Upper Thames River Conservation Authority Competitors

TRCA’s commitment to its employees has earned recognition for a second consecutive year as one of Greater Toronto’s Top Employers for 2026, reflecting the organization’s dedication to fostering a workplace that empowers its team to deliver positive impact. For the second consecutive year, TRCA is also proud to be named one of Canada’s Greenest Employers for 2026, recognizing our leadership in environmental stewardship. TRCA’s vast jurisdiction comprises the following nine watersheds, plus their collective Lake Ontario waterfront shorelines: • Carruthers Creek • Don River • Duffins Creek • Etobicoke Creek • Highland Creek • Humber River • Mimico Creek • Petticoat Creek • Rouge River More than 3.5 million people live within TRCA-managed watersheds, and many others work in and visit destinations across our jurisdiction. The population within TRCA’s jurisdiction is expected to grow significantly in the years to come. These watersheds span six upper-tier and 15 lower-tier municipalities. Some of Canada’s largest and fastest growing municipalities, including Toronto, Markham and Vaughan, are located entirely within the TRCA watershed jurisdiction. TRCA will continue the vital work of protecting the integrity and health of the rivers and creeks in the jurisdiction, developing a system of green and natural spaces that sustains local ecosystems, and advancing sustainable practices that will improve people’s lives within our growing region.

Halton is one of the fastest-growing communities in Canada and is home to four distinct municipalities: the City of Burlington, the Town of Halton Hills, the Town of Milton, and the Town of Oakville. Serving over 650,000 residents, Halton Region is committed to delivering high-quality, cost-effective programs and services that support well-planned, safe, healthy and inclusive communities. From public health, paramedic and housing services to water and wastewater, infrastructure, and community programs, Halton offers an exceptional quality of life, a growing economy and a strong sense of community. Connect with us to learn how we support you and your community every day.

The Grand River Conservation Authority (GRCA) manages the water and other natural resources on behalf of 39 municipalities and close to one million residents of the Grand River watershed. Our vision is a healthy watershed where we live, work, play and prosper in balance with the natural environment. The GRCA is a partnership of watershed municipalities, and provides an avenue to work together, addressing environmental issues and opportunities that serve to benefit the entire Grand River watershed. Through programs that balance human, environmental and economic needs, we work collaboratively with all levels of government, various organizations and members of the community to ensure the conservation, restoration and responsible management of water, land and natural habitats in the watershed. The roots of our organization go back to the 1930s, when the Grand River Conservation Commission was established to address problems resulting from industrialization, including flooding, pollution and an unreliable water supply. The Commission’s first project was Shand Dam, near Fergus, which was completed in 1942. It was the first dam built in Canada to serve multiple purposes - flood control, water supply and water quality. In 1946, the Ontario government passed the Conservation Authorities Act, which allowed for the creation of new watershed management agencies throughout the province. In 1948, the Grand River watershed municipalities created a second watershed management agency called the Grand Valley Conservation Authority. The old commission continued to exist in order to operate its dams and reservoirs. The new authority put its effort into buying environmentally significant land. The new authority also developed conservation areas for use by the public. Many of the GRCA's conservation areas were developed by the authority. In 1966, the two organizations merged to form the Grand River Conservation Authority. Please visit our website to learn more about the GRCA.