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1.34 WASTE CONTAINMENT AND SITE REMEDIATION TECHNOLOGY HOMEWORK 4 – DUE MARCH 19, 2004 Background Acme Manufacturing operated a metal fabrication plant from 1971 to 1976, before the RCRA rules came into effect. As part of their operations, they used the chlorinated organic solvents trichloroethylene (also called trichloroethene and TCE) and 1,1,1- trichloroethane (usually abbreviated 1,1,1-TCA or just TCA). Material handling practices at the facility were casual, and there is extensive contamination of the soil and ground water by these two solvents. The physical setting of the facility is illustrated in the attached Figure 1. The general regional setting is that there are hills to the north (not shown on the map) and a generally southward drainage to a large river (off the map to the south). Immediately to the south of the facility is undeveloped land. To the south of that is a lake with summer cottages. All of the cottages take their drinking water from private on-site water-supply wells. The site is located in glacial outwash deposits. Surficial deposits consist of fine to medium sands. At a depth of 5 meters below ground surface is the top of a one-meter thick layer of clay that acts as a confining bed, separating the surficial deposits from
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This note was uploaded on 12/06/2011 for the course ESD 1.34 taught by Professor Petershanahan during the Spring '04 term at MIT.

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