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Home My WebLink AboutNC0047384_Inspection_20200204ROY COOPER Governor MICHAEL S. REGAN Secretary LINDA CULPEPPE . Director NORTH CAROLINA Environmental Quality February 4, 2020 City of Greensboro Attn: Steven Drew, Director Water Resources Department P.O. Box 3136 Greensboro, NC 27402-3136 SUBJECT: Compliance Evaluation Inspection TZ Osborne WWTP, NCO047384 Guilford County Dear Mr. Drew: Ron Boone, of the NC Division of Water Resources (DWR), Winston-Salem Regional Office (WSRO), visited the TZ Osborne WWTP on January 28th, 2020, to perform a Compliance Evaluation Inspection (CEI). The assistance and cooperation of Bradley Flynt, Elijah Williams, Martie Groome, and Alicia Goots, was greatly appreciated. Details of the inspection are recorded on the attached EPA Water Compliance Inspection Report. You're reminded that, in accordance with NC General Statute 143-215.6A, failure to comply with all conditions of the permit subjects the City to civil penalties not to exceed $25,000.00 per violation, per day. If you have any questions or require further assistance, please contact Mr. Boone by phone at 336-776-9690, or by email at ron.boone@ncdenr.gov. You may also contact me by phone at 336-776- 9700, or by email at lon.snider@ncdenr.gov. Sincerely, ELDocuSiTgned by:VA l 5, ac, Lon'`. nicer, Regional Supervisor Water Quality Regional Operations Section Winston-Salem Regional Office Division of Water Resources, NCDEQ Attachments: EPA Water Compliance Inspection Report cc: LaserFiche D E Q�p North Carolina Department of Environmental Quality I Division of Water Resources Winston-Salem Regional Office 1 450 Hanes Mill Road, Suite 300 1 Winston-Salem, North Carolina 27105 NORTH C. 0LINA o•o•°^•mme""°""•"viu"•i� /� 336.776.9800 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 1 2 15 I 3 I NC0047384 111 12 I 20/01/28 I17 18 I S J 19 L G] 201 I 211111 I I I I I I II I I I I I I I I I I I I I 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 ------------------- 671 70 I I 71 I I 72 I r I 73 I I 174 751 I I I I I I I80 u ty I I i 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:OOAM 20/01/28 14/07/01 T.Z. Osborne WWTP 2350 Huffine Mill Rd Exit Time/Date Permit Expiration Date Mc Leansville NC 27301 12:OOPM 20/01/28 19/06/30 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data Bradley Todd Flynt/ORC/336-433-7262/ Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Steven Drew,PO Box 3136 Greensboro NC 274023136//336-373-2055/3364126305 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 Ron Boone Docusigned by: DWR/WSRO WQ/336-776-9690/ osiaead300.,� 2/4/2020 B20F8DD5F2A3460... Signature of Management Q A Reviewer —Signed by: Agency/Office/Phone and Fax Numbers Date ET smAr 2/4/2020 DB49E225C94EA... EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page# NPDES yr/mo/day Inspection Type NCO047384 I11 12, 20/01/28 117 18 JCJ Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) There were no deficiencies or violations noted during this inspection. The facility was operating very well during the inspection. The effluent was clearer than the water upstream of the discharge point. Page# Permit: NCO047384 Owner - Facility: T.Z. Osborne WWTP Inspection Date: 01/28/2020 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: Permit is expired and is under review. Permit's plant description does NOT include the flow equalization systems. Plant is undergoing extensive expansion from 40 to 56 MGD. Biological nutrient removal processes are currently being installed by retrofitting existing aeration basins to enable compliance with stricter effluent nutrient limitations. Additional final clarifiers are also being constructed. Operators stated during inspection that construction is on schedule and they anticipate no delays. 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)? 0 ❑ ❑ ❑ 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 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? ❑ ❑ ❑ Page# 3 Permit: NCO047384 Owner - Facility: T.Z. Osborne WWTP Inspection Date: 01/28/2020 Inspection Type: Compliance Evaluation Record Keeping Yes No NA NE Comment: None 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: None Influent Sampling Yes No NA NE # Is composite sampling flow proportional? ❑ 0 ❑ ❑ Is sample collected above side streams? 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 sampling performed according to the permit? 0 ❑ ❑ ❑ Comment: None 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 ❑ ❑ ❑ representative)? Comment: None Upstream / Downstream Sampling Yes No NA NE Page# 4 Permit: NC0047384 Owner - Facility: T.Z. Osborne WWTP Inspection Date: 01/28/2020 Inspection Type: Compliance Evaluation Upstream / Downstream Sampling Yes No NA NE Is the facility sampling performed as required by the permit (frequency, sampling type, and 0 ❑ ❑ ❑ sampling location)? Comment: Permittee is not currently monitoring upstream/downstream because of it's membership in the Upper Cape Fear River Basin Association. Flow Measurement - Influent Yes No NA NE # Is flow meter used for reporting? 0 ❑ ❑ ❑ Is flow meter calibrated annually? M ❑ ❑ ❑ Is the flow meter operational? 0 ❑ ❑ ❑ (If units are separated) Does the chart recorder match the flow meter? ❑ ❑ 0 ❑ Comment: Reports to Supervisory Control & Data Acquisition (SCADA) System. There are no stand alone recorders. 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? M ❑ ❑ ❑ Comment: Reports to Supervisory Control & Data Acquisition (SCADA) System. There are no stand alone recorders. Pump Station - Influent 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: Reports to Supervisory Control & Data Acquisition (SCADA) System. Equalization Basins Is the basin aerated? Is the basin free of bypass lines or structures to the natural environment? Is the basin free of excessive grease? 1[M►[•7►/_M►1M • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Yes No NA NE ❑ ■ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ Page# 5 Permit: NC0047384 Inspection Date: 01/28/2020 Owner - Facility: T.Z. Osborne WWTP Inspection Type: Compliance Evaluation Equalization Basins Yes No NA NE Are all pumps present? 0 ❑ ❑ ❑ Are all pumps operable? 0 ❑ ❑ ❑ Are float controls operable? 0 ❑ ❑ ❑ Are audible and visual alarms operable? 0 ❑ ❑ ❑ # Is basin size/volume adequate? 0 ❑ ❑ ❑ Comment: Reports to Supervisory Control & Data Acquisition (SCADA) System. Bar Screens Yes No NA NE Type of bar screen 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: Screenings are landfilled. Grit Removal Yes No NA NE Type of grit removal a.Manual ❑ b.Mechanical Is the grit free of excessive organic matter? 0 ❑ ❑ ❑ Is the grit free of excessive odor? 0 ❑ ❑ ❑ # Is disposal of grit in compliance? 0 ❑ ❑ ❑ Comment: Grit is landfilled. Grit looks outstanding and has very little odor. Primary 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 ❑ ❑ ❑ Page# 6 Permit: NCO047384 Owner - Facility: Inspection Date: 01/28/2020 Inspection Type: T.Z. Osborne WWTP Compliance Evaluation Primary Clarifier Yes No NA NE Is the site free of excessive floating sludge? 0 ❑ ❑ ❑ Is the drive unit operational? 0 ❑ ❑ ❑ Is the sludge blanket level acceptable? 0 ❑ ❑ ❑ Is the sludge blanket level acceptable? (Approximately'/ of the sidewall depth) 0 ❑ ❑ ❑ Comment: None - clarifiers look excellent. Aeration Basins Yes No NA NE Mode of operation Ext. Air Type of aeration system Diffused Is the basin free of dead spots? 0 ❑ ❑ ❑ Are surface aerators and mixers operational? 0 ❑ ❑ ❑ Are the diffusers operational? S ❑ ❑ ❑ 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) 0 ❑ ❑ ❑ Comment: Mixed liquor looks excellent. Mixing and aeration are excellent. 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'/4 of the sidewall depth) 0 ❑ ❑ ❑ Comment: None - clarifiers look excellent. Pumps-RAS-WAS Yes No NA NE Page# 7 Permit: NC0047384 Inspection Date: 01/28/2020 Owner - Facility: T.Z. Osborne WWTP Inspection Type: Compliance Evaluation Pumps-RAS-WAS Yes No NA NE Are pumps in place? 0 ❑ ❑ ❑ Are pumps operational? 0 ❑ ❑ ❑ Are there adequate spare parts and supplies on site? 0 ❑ ❑ ❑ Comment: None Filtration (High Rate Tertiary) Yes No NA NE Type of operation: Cross flow Is the filter media present? 0 ❑ ❑ ❑ Is the filter surface free of clogging? ❑ ❑ ❑ Is the filter free of growth? ❑ ❑ ❑ Is the air scour operational? ❑ ❑ ❑ Is the scouring acceptable? ❑ ❑ ❑ Is the clear well free of excessive solids and filter media? ❑ ❑ ❑ Comment: Filter media is a fabric (carpet) type material that is suspended nearly vertically. Water flows over and thru the material and is backwashed according to preset pressure differentials (head loss). Filters operate very differently from traditional sand filters. Filters are doing an excellent iob and all six were in operation during the inspection. Disinfection -Liquid Is there adequate reserve supply of disinfectant? (Sodium Hypochlorite) Is pump feed system operational? Is bulk storage tank containment area adequate? (free of leaks/open drains) 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? 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 • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ■ ❑ ❑ ❑ Liquid ❑ ■ ❑ ❑ ❑ ❑ ■ ❑ ❑ ■ ❑ ❑ ❑ ❑ ■ ❑ Page# 8 Permit: NCO047384 Owner - Facility: T.Z. Osborne WWTP Inspection Date: 01/28/2020 Inspection Type: Compliance Evaluation De -chlorination Yes No NA NE Are tablet de -chlorinators operational? ❑ ❑ 0 ❑ Number of tubes in use? Comment: None 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 ❑ Comment: None Solids Handling Equipment Yes No NA NE Is the equipment operational? 0 ❑ ❑ ❑ Is the chemical feed equipment operational? 0 ❑ ❑ ❑ Is storage adequate? 0 ❑ ❑ ❑ Is the site free of high level of solids in filtrate from filter presses or vacuum filters? 0 ❑ ❑ ❑ Is the site free of sludge buildup on belts and/or rollers of filter press? 0 ❑ ❑ ❑ Is the site free of excessive moisture in belt filter press sludge cake? 0 ❑ ❑ ❑ The facility has an approved sludge management plan? 0 ❑ ❑ ❑ Comment: None Chemical Feed Yes No NA NE Is containment adequate? 0 ❑ ❑ ❑ Is storage adequate? 0 ❑ ❑ ❑ Are backup pumps available? 0 ❑ ❑ ❑ Is the site free of excessive leaking? 0 ❑ ❑ ❑ Comment: None 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: None Page# 9 Permit: NC0047384 Inspection Date: 01/28/2020 Owner - Facility: T.Z. Osborne WWTP Inspection Type: Compliance Evaluation Standby Power Is automatically activated standby power available? Is the generator tested by interrupting primary power source? Is the generator tested under load? Was generator tested & operational during the inspection? 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? Comment: None Yes No NA NE ■ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ Page# 10