Record Display for the EPA National Library Catalog


Main Title Development of a capillary wick unsaturated zone pore water sampler.
Author Brown, K. W. ; Thomas, J. C. ; Holder, M. W.
Other Authors
Author Title of a Work
Holder, Michael Wayne.
Thomas, J.C.
CORP Author Texas Agricultural Experiment Station, College Station.;Environmental Monitoring Systems Lab., Las Vegas, NV.
Publisher Environmental Monitoring Systems Laboratory, Office of Research and Development, United States Environmental Protection Agency,
Year Published 1988
Report Number EPA/600/4-88/001
Stock Number PB89-129100
OCLC Number 33319977
Subjects Zone of aeration ; Lysimeter ; Soil permeability
Additional Subjects Water pollution ; Soil water ; Samplers ; Sampling ; Tables(Data) ; Chemical analysis ; Collecting methods ; Field tests ; Clay soils ; Silts ; Sands ; Volatile organic compounds(VOC) ; Inorganic compounds
Library Call Number Additional Info Location Last
ELBD  EPA 600-4-88-001 AWBERC Library/Cincinnati,OH 12/18/1998
NTIS  PB89-129100 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 116 p. ; 28 cm.
Existing unsaturated zone soil water samplers have several deficiencies which jeopardize their utility for field sampling. A capillary wick sampler was developed to overcome these problems. Materials for its construction were selected and tested for conductivity, capillary rise, and chemical inertness. Breakthrough curves for selected inorganic ions and organic chemicals were established in the laboratory. No adsorption/desorption of these chemicals was found for the capillary wick sampler, the suction cup sampler, and the pan sampler. Banks of 8 capillary wick samplers were installed in test plots of undisturbed soils having sand, silt loam and clay textures. The data were used to determine the number of samplers required to characterize the flow of contaminants resulting from a uniform application to the soil surface. These results indicated that, to achieve 95% confidence, 31 samplers would be required in sandy soil, 6 in silt loam soil and 2 in clay soil.
"January 1988." EPA/600/4-88/001.