Ansul, Inc. v. Employers Insurance

¶ 1. Between October 1969 and February 1980, Certain Underwriters at Lloyd's & London Market Insurance Companies ("Lloyd's") supplied Ansul, Inc. and Tyco International (US), Inc. ("Ansul") with nine excess policies with varying coverage dates. From the 1950s to 1977, Ansul caused severe environmental damage by contaminating groundwater near the Menominee River with substantial quantities of arsenic. The Wisconsin Department of Natural Resources ("DNR") became involved in the early 1970s, and in 1981 ordered Ansul to construct a groundwater treatment system that operated until 1986, at a cost…