In accordance with the Denver Federal Center (DFC) Site-Wide RCRA Facility Investigation (RFI) Quality Assurance Project Plan and corresponding standard operating procedures, SSP&A provides field and QA/QC sampling, data validation, sample result screening, evaluation, and data management, and reporting at the DFC site.
Denver Federal Center Regulatory Compliance
2024-11-21T16:27:39+00:00SSP&A performed a detailed investigation that revealed contaminated soil remains at concentrations exceeding levels protective of residential/unrestricted use but are intertwined with subsurface utilities or in lenses that extend under buildings and roadways at the Denver Federal Center site.
Texas Eastern Natural Gas Compressor Stations, PCB Support
2024-11-21T17:16:11+00:00For over 10 years SSP&A consulted to the NYSDEC spills department, evaluating and simulating the fate and remediation of fuel spills.
Fate and Transport Modeling of Fuel Additives
2024-11-21T17:20:38+00:00For over 10 years SSP&A consulted to the NYSDEC spills department, evaluating and simulating the fate and remediation of fuel spills at multiple sites.
EPA Region 5 Hydrogeological Synthesis and Numerical Modeling Support
2024-11-21T17:33:12+00:00Multiple Sites in EPA Region 5: Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin
Hanford Site: Groundwater Modeling
2024-11-21T18:15:38+00:00The USDOE Hanford Site transitioned over decades from a Manhattan Project mission to environmental assessment and cleanup. SSP&A was initially engaged to assess groundwater conditions and develop and apply models to design, evaluate, and optimize groundwater remedies for CERCLA operable units across the Hanford Site.
OTIS AFB MMR Fate-and-Transport Analysis, Modeling, and Remedy Design
2024-11-21T18:22:54+00:00SSP&A developed and applied a 3D groundwater flow and contaminant transport model for the OTIS/MMR as part of remediation efforts at the site, and was subsequently retained to undertake wide-ranging data analysis, reporting, and remedy evaluation and optimization tasks.
Bannister Federal Complex
2024-11-25T22:15:30+00:00Historical operations at the Bannister Federal Complex had led to extensive contamination with chlorinated solvents, PCBs, hexavalent chromium, and petroleum hydrocarbons.
Hanford Natural Resources Damage Assessment Upwelling Study
2024-11-21T23:16:25+00:00SSP&A was retained to evaluate the locations, timing, and quantities of historical contaminant discharges to the Columbia River to support a potential Natural Resource Damage Assessment (NRDA) claim.