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Home My WebLink AboutNC0074756_Compliance Evaluation Inspection_20161020a s WcorResources ENVIRONMENTAL QUALITY a October 20, 2016 Mrs. Donna Davis, Director Stanly County Utilities - 1000 North First Street; Suite 12 Albemarle, NC 28001 PAT MCCRORY Governor DONALD R. VAN DER VAART Secretary' S. JAY ZIMMERMAN Director R5CENED/NCDEQ1D1111 OCT 252016 Water aSec wn permitfing. SUBJECT: Compliance Evaluation Inspection Badin WWTP NPDES Permit NCO074756 Stanly County, NC Dear Mr. Davis: On October 18, 2016, 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 of Roberto Scheller at (704) 236-2204 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: Earl Almond, ORC, email:,earlalmond@stanlyco.gov -Wastewater Branch MSC 1617 — Central files basement File State of North Carolina I Environmental Quality I WaterResources I Water Quality Regional Operations Mooresville Regional Office[ 610 East Center Avenue, Suite 3011 Mooresville, North Carolina 28115 704 6631699 S 7 United States Environmental Protection�gency 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 (Le., PCS) Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type 1 iti i 2 15 1 3 I NCO074756 . 111 12 16/10/18 17 18 i c i 19 I G i 20 I 21111111 1111 1111111111111111111 -II IIIIIIIIIII i66 Inspection Work Days Facility Self -Monitoring Evaluation Rating _ B1 QA ---Reserved — Reserved67 6770 I, I 71 I I 72 i , , 73 i 174 75 80 LJ L� LJJ 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) 10:38AM 16/10/18 14/03/01 Badin WWTP NC Hwy 740 Off NCSR 1716 Exit Time/Date Permit, Expiration Date Badin NC 28009 12:22PM 16/10/18 19/01/31 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data /// Earl Pearson Almond/ORC/704-422-3564/ Name, Address of Responsible OfficiaUTitle/Phone and Fax Number Contacted Donna Davis,! 000 N I st St Albemarle NC 28001/Utilities No Director/704-986-3691/7049863711 Section C: Areas Evaluated During Inspection (Check only those areas evaluated) . Permit Flow Measurement Operations & Maintenance Records/Reports Self -Monitoring Program Sludge Handling'DisposalFacility Site Review Efflue:nt/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. Ilk Page# 1 e NPDES yr/mo/day Inspection Type 1 31 NC0074756 I11 12 16/10/1 s 17 18 Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) I Y Permit: NCO074756 Owner -Facility: Badin WWTP Yes No NA.NE Is the pump wet well free of bypass lines or structures? 0 ❑ Inspection Date: 10/16!2016. Inspection Type: Compliance Evaluation ❑ Is the wet well free of excessive grease? 0 ❑ ❑ ❑ Are all pumps present? M ❑ Permit Yes No NA NE (if the present permit expires in 6 months or less). Has the permittee submitted a new ❑ ❑ M ❑ application?' .0 ❑ ❑ ❑ Is the facility as described in the permit? M ❑ -El ❑ # Are there any special conditions for the permit? ❑ ❑ ❑ El Is access to the plant site restricted to the general public? M. ❑ ❑ ❑ Is the inspector granted access to all areas for inspection? 0 ❑ , ❑ ❑ .Comment: Current permit was issued on March 1, 2014 and expires at midnight on January 31, 2019. Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? ..M E3.11 - ❑ Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable 0 ❑ ❑ ❑ Solids, pH, DO, Sludge Judge, and other that are applicable? Comment: Pump Station - Influent Yes No NA.NE Is the pump wet well free of bypass lines or structures? 0 ❑ ❑ ❑ Is the wet well free of excessive grease? 0 ❑ ❑ ❑ Are all pumps present? M ❑ ❑ ❑ Are all pumps operable? ❑ ❑ ❑ Are float controls operable? .0 ❑ ❑ ❑ Is SCADA telemetry available and operational? ❑ . ❑ 0 ❑ Is audible-and.vsual alarm available and operational? 'M El ❑ ❑ Comment: High'water alarm was checked during the subject inspection and found to operational. Influent Sampling Yes No NA NE # Is composite sampling flow proportional?, M ❑ ❑ ❑ Is sample collected above side streams? 0 -❑ ❑ ❑ 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 sampling performed according to the. permit? 'M ❑ ❑ ❑ Comment: Sampler thermometer should be checked against a NIST traceable thermometer at least once a year. Page# 3 r t v Permit NCO074756 Owner - Facility: BadinWWTP Are.the aerators operational? M . Inspection Date: 10/18/2016 Inspection Type: Compliance Evaluation ❑ Are the aerators free of excessive solids build up? Bar Screens Yes No NA NE Type -of bar screen ❑ # Is the foam the proper color for the treatment process? 0 a.Manual ❑ ❑ Does the foam cover less than 25% of the basin's surface? b.Mechanical ❑ ❑ ❑ Are the bars adequately screening debris? j❑ ❑ ❑ Is the screen free of excessive debris? 0 ❑ ❑ ❑ Is disposal of screening in compliance? 0 .❑ ❑ ❑ Is the unit in good condition? .-M . ❑ ❑ ❑ Comment: Oxidation Ditches Yes No .NA NE Are.the aerators operational? M . ❑ ❑ ❑ Are the aerators free of excessive solids build up? M ❑ ❑ ❑ # Is the foam the proper color for the treatment process? 0 ❑ ❑ ❑ Does the foam cover less than 25% of the basin's surface? M ❑ ❑ ❑ Is the DO level acceptable? M ❑ ❑ ❑ Are settieometer results acceptable (> 30 minutes)? M ❑ ❑ ❑ Is the DO level acceptable?(1.0.to 3.0 mg/1) ❑ ❑ ❑ . Are settelometer results acceptable?(400 to 800 ml/I in 30 minutes) ❑ ❑ M ❑ Comment: • It was noted that operator is keeping solids inventory around 200's ml/I using 30 minute settelometeir. Secondary Clarifier Yes No NA NE Is the clarifier free of black and odorous wastewater? :Q ❑ El 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? - 0 E.] ❑ ❑ 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? , ❑ 0 . ❑ Is the return rate acceptable (low turbulence)? .:. ❑ ❑ ❑ Is the overflow clear of excessive solids/pin floc? ❑ ❑ ❑ able?: acCe blanket: level sludge tA,Proximately % of the sidewall. depth),. `.. Is the P C P . - ❑ ❑ 130 Page# 4 Permit: NCO074756 Owner - Facility: Badin wwTP Are cylinders secured adequately? E Inspection Date: 10/18/2016 Compliance Evaluation Inspection Type: p ❑ Are cylinders protected from direct sunlight? Secondary Clarifier Yes No NA NE Comment: It was noted that one of the 2 seconda1y clarifiers was down for maintenance and that all of Is there adequate reserve supply of disinfectant? 0 plant flow was going into one clarifier. ❑ . ❑ Is the level of chlorine residual acceptable? Pumps -RAS -WAS Yes No NA NE Are pumps in place? 0 ❑ ❑ ❑ Are pumps operational? ❑ ❑ ❑ Are there adequate spare parts and supplies on site? N ❑ ❑ ❑ Comment: Disinfection -Gas Yes No NA NE Are cylinders secured adequately? E ❑ ❑ ❑ Are cylinders protected from direct sunlight? ❑ .0 ❑ ❑ ❑ Is there adequate reserve supply of disinfectant? 0 ❑ ❑ . ❑ Is the level of chlorine residual acceptable? ❑ . ❑ . ❑ N Is the contact chamber free of growth, or sludge.buildup? ❑ ❑ ❑ 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)? ❑ ❑ 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 - If yes, then when was the RMP last updated? Comment: quantities stored on site. De -chlorination Type of system ? Is the feed ratio proportional to chlorine amount (1 to 1)? Os storage appropriate for cylinders? # Is de -chlorination substance stored away from chlorine containers? Are the tablets the proper.size and type? Comment: Cl2 and SO4 are dispensed and stored in same room. Are tablet de -chlorinators operational? Number of tubes in use? Yes No NA NE Gas ❑ ❑ ❑ ❑ ❑ .0 ❑ c ❑' ❑ ❑ ❑ ❑ ❑ �. p Permit NC0074756 -Owner-Facility: 13adinwwTP Q Inspection Date: 10/18/2016 Inspection Type: Compliance Evaluation De -chlorination Yes No NA NE Comment: Standby Power Yes No NA NE Is automatically activated standby power available? ❑ ❑ ❑ Is the generator tested by interrupting primary power source? ❑ ❑ ❑ Is the generator tested under load? 0 ❑ ❑ ❑ Was generator tested & operational during the inspection? ❑ ❑ ❑ 0 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? ❑ 1:1 ❑ Comment:. Aerobic Digester Yes No NA NE Is the capacity adequate? .0 ❑ ❑ 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: Center ring of oxidation ditch is aerobic digester. Drying Beds. _ Yes No NA NE Is there adequate drying bed space? _ '❑ ❑ ❑ Is the sludge distribution on drying beds appropriate? ❑ '❑ 0 ❑ Are the drying beds free of vegetation? ❑ ❑ ❑ # Is the site free of dry sludge remaining in beds? 0 ❑ ❑ ❑ Is the site free of stockpiled sludge? M ❑ ❑ 0 Is the filtrate from sludge drying, beds returned to the front of the plant? 0 ❑ ❑ ❑ # Is the sludge disposed of through county landfill? 0 ❑ ❑ # Is the sludge land applied? ❑ ❑ ❑. M (Vacuum filters) Is polymer mixing adequate? ❑ ❑ 0 ❑ . Comment: Record Keeping Yes No NA NE Page# 6 m Permit: NCO074756 Owner - Facility:. Badin WWTP Inspection Date: 10/18/2016 Inspection Type: Compliance Evaluation Record Keepinq Yes No NA NE Are records kept and maintained as required by the permit? 0 ❑ ❑ ❑ Is all. required information readily available, complete and current? . M ❑ ❑ _❑ Are all records maintained for 3 years (lab. reg. required 5 years)? 0 ❑ ' ❑ ❑ Are analytical results consistent with data reported on DM Rs? M ❑ ❑ ❑ Is the chain -of -custody complete? 0 ❑ ❑ ❑ 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 COCs Are DMRs complete: do they include all permit parameters? M ❑ ❑ ❑ Has the facility submitted its annual compliance report to users and DWQ? ❑ ❑ 0 ❑ (If the facility is =. or > 5 MGD pemiitted flow) Do they operate 24/7 with a certified operator _ ❑ ❑ 0_ ❑ 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? ❑ ❑ ❑ 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? 0 ❑ ❑ ❑ Facility has copy of previous year's Annual Report on file for review? ❑ ❑ ❑ 0 Comment:. Chain of Custody (COC) should indicate that all samples are being shipped "ON ICE". Effluent Sampling Yes No NA NE Is composite sampling flow proportional? M ❑ ❑ ❑ Is sample collected below all treatment units? 0 ❑ ❑ ❑ Is proper volume collected? M ❑ ❑ ❑ Is the tubing clean? M. ❑ ❑ ❑ # Is proper temperature set for sample storage (kept of less thanorequal to 6.0 degrees ❑ ❑ ❑ Celsius)? Is the facility sampling performed as required by,the permit (frequency, sampling type '; ❑ ❑ ❑ representative)? -Comment: Sampler thermometer should be'checked against a NIST tracable thermoter at least once a• vear• Page# 7 i