The URL can be used to link to this page

Home My WebLink AboutNC0023299_NOD2022PC0052_20220422ROY COOPER Governor ELIZABETH S. BISER Secretary RICHARD E. ROGERS, JR. Director NORTH CAROLINA Environmental Quality April 22, 2022 Yes WI Utilities Exp LLC Attn: Karen E. Hamilton, Operations Vice President 5050 South Syracuse Street, Ste 1200 Denver, CO 80237 SUBJECT: Compliance Evaluation Inspection & Notice of Deficiency NOD#: NOD-2022-PC-0052 Woodlake Wastewater Treatment Plant NPDES Permit Number NC0023299 Guilford County Dear Ms. Hamilton: Mr. Ron Boone, of the NC Division of Water Resources (NCDWR), Winston-Salem Regional Office (WSRO), conducted a compliance evaluation inspection of the Woodlake mobile home park wastewater treatment plant, on March 23, 2022. Mr. Boone met with Randy Bell, Operator in Responsible Charge (ORC), and Bradley Flynt, Backup ORC. Their assistance and cooperation were greatly appreciated. Inspection findings are detailed in the attached Water Compliance Inspection Report and summarized below. - The comminutor is not listed in the permit's plant description. - The aeration header may be too small. - There is no spare pump on hand for the influent pump station. - The pump station's telemetry system should be evaluated as it did not call the ORC's cell phone, as it was purportedly programmed to do, the first several times the telemetry system was triggered/tested. - The pump station's audible/visual alarms did not operate properly during the inspection. This must be repaired within 30 days of reception of this inspection report. - The flow meter is due for calibration in March, 2022. - The backup ORC is performing more visitation than he is allowed to do by regulation. This needs to be adjusted or the backup ORC designated as the ORC. Please be aware that the Division may take enforcement action against any permittee who fails to comply with any requirement of their permit. Pursuant to NC General Statute (NCGS) 143-215.6A, a civil penalty of not more than twenty-five thousand dollars ($25,000.00) may be assessed against any person who violates or fails to act in accordance with the terms, conditions, or requirements of any permit issued pursuant to G.S. 143-215.1. GDE NORTH C CLI JA ' D. mmmr� .orennt o�.i North Carolina Department of Environmental Quality I Division of Water Resources Winston-Salem Regional Office 1450 W. Hanes Mill Rd, Suite 300 I Winston-Salem, North Carolina 27105 336.776.9800 If you have any questions or concerns, please do not hesitate to contact Mr. Boone by phone at 336-776-9690, or by email at ron.boone@ncdenr.gov. Thank you in advance for your time and attention to this matter. Sincerely, [Docufby:< Signed -0A, l c�A.aCc" 145B49E225C94EA... Lon T. Snider, Regional Supervisor Water Quality Regional Operations Section Winston-Salem Regional Office Division of Water Resources, NCDEQ Attachments: 1. Water Compliance Inspection Report cc: Laserfiche Randy Bell, ORC (via email randall.bell@greensboro-nc.gov) D_E NORTH CAROLINA gaparMeM of Environment,/quay North Carolina Department of Environmental Quality I Division of Water Resources Winston-Salem Regional Office 1450 W. Hanes Mill Rd, Suite 300 I Raleigh, North Carolina 27105 336.776.9800 United States Environmental Protection Agency EPA Washington, D.C. 20460 Water Compliance Inspection Report Form Approved. OMB No. 2040-0057 Approval expires 8-31-98 Section A: National Data System Coding (i.e., PCS) Transaction 1 IN Code I 2 IL NPDES yr/mo/day Inspection Type Inspector Fac I 3 I NC0023299 111 121 22/03/23 117 1810I 19I S I 2011 Type 21IIIIII IIIIIIIIIII IIIIIII I IIIIII IIIIIIIIIII P6 Inspection 671 Work Days Facility Self -Monitoring I 70I Evaluation Rating I 711 B1 1 72 QA I N I 73I 1 I I Reserved 74 71 I I I I I I 180 Section B: Facility Data Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include POTW name and NPDES Dermit Number) Woodlake WWTP 215 E Sheraton Park Rd Greensboro NC 27406 Entry Time/Date 09:30AM 22/03/23 Permit Effective Date 17/01/01 Exit Time/Date 10:30AM 22/03/23 Permit Expiration Date 21/09/30 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) /// Randall Keith Bell/ORC/336-373-7514/ Other Facility Data Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Karen E Hamilton,5050 S Syracuse St Denver CO 80237//303-483-7300/ No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit Flow Measurement Operations & Maintenar Records/Reports Self -Monitoring Progran Sludge Handling DispoFacility Site Review Effluent/Receiving Wate 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 Ron Boone DWR/WSRO WQ/336-776-9690/ 1- DocuSigned by: osiaecl Boo.ue, 4/21/2022 ‘.._R)nPRnn,F9A ARn SfgnlJbusalwagement Q A Reviewer Agency/Office/Phone and Fax Numbers Date l—oti 'T. Sti'd� 4/22/2022 EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page# 1 31 NPDES yr/mo/day N C0023299 I11 121 22/03/23 117 Inspection Type 18 [j (Cont.) 1 Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Ron Boone, of the NC Division of Water Resources (DWR), Winston-Salem Regional Office, met with Randy Bell, Operator in Responsible Charge, and Bradley Flynt, Backup Operator in Responsible Charge, on 3/23/2022, to perform a compliance evaluation inspection of the Woodlake wastewater treatment plant. Below is a summary of the inspection findings. - The comminutor is not listed in the plant description area of the permit. - The operators stated the aeration header was recently replaced with too small a pipe, which can make it difficult to maintain sufficient dissolve oxygen levels in the aeration basins. Yes should evaluate upsizing the aeration header to better maintain dissolved oxygen levels. - There is no spare pump on hand for the influent pump station. - The pump station's telemetry system was not calling the ORC's phone as it was purportedly programmed to do. It did eventually call his phone, near the end of the inspection, which is unusual. Yes should have the system evaluated to eliminate bugs that may be causing the system not to be able to call the ORC's phone for some reason. - The pump station's audible and visual alarms were not operating properly at the time of the inspection. - The flow meter is due for calibration in March, 2022. - The backup ORC (Bradley Flynt) is performing more often than allowed (40%) by regulation. This needs to be corrected or Mr. Flynt needs to be reassigned as the ORC. - All reviewed documentation was compliant and all required documentation was readily available, complete, and current. Mr. Boone noted no other concerns, deficiencies, or violations. Page# 2 Permit: NC0023299 Inspection Date: 03/23/2022 Owner - Facility: Woodlake WWTP 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 El El ❑ application? Is the facility as described in the permit? El • El El # Are there any special conditions for the permit? El • El El Is access to the plant site restricted to the general public? • ❑ ❑ ❑ Is the inspector granted access to all areas for inspection? • El El El Comment: Permit plant description does not include the comminutor. Record Keeping Are records kept and maintained as required by the permit? Is all required information readily available, complete and current? Are all records maintained for 3 years (lab. reg. required 5 years)? Are analytical results consistent with data reported on DMRs? Is the chain -of -custody complete? 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? 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? Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • • ❑ ❑ ❑ • ❑ • ❑ ❑ ❑ • ❑ ▪ ❑ ❑ ❑ • ❑ ❑ ❑ Comment: According to eDMRs for January through March 2022, Backup operator, Bradley Flynt, conducted visitation on 65% of the days the ORC was required to visit in January and February, and on 70% of the days the ORC was required to visit in March, which significantly exceeds the 40% of visits the Backup ORC is allowed to conduct. The ORC, Randy Bell, must complete no less than 60 percent of the required visitations. Page# 3 Permit: NC0023299 Inspection Date: 03/23/2022 Owner - Facility: Woodlake WWTP Inspection Type: Compliance Evaluation Laboratory Are field parameters performed by certified personnel or laboratory? Are all other parameters(excluding field parameters) performed by a certified lab? # Is the facility using a contract lab? # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)? Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees? Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees? Comment: None Influent Sampling # Is composite sampling flow proportional? Is sample collected above side streams? 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? Comment: None Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ ❑ ❑ ❑ • ❑ ❑ ❑ • Yes No NA NE ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ Effluent Sampling Yes No NA NE Is composite sampling flow proportional? • ❑ El El Is sample collected below all treatment units? • ❑ ❑ ❑ Is proper volume collected? • ❑ ❑ ❑ Is the tubing clean? • ❑ ❑ ❑ # Is proper temperature set for sample storage (kept at less than or equal to 6.0 El El El • degrees Celsius)? Is the facility sampling performed as required by the permit (frequency, sampling type El ❑ El • representative)? Comment: None Upstream / Downstream Sampling Yes No NA NE Is the facility sampling performed as required by the permit (frequency, sampling type, El El El and sampling location)? Comment: None Page# 4 Permit: NC0023299 Inspection Date: 03/23/2022 Owner - Facility: Woodlake WWTP Inspection Type: Compliance Evaluation Pump Station - Influent Yes No NA NE Is the pump wet well free of bypass lines or structures? • ❑ ❑ ❑ Is the wet well free of excessive grease? • ❑ ❑ ❑ Are all pumps present? • ❑ ❑ ❑ Are all pumps operable? • ❑ ❑ ❑ Are float controls operable? • ❑ ❑ ❑ Is SCADA telemetry available and operational? ❑ • ❑ ❑ Is audible and visual alarm available and operational? ❑ • ❑ ❑ Comment: No spare pump on hand. Telemetry did NOT call ORC. Audible and visual alarms were inoperable. Bar Screens Yes No NA NE Type of bar screen a.Manual • b.Mechanical ❑ Are the bars adequately screening debris? ■ ❑ ❑ ❑ Is the screen free of excessive debris? • ❑ ❑ ❑ Is disposal of screening in compliance? • ❑ ❑ ❑ Is the unit in good condition? • ❑ ❑ ❑ Comment: None Aeration Basins Yes No NA NE Mode of operation Ext. Air Type of aeration system Diffused 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) ❑ ❑ ❑ • Comment: Operators stated that the aeration header is too small and it is difficult to maintain sufficient dissolved oxygen levels in the aeration basins. Yes should consider upsizinq the aeration header. Page# 5 Permit: NC0023299 Inspection Date: 03/23/2022 Owner - Facility: Woodlake WWTP Inspection Type: Compliance Evaluation Secondary Clarifier Is the clarifier free of black and odorous wastewater? 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? 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? Is the return rate acceptable (low turbulence)? Is the overflow clear of excessive solids/pin floc? Is the sludge blanket level acceptable? (Approximately'/4 of the sidewall depth) Comment: None Pumps-RAS-WAS Are pumps in place? Are pumps operational? Are there adequate spare parts and supplies on site? Comment: None Flow Measurement - Effluent # Is flow meter used for reporting? Is flow meter calibrated annually? Is the flow meter operational? (If units are separated) Does the chart recorder match the flow meter? Comment: There is no flow recorder...only a totalizer. Meter calibration is due in 3/22. Disinfection -Tablet Are tablet chlorinators operational? Are the tablets the proper size and type? Number of tubes in use? Is the level of chlorine residual acceptable? Is the contact chamber free of growth, or sludge buildup? Is there chlorine residual prior to de -chlorination? Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ • ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ❑ ❑ • ❑ Yes No NA NE • ❑ ❑ ❑ Page# 6 Permit: NC0023299 Inspection Date: 03/23/2022 Owner - Facility: Woodlake WWTP Inspection Type: Compliance Evaluation Disinfection -Tablet Yes No NA NE Comment: None De -chlorination Type of system ? Is the feed ratio proportional to chlorine amount (1 to 1)? Is storage appropriate for cylinders? # Is de -chlorination substance stored away from chlorine containers? Are the tablets the proper size and type? Comment: None Are tablet de -chlorinators operational? Number of tubes in use? Comment: None Effluent Pipe Is right of way to the outfall properly maintained? Are the receiving water free of foam other than trace amounts and other debris? If effluent (diffuser pipes are required) are they operating properly? Comment: None Yes No NA NE Tablet ❑ • ❑ ❑ • ❑ ❑ ❑ Yes No NA NE • ❑ ❑ ❑ ❑ ❑ • ❑ Aerobic Digester Yes No NA NE Is the capacity adequate? • ❑ ❑ ❑ Is the mixing adequate? • ❑ ❑ ❑ Is the site free of excessive foaming in the tank? • El El El # Is the odor acceptable? • El El El # Is tankage available for properly waste sludge? • ❑ El El Comment: None Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? • El El El Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable II El El El Solids, pH, DO, Sludge Judge, and other that are applicable? Comment: None Page# 7