Spring Celebration

James R. Hunt, Ph.D.

hunt@ce.berkeley.edu

Research Translation: Scaling between the Laboratory and the Field

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

Emplaced Brines as a Long-Term Source

1988 Hinkley, CA Cr (VI) Plume

Groundwater Monitoring Record

0.0

1.0

2.0

3.0

4.0

5.0

D-93 D-95 D-97 D-99 D-01 D-03

Date

To

tal

Cr

[m

g/L

]

MW-11B

MW-15

2002 Hinkley, CA Cr (VI) Plume

Desirable Site Characteristics

• Long term remediation (>10 years)

• Rich data sets on• Site characterization• Flow field• Tracer monitoring• Contaminant and byproduct monitoring

• Interested stakeholders

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.