddy Creek VWVrP Is containment adequate? 0 ❑ Inspection Date: 09/19/2017 Inspection Type. Compliance Evaluation Is storage adequate? 0 ❑ Anaerobic Digester Yes No NA NE Is the gas burner operational? 0 ❑ ❑ ❑ Is the digester heated? 0 ❑ ❑ ❑ Is the temperature maintained constantly? 0 ❑ ❑ ❑ Is tankage available for properly waste sludge? 0 ❑ ❑ ❑ Comment None 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? M ❑ ❑ ❑ Comment None Solids Handling Equipment Yes No NA NE Is the equipment operational? ❑ ❑ M ❑ 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? ❑ ❑ M ❑ Is the site free of sludge buildup on belts and/or rollers of filter press? ❑ ❑ M ❑ Is the site free of excessive moisture In belt filter press sludge cake? ❑ ❑ M ❑ The facility has an approved sludge management plan? ❑ ❑ 0 ❑ Comment Sludge pumped to Elledge plant 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? M ❑ ❑ ❑ # Are there any special conditions for the permit? ❑ M ❑ ❑ Is access to the plant site restricted to the general public? 0 ❑ ❑ ❑ Is the Inspector granted access to all areas for Inspection? M ❑ ❑ ❑ Comment None Laboratory Yes No NA NE Are field parameters performed by certified personnel or laboratory? M ❑ ❑ ❑ Page# 7 Permit NCO050342 Owner - Facility Muddy Creek VWVTP Yes No NA NE # Is composite sampling flow proportional? N ❑ Inspection Date. 09/19/2017 Inspection Type: Compliance Evaluation ❑ Is sample collected above side streams? N ❑ Laboratory Yes No NA NE Are all other parameters (excluding field parameters) performed by a certified lab? 0 ❑ 1:111 ❑ # Is the facility using a contract lab? M ❑ ❑ ❑ # 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? ❑ ❑ N ❑ Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees? ❑ ❑ 0 ❑ Comment None Influent Sampling Yes No NA NE # Is composite sampling flow proportional? N ❑ ❑ ❑ Is sample collected above side streams? N ❑ ❑ ❑ 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 M ❑ ❑ ❑ Celsius)? Is sampling performed according to the permit? 0 ❑ ❑ ❑ Comment- None Effluent Sampling Yes No NA NE Is composite sampling flow proportional? 0 ❑ ❑ ❑ Is sample collected below all treatment units? M ❑ ❑ ❑ 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 ❑ ❑ ❑ Celsius)? Is the facility sampling performed as required by the permit (frequency, sampling type 0 ❑ ❑ ❑ representative)? Comment None Upstream / Downstream Sampling Yes No NA NE Is the facility sampling performed as required by the permit (frequency, sampling type, and ❑ ❑ ❑ sampling location)? Comment Sampling requirement waived due to participation in the Yadkin Pee Dee River Basin Association Page# 8 r Permit: NCO050342 Owner - Facility Muddy Creek VWVTP E ❑ ❑ ❑ Inspection Date 09/19/2017 Inspection Type. Compliance Evaluation N ❑ ❑ ❑ 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? N ❑ ❑ ❑ Is the chain -of -custody complete? 0 ❑ ❑ ❑ 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? 0 ❑ ❑ ❑ Has the facility submitted Its annual compliance report to users and DWQ? 0 ❑ ❑ ❑ (If the facility Is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator 0 ❑ ❑ ❑ on each shift? Is the ORC visitation log available and current? E ❑ ❑ ❑ Is the ORC certified at grade equal to or higher than the facility classification? N ❑ ❑ ❑ Is the backup operator certified at one grade less or greater than the facility classification? 0 ❑ ❑ ❑ Is a copy of the current NPDES permit available on site? N ❑ ❑ ❑ Facility has copy of previous year's Annual Report on file for review? N ❑ ❑ ❑ Comment None 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 None Page# 9