10 2023

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Consulting Village of Red Hook Wastewater System Red Hook Commons Village ofRed Hook Average Daily Flow : 0.012 MGD (Million Gallons per Day) 0.039 MGD (Million Gallons per Day) Required Samples Result Compliance BOD (June 1 - Oct 31) <4.0 mg/L 5 mg/L October 2023 TSS <10 mg/L 10 mg/L NH3 <0.5 mg/L 0.98 mg/L (June 1 - Oct 31) 1.81 mg/L (Nov 1 - May 31) Fecal Coliform <1.0/100 mL 200/100 mL Dissolved Oxygen 7.0 me/L 7.0 mg/L Minimum Deficionci Anoxic Mixers Currently a Medora mixer in place to keep Anoxic tank solids moving. May need to consider this infuture updates. Sand Filter Rebuild Sand Filters have never been rebuilt or media replaced. Should price and schedulefor the nearfuture. Train Downfor Reviews — One process train is downfor review ofdeficiencies. Pump Station Pump Station pumps clogging issues have been an issuefor some time. Pump Station mixing should be implemented to help with pumpfailure and pump station pump outs. Backflow Prev. Facilities backflow Preventor in need ofreplacement. Additional Notes: ----- End of picture text -----

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|FACILITY MAILINGADDRESS (Street, City, State, Zip code) TELEPHONE NUMBER

{1} Refer to current edition of “Notice to SPDES Permitees Regarding Use of tha Nationa! Pollutant Discharge Elimination System (NPDES) Discharge Monitoring Report Form” for procedures to calculate loadings, flow-weighted average, geometric mean, maximum minimum, percent removal, etc.

Note: Refer to current SPDES permit for specific monitoring requirements, Sample type for chlorine residual and fecal coliforms is grab.

|PROCESS CONTROL

|Effect on Receiving Stream Nameand amountofchemicals used in treatment process