2008-01-15_PERMIT FILE - M2007044 (2)

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strata being penetrated below, forming a cake, so that the hole continues to be drilled dry. If the perched water quantity is sufficient to begin entering the hole, the cuttings will become damp and sticky so that the hole is not thoroughly cleaned. When that occurs, the driller must begin injecting some water with the compressed air to flush the cuttings from the hole. This usually occurs at some point below the water-bearing zone, and has to do with drilling rates and down time. It is therefore not possible to say with any certainty where the water actually comes into the hole, nor at what volume. However, the cuttings, electric logs of the hole, and depth at which the driller had to start injecting can be used to estimate the saturated zone's location. On the other hand, the water exiting the hole is almost entirely that which the driller injected, therefore, it is not possible to acquire any ground water quality data from this type of exploration drill hole. Along with the plugging diagrams in Appendix A are notes showing where the driller began injecting water and the water level standing in the hole when it was probed. These standing water levels should not be thought of as the static water level. The only hole where a water inflow rate could beestimated isHole WW-07-9. This hole was drilled dry to its total depth. When it was probed two hours Later, it had 56 feet of water standing. The borehole diameter is 6 inches; therefore, the cumulative inflow rate of all potential water bearing zones is about O.b9 gallons per minute. C. Each drill site and access routes to each hole have been reclaimed. Pits were backfilled to cover the cuttings that were not returned to the holes. Cuttings outside the pits were mostly raked into the soil or are scattered thin. Dead brush was scattered about the disturbed areas. All disturbed areas were scazified and seeded. We will inspect the drainage below WW-07-11 this fall to see if the late summer rains have concentrated any cuttings into low spots. If so, we will remove the cuttings with a shovel and bucket to dispose of them in the pits not yet covered at our continuing drilling project nearby in Utah. D. Drill holes are marked on the ground by 2"x2" wooden stakes with metal tags showing the hole IDs. A drill hole location map is attached as Appendix B. The hole locations are given in UTM (NAD 27) coordinates in the following table: Hole Number UTM 12 S East North WW-07-1 669066 4277688 WW 07-2 669066 4278054 WW 07-3 669094 4278057 WW-07-4 669088 4278098 W W-07-5 669030 4278106 WW-07-6 669093 4278134 WW=07-7 669016 4278159 WW-07-8 669065 4278213 WW-07-9 669087 4278171 WW 07-IO 669205 4278223 WW-07-11 669183 4278239 WW-07-12 669149 4278270 WW-07-13 669156 4278249 WW 07-14 668992 4278208 Cne~~~t}' l~u~ls Resources (.:'c~r~.7or~ition 3 (S'2.5 Ro~ui 9() 1'.O. f~c~Y 4SS i~'ucla. Colorado R 1 ~t')_~t I'hrnic..; 970-•~;G~-l-%77:i