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i~ <br />G.3.4 Springs <br />' Several springs have been identified prelim•narily based <br />on field observation, and these are shown on Figure G-9. A <br />' comprehensive spring survey of the mine projact area is <br />scheduled for the spring of 1989. Based on the preliminary <br />field observations, springs are expected along thE~ fault zones <br />and in the stream bed. No springs are expected in the <br />facilities area south of Rito Seco due to the poor hydraulic <br />' conductivity of the Santa Fe Conglomerate which forms the upper <br />most unit in this area. <br />' G.3.5 Groundwater Quality <br />' To date, eight sets of baseline water quality data have <br />been obtained from the existing groundwater monitoring <br />stations. With the exception of radiological data from the <br />January 1989 samples, all of the analytical results have been <br />received. Separate tables presenting water quality data for <br />each groundwater station are summerized in chronological order <br />for each site in Tables G.3-1 through G.3-8. <br />The groundwater quality data indicate a predominantly <br />I calcium-bicarbonate and calcium-sulfate type wate^ in the ore <br />zone, with a predominantly calcium-bicarbonate type water in <br />' the overlying Santa Fe Conglomerate. <br />Groundwater obtained from the ore zone wells exhibits <br />a much greater degree of mineralization than that observed in <br />the surface flows, and the presence of significant radiological <br />activity. Radiological activity noted in the first groundwater <br />samples from the ore zone is indicative of residence time in <br />Precambrian rock. <br />There is little indication of metals in either the <br />groundwater, with the exception of occasional iron, manganese, <br />G-42 <br />1 <br />