Sewer Use By-law

Sewer Use By-law 21-036 regulates and controls the discharge of water and wastewater into the sanitary and/or storm sewer distribution system within Waterloo Region. The by-law protects the wastewater treatment system and water quality of the Grand River.

Report a spill immediately if you witness or suspect a spill has occurred or is about to occur.

Sanitary or storm sewer discharge permits

Businesses must follow the Region of Waterloo Sewer Use By-law 21-036 and apply for a permit.

The Region of Waterloo Sewer Use By-law 21-036 regulates and controls the discharge of water and wastewater into the sanitary and/or storm sewer distribution system within Waterloo Region. The by-law protects the wastewater treatment system and water quality of the Grand River.

Apply for a Sewer Use By-law permit

Discharging fat, oil, and grease

Businesses discharging fat, oil, and grease (FOG) must comply with the Region of Waterloo Sewer Use By-law 21-036 and apply for a permit. Workers, management, facility owners, and property owners all must understand and manage the type of materials going down the drain. Follow these guidelines for properly disposing of fat, oil, and grease at your business.

Draining pools or hot tubs

You are responsible for the proper discharge of water from your pool or hot tub. This water contains chemicals such as chlorine, bromine, salt and algaecides. These chemicals can be harmful to the natural environment and our drinking water supply. Discharging these chemicals to storm sewers or a waterway is considered an environmental spill and those responsible can be held accountable.