Source Control and Point of Entry Treatment at a Massachusetts Site
A release of gasoline to the environment occurred as a result of historical operation of a gasoline dispensing facility. The release was discovered upon removal of the UST system, when the owner of the USTs ceased operation of the facility. The site is located in an interim wellhead protection area for a PWS well and in close proximity to numerous private water supply wells. Assessment activities identified soil impacts proximate to the gasoline UST system and ground water impacts in both the overburden and fractured bedrock. Remediation consisted of source removal and point of entry treatment to eliminate human exposure through contaminated water supplies. In some cases where bedrock ground water is impacted, the best approach is to actively address the source and the receptors, relying on natural attenuation, if possible, to address the bedrock ground water located between the source and the receptors.
KeywordsPorosity Migration Ethyl Benzene Attenuation
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- Bouwer, H. and Rice, R.C. 1976. A slug test for determining hydraulic conductivity of unconfined aquifers with completely or partially penetrating wells. Water Resources Research. 12(3).Google Scholar
- MADEP (Massachusetts Department of Environmental Protection). 1999. Massachusetts Contingency Plan 310 CMR 40.0000. October 1999.Google Scholar
- Zen, E. 1983. Bedrock Geologic Map of Massachusetts. United States Geological Survey prepared in cooperation with the Commonwealth of Massachusetts Department of Public Works, and Joseph A. Sinnot, State Geologist.Google Scholar