Los Angeles County beaches were deemed the most polluted in California by Heal the Bay’s 19th Annual Beach Report Card last week. Six out of the 10 beaches on the list ““ including Santa Monica Municipal Pier and Surfrider Beach at Malibu Creek ““ are located in L.A. County.

Mike Grimmer, an environmental data analyst at the nonprofit organization Heal the Bay, said this report, although seemingly bleak, does not mean beachgoers cannot enjoy their summer in the water. As long as precautions are taken, going for a swim will likely be safe.