Bolton Zone 7 Water Elevated Storage and Transmission Mains

Project overview

Peel Region continues to grow, and new infrastructure is needed to ensure residents and businesses in Caledon have reliable access to clean drinking water now and in the future.

To support this, Peel Region is undertaking a planning study for new water infrastructure in the Bolton area: the Bolton Zone 7 Water Elevated Storage and Transmission Mains Schedule ‘C’ Municipal Class Environmental Assessment (MCEA).

This project involves studying the need for 2 new water towers for storage and the large underground water pipes that connect them to the existing system. These improvements would help supply water to support future residential and employment growth in Bolton.

This planning work is being completed through a Municipal Class Environmental Assessment (EA) which is a provincially regulated process that helps identify the best solution while considering the environment, technical requirements, costs, and community input.

Background

This study is part of Peel’s Flow | South Caledon Program, a new program-based approach that groups multiple projects within a broad geographic area into large, multiyear construction programs, that advance several water and wastewater projects to support growth in southern Caledon.

Peel’s Flow | South Caledon Program is one of 2 major regional infrastructure programs designed to meet current needs and support long term growth.

Together, these investments help ensure new development can move forward responsibly and sustainably, while maintaining safe, reliable service.

This MCEA study builds on the previous planning work completed under the Bolton Water and Wastewater Capacity Improvements Schedule ‘C’ MCEA.

It also uses updated growth forecasts to the year 2051, developed with local municipalities, and considers new provincial housing targets introduced through Bill 23.

Pressure zones are a standard water system planning tool used to manage water pressure across different elevations and neighbourhoods, and they do not affect drinking water quality.

As part of this study, Peel Region will confirm how future water service should be provided in Bolton, including areas that will rely on new water pressure zones—specifically Pressure Zones 7B and 7E.

Process

This study will follow the Schedule “C” Municipal Class EA process, which includes:

• Phase 1: Identify the study problem and/or opportunities.
• Phase 2: Evaluate and select preferred storage locations and long-term water servicing strategies.
• Phase 3: Evaluate and select preferred design alternatives for the servicing strategies including location, alignments, siting, design, and construction timing.
• Phase 4: Present study recommendations in an Environmental Study Report (ESR) for public review.
• Phase 5: Complete study and implement recommendations.

Public consultation is an important part of the Municipal Class EA process. Public Information Centres (PICs) will be held to present the findings of the Class EA and to provide the public with the opportunity to give feedback to the project team.

Public engagement throughout the project is key to ensure that decisions made reflect and support the community needs.

What this means for you

• This is a planning study to prepare for future construction.
• Construction will not take place at this stage, and no final decision has been made.
• Public input will help inform the recommended solution.

Project timeline

The Bolton Zone 7 Water Elevated Storage and Transmission Main Class EA was started in March 2026.

The study will proceed through the Municipal Class EA process, including public consultation and development of recommended infrastructure solutions.

Updates and engagement opportunities will be posted on this webpage as they become available.

Contact information

To be added to the mailing list or to receive further information about the project, contact:

Jared Acosta
Project Manager, Environmental Assessments and Studies
Water and Wastewater Infrastructure Planning, Partnerships and Compliance Division
Peel Region