This consultation was open from:
November 4, 2025
to December 19, 2025
Proposal summary
This proposal is for a new Environmental Compliance Approval (air & noise) for CBM Ready Mix for the operation of three ready-mix concrete batching plants, located in Bowmanville, Ontario.
Location details
Site address
410 Bowmanville Avenue
Bowmanville,
ON
Canada
Site location map
The location pin reflects the approximate area where environmental activity is taking place.
View this location on a map opens link in a new windowProponent(s)
St. Marys Cement Inc. (Canada) operating as CBM Ready Mix
55 Industrial Street
Toronto,
ON
M4G 3W9
Canada
Proposal details
This proposal is for a new Environmental Compliance Approval (air & noise) for CBM Ready Mix for the operation of three ready-mix concrete batching plants, located in Bowmanville, Ontario.
This application includes all emission sources from the facility that exhaust to the atmosphere including raw material storage and handling, ready-mix concrete storage and shipping, baghouses, and maintenance operations and activities. Contaminant emissions to the atmosphere include:
- particulate matter
- respirable crystalline silica
- calcium carbonate
- portland cement
- slag
- calcium oxide
- chromium, and
- nickel
Supporting materials
View materials in person
Some supporting materials may not be available online. If this is the case, you can request to view the materials in person.
Get in touch with the office listed below to find out if materials are available.
135 St Clair Ave West
1st Floor
Toronto,
ON
M4V 1P5
Canada
Connect with us
Contact
Client Services and Permissions Branch
135 St Clair Ave West
1st Floor
Toronto,
ON
M4V 1P5
Canada
Comment
Commenting is now closed.
The comment period was from November 4, 2025
to December 19, 2025