Stormwater Management

What's New

Flood Control Program - Stormwater Fee

About Markham's Stormwater System

Aerial view of stormwater pond in MarkhamThe City of Markham, its residents and businesses value our environment and its natural resources. Our stormwater management activities help protect and enhance our water resources, and maintain the continued health of our streams, rivers, lakes, fisheries and natural heritage systems.

Stormwater management policies and practices also help manage the risk of flood damages in natural and urban drainage systems.

Markham's stormwater management systems have evolved from basic ditch and storm sewer drainage networks, to advanced storage and treatment facilities that manage both the quality and quantity of stormwater runoff and snowmelt.

Today's stormwater management policies and standards promote systems that mimic the natural water cycle and protect sensitive fish species in our environment.

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