Removal of Trichloroethylene

Paper Summary:

The paper discusses how scientists have discovered trichloroethylene (TCE) in the groundwater of Lodi, California and are debating a variety of methods to effectively remove this harmful chemical. The paper examines three ways to remove TCE from the ground water: soil vapor extraction, air sparging and pumping the water through carbon filters. The paper then looks at alternative options that involve bio-venting, excavation and capping.

From the Paper:

"At 3 A.M. Anne wakes up gasping for breath for the third time in one week. With her lungs and throat burning, she runs to the bathroom because she begins to feel sick. Later Anne would discover that her liver and kidneys have begun to fail, just from having one glass of water every night before bed. Such damage to a person from just a glass of water is startling.
"These are only a few of the many effects of Trichloroethylene, a colorless liquid that has a common use as a solvent for cleaning metal parts ("OSH Answers: Chemical & Materials: Chemical Profiles: Trichloroethylene: Health effects of Trichloroethylene" [CCOHS] 28 Oct. 2005). What if Trichloroethylene (TCE) leaked into a city's ground water and the general populace was exposed to the chemical? Luckily, this has not yet happened in the small town of Lodi, California, but if nothing is done about the leakage, this very well might happen."

Sample of Sources Used:

• Bartle Wells Associates. City of Lodi: Funding of PCE/TCE Groundwater Remediation. Lodi, CA: Bartle Wells Associates, 2005.
• City of Lodi. City of Lodi Annual Water Quality Report for 2004. Lodi, CA: City of Lodi, 2005.
• City of Lodi. City of Lodi Community Forum [video recording]: discussion of cooperative agreement between State of California, Department of Toxic substance control and City of Lodi and the City of Lodi's Environmental Enforcement Plan. Lodi, CA: 1997.
• Hood, Jeff. "Lodi's Toxic Stew." The Record 3 Oct. 2004: A1.
• Magellan Environmental Inc. Draft Environmental Site Investigation Work plan: City of Lodi Area of Contamination. Lodi, California, Pleasanton, CA: Magellan Environmental Inc., 2003.

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