Records of water levels in monitoring wells in the Gallatin Valley, southwestern Montana, 1947-93

Abstract

Water-level data were collected in the Gallatin Valley to provide a basis for evaluation of the configuration of the ground-water surface and water-level change. Water-level records collected during a 2-year study of the area and historical water-level data for 121 wells in the Gallatin Valley are summarized in the report. Well-depth and primary-aquifer data are included. The locations of the wells are shown on a map at a scale of 1:275,500.

Hydrogeologic investigation of the Belgrade-Manhattan area, Gallatin County, Montana: Superposition groundwater modeling report

“…Dunn (1978) collected groundwater samples and groundwater-level data to evaluate conditions after the Hackett and others (1960) report was completed. Slagle (1995) examined hydrologic conditions in the Gallatin Valley to assess the eff ects of land-use change. Neither Dunn (1978) nor Slagle (1995) reported notable changes to local water supplies.…”

“…Slagle (1995) examined hydrologic conditions in the Gallatin Valley to assess the eff ects of land-use change. Neither Dunn (1978) nor Slagle (1995) reported notable changes to local water supplies. Dixon (2002) examined aquifer properties based on drillers' log information and categorized local hydrogeologic units.…”

“…The geology of the Gallatin Valley was most recently described by Vuke and others (2014;fi g. 3). Previous geologic mapping includes Hackett and others (1960), with detailed descriptions provided by Custer and others (1991), Slagle (1995), Dixon andCuster (2002), andEnglish (2002). Hackett and others (1960) and Slagle (1995) provide information on the fl ow regime and hydrogeology of the basin.…”

Magnitude, extent, and potential sources of nitrate in ground water in the Gallatin Local Water Quality District, southwestern Montana, 1997-98

“…Custer (1991) reexamined the water-yielding potential of the unconsolidated deposits west of Bozeman. Slagle (1995b) appraised the 1992-93 hydrologic conditions throughout the Gallatin Valley, focusing on hydrologic changes resulting from changes in land use. Erickson (1995) and Hay (1997) estimated water budgets for unconsolidated aquifers underlying the benches north of Bozeman.…”