Record Display for the EPA National Library Catalog


Main Title Enumeration and Characterization of Bacteria Indigenous to a Shallow Water-Table Aquifer.
Author Wilson, J. T. ; McNabb, J. F. ; Balkwill, D. L. ; Ghiorse, W. C. ;
CORP Author Florida State Univ., Tallahassee. ;Cornell Univ., Ada, OK.;Robert S. Kerr Environmental Research Lab., Ada, OK.
Year Published 1983
Report Number EPA-R-806931; EPA-600/J-83-021;
Stock Number PB83-229039
Additional Subjects Bacteria ; Aquifers ; Water pollution ; Soil microbiology ; Cultivation ; Biodeteration ; Chlorobenzenes ; Sampling ; Depth ; Toluene ; Ethane ; Ethylene ; Oklahoma ; Reprints ; Vadose zone ; Chlorobenzenes
Library Call Number Additional Info Location Last
NTIS  PB83-229039 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 8p
Widespread pollution of ground water in the U.S. by organic compounds has kindled interest in the numbers of microbes that might be found in aquifers and associated regions of the deeper unsaturated zone, and in their ability to degrade organic pollutants. Newly developed techniques in microbial ecology allow the direct enumeration and examination of soil microbes without recourse to their cultivation on growth media. These techniques reduce many uncertainties associated with the use of culture media, such as the growth of contaminants or the failure of indigenous forms to grow on a particular medium. Samples were recovered aseptically from depths of 1.2, 3.0, and 5.0 meters (m) at the margin of a small floodplain near Lula, Oklahoma. Depth to the water table was 3.6 m; depth to bedrock was 6.0 m. Numbers of microbes were surprisingly similar at all three depths. Chlorobenzene was degraded in material from the vadose zone, while bromodichloromethane was degraded in material from the saturated zone.