Record Display for the EPA National Library Catalog


Main Title Methods of Determining Aquifer Storage Capacity and Fresh-Saline Water Interfaces by Geoelectrical Investigations.
Author Frohlic, Reinhard K. ; Hea, William ;
CORP Author Missouri Water Resources Research Center, Rolla.
Year Published 1972
Report Number DI-14-31-0001-3525; OWRR-A-046-MO; 06033,; A-046-MO(1)
Stock Number PB-216 812
Additional Subjects ( Aquifers ; Water storage) ; ( Ground water ; Electrical resistivity) ; Interfaces ; Resistivity exploration ; Drilling ; Clays ; Gravel ; Depth sounding ; Fresh water ; Water wells ; Missouri ; Grundy County(Missouri)
Library Call Number Additional Info Location Last
NTIS  PB-216 812 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 41p
Geoelectrical investigations in Grundy County of northwestern Missouri where the groundwater resources of the glacial deposits have already been examined through an extensive drilling program by the Missouri Geological Survey and Water Resources, indicate that water-bearing gravel deposits can be distinguished from glacial deposits containing appreciable amounts of clay and limited amounts of water. The Schlumberger method used for the geoelectric depth soundings in the vicinity of the Survey's drillholes demonstrates the exploratory usefulness of the method in that it can partly replace the more expensive procedure of drilling. The method also provides improved interpretation between drillholes. Results of the investigation show that, in the area, clay has a resistivity below 20 ohm m, that the fresh water-bearing gravel at the bottom of the buried glacial stream channels has a resistivity of 40 to 50 ohm m, and that the near surface glacial gravel deposits have a resistivity above 100 ohm m. (Author Modified Abstract)