The Trump administration has removed a major roadblock to plans by a Santa Monica company to pump ancient groundwater from below the Mojave Desert and sell it to urban areas of Southern California. The federal Bureau of Land Management has rescinded a 2015 administrative finding that Cadiz, Inc. needed to obtain a federal right of way permit and thus had to complete comprehensive environmental studies before it could build a water pipeline within 43 miles of railroad right of way owned by the Arizona & California Railroad.