4 San Diego Beaches Among the Most Polluted in California

A list of California beaches with the most polluted water has four San Diego locations in the top 10, according to a report released by a Santa Monica environmental group. Heal the Bay’s Beach Report Card uses A to F grades to rate beaches based on water quality tests and frequency of sampling. Beaches are graded for summer and winter months and ranked accordingly. Topping the list of “Beach Bummers,” or beaches that scored the worst during the summer, was the Tijuana River Mouth, a marine conservation area in San Diego County that borders Mexico. Ranked sixth last year, the beach soared to first place due to sewage from the Tijuana River, which annually discharges tens of millions of gallons of untreated sewage into the ocean, the report said....