Comparison of measured and predicted trichloroethylene concentrations in soil gas resulting from ground water

Conference · Fri Oct 01 04:00:00 EDT 1993 · Journal of Environmental Health; (United States)

OSTI ID:5898180

Sohn, M D; Custance, R; Ryer-Powder, J; Sullivan, M J ^[1]

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1. McLaren/Hart Environmental Engineering, Burbank, CA (United States). ChemRisk Div.

Volatile organic compounds (VOCs) present in ground water have two common fates: migration and flow with ground water, and volatization through the capillary fringe into the vadose zone. This paper will discuss this transport mechanism using a case study in which modeled VOC concentrations are compared with soil vapor data. A vapor probe study, performed at a manufactured facility, identified high levels of trichloroethylene (TCE) vapor in soil. Further sampling identified low levels of TCE in soil and high levels in ground water both beneath and upgradient of the site. Based on the results, the governing regulatory agency proposed that remediation of the soil must be performed. Because soil concentrations were relatively low, fate and transport modeling was used to identify the source of the TCE vapor. The Jury Behavior Assessment Model was used to calculate the vapor flux of TCE at depths within the vadose zone resulting from TCE in ground water.

• OSTI ID: 5898180
• Report Number(s): CONF-9310166--
• Conference Information: Journal Name: Journal of Environmental Health; (United States) Journal Volume: 56:3
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540220* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
CHLORINATED ALIPHATIC HYDROCARBONS
COMPARATIVE EVALUATIONS
CONTAMINATION
ECOLOGICAL CONCENTRATION
ENVIRONMENTAL TRANSPORT
EVALUATION
GROUND WATER
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROGEN COMPOUNDS
MASS TRANSFER
MATHEMATICAL MODELS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
SOILS
WATER