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Home My WebLink AboutNC0082384_Compliance Evaluation Inspection_20200924ROY COOPER Governor MICHAEL S. REGAN Secretary S. DANIEL SMITH Director NORTH CAROLINA Environmental Quality September 24, 2020 Mark Delehant, Public Utilities Director Stokes County P.O. Box 20 Danbury, NC 27016 SUBJECT: Compliance Evaluation Inspection Stokes County WWTP NPDES Permit No. NCO082384 Stokes County Dear Mr. Delehant, On September 10, 2020, Gary Hudson, of this office, met with you to perform a Compliance Evaluation Inspection at the Stokes County Wastewater Treatment plant. This type of inspection consists of two basic parts: an in -office file review and an on -site inspection of the treatment facility. The attached EPA inspection form details the areas that were evaluated during this inspection. The inspection of the facility was satisfactory. If you have any questions regarding the inspection or this report, please contact Gary Hudson or me at (336) 776-9800 or by email at gary.hudson(a_ncdenr.gov or Ion. snider(a)_ncdenr.gov. Sincerely, D�ocu S�igTnedl�by: 145B49E225C94EA... Lon Snider Regional Supervisor Water Quality Regional Operations Division of Water Resources Attachments: EPA Water Compliance Inspection Report cc: Laserfiche No�rHC�.Apl oewrtmam m �o-o�me�i o�ai� North Carolina Department of Environmental Quality I Division of Water Resources Winston-Salem Regional Office [ 450 West Hanes Mill Road, Suite 300 I Winston-Salem, North Carolina 27105 336.776.9800 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 2 u 3 I NCO082384 111 121 20/09/10 I17 18 L� ] 19 I s I 201 211IIIII 111111III II III III1 I I IIIII IIIIIIIII II r6 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA ---------------------- Reserved ------------------- 67 I 72 I ni I 73 � I 74 79 I I I I I I I80 70 I I 71 I LL -1 I I LJ 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 Dermit Number) 10:OOAM 20/09/10 17/03/01 Danbury WWTP NC Hwy 89 Exit Time/Date Permit Expiration Date Danbury NC 27016 12:OOPM 20/09/10 22/02/28 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data Mark Duncan Del ehant/ORC/336-593-2415/ Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Craig Greer,PO Box 20 Danbury NC 27016/County Manager/336-593-2811/ No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit 0 Operations & Maintenar 0 Records/Reports Sludge Handling Dispo: Facility Site Review 0 Effluent/Receiving Wate 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 Gary Hudson DWR/Division of Water Qua Iity/336-776-9694/ Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date Docby: 9/24/2020 l FLT Sn.eruSigned 4 25C94EA. EPA Form 3560-3 (Rev-revious editions are obsolete. Page# NPDES yr/mo/day Inspection Type NCO082384 I11 12I 20/09/10 117 18 i c i Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) * The permit became effective on March 1, 2017 and expires on February 28, 2022. * The plant appeared to be well operated and maintained. * The effluent was clear on the day of the inspection. Page# Permit: NCO082384 Inspection Date: 09/10/2020 Operations & Maintenance Is the plant generally clean with acceptable housekeeping? Owner -Facility: DanburyWWTP 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? Comment: . Record Keeping Are records kept and maintained as required by the permit? Is all required information readily available, complete and current? Are 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 COCs 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 operatc 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 ■ ❑ ❑ ❑ ❑ ❑ ❑ Yes No NA NE ❑ ❑ ■ ❑ ■ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ Yes No NA NE ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ M ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ Page# 3 Permit: NCO082384 Inspection Date: 09/10/2020 Owner -Facility: DanburyWWTP Inspection Type: Compliance Evaluation Record Keeping Facility has copy of previous year's Annual Report on file for review? Comment: . Aerobic Digester Is the capacity adequate? Is the mixing adequate? Is the site free of excessive foaming in the tank? # Is the odor acceptable? # Is tankage available for properly waste sludge? Comment: . Type of bar screen a.Manual b.Mechanical Are the bars adequately screening debris? Is the screen free of excessive debris? Is disposal of screening in compliance? Is the unit in good condition? Comment: . 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) Comment: . Yes No NA NE ❑ ❑ ❑ ■ Yes No NA NE ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ Yes No NA NE ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ Yes No NA NE Ext. Air Diffused ■ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ Page# 4 Permit: NC0082384 Inspection Date: 09/10/2020 Owner -Facility: DanburyWWTP Inspection Type: Compliance Evaluation 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) Comment: . 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? Comment: . Yes No NA NE ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ Yes No NA NE ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ■ ❑ ■ ❑ ❑ ■ ❑ ❑ ❑ Yes No NA NE ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ Page# 5