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.;::•; ••:>: :: ___-- Gross depletion <br /> Net streamflow depletion <br /> Gain from pit discharge <br /> Net streamflow gain Net river flowrate <br /> ........... <br /> m <br /> y <br /> 3 ' <br /> O , <br /> w End of active <br /> y mining period <br /> y <br /> m <br /> .......... .A A"O.. mal <br /> ow a 1 r t e <br /> i <br /> 1 <br /> T r+--- T <br /> Years from commencement of pit dewatering <br /> T = Groundwater transit time <br /> between pit and river <br /> Figure 1 <br /> Impact of Pit Dewatering on <br /> Cache la Poudre River <br />