Markham has a Sewer Use By-law in place to protect our sewer system and our source water.
Why Does Markham Need a Sewer Use By-Law?
Markham's Sewer Use By-law protects sewer systems, streams, and lakes. The by-law also limits the discharge of substances that may:
Markham's Sewer Use By-law 2014-71 (PDF)
Who enforces the Sewer Use By-law?
Markham's Waterworks Department ensures compliance. It monitors and samples discharges into Markham's sewers. The by-law applies to all discharges. These include: