Clark County Public Health is advising against all recreation at Vancouver Lake because of elevated toxin levels in the water.
Water samples taken Monday revealed that cyanotoxin levels at the lake are above the threshold recommended by the state Department of Health. That has prompted Public Health to upgrade its health advisory to danger.
The cyanobacteria bloom continues to cover most of the lake, according to a Public Health news release.
Danger signs are posted at the swim beach and other public access points to the lake. Public Health is advising against all recreating on the lake, including swimming, kayaking, paddle boarding, canoeing, water skiing and fishing. Pets should be kept out of the water, as cyanotoxins can be deadly to small animals.