(March 28, 2018, 1:01 PM EDT) -- DENVER — A group of Colorado residents on March 26 sued 3M Co. and the manufacturers of aqueous film-forming foam (AFFF) in Colorado federal court, contending that the companies are liable for contaminating drinking water and damaging the residents’ properties with AFFF, which is used in firefighting operations (Claudia Adams, et al. v. The 3M Company f/k/a Minnesota Mining & Manufacturing Co., et al., No. 18-705, D. Colo.)....