(April 23, 2007) The U.S. Environmental Protection Agency (Region 9) has ordered the Navy to comply with the Safe Drinking Water Act at its naval auxiliary landing field on San Clemente Island, located off the coast of San Diego, California. The order requires the Navy to reduce levels of total trihalomethanes - byproducts of the water disinfection process – in the drinking water system that serves approximately 700 people on the island.