New report shows Central Coast beaches have some of the cleanest and dirtiest waters and last updated 2021-07-03 03:25:30-04 A new study shows the Central Coast has some of the cleanest beaches in the state, but also one of the dirtiest. An annual report released by Heal the Bay, a nonprofit tracking water quality, graded beaches along the Pacific Coast based on levels of fecal bacteria pollution. âIt's a big problem. [Fecal indicator bacteria] causes tens of thousands of people to get sick every year in California and it costs folks tens of millions of dollars in healthcare costs going to the doctor and the pharmacy,â said Luke Ginger, a water quality scientist with Heal the Bay.