Denka Loses Bid To Block EPA’s Use Of IRIS Value In Enforcement Suit

A federal judge is rejecting Denka Performance Elastomer’s (DPE) efforts to block EPA’s use of a conservative Integrated Risk Information System (IRIS) value as the basis for a novel enforcement action, opening the door to a precedent on the use of such values that industry groups charge could have a “substantial impact” on many other businesses. In an Aug. 30 order in United States. v. DPE and Dupont Specialty Products USA , Judge Carl Barbier of the U.S. District Court...