Canadian Fresh Waters Requiring Ballast Water Management Measures

Polygon data identifies Canadian fresh waters where vessels must exchange or treat ballast water before release, as per Transport Canada regulations. The dataset covers specific ports and waterways including the Great Lakes Basin, Fraser River, and Saguenay River. It is intended for informational purposes and not for navigation or legal use.

Use Cases

• Analyze spatial coverage of ballast water management zones, such as the Great Lakes Basin and Fraser River ports, for environmental compliance planning.
• Map regulatory boundaries for ports like Kitimat and Stewart to support maritime operational risk assessments.
• Identify waters upstream of defined points, such as L’Anse-Creuse on the Saguenay River, for targeted ecological impact studies.

Strengths

• Geospatial polygons provide precise boundaries for multiple designated areas, including seven major water systems.
• Data is maintained by Transport Canada, the authoritative national regulatory body for marine transportation.
• Last updated in March 2026, indicating recent maintenance.

Limitations

• The dataset lacks quantitative attributes like row or column counts, limiting analytical depth.
• Polygons are intended for illustration only and are not suitable for precise legal or navigational applications.
• Specific data collection methodology and temporal coverage details are not provided.

Provenance

Source

Transport Canada

Collection Method

Regulatory designation for ballast water management under the Ballast Water Regulations.

Freshness

Last updated 2026-03-24.

Geography

Canadian fresh waters including the Great Lakes Basin, Fraser River, Saguenay River, St. Lawrence River, Port of Kitimat, Port of Stewart, and Happy Valley-Goose Bay.