Voluntary Lake Monitoring Network Trophic Status 2004-2024

Trophic state classifications for lakes in Québec's Voluntary Monitoring Network from 2004 to 2024. The data categorizes biological productivity levels from ultra-oligotrophic to hyper-eutrophic. Records are compiled from a volunteer network managed by the Government and Municipalities of Québec.

Use Cases

• Map lake trophic state classifications across Québec to identify regional water quality trends
• Analyze temporal shifts in trophic levels from ultra-oligotrophic to hyper-eutrophic over the 20-year monitoring period
• Correlate volunteer-reported trophic status with other environmental datasets for watershed management

Strengths

• Data spans a 20-year time range from 2004 to 2024, providing longitudinal insight
• Compiled by the authoritative Government and Municipalities of Québec
• Available in multiple formats including CSV, GEOJSON, and ESRI REST for flexible analysis

Limitations

• Unknown sample size and row count limits statistical confidence
• Data relies on volunteer monitoring networks, which may introduce collection inconsistencies
• Automated translation of metadata may obscure original context or details

Provenance

Source

Government and Municipalities of Québec

Collection Method

Compilation of data acquired through the Voluntary Lake Monitoring Network (RSVL)

Time Range

2004 to 2024

Freshness

Last updated March 25, 2026.

Geography

Lakes in Québec, Canada