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w • <br />' . MINING AND RECLAMATION PLAN <br />MT. GUNNISON NO. l MINE <br />2.8.2.1 Groundwater Level <br /> <br />October, 1979 <br />Revised March, L931 <br />Revised August 28, 1981 <br />Revised January 25, 1982 <br />Revised February 5, 1982 <br />Monitoring of the groundwater levels at the 17 observation wells has been <br />conducted. Monthly visits to the sites are made to record the static water level in <br />each of the wells. Location of the groundwater monitoring stations is shown in <br />Exhibit 2.8.1.C. The water level variation with time for each of the wells is shown <br />in Tables 2.8.2.A through 2.8.2. U. Well completions for the First Five Year Mine <br />Plan are shown in Tables 2.8.2-U1 through 2.8.2.-U4. <br />2.8.2.2 Groundwater Quality <br />A water sample was taken from the Sylvester Gulch Test Adit on May 29, 1980. <br />Table 2.8.2 presents the results of the analysis of this sample. <br />Wells completed into the Barren ~\lember above the "F" seam coal were completed <br />and open to many different sands. Using this data and the elevations of known <br />springs, a composite water level map .vas prepared for the Barren Member over the <br />lease block (Exhibit 2.8.2.A). As expected due to the topography and the <br />discontinuous nature of the sands and perched aquifers, the map shows that water <br />levels in the Barren Member correlate closely with changes in topography. <br /> <br />2-303aS <br />n <br />