Legacy of hazardous waste is topic at Feb. 14 Café Scientifique

by John McIntosh on February 12, 2012

Superfund is EPA’s program to identify, investigate and clean up uncontrolled or abandoned hazardous waste sites in the United States. In the Silicon Valley alone there are 25 Superfund sites, each with a long history of soil and groundwater contamination and ongoing remedial activity.

At Café Scientifique on Feb. 14, Alana Lee and Katherine Baylor will provide an overview of the Superfund and other hazardous waste programs at EPA Region 9. From there, they will review the challenges faced with cleaning up the legacy groundwater contamination sites in Silicon Valley that resulted from the release of chlorinated solvents into the subsurface during the early days of the high-tech industry. They will also discuss an emerging exposure pathway of concern: the migration of volatile chemicals from contaminated groundwater and soil into the indoor air environment.

Alana Lee is a Project Manager for EPA Region 9’s Superfund Division for over 13 years. For the past 11 years, she has been managing several Superfund sites in Mountain View and Moffett Field, California, where regional groundwater contamination is being actively cleaned up and indoor air investigations are being conducted to evaluate the subsurface vapor intrusion pathway.

Katherine Baylor is a hydrogeologist at the U.S. Environmental Protection Agency Pacific Southwest Region in San Francisco. She provides technical support to EPA colleagues evaluating and cleaning up hazardous waste sites throughout California, Arizona, Nevada, Hawaii, and the Pacific Islands. In addition, she has over 20 years of experience sampling water, soil, air, and biota for environmental contaminants.

Café Scientifique is hosted by SRI Menlo Park (Middlefield Road at Ringwood Ave.) and open to all free of charge. Doors open at 5:15 pm; the lecture begins at 6:00 pm.

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