Rural Water Quality Testing Program, Managed by the Ontario Federation of Agriculture for the Ontario Farm Environmental Coalition
Ontario Ministry of the Environment Water webpage
Some of the information in the drinking water section of this webpage includes:
The Walkerton Inquiry website
"This is the official website of the public inquiry into the E.Coli contamination of the water supply in Walkerton, Ontario, and into the safety of Ontario's drinking water, established by the government of Ontario under the Public Inquiries Act."