Progress
The initiative has evolved from a project with limited scopes to identify key needs at the Oak Ridge site. The time line of the early work scope (2008-2010) is shown below. Current progress is summarized in the following areas:
2010
- January - March: Laboratory sorption focused studies.
- March - June: Field soil-vapor detection work
2009
- January - February: Baseline studies/sampling prior to flow reduction.
- February-July: Laboratory stannous chloride testing; Numerical modeling of flow reduction
- August: Stannous chloride field test completed
- September - October: Data analysis, mercury summit meeting> at Vanderbilt University
- November - December: PI meeting and Evaluation of new options for reducing mercury release at the Y-12 National Security Complex.
2008
- January: Technical Assistance Team Workshop, Recommendations to address technical uncertainties in the mitigation and remediation of mercury contamination at the Y-12 Plant, Oak Ridge Tennessee.
- June: New project work start; Technical working group formed
- June-August: Report on Diversion of flow augmentation to reduce mercury input to East Fork Poplar Creek at the Y-12 security complex.
- November: Stannous chloride test demonstration
- December: Tennessee Department of Environment and Conservation (TDEC) approves reduction in minimum flow requirements/ Controlling Mercury release from source zones to surface water: Initial results from pilot tests at the Y-12 National Security Complex