New inspections in place after invasive mussels found
The first quagga in Castaic Lake was found by park visitor. It was dead but she says mostly likely had been recently alive. Over the next three weeks, DWR and California Department of Fish and Wildlife staff found decayed shells of three more dead quagga mussels along the shoreline. The discovery is problematic for a number of reasons. Castaic is a drinking water reservoir equipped with pumping machinery, pipelines and grates to catch debris.