Skip to content
Tell us what you think about our data and how you’re using it. Take our survey

Drinking Water Surveillance Program

The Drinking Water Surveillance Program (DWSP) monitors water quality at selected municipal drinking water systems for scientific and research purposes. DWSP is a voluntary partnership that compliments the regulatory monitoring that must be done by the drinking water systems. DWSP monitors for inorganic, organic and radiological parameters.

Water quality data are available by individual years.

Additional Info

Field Value
Geographic coverage Ontario
Last Validated Date 2021-05-26
Update frequency Yearly

Drinking Water Surveillance Program

Learn more about accessing data using different file types.

2018 - 2020

2013 - 2017

2008 - 2012

2003 - 2007

1998 - 2002

Supporting Files

Report an error with this data

Fill out a Data Catalogue error report to let us know if there are issues with the resources in this dataset.