APRIL 8, 2025 - SETTLEMENT AGREEMENT
EPA conducted a removal assessment at the Site in 2007 and an expanded investigation at the Site in 2009. These investigations detected numerous hazardous substances, including arsenic, lead, and cadmium, in soil and groundwater at the Site.
The Site was placed on the National Priorities List (NPL) on September 16, 2011.
Effective May 1, 2012, all downstream and midstream business operations of ConocoPhillips were transferred via a tax-free spinoff to Settling Party, which was separately incorporated in Delaware in November 2011. After the spinoff, Settling Party informed EPA
that, solely as between Settling Party and ConocoPhillips, Settling Party was the relevant corporate entity for any further notices or communications with respect to the Site.
Between 2013 and 2018, Settling Party, Horton, and the Estate of Josephine Horton (a prior owner of the Site property) conducted a remedial investigation/feasibility study (RI/FS) at the Site pursuant to an Administrative Settlement Agreement and Order on Consent
with EPA. The RI identified lead, arsenic, cadmium, PCBs, SVOCs, and other hazardous substances in the soil, groundwater, and sediment.
In 2016, contractors for Settling Party, Horton, and the Estate completed the installation of a cofferdam to address EPA?s concerns regarding the migration of contaminants from the boat slip sediments to surface water during the FS. This work, as well as the RI/FS, was performed under t