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10 most polluted beaches in California

<div class="meta image-caption"><div class="origin-logo origin-image ap"><span>AP</span></div><span class="caption-text">#1 -- Avalon Harbor Beach on Catalina Island &#40;Los Angeles County&#41; --  According to Heal the Bay&#39;s 20th annual Beach Report Card, water quality at Los Angeles County beaches improved significantly over the past year, with nearly 80 percent of beaches receiving high marks. But the county still had five of the state&#39;s lowest-ranked beaches, with Avalon Beach in Catalina maintaining its rank as the most polluted beach in the state. This is the ninth out of the last 11 years that Avalon has been on the Bummer list. Of the five monitoring locations at this beach, none received better than a D grade.&#160;|&#160;Interactive map of polluted beaches  (Reed Saxon)</span></div>
June 1, 2010 4:24:36 PM PDT