Lake Trevallyn
Water quality monitoring in Lake Trevallyn occurs over the summer months, recording the presence and abundance of blue-green algae during the peak recreational period. This provides an early warning to water authorities and the public on when the lake is safe for use. The data is used to understand the conditions that influence outbreaks and to inform management and mitigation strategies.
Quick Q&A
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The first recorded bloom in Lake Trevallyn occurred in the summer of 2007. During the 2008/09 summer, a small bloom occurred over a two-week period. Most years, blue-green algae numbers increase towards the end of summer.
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Water flows are a major controlling factor of blue-green algal blooms. High water flows during the preceding spring and summer may prevent the blooms from becoming established, as seen in the 2009/2010 summer.
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Algal blooms persist when water temperature continues to rise, promoting cell growth and surface concentration.
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All partners of the Lake Trevallyn algal bloom monitoring program are committed to a coordinated and clear communication approach in the event of an algal bloom in Lake Trevallyn. The community will be notified of any bloom event through the media as well as signage at Lake Trevallyn.