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Home My WebLink AboutNC0021181_Compliance Evaluation Inspection_20180220Environmental Quality 20 February 2018 Mr. Adrian Miller, City Manager City of Belmont P.O. Box 431 Belmont, NC 28012 ROY COOPER Governor MICHAEL S REGAN Secretary LINDA CULPEPPER Interim Director RECEIVEDlDENR /DWR FEB 2 8 2098 Water Resources Permitting Section Subj ect: Compliance Evaluation Inspection Belmont WWTP NPDES Permit No. NCO021181 Gaston County Dear Mr Miller: Enclosed is a copy of the Compliance Evaluation Inspection for the inspection conducted at the subject facility on February 15, 2018, by Maria Schutte and Ori Tuvia. Sandra Craft's cooperation during the site visit was much appreciated. Please advise the staff involved with this NPDES Permit by forwarding a copy of the enclosed repot. Chronic toxicity split samples were collected during the inspection Results of the split samples will be forwarded upon completion of analyses. If you any questions, please contact Ori Tuvia at (704) 235-2190, or via email at ori.tuvia@ncdenr.gov. Sincerely, W. Corey Basinger Regional Supervisor Mooresville Regional Office Division of Water Resources Cc: NPDES Gaston County Health Department MRO Files Mooresville Regional Office Location 610 East Center Ave , Suite 301 Mooresville, NC 28115 Phone (704) 663-16991 Fax (704) 663-60401 Customer Service 1-877-623-6748 Internet www ncwaterquality org 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 IN 1 2 15 1 3 I N00021181 111 121 18/02/15 117 18 1 BI 19 1 G I 20L] Lj 211_111 1 1 1 1 1 111 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 111 1 1 1 1 1 166 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA ---------Reserved-------- 67 120 70 71 72 LNJ 73L_L74 751 I I I I I_ 80 LJ it Section B FacilityData 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 30AM 18/02/15 06/02/01 Belmont WWTP 298 Parkdale Rd Exit Time/Date Permit Expiration Date Belmont NC 28012 11 45A 18/02/15 10/06/30 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data Sandra Sue Edwards/ORC1704-825-0510/ Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Barry L Webb,PO Box 431 Belmont NC 280120431/City No Managerl704-825-5586/7048250514 Section C Areas Evaluated During Inspection (Check only those areas evaluated) Permit Flow Measurement Operations & MaintenancE Records/Reports Self -Monitoring Program Sludge Handling Disposal Facility Site Review 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 Mana Schutte Division of Water Quality/1704-663-16991 On A Tuvia MRO WQ//704-663-1699/ 2- 2 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 gditions are obsolete Page# 1 NPDES yr/mo/day Inspection Type 31 NCO021181 I� 1 121 18/02/15 117 18 1 Q l 101 Section D Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Split tox samples were taken at the time of the Inspection Page# 2 Permit NCO021181 Owner -Facility Belmont WWTP Inspection Date 02/15/2018 Inspection Type Bioassay Compliance Yes No NA NE Are records kept and maintained as required by the permit? M ❑ Permit Yes No NA NE (If the present permit expires In 6 months or less) Has the permittee submitted anew ❑ ❑ 0 ❑ application? M ❑ ❑ ❑ Is the facility as described In the permit? M ❑ ❑ ❑ # 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? M ❑ ❑ ❑ Comment The subject permit expired on 6/30/2010 however, the Division received the permit renewal application package on 1/5/2010 The facility continues to adhere to the requirements of this permit until anew permit is reissued The City Implements an approved Industrial pretreatment program Record Keeping Yes No NA NE Are records kept and maintained as required by the permit? M ❑ ❑ ❑ Is all required Information readily available, complete and current? ■ ❑ ❑ ❑ Are all records maintained for 3 years (lab reg required 5 years)? M ❑ ❑ ❑ Are analytical results consistent with data reported on DMRs? 0 ❑ ❑ ❑ Is the chain -of -custody complete? ❑ ❑ ❑ ❑ Dates, times and location of sampling COC ORC logs and process control data were reviewed for the period January 2017 Name of Individual performing the sampling through November 2017 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? ❑ ❑ ❑ E (If the facility is = or> 5 MGD permitted flow) Do they operate 24/7 with a certified operator M ❑ ❑ ❑ on each shift? Is the ORC visitation log available and current? M ❑ ❑ ❑ 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? E ❑ ❑ ❑ Is a copy of the current NPDES permit available on site? 0 ❑ ❑ ❑ Facility has copy of previous year's Annual Report on file for review? 0 ❑ ❑ ❑ Comment The records reviewed during the inspection were organized and well maintained DMRs, COC ORC logs and process control data were reviewed for the period January 2017 through November 2017 Page# 3 Permit NCO021181 Owner - Facility Belmont WWTP Yes No NA NE # Is composite sampling flow proportional? 0 ❑ Inspection Date 02/15/2018 Inspection Type Bioassay Compliance ❑ Is sample collected above side streams? M ❑ Laboratory Yes No NA NE Are field parameters performed by certified personnel or laboratory? N ❑ ❑ ❑ Are all other parameters(excluding field parameters) performed by a certified lab? 0 ❑ ❑ ❑ # Is the facility using a contract lab? N ❑ ❑ ❑ # Is proper temperature set for sample storage ikept at less than or equal to 6 0 degrees ❑ ❑ ❑ Celsius)? N ❑ ❑ ❑ Incubator (Fecal Coliform) set to 44 5 degrees Celsius+/- 0 2 degrees? ❑ ❑ 0 ❑ Incubator (BOD) set to 20 0 degrees Celsius +/- 1 0 degrees? ❑ ❑ 0 ❑ Comment Influent and effluent analyses (Including field) are performed by Shealy Environmental (influent and Services Inc (Certification #329) ETT Environmental, Inc (toxicity) has also been contracted to provide analytical support effluent Influent Sampling Yes No NA NE # Is composite sampling flow proportional? 0 ❑ ❑ ❑ Is sample collected above side streams? 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 M ❑ ❑ ❑ Celsius)? Is sampling performed according to the permit? N ❑ ❑ ❑ Comment The subject permit requires composite BOD and TSS influent samples Aliquot sampling collected was 150 ml Effluent Sampling Yes No NA NE Is composite sampling flow proportional? M ❑ ❑ ❑ Is sample collected below all treatment units? E ❑ ❑ ❑ Is proper volume collected? E ❑ ❑ ❑ Is the tubing clean? 0 ❑ ❑ ❑ # 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 N ❑ ❑ ❑ representative)? Comment The subject permit requires composite and grab effluent samples Regular aliquot verflcations are performed and documented on both samplers (influent and effluent Upstream / Downstream Sampling Yes No NA NE Page# 4 Permit NCO021181 Inspection Date 02/15/2018 Owner - Facility Belmont WWTP Inspection Type Bioassay Compliance Upstream / Downstream Sampling Is the facility sampling performed as required by the permit (frequency, sampling type, and sampling location)? Comment Operations & Maintenance 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'? Yes No NA NE ■ ❑ ❑ ❑ Yes No NA NE ■ ❑ ❑ ❑ N ❑ ❑ ❑ Comment The facility appeared to be properly operated and well maintained The ORC and staff Yes No NA NE Type of grit removal ❑ Incorporate a comprehensive process control program with all measurements being ❑ a Manual ❑ Properly documented and maintained on-site ❑ ❑ b Mechanical 0 Bar Screens Yes No NA NE Type of bar screen Is the grit free of excessive organic matter? 0 ❑ ❑ a Manual ❑ E ❑ ❑ b Mechanical # Is disposal of grit in compliance? 0 ❑ ❑ Are the bars adequately screening debris? ❑ ❑ ❑ Is the screen free of excessive debris? E ❑ ❑ ❑ Is disposal of screening In compliance? ❑ ❑ ❑ Is the unit In good condition? ❑ ❑ ❑ Comment Grit Removal Yes No NA NE Type of grit removal ❑ 0 ❑ ❑ a Manual ❑ ❑ ❑ ❑ b Mechanical 0 ❑ ❑ ❑ Is the grit free of excessive organic matter? 0 ❑ ❑ ❑ Is the grit free of excessive odor? E ❑ ❑ ❑ # Is disposal of grit in compliance? 0 ❑ ❑ ❑ Comment Screenings and grit are disposed at the County Landfill Flow Measurement - Influent Yes No NA NE # Is flow meter used for reporting? ❑ 0 ❑ ❑ Is flow meter calibrated annually? 0 ❑ ❑ ❑ Is the flow meter operational? 0 ❑ ❑ ❑ Page# 5 Permit. NCO021181 Owner -Facility Belmont wwTP Inspection Date 02/15/2018 Inspection Type Bioassay Compliance Flow Measurement - Influent Yes No NA NE (If units are separated) Does the chart recorder match the flow meter? ❑ ❑ 0 ❑ Comment The Influent flow meter Is calibrated quarterly and was last calibrated on 2/6/2016 by Ken Nash Company, Inc 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) Yes No NA NE Ext Air Surface Yes No NA NE Is the clarifier free of black and odorous wastewater? ■ ❑ ❑ ❑ E ❑ ❑ ❑ ❑ ❑ ■ ❑ E ❑ ❑ ❑ E ❑ ❑ ❑ N ❑ ❑ ❑ ❑ ❑ ❑ ■ Comment The facility Is equipped with two aeration basins (Inactive aertion basin has been out of service for more then 10 years and would require maintenance), however, only one aeration basin is used due to low influent flows Sodium hydroxide Is added to the influent prior to the aeration basin to maintain appropriate alkalinity/pH levels Secondary Clarifier Yes No NA NE Is the clarifier free of black and odorous wastewater? ❑ ❑ ❑ Is the site free of excessive buildup of sol,ds in center well of circular clarifier? 0 ❑ ❑ ❑ Are weirs level? 0 ❑ ❑ ❑ Is the site free of weir blockage? 0 ❑ ❑ ❑ Is the site free of evidence of short-circu,ting? N ❑ ❑ ❑ Is scum removal adequate? M ❑ ❑ ❑ Is the site free of excessive floating slucge? 0 ❑ ❑ ❑ Is the drive unit operational? 0 ❑ ❑ ❑ Is the return rate acceptable (low turbu'ence)? 0 ❑ ❑ ❑ Is the overflow clear of excessive solids/pin floc? E ❑ ❑ ❑ Is the sludge blanket level acceptable° (Approximately '/. of the sidewall depth) E ❑ ❑ ❑ Comment Both secondaries we,e operational and in service Pumps -RAS -WAS Yes No NA NE Are pumps in place? E ❑ ❑ ❑ Page# 6 Permit NCO021181 Owner - Facility Belmont bW TP Inspection Date 0211512018 Inspection Type Bioassay Compliance Pumps -RAS -WAS Yes No NA NE Are pumps operational? 0 ❑ ❑ ❑ Are there adequate spare parts and supplies on site? E ❑ ❑ ❑ Comment Disinfection -Gas Yes No NA NE Are cylinders secured adequately? 0 ❑ ❑ ❑ Are cylinders protected from direct sunlight? E ❑ ❑ ❑ Is there adequate reserve supply of disinfectant? 0 ❑ ❑ ❑ Is the level of chlonne residual acceptable? 0 ❑ ❑ ❑ Is the contact chamber free of growth, or sludge buildup? 0 ❑ ❑ ❑ Is there Chlorine residual prior to de -chlorination? 0 ❑ ❑ ❑ Does the Stationary Source have more than 2500 lbs of Chlorine (CAS No 7782-50-5)? 0 ❑ ❑ ❑ If yes, then is there a Risk Management Plan on site? 0 ❑ ❑ ❑ If yes, then what is the EPA twelve digit ID Number? (1000- -_) 100000007244 If yes, then when was the RMP last updated? Comment The chlorination and dechlonnation systems are serviced annually by a contracted company, last serviced on 4/16/2017 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? N ❑ ❑ ❑ # Is de-chlonnation substance stored away from chlorine containers? E ❑ ❑ ❑ Comment Are the tablets the proper size and type? ❑ ❑ N ❑ Are tablet de -chlorinators operational? ❑ ❑ N ❑ Number of tubes in use? Comment Flow Measurement - Effluent Yes No NA NE # Is flow meter used for reporting? 0 ❑ ❑ ❑ Is flow meter calibrated annually? 0 ❑ ❑ ❑ Is the flow meter operational? N ❑ ❑ ❑ Page# 7 Permit NCO021181 Inspection Date 02/15/2018 Owner - Facility Belmont WWrP Inspection Type Bioassay Compliance Flow Measurement - Effluent (If units are separated) Does the chart recorder match the flow meter? Yes No NA NE ❑ ❑ N ❑ Comment The effluent flow meter is calibrated quarteriv and was last calibrated on 2/6/2018 by Ken Nash Company, Inc Yes No NA NE Is the capacity adequate? 0 ❑ Effluent Pipe Yes No NA NE Is right of way to the outfall properly maintained? M ❑ ❑ ❑ Are the receiving water free of foam other than t -ace amounts and other debris? E ❑ ❑ ❑ If effluent (diffuser pipes are required) are they operating properly? ❑ ❑ 0 ❑ Comment The effluent appeared clear with no floatable solids or foam Aerobic Digester Yes No NA NE Is the capacity adequate? 0 ❑ ❑ ❑ Is the mixing adequate? N ❑ ❑ ❑ Is the site free of excessive foaming In the tank? 0 ❑ ❑ ❑ # Is the odor acceptable? 0 ❑ ❑ ❑ # Is tankage available for properly waste sludge? 0 ❑ ❑ ❑ Comment The facility is equipped with two aerobic digestors and a sludge holding tank The drying beds have been taken out of service for several years Digested bio -solids are land applied by a contract company under the authority of Permit No WQ0003281 Standby Power Yes No NA NE Is automatically activated standby power available? E ❑ ❑ ❑ Is the generator tested by Interrupting primary power source? 0 ❑ ❑ ❑ Is the generator tested under load? 0 ❑ ❑ ❑ Was generator tested & operational during the Inspection? ❑ ❑ ❑ M Do the generator(s) have adequate capacity to operate the entire wastewater site? E ❑ ❑ ❑ Is there an emergency agreement with a fuel vendor for extended run on back-up power? E ❑ ❑ ❑ Is the generator fuel level monitored? M ❑ ❑ ❑ Comment The facility is equipped with one standby generator that is tested weekly and put under load monthly The City also participates In the load management program Page# 8