Agricultural land use water quality interaction : problem abatement, project monitoring, and monitoring strategies /

Mode of access: Internet.

Development of a digital model of ground-water flow in deeply weathered crystalline rock, Chester County, Pennsylvania /

"August 1980."

Evaluation of a potential well field near Church Rock as a water supply for Gallup, New Mexico /

Prepared in cooperation with the U.S. Bureau of Reclamation.

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

Mode of access: Internet.

An assessment of the water quality of the Rock River Basin derived from a biological investigation /

"Prepared for the Illinois Environmental Protection Agency."

An intensive water quality survey of the Rock River from Rockford to Byron, Illinois, May-October, 1978 /

Bibliography: p. 35.

Analysis of water quality : Rock River Basin in Illinois /

Cover title.