Hanford Site National Environmental Policy Act (NEPA) - Pacific ...

Figure 4.4-8. Flood Area for the Probable Maximum Flood on the Hanford Site,
Washington, as Determined by the Upper Limit of Precipitation and
Maximum Runoff .....................................................................................................4.61
Figure 4.4-9. Flood Area from a 100-Year Flood of the Yakima River near the Hanford
Site, Washington.......................................................................................................4.63
Figure 4.4-10. Extent of Probable Maximum Flood in Cold Creek Area, Hanford Site,
Washington, delineated using the U.S. Army Corps of Engineers’ HEC-2
Water Surface Profiles model...................................................................................4.65
Figure 4.4-11. Water Table Elevations in Meters (1 m = 3.28 ft) and Inferred
Groundwater Flow Directions for the Unconfined Aquifer at Hanford,
Washington, March 2006 .........................................................................................4.70
Figure 4.4-12. Distribution of Radionuclides in Groundwater on the Hanford Site,
Washington, at Concentrations above the Maximum Contaminant Level
or Interim Drinking Water Standard during Fiscal Year 2006 .................................4.78
Figure 4.4-13. Distribution of Hazardous Chemicals in Groundwater on the Hanford
Site, Washington, at Concentrations above the Maximum Contaminant
Level or Interim Drinking Water Standard during Fiscal Year 2006 .......................4.79
Figure 4.4-14. Geologic Units Intersected by the Water Table in the 100 Areas, Hanford
Site, Washington.......................................................................................................4.80
Figure 4.5-1. Distribution of Vegetation Types and Areas on the Hanford Site,
Washington, before the Year 2000 Fire....................................................................4.85
Figure 4.5-2. Area of Hanford Site, Washington, Burned as a Result of the June 27 to
July 2, 2000, Wildfire ...............................................................................................4.88
Figure 4.5-3. Columbia River Islands in the Vicinity of the Hanford Site, Washington ...............4.97
Figure 4.5.4. Fall Chinook Salmon Spawning Areas in the Hanford Reach Area of the
Columbia River, Washington ................................................................................. 4.102
Figure 4.6-1. Areas Surveyed for Cultural Resources on the Hanford Site, Washington,
and Local Vicinity .................................................................................................. 4.116
Figure 4.6-2. Map of the Hanford Site, Washington, Showing Towns, Ferries and
Prominent Features Associated with the Early Settlers Landscape........................ 4.122
Figure 4.7-1. Hanford Site, Washington, and Surrounding Communities ................................... 4.138
Figure 4.7-2. Location of Minority Populations near the Hanford Site, Washington,
Based on 2000 Census............................................................................................ 4.147
Figure 4.7-3. Location of Low-Income Populations near the Hanford Site, Washington,
Based on 2000 Census............................................................................................ 4.148
Figure 4.8-1. Viewshed from Gable Mountain on the Hanford Site, Washington....................... 4.160
Figure 4.9-1. Location of Background Noise Measurements Collected for the Basalt
Waste Isolation Project, Hanford Site, Washington ............................................... 4.163
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