Beach Monitoring
Ontario Beaches are posted with warnings of possible health risks when elevated Escherichia coli (E.coli) densities are present. The recreational water quality guideline of 100 E.Coli per 100 ml of water is set jointly by the provincial ministries of Environment and Health.

E. coli: A Permanent Resident of our Beaches?
Why do unacceptable levels of E. coli continue to occur at the beaches, resulting in beach postings by the District Health Unit? What is the health risk associated with swimming in lake water containing elevated levels of E. coli? What is the source of this E. coli?

Lake Huron's Nearshore Water Quality
A Preliminary Report on Historical Nearshore Water Quality Information for Southeastern Lake Huron (Sauble Beach to Sarnia)

Nonpoint Source Pollution
Nonpoint-source pollution is another term for polluted runoff. Water washing over the land, whether from precipitation, car washing or watering crops or lawns, picks up an array of contaminants including oil, sand and salt from roadways, agricultural chemicals, and nutrients and toxic materials from both urban and rural areas.

Working Toward Clarity
Summary of the background report prepared by the Lake Huron Centre for Coastal Conservation on the state of Lake Huron's Water Quality