Effluent from carpet cleaning operations can contain high concentrations of grit, heavy metals and chemicals, and often exceed levels specified as restricted under the Sewer Use Bylaw.
Much of the suspended particle waste is non-biodegradable and can accumulate in sewer pipes and collection systems, causing abrasion of pumps and obstruction of screens. Once this material reaches the ocean, it tends to persist in the receiving environment, without biodegrading. These wastes can be harmful to our ecosystems and pose a risk to aquatic and marine species.