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<br />The curves in Figure 5 illustrate the effect of one pattern of <br /> <br />intermittent pumping. The computations are shown in Table 3. <br /> <br />'. <br /> <br />Effects on the stream, both in volume removed and rate of removal are <br /> <br />compared for two patterns of pumping of 48 acre-ft during a 32-day <br /> <br />period. In both cases the aquifer has a ratio <br /> <br />4 <br />!!~ of 13.37 X 10 <br /> <br />fta/day and the well is 1,890 feet from the stream, making the sdf ; <br /> <br />26.7 days. In the first case the well is pumped at a rate of <br /> <br />4 acre-ft/day for 4 days, shut down 10 days, pumped 4 days, shut <br /> <br />down 10 days, and pumped 4 days. In the second case, the well is <br /> <br />pumped continuously at a rate of 1.5 acre-ft/day for 32 days. The <br /> <br />computed effects of the pattern of intermittent pumping are compared <br /> <br />to those of the steady rate in Figure 5. The comparisons indicate <br /> <br />that, within quite large ranges of intermittency, the effects of <br /> <br />intermittent pumping are approximately the same as those of steady, <br /> <br />continuous pumping of the same volume. <br /> <br />-?o <br />Q>o> <br /> <br />17 <br />