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Home My WebLink AboutNC0065749_Compliance Evaluation Inspection_20180507s Water Resources Environmental Quality 7 May 2018 Ms. Jacqueline A. Jarrell, P.E. Operations Chief Environmental Management Division Charlotte Water 5100 Brookshire Blvd. Charlotte, North Carolina 28216 Subject: Compliance Evaluation Inspection Ashe Plantation WWTP NPDES Permit No. NCO065749 Mecklenburg County Dear Ms. Jarrell: ROY COOPER Governor MICHAEL S. REGAN Secretary LINDA CULPEPPER Interim Director Enclosed is a copy of the Compliance Evaluation Inspection Report for the inspection conducted at the subject facility on April 19, 2018, by Mr. Wes Bell of this Office. Please inform the facility's Operator -in -Responsible Charge (ORC) of our findings by forwarding a copy of the enclosed report. Should you have any questions concerning this report, please do not hesitate to contact Mr. Bell at (704) 235-2192, or via email at wes.bell(cr�,ncdenr.gov. Sincerely, DocuSigned by: A14CC681 AF27425... W. Corey Basinger, Regional Supervisor Water Quality Regional Operations Section Division of Water Resources, NCDEQ Enclosure: Inspection Report cc: Rusty Rozzelle, MCWQP (via email) State of North Carolina I Environmental Quality) Water Resources I Water Quality Regional Operations Mooresville Regional Office 1610 East Center Avenue, Suite 310 1 Mooresville, North Carolina 28115 704-663-1699 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 I 2 15 I 3 I NCO065749 111 12 I 18/04/19 I17 18 I S i 19 LG] i 201 I 211111 1 1 1 1 1 111 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 111 1 1 1 1 1 166 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA ----------------------Reserved------------------- 67 2.0 70 Id I 71 [ I 72 I I 73 �74 751 1 1 1 1 1 1 180 I—I I� 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 oermit Number) 09:15AM 18/04/19 17/06/01 Ashe Plantation WWTP Mint Hill Est-Ashe Plant Exit Time/Date Permit Expiration Date Charlotte NC 28212 11:40AM 18/04/19 21/04/30 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data Jeremy David Nance/ORC/704-634-3389/ Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Jacqueline A Jarrell,5100 Brookshire Blvd Charlotte NC 282163371/Operations Chief/704-336-5433/ Yes 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 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 cuSigned by: Wes Bell MRO WQ//704-663-1699 Ext.2192/ 5/7/2018 e E�: 96D90=43T Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date W. Corey Basinger MRO WQ//704-235-2194/ EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. DocuSigned by: Page# A14CC681 AF27425... 5/7/2018 NPDES yr/mo/day Inspection Type NC0065749 111 121 18/04/19 1 17 18 ICI Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) On-site Representatives: The following Charlotte Water personnel were in attendance during the inspection: Ms. Jacqueline Jarrell/Operations Chief, Mr. Jeremy Nance/ORC, Mr. Joseph Lockler/Operations Manager, Mr. Shannon Sypolt/Water Quality Program Administrator, and Mr. Doug Wise/Water Quality Program Specialist. Page# Permit: NCO065749 Owner - Facility: Ashe Plantation WWTP Inspection Date: 04/19/2018 Inspection Type: Compliance Evaluation Yes No NA NE Are records kept and maintained as required by the permit? 0 ❑ Permit Yes No NA NE (If the present permit expires in 6 months or less). Has the permittee submitted a new ❑ ❑ 0 ❑ application? ❑ ❑ ❑ 0 Is the facility as described in the permit? 0 ❑ ❑ ❑ # Are there any special conditions for the permit? ❑ ❑ 0 ❑ Is access to the plant site restricted to the general public? 0 ❑ ❑ ❑ Is the inspector granted access to all areas for inspection? 0 ❑ ❑ ❑ Comment: Charlotte Water submitted an Authorization to Construct (AtC) aDDlication to the Division in April 2018 for the construction of a new WWTP (replace the existing WWTP). The new WWTP will include the following: influent pump station, bar screen, equalization basins, sludge holding tank, pre -aeration tanks, extended aeration basins, blower/motor units, secondary clarifiers (circular), tertiary filtration (disc filters), and UV disinfection. The AtC is currently under review. The last compliance evaluation inspection was performed at the facility on 5/19/16 by the Mecklenburg County Water Quality Program staff. Record Keeping Yes No NA NE Are records kept and maintained as required by the permit? 0 ❑ ❑ ❑ Is all required information readily available, complete and current? 0 ❑ ❑ ❑ Are all records maintained for 3 years (lab. reg. required 5 years)? ❑ ❑ ❑ 0 Are analytical results consistent with data reported on DMRs? 0 ❑ ❑ ❑ Is the chain -of -custody complete? 0 ❑ ❑ ❑ 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 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? ❑ ❑ ❑ Facility has copy of previous year's Annual Report on file for review? ❑ ❑ ❑ Page# 3 Permit: NCO065749 Inspection Date: 04/19/2018 Record Keeping Owner - Facility: Ashe Plantation WWTP Inspection Type: Compliance Evaluation Yes No NA NE Comment: The records reviewed durina the insDection were oraanized and well maintained. Discharae Monitoring Reports (eDMRs) were reviewed for the period March 2017 through February 2018. All monitoring frequencies were correct. Daily maximum (2 -total) and monthly average effluent ammonia violations were reported in January 2018. The Division will separately address these limit violations. The WWTP is typically visited by multiple operators (including the ORC and Backup ORC) during the day. Staff must ensure that the initial arrival time is documented on future eDMRs. Laboratory Yes No NA NE Are field parameters performed by certified personnel or laboratory? 0 ❑ ❑ ❑ Are all other parameters(excluding field parameters) performed by a certified lab? 0 ❑ ❑ ❑ # 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)? 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: Influent and effluent analyses (including field) are performed under the Charlotte Water Environmental Laboratory Services Certification #192. 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: The subject permit requires composite and grab effluent samples. The sampler temperature was approximately two degrees Celsius and collecting 200 ml. aliquots at the time of the inspection. The facilitV staff perform and document multiple aliquot verifications throughout each month. Upstream / Downstream Sampling Yes No NA NE Is the facility sampling performed as required by the permit (frequency, sampling type, and 0 ❑ ❑ ❑ sampling location)? Comment: Page# 4 Permit: NCO065749 Owner - Facility: Ashe Plantation WWTP Inspection Date: 04/19/2018 Inspection Type: Compliance Evaluation 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 ❑ ❑ ❑ Solids, pH, DO, Sludge Judge, and other that are applicable? Comment: The wastewater treatment facilitv appeared to be Drooerly operated and well maintained The ORC and staff incorporate a comprehensive process control program with all measurements being properly documented and maintained on-site. The facility is equipped with a telemetry type (dialer) alarm system to notify the wastewater staff of specific alarm conditions at the treatment facility. Charlotte Water has performed repairs to several areas on the WWTP's metal structure due to significant rust and deterioration. The existing WWTP will be replaced with a new treatment facility as previously discussed in the Permit Section. Pump Station - Influent Yes No NA NE Is the pump wet well free of bypass lines or structures? 0 ❑ ❑ ❑ Is the wet well free of excessive grease? 0 ❑ ❑ ❑ Are all pumps present? 0 ❑ ❑ ❑ Are all pumps operable? 0 ❑ ❑ ❑ Are float controls operable? 0 ❑ ❑ ❑ Is SCADA telemetry available and operational? 0 ❑ ❑ ❑ Is audible and visual alarm available and operational? 0 ❑ ❑ ❑ Comment: Equalization Basins Yes No NA NE Is the basin aerated? 0 ❑ ❑ ❑ Is the basin free of bypass lines or structures to the natural environment? 0 ❑ ❑ ❑ Is the basin free of excessive grease? 0 ❑ ❑ ❑ Are all pumps present? 0 ❑ ❑ ❑ Are all pumps operable? 0 ❑ ❑ ❑ Are float controls operable? 0 ❑ ❑ ❑ Are audible and visual alarms operable? 0 ❑ ❑ ❑ # Is basin size/volume adequate? 0 ❑ ❑ ❑ Comment: Bar Screens Yes No NA NE Type of bar screen a.Manual Page# 5 Permit: NCO065749 Owner - Facility: Ashe Plantation WWTP ❑ ■ ❑ Inspection Date: 04/19/2018 Inspection Type: Compliance Evaluation ❑ ❑ ■ Bar Screens Yes No NA NE b.Mechanical ❑ ❑ • ❑ Are the bars adequately screening debris? 0 ❑ ❑ ❑ Is the screen free of excessive debris? 0 ❑ ❑ ❑ Is disposal of screening in compliance? S ❑ ❑ ❑ Is the unit in good condition? 0 ❑ ❑ ❑ Comment: Screenings are transported and placed into the Union County/Crooked Creek WWTP ❑ ■ ❑ dumpster. The screenings/contents from this dumpster are disposed at a permitted landfill ❑ by a contracted company. 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) Ext. Air Diffused ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ■ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ Comment: Aqueous lime is added to maintain appropriate alkalinity/pH levels. Insulation has been installed around the aeration basin structure to minimize the impacts (biological) attributed to winter weather. 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 ■ ❑ ❑ ❑ ❑ ❑ ■ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ■ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ Page# 6 Permit: NC0065749 Owner - Facility: Ashe Plantation WWTP Inspection Date: 04/19/2018 Inspection Type: Compliance Evaluation Secondary Clarifier Yes No NA NE Comment: Filtration (High Rate Tertiary) Yes No NA NE Type of operation: Down flow ❑ ❑ Is the filter media present? 0 ❑ ❑ ❑ Is the filter surface free of clogging? ❑ ❑ ❑ Is the filter free of growth? ❑ ❑ ❑ Is the air scour operational? ❑ ❑ ❑ Is the scouring acceptable? ❑ ❑ ❑ Is the clear well free of excessive solids and filter media? ❑ ❑ ❑ Comment: Flow Measurement - Effluent Yes No NA NE # Is flow meter used for reporting? 0 ❑ ❑ ❑ Is flow meter calibrated annually? 0 ❑ ❑ ❑ Is the flow meter operational? 0 ❑ ❑ ❑ (If units are separated) Does the chart recorder match the flow meter? ❑ ❑ 0 ❑ Comment: The flow meter is calibrated twice per year and was last calibrated on 3/13/18 by CITI, LLC. Disinfection - UV Are extra UV bulbs available on site? Are UV bulbs clean? Is UV intensity adequate? Is transmittance at or above designed level? Is there a backup system on site? Is effluent clear and free of solids? Comment: 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? Yes No NA NE ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ Yes No NA NE ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ■ ❑ Page# 7 Permit: NC0065749 Inspection Date: 04/19/2018 Owner - Facility: Ashe Plantation WWTP Inspection Type: Compliance Evaluation Effluent Pipe Yes No NA NE Comment: The effluent appeared clear with no floatable solids or foam. The receiving stream did not appear to be negatively impacted. Aerobic Digester Yes No NA NE Is the capacity adequate? 0 ❑ ❑ ❑ Is the mixing adequate? 0 ❑ ❑ ❑ Is the site free of excessive foaming in the tank? M ❑ ❑ ❑ # Is the odor acceptable? 0 ❑ ❑ ❑ # Is tankage available for properly waste sludge? 0 ❑ ❑ ❑ Comment: Wastewater solids are removed and transported by a contracted company (Stevens Septic Service) to the Charlotte Water/McAlpine Creek WWTP for further treatment/disDosal. Page# 8