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Home My WebLink AboutNC0036277_Compliance Evaluation Inspection_20160517 PAT MCCRORY Governor r. DONALD R. VAN DER VAART Secretary Water Resources ENVIRONMENTAL QUALITY S. JAY ZIMMERMAN Director May 17, 2016 RECE/VED Ms. Jacqueline A. Jarrell, P.E., Superintendent MAY 2 `f et/ib Environmental Management Division kri;?AL Charlotte Mecklenburg Utilities T� LES 4222 Westmont Drive Charlotte, North Carolina 28217 SUBJECT: Compliance Evaluation Inspection McDowell Creek WWTP NPDES Permit NC0036277 Mecklenburg County, NC Dear Ms. Jerrell: On May 11, 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. Comments noted during the subject inspection are listed under the comment section of the enclosed inspection report. At the time of inspection the treatment facility appeared to be very well maintained and operated. We wish to thank you and operating staff for your 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) 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: Steven Lopkler, ORC, Charlotte Mecklenburg Utilities— McDowell Creek WWTP, 4901 Neck Road, Huntersville, NC 28078 Wastewater Branch MSC 1617 — Central files basement File • State of North Carolina I Environmental Quality I Water Resources I Water Quality Regional Operations Mooresville Regional Office'610 East Center Avenue,Suite 301 I Mooresville,North Carolina 28115 704 663 1699 Used Stew Environmental Protection Agency Form Approved. EPA ""&r" tun' 20480 OMB No.20.0-0057 Water Compliance Inspection Report ADDmval expires 631-98 Section A:National Data System Coding(i.e.,PCS) Transaction Code NPDES ydmo/day Inspection Type Inspector Fac Type 1 L„., i 2 ISI 3 NC0038277 111 12 1ero5/11 117 181.2.1 191 1 c 1 20l 1 21111111 111111111 11 1111111 1 111111 11111111111 r Inspection Work Days Facility Self-Monitoring Evaluation Rating B1 QA Reserved 871 1 701a I 71 I 1 72 1 „ 1 1 731 1 174 751 1 1 1 1 1180 LJ Section B:FacilityLLI LJ Name and Location of Fadkly Inspected(For Industrial Users discharying to POTW,also include Entry Time/Date Permit Effective Date PQTW name and NPDES permit Number) 02:O5PM 19/05111 14/01/01 McDowel Creek WWTP 4901 Neck Rd Exit Time/Date Permit Expiration Date Hunterevilb NC 28078 04:37PM 18/05/11 18/12/31 Name(s)of Onsite Reproaentadve(s)Mtles(s)/Phwro and Fax Number(s) Other Faclity Data /// Steven Joseph Lodrbr/ORC/704-875-0443/ Name,Address of Responsible Oiticlal fife/Phone and Fax Number Contacted Jacqueline A Jare11,4222 Westmont Dr Chadot0e NC 282171030/704-199-2551/7044239151 No Section C:Areas Evaluated During Inspection(Chec(only those areas evaluated) ▪ Permit •Flow Measurement •Operations&Maintenance Records/Reports Self-Monitoring Program II Sludge Handling Disposal • Fadlity Site Review •Effluent/Receiving Waters ▪ Laboratory Section D:Summary of Finding/Comments(Attach additional sheets of narrative and c eddists as necessary) (See attachment summary) (11; end r e)ofectorp (s) Agency/Office/Phone are Fax Numbers D oberto Schaller \--\ MRO WO//252-948-8481/ C Signature of Management 0 A Reviewer Agency/Office/Phone and Fax Numbers Date W.Corey Basinger MRO VOW/704-235-2194/ EPA Form 3580-3(Rev 9-94)Previous editions we obsolete. /?144.0.7 7.neh. Page* 1 NPDES yr/mo/day Inspection Type 1 31 Nc003e2n 111 121 1"911 1 17 1 g LI,_, Section D:Summary of Finding/Comments(Attach additional sheets of narrative and cheddists as necessary) page, 2 I Penna NC0036277 Owner-Faculty: McDowell Creek W WTP Inspection Data: 051/1/2018 Mapectlon Type: Compliance Evaluation Permit Yes No NA NE (If the present permit expires in 6 months or less). Has the permittee submitted a new 0 0 • 0 application? Is the facility as described in the permit? ■ 0 0 0 #Are there any special conditions for the permit? U 0 0 0 Is access to the plant site restricted to the general public? • 0 0 0 Is the inspector granted access to all areas for inspection? • 0 0 0 Comment: Current permit was issued on January 1 2014,and expires at midnight on December 31. 2018. Record Keening Yes No NA NE Are records kept and maintained as required by the permit? • 0 0 0 Is all required information readily available,complete and current? • 0 0 0 Are all records maintained for 3 years(lab. reg.required 5 years)? • 0 0 0 Are analytical results consistent with data reported on DMRs? • 0 0 0 Is the chain-of-custody complete? • 0 0 0 Dates,times and location of sampling • Name of individual performing the sampling Results of analysis and calibration U Dates of analysis • Name of person performing analyses • Transported COCs Are DMRs complete:do they include all permit parameters? • 0 0 0 Has the facility submitted its annual compliance report to users and DWQ? • 0 0 0 (If the facility is=or>5 MGD permitted flow)Do they operate 2417 with a certified operator • 0 0 0 on each shift? Is the ORC visitation log available and current? • 0 0 0 Is the ORC certified at grade equal to or higher than the facility classification? • 0 0 0 Is the backup operator certified at one grade less or greater than the facility classification? • 0 0 0 Is a copy of the current NPDES permit available on site? • 0 0 0 Facility has copy of previous year's Annual Report on file for review? • 0 0 0 Comment: COC should indicate that samples are being shipped on ice. Records reviewed were well organized and well maintained. DMR's and lab reports were reviwed for months of March. June.September.and December 2015. Influent Sampling Yes No NA NE Page# 3 Permit N0003e277 Owner- McDowell CreskwWTP inspection Date: 05/11/2016 Inspection Type: Compliance Evaluation Influent Sampling Yes No NA NE #Is composite sampling flow proportional? • 0 0 0 Is sample collected above side streams? • 0 0 0 Is proper volume collected? • 0 0 0 Is the tubing clean? • 0 0 0 #Is proper temperature set for sample storage(kept at less than or equal to 6.0 degrees • 0 0 0 Celsius)? Is sampling performed according to the permit? • 0 0 0 Comment: Influent composite sampler temperature was recorded as 4 decrees celsius at time of inspection. Sampler appeared to be operating properly. Effluent Sampling Yes No NA NE Is composite sampling flow proportional? • 0 0 0 Is sample collected below all treatment units? • 0 0 0 Is proper volume collected? • 0 0 0 Is the tubing dean? • 0 0 0 #Is proper temperature set for sample storage(kept at less than or equal to 6.0 degrees • 0 0 0 Celsius)? Is the facility sampling performed as required by the permit(frequency,sampling type • 0 0 0 representative)? Comment: Temperature of effluent sampler was recorded as 3 decrees celsius at time of inspection. It was noted that sampler tubing is changed monthly. Upstream I Downstream Sampling Yes No NA NE Is the facility sampling performed as required by the permit(frequency,sampling type,and • 0 0 0 sampling location)? Comment: • Operations&Maintenance Yes No NA NE Is the plant generally dean with acceptable housekeeping? • 0 0 0 Does the facility analyze process control parameters,for ex:MLSS,MCRT,Settleable • 0 0 0 Solids,pH,DO, Sludge Judge,and other that are applicable? Comment 30 min settability test was conducted on mixed liquors under aeration. After about 5 minutes mixed liquors settled to around 80-75%with a well defined clear liquid above solids blanket. Equalization Basins Yes No NA NE Is the basin aerated? 0 0 • 0 Is the basin free of bypass lines or structures to the natural environment? • 0 0 0 Page* 4 1 Permit NC0038277 Owner-pad*: McDowell Creek N NTP Inspection Deb: 05/11/2018 Ind Type: Compliance Evaluation Equalization Basins Yes No NA NE Is the basin free of excessive grease? • 0 0 0 Are all pumps present? • 0 0 0 Are all pumps operable? • 0 0 0 Are float controls operable? 0 0 • 0 Are audible and visual alarms operable? 0 0 • 0 #Is basin size/volumesdequate? • 0 0 0 Comment: Bar Screens - Yes No NA NE Type of bar screen a.Manual 0 b.Mechanical • Are the bars adequately screening debris? • 0 0 0 Is the screen free of excessive debris? • 0 0 0 Is disposal of screening in compliance? • 0 0 0 Is the unit in good condition? • 0 0 0 Comment: Grit Removal Yes No NA NE Type of grit removal a.Manual 0 b.Mechanical • Is the grit free of excessive organic matter? • 0 0 0 Is the grit free of excessive odor? • 0 0 0 #Is disposal of grit in compliance? • 0 0 0 Comment: Primary Clarifier - Yes No NA NE Is the clarifier free of black and odorous wastewater? • 0 0 0 Is the site free of excessive buildup of solids in center well of circular clarifier? • 0 0 0 Are weirs level? • 0 0 0 Is the site free of weir blockage? • 0 0 0 Is the site free of evidence of short-circuiting? • 0 0 0 Page* 5 f ' Permit N00036277 Owner-Facility: terpowee Creek WNW MgpecUon Date: 05/112018 Inspection Type: Compliance Evaluation Primary Clarifier Yes No NA NE Is scum removal adequate? • 0 0 0 Is the site free of excessive floating sludge? ■ 0 0 0 Is the drive unit operational? • 0 0 0 Is the sludge blanket level acceptable? • 0 0 0 Is the sludge blanket level acceptable?(Approximately' of the sidewall depth) • 0 0 0 Comment: Nutrient Removal Yes No NA NE #Is total nitrogen removal required? • 0 0 0 #Is total phosphorous removal required? • 0 0 0 Type Biological #Is chemical feed required to sustain process? ■ 0 0 0 Is nutrient removal process operating properly? ■ 0 0 0 Comment: Aeration Basins Yes No NA NE Mode of operation Ext Air Type of aeration system Diffused Is the basin free of dead spots? • 0 0 0 Are surface aerators and mixers operational? • 0 ❑ 0 Are the diffusers operational? • 0 0 0 Is the foam the proper color for the treatment process? • 0 0 0 Does the foam cover less than 25%of the basin's surface? • 0 0 0 Is the DO level acceptable? ■ 0 0 0 Is the DO level acceptable?(1.0 to 3.0 mg/I) • 0 0 0 Comment: Chemical Feed Yes No NA NE Is containment adequate? • 0 0 0 Is storage adequate? • 0 0 0 Are backup pumps available? • 0 0 0 Is the site free of excessive leaking? ■ 0 0 0 Comment: Page* 6 1 I Pam* NC003e277 Owner-Facility: McDoweN Creak WNW Inspection Data: 05/11/2016 Inspection Typo: Compliance Evaluation Secondary Clarifier Yes No NA NE Is the clarifier free of black and odorous wastewater? • 0 0 0 Is the site free of excessive buildup of solids in center well of circular clarifier? • 0 0 0 Are weirs level? U 0 0 0 Is the site free of weir blockage? • 0 0 0 Is the site free of evidence of short-circuiting? • 0 0 0 Is scum removal adequate? • 0 0 0 Is the site free of excessive floating sludge? • 0 0 0 Is the drive unit operational? • 0 0 0 Is the return rate acceptable(low turbulence)? U 0 0 0 Is the overflow clear of excessive solids/pin floc? • 0 0 0 Is the sludge blanket level acceptable?(Approximately%of the sidewall depth) ,• 0 0 0 Comment: Pumps-RAS-WAS Yes No NA Ng Are pumps in place? • 0 0 0 Are pumps operational? • 0 0 0 Are there adequate spare parts and supplies on site? 0 0 0 • Comment: Filtration Minh Rate TertiaM Yes No NA NE Type of operation: Down flow Is the filter media present? • 0 0 0 Is the filter surface free of dogging? ■ 0 0 0 Is the filter free of growth? • 0 0 0 Is the air scour operational? • 0 ❑ 0 Is the scouring acceptable? • 0 0 0 Is the clear well free of excessive solids and fitter media? • 0 0 0 Comment: Disinfection-W Yes No NA NE Are extra UV bulbs available on site? • 0 0 0 Are UV bulbs dean? • 0 0 0 Is UV intensity adequate? • 0 0 0 Paget 7 Pmt NC0036277 owner-paciulty: McDowell Creek wwrP Inspection DN: 06/11/2016 inspection Type: Compliance Evaluation Disinfection- UV Yes No NA NE Is transmittance at or above designed level? • 0 0 0 Is there a backup system on site? • 0 0 0 Is effluent dear and free of solids? • 0 0 0 Comment: Effluent Pipe Yes No NA NE Is right of way to the outfall properly maintained? U 0 0 0 Are the receiving water free of foam other than trace amounts and other debris? • 0 0 0 If effluent (diffuser pipes are required) are they operating properly? 0 0 • 0 Comment: At time of inspection effluent was dear with no visible suspended wilds. Foam at point of discharae disipates 50-60 feet downstream. Aerobic Diaester Yes No NA NE Is the capacity adequate? ■ 0 0 0 Is the mixing adequate? • 0 0 0 Is the site free of excessive foaming in the tank? • 0 0 0 #Is the odor acceptable? • 0 0 0 #Is tankage available for properly waste sludge? • ❑ 0 0 Comment: Solids Handlina Equipment Yes No NA NE Is the equipment operational? ■ 0 0 0 Is the chemical feed equipment operational? • 0 0 0 Is storage adequate? • 0 0 0 Is the site free of high level of solids in filtrate from filter presses or vacuum fillers? • 0 0 0 Is the site free of sludge buildup on belts and/or rollers of filter press? • 0 0 0 Is the site free of excessive moisture in belt filter press sludge cake? • 0 0 0 The facility has an approved sludge management plan? • 0 0 0 Comment: Facility was dewatering sludge at time of inspection.The filtrate from dewaterina units is collected into a filtrate eaualization basin and returned back to the head of the treatment system. Dewatered bio-wilds are land applied by contract with Synaaro under Permit No. WQ0000057. Standby Power Yes No NA NE Is automatically activated standby power available? • 0 0 0 Page* 8 • 4 t • Permit NC0038277 Owner•pasty: McDowell Creek WwTP Inspection Dab: 05/11/2016 Inspection Type; Compliance Evaluation Standby Power yes No NA NE Is the generator tested by interrupting primary power source? • 0 0 0 Is the generator tested under load? • 0 0 0 Was generator tested&operational during the inspection? 0 0 0 U Do the generator(s)have adequate capacity to operate the entire wastewater site? • 0 0 0 Is there an emergency agreement with a fuel vendor for extended run on back-up power? • 0 0 0 Is the generator fuel level monitored? • 0 0 0 Comment: Flow Measurement-Influent Yes No NA NE #Is flow meter used for reporting? • 0 0 0 Is flow meter calibrated annually? • 0 0 0 Is the flow meter operational? • 0 0 0 (If units are separated)Does the chart recorder match the flow meter? 0 0 • 0 Comment: • Page# 9