(July 17, 2023, 7:26 AM EDT) -- JACKSON, Miss. — An engineering firm that has been sued by residents in Mississippi federal court alleging that it bears responsibility for the contaminated water crisis in Jackson, has filed an answer denying the claims against it and asserting 46 affirmative defenses that include the argument that the plaintiffs fail to state a claim and the lawsuit should be dismissed pursuant to Federal Rule of Civil Procedure 12(b)(6)....