Ontario. Ministry of the Environment.

[Technical report on the status of the Walkerton water supply system : executive summary and conclusions].

Issued also in French. Subject(s): Escherichia coli infections - Ontario - Walkerton, Water quality - Ontario - Walkerton, Drinking water - Contamination - Ontario - Walkerton, Municipal water supply - Ontario - Walkerton. Archived by Library: Nov. 24, 2000