The respondent was an owner or operator of the ice manufacturing facility where anhydrous ammonia is used in the manufacturing of ice. Anhydrous ammonia, CAS #7664-41-7, has a reportable quantity of 100 pounds, as indicated in 40 C.F.R. Part 355, Appendix A. On July 27, 2023, at or about 4:34 a.m. CDT, a release of anhydrous ammonia from the Respondent’s Facility occurred. It was later determined that approximately 6,000 pounds of anhydrous ammonia was emitted into the air during the Release.
Respondent first learned of the Release on July 27, 2023, at approximately 4:34 a.m. CDT, when ammonia odors were detected. The Chicago Fire Department arrived at the Facility and began responding to the Release at this time.
The Release required notice under Section 103(a) of CERCLA, 42 U.S.C. § 9603(a), and Section 304(a) of EPCRA, 42 U.S.C. § 11004(a).