Date of Award
Master of Science
Geological and Environmental Sciences
Dr. Richard N. Passero
Dr. Duane Hampton
Dr. Alan Kehew
Masters Thesis-Open Access
A soil gas sampling and analytical technique was investigated to evaluate its ability and versatility for detecting chlorinated hydrocarbons in unconfined aquifers. The technique was used successfully to delineate plumes of perchloroethene (PCE), and 1,1,1-trichloroethane (TCA) contamination present in the vadose zone, and at the water table of an unconfined sand and gravel aquifer. Soil gas samples were obtained by concentrating PCE and TCA vapors diffusing from these sources onto a sorbent material. The samples were analyzed by gas chromatography. The data from the analysis of these samples were used to provide an initial estimate of the source areas, and the areal extent of the groundwater plumes beneath the study area. These estimates were confirmed with water quality data. High degrees of correlation were proven to exist between the soil gas and water quality data obtained during this study.
Mayotte, "An Investigation of a Soil Gas Sampling Technique and Its Applicability for Detecting Gaseous PCE and TCA Over an Unconfined Granular Aquifer" (1988). Master's Theses. 1201.