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Home My WebLink AboutNC0063746_Compliance Evaluation Inspection_20230203ROY COOPER Governor ELIZABETH S. BISER Secretary RICHARD E. ROGERS, JR. Director Mr. Joel Clarke Clark Utilities, Inc. 223 US Highway 70 E, Suite 115 Garner, NC 27529 Dear Mr. Clarke: NORTH CAROLINA 8nvkVMWnhel Quality February 3, 2023 Subject: Compliance Evaluation Inspection Deer Chase W WTP NPDES Permit NCO063746 Wake County On February 2, 2023, Mitch Hayes of the Raleigh Regional Office conducted the subject inspection with your assistance. Your assistance was greatly appreciated. Below is a list of findings developed from the inspection and review of the permit. 1. The current permit was reissued and became effective February 1, 2018 and expired January 31, 2023. A permit renewal application is currently under review. Please continue to operated under the last issued permit until a new permit is issued. 2. The 0.05 MGD facility consists of the following units: Influent pump station; influent bar screen; aeration basin; two sludge holding tanks; clarifier; contact chamber (used for flow measurement purposes and backup chlorination); UV disinfection; effluent pump station; post aeration; and sludge drying beds. 3. All units were present and operational during the inspection. The two sludge holding tanks were full, but you stated that Granville Farms Inc. is scheduled this week to haul sludge. Mixed liquor in the aeration basin appeared chocolate in color. All blowers were operational. Some duckweed was present in the clarifier. Effluent flowing to the effluent pump station appeared clear. Both UV banks were operational. The audible / visual alarms function in the influent and effluent pump station activated when the high-water float was lifted. Telemetry called in a high wet well. Effluent at the discharge appeared clear with no negative effects on the creek. 4. Clark Utilities Inc. Laboratory is certified for pH, DO, and TRC. ETT Labs analyses chronic toxicity. All other parameters are analyzed by Environment 1 in Greenville. North Carolina Department of Environmental Quality I Division of Water Resources i5gQ-:24 Raleigh Regional Office 1 1800 Barrett Drive I Raleigh, North Carolina 27609 �� 919.791.4200 S. Discharge Monitoring Reports (DMRs) were reviewed for compliance and monitoring requirements for the period December 2018 through December 2022. The following was noted: monthly average violation for ammonia nitrogen for August 2022. I would like to thank you for your time and assistance with this inspection. If you have any questions about this inspection or this letter, please contact Mitch Hayes at 919.791.4261 or at mitch.hayes@ncdenr.gav . Sincerely, '7.'.G Vanessa E. Manuel, Assistant Regional Supervisor Water Quality Regional Operations Section Raleigh Regional Office Division of Water Resources, NC DEQ North Carolina Department of Environmental Quality I Division of Water Resources F Q:512 North Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 276"-1611 fp.�/ 919 707.9000 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 yrlmo/day Inspection Type Inspector Fac Type 1 1ti l 2 u 3 1 NCO063746 111 12 23102102 j 17 18 Lai r I 19 I s I 20I LJ J L 21 6 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA Reserved 67 701J I 71I 72 LNJ 73LI 74 7 1 1 1 Ljj80 Section B: FacilityData Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include Entry Time/Date Permit Effective Date POTW name and NPDES permit Number) 09:OOAM 23/02/02 18/02/01 Deer Chase WWTP ExitTime/Date Permit Expiration Date NCSR 2049 Wake Forest NC 27587 09:30AM 23/02/02 23/01/31 Name(s) of Onsite Representative(s)lTtles(s)/Phone and Fax Number(s) Other Facility Data 11/ Joel McRay Clarke//919-662-0457 /9196621207 Joel McRay Clarke/ORC1919-662-04571 Walter Kenneth Wall/ORC/919-291-63001 Name, Address of Responsible Official/Title/Phone and Fax Number Joel McRay Clarke,223 Hwy 70 E Ste 115 Gamer NC 2752940621/919-662-04571 Contacted No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit N Flow Measurement Operations & Maintenar Records/Reports Self -Monitoring Progran 0 Sludge Handling Dispo: Facility Site Review EffluentlReceiving Wate 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 t o Mitchell S Hayes DWR/RRO WQ1919-791-42001 A,./ LqkA v r/� 00 Signature of Management Q A Reviewer AgencylOffice/Phone and Fax Numbers 0414 "7, 70 23 EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page# NPDES ydmo/day Inspection Type (Cont.) NC0063746 �11 1 23/02/02 17 18 I r I Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) The current permit was reissued and became effective February 1, 2018 and expired January 31, 2023. A permit renewal application is currently under review. Please continue to operated under the last issued permit until a new permit is issued. The 0.05 MGD facility consists of the following units: Influent pump station; influent bar screen; aeration basin; two sludge holding tanks; clarifier; contact chamber (used for flow measurement purposes and backup chlorination); UV disinfection; effluent pump station; post aeration; and sludge drying beds. All units were present and operational during the inspection. The two sludge holding tanks were full, but you stated that Granville Farms Inc. is scheduled this week to haul sludge. Mixed liquor in the aeration basin appeared chocolate in color. All blowers were operational. Some duckweed was present in the clarifier. Effluent flowing to the effluent pump station appeared clear. Both UV banks were operational. The audible / visual alarms function in the influent and effluent pump station activated when the high-water float was lifted. Telemetry called in a high wet well. Effluent at the discharge appeared clear with no negative effects on the creek. Clark Utilities Inc. Laboratory is certified for pH, DO, and TRC. ETT Labs analyses chronic toxicity. All other parameters are analyzed by Environment 1 in Greenville. Discharge Monitoring Reports (DMRs) were reviewed for compliance and monitoring requirements for the period December 2018 through December 2022. The following was noted: monthly average violation for ammonia nitrogen for August 2022. Page# Permit: NCO063746 Inspection Rate: 02/02/2023 Owner - Facility: Deer Chase WWTP Inspection Type: Compliance Evaluation Operations $ Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? ■ ❑ ❑ ❑ Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable ■ ❑ ❑ ❑ Solids, pH, DO, Sludge Judge, and other that are applicable? Comment: Permit Yes No NA NE (If the present permit expires in 6 months or less). Has the permittee submitted a new ■ ❑ ❑ ❑ application? Is the facility as described in the permit? ■ ❑ ❑ ❑ # Are there any special conditions for the permit? ❑ ❑ ■ ❑ Is access to the plant site restricted to the general public? ■ ❑ ❑ ❑ Is the inspector granted access to all areas for inspection? ■ ❑ ❑ ❑ Comment: Permit expired January 31, 2023. Permit renewal is under review. Record Keepino Yes No NA NE 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? Page# 3 Pennit: NC0063746 Owner - Facility: Deer Chase WWTP Inspection date: 02/02/2023 Inspection Type: Compliance Evaluation Record Keeping Yes No NA NE Is a copy of the current NPDES permit available on site? ■ ❑ ❑ ❑ Facility has copy of previous year's Annual Report on file for review? ❑ ❑ ■ ❑ Comment: Effluent Pipe Yes No NA NE 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: Effleunt appeared clear with no negative impacts on creek. Flow Measurement - Effluent Yes No NA NE # 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: Aerobic Digester Yes No NA NE 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: Digesters were full. Granville Farms were expected this week. Drying Beds Yes No NA NE Is there adequate drying bed space? ■ ❑ ❑ ❑ Is the sludge distribution on drying beds appropriate? ■ ❑ ❑ ❑ Are the drying beds free of vegetation? ■ ❑ ❑ ❑ # Is the site free of dry sludge remaining in beds? ■ ❑ ❑ ❑ Is the site free of stockpiled sludge? ■ ❑ ❑ ❑ Is the filtrate from sludge drying beds returned to the front of the plant? ■ ❑ ❑ ❑ # Is the sludge disposed of through county landfill? ■ ❑ ❑ ❑ Page# 4 Permit: NC0063746 Owner - Facility: peer Chase WWTP Inspection Date: 02/02/2023 Inspection Type: Compliance Evaluation DrYina Beds Yes No NA NE # Is the sludge land applied? ❑ 0 ❑ ❑ (Vacuum filters) Is polymer mixing adequate? ❑ ❑ 0 ❑ Comment: Q!ying beds were not in use. Pump Station - Effluent Yes No NA NE Is the pump wet well free of bypass lines or structures? 0 ❑ ❑ ❑ Are all pumps present? ❑ ❑ [] Are all pumps operable? ❑ ❑ ❑ Are float controls operable? M ❑ ❑ ❑ Is SCADA telemetry available and operational? 0 ❑ ❑ ❑ Is audible and visual alarm available and operational? 0 ❑ ❑ ❑ Comment: 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? 0 ❑ ❑ ❑ Are all pumps present? 0 ❑ ❑ ❑ Are all pumps operable? 0 ❑ ❑ ❑ Are float controls operable? 0 ❑ ❑ ❑ Is SCADA telemetry available and operational? M ❑ ❑ ❑ Is audible and visual alarm available and operational? M ❑ ❑ ❑ 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? 0 ❑ ❑ ❑ Is disposal of screening in compliance? 0 ❑ ❑ ❑ Is the unit in good condition? 0 ❑ ❑ ❑ Comment: Page# 5 Permit: NC0063746 Owner - Facility: Deer Chase WWTP Inspection Date: 02/02t2023 Inspection Type: Compliance Evaluation 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? S ❑ ❑ ❑ Is the site free of weir blockage? N ❑ ❑ ❑ Is the site free of evidence of short-circuiting? N ❑ ❑ ❑ Is scum removal adequate? 0 ❑ ❑ ❑ Is the site free of excessive floating sludge? N ❑ ❑ ❑ Is the drive unit operational? ❑ ❑ ❑ Is the sludge blanket level acceptable? ❑ ❑ ❑ Is the sludge blanket level acceptable? (Approximately % of the sidewall depth) ❑ ❑ ❑ Comment: Rectangle clarifier 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? N ❑ ❑ ❑ Is the site free of weir blockage? N ❑ ❑ ❑ Is the site free of evidence of short-circuiting? 0 ❑ ❑ ❑ Is scum removal adequate? ❑ ❑ ❑ Is the site free of excessive floating sludge? ❑ ❑ ❑ Is the drive unit operational? ❑ ❑ 0 ❑ Is the return rate acceptable (low turbulence)? ■ ❑ ❑ ❑ Is the overflow clear of excessive solids/pin floc? 0 ❑ ❑ ❑ Is the sludge blanket level acceptable? (Approximately'/4 of the sidewall depth) ❑ ❑ ❑ 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 ❑ ❑ ❑ Are surface aerators and mixers operational? 0 ❑ ❑ ❑ Are the diffusers operational? N ❑ ❑ ❑ Is the foam the proper color for the treatment process? N ❑ ❑ ❑ Page# 6 Permit: NCO063746 Owner - Facility: Deer Chase WWTP Inspection Date: 02/02/2023 Inspection Type: Compliance Evaluation Aeration Basins Yes No NA NE 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 mgll) ■ ❑ ❑ ❑ Comment: Effluent Sampling Is composite sampling flow proportional? 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 degrees Celsius)? Is the facility sampling performed as required by the permit (frequency, sampling type representative)? Comment: Yes No NA NE ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ Upstream I Downstream Sampling Yes No NA NE Is the facility sampling performed as required by the permit (frequency, sampling type, ■ ❑ ❑ ❑ and sampling location)? Comment: Page# 7