SSP&A was initially retained to provide expert review and evaluation of hydrologic, hydrogeologic, and geochemical conditions at the former Leviathan Mine Site, and to assess the sources of impacts of mining-related residues on groundwater and surface water.
Hyde Park Landfill – Remedial Action Assessment and Modeling
The Hyde Park Landfill is a hazardous waste landfill where approximately 20,000 tons of chlorinated compounds (primarily DNAPLs) were disposed in a fractured rock setting.
EPA Region 5 Hydrogeological Synthesis and Numerical Modeling Support
Multiple Sites in EPA Region 5: Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin
PFAS Contamination in the Alabama River System
SSP&A provided expert services for four legal matters related to PFAS contamination in the Alabama River system in Georgia and Alabama.
West Lake Landfill Site
SSP&A was retained to estimate and depict the lateral extent and the volume of radiologically-impacted material (RIM) within Areas 1 and 2 of Operable Unit 1 (OU-1) at West Lake Landfill Site
Gold King Mine Release
SSP&A provided expert services for the State of New Mexico, New Mexico Environment Department (NMED), and members of the Navajo Nation in lawsuits related to a mine blowout at the Gold King Mine in Silverton, Colorado.
Lane Street Ground Water Contamination Site
SSP&A was retained by the U.S. Environmental Protection Agency (EPA) Region 5 to evaluate groundwater conditions at the site and to collect environmental media to support the microcosm studies.
State of Minnesota vs. 3M Company
The State of Minnesota selected SSP&A to provide expert services for a natural resources damage lawsuit related to impacts to groundwater and surface water from releases of PFAS from the 3M manufacturing facility in Cottage Grove, MN.
