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URAVAN-BECK PROJECT DRILL SITE P-4 Page 4 of 7 <br />NOTICE OF INTENT TO COMMENCE PROSPECTING <br />APPENDICES To NOI APPLICATION <br />Section 1 V. 3. <br />Soil depth ranges from 0-8 inches on the Gladel soils (sandy loam), and 0 to 16 inches on <br />the Bond soils (fine sandy loam to clay loam). Below the soil material lies unweathered <br />bedrock derived from sandstone residuum. <br />Soil will be stripped to a 6 in. depth from a 20 ft. diameter area around each drill hole. Total <br />volume of topsoil stored per drill hole will be approximately 7.4 CY. Soil will be stored in one <br />stockpile for each drill fence, close to the drill holes. <br />When drilling is complete, any cuttings that do not fit back in the hole will be spread in an <br />area up to 20 ft. in diameter around each drill hole with the backhoe. Topsoil will then be re- <br />spread to an average depth of 6 in. over the 20-ft. diameter area around each drill hole with <br />the backhoe. <br />Section IV. 4. <br />After geophysical logging, all holes will be backfilled with cuttings, concrete-plugged at 7 to <br />2 ft. below ground surface (bgs), and dirt-filled from 2 to 0 ft. bgs to meet Colorado <br />abandonment regulations as described in Chapter 5.4 of the DRMS hard rock regulations. <br />Any drill holes that have evidence of artesian flow will be plugged with a neat cement grout <br />or similar material to prevent any flow to the surface. Any hole that encounters an aquifer <br />will be sealed to prevent contamination of this aquifer using high quality sodium bentonite <br />gel specifically designed for use as an abandonment fluid. All dry holes will be backfilled <br />with cuttings, and plugged from 7 to 2 foot bgs with a cement plug. The final two ft. to the <br />surface will be filled with remaining cuttings or dirt.