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Home My WebLink AboutNC0032662_Compliance Evaluation Inspection_20160202i' Water Resources ENVIRONMENTAL QUALITY PAT MCCRORY Governor DONALD R. VAN DER VAART Secretary S. JAY ZIMMERMAN Director January 28, 2016 Catherine Renbarger, City Manager RECEIVEDUDEWWR City of Claremont - FEB 0 2 2016 Post Office Box 446 Claremont, North Carolina 28610 Water Quality Permitting Section SUBJECT: Compliance Evaluation Inspection North WWTP NPDES Permit NCO032662 Catawba County, NC Dear Mrs. Renbarger: On January 21, 2016, Roberto Scheller and Edward Watson of this Office conducted an inspection at the subject facility. This inspection was conducted as a Compliance Evaluation Inspection (CEI) to insure compliance with permit requirements and conditions. At the time of inspection facility appeared to be fairly well maintained and operated. We wish to thank you and operating staff for your assistance regarding the inspection. A copy of this inspection will be forwarded to the facility's Operator -in - Responsible -Charge (ORC). The enclosed report and noted comments should be self-explanatory; however, should you have any questions, please do not hesitate to contact myself or Roberto Scheller at (704) 235-2204 or roberto.scheller@ncdenr.gov. Sincerely, W. Corey Basinger, Regional Supervisor Water Quality Regional Operations Section Division of Water Resources, NCDEQ Enclosure: Inspection Report cc: M. Shawn Pennell, Environmental Manger, PO Box 398, Hickory, NC 28603 Jody R. Ledford, ORC, City of Hickory, PO Box 398, Hickory, NC 28603 Wastewater Branch MSC 1617 — Central files basement File State of North Carolina 1 Environmental Quality I Water Resources I Water Quality Regional Operations Mooresville Regional Office) 610 East Center Avenue, Suite 3011 Mooresville, North Carolina 28115 704 663 1699 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 I 19 LI 201 1 IN 1 2 LI 3 I NCO032662 I11 12 16/01/21 17 18 LCI 2111111111111111111111111111111111111111 1 �6 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA --------Reserved--------- 67 70 1, 1 71 L I 72 I N I 731 I I 174 751 I I I I I I I80 L_1 LJ 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) 12.15PM 16/01/21 16/01/01 North WWTP Centennial Blvd Exit Time/Date Permit Expiration Date Claremont NC 28610 01.15PM 16/01/21 20/07/31 Name(s) of Onsite Representative(s)rrities(s)/Phone and Fax Number(s) Other Facility Data /// Jody R Ledford/ORC/828-323-7540/ Name, Address of Responsible Officiairritle/Phone and Fax Number Contacted Catherine Renbarger,PO Box 446 Claremont NC 28610/City Manager/828-466-7255/ No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) ® Permit ® Flow Measurement ® Operations & Maintenanc6 ® Records/Reports ® Self -Monitoring Program ® 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) . O Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date Roberto Scheller MRO WQ//252-946-6481/ Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date William C Basinger MRO WQ//704-235-2194/ EPA 3560-3 (Rev 4) Previous editions are obsolete.- D A � „ M� id � ...� r� 1/wdr Page# NPDES yr/mo/day Inspection Type 31 NCO032662 I11 12 16/01/21 17 18 I C I Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) 1 Page# 2 I., Permit: NCO032662 Owner - Facility: North WWTP Inspection Date: 01/21/2016 Inspection Type: Compliance Evaluation Yes No NA NE Type of bar screen Record Keeping Yes No NA NE Are records kept and maintained as required by the permit? E ❑ ❑ ❑ 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? E ❑ ❑ ❑ Is the chain -of -custody complete? 0 ❑ ❑ ❑ Dates, times and location of sampling 0 ❑ ❑ ❑ 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 operator ❑ ❑ ® ❑ 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? ® ❑ ❑ ❑ Facility has copy of previous year's Annual Report on file for review? ® ❑ ❑ ❑ Comment: Bar Screens Yes No NA NE Type of bar screen a Manual b.Mechanical ❑ Are the bars adequately screening debris? e ❑ ❑ ❑ Is the screen free of excessive debris? ® ❑ ❑ ❑ Is disposal of screening in compliance? ■ ❑ ❑ ❑ Is the'unit in good condition? 0 ❑ ❑ ❑ Comment: Aeration Basins Yes No NA NE Page# 3 Permit: NC003266? Inspection Date: 01/21/2016 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/I) Comment: Owner -Facility: North WWfP Inspection Type: Compliance Evaluation Secondary Clarifier 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 %< of the sidewall depth) Comment: Disinfection -Gas Are cylinders secured adequately? Are cylinders protected from direct sunlight? Is there adequate reserve supply of disinfectant? 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? Does the Stationary Source have more than 2500 lbs of Chlorine (CAS No. 7782-50-5)? Yes No NA NE Ext Air ❑ ❑ Diffused ® ❑ • ❑ ❑ ❑ ® ❑ ❑ ❑ ® ❑ ❑ ❑ ® ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ E ❑ ❑ ❑ ❑ Yes No NA NE ® ❑ ❑ ❑ ® ❑ ❑ ❑ ® ❑ ❑ ❑ ® ❑ ❑ ❑ ® ❑ ❑ ❑ ® ❑ ❑ ❑ ® ❑ ❑ ❑ ❑ ❑ ® ❑ ® ❑ ❑ ❑ ® ❑ ❑ ❑ ® ❑ ❑ ❑ Yes No NA NE ® ❑ ❑ ❑ ® ❑ ❑ ❑ ® ❑ ❑ ❑ • ❑ ❑ ❑ ® ❑ ❑ ❑ 0 ❑ ❑ ❑ ❑ ❑ i ❑ Page# 4 Permit: NCO032662 Owner - Facility: North WWfP Inspection Date: 01/21/2016 Inspection Type: Compliance Evaluation Disinfection -Gas Yes No NA NE If yes, then is there a Risk Management Plan on site? ❑ ❑ N ❑ 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)? ® ❑ ❑ ❑ Is storage appropriate for cylinders? ® ❑ ❑ ❑ # Is de -chlorination substance stored away from chlorine containers? ® ❑ ❑ ❑ Are the tablets the proper size and type? ❑ ❑ ® ❑ Comment: Sulfer Dixide shed should be identified with appropriate placards. Are tablet de -chlorinators operational? ❑ ❑ ® ❑ Number of tubes in use? 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? Comment: 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: Aerobic Digester Yes No NA NE Is the capacity adequate? ® ❑ ❑ ❑ Is the mixing adequate? ® ❑ ❑ ❑ Page# 5 Permit: NCO032662 Owner - Facility: North WWTP # Is flow meter used for reporting? ® ❑ Inspection Date: 01/21/2016 Inspection Type: Compliance Evaluation Is flow meter calibrated annually? ® ❑ Aerobic Digester Yes No NA NE Is the site free of excessive foaming in the tank? M ❑ ❑ ❑ # Is the odor acceptable? ■ ❑ ❑ ❑ # Is tankage available for properly waste sludge? 0 ❑ ❑ ❑ Comment: Flow Measurement - Influent 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? ® ❑ ❑ ❑ 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: Page# 6