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Data analysis for preliminary conceptual model design, Vadose Zone Monitoring System (VZMS), McClellan AFB. 1997 annual report

Technical Report ·
DOI:https://doi.org/10.2172/650226· OSTI ID:650226

Vadose zone investigations are being performed at site S-7 in IC 34, at McClellan AFB. At this location, a Vadose Zone Monitoring System (VZMS) is being used to collect subsurface data including hydraulic potential, soil gas pressure, moisture content, water chemistry, gas chemistry, and temperature. Although each individual data set is useful in improving the characterization of this contaminated site, the overall purpose of data collection is to provide input for the conceptual and numerical modeling of VOC transport in the vadose zone and the exchange of contaminants between the vadose zone and groundwater. In this report the authors submit a summary and preliminary analysis of the data collected through the end of 1997 and present it in the context of input for the impending modeling. This report merges findings from both the first and second half of 1997 and is presented as an annual report in lieu of two semi-annual reports, due to the fact that insufficient data had been collected up to mid June to allow a meaningful analysis.

Research Organization:
Lawrence Berkeley National Lab., CA (United States)
Sponsoring Organization:
Department of Defense, Washington, DC (United States); USDOE Assistant Secretary for Human Resources and Administration, Washington, DC (United States)
DOE Contract Number:
AC03-76SF00098
OSTI ID:
650226
Report Number(s):
LBNL--41262; ON: DE98052325
Country of Publication:
United States
Language:
English