4.6 MAIN RESULTS 4.6.1 GIS A composite map of the hydrology, vegetation, and infrastructure GIS layers is shown in Figure 7. All of the layers cannot be shown on one map and therefore a complete list of GIS layers is given in Table 2 in Appendix B. The natural conditions and infrastructure layers of the 1:25,000 GIS of Site 1 are shown in Figure 8. The 1:25,000 GIS has much more detail of the oil infrastructure than the Overview GIS including individual wells and buildings. A table of Site 1 coverages and more detailed discussion of the layers is given in Appendix B. The EWG Oil and Gas subgroup decided that Site 3 was more important than Site 2 from a risk viewpoint because Site 3 will be developed in the near future whereas Site 2 will not be developed for some time. Therefore, the production of the GIS for Site 2 was postponed and the GIS for Site 3 was completed. The 1:25,000 GIS for the Site 3 GIS is shown in Figure 9. Since Site 3 is undeveloped at present the oil infrastructure layers are less detailed than for Site 1. Otherwise, Site 3 has many of the same layers as the Site 1 GIS. A table of Site 3 coverages and a more detailed description of the layers is given in Appendix C.
