List of Figures

1. Example images of the three interfaces used in this web document (HTML text, VRML model, and Geometry Controls Java applet, respectively).
2. Location of study area
3. Location of Ellis County within Kansas
4. Location of City of Hays within Ellis County (3-D)
5. Geologic cross-section (3-D)
6. Local surface features Hays area
7. Location of wells used for stratigraphic information, Hays area.
8. Map of PCE distribution and Qal thickness
9. Surface contour of the top of the Cretaceous Shale (Kc)
10. Water table contours
11. Distribution of sand-gravel facies with thickness exceeding 1 m (3-D)
12. Modeled per-element discharge, Qal layer
13. Modflow model grid, Layers 1 and 2, Hays, KS
14. Modflow model grid, Layer 3, Hays, KS
15. Backward-tracked particle paths to well C-20 (3-D)
16. 2-D capture zones for well C-20
17. Map view of travel time from water table to well C-20
18. Side view, 3D volume showing travel time from water table to well C-20 (3-D)
19. Ten-year capture zones and particle paths for all Hays city wells
20. Five and Ten-year capture zones, Hays city wells
21. Areas with unconfined Qal (3-D)