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Commencement of aquatic field studies

TC Energy will start studying the aquatic environment this fall in the areas surrounding the proposed Pumped Storage Project location. We will be gathering data on Georgian Bay’s fish, ecosystem and water quality to help guide ongoing Project design and feasibility studies that will eventually feed into formal environmental assessment processes, should the Project progress.

  • When: The first phase will start during the week of September 8, 2020, for approximately three to four weeks. There will be a second, three-week phase later in the fall. Hours of work will be 7 a.m. to 7 p.m. seven days a week when conditions are favourable.
  • Where: In Georgian Bay, in an area extending approximately two km around the proposed Project location at the Canadian Army’s 4th Canadian Division Training Centre, near Meaford.
  • What to expect: One to three boats travelling slowly, back and forth, and repeatedly in the area.

Safety is TC Energy’s number one value and our main concern is for all our employees, their families and the communities surrounding our footprint who are impacted by the COVID-19 pandemic. TC Energy and our contractors are committed to adhering to public health guidance, as well as internal safe work practices and protocols, to keep our workers and neighbours safe.

Frequently Asked Questions

North South Consultants, working for ERM Consultants, have been hired on behalf of TC Energy to conduct aquatic studies.

The aquatics work is being conducted under permit issued by the Ontario Ministry of Natural Resources and Forests (MNRF) and in compliance with MNRF protocols. In addition, the project is officially registered with the Ministry of Environment, Conservation and Parks (MECP) in relation to the MNRF permit.

The studies need to extend beyond the project area to fully understand the broader aquatic environment and any potential impacts the project could have. This is why the study area extends beyond the limits of the DND hazard zone.


New Regional Economic Study!

Immense economic benefits

A new Regional Economic Study by ERM Consultants Canada Ltd., a third-party consultant with expertise in socio-economic assessment, shows the TC Energy Pumped Storage Project in southern Ontario would have immense economic benefits locally, regionally and provincially.

The Regional Study Area (RSA) includes Bruce, Grey and Simcoe Counties in Southern Ontario.

View and download the ERM Regional Economic Study

A climate change initiative

TC Energy retained Navigant to perform an economic analysis of the proposed Pumped Storage Project with two focus areas:

  1. Assess the potential impact of the project on the cost of electricity for Ontario ratepayers.
  2. Quantify the potential CO2 emissions reductions for the electricity sector attributable to the project.

The Navigant team completed a rigorous economic analysis and simulation of the Ontario electricity market, calculating the ratepayer and CO2 emissions impacts of the project by running simulations with and without the project.

View and download report
View and download infographic

$750 Million

spent on labour, equipment and materials

$152 Million

in provincial tax revenue for Ontario

$299 Million

in Gross Domestic Product (GDP)

Feasibility Assessments

TC Energy is currently conducting a number of preliminary field studies at the proposed project site to support the feasibility assessment. These studies will help provide insight for TC Energy, the Department of National Defence (DND) and the community as to whether 4th CDTC is a feasible location for a proposed pumped storage facility from an engineering and environmental perspective.

The following provides an overview of the specific feasibility assessments that are currently underway and how these studies will help inform TC Energy’s assessment of the project site.

Feasability Assessments What it studies How it's studied How it informs preliminary project planning
Unmanned Aerial Vehicle (UAV) LIDAR Survey Topographic conditions/physical features of the project site area. A drone is mounted with a LIDAR sensor and flown across the project site area. Assesses and supports the design of the reservoir, penstocks, powerhouse, intake and discharge structures.
Bathymetry Survey

Underwater depth of Georgian Bay lakebed.

A multibeam echosounder (a type of sonar) is mounted to a boat and pings a beam of sound to the lake floor.

Assesses and supports the design of the intake and discharge structures and provides inputs to 3D hydraulic modelling, which studies water flow in and out of the lake and water turbidity.

Sediment Sampling

Lakebed characteristics such as sediment texture, consistency and smell.

A hand-operated dredge sampler is dropped to the lakebed from a boat. Sediments are then sent to a laboratory for testing.

Supports the design of the intake and discharge structures, provides inputs to 3D hydraulic modelling, which studies water flow in and out of the lake and water turbidity.

Geotechnical Drilling

Characterizes the overburden materials, bedrock elevations and quality of bedrock.  Also establishes groundwater levels.

Boreholes are drilled at various depths into the soil and bedrock with a drill rig.

Supports the design of the reservoir, penstocks and powerhouse by determining what the ground is made of and its characteristics.