The URL can be used to link to this page

Home My WebLink Aboutnc0025348_Inspection_20200623ROY COOPER it Cuvanar �% MICHAEL S. REGAN , .•� . S. DANIEL SMITH NORTH CAROLINA M,w.r EnWronmenlal Quality July 08, 2020 Walter B Hartman City of New Bern PO Box 1129 New Bern, NC 28563-1129 SUBJECT: Compliance Inspection Report New Bern WWTP NPDES WW Permit No. NCO025348 Craven County Dear Mr. Hartman: The North Carolina Division of Water Resources conducted an inspection of the New Bern WWTP on 6/23/2020. This inspection was conducted to verify that the facility is operating in compliance with the conditions and limitations specified in NPDES WW Permit No. NCO025348. 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. The facility was found to be compliance with NPDES permit #NCO025348 and has passed the toxicity test. The results of the toxicity test are included. If you should have any questions, please do not hesitate to contact Paul Mays with the Water Quality Regional Operations Section in the Washington Regional Office at 252-948-3940 or via email at paul. mays@ncdenr.gov. ATTACHMENTS Cc: Laserfiche Sincerely, Paul Mays, Environmental Specialist 1 Water Quality Regional Operations Section Washington Regional Office Division of Water Resources, NCDEQ eo Cff t N _ a+t _ p s l t fl ±. p q ri t± }.ga�ifw 34o ussn .;t ..ar_ha IH s gto.. 4±nt as. ^a PSSP, Division of Water Resources July 7, 2020 MEMORANDUM To: David May Water Quality Regional Operations, WaRO Through: Cindy A. Moore (',— Supervisor, Aquatic Toxicology Branch (ATB) From: Lorimar S. Henning AH Environmental Specialist Il, Aquatic Toxicology Branch (ATB) Subject: Whole effluent toxicity test results New Bern WWTP NPDES Permit # NCO025348/001 Craven County The aquatic toxicity test using a composite sample of effluent discharged from the New Bern WWTP has been completed. New Bern WWTP has a permitted effluent discharge of 7.0 million gallons per day (MGD) entering Neuse River. Whole effluent samples were collected on June 23 by Robbie Bullock for use in an acute Mysidopsis bahia pass -fail toxicity test. The test using these samples resulted in a pass. Toxicity test information follows. Test Type Test Concentration Test Result Control Survival Test Treatment Survival Sample pH Sample Conductivity Sample Total Residual Chlorine Acute 24-hour Mysidopsis bahia pass -fail 90% Pass 100% 100% 8.28 SU 37,700 micromhos/cm <0.1 mg/L Test results for the above sample indicate that the effluent would not be predicted to have water quality impacts on receiving water. Please contact us if you have any questions or if further effluent toxicity monitoring is desired. We may be reached at (919) 743-8401. Basin: Neuse River cc: Robbie Bullock (WaRO) United States Environmental Protection Agency Form Approved. EPA Washington, D.C. 20460 OMB No. 2040-0057 Water Compliance Inspection Report Approval expires8-31-98 Section A: National Data System Coding (i.e., PCS) Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type 1 IN 1 2 le I 3 I NCo025348 I11 121 20/06/23 117 181Q1 191 a 201 I 21111111111111111111111111111111111111111111 f6 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA ---------------------- Reserved ------------------- 72 ti 731 174 7 I I I I I80 67L --------- - 1 701L, J 1 711n liL -1 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 Dale POTW name and NPDES oermit Number) 10:OOAM 20/06/23 13/12/01 New Bern WWTP 307 Glenburnie Dr Exit Time/Date Permit Expiration Date New Bern NC 28560 11:30AM 20/06/23 18/06/30 Name(s) of Onsite Representative(s)Rtles(s)/Phone and Fax Number(s) Other Facility Data /// Tony Randall Hawkins/ORC/252-639-7556/ Name, Address of Responsible OfficialMtle/Phone and Fax Number Contacted Walter B Hartman,PO Box 1129 New Bern NC 285631129/City Manager/252-636-4014/2526361848 No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit 0 Flow Measurement Operations & Maintenar Records/Reports Sludge Handling Dispo: 0 Facility Site Review Effluent/Receiving Wate 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 Robert E Bullock DWR/Division of Water Quality/252-948-3924/ Paul M Mays DWRNVARO WQ/252-948-3940/ 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 NCO025348 I11 12I 20/06/23 17 18 1 o I (Cont.) Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) On 6/23/2020 at 10:OOam Paul Mays and Robbie Bullock from the Washington Regional Office conducted a Bioassay Compliance Inspection of New Bern WWTP. All required records and documents were examined for compliance of permit #NC0025348. February 2020 DMR and corresponding lab data was reviewed by Paul Mays. No discrepancies were found between the lab data and data reported on the DMR. The DMR was complete, all required the data wa: present and reported at the frequency required by permit #NC0025348. The ORC visitation log, annual compliance report and a copy of the permit were also readily available for review. The staff were very helpful and provided all the required documents, records, and data for the inspection. The facility was well kept and clean. All units were operational and well maintained by staff. The only possible concern were some grease particles present in the secondary clarifiers during the inspection. Regardless, the effluent looked good and no major issues were found. Effluent and Influent Flow Meters were calibrated on 8/20/2019 The permit expired Jun 30, 2018 and a new one is currently in draft The facility passed the toxicity test. The facility was found to be compliant with permit #NC0025348 Page# Permit: NCO025348 Inspection Date: 06/23/2020 Owner - Facility: New Bem WWTP Inspection Type: Bioassay Compliance 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? 0 ❑ ❑ ❑ Is access to the plant site restricted to the general public? M ❑ ❑ ❑ Is the inspector granted access to all areas for inspection? 0 ❑ ❑ ❑ Comment: 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: Facility was clean and grounds were well maintained. 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 COCs Are DMRs complete: do they include all permit parameters? ❑ ❑ ❑ Has the facility submitted its annual compliance report to users and DWQ? 0 ❑ ❑ ❑ (If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operatc 0 ❑ ❑ ❑ on each shift? Is the ORC visitation log available and current? 0 ❑ ❑ ❑ Is the ORC certified at grade equal to or higher than the facility classification? 0 ❑ ❑ ❑ Is the backup operator certified at one grade less or greater than the facility classification' 0 ❑ ❑ ❑ Is a copy of the current NPDES permit available on site? 0 ❑ ❑ ❑ Page# 3 Perrnit: NCO025348 Owner -Facility: New Bern WWTP Inspection Date: 06/23/2020 Inspection Type: Bioassay Compliance Record Keeping Yes No NA NE Facility has copy of previous year's Annual Report on file for review? 0 ❑ ❑ ❑ Comment: Feb 2020 DMR was reviewed with corresponding lab data. No discrepancies were found between lab data and DMR. Additionally, all data on the DMR was reported at the frequency required by the permit. All required documents/records were readily available for review and well maintained. Pump Station - Influent Is the pump wet well free of bypass lines or structures? Is the wet well free of excessive grease? Are all pumps present? Are all pumps operable? Are float controls operable? Is SCADA telemetry available and operational? Is audible and visual alarm available and operational? Comment: Flow Measurement - Influent # 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: Influent Meter was calibrated 08/20/2019 Yes No NA NE ■ ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ❑ ❑ ■ ❑ ■ ❑ ❑ ❑ ❑ ❑ ❑ ■ Yes No NA NE ❑ ■ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ❑ ❑ ■ ❑ Influent sampler is flow proportional and temperature was set to 3 degrees Celsius. Bar Screens Yes No NA NE Type of bar screen a.Manual b.Mechanical Are the bars adequately screening debris? N ❑ ❑ ❑ Is the screen free of excessive debris? 0 ❑ ❑ ❑ Is disposal of screening in compliance? 0 ❑ ❑ ❑ Is the unit in good condition? 0 ❑ ❑ ❑ Comment: Page# 4 Permit: NCO025348 Owner -Facility: New Bern WWTP Inspection Date: 06/23/2020 Inspection Type: Bioassay Compliance 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? IN ❑ ❑ ❑ # Is disposal of grit in compliance? 0 ❑ ❑ ❑ Comment: Dumpster disposal three times a week. Oxidation Ditches Yes No NA NE Are the aerators operational? 0 ❑ ❑ ❑ Are the aerators free of excessive solids build up? ■ ❑ ❑ ❑ # Is the foam the proper color for the treatment process? M ❑ ❑ ❑ Does the foam cover less than 25% of the basin's surface? 0 ❑ ❑ ❑ Is the DO level acceptable? M ❑ ❑ ❑ Are settleometer results acceptable (> 30 minutes)? ❑ ❑ ❑ 0 Is the DO level acceptable?(1.0 to 3.0 mg/1) ❑ ❑ N ❑ Are settelometer results acceptable?(400 to 800 ml/I in 30 minutes) ❑ ❑ ❑ Comment: Anoxic zone was 0.26 ppm and Aeration Basin was 1.25 ppm. Probes automatically operate aerators to maintain DO levels through SCADA. 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 Y. of the sidewall depth) I[�: C7: L•�:I d ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ Comment: The effluent looks good and the clarifier was in good working condition. However, some grease particles were present. Sludge judge showed 3ft of sludge. Page# 5 Permit: NCO025348 Owner -Facility: New Bern WwTP Inspection Date: 06/23/2020 Inspection Type: Bioassay Compliance Secondary Clarifier Yes No NA NE Standby Power Yes No NA NE Is automatically activated standby power available? E ❑ ❑ ❑ Is the generator tested by interrupting primary power source? 0 ❑ ❑ ❑ Is the generator tested under load? 0 ❑ ❑ ❑ 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? N ❑ ❑ ❑ Is the generator fuel level monitored? 0 ❑ ❑ ❑ Comment Sand Filters (Low rate) Yes No NA NE (If pumps are used) Is an audible and visible alarm Present and operational? 0 ❑ ❑ ❑ Is the distribution box level and watertight? IN ❑ ❑ ❑ Is sand filter free of ponding? N ❑ ❑ ❑ Is the sand filter effluent re -circulated at a valid ratio? ❑ ❑ 0 ❑ # Is the sand filter surface free of algae or excessive vegetation? 0 ❑ ❑ ❑ # Is the sand filter effluent re -circulated at a valid ratio? (Approximately 3 to 1) ❑ ❑ 0 ❑ 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: Flow Meter was calibrated on 8/20/2019 Effluent sampler is flow proportional and temperature was set to 3 degrees Celsius. De -chlorination Yes No NA NE Type of system ? Liquid Is the feed ratio proportional to chlorine amount (1 to 1)? N ❑ ❑ ❑ Is storage appropriate for cylinders? 0 ❑ ❑ ❑ # Is de -chlorination substance stored away from chlorine containers? 0 ❑ ❑ ❑ Page# 6 Permit: NC0025348 Owner - Facility: Inspection Date: 06/23/2020 Inspection Type: New Bern WWTP Bioassay compliance De -chlorination Yes No NA NE Are the tablets the proper size and type? ❑ ❑ 0 ❑ Comment: Sodium bisulfate is used for de -chlorination. Are tablet de -chlorinators operational? ❑ ❑ 0 ❑ Number of tubes in use? Comment: Disinfection -Liquid Yes No NA NE Is there adequate reserve supply of disinfectant? M ❑ ❑ ❑ (Sodium Hypochlorite) Is pump feed system operational? 0 ❑ ❑ ❑ Is bulk storage tank containment area adequate? (free of leaks/open drains) 0 ❑ ❑ ❑ Is the level of chlorine residual acceptable? 0 ❑ ❑ ❑ Is the contact chamber free of growth, or sludge buildup? 0 ❑ ❑ ❑ Is there chlorine residual prior to de -chlorination? ❑ ❑ ❑ 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 Solids Handling Equipment Yes No NA NE Is the equipment operational? M ❑ ❑ ❑ Is the chemical feed equipment operational? M ❑ ❑ ❑ Is storage adequate? 0 ❑ ❑ ❑ Is the site free of high level of solids in filtrate from filter presses or vacuum filters? M ❑ ❑ ❑ 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? M ❑ ❑ ❑ The facility has an approved sludge management plan? ❑ ❑ ❑ 0 Comment: Page# 7