This consultation was open from:
March 25, 2025
to May 9, 2025
Decision summary
The ministry has issued a new Environmental Compliance Approval (industrial sewage works) for the installation of a new water management system aimed at collecting and reusing surface water and process water serving the St. Mary Cement Building Material (CBM) Windsor facility, located at 3510 Russell Street, Windsor, Ontario.
Location details
Site address
3510 Russell Street
City of Windsor,
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)
55 Industrial Street
Toronto,
ON
M4G 3W9
Canada
Decision details
The ministry has issued a new Environmental Compliance Approval (industrial sewage works) for the installation of a new water management system aimed at collecting and reusing surface water and process water serving the St. Mary Cement Building Material (CBM) Windsor facility, located at 3510 Russell Street, Windsor, Ontario.
The primary goal is to reduce the facility’s reliance on potable water by maximizing the reuse of water collected on-site. The facility currently collects surface water and excess process water through a system of settling basins and a collection swale, which directs the water to a large-capacity storage tank known as the "Lake Tank". This tank is designed to store water for reuse in the facility’s ready-mix concrete process. The treatment system will focus on reuse and minimizing environmental impacts during discharge under controlled conditions in the event of a large storm event.
The ministry has imposed effluent monitoring requirements.
Effects of consultation
No comments were received.
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.
4510 Rhodes Dr
Windsor,
ON
N8W 5K5
Canada
How to Appeal
This instrument decision can be appealed. You have 15 days from December 1, 2025 to begin the appeal process.
Carefully review the information below to learn more about the appeal process.
How to appealClick to Expand Accordion
Start the process to appeal
If you’re an Ontario resident, you can start the process to appeal this instrument decision.
First, you’ll need to seek leave (i.e. get permission) from the relevant appellate body to appeal the decision.
If the appellate body grants leave, the appeal itself will follow.
Seek leave to appeal
To seek leave to appeal, you need to do these three things:
- prepare your application
- provide notice to the minister
- mail your application to three parties
1. Prepare your application
You’ll need to prepare an application. You may wish to include the following things in your application:
- A document that includes:
- your name, phone number, fax number (if any), and/or email address
- the ERO number and ministry reference number (located on this page)
- a statement about whether you are a resident in Ontario
- your interest in the decision, and any facts you want taken into account in deciding whether you have an interest in the decision
- the parts of the instrument that you’re challenging
- whether the decision could result in significant harm to the environment
- the reason(s) why you believe that no reasonable person – having regard to the relevant law and to any government policies developed to guide decisions of that kind – could have made the decision
- the grounds (facts) you’ll be using to appeal
- the outcome you’d like to see
- A copy of the instrument (approval, permit, order) that you you are seeking leave to appeal. You’ll find this in the decision notice on the Environmental Registry
- Copies of all supporting documents, facts and evidence that you’ll be using to appeal
What is considered
The appeal body will consider the following two questions in deciding whether to grant you leave to appeal:
- is there is good reason to believe that no reasonable person, with respect to the relevant law and to any government policies developed to guide decisions of that kind, could have made the decision?
- could the decision you wish to appeal result in significant harm to the environment?
2. Provide your notice
You’ll need to provide notice to the Minister of the Environment, Conservation and Parks that you’re seeking leave to appeal.
In your notice, please include a brief description of the:
- decision that you wish to appeal
- grounds for granting leave to appeal
You can provide notice by email at minister.mecp@ontario.ca or by mail at:
College Park 5th Floor, 777 Bay St.
Toronto, ON
M7A 2J3
3. Mail your application
You’ll need to mail your application that you prepared in step #1 to each of these three parties:
- appellate body
- issuing authority (the ministry official who issued the instrument)
- proponent (the company or individual to whom the instrument was issued)
St. Marys Cement Inc. (Canada)
55 Industrial Street
Toronto,
ON
M4G 3W9
Canada
Registrar, Ontario Land Tribunal
655 Bay Street, Suite 1500
Toronto, Ontario
M5G 1E5
(416) 212-6349
(866) 448-2248
OLT.Registrar@ontario.ca
Include the following:
This is not legal advice. Please refer to the Environmental Bill of Rights for exact legal requirements. Consult a lawyer if you need help with the appeal process.
Connect with us
Contact
Client Services and Permissions Branch
135 St Clair Ave West
1st Floor
Toronto,
ON
M4V 1P5
Canada
Original proposal
Proposal details
This proposal is for a new Environmental Compliance Approval (industrial sewage works) for the installation of a new water management system aimed at collecting and reusing surface water and process water serving the St. Mary Cement Building Material (CBM) Windsor facility, located at 3510 Russell Street, Windsor, Ontario.
The primary goal is to reduce the facility’s reliance on potable water by maximizing the reuse of water collected on-site. The facility currently collects surface water and excess process water through a system of settling basins and a collection swale, which directs the water to a large-capacity storage tank known as the "Lake Tank". This tank is designed to store water for reuse in the facility’s ready-mix concrete process.
The facility does not have a permit to discharge wastewater into the Detroit River, and the applicant’s goal is to avoid discharge by reusing as much water as possible; and this application seeks approval for the proposed water treatment system and the eventual discharge if required. The treatment system will help ensure that water is properly managed, with a focus on reuse and minimizing environmental impact, while also allowing for safe discharge under controlled conditions in the event of a large storm.
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
Comment
Commenting is now closed.
This consultation was open from March 25, 2025
to May 9, 2025
Connect with us
Contact
Client Services and Permissions Branch
135 St Clair Ave West
1st Floor
Toronto,
ON
M4V 1P5
Canada
Comments received
Through the registry
0By email
0By mail
0