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Home My WebLink AboutNC0043176_Inspection_20050208Michael F. Easley, Governor William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Alan W. Klimek, P.E. Director Division of Water Quality February 8, 2005 Mr. Ronald Autry City of Dunn PO Box 1065. Dunn NC 28335 SUBJECT: January 27, 2005 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 January 27, 2005. The Compliance Evaluation Inspection was conducted by Belinda S. Henson of the Fayetteville Regional Office. The facility was found to be in Compliance with permit NC0043176. The cooperation by Mr. Bobby Burnett, ORC and staff was greatly appreciated. Please refer to the enclosed inspection report for additional observations and comments. If you or your staff have any questions, please call me at 910-486-1541 Ext.727. Sincerely, Belinda S. Henson Acting Regional Supervisor Surface Water Protection Section cc: Bobby Eldridge Burnette, ORC Central Files Fayetteville Files *x.�Y ih• Nv_l.)Ei` K NCDENR Division of Water Quality 225 Green Street -Suite 714 Fayetteville, NC 28301-50431 (910)486-1541 Telephone (910)486-0707 Fax Customer Service 1 877 623-7748 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 1 J 2 I I 3 I NC0043176 111 121 05/01/27 I 17 ,, ,, Type Inspector Fac Type 18IJ 19 I 20 [1 IIIIIIII III66 Remarks 211 I I I I I I I I I I I IIIIIIIIIIIIIII•IIIIIIIII Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA ---------------Reserved------------ -------- 67 I 169 70 13 j 71 I J 7211.1 73 11 174 751 I I I 1 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 10:30 PM 05/01/27 Permit Effective Date 03/03/01. Exit Time/Date 01:00 PM 05/01/27 Permit Expiration Date 06/09/30 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) /// Bobby Eldridge Burnette/ORC/910-892-2935/ Other Facility Data Name, Address of Responsible Official/Title/Phone and Fax Number Joseph Campbell,P0 Box 1065 Dunn NC.28335//910-897-5129'/ Contactedo 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 Belinda S Henson �Yt{'�1° xi 96y(d_FRO WQ//910-486-1541 Ext.727/9104860707 p O Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. NPDES yr/mo/day Inspection Type 31 NC0043176 111 12I 05/01/27 117 18 Li (cont.) 1 Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Recommendations are as follows: 1. Catwalks for the clarifiers have paint worn from the surfaces, these areas should be repaired in the near. future to eliminate major repairs. 2. The catwalk onto the aerobic digester has areas that the metal surfaces are rusty and worn. These areas should'be repaired immediately. 3. In previous inspection reports dated July 27, 2000, May 29, 2001, March 27, 2002 and January 28, 2004, it was noted that both chlorine and sulfur dioxide cylinders were located side by side in the same room without any division. These gases located side by side can create a hazardous area. 4. A computer program for assisting with the record keeping for preventive maintenance could benefit the facility. Permit Yes Nn NA NF (If the present permit expires in 6 months or less). Has the permittee submitted a new application? • 0 0 • '❑ Is the facility as described in the permit? •❑ O O Are there any special conditions for the permit? 00.0 Is access to the plant site restricted to the general public? 1 O O O Is the inspector granted access to all areas for inspection? •O O O Comment: Operations & Maintenance Yes No NA NF Does the plant have general safety structures in place such as'rails around or covers over tanks, pits, or wells? •❑ ❑ ❑ Is the plant generally clean with acceptable housekeeping? •O O O Comment: Pump Station - Influent Yes No NA NF Is the pump.wet well free of bypass lines or structures? .. O ❑ ❑ . Is the general housekeeping acceptable? - •O O O Is the wet well free of excessive grease? 1 O O O Are all pumps present? • O O O Are all pumps operable? 11. 0 0 0 Are float controls operable? •❑ O O Is SCADA telemetry available and operational? 00110 Is audible and visual alarm available and operational? 1 O O O Comment: Bar Screens. Yes No NA NF Type of bar screen a.Manual 0 b.Mechanical • Are the bars adequately screening debris? .000 Is the screen free of excessive debris? •O O O Is disposal of screening in compliance? •O O O Is the unit in good condition? .000 Comment: Srit Removal Yes No NA NF Type of grit removal a.Manual O b.Mechanical Is the site free of excessive organic content in the grit chamber? •O O O Is the site free of excessive odor? • ❑ O O Is disposal of grit in compliance? 11000 Comment: Grit removal system is operated manually as needed at least daily. Secondary Clarifier Yes No NA NF Is the clarifier free of black and odorous wastewater? •O O O Is the site free of excessive buildup of solids in center well of circular clarifier? • 0 0 0 . Are weirs level? ■ O O O Is the site free of weir blockage? •O O O Is the site free of evidence of short-circuiting? 1000 Is scum removal adequate? 4•❑ O O Ser•.nndnry Clarifier Yes No NA NF Is the site free of excessive floating sludge? .000 Is the drive unit operational? 1 ❑ ❑ ❑ Is the sludge blanket level acceptable? 1 ❑ ❑ ❑ Is the return rate acceptable (low turbulence)? 1 ❑ ❑ ❑ Is the overflow clear of excessive solids/pin floc? 1 ❑ ❑ ❑ Is the surface free of bulking ? 1 ❑ ❑ ❑ Comment: Clarifiers #1 & #2 had 5 feet of sludge depth with a tank depth of 10 feet. Clarifier #3 had a sludge depth of 4 feet with a tank depth of 12 feet. Catwalks appear to have paint worn from the surfaces. These areas should be painted in the near future to eliminate major repairs in the future. Pumns-RAS-WAS Yes No NA NF Are pumps in place? •❑ ❑ ❑ Are pumps operational? •❑ ❑ ❑ Are there adequate spare,parts and supplies on site? 1 ❑ ❑ ❑ Comment: Aeration Basins Yes No NA NF Mode of operation Type of aeration system Diffused Is the basin free of dead spots? •❑ ❑ ❑ Are surface aerators and mixers operational? 111000 Are the diffusers operational? ❑ ❑ ❑ Is the foam the proper color for the treatment process? 1 ❑ ❑ ❑ Does the foam cover less than 25% of the basin' s surface? •❑ ❑ ❑ Is the DO level acceptable? •❑ ❑ ❑ Are settleometer results acceptable? 11000 Comment: Soda ash is added to the Mixed Liquor Suspended Solids for settleability and pH adjustment. flsinfection Yes No NA NF Type of system ? Gas Are cylinders secured adequately? •❑ ❑ ❑ Are cylinders protected from direct sunlight? 1 ❑ ❑ ❑ Is there adequate reserve supply of disinfectant? •❑ ❑ ❑ Is ventilation equipment operational? •❑ ❑ ❑ Is ventilation equipment properly located? •❑ ❑ ❑ Is SCBA equipment available on site? 0 0 0 • Is SCBA equipment operational? 0 0 0 • Is staff trained is operating SCBA equipment? 0 0 0 1 Is staff trained in emergency procedures? •❑ ❑ ❑ Is an evacuation plan in place? 0 0 0 1 Are tablet chlorinators operational? 00110 Are the tablets the proper size and type? ❑ ❑ E ❑ Number of tubes in use? (Sodium Hypochlorite) Is pump feed system operational? ❑ ❑ E ❑ Is bulk storage tank containment area adequate? (free of leaks/open drains) 0 0 • 0 Is the level of chlorine residual acceptable? 0 0 0 • Is there adequate detention time ❑ ❑ ❑ 0 Is the contact chamber free of growth, or sludge buildup? 1 ❑ ❑ ❑ Disinfection Comment: The chlorine cylinders and de -chlorination cylinders are housed in the_same building with no separation. A recommendation would be to separate these two gases to assist with safety for staff. De -chlorination Type of system ? Is the feed ratio proportional to chlorine amount (1 to 1)? 00 M 0 Is storage appropriate for cylinders? 1 0 0 0 Is de -chlorination substance stored away from chlorine containers? o ■ o 0 Is ventilation operational? •0 0 0 Are the tablets the proper size and type? 0 0 • 0 Comment: As noted above, the recommendation is that the chlorine cylinders and de -chlorination cylinders should be stored separately. Are tablet de -chlorinators operational? 0 0 ■ 0 Yes No NA NF Yes No NA NF Number of tubes in use? Comment: Pumo Station - Fffluent Yes No NA NF. Is the pump wet well free of bypass lines or structures? •0 0 0 Is the general housekeeping acceptable? • 0 0 - 0 Is the wet well free of excessive grease? 1 0 0 0 Are all pumps present? • 0 0 0 Are all pumps operable? .000 Are float controls operable? • 1000 Is SCADA telemetry available and operational? 0 • 0 0 Is audible and visual alarm available and operational? •0 0 0 Comment: Facility is staffed 24 hours per day. ,Standby Power Yes No NA NF Is automatically activated standby power available? •0 0 0 Is generator tested weekly by interrupting primary power source? •0 0 0 Is generator tested under load at least quarterly? •0 0 0 Was generator tested & operational during the inspection? 0 0 0 • Do the generator(s) have adequate capacity to operate the entire wastewater site? 1 0 0 0 Does generator have adequate fuel? •0 0 0 Is there an emergency agreement with a fuel vendor for extended run on back-up power? •0 0 0 Comment: I ahoratory Yes No NA NF Are field parameters performed by certified personnel or laboratory? •0 0 0 Are all other parameters(excluding field parameters) performed by a certified lab? • 0 0 0 Is the facility using a contract lab? • 0 0 0 •Are analytical results consistent with data reported on DMRs? 11000 Is proper temperature set for sample storage (kept at 1.0 to 4.4 degrees Celsius)? • 0 0 0 Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees? •0 0 0 Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees? •0 0 0 Comment: Flow Measurement - influent Yes No NA NF Is flow meter used for reporting? 00 ■ 0 Is flow meter calibrated annually? 0 0 ■ 0 Is flow meter operating properly? `= 0 0 II 0 Flow Measurement - Influent Yes No NA NF (If units are separated) Does the chart recorder match the flow meter? ❑ ❑ E ❑ Comment: Flow Measurement - Effluent Yes No NA NF Is flow meter used for reporting? 1 ❑ ❑ ❑ Is flow meter calibrated annually? 1 ❑ ❑ ❑ Is flow meter operating properly? ■ ❑ ❑ ❑ (If units are separated) Does the chart recorder match the flow meter? M ❑ ❑ ❑ Comment: Effluent flow meter was calibrated 10-22-04 by Chadwick Instrument Service. Record Keeoing Yes No NA NF Are records kept and maintained as required by the permit? 1 ❑ ❑ ❑ Is all required information readily available, complete and current? • 0 0 0 Are all records maintained for 3 years (lab. reg. required 5 years)? 1 ❑ ❑ ❑ Are analytical results consistent with data reported on DMRs? 1 ❑ ❑ ❑ Are sampling and analysis data adequate and include: 1 ❑ ❑ ❑ Dates, times and location of sampling 1 Name of individual performing the sampling 1 Results of analysis and calibration 1 Dates of analysis Name of person performing analyses 1 Transported COCs Plant records are adequate, available and include .000 O&M Manual 1 As built Engineering drawings 1 Schedules and dates of equipment maintenance and repairs 1 Are DMRs complete: do they include all permit parameters? 1 ❑ ❑ ❑ Has the facility submitted its annual compliance report to users? ■ ❑ ❑ ❑ (If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator on each shift? 1 ❑ ❑ ❑ Is the ORC visitation log available and current? 1 ❑ ❑ ❑ Is the ORC certified at grade equal to or higher than the facility classification? 1.000 Is the backup operator certified at one grade less or greater than the facility classification? 1 ❑ ❑ ❑ Is a copy of the current NPDES permit available on site? 1 ❑ ❑ ❑ Is the facility description verified as contained in the NPDES permit? 1 ❑ ❑ ❑ Does the facility analyze process control parameters, for example: MLSS, MCRT, Settleable Solids, DO, Sludge •❑ ❑ ❑ Judge, pH, and others that are applicable? Facility has copy of previous year's Annual Report on file for review? 1 ❑ ❑ ❑ Comment: Influent Sampling Yes No NA NF Is composite sampling flow proportional? ❑ ❑ ■ ❑ Is sample collected above side streams? 1 ❑ ❑ ❑ Is proper volume collected? .000 Is the tubing clean? ■ ❑ ❑ ❑ Is proper temperature set for sample storage (kept at 1.0 to 4.4 degrees Celsius)? 1 ❑ ❑ ❑ Is sampling performed according to the permit? II ❑ ❑ ❑ Comment: Fffluent Sampling Yes No NA NF Ffflilent Sampling Yes No _NA NF Is composite sampling flow proportional? • 0 00 Is sample collected below all treatment units? M I 0 ❑ Is proper volume collected? • 0 0 "0 Is the tubing clean? poop Is proper temperature set for sample storage (kept at 1.0 to 4.4 degrees Celsius)? 'IE 0 0 0 Is the facility sampling performed as required by the permit (frequency, sampling type representative)? 1 000 Comment: Aerobic Digester Yes flo NA NF • ` Is the capacity adequate? 1 0 0 0 Is the mixing adequate? • 000 Is the site free of excessive foaming in the tank? I 0 0 0 Is the odor acceptable? • 11000 Comment: A recommendation is also to repair the catwalk and railings located at the aerobic digester. Fffluent Pipe \OS NC) NA NF Is rightof way to the outfall properly maintained? 0 0 0 1 Are receiving water free of solids and floatable wastewater materials? 0 0 ❑ 1 Are the receiving waters free of solids / debris? 0 0. 0 • Are the receiving waters free of foam other than a trace? 0 0 ❑ 1 Are the receiving waters free of sludge worms? 0 0 0 1 If effluent (diffuser pipes are required) are they operating properly? ❑ 0 0 1 Comment: