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+~• <br />s ~ <br />Harry Ranney -2- September 29, 1995 <br />G~ 4. The hydrologic monitoring schedule for the alluvial wells will <br />be revised to incorporate the Division's comments. <br />5. No comment required. <br />6. Bedrock well Bw-1 was drilled in about 1989. It is the only well <br />that consistently makes water. It will generally produce 2 gpm. <br />The Operator does not use this well for stock watering. Any use <br />~~~'`~ of these wells for stock watering is done by the landowner. <br />,a ~~p~vQ' Completion information is presented on Map 110. The total depth <br />of the wells is also shown on this map. <br />~~~~ ` Bedrock well BW-2 was also drilled in about 1989. It was <br />completed in a damp sand zone. It initially produced limited <br />amounts of water. However, the perched water in the localized <br />area was quickly depleted by the well so the well is dry. <br />Bedrock well BW-3 was originally drilled in the late 1950's or <br />early 60's. It was used by the landowner for stock watering. <br />In about 1990 the well casing sheared off near the free standing <br />water level so the old well was abandoned. A new well was <br />drilled within 15 feet of the old well. This new well missed the <br />sand channel aquifer so it typically has been dry since it was <br />drilled. <br />The Operator believes the springs are dry because of an extended <br />dry period from 1985 through 1994. According to the landowner, <br />these springs have dried up in the past during extended drought <br />periods. <br />There is virtually no conceivable way the mine could impact the <br />Burro Canyon aquifer. The mine only stripped 30 - 40 feet deep. <br />The Burro Canyon aquifer in the area of the mine is about 120 <br />feet below the surface and there is no evidence the aquifer is <br />under any hydraulic head. <br />The Operator does not have well permits for the bedrock wells. <br />Since the Division is hesitant to drop the monitoring for the <br />bedrock wells, the Operator proposes to monitor depth to water <br />in the three wells semi-annually. <br />Please call if you have any questions. <br />Sincerely, <br />Jim Stover, P.E. <br />Consulting Engineer <br />cc: Dave Andrews <br />