This type of liquid waste cannot be legally disposed of down the sanitary sewer or in the stormwater system because of the level of contamination or health/environmental risk it poses. Usually, this waste is produced in large volumes and can come from businesses such as:

  • Restaurants (grease interceptors)
  • Car washes (vehicle wash interceptors)
  • Automotive repair shops (oil water separators)
  • Parking lots (catch basins/stormwater rehabilitation units)
  • Photo processors (fixer)
  • Laboratories (various chemicals)

These and other high-strength liquid wastes must be transported by a hauler to a proper disposal or treatment facility.

Proper Management & Disposal

Under the Environmental Management Act, the business owner is responsible for ensuring proper disposal and compliance with applicable legislation and can be held liable for any contamination created as a result of the deposit of that waste.