Two aspects of this technology are the evaluation of water saturation and chemical transport.
Soil moisture is a critical variable influencing chemical transport in landfills.
Field experiments have focused on evaluation of water saturation and chemical transport monitoring technologies. A comparison of the two techniques is desirable to determine if the data collected by the TDR technique is a valid replacement for the more labor intensive but reliable and accepted neutron probe method. Chemical transport is being evaluated through the detection of contaminant and chemical tracers. Application of tagged tracers allows the evaluation of both barrier system effectiveness and potential contaminant transport pathways or imminent arrival. Two field plots constructed of homogeneous crushed Bandelier tuff were used for this study.