A digital-computer model of the Big Sioux aquifer in Minnehaha County, South Dakota /

Mode of access: Internet.

Plan of study for the northern Atlantic coastal plain regional aquifer system analysis /

"April 1980."

Hydrologic analysis of the proposed Badger-Beaver Creeks artificial-recharge project, Morgan County, Colorado /

"July 1980."

Three dimensional digital-computer model of the Ferron sandstone aquifer near Emery, Utah /

"October 1980."

Investigation of artificial recharge of aquifers in Nebraska /

"September 1980."

Results of a reconnaissance water-quality sampling program of the Ogallala aquifer in Colorado, Kansas, Nebraska, Oklahoma, South Dakota, and Texas /

Bibliography: p. 7.

Appraisal of the water resources of the Big Sioux aquifer, Brookings, Deuel, and Hamlin Counties, South Dakota /

Mode of access: Internet.

Drinking-water quality and variations in water levels in the fractured crystalline-rock aquifer, west-central Jefferson County, Colorado /

Mode of access: Internet.

Preliminary delineation and description of the regional aquifers of Tennessee : the Cretaceous aquifer system of west Tennessee /

Shipping list no.: 86-921-P.

A two-dimensional, finite-difference model of the high plains aquifer in southern South Dakota /

Bibliography: p. 32-34.

Availability of water from the Outwash Aquifer, Marion County, Indiana /

Bibliography: p. 68-70.

Simulations of non-steady flow in a glacial outwash aquifer, southern Franklin County, Ohio /

Bibliography: p. 17.

Preliminary delineation and description of the regional aquifers of Tennessee--Tertiary aquifer system /

Shipping list no.: 86-1003-P.

Plan of study for the regional aquifer systems analysis of the upper Colorado River Basin in Colorado, Utah, Wyoming, and Arizona /

Mode of access: Internet.

Artificial recharge of a brackish water well /

Mode of access: Internet.