1952

Three local industries formed the St. Clair River Research Committee. This committee concentrated its efforts on studies of sulphur dioxide and particulate matter in the air; they also monitored surface oil contamination in the St. Clair River.

1967

Expansion of the organization had increased the number of member companies from three to fourteen; the organization was chartered as a non-profit corporation under the name, Lambton Industrial Society.

2000

To emphasize environment as the focus and to more clearly indicate the organization's location, name was changed to Sarnia-Lambton Environmental Association.

2008

SLEA relocates its offices and resource library to the Suncor Sustainability Centre, established on the campus of Lambton College to encourage stakeholder synergies in the greening of our community. SLEA agrees to administer the Chemical Valley Emergency Co-ordinating Organization for mutual aid and its community information and education arm, the Community Awareness and Emergency Response Committee.