Groundwater is a major source of water supply for agricultural, commercial, industrial, municipal and residential uses, and it is critical for the survival of fish and aquatic life in Ontario's watercourses. A review of existing groundwater monitoring programs within the Ministry of the Environment (MOE) was undertaken by the Environmental Monitoring and Reporting Branch. The review affirmed the need for a comprehensive groundwater database for Ontario to characterize the location, quality and sustainable yield of the resource and describe where, how, and why the resource is changing.
