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Home My WebLink AboutNC0028916_Inspection_20070710Michael F. Easley, Governor William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Coleen H. Sullins, Director Division of Water Quality July 10, 2007 E. Gray Walls Town of Troy 444 N Main St Troy NC 27371 SUBJECT: June 27, 2007 "Compliance Evaluation Inspection Town of Troy • Troy WWTP. Permit No: NC0028916 Montgomery County Dear Mr Walls: Enclosed please find a copy of the Compliance Evaluation Inspection form from the inspection conducted on June 27, 2007. The Compliance Evaluation Inspection was conducted by Mark Brantley, Environmental Chemist, of the Fayetteville Regional Office. The cooperation of Joseph Shields, Grade III ORC, was greatly appreciated. The facility was found to be in Compliance with permit NC0028916. As a reminder, preservation of the Waters of the State can only be achieved through consistent NPDES Permit compliance. Comments • Facility was clean and neat in appearance at the time of the inspection. • Please clean underbrush from the effluent outfall line. • The effluent sampler tubing had small amounts of algae growing in it. Please replace tubing as necessary to maintain effluent sample quality. • At the time of the inspection the influent sampler did not appear to be cooling properly. Please repair if need as to maintain proper temperature (between 1-6 degrees Celsius) for collecting samples. • This facility uses a UV system for disinfection but has back-up chlorine feed system for disinfection. However the facility's NPDES permit contains a Total Residual Chlorine limit of 20 micrograms. It is suggested that a dechlor system be installed in case the chlorine feed system has to be used or in case the UV system is out of service. Another short-term option to use in case of a UV system failure is to cease discharging into the receiving stream and divert the flow to the equalization basin. Again this is only a short-term ,solution until the UV system is repaired. North Carolina Division of Water Quality/Aquifer Protection Section 225 Green St./ Suite 714 Fayetteville, NC 28301 Phone (910) 433-3300 Customer Service 1-877-623-6748 FAX (910) 486-0707 Internet: h2o.enr.state.nc.us One NorthCarolina Naturally An Equal Opportunity/Affirmative Action Employer — 50% Recycled/10% Post Consumer Paper Please refer to the enclosed inspection report for additional observations and comments. If you or your staff have any questions, please call me at 910-433-3327. Sincerely, Mark Brantley Environmental Chemist Surface Water Protection Section Fayetteville Regional Office cc: Joseph Edward Shields, ORC Central Files Fayetteville Files United States Environmental Protection Agency EPA Washington, D.C. 20460 Water Compliance Inspection Report OMB Noo.. 204 Form'Ad. 040-0057 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 1 51 31 NC0028916 111 121 07/06/27 117 Type Inspector Fac Type 181 c1 191 s1 201 1 11111111166 Remarks 2111111111111111111111 I I 1 1 1 1 1 1 1111111II] Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA Reserved 671 1 69 70 131 71 I N 1 721 NI 73 11 174 751 1 1 1 1 1 1 180 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 09:15 AM 07/06/27 Permit Effective Date 04/08/01 Exit Time/Date 11:30 AM 07/06/27 Permit Expiration Date 09/06/30 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 • Effluent/Receiving Waters 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) Agency/Office/Phone and Fax Numbers Date Mark Brantley FRO WQ//910-433-3300 Ext.727/ /4.4 _6,4.4( 7 el-0-7 Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date V '1 Belinda S Henson ?jL ,� , Q;li(�, l0 FRO WQ//910-433-3300 Ext.726/ /4 0 '— 7 EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page # 1 3 NPDES NC0028916 111 121 yr/mo/day 07/06/27 117 Inspection Type 18ICI (cont.) 1 Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Comments •Facility was clean and neat in appearanc e at the time of the inspection. •Please clean underbrush from the effluent outfall line. •The effluent sampler tubing had small amounts of algae growing in it. Please replace tubing as necessary to maintain effluent sample quality. •At the time of the inspection the influent sampler did not appear to be cooling properly. Please repair if need as to maintain proper temperature (between 1-6 degrees Celsius) for collecting samples. •This facility uses a UV system for disinfection but has back-up chlorine feed system for disinfection. However the facility's NPDES permit contains a Total Residual Chlorine limit of 20 micrograms. It is suggested that a dechlor system be installed in case the chlorine feed system has to be used or in case the UV system is out of service. Another short-term option to use in case of a UV system failure is to cease discharging into the receiving stream and divert the flow to the equalization basi n. Again this is only a short-term solution until the UV system is repaired. Page # 2 Permit: NC0028916 Owner - Facility: Troy WWTP Inspection Date: 06/27/2007 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: Facility analyzes MLSS, pH, dissolved oxygen levels, and sludge blankets for process control purposes. 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 theinspector granted access to all areas for inspection? ■ n n n Comment: Record Keeping Yes No NA NE Are records kept and maintained as required by the permit? "inn n 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? • 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 non (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? • n n n Is the ORC certified at grade equal to or higher than the facility classification? ■ 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 WWTP Inspection Date: 06/27/2007 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: Please maintain effluent outfall line right of way. 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: Flow meter was last calibrated in May of 2006. Joe Shields, ORC, stated he has plans to calibrate the meter in the near future. 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: 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? Yes No NA NE ■ nnn nn■n Yes No NA NE n■nn nnn■ nnn■ Yes No NA NE ■ nnn ■ nnn ■ nnn ■ nnn Yes No NA NE min nn ■ nnn ■ nnn ■ nnn ■ nnn Yes No NA NE ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn nn■n Page # 4 Permit: NC0028916 Owner - Facility: Troy WWTP Inspection Date: 06/27/2007 Inspection Type: Compliance Evaluation Pump Station - Influent Yes No NA NE Comment: 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? • n n n Is disposal of screening in compliance? • n n 11 Is the unit in good condition? 1 n n n Comment; Grit Removal Yes No NA NE Type of grit removal a.Manual n b.Mechanical ■ Is the grit free of excessive organic matter? ■ n n n Is the grit free of excessive odor? • ❑ ❑ ❑ # Is disposal of grit in compliance? • n n ❑ Comment: Equalization Basins Yes No NA NE Is the basin aerated? nn■n Is the basin free of bypass lines or structures to the natural environment? • n ❑ n Is the basin free of excessive grease? • ❑ n Are all pumps present? ❑ ❑ ■ n Are all pumps operable? ❑ ❑ • ❑ Are float controls operable? nn■n Are audible and visual alarms operable? n n • n # Is basin size/volume adequate? • ❑ n ❑ Comment: Secondary Clarifier - Yes No NA NE Is the clarifier free of black and odorous wastewater? ■ n n n Page # 5 Permit: NC0028916 Owner - Facility: Troy WWTP Inspection Date: 06/27/2007 Inspection Type: Compliance Evaluation Secondary Clarifier 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 1/4 of the sidewall depth) Comment: The number 1 clarifier had a sludge blanket of 2' and the number 2 clarifier had a blanket of 2.5'. Oxidation Ditches Yes No NA NE Are the aerators operational? ■ n ❑ ❑ Are the aerators free of excessive solids build up? • n n n # Is the foam the proper color for the treatment process? • ❑ ❑ El Does the foam cover less than 25% of the basin's surface? • n n n Is the DO level acceptable? ■ ❑ n El Are settleometer results acceptable (> 30 minutes)? • n ❑ n 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: Disinfection -Gas Yes No NA NE Are cylinders secured adequately? ❑ ❑ ❑ ■ Are cylinders protected from direct sunlight? n n n • Is there adequate reserve supply of disinfectant? Finn. Is the level of chlorine residual acceptable? n ❑ ❑ • Is the contact chamber free of growth, or sludge buildup? n n n • Is there chlorine residual prior to de -chlorination? ❑ ❑ ❑ • Does the Stationary Source have more than 2500 lbs of Chlorine (CAS No. 7782-50-5)? n. n n • Page # 6 Yes No NA NE ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn Permit: NC0028916 Owner - Facility: Troy WWTP Inspection Date: 06/27/2007 Inspection Type: Compliance Evaluation Disinfection -Gas If yes, then is there a Risk Management Plan on site? If yes, then what is the EPA twelve digit ID Number? (1000- If yes, then when was the RMP last updated? Comment: Facility has a back-up chlorine gas disinfection system if the UV fails. 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: 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 1.0 to 4.4 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: Meritch is the facility's contract laboratory. Influent Sampling # Is composite sampling flow proportional? Is sample collected above side streams? Is proper volume collected? Yes No NA NE n nn■ Yes No NA NE n n■n ■ nnn ■ nnn ■ nnn ■ nnn n nn■ ■ nnn Yes No NA NE ■ n-nn ■ nnn n nn■ Yes No NA NE ■ nn'n o n El ■ nnn n n■n n n■n n n■n Yes No NA NE nn■n ■ nEln ■ nnn Page # 7 Permit: NC0028916 Owner - Facility: Troy wWTP Inspection Date: 06/27/2007 Inspection Type: Compliance Evaluation Influent Sampling Is the tubing clean? Is proper temperature set for sample storage (kept at 1.0 to 4.4 degrees Celsius)? Is sampling performed according to the permit? Comment: At the time of the inspection the influent sampler was not cooling properly, however when sample were collected earlier proper temperature was recorded. Effluent Sampling Yes No NA NE Is composite sampling flow proportional? n n ■ ❑ Is sample collected below all treatment units? • n ❑ ❑ Is proper volume collected? ■ n n n Is the tubing clean? n • n n Is proper temperature set for sample storage (kept at 1.0 to 4.4 degrees Celsius)? ■ n n n Is the facility sampling performed as required by the permit (frequency, sampling type representative)? • ❑ ❑ n Comment: Please change tubing as neccessary to maintain a true representive effluent sample. The effluent temperature was at 2.5 degrees Celsius at the time of the inspection. Upstream / Downstream Sampling Yes No NA NE Is the facility sampling performed as required by the permit (frequency, sampling type, and sampling location)? ■ n n n Comment: Disinfection - UV Yes No NA NE Are extra UV bulbs available on site? • ❑ ❑ n Are UV bulbs clean? ■ n n n Is UV intensity adequate? ■ n n n Is transmittance at or above designed level? • n n Is there a backup system on site? ■ n n n Is effluent clear and free of solids? ■ n Comment: Yes No NA NE ■ nnn ■ nnn ■ nnn Page # 8 Regional Field Inspectors Check List for Field Parameters Name of site to be Inspected: Troy r,/wj y' Date: Field Certification # (if applicable): Inspector: NPDES #: NG Oo.28y/(o Region: fi l I. Circle the parameter or parameters performed at this site. Residual Chlorine, Settleable Solids, pH, DO, Conductivity, Temperature II. Instrumentation: A. Does the facility have the equipment necessary to analyze field parameters as circled above: 1. A pH meter A -cmei "See K r0 Yes 2. A Residual Chlorine meter Yes 3. DO meter �5�7` fro 4. A Cone for settleable solids 5. A theiniometer or meter that measures temperature 6. Conductivity meter III. Calibration/Analysis: 1. Is the pH meter calibrated with a 2 buffers and checked with a third buffer each day of use? 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? No '1" v op /0 No No Yes No No Yes Yes No No IN O No IV. Documentation: 1. Is the date and time that the sample was collected documented? 2. Is the sample site documented? 3. Is the sample collector documented? 4. Is the analysis date and time documented? 5. Did the analyst sign the documentation? 6. Is record of calibration documented? 7. For Settleable Solids, is sample volume and 1 hour time settling time documented? 8. For Temperature, is the annual calibration of the measuring device documented Comments: No No No No No No •Fic e..1: a/ heairs p H /Ke 1{rr' w. /`i 4 H y and / fL 7 gutter. arid ,4eeks the n.e/e- w;14 #4r ,la...e p%`7 4,,A 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. 02/14/2007