Water Resources

Municipal Water

Winooski provides safe, clean household water to residents of the City.  As part of the Champlain Water District, in 2015 we were honored for Excellence in Water Treatment and also in 2014 for having good tasting municipal tap water.  We’re able to maintain this level of quality because our water comes from a clean, deep water source in Shelburne Bay, and because we consistently test the water to ensure it remains clean and healthy for use by the community.

2018 Water Quality Report

2017 Water Quality Report

2016 Water Quality Report


The City of Winooski owns and operates an extended air wastewater treatment facility which treats municipal wastewater generated within the City-wide service area.  The treated effluent is discharged to the Winooski River and is subject to the permit limitations specified and monitored by Vermont Department of Environmental Conservation and USEPA.  The original wastewater treatment facility was constructed in 1970; several substantial upgrades were completed from 1979 through 1998.

 A majority of the City’s wastewater collection system was constructed prior to 1922 when the City was first incorporated.  This portion of the collection system was originally constructed as a combined sewer/stormwater system but separated into two distinct systems in 1974.  Currently the collection and treatment system serves nearly 8,600 residences and businesses.


Stormwater is water that comes from the environment via precipitation.  It’s important to our overall ecosystem—if that water picks up pollutants they will end up on our local streams and eventually the lake.  This is a particular challenge for an urban area like Winooski that has a large amount of paved area, which prevents water from being absorbed into the ground.  Also, when strong storms hit, stormwater can flow too quickly, causing erosion.

Winooski works with many other towns in Chittenden County to inform residents about how individuals can impact stormwater, so that the stormwater that flows over your property remains as clean as possible and is not flowing so fast that it will erode stream banks.  For more information on what you can do to keep stormwater clean, visit http://rethinkrunoff.org