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Home My WebLink AboutNC0028916_Inspection_20110614A7411® NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coleen H. Sullins Dee Freeman Governor Director . Secretary June 14, 2011 Greg Zephir, Town Manager Town of Troy 315 North Main Street Troy North Carolina 27371 Subject: Compliance Evaluation Inspection Town of Troy Wastewater Treatment Facility NPDES Permit No. NC0028916 Montgomery County Dear Mr. Zephir: Enclosed please find a copy of the Compliance Evaluation Inspection Report for the inspection conducted May 25, 2011. The Town was found to be in compliance with NPDES Permit No. NC0028916. Also I would like to thank Mr. Gray Walls and Mr. Joe Shields, ORC for their cooperation during the inspection. Please refer to the enclosed inspection report for observations and comments pertaining to the inspection. If you or your staff has questions pertaining to the report please do not hesitate to contact me at (910) 433-3300. Sincerely, Paul E. Rawls Environmental Program Consultant PER/per Enclosure: Inspection Report cc: Benny Dennis, ORC, Town of Troy Collection System t_ FRO Fifes (Marls Brantley); 225 Green St., Suite 714, Fayetteville, NC 28301-5043 Phone: 910-433-3300 \ FAX: 910-486-07071 Customer Service: 1-877-623-6748 Internet: www.ncwaterquality.org - An Equal Opportunity \ Affirmative Action Employer NorthCarol .ina ;Vatllrally 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 Code NPDES yr/mo/day Inspection 1 1 NI 2 1 51 31 NC0028916 1 11 121 11/05/25 1 17 Type Inspector Fac Type 1811 c1 191 sl 20I 11 I I I I I I I I I I I I I I I I66 Remarks 211 1 1 1 1 1 I I 1 I 1 I 1 J I I I I I I I L I l I 1 1 1 1 1 J Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA ----Reserved----- ----- ------ 671 169 7013I 71I 11 72INI "1 1 174 751 1 1 1 1 I 1 I80 Section B: Facility Data Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include POTW name and NPDES permit Number) Troy WWTP 650 Glen Rd Troy NC 27371 Entry Time/Date 09:36 AM 11/05/25 Permit Effective Date 10/01/01 Exit Time/Date 01:30 PM 11/05/25 Permit Expiration Date 14/06/30 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) /// Joseph Edward Shields/ORC/910-572-3661/ Other Facility Data Name, Address of Responsible Official/Title/Phone and Fax Number Contacted E. Gray Walls,444 N Main St Troy NC 27371//910-572-7841/9105723663 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 Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) (See attachment summary) Name(s) and Signature(s) of Inspectors) Agency/Office/Phone and Fax Numbers Paul Rawls Division of Water Quality//919-733-5083/ Date —7y"Z0// Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date FRO WQ//910-433-3300 Ext.726/ • le— 16.4 ./ Belinda S Henson '41 / r4 / EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page # 1 NPDES yr/mo/day Inspection Type N00028916 111 121 11/05/25 117 18ICI (cont.) 1 Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Facility was neat and appeared to be well maintained. All requested records were available. Mr. Shields indicated that the WWTF had experienced som e limited filamentous problems. He had already had a sample analyzed and is preparing to address the issue should it cause more of a settling problem. A spot check of Discharge Monitoring Reports and laboratory data revealed no problems. A review of Priority Pollutant Analysis (PPSA) revealed no issues for the data reviewed. Flow meter calibration was recorded as required. Page # 2 Permit: NC0028916 Owner - Facility: Troy WVVTP Inspection Date: 05/25/2011 Inspection Type: Compliance Evaluation Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? ■ n n n Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge ■ n n n Judge, and other that are applicable? Comment: Wastewater Treatment Facilty site was very neat and well kept. Permit Yes No NA NE (If the present permit expires in 6 months or less). Has the permittee submitted a new application? n n ■ n Is the facility as described in the permit? ■ n n n # Are there any special conditions for the permit? n n ■ Is access to the plant site restricted to the general public? ■ n n n Is the inspector granted access to all areas for inspection? ■ n n n Comment: Aerobic Digester Yes No NA NE Is the capacity adequate? ■ n n n Is the mixing adequate? ■ n n n Is the site free of excessive foaming in the tank? ■ n n n # Is the odor acceptable? ■ ❑ ❑ ❑ # Is tankage available for properly waste sludge? ■ n n n Comment: Facility pilot tested a portable centrifuge during the last twelve months with no immediate plans to make the unit permanent. Bar Screens Yes No NA NE Type of bar screen a.Manual n b.Mechanical ■ Are the bars adequately screening debris? ■ n n n Is the screen free of excessive debris? ■ n n n Is disposal of screening in compliance? ■ ❑ n n Is the unit in good condition? ■ n n n Comment: Mr. Shields indicated in a post inspection conversation that screening container will be drained back into WWTF. Grit Removal Yes No NA NE Type of grit removal Page # 3 Permit: NC0028916 Owner- Facility: Troy WWTP Inspection Date: 05/25/2011 Inspection Type: Compliance Evaluation 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: 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? Are all pumps present? Are all pumps operable? Are float controls operable? Are audible and visual alarms operable? # Is basin size/volume adequate? Comment: Excess flow is routed to a 10 acre lagoon (old treatment unit) and is then pumped back into the WWTF as necessary. 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'/e of the sidewall depth) Yes No NA NE n ■ ■ n.nn ■ nnn ■ nnn Yes No NA NE n ■nn ■ nnn ■ nnn ■ nnn ■ nnn n n■n n n■n ■ nnn Yes No NA NE ■ nnn ■ nnn ■ nnn mono ■ nnn ■ nnn ■ nnn mono ■ nnn ■ nnn ■ nnn Page # 4 Permit: NC0028916 Owner - Facility: Troy WWTP Inspection Date: 05/25/2011 Inspection Type: Compliance Evaluation Secondary Clarifier Comment: Clarifiers appeared to be working well and were free of observable problems. Oxidation Ditches Are the aerators operational? Are the aerators free of excessive solids build up? # 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? 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 ml/I in 30 minutes) Comment: The two (2) oxidation ditches are operated in series. Disinfection - UV Are extra•UV bulbs available on site? Are UV bulbs clean? Is UV intensity adequate? Is transmittance at or above designed level? Is there a backup system on site? Is effluent clear and free of solids? Comment: 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: Effluent Sampling Yes No NA NE Yes No NA NE ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn nnn■ n nn■ ❑ ❑ ❑ ■ Yes No NA NE ■ nnn ■ nnn ■ nnn nnn■ ■ nnn ■ nnn Yes No NA NE nn■n ■ ❑ ❑ ❑ ■ nnn n nn■ ■ nnn n nn■ ■ nnn Yes No NA NE Page # 5 Permit: NC0028916 Owner - Facility: Troy VWVTP Inspection Date: 05/25/2011 Inspection Type: Compliance Evaluation 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: 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: 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: Yes No NA NE ■ ❑ ❑ ❑ ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn Yes No NA NE ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn. Yes No NA NE ■ nnn ■ nnn ■ nnn ■ nn■ Page # 6