A harmful algal bloom has been spotted at the Vancouver Lake swim beach, according to Clark County Public Health.
Between Memorial Day and Labor Day, Public Health routinely monitors designated local swim beaches for bacterial contaminants and harmful algal blooms.
At its first inspection of Vancouver Lake on May 31, a Public Health team spotted the algal bloom. The team collected water samples to determine toxin levels. Samples have been sent to a lab, and results should be back later this week.
If the samples show elevated levels of cyanobacteria, also known as blue-green algae, then Public Health will issue a danger advisory to deter swimming and other recreational activities at the lake.