Report on analysis of hydrologic data for index areas: Muskingum River Basin, Ohio.

Mode of access: Internet.

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.

Analysis of water quality standards, Upper Sangamon Basin, Illinois /

Cover title.

Analysis of water quality : Rock River Basin in Illinois /

Cover title.

Analysis of water quality : upper Kaskaskia River Basin, Illinois /

Bibliography: p. 31-1-31-4.

Economic analysis: Missouri River Basin project.

"For administrative use only."

Collection and analysis of ground-water samples in the Sierra Vista Basin, Arizona, 1996 /

Mode of access: Internet.