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Home My WebLink AboutNC0024333_Compliance Evaluation Inspection_20170202T.y. ?, a Water Resources Environmental Quality February 2, 2017 Mr. Russell G. Colbath, PE Director of Water Resources City of Monroe Post Office Box 69: Monroe, North Carolina 28111 SUBJECT: Compliance Evaluation Inspection Monroe WWTP NPDES Permit NC0024333 Union County, NC Dear Mr. Colbath: ROY COOPER . Governor. MICHAEL S. REGAN Secretary S. JAY ZIMMERMAN Director On January -11, 2017, Roberto Scheller 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 well: maintained and operated. We wish to thank you and the operating staff for assistance regarding this inspection. The enclosed report should be self-explanatory; however, should you have any questions, please do not hesitate to contact myself or Roberto Scheller at (70.4) 235-2204 or roberto.sdheller@ncdenr.gov. Sincerely, W. Corey Basinger, .Regional Supervisor - Water Quality Regional -Operations -Section Division of Water Resources, NCDEQ Enclosed cc: Kyle Ketchum - ORC, Monroe WWTP, 775 Treeway Drive, Monroe, NC 28110 -_Wastewater-Branch- . MSC 1617 — Central files basement File State of North Carolina 1 Environmental Quality 1611 Mail Service Center I Raleigh, North Carolina -27699-1611 919-707-9000 United States Environmental Protection Agency Form Approved.. EPA Washington, D.C. 20460 OMB No. 2040-0057 m Water Compliance inspection Report Approval e-ipires s-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 15 1 3 I NC0024333 Ill 12 17/01/11 17 18 i,. i 19 i G i 20I 211_I1 11 1 I I 11111-11 11 III 1111 1 I I I' I I I I I I I. 11 I I I I. Lf 6 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA --Reserved- Reserved67 67 70 i, 71 I i 72 i N i 73 I I74 75 80 LJ LLJ Section B: FacilityDataL-� 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) 09:54AM 17/01/11 14/09/01 Monroe WWTP Exit Time/Date Permit Expiration Date 775 Treeway Dr Monroe NC 28110 12:19PM 17/01/11 19/01/31 Name(s) of Onsite Representative(s)fTitles(s)/Phone and Fax Number(s) Other Facility Data /// Kyle P Ketchum/ORC/704-282-46121 Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Russell G Colbath,PO Box 69 Monroe NC 28111/Water Resources No Directorf704-282-4634/7042836492 Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit Flow Measurement Operations & Maintenance 0 Records/Reports Self -Monitoring Program Sludge Handling Disposal Facility Site Review M Effluent/Receiving Waters Laboratory 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 Roberto Scheller MRO WQ//252-946-6481/ Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date W. Corey Basinger MRO WQ//704-235-2194/ EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page# zol NPDES yr/mo/day Inspection Type 1 31 NC0024333 I11 12 17/01/11 17 18 y Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Page# 2 Permit: NCO024333 Owner - Facility: MonroeWWrP Inspection Date: 01/11/2017 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 ❑ ❑ ❑ ❑ application? E ❑ ❑ ❑ Is the facility as described in the permit?.. ❑ ❑ ❑ ❑ # 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? E ❑ ❑ ❑ Comment: Final effluent step aeration, before discharge into Richardson Creek, has been left off permit description. Record Keeping Yes No NA NE Are records kept and maintained as required by the permit? 0, ❑ ❑ ❑ Is all required information readily available, complete and current? E ❑ ❑ ❑ Are all records maintained for 3 years (lab. reg. required 5 years)? E ❑ ❑ ❑ Are analytical results consistent with data reported on DMRs? N ❑ ❑ ❑ 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? N ❑ ❑ ❑ Has the facility submitted its annual compliance report to users and DWQ? 0 ❑ ❑ ❑ (If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator 0 ❑ ❑ ❑ on each shift? Is the ORC visitation log. available and -current? 0 ❑ ❑ ❑ Is the ORC certified at grade equal to or higher than the facility classification? 0 ❑ ❑ ❑ Is the backup operator certified at one grade less or greater than the facility classification? 0 ❑ ❑ ❑ Is a copy of the current NPDES permit available on site? E ❑ ❑ ❑ Facility has copy of previous year's Annual Report on file for review? ❑ ❑ ❑ Comment: Operations-& Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? 0 ❑ ❑ ❑ Page# 3 Permit: NCO024333 Owner - Facility. Monroe WWrP Inspection Date: 01/11/2017 Inspection Type: Compliance Evaluation Operations & Maintenance Yes No NA NE Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable 0 ❑ ❑ ❑ Solids, pH, DO, Sludge Judge, and other that are applicable? Comment: Bar Screens Yes No NA NE Type of bar screen 0 ❑ ❑ ❑ a.Manual ❑ ❑ ❑ ❑ b. Mechan ical N ❑ ❑ ❑ Are the bars adequately screening debris? N ❑ ❑ ❑ Is the screen free of excessive debris? N ❑ ❑ ❑ Is disposal of screening in compliance? E ❑ ❑ ❑ Is the unit in good condition? E ❑ ❑ ❑ Comment: Screening debris is disposed of at landfill. Influent Sampling Yes No NA NE # Is composite sampling flow proportional? 0 ❑ ❑ ❑ Is sample collected above side streams? 0 ❑ ❑ ❑ Is proper volume collected? ' N ❑ ❑ ❑ Is the tubing clean? 0 ❑ ❑ ❑ # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees E ❑ ❑ ❑ Celsius)? N ❑ ❑ ❑ Is sampling performed according to the permit? , 0 ❑ ❑ ❑ Comment: Equalization Basins Yes No NA NE Is the basin aerated? ❑ ❑ 0 ❑ Is the basin free of bypass lines or structures to the natural environment? E ❑ ❑ ❑ Is the basin free of excessive grease? E ❑ ❑ ❑ Are all pumps present? El 1:1 1:1 Are all pumps operable? 0 ❑ ❑ ❑ Are float controls operable? N ❑ ❑ ❑ Are audible and visual alarms operable? 0 ❑ ❑ ❑ # Is basin size/volume adequate? 0 ❑ ❑ ❑ Comment: Page# 4 Permit: NCO024333 Owner - Facility: Monroe WwrP Inspection Date: 01/11/2017 Inspection Type: Compliance Evaluation . Equalization Basins Yes No NA NE Aeration Basins Yes No NA NE Mode of operation Ext.'Air Type of aeration system Diffused Is the basin free of dead spots? 0 ❑ ❑ ❑ Are surface aerators and mixers operational? ❑ ❑ 0 ❑ Are the diffusers operational? N ,❑ ❑ ❑ Is the foam the proper color for the treatment process? E ❑ ❑ ❑ Does the foam cover less than 25% of the basin's surface? 0 ❑ ❑ .❑ Is the DO level acceptable? N ❑ ❑ ❑ Is the DO level .acceptable?(1:0 to 3.0 mg/1) ❑ ' ❑ 0 ❑ Comment: All 5 basins were in operation at time of inspection. Aqueous lime.added to maintain alkalinity/pH levels. Secondary Clarifier Yes No NA NE Is the clarifier free of black and odorous wastewater? E ❑ ❑ ❑ Is the site free of excessive buildup of solids in center well of circular clarifier? ❑ ❑ ❑ Are -weirs level? 0 ❑ ❑ ❑ Is the site free of weir blockage? E ❑ ❑ ❑ Is the site free of evidence of short-circuiting? - 0 ❑ ❑ ❑ " Is scum removal adequate? 0 ❑ ❑ ❑ Is the site free of excessive floating sludge? 0 ❑ ❑ ❑ Is the drive unit operational? 0 ❑ ❑ ❑ Isthe`return rate acceptable (low turbulence)? E ❑ ❑ ❑ Is the overflow clear of excessive solids/pin floc? E ❑ ❑ ❑ Is the sludge blanket level acceptable? (Approximately % of the sidewall depth) E ❑ ❑ , ❑ Comment' :All four secondaries were in operation at time of inspection. Pumps -RAS -WAS'. Yes No NA NE Are pumps in place? 0 ❑ ❑ ❑ Are pumps operational? E ❑ ❑ ❑ Are there adequate spare parts and supplies on site? 0 ❑ ❑ ❑ Comment: Page# 5 permit: NCO024333 Owner - Facility: Monroe WWTP Yes No NA NE Type of system ? Gas Inspection Date: 01/11/2017 — Inspection Type: Compliance Evaluation Is the feed ratio proportional to chlorine amount (1 to 1)? ❑ ❑ Filtration (High Rate Tertiary) Yes No NA NE Type of operation: Down flow ❑ ❑ Is the filter media present? E ❑ ❑ ❑ Is the filter surface free of clogging? E ❑ ❑ ❑ Is the filter free of growth? 0 ❑ ❑ ❑ Is the air scour operational? N ❑ ❑ ❑ Is the scouring acceptable? ❑ ❑ ❑ N Is the clear well free of excessive solids and filter media? 0 ❑ ❑ ❑ Comment: Filter backwash returns to EQ Basin/head of treatment plant. Disinfection -Gas Yes. No NA NE Are cylinders secured adequately? ❑ ❑ ❑ Are cylinders protected from, direct sunlight? ❑ ❑ ❑ Is there adequate reserve supply of disinfectant? E ❑ ,❑ ❑ Is the level of chlorine residual acceptable? 0 ❑ ❑ ❑ Is the contact chamber free of growth, or sludge buildup? U ❑ ❑ ❑ Is there chlorine residual prior to de -chlorination? E ❑ ❑ ❑ Does the. Stationary Source have more than 2500 lbs of Chlorine (CAS No. 7782-50-5)? N ❑ ❑ ❑ If yes, then is there a Risk'Management Plan on site? ❑ ❑ ❑ If yes, then what is the EPA twelve digit ID Number? (1000- -___) 1000-0011-0435 If yes, then when was the RMP last updated? 03/11/2015 Comment: De -chlorination Yes No NA NE Type of system ? Gas Is the feed ratio proportional to chlorine amount (1 to 1)? ❑ ❑ 0 ❑ Is storage appropriate for. cylinders? E ❑ ❑ ❑ # Is de -chlorination substance stored away from chlorine containers? E ❑ . ❑ ❑ Comment: Are the tablets the proper size and type? ❑ ❑ N ❑ Are tablet.de-chlorinators operational?. E1 ❑. E ❑ Number -of tubes in use? Comment: Page# 6 Permit: NCO024333 Owner -Facility: MonroeWWrP ❑ ❑ ❑ Inspection Date: 01/11/2017 Inspection Type: Compliance Evaluation ❑ ❑ ❑ ■ 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? M ❑ ❑ ❑ # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees M ❑ . ❑ ❑ Celsius)? . Is the facility sampling performed as required by the permit (frequency, sampling type representative)? Comment: Facility is equipped with dual effluent composite samplers. Flow Measurement - Effluent # 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: Standby Power Is automatically activated standby power available? Is the generator tested by interrupting primary power source? Is the generator tested under load? Was generator tested & operational during the inspection? Do the generator(s) have adequate capacity to operate the entire wastewater site? Is there an emergency agreement with a fuel vendor for extended run on back-up power? Is the generator fuel level monitored? Comment: Aerobic Digester Is the capacity adequate? Is the mixing adequate? Is the site free of excessive foaming in the tank? # Is the odor acceptable? # Is tankage available for properly waste sludge? Comment: ■ ❑ ❑ ❑ - Yes No NA NE * ❑ ❑ ❑ * ❑ ❑ ❑ M ❑ ❑ ❑ ❑ ❑ M ❑ Yes No NA NE ❑ ❑ ❑ M ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ❑ ■ ■ ❑ ❑ ❑ M ❑' ❑ ❑ ■ ❑ ❑ ❑ Yes No NA NE M ❑ ❑ ❑ M ❑ ❑ ❑ ■-❑ ❑ ❑ ■ ❑ ❑ ❑ E ❑ ❑ ❑ Page#' 7 Permit: NCO024333 Owner -Facility: Monroe WWTP Inspection Date: 01/11/2017 Inspection Type: Compliance Evaluation Aerobic Digester Yes No NA NE Solids Handling Equipment Yes No NA NE Is the equipment operational? N ❑ ❑ ❑ Is the chemical feed equipment operational? N ❑ ❑ ❑ Is storage adequate? E ❑ ❑ ❑ Is the site free of high level of solids in filtrate from filter presses or vacuum filters? ❑ ❑ ❑ 0 Is the site free of sludge buildup on belts and/or rollers of filter press? 0 ❑ ❑ ❑ Is the site free of excessive moisture in belt filter press sludge cake? ❑ ❑ 0 ❑ The facility has an approved sludge management plan? 0 ❑ ❑ ❑ Comment:. Filtrate and stormwater from around bio -solids area is returned to head of plant. Drying Beds Yes No NA NE Is there adequate drying bed space? ❑ ❑ 0 ❑ Is the sludge distribution on drying beds appropriate? ❑ ❑ E ❑ Are the drying beds free of vegetation? ❑ ❑ 0 ❑ # Is the site free of dry sludge remaining in beds? ❑ ❑ ❑ Is the site free of stockpiled sludge? ❑ ❑ 0 ❑ Is the filtrate from sludge drying beds returned to the front of the plant? ❑ ❑ E ❑ # Is the sludge disposed of through county landfill? ❑ ❑ 0 ❑ # Is the sludge land.applied? ❑ ❑ E ❑ (Vacuum filters) Is polymer mixing adequate? ❑ ❑ ❑ ❑ Comment: Drying beds have been modified to store dewatered sludge from belt thickner. Effluent Pipe Yes No NA NE Is right of way to the outfall properly maintained? 0 ❑ ❑ ❑ Are the receiving water free of foam other than trace amounts and other debris? ❑ ❑ ❑ If effluent (diffuser pipes are required) are they operating properly? ❑ ❑ E ❑. Comment: Facility has step aeration before discharging into receiving stream. Foam at -point of discharge disipated 100 feet down stream of discharge point. Page# 8