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Home My WebLink AboutNC0041696_Inspection_20180507DocuSign Envelope ID: 319B147E-BC3E-4BA6-8723-FO3D46F4COBA WaterResou ces EHWROMMEWAl QUALITY May 08, 2018 Greg Padgett Town of Valdese PO Box 339 Valdese, NC 28690 SUBJECT: Compliance Inspection Report Lake Rhodhiss WWTP NPDES WW Permit No. NCO041696 Burke County Dear Permittee: ROY COOPER Gorerna, NUCHAEL S. REGAN Sacre�� LT -NDA CFULPEPPER lhJ err m Direclar The North Carolina Division of Water Resources conducted an inspection of the Lake Rhodhiss WWTP on 4/17/2018. This inspection was conducted to verify that the facility is operating in compliance with the conditions and limitations specified in NPDES WW Permit No. NC0041696. The findings and comments noted during this inspection are provided in the enclosed copy of the inspection report entitled "Compliance Inspection Report". There were no significant issues or findings noted during the inspection and therefore, a response to this inspection report is not required. If you should have any questions, please do not hesitate to contact me at 828-296-4500 or via email at linda.wiggs@ncdenr.gov. Sincerely, E-4 DocuSigned by: tiwol,� wl, l y 6C38CDE2B5CF449... Linda Wiggs Water Quality Regional Operations Section Asheville Regional Office Division of Water Resources, NCDEQ ATTACHMENTS Cc: WQS Asheville Regional Office Server Laserfiche State of North Carolina I Environmental Quality I Water Resources 2090 U.S. 70 Highway, Swannanoa, NC 28778 828-296-4500 DocuSign Envelope ID: 319B147E-BC3E-4BA6-8723-FO3D46F4COBA 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 NCO041696 111 12 I 18/04/17 I17 18 I S J 19 LG] 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 70 I I 71 I I 72 I r l 73 I I 174 751 1 1 1 1 1 1 180 u I� 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) 09:30AM 18/04/17 18/02/01 Lake Rhodhiss WWTP 2100 Lake Rhodhiss Dr Exit Time/Date Permit Expiration Date Valdese NC 28690 02:OOPM 18/04/17 21/02/28 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Greg A Padgett,PO Box 339 Valdese NC 28690/Director/828-879-2131/ Yes Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit 0 Flow Measurement Operations & Maintenance Records/Reports Self -Monitoring Program 0 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 Linda S WiggsEWARO WQ//828-296-4500 Ext.4653/ Beverly Price Division of Water Quality//828-296-4500 Signature of Management Q A Reviewer DocuSigned byAgency/Office/Phone and Fax Numbers Date 5/8/2018 EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page# DocuSign Envelope ID: 319B147E-BC3E-4BA6-8723-FO3D46F4COBA NPDES yr/mo/day Inspection Type NCO041696 111 121 18/04/17 1 17 18 JCJ Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) The inspector, Linda Wiggs, met onsite with Gregg Padgett, Chris Bortnick, Andrew Evans and Bev Price (DWR). This inspection was performed in conjunction with a residuals inspection (WQ0001990). Construction is underway for the replacement of the grit system. All items in the previous inspection report have been addressed. WQ0001990 report will be sent separately. Page# DocuSign Envelope ID: 319B147E-BC3E-4BA6-8723-FO3D46F4COBA Permit: NCO041696 Owner - Facility: Lake Rhodhiss WWTP Inspection Date: 04/17/2018 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: TRC, MLSS, MLVSS, Settleability, Sludge Blanket. Permit Yes No NA NE (If the present permit expires in 6 months or less). Has the permittee submitted a new ❑ ❑ ❑ ❑ 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: Mercury Minimization Plan will be worked on for August 2018 due date. 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? ❑ ❑ ❑ Page# 3 DocuSign Envelope ID: 319B147E-BC3E-4BA6-8723-FO3D46F4COBA Permit: NCO041696 Owner - Facility: Lake Rhodhiss WWTP Inspection Date: 04/17/2018 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: Solids Handling Equipment Yes No NA NE Is the equipment operational? 0 ❑ ❑ ❑ Is the chemical feed equipment operational? 0 ❑ ❑ ❑ Is storage adequate? ❑ ❑ 0 ❑ Is the site free of high level of solids in filtrate from filter presses or vacuum filters? ❑ ❑ 0 ❑ Is the site free of sludge buildup on belts and/or rollers of filter press? ❑ ❑ 0 ❑ Is the site free of excessive moisture in belt filter press sludge cake? ❑ ❑ 0 ❑ The facility has an approved sludge management plan? 0 ❑ ❑ ❑ Comment: 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? 0 ❑ ❑ ❑ # Is the odor acceptable? 0 ❑ ❑ ❑ # Is tankage available for properly waste sludge? 0 ❑ ❑ ❑ Comment: ORC stated this component is operated as a thickener with diffusers. Pumps -RAS -WAS Yes No NA NE Are pumps in place? 0 ❑ ❑ ❑ Are pumps operational? 0 ❑ ❑ ❑ Are there adequate spare parts and supplies on site? ❑ 0 ❑ ❑ Comment: 4 pumps, WAS sent to thickener during the inspection. Bar Screens Yes No NA NE Type of bar screen a.Manual b.Mechanical Are the bars adequately screening debris? ❑ ❑ 0 ❑ Is the screen free of excessive debris? ❑ ❑ 0 ❑ Page# 4 DocuSign Envelope ID: 319B147E-BC3E-4BA6-8723-FO3D46F4COBA Permit: NCO041696 Owner - Facility: Lake Rhodhiss WWTP Inspection Date: 04/17/2018 Inspection Type: Compliance Evaluation Bar Screens Is disposal of screening in compliance? Is the unit in good condition? Yes No NA NE ■ ❑ ❑ ❑ ❑ ❑ ■ ❑ Comment: Bar screen is being bypassed during construction activity for new grit system and new screen installation. Grit Removal Type of grit removal Yes No NA NE a.Manual ❑ • ❑ b.Mechanical 0 • ❑ ❑ Is the grit free of excessive organic matter? ❑ ❑ 0 ❑ Is the grit free of excessive odor? ❑ ❑ 0 ❑ # Is disposal of grit in compliance? ❑ ❑ 0 ❑ Comment: A new grit system is being installed. Construction is on task for JuIV 2018 completion. Primary 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 sludge blanket level acceptable? Is the sludge blanket level acceptable? (Approximately'/ of the sidewall depth) Comment: Maintenance/repairs noted in 2015 inspection have been completed. #2 primary was offline at the time of the inspection. 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? Yes No NA NE ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ Yes No NA NE Surface • ❑ ❑ ❑ • ❑ ❑ ❑ ❑ ❑ ■ ❑ Page# 5 DocuSign Envelope ID: 319B147E-BC3E-4BA6-8723-FO3D46F4COBA Permit: NCO041696 Inspection Date: 04/17/2018 Owner - Facility: Lake Rhodhiss WWTP Inspection Type: Compliance Evaluation Is the clarifier free of black and odorous wastewater? 0 ❑ Aeration Basins Yes No NA NE Is the foam the proper color for the treatment process? 0 ❑ ❑ ❑ Does the foam cover less than 25% of the basin's surface? 0 ❑ ❑ ❑ Is the DO level acceptable? ❑ ❑ ❑ 0 Is the DO level acceptable?(1.0 to 3.0 mg/1) ❑ ❑ ❑ 0 Comment: Items noted in 2015 inspection have been completed. Two aerators were on at the time of the insDection. Secondary Clarifier Yes No NA NE Is the clarifier free of black and odorous wastewater? 0 ❑ ❑ ❑ Is the site free of excessive buildup of solids in center well of circular clarifier? 0 ❑ ❑ ❑ Are weirs level? 0 ❑ ❑ ❑ Is the site free of weir blockage? 0 ❑ ❑ ❑ Is the site free of evidence of short-circuiting? 0 ❑ ❑ ❑ Is scum removal adequate? 0 ❑ ❑ ❑ Is the site free of excessive floating sludge? 0 ❑ ❑ ❑ Is the drive unit operational? 0 ❑ ❑ ❑ Is the return rate acceptable (low turbulence)? ❑ ❑ ❑ 0 Is the overflow clear of excessive solids/pin floc? 0 ❑ ❑ ❑ Is the sludge blanket level acceptable? (Approximately'/4 of the sidewall depth) ❑ ❑ 0 ❑ Comment: Blanket in both clarifiers was —7'. The facility operates with high blankets. Blankets are checked regularly for process control. 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: Effluent Sampling Is composite sampling flow proportional? Is sample collected below all treatment units? Is proper volume collected? Is the tubing clean? Yes No NA NE ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ■ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Page# 6 DocuSign Envelope ID: 319B147E-BC3E-4BA6-8723-FO3D46F4COBA Permit: NCO041696 Owner - Facility: Lake Rhodhiss WWTP Inspection Date: 04/17/2018 Inspection Type: Compliance Evaluation Effluent Sampling Yes No NA NE # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees 0 ❑ ❑ ❑ Celsius)? Is the facility sampling performed as required by the permit (frequency, sampling type 0 ❑ ❑ ❑ representative)? Comment: 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# 7