 Plymouth crews begin annual water main flushing, street sweeping
The City of Plymouth is set to begin annual water main flushing in mid-April, which was preceded by a round of citywide street sweeping.
City crews began sweeping streets in March ahead of the water main flushing schedule to help prevent excess pollutants, such as salt, sand, leaves and debris, from being flushed down the storm sewer catch basins and into Plymouth’s water bodies.
Annual water main flushing helps maintain high-quality water and removes natural mineral and sediment buildup that accumulates at the bottom of the water main. Sediment buildup is caused by internal corrosion of the water mains over many years.
Water Main Flushing Schedule
In 2025, the city will flush water mains based on the schedule below:
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April 14-18: Industrial and residential areas on both sides of I-494, south of Highway 55.
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April 21 to May 2: Residential areas west of I-494 and south of the Canadian Pacific Railroad tracks. Residential area adjacent to Sunset Trail between Cheshire Lane and County Road 73.
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May 5-9: Commercial and residential areas surrounding the southern and eastern boundaries of Medicine Lake. Commercial and residential on both sides of I-494 generally between Schmidt Lake Road and Highway 55.
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May 12-16: Residential and commercial areas north of 36th Avenue and east of I-494.
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May 19-23: Residential area in the northwest corner, west of I-494. Residential area on northern and western boundaries of Medicine Lake.
To find out when specific areas of the city will be flushed, check the map at plymouthmn.gov/watermainflushing or call the Plymouth Maintenance Facility at 763-509-5950.
Residents are asked to keep garbage, recycling and organics containers behind the curb and out of the road during the flushing process to prevent containers from floating down the road.
Residents should also note that water may be discolored throughout this time, but it is more likely while an immediate surrounding area is flushed. Residents may want to avoid doing laundry when flushing is occurring nearby. Residents who notice discolored water should let their outdoor water faucet run until the water is clear.
View frequently asked questions and more information at plymouthmn.gov/watermainflushing.
Street Sweeping Protects Water Quality
Street cleaning is completed three times per year to help protect Plymouth's lakes, creeks and wetlands.
Maintaining clean streets is a high priority for the City of Plymouth due to its commitment to surface water quality. On average, more than 1,200 tons of material – the equivalent of 2.4 million pounds – is cleaned off of city streets each year
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