Scientific Investigations Report 2007–5258
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2007–5258
Water-Resource Trends and Comparisons Between Partial-Development and October 2006 Hydrologic Conditions, Wood River Valley, South-Central Idaho
Prepared in cooperation with Blaine County, City of Hailey, City of Ketchum, The Nature Conservancy, City of Sun Valley, Sun Valley Water and Sewer District, Blaine Soil Conservation District, City of Bellevue, and Citizens for Smart Growth
By Kenneth D. Skinner, James R. Bartolino, and Andrew W. Tranmer
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Plates
Plate 1. Partial-development water-table map of the unconfined aquifer, Wood River Valley, south-central Idaho, 1952–86 (PDF, 589 KB)
Plate 2. October 2006 water-table map of the unconfined aquifer, Wood River Valley, south-central Idaho, October 23–27, 2006 (PDF, 586 KB)
Plate 3. Changes in the water-table altitude of the unconfined aquifer from partial development (1952–86) to October 2006, Wood River Valley, south-central Idaho (PDF, 585 KB)
Plate 4. Partial-development and October 2006 potentiometric surface and change maps of the confined aquifer, Wood River Valley, south-central Idaho (PDF, 428 KB)
Figures
Figure 1. Location of communities, continuous streamflow-gaging stations, weather stations, and snow-survey sites, Wood River Valley, south-central Idaho.
Figure 2. Palmer drought severity index for Idaho climate zone 4.
Figure 3. Blaine County population by decennial census, 1900–2000, and projected 2005 population, south-central Idaho.
Figure 4. Location of surface-water discharge measurements, Wood River Valley, central Idaho, October 23–26, 2006.
Figure 5. Normalized residual plots of mean annual depth to water for three wells and total annual precipitation at the Ketchum Ranger Station, Wood River Valley, south-central Idaho.
Figure 6. Trend analysis of annual 7- and 30-day low streamflows for two gaging stations on the Big Wood River, south-central Idaho.
Figure 7. Mean monthly discharge at Big Wood River near Bellevue, south-central Idaho, water years 1915–96.
Tables
Table 1. Continuous record streamflow-gaging stations within a 25-mile buffer of Wood River Valley, south-central Idaho.
Table 2. Mean annual and annual peak flow from selected streamflow-gaging stations in and adjacent to Wood River Valley, south-central Idaho.
Table 3. National Weather Service stations, AgriMet stations, and snow-survey sites in or near the Wood River Valley, south-central Idaho.
Table 4. Summary of data from selected weather stations in and near the Wood River Valley, south-central Idaho.
Table 5. Surface-water trend analyses for three streamflow-gaging stations, Wood River Valley, south-central Idaho.
Table 6. Extremes of ground-water levels and annual variation for selected wells in the Wood River Valley, south-central Idaho, 1954–2006.
Table 7. Streamflow measurements, Wood River Valley, south-central Idaho, October 23–26, 2006.
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Send questions or comments about this report to the author, K.D. Skinner, (208) 387-1343.
For more information about USGS activities in Idaho, visit the USGS Idaho Water Science Center home page.
U.S. Department of the Interior | U.S. Geological Survey