Water Activities Safe in San Luis Reservoir: Algal Bloom Advisory Removed


Map of San Luis Reservoir
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SACRAMENTO – The Department of Water Resources (DWR) today removed the algal bloom “caution” advisory for San Luis Reservoir, which means it is safe to resume water activities without restrictions. The California Department of Parks and Recreation is removing signage at the Merced County reservoir.   

From late June to September 15, a “danger” advisory was in effect prohibiting water activities in the reservoir. The advisory was downgraded to a “warning” in mid-September, and further downgraded  to “caution” on Nov. 3. With cooler weather conditions prevailing, DWR does not anticipate future advisories in the immediate months ahead.

For more information on algal blooms, visit:  

State Water Resources Control Board – California CyanoHAB Network:

CA Office of Environmental Health Hazard Assessment: Information on Microcystin

US Environmental Protection Agency: CyanoHAB website


Every Californian should take steps to conserve water. Find out how at SaveOurWater.com.