(November 27, 2018, 1:40 PM EST) -- DENVER — The 3M Co. and other companies filed a brief in Colorado federal court on Nov. 19 arguing that the medical-monitoring claim asserted against them by residents who have sued the companies for groundwater contamination from chemicals in aqueous film forming foam (AFFF) should be dismissed (Gregory Bell, et al. v. The 3M Co., et al., Nos. 16-02351, 16-02394, 16-02352, D. Colo.)....