San Francisco Bay Superfund Site Since 1984, SSP&A has directed the investigation and remediation of the 1990 Bay Road Superfund site in East Palo Alto, California.

Hyde Park Landfill Groundwater Model SSP&A  developed a model of groundwater flow in the fractured rock where over 20,000 tons of chlorinated DNAPLs were released.

Long Island, New York MTBE Groundwater Modeling SSP&A developed groundwater models to evaluate the migration and remediation of more than 30 large plumes dominated by MtBE (Methyl tertiary-butyl ether) on Long Island, New York.

Hanford Nuclear Reservation Remediation Modeling SSP&A is part of a multi-firm team developing remedial alternatives and strategies for the RI/FS and post Record of Decision (ROD) activities. 

Republican River Basin Interstate Water Compact SSP&A assisted Kansas in quantifying the nature and magnitude of streamflow accretions and depletions from groundwater in the Republican River Basin as part of the Settlement terms of the Interstate Water Compact.

Middle Rio Grande Water Supply Study

For this water supply planning study, SSP&A quantified the inter-related groundwater and surface water supply and its variability, and provided a common basis for regional and New Mexico water planning activities.