(June 15, 2020, 8:51 AM EDT) -- SAN FRANCISCO — The U.S. Environmental Protection Agency on June 11 moved in California federal court to exclude the testimony of a witness for a group that seeks to compel the EPA to ban the introduction of “fluoridation chemicals” into drinking water, arguing that the expert’s testimony is beyond the scope of her disclosures according to federal procedural rules (Food & Water Watch Inc., et al. v. United States Environmental Protection Agency, et al., No. 17-2162, N.D. Calif.)....