Soil Characterization and Remediation Background
Historical industrial activities resulted in soil and sediment contamination across the Paducah Gaseous Diffusion Plant (PGDP) and its environs.
The activities that caused the contamination, the extents of the contamination and soil contaminants vary widely across the PGDP industrial site and the DOE reservation.
Efforts to characterize and remediate PGDP soil contamination have been laborious, laboratory intensive, and costly.
The historically accepted approaches for characterizing soil and sediment contamination require:
- multiple field mobilizations to complete data collection,
- iterative periods of data assessment and planning, and
- extensive sample collection with expensive laboratory analyses to ensure that spatial representation of the contaminants is addressed and decision-making uncertainty is minimized.
Once contamination is characterized, the implementation and completion of soil and sediment remedial activities requires additional iterations of:
- analytical verification that the cleanup goals have been satisfied, and
- characterization of waste streams.
General methodologies have been developed to address the iterative nature, time and expense required to characterize, remediate, and verify attainment of cleanup goals using traditional sampling approaches. Argonne National Laboratory Environmental Sciences Division developed the Adaptive Sampling and Analysis Program (ASAP),
http://www.ead.anl.gov/ , and USEPA’s Office of Innovative Technology developed the TRIAD approach, http://www.triadcentral.org/. Both programs utilize systematic planning processes that exploit the capabilities of improved field detection technologies to characterize contamination, guide cleanup, verify attainment of cleanup goals, reduce decision-making and results uncertainties, and characterize waste during a single field mobilization.
PGDP ASAP, TRIAD, & Dynamic Workplans Projects Background Information