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Home My WebLink AboutNC0004243_Inspection_20180724EPA United States Environmental Protection Agency Washington, D.C. 20460 Water Compliance Inspection Report Form Approved. OMB No. 2040-0057 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 N 52 NC0004243 18/07/12 C S31112171819 20 21 66 Inspection Work Days Facility Self-Monitoring Evaluation Rating B1 QA ----------------------Reserved------------------- N67707172 73 74 75 80 Section B: Facility Data Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include POTW name and NPDES permit Number) Sevier Plant 630 American Thread Rd Marion NC 28752 Entry Time/Date Permit Effective Date Exit Time/Date Permit Expiration Date 10:30AM 18/07/12 17/12/01 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) /// Phillip Charles Pittman/ORC/828-756-4111/ Other Facility Data 12:30PM 18/07/12 21/11/30 Name, Address of Responsible Official/Title/Phone and Fax Number Jerry Sisk,PO Box 368 Marion NC 28752///Contacted No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit Flow Measurement Operations & Maintenance Records/Reports Self-Monitoring Program 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 Daniel J Boss ARO WQ//828-296-4658/ Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page#1 DocuSign Envelope ID: 5E79BE81-9918-4349-A048-4087F327B828 7/26/2018 7/26/2018 NPDES yr/mo/day 18/07/12 Inspection Type C3111218 1 Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) On July 12, 2018, I (Daniel Boss) conducted a compliance evaluation inspection of the Coats American Sevier WWTP. I met with Phillip Pittman (ORC), Sara Hudgins (Backup ORC), and John Moss (Facilities Engineering Manager) at the plant. Overall the plant appears to be well maintained and operated. The influent basin is not a true equalization basin, it's an additional in-line lagoon that adds capacity and detention time, but doesn't actually equalize the flow. The aeration basin doesn't seem to be operated as an activated sludge unit so much as it does an aerated lagoon. The color of the wastewater is algae green from influent to effluent. Mr. Pittman says that is not due to algae, but rather it is pigment from the industrial process at the plant. The only two deficiencies noted are a lack of secondary containment for a chlorine spill and holes in the outer ring of a secondary clarifier. The clarifier ring needs to be repaired to prevent short circuiting. We suggest that better a containment protection be put in place for the liquid hypochlorite in case of a leak to prevent a treatment plant upset. We leave it to the permittee to decide whether or how that should be done. Mr. Pittman clearly explained where the upstream and downstream sampling is taking place and the locations appeared correct according to the permit. Upstream 001A on the eDMR's represents location U1 of the permit. Upstream 001 on the eDMR's represents location U2 of the permit. NC0004243 17 (Cont.) Page#2 DocuSign Envelope ID: 5E79BE81-9918-4349-A048-4087F327B828 Permit:NC0004243 Inspection Date:07/12/2018 Owner - Facility: Inspection Type: Sevier Plant Compliance Evaluation 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? # Are there any special conditions for the permit? Is access to the plant site restricted to the general public? Is the inspector granted access to all areas for inspection? Comment: Operations & Maintenance Yes No NA NE 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? DO is measured periodically in the lagoon.Comment: Equalization Basins Yes No NA NE Is the basin aerated? Is the basin free of bypass lines or structures to the natural environment? Is the basin free of excessive grease? Are all pumps present? Are all pumps operable? Are float controls operable? Are audible and visual alarms operable? # Is basin size/volume adequate? It is not a true EQ basin, it is just extra capacity and detention time for the facility.Comment: Aeration Basins Yes No NA NE Mode of operation Ext. Air Type of aeration system Diffused 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? Page#3 DocuSign Envelope ID: 5E79BE81-9918-4349-A048-4087F327B828 Permit:NC0004243 Inspection Date:07/12/2018 Owner - Facility: Inspection Type: Sevier Plant Compliance Evaluation Aeration Basins Yes No NA NE Is the DO level acceptable?(1.0 to 3.0 mg/l) The aeration basin is being operated as an aerated lagoon rather than activated sludge process. Comment: Secondary Clarifier Yes No NA NE Is the clarifier free of black and odorous wastewater? 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 return rate acceptable (low turbulence)? Is the overflow clear of excessive solids/pin floc? Is the sludge blanket level acceptable? (Approximately ¼ of the sidewall depth) There are holes in the outer ring of the clarifier which can allow short circuiting to occur.Comment: Pumps-RAS-WAS Yes No NA NE Are pumps in place? Are pumps operational? Are there adequate spare parts and supplies on site? Comment: Disinfection-Liquid Yes No NA NE Is there adequate reserve supply of disinfectant? (Sodium Hypochlorite) Is pump feed system operational? Is bulk storage tank containment area adequate? (free of leaks/open drains) Is the level of chlorine residual acceptable? Is the contact chamber free of growth, or sludge buildup? Is there chlorine residual prior to de-chlorination? There is a drain in the chlorine storage room that goes to the headworks of the plant. No secondary containment is provided for the chlorine in the event of a spill. Comment: Page#4 DocuSign Envelope ID: 5E79BE81-9918-4349-A048-4087F327B828 Permit:NC0004243 Inspection Date:07/12/2018 Owner - Facility: Inspection Type: Sevier Plant Compliance Evaluation De-chlorination Yes No NA NE Type of system ?Liquid Is the feed ratio proportional to chlorine amount (1 to 1)? Is storage appropriate for cylinders? # Is de-chlorination substance stored away from chlorine containers? Are the tablets the proper size and type? Ozone is also used.Comment: Are tablet de-chlorinators operational? Number of tubes in use? Comment: Effluent Sampling Yes No NA NE 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: Flow Measurement - Effluent Yes No NA NE # 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? Mr. Pittman calibrates the meter weekly.Comment: Effluent Pipe Yes No NA NE 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: Page#5 DocuSign Envelope ID: 5E79BE81-9918-4349-A048-4087F327B828 Permit:NC0004243 Inspection Date:07/12/2018 Owner - Facility: Inspection Type: Sevier Plant Compliance Evaluation Upstream / Downstream Sampling Yes No NA NE Is the facility sampling performed as required by the permit (frequency, sampling type, and sampling location)? Upstream and downstream sampling locations were verified as being correct.Comment: Page#6 DocuSign Envelope ID: 5E79BE81-9918-4349-A048-4087F327B828