Record Display for the EPA National Library Catalog


Main Title Calculation of Permeability of Cretaceous Sandstones from Pumping and Static Level Data in Selected Areas of Western South Dakota.
Author Rah, Perry H. ; Grie, John P. ;
CORP Author South Dakota School of Mines and Technology, Rapid City. Dept. of Geology and Geological Engineering.
Year Published 1973
Report Number DI-14-31-0001-3842; OWRR-A-034-SDAK; 01113,; A-034-SDAK(1)
Stock Number PB-225 128
Additional Subjects ( South Dakota ; Aquifers) ; ( Permeability ; Aquifers) ; Ground water ; Pumping ; Tests ; Sandstones ; Dakota Formation
Library Call Number Additional Info Location Last
NTIS  PB-225 128 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 20p
A pump test was conducted in the Dakota Sandstone at Wall, South Dakota, on October 7, 1972. Two observation wells responded to the pumping, and an average value of permeability was calculated to be 9.42 gpd/sq ft. No deviation from the Theis type curve was observed during the 44 hours of pumping at 120 gpm. A pump test was conducted on a new well at Box Elder, South Dakota, on July 6, 1972. The well was pumped at 110 gpm for 54 hours and the recovery was documented. The resulting calculation of permeability is 7.06 gpd/sq ft. (Author)