(August 15, 2018, 2:23 PM EDT) -- ANN ARBOR, Mich. — The engineering firm that provided consulting services to the city of Flint, Mich., with regard to its decision to get its drinking water supply from the Flint River, which led to the lead-contaminated water crisis, on Aug. 14 filed an answer in Michigan federal court denying all allegations against it and asserting 18 affirmative defenses that the claims against it are barred by contributory fault (In re Flint Water Cases [Luke Waid, et al. v. Richard D. Snyder, et al.], No. 16-10444, E.D. Mich.)....