Mealey's (October 19, 2015, 9:42 AM EDT) -- HATTIESBURG, Miss. — Forty-nine plaintiffs claiming that contamination from a site formerly operated by Hercules Inc. has migrated onto their properties, resulting in diminished property values and exposure to hazardous materials, must submit an affidavit from an expert demonstrating a contamination migration pathway between the site and the property, as well as laboratory analysis confirming the existence of constituents on the property, a federal magistrate judge in Mississippi ruled Oct. 16 in granting the defendant company’s request for the entry of a Lone Pine case management order (Willie M. Ashford, et al. v. Hercules Inc., No. 15cv27-KS-MTP, S.D. Miss.; 2015 U.S. Dist. LEXIS 141011)....