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WASTEWATER Facility Performance: a. CBOD Concentration Influent— mg/1 (Design—250 mg/1) b. TSS Concentration Influent— mg/1 (No Design Listed) c. Effluent Fecal Coliform Geometric Mean— colonies/100 ml Permit Condition—200 organims/100 ml d. Flow- Average Daily Flow— 58,563gallons (Design—121,795 gal/day) Maximum Daily Flow—78,936 gallons Minimum Daily Flow—39,468 gallons Total Monthly Flow— 1,698,348 gallons IL Operations and Maintenance: • The monthly MPCA Discharge Monitoring Report was completed and submitted as required. • Have been working on the air leaks on the primary pond and will soon be repaired. In an attempt to lower the pond to be able to walk out and do maintenance on the aerators it was discovered that the slide gate valve on the secondary pond has failed to seal off the water, so the primary pond can't be drained far enough for the maintenance. I called Infratech in to evaluate the valve and they will be able to repair it as soon as the pond can be lowered enough to place a plug in the inlet pipe so the pit can be pumped out for them to do the work. I also had them look at 2 manhole structures on the dike which runs between the two ponds, since the concrete on these manholes are being eroded away from hydrogen sulfide(a gas normally found in the decay of sewage and is very aggressive on concrete). Infratech said that they could also fix these structures. He felt that to do both would run approximately$4,000.00. • The sewer jetter was taken in for service, due to apparent oil leaks on the unit. All is working well,however there may be a couple of leaks coming from the engine seal and perhaps the hydraulic seal. This will be closely monitored. • Received sewer call on the 5th and was able to clear the blockage. Also, on the 17th a sewer was beginning to back-up and was also jetted. All is working fine. • Before school begins,jetting from the school to in front of TDS building will be done. • Tina attended a 3 day MPCA Wastewater Treatment Technology Course at Craguns Resort in Brainerd and took a test for a class"C"wastewater certificate. Report Submitted By: Gary Giltner `.- Water/Wastewater Supervisor City of Pequot Lakes