Mealey's (September 11, 2017, 11:31 AM EDT) -- SAN FRANCISCO — A company that takes raw landfill gas and purifies it into pipeline quality natural gas is asking the Ninth Circuit U.S. Court of Appeals to reverse a ruling by a district court judge that high velocity landfill gas was not an “external cause” of damage at the company’s plant, and therefore coverage under the company’s insurance policy was not available (Ingenco Holdings LLC, et al. v. Ace American Insurance Company, No. 16-35792, 9th Cir.)....