Laserfiche WebLink
13.22 0.4 <br />16.81 0.5 <br />20.1 0.6 <br />24.78 0.7 <br />30.1 0.8 <br />35.53 0.9 <br />Well Capacity o[ the Tatum Well <br />After allowing the well to recover for 35 minutes, the well was pumped down again, and <br />produced about 1S gallons. This indicates that the well would produce about three <br />gallons per hour, or about seventy-five gallons a day. <br />The electric pump was not placed at an optimum depth for the greatest production of <br />water, which would be at the bottom of the well. The electric pump was placed 10 feet <br />above the bottom of the well to avoid pulling sediment into the pump that could damage <br />the pump. The electric pump, when pumping commenced, had 29 feet of water above <br />the pump intake. The windmill pump would have had 39 feet of head above the pump <br />intake. If the electric pump intake was placed at the same level as the windmill pump <br />intake, water production would normally be expected to be at least 25 percent higher. <br />During inspections of the pump string in Mazch and May, the Division noted corrosion <br />and staining of the pipe that may indicate a historic water level. Earlier, when the pump <br />string was pulled in Mazch, the pipe remained wet because of snow and any difference in <br />color of the staining was not noted. Later observations of the pipe when dry, show that <br />the bottom third of the pump string is more yellowish and the upper two thirds of the <br />pipe is a rusty red color. The color transition was noted on pipe #7 at 93 feet from the <br />bottom of this pipe section. This level would correspond to a level of 114 feet below the <br />top of the casing. This level corresponds to the lowest water level noted in this well <br />since February 1994 and may indicate a historic low water level in the well. <br />Investigation into Mitigation of Impact <br />There aze several applicable areas in the Rules and Regulations of the Colorado Mined <br />Land Reclamation Board, pursuant to the Colorado Surface Coal Mining Reclamation <br />Act, that refer to the protection of water resources. Rule 2.05.6(3), which addresses the <br />protection of hydrological balance, requires mine operators to identify measures in the <br />permit application that will be taken to ensure the protection of the rights of present <br />users of groundwater which may be adversely affected by mining and reclamation <br />operations. An operator must also take measures to protect the quantity of groundwater <br />both within the permit area and adjacent areas and, if protection from adverse effects of <br />8 <br />