Geochemical Data Package for Performance Assessment Calculations Related to the Savannah River Site

Early Guidance for Assigning Distribution Parameters to Geochemical Input Terms to Stochastic Transport Models

“…The range and distribution of solubility and Kd values based on the above guidance and the mean values provided in Kaplan (2006) are provided in Appendix B. This guidance for stochastic modeling will provide a probabilistic estimate of the range of risk that buried waste may pose.…”

“…value (mL/g) +/-value (mL/g) +/-value (mL/g) +/- Standard error of skewness approximated by sqrt(6/n) and standard error of kurtosis approximated by sqrt(24/n), where n equals the count Kaplan (2006). "fe" = uncertainty factor, defined in equations 1 and 2.…”

“…"fe" = uncertainty factor, defined in equations 1 and 2. Kaplan (2006). "fe" = uncertainty factor, defined in equations 1 and 2.…”

Unreviewed Disposal Question Evaluation: Center Slit Trenches One Through Five Operational Covers Reanalysis

“…The following key inputs and assumptions for this Slit Trenches 1 through 5 study supplement all other key inputs and assumptions presented in the 2008 PA (WSRC, 2008), the 2008 SA (Collard and Hamm, 2008), 2010 study (Collard et al, 2011), and the Closure Plan (Phifer et al, 2009): The base case performance calculations are based on operational covers becoming operative on September 30, 2011. This cover was assumed to extend over SLIT1, SLIT2, SLIT3, and SLIT4.…”

“…For the portion of SLIT2-Unit1 containing M-Area Glass, dynamic compaction could potentially crack the glass waste form leading to a significant increase in surface area thus increasing mass transfer releases. This assumption is copied from the 2009 Closure Plan (Phifer et al, 2009). …”