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THE INFORMATION ON THIS PAGE DOES NOT NEED TO BE HELD CONFIDENTIAL <br />Exhibit C - AMSO, LLC Notice of Intent Supplemental Information <br />section extending from the base of the nahcolitic oil shale (1830 feet approximate depth) <br />to the base of the Green River Formation (2380 feet approximate depth). Existing site <br />information (well logs for the existing Sulfur Creek #I Well and well logs and core from <br />the existing 21-24-298 well) was used to assess the stratigraphic sequence beneath the <br />site as shown in Figure C.1. As shown, the illite-rich strata occur below the dissolution <br />surface which is expected at a depth of approximately 1855 feet below ground surface. <br />The existing site information suggests that little if any water-bearing strata are likely to <br />be present below the dissolution surface. Therefore, it is anticipated that the L3 will be <br />the first water-bearing strata present above the illite-rich test zone. Below the illite-rich <br />test zone, water may be encountered within the upper portion of the Wasatch Formation. <br />Hydrologic testing will be performed in the corehole and drill holes TM-1 through TM-4 <br />(described below) to assess hydrologic properties within the illite-rich test zone. <br />Hydrologic testing may include straddle-packer testing within the corehole and long-term <br />aquifer testing within the drill holes TM-1 through TM-4. <br />The wells to support the pilot project will be installed during a single phase of <br />construction which is scheduled to begin in late surnmer 2008. It is anticipated that up to <br />3 months may be required to complete the well construction and hydrologic testing phase <br />of the project. Locations for the new wells proposed for the pilot project and the one <br />existing well on the former Shell drill pad (MWP-1) are shown in Figures A.2 and A.3 <br />(Exhibit A). The proposed wells are suniunarized in Table C.1. <br />• <br />• <br />6