2. Spring Celebration James R. Hunt, Ph.D. hunt@ce.berkeley.edu Research Translation: Scaling between the Laboratory and the Field

3. Dense Brine Transport in Groundwater (perchlorate, leachates, remediation fluids)

4. Emplaced Brines as a Long-Term Source

5. 1988 Hinkley, CA Cr (VI) Plume

6. Groundwater Monitoring Record

7. 2002 Hinkley, CA Cr (VI) Plume

8. Desirable Site Characteristics Long term remediation (>10 years) Rich data sets on Site characterization Flow field Tracer monitoring Contaminant and byproduct monitoring Interested stakeholders

9. References: CH2MHill (2003) First Semiannual Monitoring Report Year 2003, Groundwater Monitoring and Remediation Project PG&E Compressor Station, Hinkley, California, prepared for PG&E, July 2003, Oakland California. CH2MHill (2005) First Semiannual Monitoring Report Year 2005 Groundwater Montoring and Remediation Project, PG&E Compressor Station, Hinkley, California, prepared for PG&E, August, 2005, Oakland, California. T. C. Flowers and J. R. Hunt (2000) Long-term release of perchlorate as a potential source of groundwater contamination, Perchlorate in the Environment, E. T. Urbansky, ed., Kluwer Academic / Plenum Publishers, New York, pp 177-188. T. C. Flowers and J. R. Hunt (accepted) Viscous and gravitational contributions to mixing during vertical brine transport in water-saturated porous media, Water Resources Research.