Groundwater and Surface Water Assessment

SSP&A developed a groundwater flow model covering the western portion of the Washington Water Resources Inventory Area 1 in Whatcom County.

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.

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.

In support of litigation, SSP&A evaluated the impacts to groundwater and surface water from a wastewater treatment system and septic leach field at a commercial complex in Harwich, Massachusetts.

To address concerns regarding groundwater/surface-water interactions and potential Rio Grande Project Supply impacts, SSP&A provided expert hydrogeologic support in the evaluation of the Tulla Resources application and developed possible strategies for offsetting any potential impacts.

SSP&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.