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HomeMy WebLinkAboutNC0026921_Inspection_20070221Michael 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 26, 2007 Larry G Hagin, Mayor Town of Parkton PO Box 55 Parkton NC 28371 SUBJECT: February 21, 2007 Compliance Evaluation Inspection Town of Parkton Parkton WWTP Permit No: NC0026921 Robeson County Dear Mr. Hagin: Enclosed please find a copy of the Compliance Evaluation Inspection form from the inspection conducted on February 21, 2007. The Compliance Evaluation Inspection was conducted by Mark Brantley, Environmental Chemist, and Hughie White, Environmental Specialist, of the Fayetteville Regional Office. The cooperation of Philip James Schroeder, Grade III ORC, and Terry Wagers, Grade I back-up ORC, was greatly appreciated. The facility was found to be in Compliance with permit NC0026921 however, there are several items that need to be addressed to help ensure that the WWTP remains compliant with its NPDES permit. As a reminder, preservation of the Waters of the State can only be achieved through consistent NPDES Permit compliance. COMMENTS • During the inspection it was noted that the generator has been out of service since November 2006. Operations staff stated that the generator will start up and then shut down. Operations staff tried to start the generator during the inspection but the battery was dead. Please have the generator repaired as soon as possible so it can power the WWTP in times of power outages. • The exhaust fan in the chlorine room was not operable during the time of the inspection. As a safety precaution for the operation staff please repair the exhaust fan immediately. • The chlorine flow pacing system was repaired recently. Please keep this system running properly to help ensure proper disinfection of the effluent. • The WWTP exceeded the permitted flow of 0.2 mgd six times for the calendar year of 2006. These violations appeared to be caused by I/I problems in the collection system. The town should address this problem immediately to help the WWTP maintain NPDES compliance. Please contact North Carolina Rural Water for assistance in completing an I/I study on the town's collection system. They will come out and assist the town's staff in smoke testing the collection system. It was also noted during the inspection that the effluent flow meter was found to be off by 30,000 gallons at its last calibration on February 8, 2006. The town may find it necessary to have the flow meter calibrated every 6 months to help ensure proper operation of the flow meter and the chlorine pacing system. 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 One North Carolina ;Naturally An Equal Opportunity/Affirmative Action Employer — 50% Recycled/10% Post Consumer Paper • The town has failed the toxicity testing for the last quarter of 2006 and the first quarter of 2007. It is believed that the way the WWTP is de -chlorinating the effluent is causing the failure. Currently operations staff is placing 3 to 4 de -chlorination tablets on a ledge at the end of the chlorine contact chamber 3 to 4 times daily. This is not a very consistent way of de -chlorinating the effluent since at times there may be too much of the de -chlorination agent in the water and other times there may not be enough of the de - chlorination agent. The Division of Water Quality recommends that the town install a more systematic way of de -chlorinating the effluent instead of just placing tablets on a ledge at the end of the chlorine contact chamber. This means installing a more reliable tablet feeder, a liquid de -chlorination system, or a gas de -chlorination system. • Please continue to maintain the effluent right of way in case repairs have to be made in the future to the line. Please respond in writing to the above mentioned comments to the Fayetteville Regional Office of the Division of Water Quality by March 26, 2007. In your response please include an update on the plans for the Town of Parlcton to send its wastewater to the Red Springs Waste Water Treatment Plant. 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, AptA 64,4„a4--- Marls Brantley Environmental Chemist Surface Water Protection Section Fayetteville Regional office cc: Philip James Schroeder, ORC Central Files Fayetteville Files United States Environmental Protection Agency E PA 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 15I 31 NC0026921 111 121 07/02/21 117 Type Inspector Fac Type 18I cl 19I sI 20I II I I I I I I I I I 1 I 1 I I I 166 Remarks 211 I I I I I I I I I I I 1 1 1 1 I I I I I 1 I I I I I I I I I Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA Reserved 671 169 70 I I 711 NI 72 I N I 731 l l 74 751 I l l 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) Parkton WWTP Loop Rd Parkton NC 28371 Entry Time/Date 09:00 AM 07/02/21 Permit Effective Date 04/12/01 Exit Time/Date 11:00 PM 07/02/21 Permit Expiration Date 09/07/31 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) /// Philip James Schroeder/ORC/910-865-5164/ Other Facility Data - Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Larry G Hagin,PO Box 55 Parkton NC 28371//910-858-3360/ No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Schedules as necessary) „?-: Permit Flow Measurement . Operations & Maintenance Records/Reports Self -Monitoring Program 1;• Sludge Handling Disposal Yr Facility Site Review Compliance and checklists Effluent/Receiving Waters :t,: Laboratory Section D: Summary of Finding/Comments (Attach additional sheets of narrative (See attachment summary) Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date Hughie White ;, i ` �^' FRO NQ//910-433-3300 Ext.708/ 3 , /'-0/ Mark Brantley iiti44.A.. 8 FRO WQ//910 433 3300 Ext.727/ 2 —.2q_c, Signature of Management A eviewer Belinda S Henson .' • f w 1 Agency/Office/Phone and Fax Numbers Date /�� �% lft!!'�G�J, 11.�17 t0 FRO WQ//910-433-3300 Ext.726/ 3 -( -V 1 EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page # 1 31 NPDES yr/mo/day Inspection Type NC0026921 I11 12I 07/02/21 117 181 0I (cont.) 1 Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) The Parkton Wastewater Treatment Plant was clean and neat in appe arance at the time of the inspection. 2006 VIOLATIONS REVIEW The WWTP exceeded the permitted flow of 0.2 mgd six times for the calendar year 2006. These violations were caused by I/1 problems on the collection system. The town needs to address this problem immediately to help the WWTP maintain NPDES compliance. Also the town has failed the toxicity testing for the last quarter of 2006 and the first quarter of 2007. It is believed that the way the WWTP is de -chlorinating the effluent is causing the failure. The Division of Water Quality recommends that the town install a more systematic way of de -chlorinating the effluent instead of just placing tablets on a ledge at the end of the chlorine contact chamber. RECORDS REVIEW The DMR's for the months of September 2006 and Novem ber 2006 were compared to laboratory bench sheets and appeared to be in order at the time of the inspection. Page # 2 Permit: NC0026921 Owner - Facility: Parkton WVVTP Inspection Date: 02/21/2007 Inspection Type: Compliance Evaluation Compliance Schedules Yes No NA NE Is there a compliance schedule for this facility? ® ❑ ❑ ❑ Is the facility compliant with the permit and conditions for the review period? ❑ p Comment: Please see summary page for more information. Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? ®❑ ❑El Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge m n n ❑ Judge, and other that are applicable? Comment: Facility analyzes pH, dissolved oxygen levels, and sludge blankets as process controls. Permit Yes No NA NE (If the present permit expires in 6 months or less). Has the permittee submitted a new application? ❑ ❑ gi Is the facility as described in the permit? E33 n ❑ # Are there any special conditions for the permit? ❑ ❑ ❑ Is access to the plant site restricted to the general public? r ❑ ❑ El Is the inspector granted access to all areas for inspection? El ❑ ❑ ❑ Comment: Record Keeping Yes No NA NE Are records kept and maintained as required by the permit? ® ❑ ❑ n Is all required information readily available, complete and current? ® E ❑ ❑ Are all records maintained for 3 years (lab. reg. required 5 years)? El ❑ Are analytical results consistent with data reported on DMRs? 0 El n Is the chain -of -custody complete? ® ❑ ❑ ❑ Dates, times and location of sampling Name of individual performing the sampling Results of analysis and calibration 63 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? ❑ ❑ ® ❑ Page # 3 Permit: NC0026921 Owner - Facility: Parkton WWTP Inspection Date: 02/21/2007 Inspection Type: Compliance Evaluation Record Keeping 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: Please place a copy of the current NPDES permit at the wastewater 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: Back up ORC, Terry Wagers, states that the effluent right of way is passable. 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 on Feburary 8, 2007 by Carolina Technical Services. 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 for properly waste sludge? Comment: Facility has not wasted for some time. In fact the WWTP has been recently seeded with some mixed liquor from the St. Pauls WWTP. Drying Beds Is there adequate drying bed space? Is the sludge distribution on drying beds appropriate? Are the drying beds free of vegetation? Yes No NA NE Eg nnn mnnn ® nnn nunn ®nnn Yes No NA NE ®nnn n®n n n®o Yes No NA NE o nnn ® nnn ® nnn n n®n Yes No NA NE n nn® n nn nnn El n nn nnn Yes No NA NE n nn® nnn® n nno Page # 4 Permit: NC0026921 Owner - Facility: Parkton WWTP Inspection Date: 02/21/2007 Inspection Type: Compliance Evaluation Drying Beds Yes No NA NE # Is the site free of dry sludge remaining in beds? n n 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 n # Is the sludge land applied? n n n (Vacuum filters) Is polymer mixing adequate? ❑ ❑11 Comment: Drying beds are not used because the WWTP is not generating any sludge. The WWTP is severely underloaded. Bar Screens Yes No NA NE Type of bar screen a.Manual b.Mechanical ❑ Are the bars adequately screening debris? ® ❑ n ❑ Is the screen free of excessive debris? ® ❑ n n Is disposal of screening in compliance? m n n ❑ Is the unit in good condition? c ❑ ❑ Comment: Secondary Clarifier Yes No NA NE Is the clarifier free of black and odorous wastewater? ■ ❑ n n Is the site free of excessive buildup of solids in center well of circular clarifier? ■ ❑ n n Are weirs level? ® ❑ n n Is the site free of weir blockage? ® n ❑ ❑ Is the site free of evidence of short-circuiting? ® ❑ ❑ n Is scum removal adequate? ❑ n ■ ❑ Is the site free of excessive floating sludge? ® n ❑ n Is the drive unit operational? nnen Is the return rate acceptable (low turbulence)? 'inn n Is the overflow clear of excessive solids/pin floc? ® n n n Is the sludge blanket level acceptable? (Approximately 'A of the sidewall depth) ® ❑ n n Page # 5 Permit: NC0026921 Owner - Facility: Parkton wwTP Inspection Date: 02/21/2007 Inspection Type: Compliance Evaluation Secondary Clarifier Comment: The sludge blankets were 2' in the number 1 clarifier and 3' in the number 2 clarifier at the time of the inspection. 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? 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: The dissolved oxygen level was 5.9 mg/I. 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 Ibs 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? Comment: The chlorine level prior to de -chlorination was 4.5 mg/1 CI and 5 ug/I after de -chlorination. De -chlorination Type of system ? Is the feed ratio proportional to chlorine amount (1 to 1)? Is storage appropriate for cylinders? Yes No NA NE Yes No NA NE ®nnn ■ nnn ® nnn o nnn o nnn n n Ennis n n®n Yes No NA NE ®nnn o nnn ® nnn ® nnn • El El ® nnn nnan n n®n Yes No NA NE Tablet n n1=n nn®n Page # 6 Permit: NC0026921 Owner - Facility: Parkton WWTP Inspection Date: 02/21/2007 Inspection Type: Compliance Evaluation De -chlorination # Is de -chlorination substance stored away from chlorine containers? Are the tablets the proper size and type? Comment: De -chlorination tablets are currently being placed on a ledge at th e end of the chlorine contact chamber 3 to 4 times a day. Please see cover letter for more information. Are tablet de -chlorinators operational? Number of tubes in use? Comment: Pumps-RAS-WAS Are pumps in place? Are pumps operational? Are there adequate spare parts and supplies on site? Comment: Laboratory 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: Facility uses TBL as their contract laboratory. Influent Sampling # Is composite sampling flow proportional? Is sample collected above side streams? 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 sampling performed according to the permit? Comment: Effluent Sampling Is composite sampling flow proportional? Yes No NA NE ran El=l onnn nnan Yes No NA NE Ennn ®nnn n non Yes No NA NE ® nnn o nnn ® nnn Linn El n El nn■n Yes No NA NE WHEW ® nnn Ennn ® nnn nnn® nnn® Yes No NA NE n n®n Page # 7 Permit: NC0026921 Owner - Facility: Parkton WWTP Inspection Date: 02/21/2007 Inspection Type: Compliance Evaluation Effluent Sampling Yes No NA NE Is sample collected below all treatment units? ■ n ❑ n Is proper volume collected? ® ❑ 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 the facility sampling performed as required by the permit (frequency, sampling type representative)? n n n Ej Comment: Upstream / Downstream Sampling Yes No NA NE Is the facility sampling performed as required by the permit (frequency, sampling type, and sampling location)? El DEO Comment: Page # 8 Regional Field Inspectors Check List for Field Parameters 1 M, 'Name of site to be Inspected: Par/'/ah c,rw1 ° •Date: /=QL Field Certification # (if applicable): ISM 0 3 _ Inspector: Niru.► NPDES #: lV G CO a to 4 sq Region: . /2 b I. Circle the parameteror parameters performed atthis site: esidual Chlorine Settleable Solids, : • Conductivity; emperatur II. Instrumentation: A,: Does the facility have the equipment necessary to analyze field:parameters..as circled above: A pH meter . Hac4 sens /o, 2. A Residual Chlorine meter / f.rj .74-/ c)U 3. DO meter ii5.7.— S Ts__D No 4• A Cone for settleable solids o-ry @ , 3 a rcie i 5. A thermometer or meter tniat measures temperature Yes No 6. Conductivity meter III: Calibration/Analysis: 1. Is the pH meter calibrated with a 2 buffers and checked. with a third buffer each day of use? No 2. For Total Residual Chlorine, is a check standard analyzed each day of use? es . No 3. Is the air calibration of the DO meter performed each day of use? eS No 4. For Settleable Solids, is 1 liter of sample settled for 1 hour? Yes No 5. Is the temperature measuring device calibrated annually against a certified thermometer? Yes No 6. For Conductivity, is a calibration standard analyzed each day of use? —Yes Nd Ye No . ! -7 l -"as —cy es No 417 y� .07