Drainage Identification

Sink, toilet, floor, and appliance drains should connect to the sewer system. This water is transported to the wastewater treatment plant and treated. In old buildings, these drains occasionally connect to the stormwater system which does not treat the water. City staff can dye test your drains to determine where they lead.

Outdoor drains and ditches are connected to the stormwater system. This water is transported directly to nearby creeks and rivers and is discharged without treatment. Storm drains are meant for rain and snow melt only. Keeping this water clean is important to keeping our waterways clean. 

Green dye test in storm manhole
Stormwater outfall pipe into water body