Notice of Addendum - Nobleton Water and Wastewater Servicing
In 2021, The Regional Municipality of York completed a Schedule C Municipal Class Environmental Assessment (Class EA) study that looked at long-term water and wastewater servicing options in the Township of King.
Addendum to Project File
A Notice of Completion was issued on November 3, 2021. Since the completion of the Class EA, additional updates were recommended including:
- Converting the Nobleton Well 5 facility into a centralized water treatment facility for Nobleton Wells 2, 5 and 6, and increasing the treatment capacity to 102 litres per second
- Converting the Nobleton Well 2 facility into a raw water (untreated water) pumping station
- Constructing a new raw (untreated water) watermain connecting Nobleton Well 2 to the new centralized water treatment facility
- Increasing the capacity of Wells 2 and 6 from 34 litres per second to 41 litres per second
The above noted recommendations require an addendum to the 2021 Project File.

This notice places the Project File Report Addendum on public record for review and comment for 31 calendar days from May 30, 2025 to June 30, 2025. The Project File Report Addendum is available for public review on york.ca/ea.
This notice was issued on May 30, 2025.
We invite you to review the Project File Report Addendum and direct written comments to:
Access York
17250 Yonge Street Newmarket, ON L3Y 6Z1
[email protected]
1-877-464-9675
In addition, a request to the Minister of the Environment, Conservation and Parks for an order may be made on the grounds that the requested order may prevent, mitigate or remedy adverse impacts on constitutionally protected Aboriginal and treaty rights.
Requests should include your full name and contact information and should specify what kind of order is being requested (additional conditions or individual environmental assessment), explain how an order may prevent, mitigate or remedy potential adverse impacts, and can include any supporting information. For more information on requests for orders, visit Ontario’s Class Environmental Assessments: Section 16 Order.
Requests must be received by the Ministry of the Environment, Conservation and Parks by June 30, 2025 and should be addressed in writing to:
Minister
Ministry of the Environment, Conservation and Parks
777 Bay Street, 5th Floor Toronto, ON M7A 2J3
@email
and
Director
Environmental Assessment Branch
Ministry of the Environment, Conservation and Parks
135 St. Clair Avenue West, 1st Floor Toronto, ON M4V 1P5
@email
With a copy to York Region at
The Regional Municipality of York
Regional Clerks
17250 Yonge Street Newmarket, ON L3Y 6Z1
@email
Personal information submitted (e.g., name, address and phone number) is collected, maintained and disclosed under the authority of the Environmental Assessment Act and the Municipal Freedom of Information and Protection of Privacy Act for the purposes of creating a public record and consultation purposes. Personal information you submit will become part of a public record that is available to the general public, unless you request that your personal information remain confidential.