Hydrogeochemistry and simulated solute transport, Piceance Basin, northwestern Colorado

Geochemistry of selected aquifers in Tertiary rocks of the Upper Colorado River basin in Wyoming, Colorado, and Utah

“…Previous studies concerning the quality of water from the Green River Formation in the Piceance Basin and Uinta Basin aquifer systems include those reported by Kimball (1981), Robson and Saulnier (1981), and Holmes and Kimball (1983). Because of the limited amount of water-quality data from water in the Green River Basin aquifer system in Wyoming, the following discussion is limited to the Laney aquifer and Wilkins Peak confining unit.…”

“…Due to inadequate water-quality data and (or) limited areal extent, other Tertiary formations were not studied. Changes in water quality along projected flow paths in the Piceance Basin north of the Colorado River are summarized by Robson and Saulnier (1981).…”

Hydrologic-information needs for oil-shale development, northwestern Colorado

“…These tests could be conducted by using packers to isolate parts of the completely penetrating wells. Robson and Saulnier (1980) and Taylor (1982) reported that the vertical hydraulic conductivity of some aquifers in the Piceance basin is substantially lower than the horizontal hydraulic conductivity. Impaired vertical hydraulic conductivity tends to stratify the aquifers and influences the response of the aquifers to pumping.…”

“…Reports that describe the water resources of the Upper Colorado River Basin include those by lorns and others (1965) and Price and Arnow (197*0-Other hydrologic report^on the Piceance basin by the U.S. Geological Survey include a reconnaissance investigation by Coffin and others (1971); mathematical modeling of basin hydrology by Weeks and others (197*0; an evaluation of hillslope and channel erosion by Frickel, Shown, and Patton (1975); results of test-hole drilling by Welder and Saulnier (1978); and solute transport modeling by Robson and Saulnier (1980). The U.S. Department of the Interior (197*0 prepared a report on water supplies for energy in the Upper Colorado River Basin.…”

“…2). Robson and Saulnier (1980) described the predicted hydrologic and solute-transport effects of mine drainage, also at lease tracts C-a and C-b.…”