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• mine areas have been sealed, making it impassible to obtain readings or <br />make observations in these areas. This includes the western side of the <br />mine and 6th East, 7th East, 8th East, and 9th East areas. <br />The survey was conducted by traveling along all of the accessible main <br />entries and noting the presence of measureable flows of water. Where <br />submains intersected the mains, the flows from the submains were isolated <br />and noted on the map. If the flow was substantial it was traced to its <br />source unless safety prohibited. As in prior years the largest single <br />source of water to the No. 5 Mine is from the first two of three normal <br />faults encountered in the second west section of the mine. These faults, <br />plus flow from the west, are producing approximately 472 gpm. <br />During the course of the study measurements were obtained by using a 1", <br />2", or 8" cutthroat flume, or where conditions allowed, a measuring <br />container and stop watch. At the time of measurement a water sample was <br />obtained and was analyzed for temperature, pH, and EC. The temperature <br />was taken at the time of sampling, while the pH and EC analysis were <br />performed at CT&E's laboratory located at the mine. <br />In the eastern portion of the mine there are no measured significant <br />sources of water. The water that is made is pumped to the mine's main <br />sump. It is assumed that this water is being made at mine faces. <br />However, this cannot be proven due to mine conditions. <br />At this time the No. 5 Mine discharge is measured in two ways. The first <br />being totalizing meters set on each of the No. 5 Mine's pumps. The second <br />being a 12" cutthroat flume installed in the discharge stream. The meters <br />give a total discharge record, while the flume provides an instantaneous <br />reading. Both are monitored on a weekly basis. Of the two, the meters <br />provide a better record of the discharge. The discharge record obtained <br />from the two sources provides a method for estimating inflows which cannot <br />be measured in the mine due to safety constraints. The data for the pump <br />meters are summarized on Table 3. The discharge, per this source ranged <br />from 731 to 758 gpm for the period of January 2 to June 28, based upon <br />average to date discharges. <br />Table 3 - No. 5 Mine Discharge Data - Meter Records <br /> <br />Date <br />7/2/84 <br />7/9/84 <br />7/17/84 <br />7/23/84 <br />7/31/84 <br />8/6/84 <br />8/13/84 <br />8/20/84 <br />8/21/84 - <br />10/2/84 <br />10/9/84 <br />10/15/84 <br />Average Discharge Average Discharge <br />For Week (gpm) To Date (gpm) <br />889.19 <br />905.23 <br />498.83 <br />1,181.69 <br />522.74 <br />544.66 <br />979.95 <br />885.23 <br />10/1/84 pumps turned off to <br />765.07 <br />686.98 <br />810.25 <br />764.49 <br />767.58 <br />760.98 <br />768.64 <br />763.52 <br />759.14 <br />763.51 <br />765.88 <br />allow sump area to increase <br />765.85 <br />764.35 <br />765.09 <br />