In 1970, the National Institute of Standards and Technology (NIST) implemented the most ambitious and
comprehensive long-term corrosion behavior test to date for stainless steels in soil environments. Over thirty
years later, one of the six test sites was targeted to research subsurface contamination and transport processes in
the vadose and saturated zones. This research directly applies to environmental management operational
corrosion issues and long-term stewardship scientific needs for understanding the behavior of waste forms and
their near-field contaminant transport of chemical and radiological contaminants at nuclear disposal sites. This
paper briefly describes the ongoing research and the corrosion analysis results of the stainless steel plate
specimens recovered from the partial recovery of the first test site.