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• relationships in respect to the location of the alluvial <br />aquifer. <br />The Bureau of Land Management surveyed the springs and seeps <br />of the area during 1983. No springs or seeps were found in <br />the permit area. The BLM spring and seep survey (Figure 9: <br />BLM Spring Inventory) identified two springs along the <br />ephemeral stream bed west of the permit area (Section 23, T <br />5 S, R 29 W). Each of these springs had a discharge of <br />about 0.5 gallons per minute Cgpm) and was estimated to be <br />perennial in nature. A third spring was located just <br />downstream of the mine area (Section 19, T 5 S, R 91 W). On <br />June 20, 1983, the spring had a discharge of approximately <br />1.0 gpm. By September 5, 1983, the spring was no longer <br />flowing, indicating that the June 20, 1983 occurence of <br />water was a remnant of snowmelt runoff. <br />During August 30 and 31, 1983, field investigations of the <br />permit area were conducted to locate and identify potential <br />spring sources. The Hogback ridges, primarily along strike <br />of the coal seams to be mined, were hiked thoroughly in an <br />attempt to visually locate springs and/or seeps issuing from <br />ground water sources. Major drainages were visually <br />inspected. In addition, aerial photo coverage was reviewed <br />to obtain correlative information <phreatophytic growth, <br />etc.). Results of the field work confirmed the BLM survey <br />• that no springs or seeps were located within the permit <br />area. <br />Ground Water - Water Quality. Water quality data for bedrock <br />units in the permit and adjacent area are available from <br />well and spring samples collected by various entities. <br />Ground waters of the area were generally a mixed cation type <br />with magnesium dominant. The anion type was bicarbonate to <br />bicarbonate-sulfate. The results are displayed in Table 5a <br />Ground Water Quality and Table 6: Ground Water Data. <br />Samples have been collected from Eastside Mine: portal seep, <br />0.5 well and 1.5 well. Both the wells were a <br />magnesium-sulfate type with elevated TDS concentration <br />indicating longer residence time in the formation. The seep <br />samples ranged from a magnesium bicarbonate type to a <br />mixed-bicarbonate type with low TDS. No change was found <br />between the fall and spring samples. <br />• 40 Revised 5-87 <br />