Great Lakes Connecting Channels Water and Sediment Quality

Environment and Climate Change Canada collects water quality and suspended sediment data from five connecting channels of the Great Lakes: the St. Marys, St. Clair, Detroit, Niagara, and St. Lawrence Rivers. This monitoring establishes baseline status, tracks long-term trends, and assesses the effectiveness of management actions and compliance with sediment quality objectives. The dataset focuses on the unique hydrological system where these channels originate from the outflow of large, oligotrophic lakes.

Use Cases

• Establishing baseline water quality status for the Great Lakes connecting channels.
• Analyzing long-term trends in suspended sediment and other water quality parameters.
• Evaluating the effectiveness of pollution control and watershed management actions.
• Determining compliance with established sediment quality objectives.
• Identifying emerging water quality issues in a critical hydrological system.

Strengths

• Data is produced by a national environmental agency (Environment and Climate Change Canada), indicating authoritative collection methods.
• Explicitly designed for long-term trend analysis and compliance assessment, suggesting temporal depth.
• Covers a unique and geographically specific system of five major connecting channels.

Limitations

• Column names and data structure are unknown, limiting immediate usability.
• Row counts and dataset size are not provided in any source.
• Metadata shows a future 'last updated' date (2026-07-06), indicating a potential data entry error or system artifact.

Provenance

Source

Environment and Climate Change Canada

Collection Method

Monitoring and surveillance data collection from the connecting channels.

Time Range

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Freshness

2026-07-06 15:21:06.351148

Geography

The connecting channels of the North American Great Lakes: St. Marys River, St. Clair River (and Lake St. Clair), Detroit River, Niagara River, and St. Lawrence River.