Pollution Prevention and Control Plan

The City’s Pollution Prevention and Control Plan addresses how the City manages the sanitary and combined sewer system, preventing issues such as sewage overflows into local waterways and basement flooding.

Why we need the PPCP

The City's sewer system currently experiences combined sewer overflows at some locations during intense wet weather periods. The City completed its current Pollution Control Plan in 2008 to identify actions to help manage the sanitary and combined sewer system in order to reduce overflows and basement flooding.

Efforts are underway to update the plan to reflect the improvements already made, while identifying and prioritizing the remaining work required to further reduce combined sewer overflows, protect against basement flooding and reduce pollution to local creeks, streams and Lake Ontario.


The City retained Hatch Corporation to undertake the study. This included determining the status of the sewer system, current issues, and possible solutions.

The first open house was held November 2018.

View the information display boards presented at the Pollution Prevention and Control Plan Public open house.

Contact us

Mark Green, M. Eng.
Manager of Environmental Services
City of St. Catharines
50 Church St.
P.O. Box 3012
St. Catharines, ON L2R 7C2
905.688.5601 ext. 2193

Mark Stirrup, M.Eng., P.Eng.
Principal Project Manager
Hatch Corporation
5035 South Service Rd.
Burlington, ON L7L 6M9

Copyright © 2014 The Corporation of the City of St. Catharines