1. Method to identify wells that yield water that will be replaced by Colorado River water in Arizona, California, Nevada, and Utah Author/Creator: Wilson, Richard P., author Publication/Creation: Tucson, Arizona : U.S. Geological Survey, 1994 Resource Type: Book Access & Availability: Loading
2. Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory : determination of moderate-use pesticides and selected degradates in water by C-18 solid-phase extraction and gas chromatography/mass spectrometry Author/Creator: Sandstrom, Mark W. (Mark William), author Publication/Creation: Denver, Colorada : U.S. Geological Survey, 2001 Resource Type: Book Access & Availability: Loading
3. Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory : determination of pesticides in water by graphitized carbon-based solid-phase extraction and high-performance liquid chromatography/mass spectrometry Publication/Creation: Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey, 2001 Resource Type: Book Access & Availability: Loading
4. Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory : determination of pesticides in water by graphitized carbon-based solid-phase extraction and high-performance liquid chromatography/mass spectrometry Publication/Creation: Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey, 2001 Resource Type: Book Access & Availability: Loading
5. Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory : determination of wastewater compounds by polystyrene-divinylbenzene solid-phase extraction and capillary-column gas chromatography/mass spectrometry Publication/Creation: Denver, CO : National Water Quality Laboratory, U.S. Geological Survey, 2002 Resource Type: Book Access & Availability: Loading
6. Microbiological monitoring for the U.S. Geological Survey National Water-Quality Assessment Program Author/Creator: Francy, Donna S., author Publication/Creation: Columbus, Ohio : U.S. Deptartment of the Interior, U.S. Geological Survey, 2000 Resource Type: Book Access & Availability: Loading