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Home My WebLink AboutNC0043176_Inspection_20091214Beverly Eaves Perdue Governor A.TA NCDENR North Carolina Department of -Environment and Natural Resources Division of Water Quality Coleen H. Sullins Dee Freeman Director Secretary December 14, 2009 Ronald D Autry, City Manager City of Dunn _ P.O. Box 1065 - . Dunn, NC 28335 SUBJECT: November 20, 2009 Compliance Evaluation Inspection City of Dunn Dunn WWTP Permit No: NC0043176 Harnett County Dear Mr. Autry: Enclosed please find a copy of the Compliance Evaluation Inspection form from the inspection conducted on November 20, 2009. The Compliance Evaluation. Inspection was conducted by Mark Brantley, Environmental Chemist, of the Fayetteville Regional Office. The cooperation of Donrie Dukes, Grade IV ORC, Dishon -Allen, Grade IV Back-up ORC, and Gary Barefoot, Grade II Operator/Maintenance Staff, was greatly appreciated. The facility was found to be in Compliance with permit NC0043176.. 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. • Facility has successfully switched from a gas chlorination/de-chlorination to a liquid chlorination/de- chlorination. 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,:Biantley ;; i . Environmental Chemist Surface Water Protection Section Fayetteville Regional Office cc: Donrie Eldridge Dukes, ORC Central Files Fayetteville. Filesr.1 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 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 INI 2 151 31 NC0043176 111 121 09/11/20 117 Type Inspector Fac Type 181 CI 191 SI 201 Remarks 211111111111111111111111111111111111111111111111166 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA Reserved 671 169 - 70 13 I 71 I N I 721 NI 731 I 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) Dunn WWTP Susan Tart Rd Dunn NC 28335 Entry Time/Date 10:00 AM 09/11/20 Permit Effective Date 07/02/01 Exit Time/Date 12:30 PM 09/11/20 Permit Expiration Date 11/09/30 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) /// Donrie Eldridge Dukes/ORC/910-892-8162/ Other Facility Data Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Ronald D Autry,PO Box 1065 Dunn NC 28335//910-892-2633/ 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 Inspector(s) Agency/Office/Phone and Fax Numbers Date Maqr/kk Brantleyf,i FRO WQ//910-433-3300 Ext.727/ Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date Belinda S HensonC ^4 FRO WQ//910-433-3300 Ext.726/ I a JL4_ 69 EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page # 1 NPDES NC0043176 I11 121 yr/mo/day 09/11/20 17 Inspection Type 18101 1 Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) COMMENTS Facility was clean and neat in appearance at the time of the inspection. Facility has successfully switched from a gas chlorination/de-chlorination to a liquid chlorination/de-chlorination. Page # 2 Permit: NC0043176 Owner - Facility: Dunn WWTP Inspection Date: 11/20/2009 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: 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 ❑ ❑ 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 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? ❑ ❑ ❑ ■ Is the chain -of -custody complete? n n n ■ Dates, times and location of sampling - n Name of individual performing the sampling n Results of analysis and calibration ❑ Dates of analysis n Name of person performing analyses n 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 ■ 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 Is a copy of the current NPDES permit available on site? ■ n n n Page # 3 Permit: NC0043176 Inspection Date: 11/20/2009 Owner - Facility: Dunn wMTP Inspection Type: Compliance Evaluation Record Keeping. Facility has copy of previous year's Annual Report on file for review?` 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:' Flow meter was last calibrated in April 2009. 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 forproperly waste sludge? Comment: Solids Handling -Equipment Is the equipment operational? - Is the chemical feed equipment operational? • 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? _ Is the site free of excessive moisture in belt filter press sludge cake? The facility has an approved sludge management plan? Comment: Unit was not in operation at the time of the inspection. Pump Station - Effluent Is the pump wet well free of bypass lines or structures? Are all pumps present? Are all pumps operable? Are float controls operable? Is SCADA telemetry available and operational? - Yes No NA 'NE , ■ nnn Yes No NA NE ■ nnn nnn■ Yes No -NA NE ■ nn.n ■ nnn ■ nnn :nn.n ■nnn,=. Yes No NA NE ■ nnn ■ n n- n ■ nnn p n ■-n... nn■n n•n■n ■ nnn Yes No NA NE ■ n-nn. ■ nnn ■ nnn ■ nnn. nn.n Page # 4 Permit: NC0043176 Owner - Facility: Dunn'WWTP Inspection Date: 11/20/2009 Inspection Type: Compliance Evaluation Pump Station - Effluent Is audible and visual alarm available and operational? 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? 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: Grit Removal Type of 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: Secondary Clarifier Is the clarifier free of black and odorous wastewater? Yes No NA NE ■ nnn Yes No NA NE ■ nnn ■nnn ■ nnn ■nnn ■ nnn, n n■n n nn■ Yes No NA NE n ■ ■ nnn ■ nnn ■ nnn ■ nnn Yes No NA NE n ■ ■ nnn ■ nnn ■ nnn Yes No NA NE ■ nnn Page # 5 Permit: NC0043176 Owner - Facility: Dunn WWTP Inspection Date: 11/20/2009 / 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 blanket in all three clarifiers was 6'. 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 the basin's surface? Is the DO level acceptable? Is the DO level acceptable?(1.0 to 3.0 mg/I) 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? Are the tablets the proper size and type? Comment: Facility recently converted their gas de -chlorination equipment to a liquid bisulfite de -chlorination system. Yes No NA NE ■ nn.n ■nnn ■ nnn ■ nnn ■ nnn ■ [Inn ■ nnn ■ El n ■ nnn ■ nnn Yes No NA NE Ext. Air Diffused '■nnn, nn■n ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn Yes No NA NE • Liquid ■ nnn ■ nnn ■ nnn n n ■ n Page # 6 Permit: NC0043176 • Owner - Facility: Dunn WWTP Inspection Date: 11/20/2009 Inspection Type: Compliance Evaluation De -chlorination Are tablet de -chlorinators operational? Number of tubes in use? 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: Pumps-RAS-WAS Are pumps in place? Are pumps operational? Are there adequate spare parts and supplies on site? 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: Facility has recentley converted their gas chlorination equipment to a liquid sodium hypochlorite system. Influent Sampling # Is composite sampling flow proportional? Is sample collected above side streams? Is proper volume collected? Yes No NA NE n n■n Yes No NA NE ■ nnn ■ nnn ■ nnn n nn■ ■ nnn n nn■ ■ nn•n Yes No NA NE ■ nnn ■ nnn • nnn Yes No NA NE ■ nnn ■ nnn ■ nnn ■nnn ■ n n ■ nnn Yes No NA NE n il ■n ■ nn•n ■ nnn Page # 7 Permit: NC0043176 Inspection Date:11/20/2009 Owner - Facility: Dunn wMTP Inspection Type: Compliance Evaluation Influent Sampling Yes No NA NE Is the tubing clean? ■ n n n # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)? • n n n Is sampling performed according to the permit? mi n n ❑ Comment:. Influent sampler temperature was at 4 degrees Celsius. Effluent Sampling Yes No. NA NE Is composite sampling flow proportional? ■ ❑ n n is sample collected below all treatment units? ■ 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 less than or equal to 6.0 degrees Celsius)? ■ n n n Is the facility sampling performed as required by the permit (frequency, sampling type representative)? ■ 0 n n Comment: Effluent sampler temperatue was at 3 degrees Celsius. 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 • ❑ Comment: Facility is a member of the Middle Cape Fear River Basin Assembly which has a MOA with the Division of Water Quality to conduct upstream and downstream sampling for various faicilities. J Page # 8