by Daniel T. Chafin
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Methane-concentration and methane-isotop...
Ground-water geochemistry of the near-su...
Evaluation of trends in pH in the Yampa ...
Effect of the Paradox Valley Unit on the...
Effects of land use on water quality of ...
Migration and geochemical evolution of g...
Nuclear waste
Hazardous waste
Snow Falling on Cedars
Pesticides
Status of ground-water resources at U.S....
Hydrologic data, 1964