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Home My WebLink AboutNC0026123_Compliance Evaluation Inspection_20170313Water Resources ENVIRONMENTAL QUALITY March 13, 2017 Mr. John N. Ogburn, City Manager City of Asheboro PAT MCCRORY Govemor DONALD R. VAN DER VAART Secretary S. JAY ZIMMERMAN Director P.O. Box 1106 Asheboro, NC 27204 RECEIVEDINCDEUDWR SUBJECT: Compliance Evaluation Inspection (CEI) MAR 21 2017 City of Asheboro Wastewater Treatment Plant WaterQWIRY NPDES Permit # NCO026123 peffnitting Section Randolph County Dear Mr. Ogburn: A Compliance Evaluation Inspection was performed on the subject facility by April Norton of the Winston- Salem Regional Office on March 9, 2017 at 10:00 am. Mr. Michael Wiseman, Operator in Responsible Charge (ORC), was present for the inspection. The inspection is comprised of an overall evaluation in order to document compliance and noncompliance of: facilities equipment, capability to meet effluent limits, and terms & conditions with the National Pollutant Discharge Elimination System (NPDES) permit. Permit . The NPDES permit became effective August 1, 2012 and expired September 30, 2016. Per NPDES Permit NC0026123, Section B, General Conditions: The Permittee is not authorized to discharge after the expiration date. In order to receive automatic authorization to discharge beyond the expiration date, the Permittee shall submit such information, forms, and fees as are required by the agency authorized to issue permits no later than 180 daysprior to expiration date unless permission for a later date has been granted by the Director. Records & Reports All process controls, site observations, and maintenance records are maintained on site. All records are kept for 3 years and sludge for 5 years. All laboratory records are kept for 5 years. Facility Site Review The facility consists of .9.0 million gallons per day (MGD) wastewater treatment plant containing the following components: six rectangular primary clarifiers, three trickling filters, four secondary clarifiers, two aeration basins, tertiary sand filter, and three final clarifiers. The wastewater in the aeration basins appeared to be a nice, healthy brown color. The wastewater at the clarifiers appeared to be clear, some floating solids (grease) were present. Effluent/Receiving Waters The effluent to Haskett Creek, flows into the Cape Fear River Basin, Class C waterbody, appeared clear with no visible foam or sheen. Flow Measurement The NPDES permit requires continuous flow recording and an annual calibration. The flow measuring State of North Carolina I Environmental Quality I Water Resources 450 West Hanes Mill Road, Suite 300, Winston-Salem, NC 27105 Phone: 336-776-9800 \ Intemet: www.ncdenr.gov device was last calibrated January 26, 2017 by Instrumentation Services, Inc. The next calibration is due April 30, 2017 Self -Monitoring Promm There were not any permit limit violations within the last 12 months. Laboratory data verification was performed on June 2016 Discharge Monitoring Report (DMR). There were no errors rioted. Laboratory The City of Asheboro has an on-site laboratory for most services. Additional laboratory services are conducted by Meritech. Operations & Maintenance There did not appear to be any operation and maintenance issues at the time of the inspection. Sludge Handling/Disposal Solids from the anaerobic digester are dewatered by the on-site belt press .prior to land application covered under WQ0001684. Compliance Status The compliance evaluation inspection is satisfactory.. Mr. Wiseman and his staff operate the facility in an excellent manner. Should you have any questions concerning this report, please contact April Norton or me at (336) 776- 9800. Sincerely, p F�/Sherri V Knight, PE, Regional Supervisor Water Quality Regional Operations Section Division of Water Resources, NCDEQ cc: Michael Wiseman. (e -copy) Central Files WSRO Files CA- Ol. � I 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 NCO026123 I11 12 .17/03/13 17 18 UC 19 i G i 20I 21111111 1111111111111111111111111 11111111111 166 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA Reserved— — 67 70 Id I 71 LJn j 72 L N 73I1 I 174 75 I_JJ80 l -J L_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) 10:OOAM 17/03/13 12/08/01 Asheboro WWfP Exit Time/Date Permit Expiration Date 1032 Bonkemeyer Dr Asheboro NC 27203 11:30AM 17/03/13 16/09/30 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data /// Michael Ray Wiseman/ORC/336-672-0892/ Name, Address of Responsible Official/Title/Phone and Fax Number Contacted John N Ogburn,PO Box 1106 Asheboro NC 272041106/City Manager/336-626-1213/3366261218 No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit Flow Measurement Operations & Maintenance 0 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 April Norton WSRO WQ//336-776-9800/ i Signar Management Q A ReviewerAgency/Office/Phone and Fax Numbers Date ,tet ,w:G(2 EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page# NPDES yr/mo/day Inspection Type 31 NCO026123 I11. 12 17/03/13 17 18 ICI Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Page# r. . Permit NCO026123 Owner -Facility: AsheboroWWTP Inspection Date: 03/13/2017 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. M ❑ ❑ ❑ application? Is the facility as described in the permit? 0 ❑ ❑ ❑ # Are there any special conditions for the permit? ❑ ❑ M ❑ Is access to the plant site restricted to the general public? M ❑ ❑ ❑ Is the inspector granted access to all areas for inspection? M ❑ ❑ ❑ Comment: Effluent Sampling Yes No NA NE Is composite sampling flow proportional? 0 ❑ ❑ ❑ Is sample collected below all treatment units? M ❑ ❑ ❑ Is proper volume collected? M ❑ ❑ ❑ Is the tubing clean? M ❑ ❑ ❑ # 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: Record Keeping Yes No NA NE Are records kept and maintained as required by the permit? ❑ ❑ ❑ Is all required information readily available, complete and current? ❑ ❑ ❑ Are all records maintained for 3 years (lab. reg. required 5 years)? 0 ❑ ❑ ❑ Are analytical results consistent with data reported on DMRs? ❑ ❑ ❑ Is the chain -of -custody complete? ❑ ❑ ❑ 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 CDCs Are DMRs complete: do they include all permit parameters? ❑ ❑ ❑ Has the facility submitted its annual compliance report to users and DWQ? 0 ❑ ❑ ❑ Page# 3 Permit: NCO026123 Owner - Facility: Asheboro WWTP Inspection Date: 03/13/2017 Inspection Type: Compliance Evaluation Yes No NA NE # Is flow meter used for reporting? M ❑ Record Keeping Yes No NA NE (If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator N ❑ ❑ ❑ on each shift? M ❑ ❑ ❑ Is.the ORC visitation log available and current? 0 ❑ ❑ ❑ Is the ORC certified at grade equal to or higher than the facility classification? M ❑ ❑ ❑ Is the backup operator certified at one grade less or greater than the facility classification? M ❑ ❑ ❑ Is a copy of the current NPDES permit available on site? M ❑ ❑ ❑ Facility has copy of previous year's Annual Report on file for review? 0 ❑ - ❑ ❑ Comment: 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: Flow Measurement - Effluent Yes No NA NE # Is flow meter used for reporting? M ❑ ❑ ❑ Is flow meter calibrated annually? 0 ❑ ❑ ❑ Is the flow meter operational? M ❑ ❑ ❑ (if units are separated) Does the chart recorder match the flow meter? ❑ ❑ ❑ M Comment: 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? 0 ❑ ❑ ❑ Is disposal of screening in compliance? ❑ ❑ 0 ❑ Is the unit in good condition? 0 ❑ ❑ ❑ Comment: Grit Removal Yes No NA NE Type of grit removal Page# 4 Permit: NC0026123 Owner - Facility: Asheboro VWVrP Is the clarifier free of black and odorous wastewater? 0 ❑ Inspection Date: 03/13/2017 Inspection Type: Compliance Evaluation Is the site free of excessive buildup of solids in center well of circular clarifier? ❑ ❑ Grit Removal Yes No NA NE a.Manual ❑ ❑ ❑ ❑ b.Mechanical 0 ❑ ❑ ❑ Is the grit free of excessive organic matter? 0 ❑ ❑ ❑ Is the grit free of excessive odor? N ❑ ❑ ❑ # Is disposal of grit in compliance? 0 ❑ ❑ ❑ Comment: 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? ❑ ❑ 0 ❑ Are weirs level? M ❑ ❑ ❑ Is the site free of weir blockage? 0 ❑ ❑ ❑ Is the site free of evidence of short-circuiting? 0 ❑ ❑ ❑ Is scum removal adequate? M ❑ ❑ ❑ Is the site free of excessive floating sludge? 0 ❑ ❑ ❑ Is the drive unit operational? M ❑ ❑ ❑ Is the sludge blanket level acceptable? ❑ ❑ ❑ 0 Is the sludge blanket level acceptable? (Approximately '/< of the sidewall depth) N ❑ ❑ ❑ Comment: 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? �' ❑ ❑ ❑ Is the site free of weir blockage? 0 ❑ ❑ . ❑ Is the site free of evidence of short-circuiting? ❑ ❑ ❑ Is scum removal adequate? 0 ❑ ❑ ❑ 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? M ❑ ❑ ❑ ,Is the sludge blanket level acceptable? (Approximately '/< of the sidewall depth) ❑ ❑ ❑ Comment: 0 Page# 5 Permit: NCO026123 Owner - Facility: Asheboro WWTP Inspection Date: 03/13/2017 Inspection Type: Compliance Evaluation . Trickling Filter Is the filter free of ponding? Is the filter free of leaks at the center column of filter's distribution arms? Is the distribution of flow even from the distribution arms? Is the filter free of uneven or discolored growth? Is the filter free of sloughing of excessive growth? Are the filter's distribution arms orifices free of clogging? Is the filter free of excessive filter flies, worms or snails? Comment: Aeration Basins Mode of operation Type of aeration system 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/1) Comment: De -chlorination Type of system ? 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: 10:1 chlorine to de -chlor Are the tablets the proper size and type? Are tablet de -chlorinators operational? Number of tubes in use? Comment: no comment Yes No NA NE S ❑ ❑ ❑ E ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ E ❑ ❑ ❑ Yes No NA NE Ext. Air ■ ❑- Diffused ❑ A E ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ N ❑ ❑ ❑ ■ ❑ ❑ ❑ Yes No NA NE Liquid ❑ ■ ❑ ❑ ❑ ❑ N ❑ ❑ ❑ N ❑ ❑ ❑ ■ ❑- ❑ ❑ A ❑ 0 Page# 6 Permit: NC0026123 Owner -Facility: Inspection Date: 03/13/2017 Inspection Type: Asheboro WWTP Compliance Evaluation Disinfection -Liquid Yes No NA NE Is there adequate reserve supply of disinfectant? ❑ ❑ ❑ (Sodium Hypochlorite) Is pump feed system operational? ❑ 1:111 Is bulk storage tank containment area adequate? (free of leaks/open drains) M ❑ ❑ ❑ Is the level of chlorine residual acceptable? ❑ ❑ ❑ 0 Is the contact chamber free of growth, or sludge buildup? M ❑ ❑ ❑ Is there chlorine residual prior to de -chlorination? ❑ ❑ ❑ 0 Comment: Page# 7