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Sanitary and Stormwater Systems

The City of Peterborough maintains two types of sewer systems, the Sanitary Sewage and Stormwater Systems. Each system is unique, and serves a distinct purpose.

Sanitary Sewage System

The Sanitary Sewage System is made up of a series of pipes, maintenance holes and pumping stations that collect wastewater from the plumbing system of all buildings in the City. The system carries wastewater to the Peterborough Wastewater Treatment Plant, where it is treated and returned to the Otonabee River.

Learn more about Inflow and Infiltration (I-I) to the Sanitary System and help us fix this problemFunding is available to help cover the costs!

Storm Sewer System and Stormwater Management

The storm system also includes a series of pipes and maintenance holes, as well as catch-basins, stormwater management ponds, oil and grit treatment devices and storm pipe outfalls (where stormwater discharges to a water-body). All stormwater that is collected in this system discharges directly to a small creek, or the Otonabee River without going to the Wastewater Treatment Plant. Approximately 25% of the City’s stormwater receives some treatment in a stormwater management pond or oil and grit treatment device.

See our Stormwater FAQ's or watch a video to learn more about stormwater!

Graphical Representation of Municipal Stormwater System