Reston, VA

Reston Association will host a meeting later this month to discuss the environmental health of Lake Thoreau.

The meeting announcement follows a major algae bloom at the lake, which prompted RA to urge residents to avoid contact with the water.

RA will meet virtually on Aug. 31 at 6:30 p.m. via Zoom to discuss the overall health of the lake. RA CEO Hank Lynch and COO Larry Butler will discuss recent test results and the longterm plan for managing the bloom.

RA’s longtime vendor, Aquatic Environment Consultants, will present data on the treatment of the lake and data collection. The association’s Environmental Advisory Committee chair Doug Britt will also discuss issues related to the lake.

RA may also consider exploring how future management practices will impact the 2021 budget and future budgets.

Although lab results do not indicate the algae bloom contains toxic levels of microsystins, the algal species does have the ability to produce toxins if concentrations are high enough.

RA expects the dying Hydrilla plant — which the association treated in late July — will sink to the bottom of the lake as it dies over the next several weeks.

Photo by Jeannine Santoro

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