2004-08-19_REVISION - M2003037 (3)

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Although these depths are in the range which were expected, these depths measured should also be accounted to the fact that the property where the mining will be conducted is currently under irrigation by a local farmer, so depths during mining are expected to be lower than the levels measured, but the mining plan will still be based upon these measurements. Appendix B includes all of monitoring logs to date, as well as visual representations of the logs throughout the monitoring period. 0) In January of 2004, Lambert and Associates collected samples of the gravei from a representative depth and conducted sieve analyses as well as percolation tests in the Phase Al mining area. The results of these tests are presented in a Lambert report included in Appendix B. The sieve analyses show that a very small portion of the material is less than 200 mesh (clay size} which would interfere with ground water movement, The two tests show 3.6% and 5.6% respectively. Lambert indicates that this gravel should have a fast permeability rate. Two test borings were also made in the Phase Al area, which were tested for percolation rates. Lambert states that the results show that the material offers little to no resistance to water flow. The combination of these two tests show that it is highly unlikely that water movement would be inhibited, therefore, any water movement from irrigation would likely be near the bottom of the gravel. In the water well drilling in Phase Al described above, the drill logs show that the gravel near the bottom of the holes does contain some silt. Hole W-Al shows silty gravel layers beginning to appear at a depth of44 feet, while the remaining 3 holes in Phase Al through A3 (WA-2 through W- A4) show the top of the silty gravel at depths of 48 feet to 54 feet. Given these depths, and given the fact that the silty gravel will still allow water movement; there is virtually no chance that water could be encountered within 35 feet of the surface, even during irrigation season. 11) A Ph.D hydrologist was also employed to analyze the predicted level of groundwater flow based on Darcy's equation and the hydrologic parameters that exist on the site. This report, Haldorson Sand and Gravel Mine 38