Current status

We have made the proposed Reid Road Reservoir Quarry subject to a project-specific environmental assessment process under the Environmental Assessment Act to ensure continued protection of the environment.

Get details on the regulation.

Project summary

The Minister of the Environment, Conservation and Parks initially received 20 designation requests for the Reid Road Reservoir Quarry in Milton asking that the project be made subject to Ontario’s Environmental Assessment Act.

The Lieutenant Governor in Council has made a project-specific regulation designating the establishment and operation of the quarry as an undertaking to which the Environmental Assessment Act applies in light of concerns raised about the quarry.

This regulation also exempts the project from certain Environmental Assessment Act requirements and establishes a project-specific environmental assessment process for the quarry, recognizing the work that has been completed under the Aggregate Resources Act process.

The ministry sought comments on the proposal for the regulation. As a result, numerous comments were received by the ministry in support of the regulation.

Learn more about the quarry on the James Dick Construction Ltd. website.


James Dick Construction Ltd.


9210 Twiss Road, Town of Milton (1.5 kilometres west of the Hamlet of Campbellville)



Reference number



Jenny Archibald, Environmental Assessment Branch

Project history

Designation and exemption regulation (2021): filed
Expiry of public comment period: March 15, 2021
Decision date: July 30, 2021

Designation/Exemption (2021)

The Environmental Assessment Act (Act) allows for the designation, by regulation, of a major commercial or business enterprise or activity that is not already subject to the requirements of the Act as an undertaking to which the Act applies. The Act also allows for regulations to be made to exempt an undertaking from some or all of the requirements of the Act, and that exemption can be made subject to conditions.

By requiring an environmental assessment process for the establishment and operation of this quarry, additional opportunities for public consultation and environmental studies will be provided. For example, studies not required as part of the application process under the Aggregate Resources Act must be completed as part of the environmental assessment.

The quarry is proposed by James Dick Construction Limited and is located about 1.5 kilometres west of the Hamlet of Campbellville, in the Town of Milton, at 9210 Twiss Road. The proponent’s two-year notification and consultation period under the aggregate license application process ended on January 29, 2021. The proponent submitted its report documenting how issues and concerns have been addressed and considered, and the Minister of Northern Development, Mines, Natural Resources and Forestry may make a decision under the Aggregate Resources Act, which may include approving or refusing the licence application or referring the application to the Ontario Land Tribunal for a hearing.

Learn more on the Environmental Registry of Ontario.