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Home My WebLink AboutNC0032077_Inspection_20200916ROY COOPER Governor MICHAEL S. REGAN Secrrtary S. DANIEL SMITH Dirxtor NORTH CAROLINA Environmental Quality September 16, 2020 Charles M. Smithwick Contentnea Metropolitan Sewerage District PO Box 477 Grifton, NC 28530-0477 SUBJECT: Compliance Inspection Report Contentnea Sewerage District WWTP NPDES WW Permit No. NCO032077 Pitt County Dear Mr. Smithwick The North Carolina Division of Water Resources conducted an inspection of the Contentnea Sewerage District WWTP on 9/04/2020. This inspection was conducted to verify that the facility is operating in compliance with the conditions and limitations specified in NPDES WW Permit No. NC0032077. The findings and comments noted during this inspection are provided in the enclosed copy of the inspection report entitled "Compliance Inspection Report". If you should have any questions, please do not hesitate to contact Sarah Toppen with the Water Quality Regional Operations Section in the Washington Regional Office at 252-946-6481 or via email at Sarah.Toppen@ncdenr.gov. Sincerely, &-t(ah (J)PR'n Sarah Toppen, Environmental Specialist II Water Quality Regional Operations Section Washington Regional Office Division of Water Resources, NCDEQ ATTACHMENTS Cc: WQS Washington Regional Office - Enforcement File NPDES Compliance/Enforcement Unit - Enforcement File �� Nortt Caro ^ a DsGert^srt of E^v r. ^•erta 4— I D '5D'zfl:ate-'F.=s_-.•ass '+', V sst r;U^ Reg Dff;- I $4?'V ash rgU^ S: _'t V; �'i:_s �t_ N:,I� �ar_ 2'S5� tom' 225224E-5451 United States Environmental Protection Agency Form Approved. EPA Washington, D.C. 20460 OMB No. 2040-0057 Water Compliance Inspection Report Approval expires 8-31-98 Section A: National Data System Coding (i.e., PCS) Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type 1 E 2 15 I 3 I NCO032077 I11 121 20/09/04 I17 18 I C I 19 I s I 201 2111III1IIIIIIIIIIIIIIIIIIIIIIII11IIIIIIIIII r6 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA ------------ —------- Reserved ----- ------------ 67 701 I 71 ItyI 72 L n, � 731 I 174 79 I I I I I I I80 LJ LJ I I Section B: Facility Data Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include Entry Time/Date Permit Effective Date POTW name and NPDES permit Number) 09:10AM 20/09/04 14/12/01 Contentnea Sewerage District WWTP 900 Wiley Gaskins Rd Exit Time/Date permit Expiration Date Grifton NC 28530 10:40AM 20/09/04 19/11/30 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data /// Charles M. Smithwick/ORC/252-524-5584/ Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Charles M. Smithwick,PO Box 477 Grifton NC 285300477/District No Manager/252-524-5584/2525243491 Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit 0 Flow Measurement Operations & Maintenar Records/Reports Sludge Handling Dispo: E Facility Site Review Effluent/Receiving Wate Other Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) (See attachment summary) Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date Sarah AToppen DWR/WARO WQ/252-946-6481/ / h a Wn �$ Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. Page# NPDES yr/mo/day Inspection Type NCO032077 I11 1 20/09/04 17 18 1 C, Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) On September 4, 2020, Sarah Toppen and Victoria Herdt with NCDWR was on -site to conduct a compliance inspection. Chuck Smithwick, ORC was present for the facility. The facility was complaint the day of the inspection. Please review the entire inspection report for more details. Page# Permit: NCO032077 Inspection Date: 09/04/2020 Owner - Facility: Contentnea Sewerage District WWTP Inspection Type: Compliance Evaluation 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? Facility has copy of previous year's Annual Report on file for review? Comment: A spot check of July 2019 EDMRs were conducted. Yes No NA NE ■ ❑ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ M ❑ ❑ ❑ ❑ ❑ ❑ M El El El El 11 11 ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ M ❑ M ❑ ❑ ❑ ■ ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ❑ ❑ ❑ ■ Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? M ❑ ❑ ❑ Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable ❑ ❑ ❑ Solids, pH, DO, Sludge Judge, and other that are applicable? Comment: Permit Yes No NA NE (If the present permit expires in 6 months or less). Has the permittee submitted a new 0 ❑ ❑ ❑ application? Is the facility as described in the permit? ❑ 0 ❑ ❑ # Are there any special conditions for the permit? ❑ M ❑ ❑ Is access to the plant site restricted to the general public? M ❑ ❑ ❑ Page# 3 Permit: NCO032077 Owner - Facility: Contentnea Sewerage District WWTP Inspection Date: 09/04/2020 Inspection Type: Compliance Evaluation Permit Yes No NA NE Is the inspector granted access to all areas for inspection? 0 ❑ ❑ ❑ Comment: The permit says there is four 0.1 MG reaeration tanks with fine bubble diffusers but there arE only two. Other Yes No NA NE Comment: 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 ❑ ❑ ❑ Is disposal of screening in compliance? 0 ❑ ❑ ❑ Is the unit in good condition? 0 ❑ ❑ ❑ Comment: Grit Removal Yes No NA NE Type of grit removal a.Manual ❑ b.Mechanical 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: Flow Measurement - Influent Yes No NA NE # Is flow meter used for reporting? 0 ❑ ❑ ❑ Is flow meter calibrated annually? ❑ ❑ ❑ Is the flow meter operational? ❑ ❑ ❑ (If units are separated) Does the chart recorder match the flow meter? 0 ❑ ❑ ❑ Comment: Influent flow is reported when the effluent meter is not working. Page# 4 Permit: NCO032077 Owner - Facility: Inspection Date: 09/04/2020 Inspection Type: Contentnea Sewerage District WWTP Compliance Evaluation Flow Measurement - Effluent Yes No NA NE # Is flow meter used for reporting? 0 ❑ ❑ ❑ Is flow meter calibrated annually? M ❑ ❑ ❑ Is the flow meter operational? 0 ❑ ❑ ❑ (If units are separated) Does the chart recorder match the flow meter? 0 ❑ ❑ ❑ Comment: 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? ❑ ❑ ❑ Comment: Oxidation Ditches Yes No NA NE Are the aerators operational? M ❑ ❑ ❑ Are the aerators free of excessive solids build up? M ❑ ❑ ❑ # Is the foam the proper color for the treatment process? M ❑ ❑ ❑ Does the foam cover less than 25% of the basin's surface? M ❑ ❑ ❑ Is the DO level acceptable? M ❑ ❑ ❑ Are setteeometer results acceptable (> 30 minutes)? ❑ ❑ ❑ M Is the DO level acceptable?(1.0 to 3.0 mg/1) ❑ M ❑ ❑ Are settelometer results acceptable?(400 to 800 ml/I in 30 minutes) ❑ ❑ ❑ Comment: The MLSS is running around 2100 and the DO was .44 mg/L the day of inspection. Nutrient Removal Yes No NA NE # Is total nitrogen removal required? N ❑ ❑ ❑ # Is total phosphorous removal required? M ❑ ❑ ❑ Type Chemical # Is chemical feed required to sustain process? 0 ❑ ❑ ❑ Is nutrient removal process operating properly? N ❑ ❑ ❑ Comment: Secondary Clarifier Yes No NA NE Is the clarifier free of black and odorous wastewater? 0 ❑ ❑ ❑ Page# 5 Permit: NCO032077 Inspection Date: 09/04/2020 Owner - Facility: Contentnea Sewerage District WWTP Inspection Type: Compliance Evaluation Secondary Clarifier 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'/4 of the sidewall depth) Yes No NA NE ■ ❑ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ M ❑ ❑ ❑ ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ Comment: The sludge blanket was observed at 1 foot. The weirs are covered but the ORC lifted up one of the sections. The top lifted up and the weirs appear level. 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: Granville Farms pumps sludge as needed. Solids Handling Equipment Is the equipment operational? Is the chemical feed equipment operational? Is storage adequate? Is the site free of high level of solids in filtrate from filter presses or vacuum filters? Is the site free of sludge buildup on belts and/or rollers of filter press? Is the site free of excessive moisture in belt filter press sludge cake? The facility has an approved sludge management plan? Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ■❑❑❑ ❑ ❑ ❑ Yes No NA NE ■ ❑ ❑ ❑ ❑ ❑ ❑ M ❑ ❑ ❑ ❑ ❑ ❑ ■ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ Comment: The facility was not operating the equipment the day of the inspection. They were in the process of cleaning the equipent for the weekend. Filtration (High Rate Tertiary) Type of operation: Yes No NA NE Down flow Page# 6 Permit: NCO032077 Owner -Facility: Contentnea Sewerage District WWTP Inspection Date: 09/04/2020 Inspection Type: Compliance Evaluation Filtration (High Rate Tertiary) Yes No NA NE Is the filter media present? 0 ❑ ❑ ❑ Is the filter surface free of clogging? 0 ❑ ❑ ❑ Is the filter free of growth? M ❑ ❑ ❑ Is the air scour operational? ❑ ❑ ❑ 0 Is the scouring acceptable? ❑ ❑ ❑ M Is the clear well free of excessive solids and filter media? 0 ❑ ❑ ❑ Comment: ORC said the filter is backwashed once a week. 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: Standby Power Is automatically activated standby power available? Is the generator tested by interrupting primary power source? Is the generator tested under load? Was generator tested & operational during the inspection? Do the generator(s) have adequate capacity to operate the entire wastewater site? Is there an emergency agreement with a fuel vendor for extended run on back-up power? Is the generator fuel level monitored? Yes No NA NE ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ Yes No NA NE ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ Comment: The facility has 3 generators present and 1,000 gallons of extra fuel available on site. 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 ■ ❑ ❑ ❑ M ❑ ❑ ❑ ❑ ❑ ❑ Page# 7