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U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2008–5045

Extent and Depth to Top of Basalt and Interbed Hydrogeologic Units, Yakima River Basin Aquifer System, Washington

Prepared in cooperation with the Bureau of Reclamation, Washington State Department of Ecology, and Yakama Nation

By M.A. Jones and J.J. Vaccaro

Download PDF (7 MB)

Plates

Plate 1. Map showing extent and depth to top of Saddle Mountains hydrogeologic unit, in Yakima River Basin aquifer system, Wahington (PDF, 10 MB)

Plate 2. Map showing extent and depth to top of Mabton hydrogeologic unit, in Yakima River Basin aquifer system, Washington (PDF, 8 MB)

Plate 3. Map showing extent and depth to top of Wanapum hydrogeologic unit, in Yakima River Basin aquifer system, Washinton (PDF, 9.4 MB)

Plate 4. Map showing extent and depth to top of Vantage hydrogeologic unit, in Yakima River Basin aquifer system, Washington (PDF, 8 MB)

Plate 5. Map showing extent and depth to top of Grande Ronde hydrogeologic unit, in Yakima River Basin aquifer system, Washinton (PDF, 9.1 MB)

Figures

Figure 1. The Yakima River Basin, Washington.

Figure 2. Land use and land cover, Yakima River Basin, Washington, 1999.

Figure 3. Selected tributaries, diversion canals, return flows, and streamflow-gaging stations, Yakima River Basin, Washington.

Figure 4. Simplified surficial geology, Yakima River Basin, Washington.

Figure 5. Structure delineating Yakima River Basin aquifer system, Washington.

Figure 6. Correlation chart showing the regional relation between generalized stratigraphy and hydrogeologic units for the Yakima River Basin, Washington.

Figure 7. Distribution of wells used to delineate the depth to top of Saddle Mountains unit, Yakima River Basin aquifer system, Washington.

Figure 8. Distribution of wells used to delineate the depth to top of Mabton unit, Yakima River Basin aquifer system, Washington.

Figure 9. Distribution of wells used to delineate the depth to top of Wanapum unit, Yakima River Basin aquifer system, Washington.

Figure 10. Distribution of wells used to delineate the depth to top of Vantage unit, Yakima River Basin aquifer system, Washington.

Figure 11. Distribution of wells used to delineate the depth to top of Grande Ronde unit, Yakima River Basin aquifer system, Washington.

This report is available online in Portable Document Format (PDF). If you do not have the Adobe Reader, it is available for free download from Adobe Systems Incorporated.

Download the report (PDF, 7 MB)

Download Plates 1-5 (ZIP, 43.6 MB)

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Send questions or comments about this report to the author, M.A. Jones, (253) 552-1617.

For more information about USGS activities in Washington, visit the USGS Washington Water Science Center home page.