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Home My WebLink AboutNC0025453_Compliance Evaluation Inspection_20191121ROY COOPER Cave for MICHAEL S. REGAN Secretary LINDA CULPEPPER Director NORTH CAROLINA Environmental Quality November 21, 2019 Adam Lindsay, Town Manager Town of Clayton PO Box 879 Clayton, NC 27520 Subject: NPDES Compliance Evaluation Inspection Town of Clayton — Little Creek Water Reclamatiori Facility NPDES Permit # NC0025453 Johnston County Dear Mr. Lindsay: **This inspection report is for an inspection that was done on June 3, 2019. An inspection report was drafted, but based on a recent database review, it was never sent to the Town of Clayton, and is therefore being sent on November 21, 2019.** On June 3, 2019, Jason Robinson of the NC Division of Water Resource's Raleigh Regional Office (RRO) conducted a compliance evaluation inspection of the Town of Clayton's Wastewater Collection System. The time and assistance of Clayton staff James Warren (Operator in Responsible Charge (ORC) and Bill Simpson (Backup Operator in Responsible Charge (bORC) and Laboratory Supervisor) was appreciated. The Division's Basinwide Information Management System (RIMS) report is attached. Below is a list of finding and recommendations developed from this inspection: The current permit was reissued and became effective August 01, 2013 and expired on March 31, 2018. A permit renewal application was received by the Division on September 29, 2017. Additional information was requested on December 11, 2018 and provided. 2. The county plans to construct anew wastewater treatment plant that will replace this plant with an approximate operation start date of late 2023 or 2024. The plant is classified as a WW-4 wastewater facility. The ORC (James Warren) and bORC (William Simpson) are both WW-4 operators. bORCs David Atkinson and Salvador Valdiviezo are WW-3 operators. Detailed daily operation log books are kept on -site and are kept at least five years. 4. The facility is currently permitted to discharge up to 2.5 MGD. The Town also has contracts with the City of Raleigh and Johnston County to send 1 and 1.34 MGDs (respectively) to their facilities. 5. The facility's 2017-2018 Wastewater Annual Report was available for review and is on Clayton's website. �DREF Q North Carolina Department of Environmental Quality I Division of Water Resources Raleigh Regional Office 1628 Mad Service Center, Raleieh, NC 27699-1628 6. The facility reported a BOD Weekly Average Exceedance for the week ending in April 13, 2019 during an excessive rain event. 7. The laboratory was checked in a cursory manner. Clayton WRF lab analyzes 80D, TSS and Fecal Coliform and is field certified for TRC, pH, temperature, DO and specific Conductance. Environment One, Cameron and Meritech are used to analyze other parameters. Calibration logs were present. pH buffers were within expiration dates. Fecal and BOD incubators, sample refrigerators and influent and effluent sampler were kept at proper temperatures, and logbooks were kept for these. Environment One, Cameron and Meritech are used to analyze other parameters. 8. Discharge Monitoring Reports (DMRS) for October 2018 and March 2019 were reviewed and compared with lab bench sheets; no discrepancies were found. Chain of custody forms were complete. 9. The 2.5 MGD Wastewater Treatment Facility consists of the of the following units: a) Influent head works with a biofilter odor control system; b) Mechanical and automatic bar screens; c) Vortex type grit removal system; d) Influent pump station with three (3) 60-Hp dry pit submersible pumps and one (1) 40-Hp pump; e) 9-inch Parshall flume with ultrasonic flow meter; f) One (1) 214,500-gallon anaerobic selector tank in front of the first stage anoxic tank; g) One (1) 200,000-gallon first stage anoxic tank in front of oxidation basin # 1; h) One (1) 300,000-gallon first stage anoxic tank in front of oxidation basin # 2; i) Two (2) — oxidation basins; j) Three (3) secondary clarifiers; k) Return Activated Sludge pump station; 1) Two (2) shallow bed DAVCO traveling bridge type tertiary filters; m) UV disinfection, two banks, with back-up chlorination / dechlorination; n) Effluent pump station; o) One (1) 90,000-gallon aerated digester/sludge stabilization tank; p) Two (2) - 360,000-gallon aerated sludge holding tanks; q) Sludge loading station; r) Sludge thickening building containing two (2) rotary drum thickeners with polymer flocculation; s) Sludge transfer pump station; t) Sludge drying beds; (Not used) u) In -plant non -potable water system using reclaimed treated wastewater; v) Reclaimed water pump station and transmission force main to the Pine Hollow Golf Course and w) Two (2) on -site generators and one portable generator to provide back-up power. 7elf :t Based on the inspection, this facility was found to be in compliance. I would like to thank everyone who provided their time and assistance with this inspection. If you have any questions concerning the inspection or this letter, please contact Jason Robinson at 919.791.4200 or via email at Jason.T.Robinson ncdenr. ov Sincerely, S. Jay Zimmerman P.G., Chief Water Quality Regional Operations Section Raleigh Regional Office Division of Water Resources, NCDEQ cc: Central files (via Laserfiche) James Warren, ORC: 'iowarren@townofclavtonnc.ore Rich Cappola, Director of Public Services: rcappola@townofclavtonnc.org IMF United Stales Environmental Protection Agency Form Approved. EPA Washington, O.C. 20460 OMB No. 2040-0057 Water Compliance Inspection Report Approval expires8-31.98 Section A: National Data System Coding (i.e., PCS) Transaction Code NPDES yrlmolday Inspection Type Inspector Fac Type 1 U 2 15 1 3 NCO025453 11 121 19106/03 117 18 1 C 1 19 u to u ,I 211 1 1 1 1 1 1 1 1 1.1 1 1 1 1 1 1 1 1 1 1 III I I I I I I I, I I I I I I_I�I I I r6 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 OA Reserved 67 701 l 71 itJI 72 v 73174 751 1 1 1 1 1 1 ISO 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 NPDE5 permit Number) 01:0013M 19/06/03 14/05/01 Little Creek WWTP Exit TimelDate Permit Expiration Dale P 1000 Durham 5t Clayton NC 27520 03.30PM 19/06/03 18/03/31 Name(s) of Onsite Representative(s)/Titles(s)1Phone and Fax Number(s) I Other Facility Data 11l James O Warren/ORC1919-553-15361 Name. Address of Responsible Ofc alMile/Phone and Fax Number Contacted Steven Siggs,PO Box 879 Clayton NC 275201Town Manar-er1919-553-5866/9195531541 Yes Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit 0 Flow Measurement 0 Operations & Maintenance 0 RecordslReports Sludge Handling Disposal 0 Effluent/Receiving Waters E 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) AgencylOMcelPhone and Fax Numbers ❑are Jason T Robinson DWRIRRO W01919-791-4200+ r Signature of Mana� 4 A Reviewer AgencylOfticelPhone and Fax Numbers pars EPA Form 3560-ev 9-94) Previous editions are obsolete page# NPOES yrlmolday Inspection Type 31 NC0025453 I11 121 19/05/03 17 18 t „ t Section D, Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Page# Permit: NC002W3 Owner -Facility: L Ille Creek WWTP Inspection Date: 06103/2019 Inspection Type: Complcance 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: Permit (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? Yes No NA NE ■ ❑ ❑ ❑ M ❑ ❑ ❑ Yes No NA NE ■ ❑ ❑ ❑ Comment: Permit expired on March 31 2018. Permit renewal applicaiton submitted on September 29. 2017. 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? M ❑ ❑ ❑ Are all records maintained for 3 years (lab. reg. required 5 years)? M ❑ ❑ ❑ Are analytical results consistent with data reported on DMRs? 0 ❑ ❑ ❑ Is the chain -of -custody complete? M ❑ ❑ ❑ 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? 0 ❑ ❑ ❑ Has the facility submitted its annual compliance report to users and DWQ? 0000 (If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator ❑ ❑ M ❑ on each shift? Page# 3 Permit: NCO025453 Owner -Facility: Liltle Creek WWTP Inspection Date: 06/03/2019 Inspection Type: Compliance Evaluation Record Keening Yes No NA NE Is the ORC visitation log available and current? E ❑ ❑ ❑ Is the ORC certified at grade equal to or higher than the facility classification? 0 ❑ ❑ ❑ 1s the backup operator certified at one grade less or greater than the facility classification? 0 ❑ ❑ ❑ Is a copy of the current NPDES permit available on site? 0 ❑ ❑ ❑ Facility has copy of previous year's Annual Report on file for review? 0 ❑ ❑ ❑ Comment: Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? N ❑ ❑ ❑ Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable ❑ ❑ ❑ Solids, pH, DO, Sludge Judge, and other that are applicable? Comment: Grit Removal Yes No NA NE Type of grit removal a.Manual ❑ b.Mechanical Is the grit free of excessive organic matter? E ❑ ❑ ❑ Is the grit free of excessive odor? 0 ❑ ❑ ❑ # Is disposal of grit in compliance? N ❑ ❑ ❑ Comment: 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: Flow Measurement - Influent Yes No NA NE Page# 4 Permit: NCO025453 Owner - Facility: L file Creek WWTP Inspection Date: 0610312019 Inspection Type: Compliance Evaluation Flow Measurement - Influent Yes No NA NE # Is flow meter used for reporting? ❑ M ❑ ❑ Is flow meter calibrated annually? 0❑ ❑ ❑ Is the flow meter operational? 0 ❑ ❑ ❑ (If units are separated) Does the chart recorder match the flow meter? N ❑ ❑ ❑ Comment: -Effluent Flow Re orted 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? 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? 0 ❑ ❑ 0 Comment: Nutrient Removal Yes No NA NE # Is total nitrogen removal required? 0 ❑ 0 ❑ # Is total phosphorous removal required? M ❑ ❑ ❑ Type Biological # Is chemical feed required to sustain process? 110 ❑ ❑ Is nutrient removal process operating properly? M ❑ ❑ ❑ Comment: Oxidation Ditches Yes No NA NE Are the aerators operational? 0 ❑ ❑ ❑ Are the aerators free of excessive solids build up? 0 ❑ ❑ ❑ # Is the foam the proper color for the treatment process? 0 ❑ Cl ❑ Does the foam cover less than 25% of the basin's surface? 0 ❑ ❑ ❑ Is the DO level acceptable? 0 ❑ ❑ ❑ Are settleometer results acceptable (> 30 minutes)? ❑ ❑ ❑ Is the DO level acceptable?(1.0 to 3.0 mg/I) ❑ ❑ ❑ Are settelometer results acceptable?(400 to 800 mill in 30 minutes) ❑ ❑ ❑ Page# 5 Permit: NCO025453 Owner - Facility: Little Creek WWTP Inspection Date: 06/0312019 Inspection Type: Compliance Evaluation Oxidation Ditches Yes No NA NE Comment: Secondary Clarifier Yes No NA NE Is the clarifier free of black and odorous wastewater? N ❑ ❑ ❑ Is the site free of excessive buildup of solids in center well of circular clarifier? M ❑ ❑ ❑ Are weirs level? M ❑ ❑ ❑ Is the site free of weir blockage? 0 ❑ ❑ ❑ Is the site free of evidence of short-circuiting? M ❑ ❑ ❑ Is scum removal adequate? 0 ❑ ❑ ❑ Is the site free of excessive Floating sludge? M ❑ ❑ ❑ Is the drive unit operational? ■ ❑ ❑ ❑ Is the return rate acceptable (low turbulence)? M ❑ ❑ ❑ Is the overflow clear of excessive solids/pin floc? 0 ❑ ❑ ❑ Is the sludge blanket level acceptable? (Approximately'/. of the sidewall depth) 0 ❑ ❑ ❑ Comment: Pum s-RAS-WAS Yes No NA NE Are pumps in place? N ❑ ❑ ❑ Are pumps operational? M ❑ ❑ ❑ Are there adequate spare parts and supplies on site? 0 ❑ ❑ ❑ Comment: Filtration (High Rate Tertiary) Yes No NA NE Type of operation: Down flow Is the filter media present? 0000 Is the filter surface free of clogging? 0 ❑ ❑ ❑ Is the filter free of growth? M ❑ ❑ ❑ Is the air scour operational? M ❑ ❑ ❑ Is the scouring acceptable? M ❑ ❑ ❑ Is the clear well free of excessive solids and filter media? 0 ❑ ❑ ❑ Comment: Disinfection - UV Yes No NA NE Page# 6 Permit: NC0025453 Inspection Date: 06/0312019 Owner -Facility: LI"ILCreekwwTP Inspection Type: Compliance Evaluation Disinfection - UV Yes No NA NE Are extra UV bulbs available on site? M ❑ ❑ ❑ Are UV bulbs clean? 0❑ ❑ ❑ Is UV intensity adequate? 0 ❑ ❑ ❑ Is transmittance at or above designed level? 0 ❑ ❑ ❑ Is there a backup system on site? 0 ❑ ❑ ❑ Is effluent clear and free of solids? M ❑ ❑ ❑ Comment: Flow Measurement - Effluent Yes No NA NE # Is flow meter used for reporting? M ❑ ❑ ❑ Is flow meter calibrated annually? ■ ❑ ❑ ❑ Is the flow meter operational? M ❑ ❑ ❑ (If units are separated) Does the chart recorder match the flow meter? M ❑ ❑ ❑ Comment: Reclaimed water subtracted from effluent flow for reporting Effluent Pipe Yes No NA NE Is right of way to the outfall properly maintained? M ❑ ❑ ❑ Are the receiving water free of foam other than trace amounts and other debris? M ❑ ❑ ❑ If effluent (diffuser pipes are required) are they operating properly? ■ ❑ ❑ ❑ Comment: Pump Station - Effluent Yes No NA NE Is the pump wet well free of bypass lines or structures? 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? N ❑ ❑ ❑ Comment: Standby Power Yes No NA NE Is automatically activated standby power available? M ❑ ❑ ❑ Is the generator tested by interrupting primary power source? M ❑ ❑ ❑ Page# 7 Permit: NC0025453 Inspection Date: 06/03/20143 Standby Power Is the generator tested under load? Owner - Facility: little Creek wwTP inspection Type: Compliance Evaluation 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: 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: Solids Handling Equipment Is the equipment operational? Is the chemical feed equipment operational? Is storage adequate? Is the site free of high level of solids in filtrate from filter presses or vacuum filters? Is the site free of sludge buildup on belts and/or rollers of filter press? 1s the site free of excessive moisture in belt filter press sludge cake? The facility has an approved sludge management plan? Comment: Yes No NA NE ■ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ M ❑ ❑ ❑ ■ ❑ ❑ ❑ Yes No NA NE ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ 0000 ■ ❑ ❑ ❑ ❑ ❑ ❑ ■ Yes No NA NE ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ M ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ❑ ■ Page# a