In 2004, RMC (Dukelow), working as a subcontractor to Cenibark International for CH2MHill, used robust regression methods to develop an equation for converting human operator estimates of residual waste left in single shell waste tanks after retrieval to estimates of the actual residual waste volumes. This equation was based upon qualification tests of the human operator with known volumes of simulated waste. The equation derived was accepted by the regulator, the Washington State Department of Ecology, for use by CH2MHill in establishing compliance with regulatory requirements

In 2007-2008, with Dukelow working as a PNNL employee for CH2MHill, the 2004 work was refined to support attempts to qualify additional human operators for the Closed Circuit Modeling System being used to estimate residual waste volumes in single shell tanks after retrieval. Additionally, on a separate contract for CH2MHill, Dukelow supported attempts to develop the use of photogrammetry to estimate residual waste volumes in single shell tanks.

In the summer of 2007, RMC (Dukelow), working as a subcontractor to Dana Engineering, was part of an international team investigating safety conditions in the Pasta de Conchos coal mine in the northern state of Coahuila in Mexico. The team was working for the Foro Cientifico y Tecnologico, the Mexican equivalent of the National Academy of Sciences. Its charge was to determine whether it was safe to restart efforts to recover the bodies of 63 miners lost in a 2006 explosion and fire in the mine.

In 2009, RMC (Dukelow) had two contracts with Washington River Protection Solutions, LLC. The first involved development of methods for constructing confidence intervals for the concentrations of chemical and radiological constituents in double shell tank waste and application of those methods to five tanks and about ten constituents each. The second involved an uncertainty analysis for the liquid displacement method of estimating residual waste volumes in single shell tanks.