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2022-06-07 WWTF - NPDES Inspection ReportGood Life. Great Resources, DEPT. OF ENVIRONMENT AND ENERGY June 7, 2022 Mr. Richard Hansen, Mayor Blair WWTF 218 South 16th Street Blair, Nebraska 68008 RE: Blair WWTF NDEE ID: 46927 Program ID: NE0021482, NER910442 National Pollutant Discharge Elimination System (NPDES) Inspection report Dear Mr. Hansen, Pete Ricketts, Govemor On May 31St, 2022, a representative of the Nebraska Department of Environment and Energy inspected your facility. A NPDES compliance inspection was conducted at the Blair WWTF facility in Blair, Nebraska. A copy of the inspection report is enclosed. The Department has reviewed the findings of this report to determine your facility's compliance with applicable statutes, permits, or regulations. No concerns were observed at the time of the inspection. Please update the SWPPP document and apply for coverage under the new Industrial Stormwater General Permit by September 28tH 2022. Observations indicate your facility is in compliance with NPDES requirements at this time. If you have any questions regarding this inspection or any other NPP/NPDES issue, please call Mr. Charlie deShazer of the Nebraska Department of Environment and Energy at (402) 679-1429. Your continued cooperation is appreciated. Sincerely, Reuel Anderson, Supervisor NPDES Compliance Section RSA/Cd enclosure(s) Department of Environment and Energy Jim Macy, Director P.O. Box 98922 OFFICE 402-471-2186 FAX 402-471-2909 Lincoln, Nebraska 68509-8922 ndee.moreinfo@nebraska.gov NEBRASKA DEPT, OF ENVIRONMENT AND ENERGY NPDES Mechanical POTW Inspection Form NDEE ID: 46927 Program ID(s): NE0021482, NER910442 Inspection Date: 5/31/2022 Time: 1030 Facility Name: Blair WWTF Mailing Address: 218 South 16th Street, Blair, NE 68008 Facility Location: 850 East Fairview Drive, Blair, NE 68008 County: Washington Site entrance latitude/longitude: 41.55194°N, 96.10139°W Current Weather Conditions: 70°F, Sunny, slight breeze Lead Inspector: Mr. Charlie deShazer Individuals accompanying inspector: Mr. Reuel Anderson, NDEE; Mr. Josh Madsen, Blair WWTF; Mr. Luke Bostwick, Blair WWTF Facility description: Mechanical wastewater treatment facility for the City of Blair, NE. opening conference: Myself (Mr. Charlie deShazer) and Mr. Reuel Anderson arrived at the Blair WWTF at 10:30 a.m. on May 5th, 2022, for a routine NPDES compliance inspection. We parked at the main office building on the west side of the treatment facility. I spoke to Mr. Luke Bostwick and requested to speak with the operator, Mr. Josh Madsen. I explained to Mr. Madsen the purpose of my visit and presented my badge. Mr. Reuel Anderson also presented his badge. Mr. Madsen agreed to the inspection and at no point during the visit was consent withdrawn. The Inspection started with a records review. We met in Mr. Madsen's office where files are stored. Paper copies for DMR's, permit, fact sheet and application were all readily available. Mr. Madsen maintains good records of sample collection including, date, time, collectors, and results. Mr. Madsen and Mr. Bostwick are primarily responsible for sample collection at the Blair facility. Samples analyzed in house are well documented along with samples analyzed by Midwest Labs. Invoice records from S&S Pumping are kept online for sludge removal. Land application site locations are kept on file as well. After reviewing the NPDES permit records, Mr. Madsen led us on a tour of the lab. Calibration buffers 4 and 7 (photo 1) within their expiration were available. The facility should switch to a 7 and 10 or three point 4, 7 and 10 calibrations to bracket expected results. Next, I viewed the pH probe and calibration logs (photo 2). The drying oven temp reading was 105°C. The E. coli incubator temperature reading was 35°C (photo 5). The balance was last calibrated in 2015 (photo 4). Process control equipment including, settleometer, centrifuge, microscope, and blacklight (photo 6) are stored in the lab and in good condition. After the lab tour we returned to the office to review the ISW records. Mr. Madsen keeps good documentation of stormwater quarterly and annual inspections. The SWPPP document was created in October of 2017. The document did not have record of update or review since it was drafted. SWPPP documents should be reviewed/ updated annually. The document will need to be updated and submitted with the NOI for the new ISW permit (NER920000). The SWPPP had all the required information as well as a good map describing potential pollutant sources and stormwater drainage patterns. After the records review, we proceeded outside for the site tour. The tour followed the hydraulic flow of the treatment process. We began at the headworks/ lift station. The bar screen (photo 8) and dumpster (photo 7) are well maintained with no signs of spills or leaks. The grit removal station (photo 10) was also clean and free of spills. The flow meter was recently calibrated on May 3rd, 2022 (photo 9). Next, we viewed the primary clarifiers. Only Page 1 1 the north clarifier (photo 11) was in operation. The south clarifier (photo 12) was empty. The Blair facility uses a sixth month rotation on the two primary clarifiers for maintenance. I then viewed the sludge thickener (photo 13). The diesel generator (photo 14) was clean and had no sign of leaks. Both aeration basins (photos 15 and 16) were in operation during the inspection. Air bubbles were consistent and evenly spread with no dead spots. The two final clarifiers appeared to be in good shape. Only the north clarifier (photos 17 and 19) was in operation during the inspection. The south final clarifier (photo 18) was empty. The final clarifiers are operated in a sixth month rotation similar to the primary clarifiers. The chlorine contact chamber (photo 20) is the last part of the treatment process. The outfall (photo 21) from the contact chamber is where samples are collected. The effluent was clear during my inspection. I then viewed the stormwater outfalls (photo 22). No concerns were observed for stormwater pollution. As the final stop of the tour, we viewed the pump house. All pumps and blowers appeared to be in good working condition. After the site tour we reconvened in the office to conclude the inspection. I filled out an exit summary form (attachment 1) and explained the action items I listed. Mr. Madsen should plan to update/review the SWPPP document and apply for coverage under the new ISW permit. pH calibrations should include pH 10 to bracket expected results. I also suggested looking into what the recommended storage solution is for the pH probe. I then signed the exit summary along with Mr. Madsen. Facility Contact: Josh Madsen Title: Supervisor Phone: 402-426-5818 Email: Certifying Official: Richard Hansen I Title: Mayor I Phone: 402-426-4191 Authorized Representative: Al Shoemaker Title: Director of Public Works Phone: 402-426-4191 Treatment Plant Operator: Josh Madison Class: Supervisor Phone: 402-426-5818 WWTF Point Rating: 3 Backup ©Yes ❑No Treatment System Information Population served: 9,500 Design average daily: Design maximum daily: Measured average daily: Measured daily maximum Flow: 1.1 MGD Flow: 2.0 MGD Flow: 0.88 MGD (03/2022) Flow: 0.938 MGD (03/2022) Sludge disposal method: S&S Pumping removes approximately once per week. Sludge is land applied in Iowa. Significant Industrial Users: No Residential Users: 9,500 Outfall Information: One Outfall Outfall Location: 001— Located on the Southeast corner of the property. GPS Coordinates: 001- 41.55219°N, 96.09853°W Receiving water name/segment: Missouri River (MTI -10000) Page ( 2 Pre -inspection Records Review Records Review Description Observation NetDMR entry ©Yes ❑No DischargeNetDMR Monitoring subscriber agreement received on g 4/13/2022 DMRs submitted ©Yes ❑No Records Reports On time ❑Yes ®No include: (DMRs) Maintenance records ®Yes ❑No Days Late: NA Reported violations Dyes ®No required by the ®Yes ❑No Reported sanitary sewer ❑Yes ®No overflows/bypass/I&I Compliance (ECM, ECHO, NPDES permit Reported ❑Yes ®No backups/complaints and ICIS review) Notice of ❑Yes ®No violation/Order Effective date: 01/01/2020 Expiration date: 12/31/2024 Schedule of compliance ❑Yes ®No NPDES Permit Modified ❑Yes -Date: ONo Reported bypass ❑Yes ®No Single Event Violations Reported sanitary sewer ❑Yes ®No overflows No single event violations since last inspection on 10/21/2020 Reported backups Dyes ®No Reported complaints Dyes ®No Other ❑Yes ®No Coverage required NYes ❑No NOI submitted DYes ❑No Industrial NOI submitted 2/21/2017 Storm Water Any submitted ❑Yes X No corrective action Enforcement Notice of violation Dyes ®No,; No enforcement actions Facility Records Review- Maintain records and reports as required by permit Page ( 3 DMRs (Paper or ®Yes ❑ No electronic) Paper copies Current NPDES Records permit/Fact ®Yes ❑No include: sheet/application Maintenance records ®Yes ❑No Other records required by the ®Yes ❑No NPDES permit Page ( 3 Facility Site Inspection Treatment Stage The date(s), exact Observation place, time and ®Yes ❑No methods of sampling There are three total lift stations used for the city of Lift Station(s) or measurements Blair. One is at the headworks of the facility. The Samples are collected on site by either Mr. Madsen The individual(s) who Records of performed the ®Yes ❑No or Mr. Bostwick. Temperature, H CBOD TSS E. monitoring sampling or coli, and flow are measured in house. All other information measurements parameters are analyzed by Midwest Labs. The dates) analyses include: were performed ®Yes ❑No p Results are documented on a logbook and Midwest The individual(s) who Labs sample reports. performed the ®Yes ❑No analyses The results of such ®Yes ❑No analyses Sample p Composite/grab ©Yes El No Composite and grab samples are both collected by Handling Holding g ®Yes ❑No time/preservation facility staff. Two samplers are available on site. Calibration ®Yes ❑No pH is calibrated before each measurement using 4 Calibration brackets ❑Yes ©No results and 7 buffer solutions. I requested that the facility Calibration Buffers switch to a 7 and 10 or three point 4,7, and 10 within Expiration ®Yes ❑No calibrations to bracket expected results. Dates: Laboratory Process Controls ®Yes El No TSS temp recording: 105°C TSS Temp Recording ®Yes ❑ No E. coli incubator temp: 35°C Scale was last calibrated/maintained on 5/12/2015, BOD Temp ©Yes ❑ No Mr. Madsen is working towards getting a new scale. Recorrdingiling Scale Calibrations ®Yes El No Influent flow records ®Yes El No Flow Measurement: One meter is used at the Calibration Date: ®Yes ❑No Flow records 5/3/2022 facility. Effluent flow records ©Yes El No Influent: 746.1 gpm Effluent: NA Calibration Date: ©Yes ❑No Facility Site Inspection Treatment Stage Description Observation Number: 3 Backup power: Yes There are three total lift stations used for the city of Lift Station(s) Alarms: Yes Blair. One is at the headworks of the facility. The Ventilation/light: Yes other two are part of the collections system in the city Pump condition: Not observed of Blair. Bypass evidence: None Page 14 Industrial Storm Water (ISW) ISW/SWPPP Elements Description Solids collected from the bar screen are collected in a Headworks Dumping station dumpster removed every Wednesday by Abe's. Intent (NOI) & Screens/Comminutor Bar screen at headworks. Preliminary SWPPP created on 10/27/2017 Treatment Pollution SWPPP ©Yes ❑No SWPPP needs to be updated/reviewed. Grit Removal Grit is removed before the primary clarifiers. Primary Plan (SWPPP) Two aeration basins. Both were in operation during Treatment Aeration basin (s) the inspection. Two primary clarifiers. The north clarifier was in operation during the inspection. Normally one clarifier Secondary Primary clarifier is used at a time on a six-month rotation. Both Treatment clarifiers are used during high flow or to increase retention time. Two final clarifiers. North clarifier was in operation during the inspection. Final clarifiers are rotated Final Clarifier (s) similar to the primary clarifiers on a six-month rotation. Weir was slightly tilted to the south but maintained relatively even flow. Final Treatment Chlorine gas is used in a contact chamber before Chlorine discharge. Effluent Outfall 001 Effluent was clear. appearance Industrial Storm Water (ISW) ISW/SWPPP Elements Description Observation Notice of Intent (NOI) & NOI MYes El No Program ID# NER910442 Storm Water SWPPP created on 10/27/2017 Pollution SWPPP ©Yes ❑No SWPPP needs to be updated/reviewed. Prevention Plan (SWPPP) Page 15 Comments and Suggestions 1. Overall, the facility is well maintained and keeps good documentation. Records reviews showed consistent compliance with effluent limits and reporting requirements. Signature: Date: 6/3/2022 Photo Log All photos were taken by Charlie deShazer using a Samsung Galaxy S20 FE Page 16 Quarterly ©Yes 0 N Inspections Good documentation of quarterly and annual inspections. Annual ©Yes El No Quarterly Visual ®Yes El No Outfalls defined ©Yes El No Site Description Control measures ®Yes ❑No Location of pollutant ®Yes El No sources SWPPP Reviews and Updates SWPPP most recent updates logged and filings. 10/27/2017 Comments and Suggestions 1. Overall, the facility is well maintained and keeps good documentation. Records reviews showed consistent compliance with effluent limits and reporting requirements. Signature: Date: 6/3/2022 Photo Log All photos were taken by Charlie deShazer using a Samsung Galaxy S20 FE Page 16 O �G S O O A a 7 61 d n C OJ fD CL N N N N O Vi N N, N n I r - oc D -0 3 a nr ^ m N � N o Orrw w' N O n N .0 c a < 3 N pq' 7 S � N O v 3 p� O n :03 (D w o v =1 s Ln o L o LU o N O N � C !nN ty 7 d U -• O c) ti CD 0 _ d 11 � I I n n 7- v 3 O' rD .Q S O O ffl rD 7 v n w O c S x _D 7 Ln .+ S O C s rD rD m n O 0 0- rD 0 n n rD FL O L 7 S rD O_ n O O 3 d d rD n rD 3 n ti. S v v ^� 3 3 as m w -I o O n N D! ^. O O n � ; ES O rD �m O U p fD rD O O O O_ NEBRASKA DEPT, OF ENVIRONMENT AND ENERGY Inspection and Assistance Exit Summary NDEE ID: _WOA2r7NDEE Program& RNfoz).pi4r2 tVW1044NDEENotification #: E]InspsclionlOther L]Compliance Assistance Visit (CAV) Permit Assistance Visit (PAV) FacllltyfCrporatkm Narno: Nr�e WVT-(' Address V -W V--- City/Town: N1d%-kf- County Wk kSW11f,.p , State of Nebraska, Owy�erlOmupanL-'C)peratortof,,poctionContad(s): 66 SWI fl,&j-d- Onebraska.gov Mailing Address: Department of Environment and Energy, PC Box 911922, Lk-r-oln, Nebraska 68509-8922 inspection Date: —15&L 0 Start Time: - 103-4 End Time: 1-2-15-", 1P No concerns observed [j Further agency discussion needed to dolonnkw compliance LjConcerns obaerved: ffk.11ons to be performed Immediately or as soon as roasonably prntlevil: Please notify the Inspector when the above actions are completed. The Department widl provide a final Inspection foporl wittiln an agency average of 14 days of Ina inspection date. The final inspDcilon report will contain a coroplole list of any a1egad violations- Thus inspection exit summary does not preclude any other legal action by Pro Nebraska Department of Environment and Energy and Your prompt attention to the documented corXems will be catisidutud In as&ussment of yow voluntary compliance. This summary was left with: atsv' Sts ftasa contact the Inspector If you have any questions concernkV this kispedloo and assIstar"- exit "m!"ty, 8 Nvdv':�Jrflefo. fu -A aft of Ilei iRy W "w. adra�i' 4n- � r Y-6utrt Ins Contact Signature (Wlirad I 11111J. 19 Attachment 1: Exit summary form. Page 1 13