Mealey's (May 11, 2018, 12:33 PM EDT) -- GREENVILLE, Miss. — Residents who allege that a group of companies are liable for groundwater contamination on May 10 filed a brief in Mississippi federal court contending that it should exclude all reports and opinions of the EPA Region 4 that are included in the companies’ disclosure of expert witnesses (Joe E. Sledge, et al. v. Meritor Inc., et al., No. 16-CV-053, N.D. Miss.)....