Because the Trump Administration is unlikely to approve them, California believes it has no choice but to abandon its groundbreaking rules for zero-emission trucks and cleaner locomotives.
Two years ago, the cost of the dam project—required for earthquake protection and improved flood control for the Coyote Creek watershed—was estimated at $648 million.
The petition, which was filed with a nationwide coalition of community groups, follows a study commissioned by Santa Clara County that found aviation gasoline emissions increase blood lead levels in children.