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HomeMy WebLinkAboutNC0045128_Compliance Evaluation Inspection_20171205Water Resources Environmental Quality December 5, 2017 Jay Fuller Alamance -Burlington School System 1732 Vaughn Road Burlington, NC 27217 Subject: Compliance Evaluation Inspection Report NPDES Permit NCO045128 Sylvan Elementary School WWTP, Alamance County Dear Mr. Fuller: ROY COOPER Governor MICHAEL S. REGAN Secretary LINDA CULPEPPER Interim Director DEC 2017 Wager Resources Perrating On November 30, 2017, Paul DiMatteo and Jenny Graznak of the Division of Water Resources ("Division"), Winston-Salem Regional Office conducted a Compliance Evaluation Inspection of the above referenced wastewater treatment system. Matthew Smith, Operator in Responsible Charge (ORC), was present for the inspection. This type of inspection consists of two basic parts: an on-site inspection of the facility and a review of facility files and self-monitoring data. An inspection summary follows and an inspection report is attached for your records. Site Review 1. Permit The current permit became effective on July 1, 2016 and expires on May 31, 2021. A copy of the current permit was available for review. Permitted components include a septic tank, sand filter, and ultraviolet disinfection. 2. Facility Site Review The facility was as described in the permit. The sand filter is dosed by a siphon mechanism; no alarms are present. Although the facility is not located near the main school building or any other surrounding buildings, access to the sand bed is not restricted to the general public. 3. Operation and Maintenance The operator or a properly designated backup visits the site as required. Visitation logs were current and available during the inspection. Mr. Smith said that school maintenance staff turned off the UV alarm because it kept going off after hours. However, lights on the control panel indicated that all bulbs were operational and the ORC said the bulbs are cleaned regularly. In case of a failure of the UV system, Mr. Smith said he could add chlorine tablets to the old chlorine contact chamber. - _ `Y"Noth[ng Compares7—__ State of North Carolina I Environmental Quality 450 W Hanes Mill Road, Suite 300, Winston-Salem, North Carolina 27105 Phone 336-776-98001 FAX. 336-776-9797 !i 4. Flow Measurement 1 Flow is estimated using data from the potable water meter. Given the low permitted discharge rate of 3,000 gpd monthly average, care should be taken to ensure that the reported value is within 10% of the "true" value. 5. Effluent/Receiving Waters The effluent is discharged into Cane Creek in the Cape Fear River Basin. Mr. Smith said that the outfall was recently located but he himself did not know the exact location. An effluent sample drawn from a valve after UV disinfection appeared clear. Documentation Review 6. Records/Reports Discharge Monitoring Reports (DMRs) and lab data are maintained according to the permit. DMRs include all permit parameters. Copies of DMRs, operator visitation logs, lab reports and Chain -of - Custody forms were available for review during the inspection. 7. Self -Monitoring Program A review of DMRs from April, 2015 through September, 2017 showed the following violations, which have been addressed through previous correspondence from this office: A comparison of submitted DMR data and field records showed no errors or concerns. 8. Laboratory All parameters are analyzed by Research & Analytical Laboratories, Certification #34. ORC measures pH and temperature at the facility. All other samples are collected from a valve following disinfection. Temperature is measured using the digital thermometer on the Dissolved Oxygen meter. The thermometer was last calibrated on October 12, 2017. pH meter pre -run calibration and sampling procedures appeared acceptable. 9. Sludge Handling Disposal Mr. Smith said that sludge is removed from the septic tank as needed. Records showed that sludge was last removed by Jenkins Waste Management on 2/20, 4/28, 8/10 and 11/20 of this year. ACTIQN-' Coliform, Fecal MF, MFC 08/31/2017 Daily Maximum Exceeded Proceed to NOD Broth, 44 5 C Coliform, Fecal MF, MFC 08/31/2017 Monthly Geometric Mean Proceed to NOD Broth, 44.5 C Exceeded Coliform, Fecal MF, MFC 10/06/2015 Daily Maximum Exceeded Proceed to NOV Broth, 44 5 C Coliform, Fecal MF, MFC 10/31/2015 Monthly Geometric Mean Proceed to NOV Broth, 44 5 C Exceeded A comparison of submitted DMR data and field records showed no errors or concerns. 8. Laboratory All parameters are analyzed by Research & Analytical Laboratories, Certification #34. ORC measures pH and temperature at the facility. All other samples are collected from a valve following disinfection. Temperature is measured using the digital thermometer on the Dissolved Oxygen meter. The thermometer was last calibrated on October 12, 2017. pH meter pre -run calibration and sampling procedures appeared acceptable. 9. Sludge Handling Disposal Mr. Smith said that sludge is removed from the septic tank as needed. Records showed that sludge was last removed by Jenkins Waste Management on 2/20, 4/28, 8/10 and 11/20 of this year. If you should have any questions, please do not hesitate to contact Paul DiMatteo at (336) 776-9691 or our office at (336) 776-9800. Sincerely, '%herri V. Knight, P.E., Regional Supervisor Water Quality Regional Operations Section Winston-Salem Regional Office Division of Water Resources, NCDEQ Enclosures —Inspection Report and Summary CC: Matthew Smith — by email WQS Winston-Salem Regional Office - Enforcement File NPDES Compliance/Enforcement Unit - Enforcement File Central Files 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 U 2 15 1 3 I NCO04512B I11 121 17/11/30 I17 18 I q( 19 Lc 1 20I I 211 1 1 1 I I I I I III I 1 I I I I I I I I I I I I I I I I I I I I III I I I I 1166 I Inspection Work Days Facility Self-Monitoring Evaluation Rating B1 QA — -Reseryed 72 N_73LJJ74 75 1 1 1 1 1 80 67 70 LJ 71 ty Section B: Facility Data 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) 01 30PM 17/11/30 16/07/01 Sylvan Elementary School 7718 Sylvan Rd Exit Time/Date Permit Expiration Date Snow Camp NC 27349 02 45PM 17/11/30 21/04/30 Name(s) of Onsite Representative(s)/Tittes(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 Jay Fuller,1732 Vaughn Rd Burlington NC 27217//336-570-648213365706485 No Section C Areas Evaluated During Inspection (Check only those areas evaluated) Permit E Flow Measurement Operations & Maintenance Records/Reports Self-Monitoring Program N 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 Jennifer F Graznak WSRO WQ//336-771-5000/ Paul DiMatteo WSRO WQ//336-776-9691/ Signature ofManagement Q A Reviewer Agency/Office/Phone and Fax Numbers Date , EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete Page# N'DES yr/mo/day 31 NC0045128 I11 12 17/11/30 " Site Review 1 Permit Inspection Type 18 ICI (Cont ) Section D Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) The current permit became effective on July 1, 2016 and expires on May 31, 2021. A copy of the current permit was available for review. Permitted components include a septic tank, sand filter, and ultraviolet disinfection. 2. Facility Site Review The facil ty was as described in the permit. The sand filter is dosed by a siphon mechanism; no alarms are present. Although the facility is not located near the main school building or any other surrounding buildings, access to the sand bed is not restricted to the general public. 3. Operation and Maintenance The operator or a properly designated backup visits the site as required. Visitation logs were current and available during the inspection. Mr Smith said that school maintenance staff turned off the UV alarm because it kept going off after hours. However, lights on the control panel indicated that all bulbs were operational and the ORC said the bulbs are cleaned regularly In case of a failure of the UV system, Mr Smith said he could add chlorine tablets to the old chlorine contact chamber. 4. Flour Measurement Flow is estimated using data from the potable water meter. Care should be taken to ensure that the reported value is within 10% of the "true" value. 5. Effluent/Receiving Waters The effluent is discharged into Cane Creek in the Cape Fear River Basin. Mr Smith said that the outfall was recently located but he himself did not know the exact location. An effluent sample drawn from a valve after UV disinfection appeared clear. Documentation Review 6. Records/Reports Discharge Monitoring Reports (DMRs) and lab data are maintained according to the permit. DMRs include all permit parameters. Copies of DMRs, operator visitation logs, lab reports and Chain -of -Custody forms were available for review during the inspection. 7. Self -Monitoring Program A review of DMRs from April, 2015 through September, 2017 showed the following violations, which have been addressed through previous correspondence from this office: PARAMETER VIOLATIONDATE VIOLATION TYPE VIOLATION ACTION Coliform, Fecal MF, MFC Broth, 44 5 C 08/31/2017 Daily Maximum Exceeded Proceed to NOD Coliform, Fecal MF, MFC Broth, 44.5 C 08/31/2017 Monthly Geometric Mean Exceeded Proceed to NOD Coliform, Fecal MF, MFC Broth, 44 5 C 10/06/2015 Daily Maximum Exceeded Proceed to NOV Coliform, Fecal MF, MFC Broth, 44.5 C 10/31/2015 Monthly Geometric Mean Exceeded Proceed to NOV A comparison of submitted DMR data and field records showed no errors or concerns. 8 Laboratory All parameters are analyzed by Research & Analytical Laboratories, Certification #34. ORC measures Page# permit- NCO045128 Owner • Facility, Sylvan Elementary School Inspection Date. 11/30/2017 Inspection Type, Compliance Evaluation pH and temperature at the facility. All other samples are collected from a valve following disinfection Temperature is measured using the digital thermometer on the Dissolved Oxygen meter The thermometer was last calibrated on October 12, 2017 pH meter pre -run calibration and sampling procedures appeared acceptable 9 Sludge Handling Disposal Mr. Smith said that sludge is removed from the septic tank as needed. Records showed that sludge was last removed by Jenkins Waste Management on 2/20, 4/28, 8/10 and 11/20 of this year. Page# Permit- NCO045128 Inspection Date: 11/30/2017 Operations & Maintenance Is the plant generally clean with acceptable housekeeping? Owner - Facility. Sylvan Elementary School Inspection Type: Compliance Evaluation Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge Judge, and other that are applicable? Comment. Permit (If the present permit expires in 6 months or 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? Yes No NA NE M ❑ ❑ ❑ ❑ ❑ ■ ❑ Yes No NA NE ❑ ❑ ■ ❑ M ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ M ❑ ❑ ❑ i Comment: There is no access restriction to the sand bed. but It did appear to be located away from the school or other areas where people would gather. Record Keeping Ars records kept and maintained as required by the permit? Is all required information readily available, complete and current? A -e 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 CDCs 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 fiow) 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 ❑ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ M ❑ ❑ ❑ M ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ M ❑ M ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Page# 4 Permit NCO045128 Owner • Facility: Sylvan Elementary School Inspection Date. 11/30/2017 Inspection Type Compliance Evaluation Record Keeping Yes No NA NE Facility has copy of previous year's Annual Report on file for review? ❑ ❑ 0 ❑ Comment: Effluent Pipe Yes No NA NE 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? ❑ ❑ 0 ❑ Comment: ORC did not know the location of the effluent pipe, though he said that someone had located it recently A sample obtained after UV disinfection appeared clear. Yes No NA NE (If pumps are used) Is an audible and visual alarm operational? ❑ ❑ Flow Measurement - Influent Yes No NA NE # Is flow meter used for reporting? ❑ ❑ M ❑ Is flow meter calibrated annually? ❑ ❑ 0 ❑ Is the flow meter operational? ❑ ❑ M ❑ (If units are separated) Does the chart recorder match the flow meter? ❑ ❑ 0 ❑ Comment: Flow is estimated using the school's water meter. Beqinninq this school year flow has been reported on the DMR to the nearest 1000 gallons (previously reported to the nearest 100 gallons). Note that the reported flow measurement should be within 10% of the true value Since the flow limit at this facility is 3000 god with a typical reported flow around 2000 gpd, this gives an acceptable range of —+/- 200 gpd, which is to small to be resolved if flow is rounded to the nearest 1000 gallons. Septic Tank Yes No NA NE (If pumps are used) Is an audible and visual alarm operational? ❑ ❑ M ❑ Is septic tank pumped on a schedule? 0 ❑ ❑ ❑ Are pumps or syphons operating properly? M ❑ ❑ ❑ Are high and low water alarms operating properly? ❑ ❑ M ❑ Comment: There are no alarms on the septic tanks Dosing operates by a siphon mechanism. Dosing ❑ ❑ system appeared to be operating properly during the inspection. Sand Filters (Low rate) Yes No NA NE (If pumps are used) Is an audible and visible alarm Present and operational? ❑ ❑ ❑ Is the distribution box level and watertight? ❑ ❑ M ❑ Is sand filter free of ponding? 0 ❑ ❑ ❑ Is the sand filter effluent re -circulated at a valid ratio? M ❑ ❑ ❑ # Is the sand filter surface free of algae or excessive vegetation? M ❑ ❑ ❑ Page# 6 Permit NCO045128 Owner - Facility. Sylvan Elementary School Inspection Date: 11/30/2017 Inspection Type Compliance Evaluation Sana Filters (Low rate) Yes No NA NE # Is the sand filter effluent re -circulated at a valid ratio? (Approximately 3 to 1) ❑ 0 1:11 ❑ Comment. Sand filter is single pass. As noted previously, there is no alarm for this system. Disinfection - UV Yes No NA NE Are extra UV bulbs available on site? 0 ❑ ❑ ❑ Are UV bulbs clean? 0 ❑ ❑ ❑ Is UV intensity adequate? ❑ ❑ ❑ N Is transmittance at or above designed level? ❑ ❑ ❑ N Is there a backup system on site? 0 ❑ ❑ ❑ Is effluent clear and free of solids? 0 ❑ ❑ ❑ Comment- 6 tubes in use/6 total ORC has chlorine tablets available as a backup. Laboratory Yes No NA NE Are field parameters performed by certified personnel or laboratory? � ❑ ❑ ❑ Are all other parameters(excluding field parameters) performed by a certified lab? 0 ❑ ❑ ❑ # Is the facility using a contract lab? M ❑ ❑ ❑ # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees ❑ ❑ ❑ N Celsius)? ❑ ❑ ❑ Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees? ❑ ❑ ❑ M Incubator (BOD) set to 20 0 degrees Celsius +/-1 0 degrees? ❑ ❑ ❑ M Comment: Effluent Sampling Yes No NA NE Is composite sampling flow proportional? ❑ ❑ 0 ❑ Is sample collected below all treatment units? N ❑ ❑ ❑ Is proper volume collected? 0 ❑ ❑ ❑ Is the tubing clean? ❑ ❑ 0 ❑ # 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 0 ❑ ❑ ❑ representative)? Comment Sample is collected from a valve after UV disinfection. Page# 6