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Home My WebLink AboutNC0026921_Biomonitoring Inspection_20130719NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Pat McCrory Thomas A. Reeder John E. Skvarla, III Governor Acting Director Secretary July 19, 2013 Larry G. Hagin, Mayor Town of Parkton Post Office Box 55 Parkton, NC 28371 SUBJECT: Compliance Biomonitoring Inspection Town of Parkton Wastewater Treatment Plant NPDES NC0026921 Robeson County Dear Mayor Hagin, Enclosed you will find a copy of the Compliance Biomonitoring Inspection report for the inspection that was conducted on June 25 and June 27, 2013. This inspection included the same objectives as that of a routine Compliance Evaluation Inspection (conducted on June 25) plus an Aquatic Toxicity (AT) test to evaluate the biological effect of the facility's discharge on test organisms, and a Sample Inspection that evaluated the sampling procedure (and the sample testing of certain limited test parameters in your NPDES permit). As part of the inspection, a tour of the Wastewater Treatment Plant was conducted. All observations, three suggestions, and a requirement are in Part D. Summary of Findings/Comments of this inspection report. Using Parkton's sampling equipment, the Outfall 001 24-hour composite samples that were collected on June 25 and June 27 were used in a chronic Ceriodaphnia dubia pass/fail toxicity test. These samples were sent to the Division of Water Quality (AT) Laboratory (located on Reedy Creek Road in Raleigh). Using these samples, the Whole Effluent Toxicity pass/fail test resulted in a "Pass", which indicated that the Effluent would not be predicted to have water quality impacts on the receiving water. The 24-hour Effluent composite sample that was collected from June 24 to June 25 was also analyzed for certain chemistry parameters that have limits in your NPDES Permit. The chemistry analyses were sent to the Division of Water Quality Chemistry Laboratory, located on Reedy Creek Road in Raleigh. The results of these chemistry parameters were as follows: Biochemical Oxygen Demand (BOD) = 5.3 mg/L, Total Suspended Solids (TSS) = 12 mg/L, Total Phosphorus = 0.44 mg/L, Ammonia Nitrogen = 0.16 mg/L, the Nitrate-N plus Nitrite-N = 4.6 mg/L, and the Total Kjeldahl-Nitrogen = 1.1 mg/L). 225 Green Street — Suite 714 — Fayetteville, North Carolina 28301-5043 Phone: 910-433-33001 FAX: 910-486-0707 \ Customer Service 1-877-623-6748 • Internet: www.ncwaterquality.orq An Equal Opportunity \ Affirmative Action Employer NorthCarolina Naturally Mayor Hagin July 19, 2013 Page 2 of 2 Please send this Office a written response to the following requirement, due by August 30, 2013. Requirement #1: Please send this Office a written Plan -of -Action for the drying beds. During the second day of this BIO inspection, I observed a lot of water in each of the drying beds (please see the attached photos). It appeared to me that there was a potential that leakage could occur, or possibly had occurred. After talking with the ORC about my concerns, he spread two 501b bags of lime on the asphalt apron and ground. The ORC also did a quick -fix by using one sump pump in drying bed #1 and another sump pump in drying bed #3. Both of these sump pumps discharged into Oxidation Ditch #2. The ORC noticed that all four of drying beds might be connected to each other because drying beds #2 and #4 also drained down while the wastewater in the adjacent beds #1 and #3 were pumped down. Suggestion #1 --- An Effluent composite refrigerator shelter might protect the composite refrigerator from the summer sun and heat. It is especially hard to maintain the required temperature range of 0 to 6° C during the hot summer weather, especially if the 24-hour sampler and refrigerator are in direct sunlight. The shelter may also extend the life of the refrigerator. Suggestion #2 --- Please replace the Tygon tubing, because the 24-hour composite sample controller indicated that the Tygon peristaltic pump tubing needed replacement. Suggestion #3 --- Please paint the metal areas that were beginning to corrode on the catwalks of the clarifiers. This may prevent repairs due to corrosion in the future. On the days of this inspection, the facility was found to be in compliance with NPDES permit NC0026921. I appreciated the cooperation of Roy Lowder (WWTP ORC). If you have any questions or comments concerning this report, please feel free to contact me at (910) 433- 3312. Sincerely, c Dale Lopez Environmental Specialist Enclosures: EPA Water Compliance Inspection Report Regional Field Inspectors Check List for Field Parameters Fourteen digital photographs of the Parkton drying beds and asphalt apron, and the corrosion on the clarifier catwalks cc: Roy Lowder (WWTP ORC, Town of Parkton) FRO_files-:(Mark, Brantley); United States Environmental Protection Agency A Washington, D.C. 20460 EPH Water Compliance Inspef:tion 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 N I 2 15 I 31 NC0026921 111 121 13/06/25 17 Type Inspector Fac Type 18I B I •19I S I 201 I IIIIIIIIIII.IIII66 Remarks 21IIII II I I I I I I I I I I IIII IIIIIIIIIIII Inspection Work Days Facility Self -Monitoring Evaluation Rating 61 QA 67I 4.0 169 701 3 I 711 721 NI ------- 751 1 I 1 I I 1 180 --------------Reserved 73[ I 174 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 13/06/25 Permit Effective Date 10/01/01 Exit Time/Date 02:00 PM 13/06/25 Permit Expiration Date 14/07/31 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) /// Roy Lemuel Lowder/ORC/252-245-6632/ 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) Permit Flow Measurement • Operations & Maintenance • Records/Reports Self -Monitoring Program • Sludge Handling Disposal Facility Site Review Laboratory r Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) (See attachment summary) ' Name(s) an nature(s) of Inspector(s) Dale Lopez �y L�� Agency/Office/Phone and Fax Numbers Date FRO WQ//910-433-3300 Ext.712/ 7 �+ Be/.) o P 7 Signature of Management A Reviewer - Agency/Office/Phone and Fax Numbers Date e�� Q,Le,y2,0,7/2, 2/ 3 EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page # 1 NC0026921 NPDES yr/mo/day 111 121 13/06/25 1 Section D: Summary of Finding/Comments (J Inspection Type 17 18161 (cont.) 1 This inspection that was conducted on June 254ttach additional sheets of narrative and checklists as necessary) of a routine Compliance Evaluation Inspection I and June 27, 2013. It included the same objectives as that evaluate the biological effect of the facility's dis(conducted on June 25) plus an Aquatic Toxicity (AT) test to evaluated the sampling procedure (and the sancharge on test organisms, and a Sample Inspection that permit). As part of the inspection, a tour of thenple testing of certain limited test parameters in your NPDES observations, three suggestions, and a requirelWastewater Treatment Plant was conducted. All inspection report. Using Parkton's sampling eCnent are in Part D. Summary of Findings/Comments of this were collected on June 25 and June 27 were uluipment, the Outfall 001 24-hour composite samples that These samples were sent to the Division of Wased in a chronic Ceriodaphnia dubia pass/fail toxicity test. Raleigh). Using these samples, the Whole Effl'ter Quality (AT) Laboratory (located on Reedy Creek Road in indicated that the Effluent would not be predictruent Toxicity pass/fail test resulted in a "Pass", which 24-hour Effluent composite sample that was CO3d to have water quality impacts on the receiving water. The certain chemistry parameters that have limits ir,llected from June 24 to June 25 was also analyzed for the Division of Water Quality Chemistry Labor a1 your NPDES Permit. The chemistry analyses were sent to of these chemistry parameters were as follows:tory, located on Reedy Creek Road in Raleigh. The results Suspended Solids (TSS) = 12 mg/L, Total Pho: Biochemical Oxygen Demand (BOD) = 5.3 mg/L, Total Nitrate-N plus Nitrite-N = 4.6 mg/L, and the Tot3phorus = 0.44 mg/L, Ammonia Nitrogen = 0.16 mg/L, the al Kjeldahl-Nitrogen = 1.1 mg/L). Please send this Office a written response totr Requirement #1: Please send this Office a writt1e following requirement, due by August 30, 2013. day of this BIO inspection, I observed a lot of wen Plan -of -Action for the drying beds. During the second photos). It appeared to me that there was a Pater in each of the drying beds (please see the attached After talking with the ORC about my concerns, tential that leakage could occur, or possibly had occurred. ground. The ORC also did a quick -fix by using he spread two 50 lb bags of lime on the asphalt apron and drying bed #3. Both of these sump pumps disc one sump pump in drying bed #1 and another sump pump in four of drying beds might be connected to eachharged into Oxidation Ditch #2. The ORC noticed that all while the wastewater in the adjacent beds #1 ai other because drying beds #2 and #4 also drained down nd #3 were pumped down. Suggestion #1 --- An Effluent composite refrige summer sun and heat. It is especially hard to rrator shelter might protect the composite refrigerator from the the hot summer weather, especially if the 24-hcnaintain the required temperature range of 0 to 6° C during shelter may also extend the life of the refrigerat)ur sampler and refrigerator are in direct sunlight. The Suggestion #2 --- Please replace the Tygon tutor. indicated that the Tygon peristaltic pump tubinc)ing, because the 24-hour composite sample controller needed replacement. Suggestion #3 --- Please paint the metal areas clarifiers. This may prevent repairs due to cornthat were beginning to corrode on the catwalks of the osion in the future. On the days of this inspection, the facility was f appreciated the cooperation of Roy Lowder (Wound to be in compliance with NPDES permit NC0026921. I concerning this report, please feel free to contawTP ORC). If you have any questions or comments lot me at (910) 433-3312. Page # 2 Permit: NC0026921 Owner - Facility: Parkton wNTP Inspection Date: 06/25/2013 Inspection Type: Bioassay Compliance On June 25th and 27th in the Parkton Town Hall, I was introduced to Al McMillan (Town of Parkton Alderman), Sandra McMillan (Town of Parkton Billing Clerk), Debra McNeil (Town Clerk/Finance Officer for the Town of Parkton). Anthony Branch was the Town of Parkton wastewater treatment plant Back -Up ORC. Both of the oxidation ditches were on-line and operational. The dissolved oxygen in oxidation ditch #1 was 6 mg/L, and in ditch #2 it was 3.6 mg/L. As the mixed liquor from the oxidation ditches flowed into each of the two clarifiers, it flowed into an eight foot deep trough that traveled around the clarifiers, and this reduced the flow velocity that allowed the heavier solids to settle to the bottom of the clarifiers. These solids flowed under the trough wall (which extended to a depth that was approximately one foot from the bottom). The ORC measured the solids blanket in the clarifiers with a sludge judge on a twice per week schedule. Well water supplied the chlorine disinfection dilution water. The chlorine injection point was located where #1 clarifier overflow exits from this unit. The #1 clarifier discharge then flowed downhill and merged with #2 clarifier weir overflow discharge on its way to the Parshall Flume and to the chlorine contact chamber. The chlorine contact time was thus extended. Flow paced dosage of chlorine gas was injected by means of a Smart Valve. The dechlor was manually adjusted, and was not based on flow paced dosage. The effluent flow meter was calibrated on 10/25/2012. The next calibration will be due by 10/25/2013. The ultrasonic flow meter was calibrated on 02/05/2013. According to the flow meter technician, there were no corrections to the adjustments that were needed. During the time of this inspection there had been additional Influent flow due to the recent rain events and the amount of Inflow and Infiltration in Parkton. The amount of chlorine usage during this time period was 3 to 4 lbs of chlorine per day. The typical amount of chlorine used was approximately one lb per day. The ORC visited the POTW every day, making adjustments for returning and for wasting solids. The solids were wasted to a holding tank (instead of an aerobic digester) and the decant was sent to oxidation ditch #2. Captor dechlorination (calcium thiosulfate in liquid form) was located near the Effluent composite sampler. The ORC cleaned the chlorine contact chamber approximately every other month by using a portable pump. Solids were pumped from the chlorine contact chamber onto the drying beds. None of the samples were collected at the manhole near the Effluent sample refrigerator. But instead, all of the Effluent samples were collected at the bottom of the step aeration unit. The ORC planned to put a truckload of sand on the drying beds to help with the drying process. The drying bed filtrate was not pumped back into the POTW. The drying bed filtrate either evaporated or seeped into the underlying soil. There was a possibility that there might not be a drying bed filtrate piping system. The drying bed unit as -built drawings could not be located. Debris from a Parkton storm drain had recently been put into #4 drying bed. July 2012 was the last time that dried sludge was hauled to the Robeson County Landfill. It amounted to approximately four cubic yards of dried sludge. Understandably, the POTW would generate very little sludge because the Influent TSS and BOD were very low. The average Influent BOD for March 2013 was 27 mg/L BOD, and the average Influent TSS for March 2013 was 41 mg/L TSS. A Capital Improvement Plan (CIP) was implemented this year in the budget. The CIP might have between five thousand to ten thousand dollars per year for the Town, and some of that amount might be used for the POTW maintenance costs. The Town engineers (McGill & Associates) are in the design phase of planning improvements and repair to address the Town's Inflow & Infiltration. The Town recently received approval for a low interest loan (principal forgiveness loan). The 250-gallon diesel tank for the electrical generator did not have spill containment. According to the ORC, it probably was not double walled. The only telemetry for the POTW was for the electrical power. If power was lost, the ORC would receive a phone call, a text, and an email. He would then go to the POTW to start the electrical generator. This telemetry did not phone the Parkton police department. The diesel generator was run Page # 3 Permit: NC0026921 Owner -Facility: Parkton WWrP Inspection Date: 06/25/2013 Inspection Type: Bioassay Compliance every other month (sometimes under load). It was not tested during this inspection. In order to keep the biomass from leaving the POTW during the recent rain storm events, the ORC turned off the aerator brushes in each oxidation ditch, as well as the rakes in each clarifier. The ORC was almost certain that Parkton was going to have a monthly average flow violation for June 2013. Thankfully, the fecal coliform test results indicated that they were within the permit limits for June. Page # 4 Permit: NC0026921 Owner - Facility: Parkton WWfP Inspection Date: 06/25/2013 Inspection Type: Bioassay Compliance 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 (If the present permit expires in 6 months qr less). Has the permittee submitted a new application? Is the facility as described in the permit? # Are there any special conditions for the permit? Is access to the plant site restricted to the general public? Is the inspector granted access to all areas for inspection? 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 n n.n ■ nnn ■ nnn ■ nnn ■ nnn Yes No NA NE ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn ■ ■ ■ ■ ■ ■ ■ nnn n nn■ n n■n ■ nnn ■ nnn ■ nnn ■ nnn Page # 5 Permit: NC0026921 Owner - Facility: Parkton WWTP Inspection Date: 06/25/2013 Inspection Type: Bioassay Compliance 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: 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: The aerobic digester was used as a holding tank. 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? 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: See Summary section of this CEI report. Bar Screens Type of bar screen a.Manual b.Mechanical Yes No NA NE n nn.■ Yes No NA NE ■ nnn ■ nnn ■ nnn ■ nnn Yes No NA NE n nni n nn■ n nn■ n nn■ n nn■ Yes No NA NE ■ nnn ■ nnn n ■nn ■ nnn ■ nnn n orm ■ nnn n HEW n n■n Yes No NA NE ■ n Page # 6 Permit: NC0026921 Owner - Facility: Parkton wwTP Inspection Date: 06/25/2013 Inspection Type: Bioassay Compliance Bar Screens Yes No NA NE Are the bars adequately screening debris? ■ n n n Is the screen free of excessive debris? ■ ❑ n n Is disposal of screening in compliance? ■ n n n Is the unit in good condition? ■ n n n Comment: Secondary Clarifier Yes No NA NE Is the clarifier free of black and odorous wastewater? ■ n n n Is the site free of excessive buildup of solids in center well of circular clarifier? ■ n n n Are weirs level? ■ n n n Is the site free of weir blockage? • n n n Is the site free of evidence of short-circuiting? ■ n n n Is scum removal adequate? ■ n n n Is the site free of excessive floating sludge? ■ n n n Is the drive unit operational? • n ❑ n Is the return rate acceptable (low turbulence)? • n n n Is the overflow clear of excessive solids/pin floc? • n n n Is the sludge blanket level acceptable? (Approximately'/4 of the sidewall depth) • n n n Comment: Oxidation Ditches Yes No NA NE Are the aerators operational? ■ n n n Are the aerators free of excessive solids build up? norm # Is the foam the proper color for the treatment process? • ❑ ❑ n Does the foam cover less than 25% of the basin's surface? • n n n Is the DO level acceptable? ■ n n n Are settleometer results acceptable (> 30 minutes)? n ❑ ❑ ■ Is the DO level acceptable?(1.0 to 3.0 mg/I) • n n n Are settelometer results acceptable?(400 to 800 ml/I in 30 minutes) n n n • Comment: The Town plans to clean both oxidation ditches of sand and settled solids. Disinfection -Gas Yes No NA NE Are cylinders secured adequately? • n n n Page # 7 Permit: NC0026921 Owner - Facility: Parkton WWTP Inspection Date: 06/25/2013 Inspection Type: Bioassay Compliance Disinfection -Gas 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? 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: The only telemetry for the POTW was for the electrical power. If power was lost, the ORC would receive a phone call, a text, and an email. He would then go to the POTW to start the electrical generator. This telemetry did not phone the Parkton police department. The diesel generator was run every other month (sometimes under load). 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? Yes No NA NE ■ nnn ■ nnn ■ nnn ■ nnn n nn■ n HEW n n■n Yes No NA NE n ■nn ■ nnn ■ nnn n ■nn ■ nnn n nn ■ ■ nnn Yes No NA NE ■ nnn ■ nnn n nn■ Yes No NA NE ■ nnn ■ nnn Page # 8 Permit: NC0026921 Owner - Facility: Parkton WWTP Inspection Date: 06/25/2013 Inspection Type: Bioassay Compliance Laboratory # Is the facility using a contract lab? # Is proper temperature set for sample storage (kept at less than or equal to 6.0 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: De -chlorination Yes No NA NE Type of system ? Liquid Is the feed ratio proportional to chlorine amount (1 to 1)? n n n • Is storage appropriate for cylinders? n n ■ # Is de -chlorination substance stored away from chlorine containers? • n n n Are the tablets the proper size and type? ❑ n • 11 Comment: Captor dechlorination (calcium thiosulfate in liquid form) was located near the Effluent composite sampler. Are tablet de -chlorinators operational? Number of tubes in use? Comment: 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: Please replace the Tygon tubing, because the 24-hour composite sample controller indicated that the Tygon peristaltic pump tubing needed replacement. Grit Removal Type of grit removal a.Manual b.Mechanical Is the grit free of excessive organic matter? Yes No NA NE ■ nnn ■ nn.n nn■n ❑'f] • n Yes No NA NE nn■n ■ nnn ■ nnn ■ nnn ■ nnn ■ nnn Yes No NA NE n n nnn■ Page # 9 Permit: NC0026921 Owner - Facility: Parkton WWTP Inspection Date: 06/25/2013 Inspection Type: Bioassay Compliance Grit Removal Is the grit free of excessive odor? # Is disposal of grit in compliance? Comment: The POTW does not have grit removal. The Town plans to install a grit removal unit in the future. Yes No NA NE nnn■ nnn■ Page # 10 Regional Inspectors' Checklist for Field Parameters Facility Name: Parkton Regional Plant Inspector: Dale Lopez NPDES #: NC0026921 Regional Inspector Contact #: (910) 433- 31 / Field Lab Certification #: 5203 Region: Fayetteville . Lab Contact: Roy Lowder (252) 245-6632 Date: June 25, 2013 I. Check the parameter(s) performed at this site for reporting purposes. ® Total Residual Chlorine (TRC) ® Temperature (TEMP) III.Specific Conductivity (SC) ® pH ® Dissolved Oxygen (DO) ❑ Settleable Residue (SETT) II. General Laboratory (note any exceations in section XI Are instruments, meters, probes, photometric cells, etc. maintained in good condition? /1 Yes ❑ No Are standards, reagents and consumables used within manufacturer expiration dates? [TRC gel standard is exempt.] /1 Yes ❑ No Are.the.f®llowing items documented ( here applicabl) r -4 S Ifem .... , . TRC , pHr TEM Ps DO 4 ... •SETT Date of sample collection* 4 4 J 4 Time of sample collection* -1 4 4 4 Sample collector's initials or signature 4 4 4 4 Date of sample analysis* 4 4 4 4 Time of sample analysis* 4 4 4 4 Analyst initials or signature 4 4 4 4 Sample location J 4 4 4 *Date and time of sample collection and analysis may be the same for in situ or on -site measurements. III TotaiRWOO Ch(lorine _ - Total Residual Chlorine meter make and model: HACH 2800 Is a check standard analyzed each day of use? (Circle one: or liquid standard) ►1 Yes ❑ No _gel What is the assigned/observed value of the daily check standard? 200 pg/L Is a 5-point calibration verification performed? Note date of last verification: i1 Yes ❑ No Alternatively, does the lab construct a linear regression, using 5 standards, to calculate results? Note date of last calibration curve constructed: ❑ Yes ❑ No True values: ►/ pg/L ❑ mg/L 10 30 . 50 200 400 Obtained values: /1 pg/L ❑ mg/L 8 28 54 196 404 What program are samples analyzed on? Program 86 Are results reported in proper units? Check one: /1 pg/L ❑ mg/L '1'Yes ❑ No Are results reported between the facility's permit limit and the compliance limit of 50 pg/L? If value is less than the low standard, report as "<x", where x=low standard conc. ►1 Yes ❑ No Are samples analyzed within 15 minutes of collection? t:1 Yes ❑ No pH meter make and model: HACH senION 1 Is the pH meter calibrated with at least 2 buffers per mfg's instructions each day of use? Note buffers used: ►/ Yes C No Is the pH meter calibration checked with an additional buffer each day of use? Note check buffer used: Yes ❑ No Does the check buffer read within ±0.1 S.U. of the known value? ►1 Yes ❑ No Are the following items documented: Meter calibration?s I Yes ❑ No Check buffer reading? i1 Yes ❑ No Are samples analyzed within 15 minutes of collection? I Yes ❑ No Are sample results reported to 0.1 pH units? 0 Yes ❑ No V , _ Temperature r ^_ k = _ _ What instrument(s) is used to measure temperature? Check all that apply: ❑ pH meter . ❑ DO meter ❑ Conductivity meter ❑ Digital thermometer ►1 Glass thermometer Is the instrument/thermometer calibration checked at least annually against a NIST traceable or NIST certified thermometer? ►1 Yes ❑ No 06/24/2013 Are temperature corrections (even if zero) posted on the instrument/thermometer? I1 Yes E No Are samples measured in situ or on -site? [REQUIRED - there is no holding time for temperature] /1 Yes ❑ No Are sample results reported in degrees C? 1 Yes ❑ No VDissotved, Oxygep _ ._i _ x..... .__ DO meter make and model: YSI 55 Is the air calibration of the DO meter performed each day of use? /1 Yes ❑ No Are the following items documented: Meter calibration? 1 Yes ❑ No Are samples analyzed within 15 minutes of collection? E/ Yes ❑ No Are results reported in mg/L? ►1 Yes ❑ No Vil Conductivity__ - _ _ _ Conductivity meter make and model: Is the meter calibrated daily according to the manufacturer's instructions? Note standard used (this is generally a one -point calibration): ❑ Yes ❑ No Is a daily check standard analyzed? Note value: ❑ Yes E. No Are the following items documented: Meter calibration? ❑ Yes ❑ No Are samples analyzed within 28 days of collection? , n Yes ❑ No Are results reported in pmhos/cm (some meters display equivalent pS/cm units)? ❑ Yes ❑ No V1II - t Settleable Residue = _ Does the laboratory have an Imhoff Cone in good condition? ❑ Yes ❑ No Is the sample settled for 1 hour? ❑ Yes ❑ No Is the sample agitated after 45 minutes? ❑ Yes ❑ No Are the following items documented: Volume of sample analyzed? Note volume analyzed: ❑ Yes ❑ No Date and time of sample analysis (settling start time)? ❑ Yes ❑ No Time of agitation after 45 minutes of settling? ❑ Yes ❑ No Sample analysis completion (settling end time)? Yes ❑ No Are samples analyzed within 48 hours of collection? ❑ Yes No Are results reported in ml/L? ❑ Yes ❑ No r : 1Ye'''''-1❑ No - � .,._, 1X ;Was a paperitra l (comparrng contract lab -and on site data toDMF) ,Ormeffav,Ilstmontf s rev ewed "LL - ,,IUlarch_20134; X „'- `s follow.:up;by the3Laboratory,Certifcation, program {recommended?... ❑ Yes, s 6m 'No, .:: XI. Additional comments: Expiration dates of pH buffers: pH 7 = November 2014 pH 10 = October 2014 pH 4 = May 2013 The mV reading of a 7 pH buffer was +14.8 mV Please submit a copy of this completed form to the Laboratory Certification program at: DWQ Lab Certification, Chemistry Lab, Courier # 52-01-01 Electronic copies may be emailed to linda.chavis(c�ncdenr.gov. Revision 04/20/2012 Mayor Larry G. Hagin Finance Director / Town Clerk Debra McNeill Chief of Police Ronald Starling Public Works Director Roy Lowder August 23, 2013 Mr. Dale Lopez Environmental Program North Carolina Division o° 225 Green Street,-Suite`'r Fayetteville, North Carolina 28301- 504: Post Office Box 55 / 28 West David Parnell St Parkton, North Carolina 28371 Office: 910-858-3360 Fax: 910-858-9808 Dear Mr. Lo As ° .re Compliance Evaluation ueste w astewa er C o[iecuori ��,y Parkton's current (2013 2014) app .rove. rrr runrnaret. 4 has recently sought grant and torn rig". tn nertf.), DENR-FRO TOWN OF PARKTON SEP 0 3 2013 WQ Lc.11,6"414610,-- Alderman Al McMillan Alf Parnell Robin Hill Benton Finley Fran Meinert %I1owing,your (WTF) and " etion includes $33,722 sewer systems. We uiredto upgrade t' r '3' im The Town subsenueritiy authorized'the submittal of':a funcizng application to the North Carolina Division of Water Quality `(NCD_WQ) Infrastructure Finance Section 'in•>September 2012, and we were .pleased to learn that $1000000 was allocated to the Town, including $500,000 in "principal forgiveness" funding. The Town intends to use this money to upgrade the collection system and WWTF, including: 2 • Rehabilitate or replace all sewer service lateral piping in the Town in an effort to reduce infiltration and inflow into the collection system • Rehabilitate Lift Station No. 2 with a modem control panel and internal piping • Install a new mechanical bar screen to replace the existing influent manual screen at the WWTF • Install a grit removal system at the WWTF • Expand the existing chlorine contact basin -to provide additional contact time and flow -pace the existing dechlorination system While the above items will 'address the fowni's most critical wastewater needs, we understand that additional improvements are necessary as noted in your letter. These are primarily "maintenance" items, such as: • Drying beds drainage- Temporarily install two pumps (one in bed land the second in bed 2 with the discharge of both pumps into ditch 2). Permanent fix is to locate the drainage discharge pipe and install a manhole with pump and pump it to ditch 2. • Effluent composite refrigerator: This will be handled with the principal forgiveness funding. • Tygon tubing: Was replaced on July 17t. • Paint rusted areas: This will need to be budgeted and try to paint a little each year after its budgeted. Mr. Lopez_ the Town of Parkton appreciates your support of our recent funding application, and we ntinue to actively seek funding opportunities as they become available to address our wastewater needs. As always, if you have any questions, please do not hesitate to contact me_ Sincerely, Roy Lowder, Public Works Director Town of Parkton Cc: Larry G. Hagin, Mayor Board of Alderman