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Home My WebLink AboutNC0023906_Historical information 2012 wilson_20121231October 31, 2012 SUBJECT: Dear Mr. Pridgen: 1. The subject permit was reissued and became effective December 01, 2009 and expires May 31, 2. Beverly Eaves Perdue Governor Dee Freeman Secretary NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Charles Wakild, P.E. Director Compliance Evaluation Inspection City of Wilson Hominy Creek Water Reclamation Facility NPDES Permit NC0023906 Stormwater Permit NCG110081 Wilson County Customer Service 1-877-623-6748 North Carolina Xatnrallu Jimmy Pridgen, Water Reclamation Manager City of Wilson Hominy Creek Water Reclamation Facility P.O. Box 10 3100 Old Stantonsburg Road Wilson, NC 27894-0010 2013. Permit renewal is required 180 days prior to permit expiration date. The 14.0 MOD Wastewater Treatment Facility consists of the of the following units: influent pump station; two (2) automatic bar screens; manual bar screens; screenings compactor; automatic grit removal; influent ultrasonic flow meter; two (2) pre-aeration basins; two (2) biological phosphorus removal tank; three (3) primary clarifiers; seven (7) aeration basins with seven anoxic zones and one reareation zone; five (5) secondary clarifiers; methanol feed facilities; five (5) deep bed denitrification filters with automatic or manual backwashing; sodium hypochlorite disinfection tank; reareation basin with sodium bisulfite dechlorination; effluent ultrasonic flow meter; effluent pump station; one (1) reuse water basin; a reclaim water facility; one (1) plastic lined reclaimed water pond;'four anaerobic digesters heated by natural gas or methane generated from digesters; a sludge thickening and dewatering building with two (2) gravity belt thickeners, two (2) belt filter presses, three (3) return waste activated sludge pump stations; a ten-ton per day alkaline sludge stabilization facility capable of producing Class A dewatered sludge; three (3) liquid sludge holding tanks; and a septage receiving station. 3. At the time of inspection the following was observed: one mechanical screen, one grit collector, two grit classifiers, one primary clarifier, 7 and 2 treatment trains, two biological phosphorus tanks, five- secondary clarifiers, and five tertiary filters were in operation. The preaeration tank was not in service. The filter belt presses were not in operation however; they operate ever Tuesday morning and Friday evening. There was some Class A and Class B biosolids stored under shelter. One digester methane unit was not in service due to a broken cover. The other 3 digester methane units were operating normally. Excess methane was being ignited. The color of the influent was a medium chocolate brown with foam covering over 90% of the service, which is normal for this type of treatment process. All air diffusers in the aeration basins appeared to be operating normally. Dissolved oxygen in basin 2 was 2.32 mg/l and 3.53 mg/l in basin 3. Microseed 3000 is being added North Carolina Division of Waler Quality 1628 Mail Service Center Raleigh. NC 276«R>28 Phone (919) 791-4200 * lntemet. www.ncwaterquality.org Location: 3800 Barrett Drive Raleigh'NC 27609 Fax (919) 788-7159 An Equal Opportunity/Affirmative Action Employer- 50% Recycled/10% Post Consumer Paper On October 22, 2012, Mitch Hayes of the Raleigh Regional Office conducted the subject inspection. Debbie Collins and your assistance with the inspection were greatly appreciated. Below is a list of findings and recommendations developed from the inspection. 4. 6. 7. 8. Stormwater Permit NCG110081 Wilson Hominy Creek WRF Page 2 cc: SWP files Central files ERA Sincerely, Mitch Hayes ' Environmental Specialist I would like to thank you and Debbie Collins for yourtime and assistance with this inspection. If you have any questions about this letter or the inspection please contact me at mitch.hayes@ncdenr qov or at 919.791.4261. 5. Granville Farms operates the Land Application Program under permit WQ0001896. Class B solids are land applied on private farms or transported to Eastern Composting in Battleboro, NC. Reclaimed water is distributed under permit WQ0018709. Reclaimed water is irrigated on Wedgewood Golf Course and J. Burt Gillette Athletic complex. Reclaimed water is also used in process water at the Hackney Industrial Park, and the Wilco Industrial Park. Reclaimed, reuse water permits and other non-discharge permits are regulated by the Aquifer Protection Section (APS). All correspondence pertaining to these permits should be directed to the APS. The upgrade to the influent pump station was ongoing at the time of inspection. New influent pumps and mechanical bar screens were on site and are anticipated to be installed in December. Concrete had been poured for the new influent flow channel. at the end of the aeration basin to reduce phosphorus. Sludge judge reading in secondary clarifier #2 was 1/4 foot with a sidewall depth of 10 feet and 2 feet in secondary clarifier #3 with a sidewall depth of 10 feet. All 5 tertiary filters were in operation. The effluent appeared clear in the reareation / dechlorination tank. 9. Permit NCG110081 was reissued and became effective on June 01,2008 and expires on May 31, 2013. Permit renewal is required 180 days prior to permit expiration date. A review of the permit requirements was conducted after the CEI for NC0023906. A copy of the permit was on hand and contained all permit requirements. The employee contact list has been updated. There have been no changes to the facility within the past two years. All elements of the Stormwater Pollution Prevention Plan (SWPPP) are being maintained. Qualitative monitoring was last conducted 06.14.2012. Employee training was last conducted on 09.18.2012. The laboratory was checked in a cursory manner. All instrument calibration logs are being maintained. The BOD incubator temperature was 20.5 degrees C, the fecal bath temperature was 44.5 degrees C, sample refrigerator was 0.5 degrees C, and fridge #2 was 3 degrees C. An operator’s logbook was available and being maintained. The influent and effluent flow sampler temperature was 0.5 degrees C. The influent and effluent flow meters are calibrated every 90 days by Pearson Controls Services from Raleigh, NC.AII pH buffers were within expiration date. Discharge Monitoring Reports for the period August 2010 through August 2012 were reviewed for compliance with permit limits and monitoring requirements. There were no violations for the review period. Commercial lab results, chain of custody records, and bench sheets were compared with data submitted on the Discharge Monitoring Report (DMR) for the month of August 2012. No discrepancies were noted. EPA NPDES 3L NC0023906 Remarks Entry Time/Date Permit Effective Date 08/12/0110:15 AM 12/10/22Wilson WWTP Exit Time/Date Permit Expiration Date 13/05/3102:00 PM 12/10/22 Other Facility Data James William Pridgen//252-399-2491 / James William Pridgen/ORC/252-399-2491/ Name, Address of Responsible Official/Title/Phone and Fax Number Russell P Brice,PO Box 10 Wilson NC 278940010/Plant Manager/252-399-2491/ Storm Water (See attachment summary) Name(s) and Signature(s) of Inspector(s)Agency/Office/Phone and Fax Numbers Date RRO WQ//919-791-4200/ /\J() 2/72- Page #1 ,2, Flow Measurement Self-Monitoring Program | Sludge Handling Disposal Effluent/Receiving Waters Section D: Contacted Yes QA 72^J Records/Reports Compliance Schedules Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) /// Old Stantonsburg Rd Wilson NC 27893 United States Environmental Protection Agency Washington, D.C. 20460 yr/mo/day 12/10/22 Form Approved. OMB No. 2040-0057 Approval expires 8-31-98 'Phone and Fax Numbers Date //^X /J), Mitchell S Hayes /t'j Fac Type 20U Inspection Type 18l£|J17 Inspector 19PJ Water Compliance Inspection Report Section A: National Data System Coding (i.e., PCS) ------Reserved---------------------- 75l I I I I I I 18073l I I74 Bl 71 u J11 ■ Permit ____________________________________________Section B: Facility Data n^^,and Locat!°n; °f Facility Inspected (For Industrial Users discharging to POTW, also include POTW name and NPDES permit Number) 21| I I I I I I I I I I I I I I I I | | | | | III I I I | | | | | | | | | | | | | | | | | | |66 Inspection Work Days Facility Self-Monitoring Evaluation Rating 67L J69 70ix Transaction Code 1 IX 2 x Laboratory Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Signa^re of Managep^nt Q A Reviewer MW EPA Form 3s/o-3 (Rev 9-94) Previous editions are obsolete. Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Operations & Maintenance Facility Site Review (cont.)1 11 Inspection Type 183I NPDES yr/mo/day i11 12i I 17 lol^lNC0023906 I I 12/10/22 |!_£]_________________________________________ Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) The 14.0 MGD Wastewater Treatment Facility consists of the of the following units: influent pump station; two (2) automatic bar screens; manual bar screens; screenings compactor; automatic grit removal; influent ultrasonic flow meter; two (2) pre-aeration basins; two (2) biological phosphorus removal tank; three (3) primary clarifiers; seven (7) aeration basins with seven anoxic zones and one reareation zone; five (5) secondary clarifiers; methanol feed facilities; five (5) deep bed denitrification filters with automatic or manual backwashing; sodium hypochlorite disinfection tank; reareation basin with sodium bisulfite dechlorination; effluent ultrasonic flow meter; effluent pump station; one (1) reuse water basin; a reclaim water facility; one (1) plastic lined reclaimed water pond; four anaerobic digesters heated by natural gas or methane generated from digesters; a sludge thickening and dewatering building with two (2) gravity belt thickeners, two (2) belt filter presses, three (3) return waste activated sludge pump stations; a ten-ton per day alkaline sludge stabilization facility capable of producing Class A dewatered sludge; three (3) liquid sludge holding tanks; and a septage receiving station. At the time of inspection the following was observed: one mechanical screen, one grit collector, two grit classifiers, one primary clarifier, 7 and 2 treatment trains, two biological phosphorus tanks, five secondary clarifiers, and five tertiary filters were in operation. The preaeration tank was not in service. The filter belt presses were not in operation however; they operate ever Tuesday morning and Friday evening. There was some Class A and Class B biosolids stored under shelter. One digester methane unit was not in service due to a broken cover. The other 3 digester methane units were operating normally. Excess methane was being ignited. The color of the influent was a medium chocolate brown with foam covering over 90% of the service, which is normal for this type of treatment process. All air diffusers in the aeration basins appeared to be operating normally. Dissolved oxygen in basin 2 was 2.32 mg/l and 3.53 mg/l in basin 3. Microseed 3000 is being added at the end of the aeration basin to reduce phosphorus. Sludge judge reading in secondary clarifier #2 was 1/2 foot with a sidewall depth of 10 feet and 2 feet in secondary clarifier #3 with a sidewall depth of 10 feet. All 5 tertiary filters were in operation. The effluent appeared clear in the reareation / dechlorination tank. The upgrade to the influent pump station was ongoing at the time of inspection. New influent pumps and mechanical bar screens were on site and are anticipated to be installed in December. Concrete had been poured for the new influent flow channel. Granville Farms operates the Land Application Program under permit WQ0001896. Class B solids are land applied on private farms or transported to Eastern Composting in Battleboro, NC. Reclaimed water is distributed under permit WQ0018709. Reclaimed water is irrigated on Wedgewood Golf Course and at the J. Burt Gillette Athletic complex and used in process water at the Hackney Industrial Park, and the Wilco Industrial Park. Reclaimed, reuse water permits and other non-discharge permits are regulated by the Aquifer Protection Section (APS). All correspondence pertaining to these permits should be directed to the APS. The laboratory was checked in a cursory manner. All instrument calibration logs are being maintained. The BOD incubator temperature was 20.5 degrees C, the fecal bath temperature was 44.5 degrees C, sample refrigerator was 0.5 degrees C, and fridge #2 was 3 degrees C. An operator’s logbook was available and Page # 2 Permit: NC0023906 Owner - Facility: Wilson WWTP Inspection Date: 10/22/2012 Inspection Type: Compliance Evaluation being maintained. The influent and effluent flow sampler temperature was 0.5 degrees C. The influent and effluent flow meters are calibrated every 90 days by Pearson Controls Services from Raleigh NC All pH buffers were within expiration date. Discharge Monitoring Reports for the period July 2009 to July 2010 were reviewed for compliance with permit limits and monitoring requirements. There were no violations for the review period. Commercial lab results, chain of custody records, and bench sheets were compared with data submitted on the Discharge Monitoring Report (DMR) for the month of August 2012. No discrepancies were noted. Page # 3 Yes No NA NECompliance Schedules ■ Is there a compliance schedule for this facility? ■ o Is the facility compliant with the permit and conditions for the review period? Comment: Yes No NA NEOperations & Maintenance ■ Settleable on day of inspection was 59 ml after 30 minutes and 44 after 60 Yes No NA NEPermit ■ (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? ■ oIs access to the plant site restricted to the general public? ■ Is the inspector granted access to all areas for inspection? Comment: A permit renewal is being prepared. Yes No NA NERecord Keeping ■ Are records kept and maintained as required by the permit? ■ Is all required information readily available, complete and current? ■ o 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? Page #4 Comment: minutes. Owner - Facility: Wilson WWTP Inspection Type: Compliance Evaluation Is the plant generally clean with acceptable housekeeping? Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge 10 00 Judge, and other that are applicable? Permit: NC0023906 Inspection Date: 10/22/2012 RecordJCeeping Yes No NA NE (If the facility is - or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator on each shift?■ o 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? ■ o Is a copy of the current NPDES permit available on site? Facility has copy of previous year's Annual Report on file for review?■ EffluentPipe Yes No NA NE Is right of way to the outfall properly maintained?■ o ■ o Are the receiving water free of foam other than trace amounts and other debris? ■ oIf effluent (diffuser pipes are required) are they operating properly? Flow Measurement - Influent Yes No NA NE # Is flow meter used for reporting? ■ Is flow meter calibrated annually?■ ■ Is the flow meter operational? ■ o (If units are separated) Does the chart recorder match the flow meter? Comment: Yes No NA NE ■ # 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 Type of operation:Floating cover ■ Is the capacity adequate? ■00# Is gas stored on site? Page #5 Flow meter is calibrated every 90 days. Anaerobic Digester Meter is calibrated every 90 days. Flow Measurement - Effluent Permit: NC0023906 Inspection Date: 10/22/2012 Owner - Facility: Wilson WWTP Inspection Type: Compliance Evaluation Comment: August 2012 DMR was compared to data submitted by laboratory. There was consisted data reporting. Comment: Effluent was observed at the end of the reaeration basin. Effluent appeared clear with no solids or foam. Permit: NC0023906 Yes No NA NEAnaerobic Digester ■ Is the digester(s) free of tilting covers? ■ Is the gas burner operational? ■ ODDIs the digester heated? ■ o Is the temperature maintained constantly? ■ Is tankage available for properly waste sludge? One of the digesters was off line due to a faulty cover.Comment: Yes No NA NESolids Handling Equipment o ■ Is the equipment operational? ■ Is the chemical feed equipment operational? ■ o o 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? ■ o oIs the site free of excessive moisture in belt filter press sludge cake? ■ o o The facility has an approved sludge management plan? Yes No NA NEPump Station - Influent ■ o Is the pump wet well free of bypass lines or structures? ■ o Is the wet well free of excessive grease? ■ Are all pumps present? ■ Are all pumps operable? o ■Are float controls operable? ■ oIs SCADA telemetry available and operational? ■ o Is audible and visual alarm available and operational? Yes No NA NEBar Screens Type of bar screen Page #6 Owner - Facility: Wilson WWTP Inspection Type: Compliance Evaluation Comment: Influent pump station is currently being upgraded. New pumps and mechanical bar screens, redundent electrical service will be installed during the next 4 months. Comment: Solids handling equipement was not being operated at the time of inspection. Granville Farms operates the Land Application Program under permit WQ0001896. Class B solids are land applied on private farms or transported to Eastern Composting in Battleboro, NC. Inspection Date: 10/22/2012 Permit: NC0023906 Inspection Date: 10/22/2012 Bar Screens Yes No NA NE a.Manual b.Mechanical ■ Are the bars adequately screening debris? ■ Is the screen free of excessive debris? ■ o o Is disposal of screening in compliance? ■ Is the unit in good condition? Comment: One mechanical bar operates during low inflow. Grit Removal Yes No NA NE Type of grit removal a.Manual b.Mechanical ■ Is the grit free of excessive organic matter? ■ o Is the grit free of excessive odor? ■ # Is disposal of grit in compliance? Comment:One grit collector is being operated during low inflow. Primary Clarifier Yes No NA NE ■ 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? ■ o Is the site free of weir blockage? ■ o o Is the site free of evidence of short-circuiting? ■ Is scum removal adequate? ■ Is the site free of excessive floating sludge? ■ ODOIs the drive unit operational? ■ oIs the sludge blanket level acceptable? ■Is the sludge blanket level acceptable? (Approximately % of the sidewall depth) Comment: Secondary Clarifier Yes No NA NE ■ Is the clarifier free of black and odorous wastewater? ■ Is the site free of excessive buildup of solids in center well of circular clarifier? Page #7 Owner - Facility: Wilson WWTP Inspection Type: Compliance Evaluation Permit: NC0023906 Inspection Date: 10/22/2012 Yes No NA NESecondary 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? ■ oIs the return rate acceptable (low turbulence)? ■ Is the overflow clear of excessive solids/pin floc? ■ Is the sludge blanket level acceptable? (Approximately % of the sidewall depth) Yes No NA NEAeration Basins Ext. AirMode of operation DiffusedType of aeration system ■ Is the basin free of dead spots? ■ o Are surface aerators and mixers operational? ■ Are the diffusers operational? ■ Is the foam the proper color for the treatment process? ■ Does the foam cover less than 25% of the basin’s surface? ■ o Is the DO level acceptable? ■ Is the DO level acceptable?(1.0 to 3.0 mg/l) Foam covered over 90% of the surface area which is normal for this type of Yes No NA NENutrient Removal ■ # Is total nitrogen removal required? ■ # Is total phosphorous removal required? BiologicalType ■ # Is chemical feed required to sustain process? ■ Is nutrient removal process operating properly? Page #8 Comment: operation. Comment: There was an excessive build up of scum and solids in the center well. Staff were cleaning the center wells. The condition of the weirs could not be determined becaused they are covered. Owner - Facility: Wilson WWTP Inspection Type: Compliance Evaluation Nutrient Removal Yes No NA NE Microseed 3000 is added to the end of the aeration basin to reduce Filtration (High Rate Tertiary)Yes No NA NE Type of operation:Down flow Is the filter media present?■ Is the filter surface free of clogging?■ Is the filter free of growth?■ o Is the air scour operational?■ ODO Is the scouring acceptable?■ Is the clear well free of excessive solids and filter media?■ o Comment: Disinfection-Liquid Yes No NA NE Is there adequate reserve supply of disinfectant?■ (Sodium Hypochlorite) Is pump feed system operational?■ o Is bulk storage tank containment area adequate? (free of leaks/open drains)■ o o Is the level of chlorine residual acceptable?■ Is the contact chamber free of growth, or sludge buildup?■ o Is there chlorine residual prior to de-chlorination?■ o Comment: De-chlorination Yes No NA NE Type of system ?Liquid Is the feed ratio proportional to chlorine amount (1 to 1)?■ Is storage appropriate for cylinders?■ # Is de-chlorination substance stored away from chlorine containers?■ o Comment: Are the tablets the proper size and type?o ■ o Are tablet de-chlorinators operational?o ■ Number of tubes in use? Comment: Standby Power Yes No NA NE Page #9 Comment: Phosphorus. Permit: NC0023906 Inspection Date: 10/22/2012 Owner - Facility: Wilson WWTP Inspection Type: Compliance Evaluation Yes No NA NEStandby Power ■ Is automatically activated standby power available? ■ Is the generator tested by interrupting primary power source? ■ 0 Is the generator tested under load? ■ oWas generator tested & operational during the inspection? ■ ■ ODO ■ Is the generator fuel level monitored? Generator operated during inspection.Comment: Yes No NA NELaboratory ■ Are field parameters performed by certified personnel or laboratory? ■ o Are all other parameters(excluding field parameters) performed by a certified lab? ■ o # 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)? ■ 0 Incubator (Fecal Coliform) set to 44.5 degrees Celsius*/- 0.2 degrees? ■ Incubator (BOD) set to 20.0 degrees Celsius +/-1.0 degrees? Yes No NA NEEffluent Sampling ■ Is composite sampling flow proportional? ■ Is sample collected below all treatment units? ■ O 0 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)? ■ Yes No NA NEInfluent Sampling ■ # Is composite sampling flow proportional? ■ Is sample collected above side streams? ■ Is proper volume collected? 10Page # 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 facility sampling performed as required by the permit (frequency, sampling type representative)? Comment: The effluent flow sampler temperature was 0.5 degrees C. Owner - Facility: Wilson WWTP Inspection Type: Compliance Evaluation Permit: NC0023906 Inspection Date: 10/22/2012 Comment: The BOD incubator temperature was 20.5 degrees C, the fecal bath temperature was 44.5 degrees C, sample refrigerator was 0.5 degrees C, and fridge #2 was 3 degrees C. Influent Sampling Yes No NA NE Is the tubing clean?■ DOO # 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?■ o Comment:The influent and flow sampler temperature was 0.5 degrees C. Page # 11 Permit: NC0023906 Inspection Date: 10/22/2012 Owner - Facility: Wilson WWTP Inspection Type: Compliance Evaluation Hayes, Mitch E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties. Mitch, \oval efficiency. c 1 Thanks, Jimmy Thanks for the notice Jimmy. I'll print this email and file it in the file. Mitch From: Jimmy Pridgen [mailto:jpridgen@WILSONNC.ORG] Sent: Monday, November 19, 2012 4:34 PM To: Hayes, Mitch Cc: Haywood Phthisic (LNBA) Subject: City of Wilson WWTP - FW: MeOH tank line repair Importance: High From: Sent: To: Subject: Hayes, Mitch Monday, November 19, 2012 4:37 PM 'Jimmy Pridgen1 RE: City of Wilson WWTP - FW: MeOH tank line repair Mitch Hayes, Environmental Specialist NCDENR, Division of Water Quality, Raleigh Regional Office 1628 MSC, Raleigh, NC 27699-1699 Voice: 919.791.4261 - Fax: 919.788.7159 mitch.hayes@ncdenr.gov City of Wilson Water Reclamation Facility P.O. Box 10 3100 Old Stantonsburg Road Wilson, NC 27894-0010 Fv-.1 Water Reclamation Manager /Ul^ Office: 252-399-2491 Mobile: 252-205-2519 Fax: 252-399-2209 Email: ipridqen@wilsonnc.org Website: www. wilsonnc. orq Just wanted to make you aware of this issue that popped up earlier this morning (see email to Barry Parks below). We do not expect any significant impact. While we may see some Nitrate and TN increase, we are well within our permit limits, actually at about 1/3 of our annual limit (and of course we are in LNBA). Just wanted you (NCDENR) to be aware since it does have potential to impact our awesome Nitrogen re. Please contact me if any questions or concerns. - 77° Barry, Jimmy 2 i k From: Jimmy Pridgen Sent: Monday, November 19, 2012 4:27 PM To: Barry Parks Subject: MeOH tank line repair Importance: High Just wanted to let you know a leak in the primary methanol feed line from the bulk storage tank (located in the containment area) was discovered early this morning. We have flushed all the impacted piping, removed the leaking pipe, and it is at Wilson Iron Works being repaired/replaced as necessary. MeOH feed (currently using MicroC 3000) is off until we resolve. If all goes well, we hope to have this taken care of by end of day Wednesday and be back online. Just wanted you to be aware. May see Nitrate values increase next day or so and also the TN values. Hopefully we won't lose denitrifying organisms while we are down, but if we do, it may take a little while to fully recover. Pursuant to North Carolina General Statutes, Chapter 132,et.seq., this electronic mail message and any attachment hereto, as well as any electronic mail message(s) that may be sent in response to it may be considered public record and as such are subject to requests for review. City of Wilson Water Reclamation Facility P.O. Box 10 3100 Old Stantonsburg Road Wilson, NC 27894-0010 Water Reclamation Manager Office: 252-399-2491 Mobile: 252-205-2519 Fax: 252-399-2209 Email: ipridqen@wilsonnc.org Website: www. wilsonnc. orq