Santa Barbara Channelkeeper and the Environmental Defense Center have filed a federal lawsuit against the owner of Mosler Rock-Ojai Quarry, alleging he consistently failed to prevent pollutants, like sediment, from entering the Lower North Fork of Matilija Creek nearby, resulting in a damaged ecosystem for the endangered southern steelhead trout. Owner Larry Mosler’s water consultant maintains Mosler is in compliance with the law because he is working to remedy problems. Channelkeeper wants to settle, a request the financially strapped Mosler called “extortion.”