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HomeMy WebLinkAboutNC0021423_Compliance Evaluation Inspection_20190924 (2)DocuSign Envelope ID: 66FB4EBC-04A2-4EOB-B795-EB1AD34DC8C2 ROY COOPER G&v-�rr1ar K41 HAEL S. REGAN Secretary LINDA CULPEPPER arwfar Richard Canipe Town of Spruce Pine PO Box 189 Spruce Pine, NC 28777-0189 NORTH CAROUNA Environmental Quality September 24, 2019 SUBJECT: Compliance Inspection Report Spruce Pine WWTP NPDES WW Permit No. NCO021423 Mitchell County Dear Permittee: The North Carolina Division of Water Resources conducted an inspection of the Spruce Pine WWTP on 9/10/2019. This inspection was conducted to verify that the facility is operating in compliance with the conditions and limitations specified in NPDES WW Permit No. NC0021423. The findings and comments noted during this inspection are provided in the enclosed copy of the inspection report entitled "Compliance Inspection Report". If you should have any questions, please do not hesitate to contact me at 828-296-4500 or via email at linda.wiggs@ncdenr.gov. Sincerely, �.DocuSigned by: tin,ol,� 6C38CDE295CF449... Linda Wiggs Water Quality Regional Operations Section Asheville Regional Office Division of Water Resources, NCDEQ ATTACHMENTS Ec: ARO Server, LF G:\WR\WQ\Mitchell\Wastewater\Municipal\21423 Spruce Pine WWTP\Inspections\9-10-2019 visit\20190924_NCO021423_CEI.rtf North src• rsDepartnentofErw:ronmentr.;Quairty I DiuistnofWater R,esources Ash--v a Regona:Off:ce 1 2090 U.S. 70 F?glm-sy I Swannsmos, North Caro:aka 2377S DocuSign Envelope ID: 66FB4EBC-04A2-4EOB-B795-EB1AD34DC8C2 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 IF I 3 I NCO021423 111 12 I 19/09/10 I17 18 I S J 19 L G] 201 I 211111 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 f6 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA ---------------------- Reserved ------------------- 671 70 I I 71 I I 72 I r I 73 I I 174 751 I I I I I I I80 u I� 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) 10:15AM 19/09/10 17/07/01 Spruce Pine WWTP 909 Creed Pitman Rd Exit Time/Date Permit Expiration Date Spruce Pine NC 28777 01:00PM 19/09/10 21/02/28 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Richard Canipe,PO Box 189 Spruce Pine INC 287770189//704-765-3000/ Yes Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit 0 Flow Measurement Operations & Maintenance Records/Reports Self -Monitoring Program 0 Sludge Handling Disposal Facility Site Review Effluent/Receiving Waters 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 Linda S Wiggs Ds DWR/ARO WQ/828-296-4500 Ext.4653/ DocuSigned by, Signature of Management Q R(ev�iewer�1 Agency/Office/Phone and Fax Numbers Date �11— 9/24/2019 7E617A38285848C... EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page# DocuSign Envelope ID: 66FB4EBC-04A2-4EOB-B795-EB1AD34DC8C2 NPDES yr/mo/day Inspection Type (Cont.) NCO021423 I11 121 19/09/10 117 18 JCJ Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) The Inspector, Linda Wiggs, met with Russell Lankford, Darrell Graham, Steve Taylor and Melvin Gardner. A new bar screen was installed in May. This has yielded improvements throughout the plant and removed the safety hazards the staff was having to deal with at the old bar screen. Staff have been able to complete pertinent maintenance tasks at the facility since the bar screen installation; notably at clarifier #1 & 2. Previous issues with the RAS-WAS pumps has also been remediated. Influent pumps and controls are scheduled in the coming weeks. A PCI was also conducted. We discussed the STMP and HWA, specifically related to the WWTP and getting more accurate information on influent due to the missed sidestreams. An extension was granted for further review by Regional and PERCS staff of STMP and IWS; due date 10/18/2019. Effluent flow proportional sampling was not running at the time of the inspection. Staff stated they were not getting enough water in the bottle for sampling recently and had issues. Since the inspection staff had KDT out to work on the flow/sampling system. Veolia staff worked on it as well. The Hach equipment will have to be sent to Hach for evaluation/repair. Veolia staff has set up a portable sampling in the interim; it is running flow proportional. Page# DocuSign Envelope ID: 66FB4EBC-04A2-4EOB-B795-EB1AD34DC8C2 Permit: NCO021423 Owner - Facility: Spruce Pine WWTP Inspection Date: 09/10/2019 Inspection Type: Compliance Evaluation 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: Improvement observed due to new bar screen. Process controls conducted: D.O., settleability, sludge judge. Permit Yes No NA NE (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? 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? 0 ❑ ❑ ❑ Comment: Permit expiration date is 2/28/2021. 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: New bar screen installed. 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: In 2-3 weeks new pumps and controls are scheduled. Page# 3 DocuSign Envelope ID: 66FB4EBC-04A2-4EOB-B795-EB1AD34DC8C2 Permit: NCO021423 Owner - Facility: Spruce Pine WWTP Inspection Date: 09/10/2019 Inspection Type: Compliance Evaluation Pump Station - Influent 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: Volume is 300ml. 45 minutes Yes No NA NE Yes No NA NE ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ Side streams not captured include Shannon PS, belt press, scum trough, grit can, digester decant. We discuss other means of sampling some of these sidestreams for more accurate influent numbers. See summary. 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 ❑ ❑ ❑ # Is disposal of grit in compliance? 0 ❑ ❑ ❑ Comment: 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? ❑ ❑ ❑ 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)? 0 ❑ ❑ ❑ 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 ❑ ❑ ❑ Comment: DO slighly elevated - 4.5 mq/I. Settelometer 400ml, 30 minutes. No foam Page# 4 DocuSign Envelope ID: 66FB4EBC-04A2-4EOB-B795-EB1AD34DC8C2 Permit: NCO021423 Owner - Facility: Inspection Date: 09/10/2019 Inspection Type: Spruce Pine WWTP Compliance Evaluation 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? E ❑ ❑ ❑ 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: #1 online. #2 & 3 offline. #3 to be used for surae flows. #1 & 2 have been cleaned since bar screen installation. They will alternate use between #1 & 2 and use those not in use for surge flows. Blanket at 2711'. 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: Pump leak has been fixed. 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? ❑ ❑ ❑ Is the contact chamber free of growth, or sludge buildup? 0 ❑ ❑ ❑ Is there chlorine residual prior to de -chlorination? ❑ ❑ ❑ Does the Stationary Source have more than 2500 Ibs of Chlorine (CAS No. 7782-50-5)? ❑ ❑ 0 ❑ If yes, then is there a Risk Management Plan on site? ❑ ❑ 0 ❑ If yes, then what is the EPA twelve digit ID Number? (1000- If yes, then when was the RMP last updated? Comment: Blanket 1.578', final chamber had no blanket. Page# 5 DocuSign Envelope ID: 66FB4EBC-04A2-4EOB-B795-EB1AD34DC8C2 Permit: NCO021423 Owner - Facility: Spruce Pine WWTP Inspection Date: 09/10/2019 Inspection Type: Compliance Evaluation De -chlorination Yes No NA NE Type of system ? 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: Sulfur Dioxide used. Are tablet de -chlorinators operational? ❑ ❑ 0 ❑ Number of tubes in use? Comment: Effluent Sampling Yes No NA NE Is composite sampling flow proportional? ❑ 0 ❑ ❑ 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 ❑ ❑ ❑ Celsius)? Is the facility sampling performed as required by the permit (frequency, sampling type ❑ 0 ❑ ❑ representative)? Comment: The sampler is a fairly new Hach system. It was set for Timed (470 ml. 45 minutes) Burin the inspection. Since the inspection staff had KDT out to work on system. Hach will have to resolve the sampler issue. Veolia staff have set up a portable sampling in the interim; it is running flow proportional. See summary. 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: Chart 36/meter 56, staff stated there is an adjustment to compensate for weir. Calibrated 10/18. KDT Technologies visited the site since the inspection to work on the flow meter and composite sampler. See summary. Upstream / Downstream Sampling Yes No NA NE Page# 6 DocuSign Envelope ID: 66FB4EBC-04A2-4EOB-B795-EB1AD34DC8C2 Permit: NC0021423 Owner - Facility: Spruce Pine WWTP Inspection Date: 09/10/2019 Inspection Type: Compliance Evaluation Upstream / Downstream Sampling Is the facility sampling performed as required by the permit (frequency, sampling type, and sampling location)? 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# 7