For several years, Mercury Marine has worked with the Wisconsin Department of Natural Resources (WDNR) and, more recently, the U.S. Environmental Protection Agency (EPA), to study and remediate Cedar Creek in Cedarburg, Wisconsin.
Sediments and associated floodplain soils in certain parts of the Creek contain PCBs, or polychlorinated biphenyls. PCBs were widely used by industries in a variety of manufacturing processes before their use was banned in the 1970s. As was common practice at the time, Mercury Marine purchased and used hydraulic fluids containing PCBs as a fire retardant to protect employees at our former plant on St. John Avenue in Cedarburg. At some point, fluids containing PCBs entered municipal storm sewers from the hydraulic plant, which emptied into the Creek and flowed downstream.
Mercury Marine already has performed remediation activities in two sections of the Creek and completed a thorough remediation of its former manufacturing plant. Now, Mercury Marine is evaluating potential additional activities that may be performed along Cedar Creek. All of Mercury Marine's studies are performed with the oversight and approval of the EPA.