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Home My WebLink AboutNC0020656_Inspection_20061207-William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Alan W. Klimek, P.E. Director Division of Water Quality December 7, 2006 Robert A. Ellis City of Laurinburg PO Box 249 Laurinburg NC 28353 SUBJECT: November 14, 2006 Compliance EvaluationInspection City 'of Laurinburg Leith Creek WWTP Permit No: NC0020656 Scotland County Dear Mr Ellis: Enclosed please find a copy of the Compliance Evaluation Inspection form from the inspection conducted on November 14, 2006. The Compliance Evaluation Inspection was conducted by Mark Brantley, Environmental Chemist, of the Fayetteville Regional Office. The cooperation of Mr. Ricky Odum, Grade IV Back Up ORC, was greatly appreciated. The facility was found to be in Compliance with permit NC0020656. As a reminder, preservation of the Waters of the State can only be achieved through consistent NPDES Permit compliance. 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 cc: Robert A. Ellis, ORC Central Files Fayette i1Je Hales One NorthCarolina • Naturally North Carolina Division of Water Quality/Aquifer Protection Section 225 Green St./ Suite 714 Fayetteville, NC 28301 Phone (910) 433-3300 FAX (910) 486-0707 Internet: h2o.enr.state.nc.us Customer Service 1-877-623-6748 . An Equal Opportunity/Affirmative Action Employer— 50% Recycled/10% Post Consumer Paper United States Environmental Protection Agency EPA ^rH 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 NC0020656 111 121 06/11/14 1 17 Type Inspector Fac Type 181 cl 191 sl 20I lI Remarks 291I1IIIIII1I1IIIIIIIII1IIIIIII11111III1111IIIII166 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA------------------------Reserved 671 169 701 31 71 I *t 1 721 N 1 731 11 74 751 1 1 1. 1 1 1 1 80 Section B: Facility Data Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include POTW name and NPDES permit Number) Leith Creek WWTP Hall St Extension Laurinburg NC 28352 Entry Time/Date 08:30 AM' 06/11/14 Permit Effective Date 04/11/01 Exit Time/Date 12:00 PM 06/11/14 Permit Expiration Date 09/08/31 Name(s) of Onsite Representative(s)/Ttles(s)/Phone and Fax Number(s) /// Ricky Todd Odom/ORC/910-291-1718/. Robert A. Ellis/ORC/910-277-0214/ Other Facility Data Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Robert A. Ellis,P0 Box 249 Laurinburg NC 28353//910-277-0214/ No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit Flow Measurement • Operations & Maintenance Self -Monitoring Program • Sludge Handling Disposal • Facility Site Review • Records/Reports • Compliance Schedules and checklists as necessary) Effluent/Receiving Waters Laboratory Section D: Summary of Findinq/Comments (Attach additional sheets of narrative (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/ .I �/ 7/0 ./ MrAti BA(4,01c- Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date Belinda S Henson q; &at°.j W' W/uO FRO WQ//910=433-3300 Ext.726/ I 2/0/0 ti EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page # 1 NPDES NC0020656 I11 121 yr/mo/day 06/11/14 117 Inspection Type 18ICI (cont.) Section D: Summary. of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) The facility was clean and neat at the time of the inspection. COMMENTS • The garbage dumpster at the grit chamber was leaking a very small amount of wastewater onto the ground. Pleaseput the drain plug in the dumpster or install a berm like structure to ensure wastewater flows back into the grit chamber instead of on the ground. Alarms at the influent pump station were not tested during the inspection. A log of test dates and times of testing the alarms are kept by plant staff. As a safety note, please secure sulfur dioxide cylinders to prevent them from falling. Mr. Odum, back up ORC, indicated that plans have been made to install safety chains. DMR's for the months of February 2006,"April 2006, and July 2006 were reviewed and appeared to be correct. A violation report for the time period between October 2005 through August 2006 revealed a total suspended solids violation (monthly average exceeded) and two pH violations (daily minimum not reached). A notice of violation was issued for the three violations. The Leith Creek WWTP analyzes a large number of the requi red NPDES parameters. Due to the large amount of laboratory work that is done by Mr. Ricky Odum, Chief. Operator, the city may find it beneficial to hire someone to run the required laboratory tests. This staff member would also be available to r un a variety of process control tests that would generate data in a timely manner that would assist the plant operators in running the plant. This would allow Mr. Ricky Odum to spend more time doing his operational duties. Page # 2 Permit: NC0020656 Owner - Facility: Leith Creek WWTP Inspection Date: 11/14/2006 Inspection Type: Compliance Evaluation Compliance Schedules Is there a compliance schedule for this facility? Is the facility compliant with the permit and conditions for the review period? Comment: A compliance report from 10-2005 thru 8-2006 showed 1 monthly TSS, and 2 pH violations. A notice of viol ation was issued for each of these violations. Operations & Maintenance 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: Fadility analyzes MLSS, pH, dissolved oxygen, and sludge blankets for process controls. Yes No NA NE Permit (If the present permit expires in 6 months or less). Has the permittee submitted a new application? n n i n Is the facility as described in the permit? ■. ❑ n ❑ # Are there any special conditions for the permit? ❑ n • n Is access to the plant site restricted to the general public? ■ n n Is the inspector 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? - ■ n n n Is all required information readily available, complete and current? • n n n Are all records maintained for 3 years (lab. reg. required 5 years)? ■ n n n Are analytical results consistent with data reported on DMRs? • • n n n Is the chain -of -custody. complete? ❑ n n ■ Dates, times and location of sampling n Name of individual performing the sampling n Results of analysis and calibration n Dates of analysis n Name of person performing analyses n Transported COCs n 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 Yes No NA NE ■ nnn ■ ❑ n n Yes No NA NE Page # 3 Permit: NC0020656 Owner - Facility: Leith Creek WWTP Inspection Date: 11/14/2006 Inspection Type: Compliance Evaluation Record Keeping • (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? Facility has copy of previous year's Annual Report on file for review? Comment:. Contract laboratory information is kept in Robert Ellis's office at the water treatment plant. 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: Flow measurement is recorded from effluent meter. JD Dismuke company last,calibrated meter in March 2006. 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: JD Dismuke company last calibrated meter in March 2006. Aerobic Dig_ester Is the capacity adequate? Is the mixing adequate? Is the site free of excessive foaming in the tank? # Is the odor acceptable? Yes No NA NE n n■n • nnn ■nnn ■ nnn ■ nnn ■ nnn Yes No NA NE n nn■ n nn■ nnn■ Yes No NA NE 0I■nn ■ nnn ■ n❑n nnn■ Yes No NA NE ■ nnn ■ nnn ■ nnn nnn■ Yes No NA NE ■ nnn ■ nnn ■ nnn ■ nnn Page # 4 Permit: NC0020656 Owner - Facility: Leith Creek WWTP Inspection Date: 11/14/2006 Inspection Type: Compliance Evaluation Aerobic Digester Yes No NA NE # Is tankage available for properly waste sludge? min n Comment: Dr in 9 Beds Yes No NA NE _Y Is there adequate drying bed space? ■ n n n Is the sludge distribution on drying beds appropriate? sin n n Are the drying beds free of vegetation? ■ n n n # Is the site free of dry sludge remaining in beds? ❑ ■ ❑ n Is the site free of stockpiled sludge? • n n n Is the filtrate from sludge drying beds returned to the front of the plant? ■ n n n • # Is the sludge disposed of through county landfill? n ■ n ❑ # Is the sludge land applied? ■ n n ❑ (Vacuum filters) Is polymer mixing adequate? ❑ ❑ • n Comment: Sludge is land applied. About half of t he drying beds are ready to be removed and the other half will be ready in about 4-6 weeks depending on the weather. Pump Station - Effluent Yes No NA NE Is the pump wet well free of bypass lines or structures? ■ n ❑ ❑ Are all pumps present? • Finn Are all pumps operable? ■ ❑ ❑ n Are float controls operable? • n n n Is SCADA telemetry available and operational? • ❑ ❑ ❑ Is audible and visual alarm available and operational? n n n ■ Comment: Pump Station - Influent Yes No NA NE Is the pump wet well free of bypass lines or structures? ■ n n n Is the wet well free of excessive grease? ■ ❑ ❑ ❑ Are all pumps present? • ❑ ❑ ❑ Are all pumps operable? • n n n Are float controls operable? ■ n n ❑ Is SCADA telemetry available and operational? ❑ ❑ n Is audible and visual alarm available and operational? • n n n Page # 5 Permit: NC0020656 Owner - Facility: Leith Creek WWTP Inspection Date: 11/14/2006 Inspection Type: Compliance Evaluation Pump Station - Influent Yes No NA NE Comment: A log is kept of when alarms were tested. Bar Screens Yes No NA NE Type of bar screen a.Manual n b.Mechanical Are the bars adequately screening debris? ■ n 1-1 ❑ 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 ❑ ❑ Comment: Grit Removal Yes No NA NE Type of grit removal a.Manual ❑ b.Mechanical • Is the grit free of excessive organic matter? • Finn Is the grit free of excessive odor? • ❑ # Is disposal of grit in compliance? • n n n Comment: Equalization Basins Yes No NA 'NE Is the basin aerated? • n n n Is the basin free of bypass lines or structures to the natural environment? • Finn Is the basin free of excessive grease? 1 n n n Are all pumps present? • n n n Are all pumps operable? ■ n n n Are float controls operable? • ❑ n 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 clarifierfree of black and odorous wastewater? • n ❑ Page # 6 Permit: NC0020656 Owner - Facility: Leith Creek WWTP Inspection Date: 11/14/2006 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'/a of the sidewall depth) Comment: The sludge blankets were: clarifier #1-10 feet, #2-10 feet, and #3-1.5 feet. Both digesters were full and all drying beds were in use at the time of the inspection. The sludge hauler was due to start work at the WWTP on 11-15-06. Aeration Basins Mode of operation Type of aeration system Is the basin free of dead spots? 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 thebasin's surface? Is the DO level acceptable? Is the DO level acceptable?(1.0 to 3.0 mg/I) Comment: The dissolved oxygen level ranges between 0.5 and 1.5 mg/I. One aeration basin is off-line because the surface aerators are being repaired. Some concrete work is scheduled tote done while the basin down. 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? Yes No NA NE ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn En El ■ nnn ■ E T-1 ■ nnn ■ nnn Yes No NA NE Ext. Air Surface ■ nnn n■nn Eln■n ■ nnn ■ nnn ■nnn ■ nnn Yes No NA NE. ■ nnn ■ nnn ■ nnn ■ nnn Page # 7 Permit: NC0020656 Owner -Facility: Leith. Creek WWTP Inspection Date: 11/14/2006 Inspection Type: Compliance Evaluation Oxidation Ditches 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: Disinfection -Liquid Is there adequate reserve supply of disinfectant? (Sodium Hypochlorite) Is pump feed system operational? Is bulk storage tank containment area adequate? (free of leaks/open drains) Is the level of chlorine residual acceptable? Is the contact chamber free of growth, or sludge buildup? Is there chlorine residual prior to de -chlorination? Comment: De -chlorination Type of system ? 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? Comment: Are the tablets the proper size and type? Are tablet de -chlorinators operational? Number of tubes in use? Comment: At the time of the inspection some of the sulfur dioxide cylinders were not secured to the wall but Mr. Odum stated plans had been made to secure them. 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? Yes No NA NE ■ nnn ■ El ECM ■nnn n nn■ Yes No NA NE ■ nnn . nnn ■ nnn ■ nnn ■ nnn ■ nnn Yes No NA NE Gas ■ nnn n ■nn ■ nnn n n■n nn■n Yes No NA NE ■ n.nn ■ nnn ■ n❑n nnn■ • nnn Page # 8 Permit: NC0020656 Owner - Facility: Leith Creek WWTP Inspection Date: 11/14/2006 Inspection Type: Compliance Evaluation Standby Power Is there an emergency agreement with a fuel vendor for extended run on back-up power? Is the generator fuel level monitored? Comment: Generator is used on average about 13hrs per month, mostly during load management. Pumps-RAS-WAS Yes No NA NE Are pumps in place? • .❑ n n Are pumps operational? • n n n Are there adequate spare parts and supplies on site? ■ n n n Comment: Laboratoly 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: Oxford laboratories performs Total Nitrogen, Total Phosphours, Mercury, and Toxcity tests. The BOD thermomter was reading 22 degrees celsius. Please check the thermomoter and the incubator to make sure everything is working properly and possibly prevent a future problem. Influent_Samplin_g Yes No NA NE # Is composite sampling flow proportional? ❑ ❑ ■ ❑ Is sample collected above side streams? ■ n n 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 sampling performed according to the permit? ■ ❑ ❑ ❑ Comment: Effluent Sampling Yes No NA NE Is composite sampling flow proportional? ■ n n n Is sample collected below all treatment units? ■ ❑ n n Yes No NA NE ■ nnn ■ nnn Yes No NA NE ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn n■nn Page # 9 Permit: NC0020656 Owner - Facility: Leith Creek WWTP Inspection Date: 11/14/2006 Inspection Type:.Compfiance Evaluation Effluent Sampling Is proper volume collected? Is the tubing clean? Is proper temperature set for sample storage (kept at 1.0 to 4.4 degrees Celsius)? Is the facility sampling performed as 'required by the permit (frequency, sampling type representative)? Comment: . Upstream /Downstream Sampling Yes No NA -NE ■ nnn ■ n n n • .nnn ■ nnn Yes No NA NE Is the facility sampling performed as required by the permit (frequency, sampling type, and sampling location)? • ❑ n ❑ Comment: Page # 10