State sport fish advisory for San Luis Obispo County’s Oso Flaco Lake. Oso Flaco Lake is part of the Oceano Dunes State Vehicular Recreation Area, a California State Park. More than 50 fish from the lake were collected and analyzed for the presence of contaminants. The pesticides the fish were tested for—chlordanes, DDTs, and dieldrin—are legacy chemicals that have been prohibited for many years due to their high toxicity and persistence in the environment.
Aug 13, 2013