Public Comment Period on Intent to Make a Determination
Rockpoint Gas Storage Caisson Extension – Canadian Forces Base Suffield

July 21, 2025 — The Department of National Defence must decide whether the proposed project is likely to cause significant adverse environmental effects.

To help inform this decision, the Department of National Defence is inviting comments from the public on the project and its potential effects on the environment. All comments received will be considered public. For more information, individuals should consult the Privacy Notice on the Registry website.

Written comments must be submitted by August 9, 2025 to:
Mr. Danny Laganiere, Base Environmental Officer
Mailing Address:  CFB Suffield, Box 6000 St Main, Medicine Hat
Alberta, Canada, T1A 8K8
E-mail:  Danny.Laganiere@forces.gc.ca

or
Stephen Comstock, Coordinator of Operations & Quality Assurance/Quality Control
Mailing Address:  Rockpoint Gas Storage 400 – 607 8th Ave SW, Calgary
Alberta, Canada, T2P 0A7
E-mail:  Stephen.comstock@rockpointgs.com

The Proposed Project

The Department of National Defence (DND) is proposing a project. There are currently two caissons for the 14" pipeline sender, leaving the sender encased in soil with no room for an inspection tool to be loaded. The caissons require expansion to facilitate the installation of a properly sized sender barrel and allow safe loading of inspection tools. This will require excavating between the two existing caissons and merging them into one larger caisson, as well as adding an extension to the caisson for a tool loading area.