Notice of Completion: Heidelberg Water Supply System, Schedule B Municipal Class Environmental Assessment

Posted on Wednesday March 15, 2023

The Region of Waterloo (Region) has completed a Municipal Class Environmental Assessment (EA) Study to identify water supply system upgrades for the community of Heidelberg (see Study Area map). Some of the existing components of the water supply system infrastructure are reaching the end of their service life and this EA Study has been considering the best way to address this issue.

The preferred alternative solution is to connect the St. Clements and Heidelberg water supply systems by installing a new 1.1 km transmission watermain along Lobsinger Line. St. Clements wells will provide the water supply for both communities. The existing Heidelberg water treatment plant will be decommissioned.

This Class EA Study was completed in accordance with the planning and design process for Schedule B projects, as outlined in the Municipal Class EA document (October 2000, as amended), which is an approved process under the Ontario Environmental Assessment Act.

A Project File Report summarizing the Class EA Study process and findings is available online for a 30-day comment period starting March 15, 2023 on the Region’s website:

Interested persons may provide written comments between March 15, 2023 and April 14, 2023 to Ayman Khedr, P. Eng, M.A.Sc, Engineer, Engineering and Planning, Region of Waterloo, Water Services ( or discussed via telephone (519-575-4400 ext. 4412).

In the event that there are outstanding concerns following discussions with the Region, a request may be made to the Ministry of the Environment, Conservation and Parks (MECP) under Section 16 of the Environmental Assessment Act requiring a higher level of study (i.e., requiring an individual/comprehensive EA approval before being able to proceed), or that conditions be imposed (e.g., require further studies), only on the grounds that the requested order may prevent, mitigate, or remedy adverse impacts on constitutionally protected Aboriginal and treaty rights. Requests on other grounds will not be considered. Requests should include the requester contact information and full name for the ministry.

The request should be sent in writing or by email to:

Minister of the Environment, Conservation and Parks

Ministry of Environment, Conservation and Parks

777 Bay Street, 5th Floor

Toronto ON M7A 2J3


Director, Environmental Assessment Branch

Ministry of Environment, Conservation and Parks

135 St. Clair Ave. W, 1st Floor

Toronto ON, M4V 1P5

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