03-20-23-WS - Laserfiche WebLink

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Water Monitoring/ Sampling is required by the MDH. On a monthly basis, 10 predetermined sample sites are visited and a water sample is collected to test for Bacteria and Chlorine Residual. These samples are coordinated through Pace Analytical and results are submitted on the city’s behalf to MDH. Additional sampling is collected quarterly by PW Staff and submitted directly to the MDH. The MDH also requires annual, the Consumer Confidence Report be mailed to property owners in July. This information is gathered by and mailed with the utility bill sent by the Utility Billing Department. Every 5 years, the MDH requires Lead and Copper sampling from 20 locations citywide. This process was last completed in 2022. Booster Station Routine Maintenance and Inspections are completed as follows- x Daily- checking pump run times. This aids in diagnosing any pump related issues proactively. x Monthly- greasing pumps x Monthly- Inspection and test run the diesel-powered standby generator and auto transfer switch. The key items inspected are, fluid levels, starting battery, battery charging system, coolant circulator (assists in cold weather starting), fuel level, and the overall condition of the site/ enclosure. Ensuring the equipment is secure and ready for emergency service. x Perform condition assessments to determine any future rehabilitation needs. Water Tower Maintenance and Inspection. As part of the 2023 PW Paving Project, the South Water Tower service drive is scheduled to be repaved. This includes the current footprint of a U- shape around the Booster Pump building. In addition, the North Water Tower is scheduled to sub-cut, grade and pave a new 10’ wide U-shaped driveway around the tower. Following the paving at both sites, turf restoration will be completed. Below are routine items to be completed at each water tower- x Daily inspection of telemetry readings (tower levels). Intrusion alarms on tower entry doors are also monitored. x Grounds maintenance, mowing, trimming, tree trimming, snow plowing. x Repairs and painting are needed to the wood fence at the North Tower. This will be coordinated with the Cell Provider per the lease agreement. x Current guidelines recommend a full inspection (float down inspection) of the tower structure, coatings, and OSHA safety requirements every 5 years. This includes draining the tower to roughly 50% and completing a thorough inspection of the wet area. The remainder of the tower, referred to as the dry area is also inspected. Both our towers are with steel, corrosion is a large concern. Correcting the coating/ paint early prevents costly future repairs. o The North Tower repainting project, final warranty repairs were completed in 2021. The next float down inspection is expected in 2026. o Staff is reviewing the final report from the inspection completed at the end of 2022 on the South Tower. Preventative maintenance recommendation is outlined in the report for completion in 2023. (This item will be brought forward at a future work session discussion with Council.)