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The Survey of Drinking Water Plants is conducted to provide Canadians with national and regional information related to the production of drinking water. This is a survey of drinking water plants serving communities of 300 or more people, and asks for information on volumes of water drawn and treated, treatment type, financial aspects of the operation, as well as raw and treated water quality.

This survey is part of the initiative of the Canadian Environmental Sustainability Indicators (CESI) by which Statistics Canada, Environment Canada and Health Canada collaborate to produce environmental surveys and indicators. As part of the CESI initiative, the Survey of Drinking Water Plants was conducted to fulfill the data requirements for the development of a national indicator of source and treated water quality. It was also intended to provide other statistical measures of the links between human activity and environmental quality.

The first survey cycle collected information for the reference years 2005, 2006 and 2007. This report presents key survey results, with a focus on the latest reference year, 2007.