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______________________________________________________________________________ <br /> <br />Page 1 of 2 <br /> <br /> <br /> <br /> <br /> <br />UTILITIES COMMISSION MEETING <br />TO: <br />ERMU Commission <br />FROM: <br />Dave Ninow – Water Superintendent <br />MEETING DATE: <br />February 9, 2021 <br />AGENDA ITEM NUMBER: <br />6.1j <br />SUBJECT: <br />Staff Update <br />ACTION REQUESTED: <br />None <br />DISCUSSION: <br />• Delivered eleven new water meters. <br />• Sealed the water meter, installed an encoder receiver transmitter, and took curb stop <br />ties from eleven water services. <br />• Completed 15 BACTI/Total Chlorine Residual Samples <br />o All confirmed negative for Coliform Bacteria <br />o Bacteriological/Disinfectant Residual Monthly Report submitted to the MDH <br />• Completed 21 routine fluoride samples <br />o All samples met MDH standards <br />o Submitted MDH Fluoride Report <br />• Submitted Discharge Monitoring Report (DMR) to the Minnesota Pollution Control <br />Agency (MPCA) for the Water Treatment Plants. <br />• Submitted DMR to the MPCA for the Diesel Generation Plant. <br />• On January 30, we received a report of water boiling out of the ground on the west side <br />of Jackson Avenue, north of School Street. Utility staff was able to shut off the ten-inch <br />water main and excavate to find a radial crack in the pipe. Rental of a larger excavator <br />was needed due to the depth of the water main; repair of the leak was done in house by <br />utility staff. <br />• During our routine annual inspections of the iron and manganese filter at water <br />treatment plant #4 the water operators found that the filter media was uneven, <br />indicating an issue with backwashing. They also witnessed that there were some small <br />“mud balls” (clumps of media, iron, and manganese) on top of the filter media. We have <br />added a high strength chlorine solution to the filter and are running a series of air <br />washes and backwashes to break up the clumps. Filter media will need to be added to <br />replenish what was lost due to backwashing. The water plant control programing will be <br />modified to fix issues with the backwash sequence. <br />• The diaphragm pump that feeds sodium permanganate failed at water treatment plant <br />#6. We have replaced it with a new peristaltic chemical feed pump which will be more <br />accurate and reliable. <br />131