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Home My WebLink AboutNC0060755_Inspection_20190326ROY COOPER Governor MICHAEL S. REGAN Secretary LINDA CULPEPPER Director NORTH CAROLINA Er W&Wn erstgf Qegorrty March 25, 2019 Mr. Bryce Mendenhall, VP of Operations Carolina Water Services, Inc of NC P.O. Box 240908 Charlotte, NC 28224 Subject: Compliance Evaluation Inspection Saddlewood Subdivision WWTP NPDES Permit No. NCO060755 Gaston County Dear Mr. Mendenhall: Enclosed is a copy of the Compliance Evaluation Inspection for the inspection conducted at the subject facility on March 20, 2019, by Ori Tuvia and Maria Schutte. Lila Bleigh's and Charles Wood's cooperation during the site visit were much appreciated. Please advise the staff involved with this NPDES Permit by forwarding a copy of the enclosed report. The following concerns were observed at the time of the inspection: 1. At the time of inspection, the flow meter was past due for calibration (was due on 10/9/2018). However, the calibration was performed the day following this inspection. 2. The chlorine meter calibration curve was done to 20 ug/I, which is above the 17 ug/L permit limit. The calibration curve must be done to a value less than 17 ug/L. 3. When reporting chlorine value, please record less than (<) for all values less than the meter calibrated value. 4. Although the bar screen was in compliance at the time of inspection, the bar screen appeared undersized. It is recommended that you consider the installation of a larger capacity bar screen. State of North Carolina I Environmental Quality I Water Resources I Water Quality Regional Operations Mooresville Regional Office 1 610 East Center Avenue, Suite 3011 Mooresville, North Carolina 28115 704 663 1699 The report should be self-explanatory; however, should you have any questions concerning this report, please do not hesitate to contact Ori Tuvia at (704) 235-2190, or at ori.tuvia@ncdenr.gov. Sincerely, DocuSigned by: A14CC681 AF27425... W. Corey Basinger Regional Supervisor Mooresville Regional Office Division of Water Resources Cc: NPDES, MRO Files (Laserfiche) 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 I 2 15 I 3 I NCO060755 111 12 I 19/03/20 I17 18 I S I 19 I G I 201 I 211111 1 1 I I I I II I I I I I I I I I I I I 1 I I I I I I I I I I II I I I I I f6 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA ---------------------- Reserved ------------------- 67 1.0 70 71 [„ I 72 n 73 L_LJ74 751 u u I I I I I I I80 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 oermit Number) 09:55AM 19/03/20 15/09/01 Saddlewood WWTP 335 Fair Meadows Ct Exit Time/Date Permit Expiration Date Gastonia NC 28052 11:15AM 19/03/20 20/08/31 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data Lila R Bleigh/ORC/704-525-7990/ Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Martin Lashua,PO Box 240908 Charlotte NC 282240908/Regional Director/704-319-0517/7045258174 No 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 DocuSigned by: Maria Schutte Division of Water Quality//704-663-1699 Ori A Tuvia cc— MRO WQ//704-663-1699/ 3/26/2019 EBB057A2DE017498... Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date W. Corey Basinger Division of Water Quality//704-2; EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. DocuSigned by: 3/25/2019 AtaccsatAFvazs... Page# NPDES yr/mo/day Inspection Type NCO060755 I11 121 19/03/20 117 18 JCJ Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Page# Permit: NCO060755 Owner - Facility: Saddlewood WWTP Inspection Date: 03/20/2019 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 ❑ ❑ 0 ❑ application? Is the facility as described in the permit? 0 ❑ ❑ ❑ # 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? 0 ❑ ❑ ❑ Comment: The subject permit expires on August 31, 2020. 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? 0 ❑ ❑ ❑ Are all records maintained for 3 years (lab. reg. required 5 years)? ❑ ❑ ❑ Are analytical results consistent with data reported on DMRs? 0 ❑ ❑ ❑ 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 CM Are DMRs complete: do they include all permit parameters? ❑ ❑ ❑ Has the facility submitted its annual compliance report to users and DWQ? ❑ ❑ ❑ (If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator ❑ ❑ ❑ on each shift? Is the ORC visitation log available and current? ❑ ❑ ❑ 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? ❑ ❑ ❑ Is a copy of the current NPDES permit available on site? ❑ ❑ ❑ Facility has copy of previous year's Annual Report on file for review? ❑ ❑ 0 ❑ Comment: The records reviewed during the inspection were well organized and maintained. DMRs, COC's, ORC logs and calibration logs were reviewed for the period of June 2018 through January 2019. Effluent Sampling Yes No NA NE Page# 3 Permit: NCO060755 Owner - Facility: Saddlewood WWTP Inspection Date: 03/20/2019 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? ❑ ❑ 0 ❑ # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees ❑ ❑ 0 ❑ Celsius)? Is the facility sampling performed as required by the permit (frequency, sampling type 0 ❑ ❑ ❑ representative)? Comment: The subiect Dermit reauires arab effluent samDlina. Chlorine meter calibration curve was done to 20 ug/I, which is above the 17 ug/L permit limit, the calibration curve must be done to a value less than 17 ug/L (15 or 10 ug/L). When reporting chlorine value please record less than for all values less than the meter calibrated value, if the meter is calibrated to 15 up/L for any value less than 15 ug/L use less than 15 ug/L. Laboratory Yes No NA NE Are field parameters performed by certified personnel or laboratory? 0 ❑ ❑ ❑ Are all other parameters(excluding field parameters) performed by a certified lab? 0 ❑ ❑ ❑ # Is the facility using a contract lab? 0 ❑ ❑ ❑ # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees 0 ❑ ❑ ❑ Celsius)? 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: Field analvses are Derformed under the facilitv laboratory (certification 5228). Chlorine meter calibration curve was done to 20 ug/I, which is above the 17 ug/L permit limit, the calibration curve must be done to a value less than 17 ug/L (15 or 10 ug/L). When reporting chlorine value please record less than for all values less than the meter calibrated value, if the meter is calibrated to 15 ug/L for any value less than 15 ug/L use less than 15 ug/L. Prism Labs and K&W Labs (NH3, TSS, Fecal, and BOD) have also been contracted to provide analytical support. The facility takes spilt samples for BOD and averages out the results . Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? 0 ❑ ❑ ❑ Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable ❑ ❑ ❑ Solids, pH, DO, Sludge Judge, and other that are applicable? Comment: The wastewater treatment plant appeared to be properly operated and well maintained. Bar Screens Type of bar screen Yes No NA NE Page# 4 Permit: NCO060755 Owner - Facility: Saddlewood WWTP Inspection Date: 03/20/2019 Inspection Type: Compliance Evaluation Bar Screens Yes No NA NE a.Manual b.Mechanical ❑ Are the bars adequately screening debris? ❑ 0 ❑ ❑ Is the screen free of excessive debris? 0 ❑ ❑ ❑ Is disposal of screening in compliance? 0 ❑ ❑ ❑ Is the unit in good condition? 0 ❑ ❑ ❑ Comment: The bar screen appeared to be undersized. Aeration Basins Yes No NA NE Mode of operation Ext. Air Type of aeration system Diffused Is the basin free of dead spots? N ❑ ❑ ❑ Are surface aerators and mixers operational? ❑ ❑ 0 ❑ Are the diffusers operational? 0 ❑ ❑ ❑ Is the foam the proper color for the treatment process? 0 ❑ ❑ ❑ Does the foam cover less than 25% of the basin's surface? 0 ❑ ❑ ❑ Is the DO level acceptable? 0 ❑ ❑ ❑ Is the DO level acceptable?(1.0 to 3.0 mg/1) ❑ ❑ ❑ Comment: Secondary Clarifier Yes No NA NE Is the clarifier free of black and odorous wastewater? 0 ❑ ❑ ❑ Is the site free of excessive buildup of solids 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-circuiting? 0 ❑ ❑ ❑ Is scum removal adequate? 0 ❑ ❑ ❑ Is the site free of excessive floating sludge? 0 ❑ ❑ ❑ Is the drive unit operational? ❑ ❑ 0 ❑ Is the return rate acceptable (low turbulence)? 0 ❑ ❑ ❑ Is the overflow clear of excessive solids/pin floc? 0 ❑ ❑ ❑ Is the sludge blanket level acceptable? (Approximately'/ of the sidewall depth) ❑ ❑ ❑ Comment: Page# 5 Permit: NCO060755 Owner - Facility: Saddlewood WWTP Inspection Date: 03/20/2019 Inspection Type: Compliance Evaluation Secondary Clarifier Yes No NA NE Disinfection -Liquid Yes No NA NE Is there adequate reserve supply of disinfectant? 0 ❑ ❑ ❑ (Sodium Hypochlorite) Is pump feed system operational? 0 ❑ ❑ ❑ Is bulk storage tank containment area adequate? (free of leaks/open drains) 0 ❑ ❑ ❑ Is the level of chlorine residual acceptable? 0 ❑ ❑ ❑ Is the contact chamber free of growth, or sludge buildup? 0 ❑ ❑ ❑ Is there chlorine residual prior to de -chlorination? 0 ❑ ❑ ❑ Comment: De -chlorination Yes No NA NE Type of system ? Liquid Is the feed ratio proportional to chlorine amount (1 to 1)? ❑ ❑ ❑ Is storage appropriate for cylinders? 0 ❑ ❑ ❑ # Is de -chlorination substance stored away from chlorine containers? ❑ ❑ 0 ❑ Comment: Are the tablets the proper size and type? ❑ ❑ 0 ❑ Are tablet de -chlorinators operational? ❑ ❑ 0 ❑ 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? 0 ❑ ❑ ❑ (If units are separated) Does the chart recorder match the flow meter? 0 ❑ ❑ ❑ Comment: At the time of the inspection the flow meter was past due for calibration (due on 10/9/2018) but was calibrated the next day. 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? 0 ❑ ❑ ❑ If effluent (diffuser pipes are required) are they operating properly? ❑ ❑ 0 ❑ Page# 6 Permit: NC0060755 Inspection Date: 03/20/2019 Effluent Pipe Owner - Facility: Saddlewood WWTP Inspection Type: Compliance Evaluation Comment: The effluent appeared clear with no floatable foam. 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 Yes No NA NE ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ Page# 7