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Home My WebLink AboutNC0028916_Compliance Evaluation Inspection_20170921ater es-oi rces ENtfiVONKrWAL QUALFTY September 21, 2017 Benny Ray Dennis Town of Troy 315 N Main St Troy, NC 27371 SUBJECT: Compliance Inspection Report Troy WWTP NPDES WW Permit No. NCO028916 Montgomery County Dear Permittee: R.OY COOPEK Gawp f NffCHAEL S. REGANI &—=Ot RECEIVEDINC1DE0jDWR SEP 2 6 2017 Water Quality ion permittingec The North Carolina Division of Water Resources conducted an inspection of the Troy WWTP on 8/22/2017. This inspection was conducted to verify that the facility is operating in compliance with the conditions and limitations specified in NPDES WW Permit No. NC0028916. The findings and comments noted during this inspection are provided in the enclosed copy of the inspection report entitled "Compliance Inspection Report". Comments •There were no significant issues or findings noted during the inspection and therefore, a response to this inspection report is not required. *Facility was clean and neat in appearance at the time of the inspection. •The April 2017 lab sheets were compared to the monthly eDMR and no transcription errors were found at that time. *One of the influent pumps may be leaking a little wastewater. Please repair to ensure the pump is operating at peak performance and to help prevent costly repairs in the future. •Maintenance records indicated that the generator is tested routinely however it is not tested under load. Please contact a reputable generator maintenance company to determine the best way to exercise the generator under load. *Please remember to document all maintenance activities in the maintenance log. State of North Carolina I Environmental Quality I Water Resources 225 Green Street, Suite 714, Fayetteville, NC 28301-5043 910-433-3300 •A Whole Effluent Toxicity test was collected using a 24-hour composite sample collected on August 22 and 26, 2017 for use in a chronic Ceriodaphnia pass/fail toxicity test. These samples were sent to the Division of Water Resources (Aquatic Toxicity) Laboratory in Raleigh, NC. The Whole Effluent Toxicity pass/fail test resulted in a "PASS" result. The test results indicated that the Outfall 001 Effluent would not be predicted to have water quality impacts on the receiving stream-Densons Creek in the Yadkin -Pee Dee River Basin. If you should have any questions, please do not hesitate to contact Mark Brantley with the Water Quality Regional Operations Section in the Fayetteville Regional Office at 910-433-3300 or via email at mark.brantley@ncdenr.gov. Sincerely, Mark Brantley, Environmental Program Consultant Water Quality Regional Operations Section Fayetteville Regional Office Division of Water Resources, NCDEQ ATTACHMENTS Cc: WQS Fayetteville Regional Office - Enforcement File NPDES Compliance/Enforcement Unit - Enforcement File State of North Carolina I Environmental Quality I Water Resources 5 Green Street, Suite 714, Fayetteville, NC 28301-5043 910433-3300 United States Environmental Protection Agency Form Approved EPA Washington, D C 20460 OMB No 2040-0057 Water Compliance Inspection Report Approval expires B-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 EI 3 I NCO028916 I11 121 17/08/22 I17 18 JBI 19 I G I 201 21111111 1111111 11 11 1 11 1111 1 1 11111 1111111 11 1 1 166 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA -------Reserved------ 67 70 IL71 — 72 L 73 174 751 I I I I I_ 80 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 permit Number) 10 15AM 17/08/22 15/08/01 Troy WWTP 650 Glen Rd Exit Time/Date Permit Expiration Date Troy NC 27371 02 OOPM 17/08/22 19/06/30 Name(s) of Onsite Representative(s)/Tltles(s)/Phone and Fax Number(s) Other Facility Data /// Bryan K Bowles/ORC/704-474-41911 Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Benny Ray Dennis,315 N Main St Troy NC 27371//910-572-7841/9105723663 No Section C Areas Evaluated During Inspection (Check only those areas evaluated) Permit N Flow Measurement Operations & Maintenanc6 Records/Reports Self-Monitonng Program N Sludge Handling Disposal Facility Site Review Effluent/Receiving Waters Section D Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) (See attachment summary) i Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date Mark Brantley FRO WQ//910-433-3300 Ext 727/ Johnathan C Watts /� / FRO WQ//910-433-3300/ a' /r/ Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date Trent Allee��49- FRO WQ//910-433-3300/ EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete Page# NPDES 31 NCO028916 I" yr/mo/day Inspection Type 12 17/08/22 17 18 ID I (Cont ) Section D Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Comments There were no significant Issues or findings noted during the Inspection and therefore, a response to this Inspection report Is not required Faculty was clean and neat in appearance at the time of the Inspection The April 2017 lab sheets were compared to the monthly eDMR and no transcription errors were found at that time One of the Influent pumps maybe leaking a little wastewater Please repair to ensure the pump is operating at peak performance and to help prevent costly repairs in the future Maintenance records indicated that the generator is tested routinely however it is not tested under load Please contact a reputable generator maintenance company to determine the best way to exercise the generator under load Please remember to document all maintenance activities In the maintenance log A Whole Effluent Toxicity test was collected, using a 24-hour composite sample collected on August 22 and 26, 2017 for use in a chronic Cenodaphnia pass/fall toxicity test These samples were sent to the Division of Water Resources (Aquatic Toxicity) Laboratory in Raleigh, NC The Whole Effluent Toxicity pass/fall test resulted in a "PASS" result The test results Indicated that the Outfall 001 Effluent would not be predicted to have water quality Impacts on the receiving stream-Densons Creek in the Yadkin -Pee Dee River Basin Page# Permit NCO028916 Inspection Date 08/22/2017 Owner - Facility. Troy WWTP Inspection Type Bioassay Compliance Operations & Maintenance 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. process controls used- pH, dissolved oxygen, and sludge fudge 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? Comment 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? Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ Yes No NA NE ❑ ❑ E ❑ ■ ❑ ❑ ❑ ❑ ❑ M ❑ M ❑ ❑ ❑ ■ ❑ ❑ ❑ Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ❑ ❑ ■ ❑ M ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Page# 3 Permit. NC0028916 Owner - Facility Troy WWTP Inspection Date 08/22/2017 Inspection Type Bioassay Compliance Record Keeping Yes No NA NE Facility has copy of previous year's Annual Report on file for review? 0 ❑ ❑ ❑ Comment 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? 0 ❑ ❑ ❑ If effluent (diffuser pipes are required) are they operating properly? ❑ ❑ 0 ❑ Comment Flow Measurement - Influent Yes No NA NE # Is flow meter used for reporting? M ❑ ❑ ❑ Is flow meter calibrated annually? M ❑ ❑ ❑ Is the flow meter operational? M ❑ ❑ ❑ (If units are separated) Does the chart recorder match the flow meter? ❑ ❑ M ❑ Comment Aerobic Digester Yes No NA NE Is the capacity adequate? M ❑ ❑ ❑ Is the mixing adequate? M ❑ ❑ ❑ Is the site free of excessive foaming In the tank? 0 ❑ ❑ ❑ # Is the odor acceptable? M ❑ ❑ ❑ # Is tankage available for properly waste sludge? M ❑ ❑ ❑ Comment Solids Handling Equipment Yes No NA NE Is the equipment operational? M ❑ ❑ ❑ 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? M ❑ ❑ ❑ Is the site free of excessive moisture In belt filter press sludge cake? ❑ ❑ ❑ E The facility has an approved sludge management plan? ❑ ❑ 0 ❑ Page# 4 Permit NC0028916 Inspection Date 0 8/2 212 01 7 Owner -Facility Troy WWTP Inspection Type Bioassay Compliance Solids Handling Equipment Yes No NA NE Comment Sludge Is disposed of at the landfill Equipment was not In operation at the time of the- inspection heInspectlon 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 Bar Screens 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 Grit Removal Type of grit removal a Manual b Mechanical Is the grit free of excessive organic matter? Is the grit free of excessive odor? # Is disposal of grit In compliance? Comment Secondary Clarifier Is the clarifier free of black and odorous wastewater? Yes No NA NE E ❑ ❑ ❑ E ❑ ❑ ❑ ■ ❑ 1:11:1 • ❑ ❑ ❑ • ❑ ❑ ❑ ❑ ❑ ❑ N ❑ ❑ ❑ ■ Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ N ❑ ❑ ❑ Yes No NA NE N ❑ ❑ ❑ Page# 5 Permit. NCO028916 Owner -Facility Troy WWTP Yes No NA NE Are the aerators operational? M ❑ Inspection Date 08/22/2017 I Inspection Type Bioassay Compliance ❑ Are the aerators free of excessive solids build up? 0 ❑ Secondary Clarifier Yes No NA NE Is the site free of excessive buildup of solids In center well of circular clarifier? M ❑ ❑ ❑ 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? 0 ❑ ❑ ❑ Is the site free of excessive floating sludge? 0 ❑ ❑ ❑ Is the drive unit operational? N ❑ ❑ ❑ Is the return rate acceptable (low turbulence)? E ❑ ❑ ❑ Is the overflow clear of excessive solids/pin floc? 0 ❑ ❑ ❑ Is the sludge blanket level acceptable? (Approximately % of the sldewall depth) N ❑ ❑ ❑ Comment Sludge blankets were approximately 2 5 feet Oxidation Ditches Yes No NA NE Are the aerators operational? M ❑ ❑ ❑ Are the aerators free of excessive solids build up? 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? M ❑ ❑ ❑ Are settleometer results acceptable (> 30 minutes)? ❑ ❑ ❑ N Is the DO level acceptable?(1 0 to 3 0 mg/1) 0 ❑ ❑ ❑ Are settelometer results acceptable?(400 toi 800 ml/I In 30 minutes) ❑ ❑ ❑ 0 Comment Disinfection - UV Yes No NA NE Are extra UV bulbs available on site? N ❑ ❑ ❑ Are UV bulbs clean? N ❑ ❑ ❑ Is UV intensity adequate? N ❑ ❑ ❑ Is transmittance at or above designed level? ❑ ❑ ❑ Is there a backup system on site? 0 ❑ ❑ ❑ Is effluent clear and free of solids? 0 ❑ ❑ ❑ Comment Chlorine tablets are on site Standby Power Yes No NA NE Page# 6 I I Permit. NCO028916 Owner - Facility Troy WWTP Inspection Date 08/22/2017 Inspection Type Bioassay Compliance 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 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? Yes No NA NE M ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ■ ❑ ❑ ❑ ❑ ❑ ❑ ■ ■ ❑ ❑ ❑ Yes No NA NE ❑ ❑ ■ ❑ ■ ❑ ❑ ❑ M ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ■ ❑ ❑ ❑ Comment A new certified thermometer Is need or you may take the existing thermometer and perform a comparison study with a NIST certifed thermometer 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 Upstream / Downstream Sampling Is the facility sampling performed as required by the permit (frequency, sampling type, and sampling location)? Comment Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ ■ ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ E ❑ ❑ ❑ Yes No NA NE M ❑ ❑ ❑ Page# 7 #abed eouegdwoo besseoig adA.L uoi;oodsul L4OZ/ZZ/90 a;ep u017aadsul dlmm f,oj1 /41113u j - jaweo M9Z000N ;uwad Division of Water Resources September 11, 2017 MEMORANDUM To Trent Allen Water Quality Regional Operations, FRO Through: Cindy A Moore Supervisor, Aquatic Toxicology Branch (ATB) From. Carol Hollenkamp (� Quality Assurance Officer, Aquatic Toxicology Branch (ATB) Subject: Whole effluent toxicity test results Troy WWTP NPDES Permit # NCO028916/001 Montgomery County The aquatic toxicity test using flow -proportional composite samples of effluent discharged from the Troy WWTP has been completed. Troy WWTP has a permitted_effluent discharge of 1.2 million gallons per day (MGD) entering Denson's Creek (7Q10 of 0.35 CFS). Whole effluent samples were collected on August 22 and August 24 by Mark Brantley and Jonathan Watts for use in a chronic Cenodophnio dubs pass -fail toxicity test The test passed. Toxicity test information follows. Test Type Test Result Test Concentrations Control Survival Control Mean Reproduction Test Treatment Survival Treatment Mean Reproduction First Sample pH First Sample Conductivity First Sample Total Residual Chlorine Second Sample pH Second Sample Conductivity Second Sample Total Residual Chlorine 3 -Brood Cenodaphna dubia chronic pass -fail Pass 84% 100 27.1 neonates 100% 27 8 neonates 774 SU 741 micromhos/cm <0 1 mg/L 7.75 SU 715 micromhos/cm 0 11 mg/L Test results for the above samples indicate that the effluent would not be predicted to have water quality impacts. Please contact us if you have any questions or if further effluent toxicity monitoring is desired We may be reached at (919) 743-8401 Basin. Yadkin -Pee Dee cc Mark Brantley (FRO)