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Home My WebLink AboutNC0021903_Compliance Evaluation Inspection_20201204DocuSign Envelope ID: D7218DDA-4EA0-4E50-828A-338E1583FD94 ROY COOPER Governor MICHAEL S. REGAN Secretary S. DANIEL SMITH Director Scotty Summerlin Town of Warsaw PO Box 464 Warsaw, NC 28398-0464 Subject: Dear Mr. Summerlin, NORTH CAROLINA Environmental Quality December 8, 2020 NPDES Compliance Inspection Report Warsaw WWTP NPDES Permit No. NCO021903 Duplin County A compliance inspection of the Warsaw Wastewater Treatment Plant was conducted on December 4, 2020, to verify that the facility is operating in compliance with the conditions and limitations specified in NPDES Permit NC0021903. The DWR would like to thank the Town's staff for their time, assistance, and expertise provided during the inspection. There were no compliance issues observed during the inspection and therefore, a response to this inspection report is not required. The findings and comments noted during this inspection are provided in the enclosed copy of the "Water Compliance Inspection Report". If you have any questions concerning this report, you may contact the inspector at (910) 796-7215 or via email at chad.cobumkncdenr.gov . Sincerely, DocuSigned by: Toµ 'lln� t oti 7F141E73B6F3456.- Tom Tharrington, Assistant Regional Supervisor Water Quality Regional Operations Section Wilmington Regional Office Division of Water Resources, NCDEQ Enclosure Cc: Wilmington Regional Office Files Laserfiche D E Qbi�� North Carolina Department of Environmental Quality I Division of Water Resources Washington Regional Office 1 943 Washington Square Mall I Washington, North Carolina 27889 vOry rN Cx:40:.itiA � N. a I E�.w��WQa A� /� 252.946.6481 DocuSign Envelope ID: D7218DDA-4EAO-4E50-828A-338E1583FD94 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 I 2 u 3 I NCO021903 I11 121 20/12/04 I17 18I � I 19 I s I 201 I 211IIIII 111111III II III III1 I I IIIII IIIIIIIII II r6 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA ---------------------- Reserved ------------------- 67 I 72 I ni I 71 I 74 79 I I I I I I I80 701 I 71 I LL -1 I I LJ 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 Dermit Number) 10:OOAM 20/12/04 17/08/01 Warsaw WWTP 384 E Best St Exit Time/Date Permit Expiration Date Warsaw NC 28398 12:30PM 20/12/04 22/01/31 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data Gregory Dale Hughes/ORC/910-293-7814/ Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Scotty Summerlin,PO Box 464 Warsaw NC 283980464/Town Manager/910-293-7817/ 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 Si 00igAeh Wector(s) Agency/Office/Phone and Fax Numbers Date Jennifer C Rya �t,bldiU r �MA, DWR/Non Discharge Compliance Unit/910-796-7387/ 12/8/2020 Tyler G Benson Docus9y ed by16547c... oo..s9neaby: DWR/WIRO WQ/910-796-7336/ 12/8/2020 Chad Cobu n p/ p r,(,,, 6,,,SbttiDWR/WIRO WQ/910-796-7379/ 12/8/2020 Signature of WW8rrfi GWReviewer Agency/Office/Phone and Fax Numbers Date DocuSigned by: WQ/ - - / 12/8/2020 Tom Tharringt n 'Cuµ �Axr�.DWR/WIRO ( \—ZF64)WB6F.3456 EPA Form 3560-3 Rev �J 4 FPrevious editions are obsolete. Page# DocuSign Envelope ID: D7218DDA-4EA0-4E50-828A-338E1583FD94 NPDES yr/mo/day Inspection Type NCO021903 I11 12I 20/12/04 117 18 i c i Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) The facility was inspected by Tyler Benson, Jennifer Ryan,and Chad Coburn on December 4, 2020. ORC Greg Hughes was present on -site and the DWR greatly appreciates his assistance in this compliance evaluation inspection. This facility is compliant with permit NC0021903 with no issues being found. Page# DocuSign Envelope ID: D7218DDA-4EA0-4E50-828A-338E1583FD94 Permit: NCO021903 Owner -Facility: Warsaw WWTP Inspection Date: 12/04/2020 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: This facility is currently undergoing construction for improvements. 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? 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? ❑ ❑ ❑ 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 ❑ ❑ 0 ❑ 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? 0 ❑ ❑ ❑ Facility has copy of previous year's Annual Report on file for review? ❑ ❑ ❑ Comment: Stan Miller is the backup ORC #1230 WW-3 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? M ❑ ❑ ❑ Page# 3 DocuSign Envelope ID: D7218DDA-4EA0-4E50-828A-338E1583FD94 Permit: NCO021903 Owner -Facility: Warsaw WWTP Inspection Date: 12/04/2020 Inspection Type: Compliance Evaluation Laboratory Yes No NA NE # 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: This facility is field lab certified and current (2020). Vann Lab does the laboratory analyses for the Dermittee. Influent Sampling Yes No NA NE # Is composite sampling flow proportional? 0 ❑ ❑ ❑ Is sample collected above side streams? 0 ❑ ❑ ❑ Is proper volume collected? M ❑ ❑ ❑ 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: Sample temperature was at 4°C during inspection. 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? 0 ❑ ❑ ❑ Is disposal of screening in compliance? 0 ❑ ❑ ❑ Is the unit in good condition? 0 ❑ ❑ ❑ Comment: The mechanical bar screen is used as primary, with the manual bar screen used as the backup. Grit Removal Yes No NA NE Type of grit removal a.Manual ❑ b.Mechanical Is the grit free of excessive organic matter? ❑ ❑ 0 ❑ Is the grit free of excessive odor? ❑ ❑ 0 ❑ Page# 4 DocuSign Envelope ID: D7218DDA-4EA0-4E50-828A-338E1583FD94 Permit: NCO021903 Owner -Facility: Warsaw WWTP Inspection Date: 12/04/2020 Inspection Type: Compliance Evaluation Grit Removal # Is disposal of grit in compliance? Yes No NA NE ❑ ❑ ■ ❑ Comment: The aerated grit removal is currently not in use at this time due to issues with the blowers. Per the ORC, the removal system has never worked very well and only removed a small amount when it was in use. 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: Effluent is used for reporting. Calibrated January 17, 2020 by MAB (Clearwater Inc.) 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: Calibrated January 17, 2020 by MAB (ClearWater Inc.) 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: Process control parameters are sent to Vann Labs. 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: Page# 5 DocuSign Envelope ID: D7218DDA-4EA0-4E50-828A-338E1583FD94 Permit: NCO021903 Owner -Facility: Warsaw WWTP Inspection Date: 12/04/2020 Inspection Type: Compliance Evaluation Filtration (High Rate Tertiary) Yes No NA NE Aerobic Digester Yes No NA NE Is the capacity adequate? 0 ❑ ❑ ❑ Is the mixing adequate? 0 ❑ ❑ ❑ Is the site free of excessive foaming in the tank? 0 ❑ ❑ ❑ # Is the odor acceptable? 0 ❑ ❑ ❑ # Is tankage available for properly waste sludge? 0 ❑ ❑ ❑ Comment: The facility has an aerobic digester and an aerobic holding tank. 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? ❑ 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'/4 of the sidewall depth) 0 ❑ ❑ ❑ Comment: Sludge Judge was used on site, with a reading of approximately 2'. Clarifiers #3 and #4 are currently in use, with parts on order to repair the drive units. Clarifiers #1 and #2 are not operational. Oxidation Ditches Yes No NA NE Are the aerators operational? 0 ❑ ❑ ❑ Are the aerators free of excessive solids build up? 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? ❑ 0 ❑ ❑ Are settleometer results acceptable (> 30 minutes)? ❑ ❑ ❑ Is the DO level acceptable?(1.0 to 3.0 mg/1) ❑ 0 ❑ ❑ Are settelometer results acceptable?(400 to 800 ml/I in 30 minutes) 0 ❑ ❑ ❑ Page# 6 DocuSign Envelope ID: D7218DDA-4EA0-4E50-828A-338E1583FD94 Permit: NCO021903 Owner -Facility: Warsaw WWTP Inspection Date: 12/04/2020 Inspection Type: Compliance Evaluation Oxidation Ditches Yes No NA NE Comment: ADDroximately 510 ml/I for the settelometer results. DO level was aDDroximately 6.0 ma/I during Winter season. There is a total of 3 oxidation ditches, with one being used as a "equalization basin" and can be used if flow increases. 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 ❑ ❑ ❑ Drying Beds Yes No NA NE Is there adequate drying bed space? 0 ❑ ❑ ❑ Is the sludge distribution on drying beds appropriate? ❑ ❑ 0 ❑ Are the drying beds free of vegetation? ❑ 0 ❑ ❑ # Is the site free of dry sludge remaining in beds? 0 ❑ ❑ ❑ Is the site free of stockpiled sludge? 0 ❑ ❑ ❑ Is the filtrate from sludge drying beds returned to the front of the plant? 0 ❑ ❑ ❑ # Is the sludge disposed of through county landfill? ❑ 0 ❑ ❑ # Is the sludge land applied? 0 ❑ ❑ ❑ (Vacuum filters) Is polymer mixing adequate? ❑ ❑ 0 ❑ Comment: The drying beds are not used for dying sludge 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? ❑ ❑ ❑ Are all pumps present? 0 ❑ ❑ ❑ Are all pumps operable? 0 ❑ ❑ ❑ Are float controls operable? ❑ ❑ ❑ Is SCADA telemetry available and operational? ❑ ❑ ❑ Is audible and visual alarm available and operational? ❑ ❑ ❑ Comment: Standby Power Yes No NA NE Is automatically activated standby power available? 0 ❑ ❑ ❑ Page# 7 DocuSign Envelope ID: D7218DDA-4EA0-4E50-828A-338E1583FD94 Permit: NCO021903 Owner -Facility: Warsaw WWTP Inspection Date: 12/04/2020 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? ❑ ❑ ❑ 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: Disinfection -Gas Yes No NA NE Are cylinders secured adequately? 0 ❑ ❑ ❑ Are cylinders protected from direct sunlight? 0 ❑ ❑ ❑ Is there adequate reserve supply of disinfectant? 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 ❑ ❑ ❑ Does the Stationary Source have more than 2500 Ibs of Chlorine (CAS No. 7782-50-5)? ❑ ❑ ❑ If yes, then is there a Risk Management Plan on site? ❑ ❑ ❑ If yes, then what is the EPA twelve digit ID Number? (1000- If yes, then when was the RMP last updated? Comment: De -chlorination Yes No NA NE Type of system ? Gas 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? 0 Comment: Effluent Sampling Yes No NA NE Page# 8 DocuSign Envelope ID: D7218DDA-4EA0-4E50-828A-338E1583FD94 Permit: NCO021903 Owner -Facility: Warsaw WWTP Inspection Date: 12/04/2020 Inspection Type: Compliance Evaluation 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)? Comment: Effluent Pipe Is right of way to the outfall properly maintained? 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: Yes No NA NE ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ Yes No NA NE ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ Page# 9