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Home My WebLink AboutNC0028916_Inspection_20100319sAf7A NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coleen H. Sullins Governor Director March 19, 2010 Grey Walls Town of Troy 444 North Main Street . Troy, North Carolina 27371 SUBJECT: Compliance Evaluation Inspection Report Town of Troy WWTP NPDES Permit No. NC0028916 Montgomery County Dear Mr. Walls: Dee Freeman Secretary Enclosed you will find a copy of the Compliance Evaluation Inspection report for the inspection conducted on March 10, 2010, with Joe Shields (ORC). As part of the inspection a tour of the Wastewater Treatment Plant was conducted. All observations are in Section D. Summary of Findings/Comments of this inspection report. It is highly recommended that a written temperature record of the Effluent 001 sample refrigerator and the 24-hour composite sample refrigerator be kept at your facility (enclosed with this report is an example that may be adapted for items with temperature range limits). This facility appeared to be well operated and well maintained. Please keep up the good work. If you have any questions or comments concerning this report or require clarification on part(s) of this report, please contact me at (910) 433-3312. N., Sincerely, ✓`Dale Lopez Environmental Specialist Enclosures: EPA Water Compliance Inspection Report Regional Field Inspectors Check List for Field Parameters Calendar year temperature chart cc: ['FRO Files 225 Green St., Suite 714,-Fayetteville, NC 28301-5043 Phone: 910-433-3300 l FAX: 910-486-07071 Customer Service: 1-877-623-6748 Internet: www.ncwaterquality,org An Equal opportunity i Affirmative Action Employer One North Carolina Naturally United States Environmental Protection Agency E PA 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 I NI 2 151 31 NC0028916 111 121 10/03/10 117 Type Inspector Fac Type 18I CI 191 SI 20I1 1 I I I I I1IIIIIIIII66 Remarks 21IIII I I I I I I I I I I I I I I I I I I I I I I I I I 1 I Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA — -----Reserved---------- -------- 671 2.0 169 70 14 I 711 I 721 I 731 1 174 751 I I I I I I 180 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 01:00 PM 10/03/10 Permit Effective Date 10/01/01 Exit Time/Date 03:00 PM 10/03/10 Permit Expiration Date 19/06/30 Name(s) of Onsite Representative(s)fTitles(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 • Effluent/Receiving Waters Laboratory Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) (See attachment summary) t` Name(s) and 'gnature(s) of Inspector(s) / Agency/Office/Phone and Fax Numbers Date Dale Lopez ```+',' / / ° v FRO wQ//910-433-3300 Ext.712/ Signature of Management C4A Reviewer Agency/Office/Phone and Fax Numbers Date isSiac& -3/19110 EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page # 1 31 NPDES NC0028916 11 121 yr/mo/day 10/03/10 17 Inspection Type 18ICI (cont.) 1 Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Enclosed you will find a copy -of the Compliance Evaluation Inspection report for the inspection conducted on March 10, 2010, with Joe Shields (ORC). As part of the inspection a tour of the Wastewater Treatment Plant was conducted. All observations are in Section D. Summary of Findings/Comments of this inspection report. It is highly recommended to keep a written temperature record of the Effluent 001 sample refrigerator and the 24-hour composite sample refrigerator. This facility appeared to be well operated and well maintained. Please keep up the good work. Page # 2 Permit: NC0028916 Owner - Facility: Troy VWVTP Inspection Date: 03/10/2010 Inspection Type: Compliance Evaluation Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? ■ n Q 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: No reuse water at_facility. SCADA electronic sludge judge (and manual sludge judge cross-check). 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 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? ■ ❑ ❑ ❑ Comment: Record Keeping Yes No NA NE Are records kept and maintained as required by the permit? ■ n n n Is at required information readily available, complete and current? ■ n n n Are all records maintained for 3 years (lab. reg. required 5 years)? • n n El Are analytical results consistent with data reported on DMRs? ■ n n n Is the chain -of -custody complete? ■ n n n 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? ■ n n n Has the facility submitted its annual compliance report to users and DWQ? ■ n n n (If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator on each shift? n n 1 n Is the ORC visitation log available and current? ■ n n n Is the ORC certified at grade equal to or higher than the facility classification? ■ n n n Is the backup operator certified at one grade less or greater than the facility classification? ■ n n n Page # 3 Permit: NC0028916 Owner - Facility: Troy VwVTP Inspection Date: 03/10/2010 Inspection Type: Compliance Evaluation Record Keeping 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 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: Flow Measurement - Influent # 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: 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: The flow through the manual bar screen (with approximately 1 to 2 inch openings) was in series with the mechanical bar screen. The manual bar screen did not allow large material to pass through to the mechanical bar screen (stainless steel "low -flow screen" that was manufactured by Jones & Atwood). The screenings were taken to the Uharrie Landfill. Grit Removal Type of grit removal a.Manual b. Mechanical Yes No NA NE ■nnn ■ nnn Yes No NA NE ■ nnn ■ nnn nn■.n Yes No NA NE ■ nnn ■ nnn ■ nnn ■ nnn Yes No NA NE ■ ■ ■ nnn ■ nnn ■ nnn ■ nnn Yes No NA NE n ■ Page # 4 Permit: NC0028916 Owner - Facility: Troy wVVrP Inspection Date: 03/10/2010 Inspection Type: Compliance Evaluation Grit Removal Is the grit free of excessive organic matter? Is the grit free of excessive odor? # Is disposal of grit in compliance? Comment: The grit remaoval equipment was periodically aerated, then an air lift pump carried the grit up a pipe to the grit classifier for dewatering, then to a dumpster, and finally to the Uharrie Landfill. 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: When the influent flow exceeded 1.2 MGD, the flow would then enter the ten -acre equalization basin (via a valve -less pipe from the influent wet well). Each of the two influent pumps were capable of handling 1.2 MGD of flow. They alternated each time that they came on. The flow to the EQ was later fed back into the WWTP for treatment of the wastewater. 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'/4 of the sidewall depth) Yes No NA NE •nnn ■ nnn ■ nnn Yes No NA NE nn■n ■ nnn ■ nnn nnn■ ■ nnn nnn■ nn■n ■ nnn Yes No NA NE ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn Page # 5 Permit: NC0028916 Owner - Facility: Troy WVVTP Inspection Date: 03/10/2010 Inspection Type: Compliance Evaluation Secondary Clarifier Comment: 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 oxidation ditches were 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: No automatic switchover, only a manually operated generator. On an approximate monthly schedule, the generator was tested under Toad. Pumps-RAS-WAS Yes No NA NE Yes No NA NE "'Finn ■ Finn ■ Finn ■ Finn ■ Finn ■ Finn ■ Finn ■ Finn Yes No NA NE ■ Finn ■ Finn ■ Finn ■ Finn 1 n n n ■ Finn Yes No NA NE n■Fin ■ Finn ■ Finn nn■n ■ Finn ■ Finn ■ Finn Yes No NA NE Page # 6 Permit: NC0028916 Owner - Facility: Troy WN TP Inspection Date: 03/10/2010 Inspection Type: Compliance Evaluation Pumps-RAS-WAS Are pumps in place? Are pumps operational? Are there adequate spare parts and supplies on site? Comment: 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: It is highly recommend that the facility keep a temperature chart (record) for the laboratory sample refrigerator and the effluent 24-hour sample composite refrigerator. For your review, an example annual temperature range chart is enclosed with this report. It may also be adapted to other items with temperature range limits. 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: It is highly recommend to keep a temperature chart (record) for the 24-hour composite sample refrigerator. 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: Yes No NA NE ■ ODD ■ nnn ■ nnn Yes No NA NE ■ nnn ■ nnn ■ nnn ■ nnn n oun W HEW Yes No NA NE ■ nnn ■ nnn ■ nnn ■ .nnn ■ nnn ■ nnn Yes No NA NE ■ ❑ ❑ ❑ ■ nnn ■ nnn ■ nnn ■ nnn Page # 7 Regional Field Inspectors Check List for Field Parameters Name of site to be Inspected: Troy Date: 03/10/21010 Field certification # (if applicable): 5350 Inspector: Dale Lopez"It,Y^ NPDES #: NC0028916 Region: Fayetteville I. Circle the parameter or parameters performed at this site. Residual Chlorine, Settleable Solids, pH, DO, Conductivity, II. Instrumentation: A. Does the facility have the equipment necessary to analyze field parameters as circled above? Temperature 1. A pH meter Fischer Accumet pH meter 50 2. A Residual Chlorine meter 3. DO meter YS 155 4. A Cone for settleable solids 5. A thermometer or meter that measures temperature. fYS 155 6. Conductivity meter III. Calibration/Analysis: 1. Is the pH meter calibrated with 2 buffers and checked with a third buffer each day of use? fYes No Yes No Yes . No Yes No Yes No NYes No 2. For Total Residual Chlorine, is a check standard analyzed each day of use? 3. Is the air calibration of the DO meter performed each day of use? 4. For Settleable Solids, is 1 liter of sample settled for 1 hour? 5. Is the temperature measuring device calibrated annually against a certified thermometer? 6. For Conductivity, is a calibration standard analyzed each day of use? Yes No Yes No Yes No Yes No Yes No Yes No IV. Documentation: 1. Is the date and time that the sample was collected documented? 1Yes No 2. Is the sample site documented? fres No 3. Is the sample collector documented? lYes No 4. Is the analysis date and time documented? IYes No 5. Did the analyst sign the documentation? fres No 6. Is record of calibration documented? IYes No 7. For Settleable Solids, is sample volume and 1 hour time settling time documented? Yes No 8. For Temperature, is the annual calibration of the measuring device documented? Comments: pH Buffer 7 expiration date = January 2011 pH Buffer 4 expiration date = January 2011 pH Buffer 10 expiration date = April 2010 Yes No Please submit a copy of this completed form to the Laboratory Certification Program. DWQ Lab Certification Chemistry Lab Courier # 52-01-01 FIELD INSPECTOR CHECKLIST REV. 04/23/2002 Item: Calendar Year: Acceptable Temperature Range: Date Jan Feb Mar Apr . May Jun Jul Aug Sept Oct Nov Dec 1 2 3 4 5 6 . 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31