St. Marys Cement Inc. (Canada) operating as CBM Ready Mix - Environmental Compliance Approval (air)

Instrument type: Environmental Compliance Approval (air)

ERO number
026-0979
Ministry reference number
8461-DXGL74
Notice type
Instrument
Act
Environmental Protection Act, R.S.O. 1990
Posted by
Ministry of the Environment, Conservation and Parks
Notice stage
Proposal
Proposal posted
Comment period
September 25, 2026 - November 9, 2026 (45 days) Open
Last updated

This consultation closes at 11:59 p.m. on:
November 9, 2026

Proposal summary

This proposal is to amend Environmental Compliance Approval (air & noise) No. 9841-BNUR2A issued to St. Marys Cement Inc. (Canada) operating as CBM Ready Mix, a ready-mix concrete facility located at 1093 Howard Road, Burlington, Ontario.

Location details

Site address

1093 Howard Road
Burlington, ON
Canada

Site location map

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Proponent(s)

St. Marys Cement Inc. (Canada) operating as CBM Ready Mix
55 Industrial Street
Toronto, ON
M4G 3W9
Canada

Proposal details

This proposal is to amend Environmental Compliance Approval (air & noise) No. 9841-BNUR2A issued to St. Marys Cement Inc. (Canada) operating as CBM Ready Mix, a ready-mix concrete facility located at 1093 Howard Road, Burlington, Ontario.

This amendment is to add the permanent operations of a portable ready-mix concrete plant at the facility.

Contaminant emissions to the atmosphere include:

  • particulate matter
  • respirable crystalline silica (quartz)
  • portland cement
  • slag, and
  • nitrogen oxides

Supporting materials

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Client Services and Permissions Branch
Address

40 St. Clair Avenue West
Floor 2
Toronto, ON
M4V 1M2
Canada

Office phone number

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