Correlating soil and soil vapor concentrations at suspect DNAPL sites: A case study

Conference · · Ground Water; (United States)

OSTI ID:6065002

Einberger, C M; Patrick, G C; Burgess, A S; Angelos, K M ^[1]

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1. Golder Assoc., Inc., Redmond, WA (United States)

Recent field investigations at two California Superfund sites contaminated with volatile organic compounds (VOCs) provide data on the relationship between soil and soil vapor concentrations in the unsaturated zone. Historically, chemicals used at the site have included dense nonaqueous phase liquids (DNAPL) such as trichloroethene (TCE), 1,1,1-trichloroethane (TCA), and various chlorofluorocarbons. Regional stratigraphic conditions for both sites are characterized by complex alluvial deposits containing interbedded coarse- and fine-grained sediments with high variability in thickness and lateral continuity. The presence of DNAPL within such soils is suspected at each site, although their physical detection has never been verified. Soil cleanup standards ranging from 0.5 ppm to 1.0 ppm TCE have been defined for both of these sites in accordance with a Consent Decree. Soil vapor extraction is one of the methods selected to remediate the soils. Prior to initiating remediation, areas above the soil cleanup standards required identification. Because the scale of the borehole drilling and sampling program necessary to define such areas would involve numerous soil samples, alternate more cost-effective methods were pursued.

• OSTI ID: 6065002
• Report Number(s): CONF-9310166--
• Conference Information: Journal Name: Ground Water; (United States) Journal Volume: 31:5
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540250* -- Environment
Terrestrial-- Site Resource & Use Studies-- (1990-)
CALIFORNIA
CHLORINATED ALIPHATIC HYDROCARBONS
CLEANING
DECONTAMINATION
DEVELOPED COUNTRIES
ECOLOGICAL CONCENTRATION
HALOGENATED ALIPHATIC HYDROCARBONS
LAND RECLAMATION
LAWS
MANAGEMENT
MATERIALS RECOVERY
MATTER
MONITORING
NORTH AMERICA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
POLLUTION LAWS
PROCESSING
REMEDIAL ACTION
SITE CHARACTERIZATION
SOILS
US SUPERFUND
USA
VOLATILE MATTER
WASTE MANAGEMENT
WASTE PROCESSING