1. Quality of ground water in agricultural areas of the San Luis Valley, South-Central Colorado Author/Creator: Edelmann, Patrick, author Publication/Creation: Lakewood, Colorado : U.S. Geological Survey, 1984 Resource Type: Book Access & Availability: Loading
2. The quality of ground water in the principal aquifers of northeastern-north central Washington Author/Creator: Ebbert, J. C., author Publication/Creation: Tacoma, Washington : U.S. Geological Survey, 1984 Resource Type: Book Access & Availability: Loading
3. Quality of water from bedrock aquifers in the South Carolina Piedmont Author/Creator: Patterson, Glenn G., author Publication/Creation: Columbia, South Carolina : U.S. Geological Survey, 1984 Resource Type: Book Access & Availability: Loading
4. Quality of water in the alluvial aquifer, American Bottoms, East St. Louis, Illinois Author/Creator: Voelker, David C., author Publication/Creation: Urbana, Ill. : U.S. Geological Survey, 1984 Resource Type: Book Access & Availability: Loading