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Home My WebLink AboutNC0024970_Compliance Evaluation Inspection_20160525 PAT MCCRORY Governor r.a DONALD R. VAN DER VAART Secretary Water Resources S. JAY ZIMMERMAN ENVIRONMENTAL QUALITY Director May 25, 2016 RECEIVED/NCDEQ/DVVR Ms. Jacqueline A. Jarrell, P.E., Superintendent Environmental Management Division MAY 3 1 2016 Charlotte Mecklenburg Utilities Water Quality 4222 Westmont Drive Charlotte, North Carolina 28217 Permitting Section SUBJECT: Compliance Evaluation Inspection McAlpine Creek WWTP NPDES Permit NC0024970 Mecklenburg County, NC Dear Ms. Jerrell: On May 12, 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. 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 or Roberto Scheller at (704) 235- 2204 or roberto.scheller@ncdenr.gov. Sincerely, i , W. Corey Basinger, Regional Supervisor Water Quality Regional Operations Section Division of Water Resources, NCDEQ Enclosure: Inspection Report cc: Sandy Neely, 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 1 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 Probalon Agency Form Approved. EPA wahinglm,D.C.20400 OMB Na 2040-0057 Water Compliance Inspection Report Appoval maims 8-31.95 Section A:National Data System Coding(i.e.,PCS) Transection Code NPDES yr/mo/day Inspection Type Inspector Fac Type 1 El 2 3 I NC0024970 111 121 16/05/12 117 18I ( 19I c I 201 I 21111111 1111111 11 11 1 11 1111 1 1 11111 1111111 11 11 r Inspection Work Days Facility Self-Monitoring Evaluation Rating B1 DA Roomed- 67 ees ved 671 1 70 LJ I. L I 71 I I 72 I I I 731 1 174 751 11 I 1 1 1 180 Section B:FacilityData L_1 Name and Location of Facility Inspected(For Industrial Users discharging to POTW,also include Entry Time/Date Pent Effective Date POTW rine and NPDES permit Number) 10:05AM 18/05/12 14/013/01 McAlpine Creek WNW 12701 Lancaster Hwy Exit Time/Date Permit Expiration Date Pineveb NC 23134 02:10PM 1&05/12 . 1e/02/2s Name(s)of Omits Repreaentatve(s)/ritles(s)/Phone and Fax Numbers) Other Fealty Data ll! Sandy Kim Neely/ORC/704-542-0736/ Name,Address of Responsible OtI lfTlB&Phone and Fax Number Contacted Jacqueline A Janell,4222 Westmont Dr Charlotte NC 282171030//704-338-4480/7043385081 No Section C:Areas Evaluated During Inspection(Check only those areas evaluated) • Permit • Flow Measurement • Operations&Maidenance II Records/Reports • Self-Monitoring Program • Sludge Handling Disposal • Facility Site Review • Effluent/Receiving Waters III Laboratory Section D:Summary of Finding/Comments(Attach additional sheets of narrative and chectdists as necessary) (See attachment summary) Names)end Signature(s)of Inepeclor(s) Agency/Office/Phone and Fax Numbers Date Roberto Scheller MRO WO//252-948-8481/ 4 - � Signature of Management O A Reviewer Agency/Me/Phone and Fax Numbers Date W. Corey Basinger MRO WQ/1704-235-2194/ .t EPA Fon 9680-3pPçnsarnobsolete. - .�]., y r� any 4 Paget 1 NPDES yr/mo/day Inepecton Type 1 31 NC0024970 111 121 18105/12 117 18 Lie. Section D:Summary of Finding/Comments(Math additional sheets of narrative and dleddists as necessary) page# 2 Permit NC0024970 'Darner-Facility: McAlpine Creek wwTP Inspection tate: 05/12/2019 Inspection Type: Compience 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? ■ 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: The subject permit expired on 02/31/2016. permit under review. Influent Sampling Yea No NA NE #Is composite sampling flow proportional? • 0 0 0 Is sample collected above side streams? • ❑ 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 8.0 degrees • 0 0 0 Celsius)? Is sampling performed according to the permit? • 0 0 0 Comment: At time of inspection influent sampler was noted at 1.3 degree C. • 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 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 the facility sampling performed as required by the permit(frequency,sampling type • 0 0 ❑ representative)? Comment: At time of inspection effluent sampler noted at 1.2 degrees C. Upstream/Downstream Sampling Yos 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 Yea No NA NE Page# 3 Parrett NC0024970 Owner-Facility: McAlpine Creek WNW Inspection Data: 05/122018 inspection Type: Compliance Evaluation 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 ❑ Solids, pH,DO, Sludge Judge,and other that are applicable? Comment: First 5 mins. of 30 min. settability test noted activated sludge settled out quickly to about 45%with clear column of liquid above and visible suspended soilds. ORC noted solids in MLSS is being brought down from higher levels for winter operation. 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 Is the basin free of excessive grease? • 0 0 0 Are all pumps present? • 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 sizeNolume adequate? • 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? U 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 Page# 4 Permit NC0024970 Owner-Facility: McJlpine Creek WHIP Inspection Date: 05/12/2019 Inspection type: Compliance Evaluation Grit Removal - Yes No NA NFe #Is disposal of grit in compliance? • 0 ❑ 0 Comment: Primary Clarifier Yes No NA NE Is the clarifier free of blade and odorous wastewater? 0 0 0 IN Is the site free of excessive buildup of solids in center well of circular clarifier? 0 0 0 II 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 ❑ • Is scum removal adequate? 0 0 0 IN Is the site free of excessive floating sludge? 0 0 ❑ U Is the drive unit operational? 0 0 0 • Is the sludge blanket level acceptable? 0 0 0 U Is the sludge blanket level acceptable?(Approximately Ye of the sidemall depth) 0 0 0 IN Comment: Primary Gaffers are covered for odor control and not easly acessable. 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 • 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? U 0 0 0 Is the DO level acceptable? • 0 0 0 Is the DO level acceptable?(1.0 to 3.0 mgA) • 0 0 0 Comment: Facility is in process of replacing diffusers. Nutrient Removal Yes No NA NE #Is total nitrogen removal required? 0 0 • 0 #Is total phosphorous removal required? • 0 0 0 Type Chemical #Is chemical feed required to sustain process? • 0 0 0 Page# 5 WrrrYt NC0024970 Owner-Facility: McAlpns Creek W WTP Inspection Date: 05/1V2016 Inspection Type: Compliance Evaluation Nutrient Removal Yes No NA NE Is nutrient removal process operating properly/? • 0 0 0 Comment: Phosphorus is chemically reduced/removed by use of ferric chloride and by use of anaerobic zones in aeration basins. 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? • ❑ 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 Is the return rate acceptable(low turbulence)? • 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 NE Are pumps in place? • ❑ 0 0 Are pumps operational? • 0 0 0 Are there adequate spare parts and supplies on site? • 0 0 0 Comment: Chemical Feed Yes No NA NE Is containment adequate? • 0 0 0 Is storage adequate? • ❑ 0 0 Are backup pumps available? • 0 0 0 Is the site free of excessive leaking? • 0 0 0 Comment: Filtration (Rich Rate Tertiarvi Yes No NA NE Type of operation: Is the filter media present? • 0 0 0 Pages 6 Permit NC0024970 Owner-Facility: McAlpine Creek VNNTP Wpeeaon Daft 05/12/2016 Inepectlon Typo; Compliance Evaluation Filtration (High Rate Tertiarvl Yes No NA NFe Is the filter surface free of dogging? • 0 ❑ 0 Is the filter free of growth? • 0 0 0 Is the air scour operational? • 0 0 0 Is the scouring acceptable? • 0 0 0 Is the dear well free of excessive solicit and fitter media? • 0 0 0 Comment Disinfection-Liquid Yes No NA NE Is there adequate reserve supply of disinfectant? • 0 0 0 (Sodium Hypochlorite)Is pump feed system operational? • 0 0 0 Is bulk storage tank containment area adequate?(free of leaks/open drains) • 0 0 0 Is the level of chlorine residual acceptable? • 0 0 0 Is the contact chamber free of growth,or sludge buildup? • 0 0 0 Is there chlorine residual prior to de-chlorination? • 0 0 0 Comment: Dechlorination Yes No NA NE Type of system? Liquid Is the feed ratio proportional to chlorine amount(1 to 1)? • 0 0 0 Is storage appropriate for cylinders? 0 0 • 0 #Is de-chlorination substance stored away from chlorine containers? 0 0 0 0 Comment: Are the tablets the proper size and type? 0 0 II 0 Are tablet de-chlorinators operational? 0 0 ■ 0 Number of tubes in use? Comment: Aqueous Sodium Biosulfite is used for dechlorination. Effluent Pipe Yes No NA NE Is right of way to the outfall properly maintained? • 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: Effluent was dear with no visible suspended solids. Foam was noted at discharge point but disipated 75- 100 yards down stream. Pagee 7 Permit NC0024970 Owner-Facility: McAlpine Creek WWrP Inspection Dab: 05/12/2016 Inspection Type: Compliance Evelwtlon Effluent Pipe Yes No NA NE Anaerobic Digester Yea No NA NE Type of operation: • Fixed cover , Is the capacity adequate? • 0 0 ❑ #Is gas stored on site? • 0 0 0 Is the digester(s)free of tilting covers? • 0 0 ❑ Is the gas burner operational? • ❑ 0 0 Is the digester heated? • 0 0 0 Is the temperature maintained constantly? • 0 0 0 Is tankage available for properly waste sludge? • ❑ 0 0 Comment: Facility has gravity belt thickners and centrifuges to dewater sludge. Dewatered sludge is taken to landfill or land applied by Synagro under Permit No.WQ0000057. Standby Power Yes No NA NE Is automatically activated standby power available? • ❑ 0 0 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 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 Comment: Facility has 6 standby generators that are tested monthly. Page# 8