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Home My WebLink AboutNC0066362_Inspection_20181121EPA 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 NC0066362 18/11/05 S 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) Benson Apartments 161 Brookside Camp Rd Hendersonville NC 28792 Entry Time/Date Permit Effective Date Exit Time/Date Permit Expiration Date 10:30AM 18/11/05 16/03/01 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) /// Mark Brandon Jones/ORC/828-273-0760/ Other Facility Data 11:15AM 18/11/05 20/12/31 Name, Address of Responsible Official/Title/Phone and Fax Number Nathan D Benson,PO Box 1090 Mountain Home NC 287581090//828-693-5493/Contacted No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Operations & Maintenance 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 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: 05FB56D0-7C7A-4EC4-BC08-1465B53C68FD 11/21/2018 11/21/2018 NPDES yr/mo/day 18/11/05 Inspection Type S3111218 1 Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) On 11/5/2018, I (Daniel Boss) met with Mark Jones for a Compliance Sampling Inspection at Benson Apartments WWTF. Overall the facility appeared to be running very well and significant repairs have been made since the last inspection. Recently Mr. Jones replaced the return sludge line from the clarifier after discovering a hole in it. Prior to the repair the clarifier solids would get stirred up after running the return sludge for a couple minutes. Mr. Jones mentioned that there is no aeration or sludge transfer line to the sludge digester. As a result he uses a hose to waste solids to the digester, and has to pump the solids out of the digester relatively soon after wasting them. It could be helpful to add aeration to the digester to extend the time sludge could be held before removal. Permanent piping for sludge transfer would reduce the chance of a sludge spill during transfer. . Mr. Jones has located the effluent pipe discharge for the facility and it is not on the property of Benson Apartments. The discharge pipe is submerged and does not extend to the tributary and therefore it could be lengthened. Grab samples were taken for ammonia, fecal coliform, and total suspended solids (TSS). Preliminary Results: TSS = 20mg/L Fecal Coliform = 27 cfu/100ml Ammonia = results pending Final lab reports will be sent when they are available. NC0066362 17 (Cont.) Page#2 DocuSign Envelope ID: 05FB56D0-7C7A-4EC4-BC08-1465B53C68FD Permit:NC0066362 Inspection Date:11/05/2018 Owner - Facility: Inspection Type: Benson Apartments Compliance Sampling 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? Comment: Septic Tank Yes No NA NE (If pumps are used) Is an audible and visual alarm operational? Is septic tank pumped on a schedule? Are pumps or syphons operating properly? Are high and low water alarms operating properly? The septic tank is pumped every couple months.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? Is the DO level acceptable?(1.0 to 3.0 mg/l) Mr. Jones says he keeps the DO at 2.5 mg/L and the pH near 6.9 in the aeration basins. Settleability is 35% at 30 min, 16% at one hour. 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? Page#3 DocuSign Envelope ID: 05FB56D0-7C7A-4EC4-BC08-1465B53C68FD Permit:NC0066362 Inspection Date:11/05/2018 Owner - Facility: Inspection Type: Benson Apartments Compliance Sampling Secondary Clarifier Yes No NA NE 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) The sludge blanket was about 2.5 ft. Mr. Jones says he only needs to run the skimmer twice per week. Comment: Disinfection-Tablet Yes No NA NE Are tablet chlorinators operational? Are the tablets the proper size and type? Number of tubes in use?1 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? Mr. Jones recently repaired the chlorinator. Unfortunately this disturbed an eight inch layer of solids in the trough and caused a fecal coliform violation in the month of October 2018. Comment: De-chlorination Yes No NA NE Type of system ?Tablet 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? Comment: Are the tablets the proper size and type? Are tablet de-chlorinators operational? Number of tubes in use?1 Comment: Pump Station - Effluent Yes No NA NE Is the pump wet well free of bypass lines or structures? Are all pumps present? Are all pumps operable? Are float controls operable? Is SCADA telemetry available and operational? Is audible and visual alarm available and operational? Page#4 DocuSign Envelope ID: 05FB56D0-7C7A-4EC4-BC08-1465B53C68FD Permit:NC0066362 Inspection Date:11/05/2018 Owner - Facility: Inspection Type: Benson Apartments Compliance Sampling Pump Station - Effluent Yes No NA NE 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? The outfall is not on the owner's property and it would be difficult to maintaint the right of way. The effluent pipe is submerged and difficult to locate. Extending the effluent pipe could be beneficial for that reason. Comment: 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? This digester is just an unaerated concrete tank where wasted sludge is stored.Comment: Page#5 DocuSign Envelope ID: 05FB56D0-7C7A-4EC4-BC08-1465B53C68FD