Extent of chromium contamination beneath the 60s pits in the Chemical Waste Landfill at Sandia National Laboratories, Albuquerque, New Mexico

Plume trademark and SitePlanner trademark were used to analyze the extent of chromium contamination beneath the 60s pits in the Chemical Waste Landfill at Sandia National Laboratories. On the basis of Plume trademark's analysis with currently available sampling and the proper locations for that sampling. Finally, a retrospective study was conducted for the site that evaluated the potential for cost savings if the characterization effort had followed an adaptive sampling program approach. Included in this retrospective study was an analysis of the impacts that spatial autocorrelation, soft information, and alternative sampling program goals have on sampling program progress. The conclusion is that by relying on an adaptive sampling program approach at the 60s pits, and leveraging the little soft information that is available for this location, a significant gain in information could have been realized for the same number of bores