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Home My WebLink AboutNC0035708_Inspection_20090216Ae7A NCDENR North. Carolina Department of Environment and Natural Resources Division of Water Quality Beverly.Eaves Perdue Coleen H. Sullins Governor Director February 16, 2009 Dennis L. Brobst Moore County Public Utilities Director P.. O. Box 1927 Carthage, NC 28327 Subject: COMPLIANCE EVALUATION INSPECTION (CET) Moore County Water Pollution Control Plant NPDES Permit No. NC0037508 Moore County Dear Mr. Brobst: Dee Freeman Secretary Enclosed you will find a copy of the Compliance Evaluation Inspection report for the inspection conducted on February 5, 2008. As part of the inspection a tour of the Wastewater Treatment Plant was conducted. All observations are in PartD. Summary of Findings/Comments of this inspection report. It is recommended that the following equipment be repaired: one of the two center flow mechanical bar screens, the screw conveyer for the grit chamber, the sludge thickener, one of the four influent dry pit submersible pumps, and the automatic flow paced dosage for the chlorine and the dechlor. If you have any questions or comments concerning this report or require clarification on part(s) of this report, please feel free to contact me at (910) 433-3312. Environmental Specialist cc: Brant Sikes, Wastewater Treatment Plant Superintendent Enclosures: EPA Water Compliance Inspection Report Regional Field Inspectors Check List for Field Parameters 225 Green St., Suite 714, Fayetteville, NC 28301-5043 Phone: 910-433-33001 FAX: 910-486-07071 Customer Service: 1-877-623-6748 Internet: www.ncwaterquality.org An Equal Opportunity! Affirmative Action Employer One. 2littarilly United States Environmental Protection Agency EWashington, D.C. 20460 �i`i//�� 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 1 51 31 NC0037508 111 121 09/02/05 1 17 Type Inspector Fac Type 181 CI 19I SI 2011 1. I_I III I III 1 1 1 1 1 166 Remarks 211 1 1 1 1 1 1 1 1 1 1 1 1 I I I l 1 1 1 I 1 IN 1 I 1_I Ill Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA Reserved 671 3.0 1 69 701 41 711 I 721 N1 731 1 J 174 751 III 1 1 1 1 80 I Section B: Facility Data Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include POTW name and NPDES permit Number) Moore County WPCF 1094, Addor Rd - Aberdeen NC 28315 Entry Time/Date 10:00 AM 09/02/05 Permit Effective Date 05/07/01 Exit Time/Date 02:30 PM 09/02/05 Permit Expiration Date 09/07/31 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) /// Jeffery W Corder/ORC/910-281-3146/ Other Facility Data Name, Address of Responsible Official/Title/Phone and Fax Number Dennis L Brobst,PO Box 1927 Carthage NC.28327/Public Utilities Contacted Director/910-281-3146/9102812047- No • . Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Waters as necessary) Permit _ra Flow Measurement '> Operations & Maintenance Records/Reports ffi Self -Monitoring Program ' Sludge Handling Disposal t7 Facility Site Review ? Effluent/Receiving Laboratory - Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists (See attachment summary) Name(s) and Si , ure(s) of Inspector(s) t Agency/Office/Phone and Fax Numbers . Date i Dale Lopez ff FRO WQ//910-433-3300 Ext.712/ 00 ‘ et") J d Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page # 1 • NPDES yr/mo/day Inspection Type 3I NC0037508 111 12I 09/02/05 I17. 18ICI (cont.) 1 Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) On the day of this Compliance Evaluation Inspection, the facility appeared to be in compliance with the conditions of the NPDES permit. However, the following observations were noted. This facility had two center flow mechanical bar screens that were kept in the automatic mode; one was out of service. When checked at 1 PM, the 24-hour 001 effluent composite sampler had not collected sample for the morning of 2/5/2009, and the refrigerator temperature was 0 degrees Celius. The aeration in the grit removal unit was operational, however, the screw conveyer was not operational. This repair has been approved in the upgrade. The upgrade will begin in 2010, and finish in 2012. The Sludge Thickener has been out of service for approximately ten years. It will be evaluated for repair in the upgrade. On the day .of the inspection, one of the four dry pit submersible pumps was clogged. The flow paced dosage for chlorine and dechlor was out -of -service because of lightning. This facility received wastewater for the following towns: Southern Pines, Aberdeen, Pinehurst, Carthage, and Pine Bluff. Two 1200 HP generators handle the -whole plant. They were tested every month (sometimes weekly), and sometimes under load. The. influent flow meter (used for reporting in DMRs), was calibrated quarterly. Page # 2 Permit: NC0037508 Owner - Facility: Moore County WPCF Inspection Date: 02/05/2009 Inspection Type: Compliance Evaluation Operations & Maintenance Yes No NA NE Is.the plant generally clean with acceptable housekeeping? Ez❑ n n Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge f 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 is the facility as described in the permit? . # Are there any special conditions for the permit? n n n Is access to the plant site restricted to the general public? r7 Is the inspector granted access to all areas for inspection? ❑ rl Comment: Record Keeping Are records kept and maintained as required by the permit? 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? 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? (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? Yes No NA NE nnn nnn_ hannn nnn n nnn nnnrzg n n n El El ®nnn nnn onnn Pie Page # Permit: NC0037508 Owner - Facility: Moore County WPCF Inspection Date: 02/05/2009 Inspection Type: Compliance Evaluation Record Keeping Facility has copy of previous year's Annual Report on file for review? 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? nnn Comment: No flow charts. Pump Station - Influent Is the pump wet well free of bypass lines or structures? Is the wet wet 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 n nn Comment: On the day of the inspection, one influent of the four dry pit submersible pumps was clogged. Central Security is notified when the following fail: the pumps and blowers for the first and second stage, all three sets of clarifiers. There is a high water alarm at the raw sewage. 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: This facility has two center flow mechanical bar screens that are kept in the automatic mode. One was out of service on the day of the inspection. Grit Removal Yes No NA NE ✓ nnn ED n nnn Yes No NA NE o n n n n nn n nn n nn O nnn O nnn O nnn Yes No NA NE n Yes No NA NE Page # • Permit: NC0037508 Owner - Facility: Moore County WPCF Inspection Date: 02/05/2009 Inspection Type: Compliance Evaluation 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:. The grit removal unit's aeration is operational, but it is not used because the screw conveyer was not operational. It has been approved for repair in the upgrade. Presently; the level of grit is monitored with a sludge judge. The grit is manually removed, hauled to the drying beds, and the dried sludge is hauled to landfill or McGill Environmental handles it. Also, the Sludge Thickener unit has been out of service for approximately ten years (1999). It will also be evaluated for inclusion in the upgrade for repair. Primary Clarifier 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? 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 sludge blanket level acceptable? Is the sludge blanket level acceptable? (Approximately'/. of the sidewall depth) Comment: Secondary Clarifier 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? Is the site free of weir blockage? Is the site free of evidence of short-circuiting? Is scum removal adequate? Yes No NA NE n ■ nnn■ nnn■ ■ El n Yes No NA NE ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn ■ n n n ■ nnn ■ nnn Yes No NA NE ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn Page # 5 Permit: NC0037508 Owner - Facility: Moore County WPCF Inspection Date: 02/05/2009 Inspection Type: Compliance Evaluation Secondary Clarifier Is the site free of excessive floating sludge? Is the drive unit operational? Is the return rate acceptable (lowturbulence)? • Is the overflow clear of excessive solids/pin floc? Is the sludge blanket level acceptable? (Approximately % of the sidewall depth) Comment: 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: Disinfection -Gas Are cylinders secured adequately? Are cylinders protected from direct sunlight? Is there adequate reserve supply of disinfectant? 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? Does the Stationary Source have more than 2500 lbs of Chlorine (CAS No. 7782-50-5)? 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? Yes No NA NE onnn Ennn n nn n nn nnn Yes No NA NE Ext. Air 'Diffused Eannn n nn n nn annn Eannn Tan n n n nn Yes No NA NE n nn gannn n nn n nn n nn ®nnn n nln n n n 9.a Page # 6 Permit: NC0037508 Owner - Facility: Moore County WPCF Inspection Date: 02/05/2009 Inspection Type: Compliance Evaluation Disinfection -Gas Comment: The automatic flow paced dosage was out -of -service due to lightning.. Plans are to repair. Presently, the operators are regulating the dosage manually by increasing the flow of chlorine gas each morning between 9 and 10 AM. At 6 PM, the flow of chlorine gas is manually adjusted down. 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: The automatic flow paced dosage was out -of -service due to lightning. Plans are to repair. Presently, the operators are regulating the dosage manually by increasing the flow of the dechlor gas each morning between 9 and 10 AM. At 6 PM, the flow of the dechlor gas is manually adjusted down. • Are tablet de -chlorinators operational? Number of tubes in use? Comment: Anaerobic Digester Type of operation: Is the capacity adequate? # Is gas stored on site? Is the digester(s) free of tilting covers? Is the gas burner operational? Is the digester heated? Is the temperature maintained constantly? Is tankage available for properly waste sludge? Comment: Drying Beds Is there adequate drying bed space? Is the sludge distribution on drying beds appropriate? Are •the drying beds free of vegetation? # Is the site free of dry sludge remaining in beds? Yes No NA _ NE Yes No NA NE Gas nnn nnn nnn nnn Yes No NA NE Floating cover nnn �rinn nn znnn rt nnn nTnn n n I] Yes No NA NE nnn nn nnn nnn Page # 7 Permit: NC0037508 Owner - Facility: Moore County WPCF Inspection Date: 02/05/2009 Inspection Type: Compliance Evaluation Drying Beds Is the site free of stockpiled sludge? Is the filtrate from sludge drying beds returned to•the front of the plant? # Is the sludge disposed of through county landfill? # Is the sludge land applied? (Vacuum filters) Is polymer mixing adequate? Comment: Thirty, -six drying beds, with twenty-six were sand beds, and ten.were. concrete beds. Sludge may be stockpiled up to eighteen months. McGill Environmental handled the hauling of sludge. Solids Handling Equipment Is the equipment operational? n n n co Is the chemical feed equipment operational? ❑ n ❑ Is storage adequate? n ❑ n l3 Is the site free of high level of solids in filtrate from filter presses or vacuum filters? ❑ n n g Is the site free of sludge buildup on belts and/or rollers of filter press? n n nu. Is the site free of excessive moisture in belt filter press sludge cake? n n n o The facility has an approved sludge management plan? nnn Comment: McGill Environmental handled the sludge. The sludge thickener has been out -of -service for approximately 10 years (1999). Ifs repair will be evaluated for the upgrade. Yes No NA NE Ea nnn • nnn o n n n nnn Eannn Yes No NA NE Chemical Feed Is containment adequate? Is storage adequate? Are backup pumps available? Is the site free of excessive leaking? Comment: Presently, use 30% liquid lime. 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 • Finn g nnn • nnn n n n Yes No NA NE El El n nno nnn nnnEfj • nnn Page # Permit: NC0037508 Owner - Facility: Moore County WPCF Inspection Date: 02/05/2009 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: Two 1200 HP generators handle the whole plant. They are tested every month (sometimes weekly),.and sometimes under load. The tanks capacity was 6,270 gallons of diesel,_and on the day of this inspection, there was 5,424 gallons on -hand. There is a special agreement for diesel from the vendor. Effluent Sampling Is composite sampling flow proportional? Is sample collected below - all treatment units? 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)? • Is the facility sampling performed as required by the permit (frequency, sampling type representative)? Comment: The 24 hour composite sample refrigerator was 0 degrees Celsius. Yes No NA NE sinnn Ennn Yes No NA NE tiannn Eun n n onnn Finn nnn nnn Page # 9. Regional Field Inspectors Check List for Field Parameters Name of site to be Inspected: Moore County Water Pollution Control Plant Date:February 5, 2009 Field certification # (if applicable): 134 Inspector:Dale Lopez NPDES #:NC0037508 Region: FRO I. Circle the parameter or parameters performed at this site. Residual Chlorine , Settleable Solids, II. Instrumentation: pH, DO, Conductivity, Temperature A. Does the facility have the equipment necessary to analyze field parameters as circled above? A pH meter Orion 3 Star 2. A Residual. Chlorine meter 3. DO meter YSI 55 A Cone .for settleable solids HACH Odyssey 5. A thermometer or meter that measures temperature. YSI 55 6. . Conductivity meter Orion Model- 150 III. Calibration/Analysis: 1. Is the pH meter calibrated with 2 buffers and checked with a third buffer each day of use? 3 Pt Cal 2. For Total Residual Chlorine, is a check standard analyzed each day of use?. 250 ug/L 3. Is the air calibration of the DO meter performed each day of use? Yes Yes Yes No No No Yes No Yes Yes Yes Yes Yes 4. For Settleable Solids, is 1 liter of sample settled for 1 hour? Yes 5. Is the temperature measuring device calibrated annually against a certified thermometer? 6. For Conductivity, is a calibration standard analyzed each day of use? Yes 100 & 1413, ck w/10, 73.9, &717.5 Yes No No No No No 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: Yes Yes Yes Yes Yes Yes Yes Yes No No No No pH 4 = Dec 2009, pH 7 = Mar 2010, and pH 10.= Sept 2009 The 5 pt curve for chlorine = August 15, 2008 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. 04/23/2002