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Home My WebLink AboutNC0021491_NOV2017LV0541_20170817It Water Resources ENVIRONMENTAL QUALITY August 11, 2017 CERTIFIED MAIL # 70131710 00021865 6945 RETURN RECEIPT REQUESTED Mr. Marcus Abernethy, Town Manager Town of Mocksville 171 S Clement St. Mocksville, NC 27028 SUBJECT: Notice of Violation & Intent to Enforce Case Number: NOV-2017-LV-0541 Dutchman Creek WWTP Permit No. NCO021491 Davie County Dear Mr. Abernethy: ROY COOPER Governor MICHAEL S. REGAN Secretary S. JAY ZIMMERMAN Da ecto, RECEIVED/NCDSQ/DWR AUG 212017 Water Quality Perrnating section The North Carolina Division of Water Resources conducted an announced routine compliance inspection of the Dutchman Creek Wastewater Treatment Plant on July 25, 2017. A separate in - office file review of the self-monitoring reports was also conducted for the reporting period of January 2017 through June 2017. This inspection was conducted to verify that the facility is operating in compliance with the conditions and limitations specified in Permit No. NC0021491. A summary of the findings and comments noted during the inspection are provided in the enclosed copy of the inspection report. The inspection was conducted by Patrick Mitchell from the Division of Water Resources Winston- Salem Regional Office. The following violations were noted: 1. The discharge monitoring reports (DMR) for the months of April, May and June reported permit limit violations for BOD, for both the weekly average limit and the monthly average limit (see data summary attached). It should be noted that BOD exceedance is a chronic repeat violation. Deficiencies related to inadequate solids handling have been noted multiple times for this facility. The Division has granted a number of "emergency transfers" of residuals solids for the subject facility. 2. Flow meters had not been calibrated within the past 12 months at the time of inspection as required in Permit Part II. D. 3. Flow meters were calibrated following the inspection on July 28, 2017. The subsequent service report received from the calibration contractor (ForTech, Inc.) suggested the following deficiencies: • The influent flow meter serving "Channel #2" was found to be inoperable, and could not be calibrated. 450 W. Hanes Mill Road, Suite 300, Winston-Salem, North Carolina 27105 Phone 336-776-98001 FAX. 336-776-97971 Customer Service 1-877-623-6748 Internet www.ncdenr.gov- www.ncwater.org t, regarding the violations. If no response is received in this Office within the 10 -day period, a civil penalty assessment may be prepared. Remedial actions should have already been taken to correct these problems and prevent further occurrences in the future. The Division of Water Resources may pursue enforcement action for this and any additional violations of State law. If the violations are of a continuing nature, not related to operation and/or maintenance problems, and you anticipate remedial construction activities, then you may wish to consider applying for a Special Order by Consent. Reminder: Pursuant to Permit Condition 6 in Section E, the Permittee is required to verbally notify the Regional Office as soon as possible, not to exceed 24 hours, from first knowledge of any non-compliance at the facility including limit violations, bypasses of, or failure of a treatment unit. A written report may be required within 5 days if directed by Division staff. Prior notice should be given for anticipated or potential problems due to planned maintenance activities, taking units off-line, etc. Your immediate attention is greatly appreciated. If you should have any questions regarding this Notice, please do not hesitate to contact Patrick Mitchell or me at the letterhead address or phone number, or by email at patrick.mitchellkncdenr. ov or sherri.knig_htnncdenr.gov. Sincerely, A Sherri V. Knight, PE — Regional Supervisor Water Quality Regional Operations Section Division of Water Resources, NCDEQ — WSRO enc.: Compliance Inspection Report cc: Tom Johnson, ORC — Electronic Copy. mocksville@envirolinkmc.com Heather Adams — Electronic Copy: hadamskenvirolinkinc.com Chuck Willis, PE — Electronic Copy- chuck@willisenrmeers corn Davie County Environmental Health DWR Central Office — NPDES Compliance/Enforcement Unit WSRO Enforcement File Page 3 of 4 United States Environmental Protection Agency Form Approved EPA Washington, D C 20460 - OMS 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 I 3 I NCO021491 111 12 17/07/25 17 18 Lj 19 L G j 20 LJ 211111 1 1 1 1 1 1 II 11 I I I I I I I I I I I I I I I I I I I I I II 11 l l l 166 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA --------Reserved 67 120 70 LJI 71 I 72 LJ 73 I 1 74 751 1 1 11 _U80 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) 09 45AM 17/07/25 14/11/01 Dutchman Creek WWTP 295 Garwood Rd Exit Time/Date Permit Expiration Date Mocksville NC 27028 11 15AM 17/07/25 19/06/30 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data Thomas David Johnson/ORC/252-419-2199/ Name, Address of Responsible Offiaal/Title/Phone and Fax Number Contacted Christine W Bralley,171 S Clement St Mocksville NC No 27026//336-753-6701/3367519187 Section C Areas Evaluated During Inspection (Check only those areas evaluated) Permit 0 Flow Measurement Operations & Maintenance Records/Reports Self -Monitoring Program N Sludge Handling Disposal 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 Patrick Mitchell Division of Water Quality//336-776-96981 ')vt7 Signature of Management Q A Reviewer Agency/Office/Phone and Fax NumbersDate 9 EPA Form 3560-3 (Rev 9-94) Previous edition are obsolete Page# Permit NC0021491 Inspection Date: 07/25/2017 Owner- Facility Dutchman Creek WWTP Inspection Type. Compliance Evaluation - Effluent discharge to receiving waters was observed, and found to be clear, relatively odorless, with no foam observed at time of Inspection Page# Permit. NCO021491 Owner -Facility: Dutchman CreekWWTP Yes No NA NE Is automatically activated standby power available? 0 ❑ Inspection Date- 07/25/2017 Inspection Type, Compliance Evaluation ❑ Is the generator tested by Interrupting primary power source? 0 ❑ Laboratory Yes No NA NE # Is the facility using a contract lab? 0 ❑ ❑ ❑ # Is proper temperature set for sample storage (kept at less than or equal to 6 0 degrees ❑ ❑ ❑ 0 Celsius)? 0 ❑ ❑ ❑ Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0 2 degrees? ❑ ❑ ❑ 0 Incubator (BOD) set to 20 0 degrees Celsius +/-1 0 degrees? ❑ ❑ ❑ 0 Comment Env 1 out of Greenville. NC Is contract lab Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? 0 ❑ ❑ ❑ Does the facility analyze process control parameters, for ex MLSS, MCRT, Settleable 0 ❑ ❑ ❑' Solids, pH, DO, Sludge Judge, and other that are applicable? Comment Reportedly MLSS = —4,000 and DO = 6 - 7 Standby Power Yes No NA NE Is automatically activated standby power available? 0 ❑ ❑ ❑ Is the generator tested by Interrupting primary power source? 0 ❑ ❑ ❑ Is the generator tested under load? M ❑ ❑ ❑ Was generator tested & operational during the Inspection? ❑ ❑ ❑ ❑ Do the generator(s) have adequate capacity to operate the entire wastewater site? 0 ❑ ❑ ❑ Is there an emergency agreement with a fuel vendor for extended run on back-up power? 0 ❑ ❑ ❑ Is the generator fuel level monitored? 0 ❑ ❑ ❑ Comment. Generator not tested during Inspection *CHECK NEXT VISIT* Pump Station - Influent Yes No NA NE Is the pump wet well free of bypass Imes or structures? 0 ❑ ❑ ❑ Is the wet well free of excessive grease? 0 ❑ ❑ ❑ Are all pumps present? M ❑ ❑ ❑ Are all pumps operable? M ❑ ❑ ❑ Are float controls operable? 0 ❑ ❑ ❑ Is SCADA telemetry available and operational? 0 ❑ ❑ ❑ Is audible and visual alarm available and operational? ❑ ❑ ❑ 0 Comment Pump station Is served by a dialer alarm *CHECK AUDIBLE & VISUAL ALARM NEXT VISIT* Page# 5 Permit. NCO021491 Owner -Facility Dutchman Creek WWTP Inspection Date- 07/25/2017 Inspection Type. Compliance Evaluation Flow Measurement - Influent Yes No NA NE Comment Three seoerate ultrasonic flow meters are used for the three flow channels or trains The flow meter serving Channel #2 needs replacing, and the flow meter serving Channel #3 is recommended for replacing also. SEE SUMMARY FOR MORE DETAILS 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/1) Yes No NA NE Ext Air Surface ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ E ❑ E ❑ ❑ ❑ E ❑ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ N Comment Reportedly MLSS & DO are routinely measured for process control *CHECK RESULTS NEXT VISIT* 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? Is the site free of excessive floating sludge? Is the drive unit operational? Is the return rate acceptable (low turbulence)? Is the overflow clear of excessive solids/pin floc? Is the sludge blanket level acceptable? (Approximately % of the sidewall depth) Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ M ❑ ❑ ❑ M ❑ ❑ ❑ ❑ M ❑ ❑ M ❑ ❑ ❑ ❑ M ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ M ❑ ❑ ❑ M ❑ ❑ ❑ Comment: Reoortedlv clarifier on Channel #1 accumulates solids more rapidly than Channels #2 or #3 Some floaing solids present In the clarifier on Channel #1, with very minor amounts of solids present adjacent to weirs with little in the overflow Sludge blanket was measured in clarifier on Channel #1, and found to be —3 5 ft at time of inspection. SEE SUMMARY FOR MORE DETAILS Aerobic Digester Yes No NA NE Page# 7 Permit NCO021491 Owner - Facility Dutchman Creek WW rP Inspection Date- 07/25/2017 Inspection Type: Compliance Evaluation Effluent Sampling Yes No NA NE Is composite sampling flow proportional'? ❑ 0 ❑ ❑ Is sample collected below all treatment units? M ❑ ❑ ❑ Is proper volume collected 0 ❑ ❑ ❑ Is the tubing clean? M ❑ ❑ ❑ # 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 Currently sampling on 30 min time Intervals with 150 mL per sample event. Effluent Pipe Yes No NA NE Is right of way to the outfall properly maintained? M ❑ ❑ ❑ Are the receiving water free of foam other than trace amounts and other debris? N ❑ ❑ ❑ If effluent (diffuser pipes are required) are they operating properly? ❑ ❑ N ❑ Comment Upstream / Downstream Sampling Yes No NA NE Is the facility sampling performed as required by the permit (frequency, sampling type, and ❑ ❑ M ❑ sampling location)? Comment- Wavied due to Yadkin -Pee Dee River Basin Association membership sampling_ Page# 9