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1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />~_ <br />z <br />S <br />3 <br />0 <br />x <br />N <br />Z <br />3 <br />O <br />0 <br />0 <br />rn <br />w <br />1 <br />POWDERHORN COAL, CO. (CRDA#1) <br />PZ 82-4, TIME-DRAWDOWN PLOT <br />10 100 1000 <br />RATIO, Ut' <br />t = TIME SINCE PUMPING STARTED, t' =TIME SINCE PUMPING STOPPED. <br />s' =RECOVERY DEPTH TO ORIGINAL WATER SURFACE. <br />PLaTE I <br />1 10 100 1000 <br />TIME SINCE PUMPING STARTED (min) <br />POWDERHORN COAL, CO (CRDA#1) <br />PZ 82-4, RESIDUAL-DRAWDOWN PLOT <br />