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Home My WebLink AboutNC0086983_Compliance Evaluation Inspection_20170627Water Resources ENVIRONMENTAL QUALITY ROY COOPER Governor MICHAEL S. REGAN Secretary S. JAY ZIMMERMAN Director June 27, 2017 RECENEDINC1)EQ1DWR Mr. Jerry Hatchet Caswell County BOE JUL 0 6 2017 P0.Box 160 Yanceyville, NC 27379 permitting Water g Section SUBJECT: Compliance Evaluation Inspection (CEI) South Elementary School — WTP NPDES Permit # NCO086983 Caswell County Dear Mr. Hatchett: On June 26, 2017, Min Xiao of this office met with Mr. Matt Smith to perform a Compliance Evaluation Inspection on the NPDES wastewater discharge from the South Elementary School WTP. The inspection findings are detailed below and an inspection checklist is attached. Permit The current permit became effective May 1, 2017, and will expire at midnight on March 31, 2022. The facility does not have a most updated version of permit onsite, please give a copy of the renewed permit to the ORC. Self -Monitoring Program The DMRs were reviewed for the period April 2016 through March 2017. The facility was found to be compliant with the effluent limits for the period. In addition, all monitoring was performed per the frequencies specified in the permit. Research & Analytical Laboratories is contracted to conduct the effluent sampling and measurement for all the parameters. Flow, pH, and Total Residual Chlorine are measured onsite. The rest of the parameters (Total Suspended Solids, Turbidity, Total Iron, and Total Manganese) are tested by lab staff of R&A. Records & Reports The ORC did a good job of keeping the paperwork. A comparison of February 2017 DMR with the field records and laboratory results revealed that pH, Turbidity, TSS, and Chlorine had been correctly transcribed. The unit of Manganese and Iron were reported in mg/L in the R&A lab results, however, the data of Manganese and Iron were directly put into DMR without converting the units from mg/L to ug/L (1000 ug/L=1 mg/L). Please correct it in the following DMRs. Facility Site Review The facility is permitted to continue to treat filter -backwash wastewater generated during the production of potable water from a well utilizing green -sand filter water -treatment technology. The facility includes a well, potassium permanganate tank, chlorine -contact chamber/chlorinator, green -sand filter, water storage tank, dechlorinator and a drain line to outfall. Please note that there is no caustic soda tank onsite any longer, because the ORC explained the pH of the well water was stable and usually around 7. There is no holding basin either, and the effluent directly drains through the underground pipeline to the outfall. State of North Carolina I Environmental Quality I Water Resources 450 West Hanes Mill Road, Suite 300, Winston-Salem, NC 27105 Phone 336-776-980011ntemet www ncdenr gov Flow Measurement The NPDES permit requires instantaneous or estimate flow recording twice a month. An water meter is used to read flow data. Per Part I. A (1) Conditions of the permit, it is required that "All samples shall be collected during the backwash cycle", which means the effluent samples should be collected during programmed backwash period. However, currently, the samples were collected in other time which needs the ORC to manually start the backwash process. It was suggested the facility reprogram the backwash time to make it fall into scheduled working hours, so that the ORC could collect samples while the green -sand filter is backwashing. The ORC is now starting to work on this issue. Operations & Maintenance There appeared to be no issues with the facility operations and maintenance at the time of inspection. Effluent/Receiving Waters Effluent is discharged to an unnamed tributary to Hyco Creek, a waterbody currently classified C within Sub -basin 03-02-05 of the Roanoke River Basin. No discharge was observed at the time of inspection. Should you have any questions concerning this report, please contact Min Xiao or me at (336) 776-9800. Sincerely, f2��`Sherri V Knight, PE, Regional Supervisor Water Quality Regional Operations Section Division of Water Resources, NCDEQ cc. Matt Smith (mpsmith82741@gmail.com) Central Files NPDES Unit WSRO Files r United States Environmental Protection Agency Form Approved EPA Washington, D C 20460 OMB No 2040-0057 Water Compliance Inspection Report Approval expires 8-31-98 Section A National Data System Coding (i e, PCS) Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type 1 IN 1 2 15 1 3 I N00086983 I11 12 17/06/26 17 18 [.S I 19 I! j 20 I 2111 1 1 I I I I I I 11 I 1 1 I I I I I I I I I I I I I I I I I I I I 11 I I I I I l66 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA -- Reserved ----- 67 70 L _ 71 — 72 LJ 73 I 174 75 1 1 1 1 I_U80 Section B FacilityData Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include Entry Time/Date Permit Effective Date POTW name and NPDES permit Number) 09 43AM 17/06/26 17/05/01 South Elementary WTP 8925 NC Hwy 86 S Exit Time/Date Permit Expiration Date Mebane NC 27302 10 38AM 17/06/26 22/03/31 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data /// Matthew P Smith/ORC/336-414-8274/ Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Jerry A Hatchett,8925 NC Hwy 86 S Mebane NC 27302/Maintenance Director/336-694-4116/ No Section C Areas Evaluated During Inspection (Check only those areas evaluated) Permit 0 Flow Measurement Operations & Maintenance 0 Records/Reports Self -Monitoring Program 0 Facility Site Review Effluent/Receiving Waters 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 Min Xiao WSRO WQ//336769800/ x/ X l`&,o 612�IaDo Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date 1)017 EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete Page# NPDES yr/mo/day 31 NCO086983 I11 12 17/06/26 17 Inspection Type 18 ICI Section D Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) Page# 10 Permit. NCO086983 Owner - Facility. South Elementary WTP Inspection Date: 06/26/2017 Inspection Type- Compliance Evaluation Yes No NA NE Are records kept and maintained as required by the permit? M ❑ Permit Yes No NA NE (If the present permit expires In 6 months or less) Has the permittee submitted a new ❑ ❑ M ❑ application? M ❑ ❑ ❑ Is the facility as described In the permit? ❑ 0 ❑ ❑ # Are there any special conditions for the permit? ❑ M ❑ ❑ Is access to the plant site restricted to the general public? ❑ ❑ ❑ Is the Inspector granted access to all areas for Inspection? ❑ ❑ ❑ Comment Please note that there is no caustic soda tank onsite any longer, because the ORC explained the pH of the well water was stable and usually around 7 There is no holding basin either, and the effluent directly drains through the underground pipeline to the outfall Record Keepina Yes No NA NE Are records kept and maintained as required by the permit? M ❑ ❑ ❑ Is all required Information readily available, complete and current? 0 ❑ ❑ ❑ Are all records maintained for 3 years (lab reg required 5 years)? M ❑ ❑ ❑ Are analytical results consistent with data reported on DMRs? M ❑ ❑ ❑ Is the chain -of -custody complete? 0 ❑ ❑ ❑ Dates, times and location of sampling 2022 Name of individual performing the sampling Results of analysis and calibration Dates of analysis Name of person performing analyses Transported COCs I Are DMRs complete, do they Include all permit parameters? ❑ ❑ ❑ Has the facility submitted Its annual compliance report to users and DWQ? ❑ ❑ 0 ❑ (If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator ❑ ❑ 0 ❑ on each shift? Is the ORC visitation log available and current? M ❑ ❑ ❑ Is the ORC certified at grade equal to or higher than the facility classification? ❑ ❑ M ❑ Is the backup operator certified at one grade less or greater than the facility classification? ❑ ❑ ❑ 0 Is a copy of the current NPDES permit available on site? ❑ M ❑ ❑ Facility has copy of previous year's Annual Report on file for review? ❑ ❑ 0 ❑ Comment The current permit became effective May 1. 2017, and will expire at midnight on March 31, 2022 Flow Measurement - Effluent Yes No NA NE Page# 3 Permit NCO086983 Inspection Date: 06/26/2017 Flow Measurement - Effluent # Is flow meter used for reporting? Is flow meter calibrated annually? Owner - Facility: South Elementary WTP Inspection Type: Compliance Evaluation Is the flow meter operational? (If units are separated) Does the chart recorder match _he flow meter? Yes No NA NE ■ ❑ ❑ ❑ ❑ ❑ ■ ❑ ■ ❑ ❑ ❑ ❑ ❑ ■ ❑ Comment An water meter Is used to read flow data It is suggested the facility reprogram the backwash time to make it fall into normal workina hours. so that the ORC can collect samples while the green -sand filter is backwashing Yes No NA NE Is right of way to the outfall properly maintained? 0 De -chlorination Yes No NA NE Type of system ? Tablet ❑ ❑ Is the feed ratio proportional to chlorine amount (1 to 1)? ❑ ❑ M ❑ Is storage appropriate for cylinders? M ❑ ❑ ❑ # Is de -chlorination substance stored away from chlorine containers? M ❑ ❑ ❑ Comment Are the tablets the proper size and type? Are tablet de-chlonnators operational? Number of tubes in use? Comment - Operations & Maintenance Is the plant generally clean with acceptable housekeeping? Does the facility analyze process control parameters, for ex MLSS, MCRT, Settleable Solids, pH, DO, Sludge Judge, and other that are applicable? Comment ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ 1 Yes No NA NE M ❑ ❑ ❑ ❑ ❑ M ❑ Effluent Pipe Yes No NA NE Is right of way to the outfall properly maintained? 0 ❑ ❑ ❑ Are the receiving water free of foam other than trace amounts and other debris? ❑ ❑ 0 ❑ If effluent (diffuser pipes are required) are they operating properly? ❑ ❑ M ❑ Comment Effluent is discharged to an unnamed tributary to Hyco Creek, a waterbody currently classified C within Sub -basin 03-02-05 of the Roanoke River Basin No discharge was observed at the time of Inspection Page# 4