Daniel T. Chafin

• Effect of the Paradox Valley Unit on the dissolved-solids load of the Dolores River near Bedrock, Colorado, 1988-2001
• Effects of land use on water quality of the Fountain Creek alluvial aquifer, east-central Colorado
• Evaluation of trends in pH in the Yampa River, northwestern Colorado, 1950-2000
• Ground-water geochemistry of the near-surface Wasatch Formation, northern Green River basin, Sublette County, Wyoming
• Hydrogeology of the alluvial aquifers at the Pueblo Depot Activity near Pueblo, Colorado
• Methane-concentration and methane-isotope data for ground water and soil gas in the Animas River Valley, Colorado and New Mexico, 1990-91
• Migration and geochemical evolution of ground water affected by uranium-mill effluent near Canon City, Colorado
• Migration and geochemical evolution of ground water affected by uranium-mill effluent near Cañon City, Colorado
• Sources and migration pathways of natural gas in near-surface ground water beneath the Animas River Valley, Colorado and New Mexico