Mayo Lake Water Levels
Over a 25-year average, about 90% of the electricity Yukon Energy produces comes from renewable resources, primarily hydro. Yukon Energy owns three hydro facilities that produce electricity, but we don’t own the water that passes through the facilities to generate electricity. We have water use licences from the Yukon Water Board that allows us to use the water.
As part of our water use licences, there are several rules, or “conditions”, that we must follow, including managing the water supply level. For each lake, there are upper and lower supply level limits we must follow, noted on each chart below. Yukon Energy watches the water levels of the lakes that feed its hydro facilities closely. Water level data is also used for community-based monitoring and implementation of the Monitoring and Adaptive Management Plans in place for each facility.
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Current Conditions
Updated: 10 minutes ago
Notes from Yukon Energy:
On September 29, EDI will be completing beaver lodge surveys on Mayo Lake. This will involve low-flying helicopters.
EDI also recently installed equipment at the Roop Lakes to monitor water levels. This data will be used to support other biophysical and physical monitoring programs in the area. If you notice this equipment is damaged or if you have questions, please contact ajmacphail@edynamics.com.
Ice monitoring
As part of our Monitoring and Adaptive Management Plan, Yukon Energy has hired a contractor (NHC) to conduct ice monitoring from January to March, 2026. A summary of those results are available in the 'related downloads' section below.
Disclaimer: Ice conditions change rapidly. These measurements reflect conditions only at the time they were collected. Ice conditions are not the same across the lake, currents, inlets, pressure cracks and changing temperatures can affect thickness quickly even within short distances. Please continue to travel carefully, check as you go and make decisions based on current conditions in front of you.
Past Month
Past 12 Months
Annual Comparison
2023
2024
2025
2026
Upper Limit
Lower Limit
Extracted from Environment and Climate Change Canada's Real-time and Historical Hydrometric Data web site on October 11, 2026 at 07:00.
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