Big Bear Lake, CA, January 3, 2013 - In a major development with an aquatic invasive species the Big Bear Municipal Water District (MWD) has been on guard against, quagga and zebra mussels have been found for the first time in a Southern California water body that does not receive water from the Colorado River. The mussels were discovered on the shoreline of Lake Piru in … [Read more...] about Mussels Invade Ventura County