Construction and use of special drawdown scales for predicting water-level changes throughout heavily pumped areas /

Mode of access: Internet.

Water contamination in fallout areas /

Mode of access: Internet.

A method for determining drainage areas, flow distances, and civil areas for water quality subsegments in Illinois /

Cover title.

Assessment of nonpoint source impacts on Illinois water quality.

"IEPA/WPC/88-020."

Storet II : storage and retrieval of data for open water and land areas /

Mode of access: Internet.

Quality of ground water in agricultural areas of the San Luis Valley, south-central Colorado /

Bibliography: p. 25-26.

Nonpoint-source discharges and water quality of the Elk Creek basin, west-central Wisconsin /

Mode of access: Internet.