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• streams cease flawing except for the occasional runoff from summer <br /> thundershowers. The lack of baseflov during the dry months <br />indicates no alluvial ground water contribution to either Foidel or <br />Middle Creeks. In November and through the following March, the <br />streams are frozen yell below the streambed and of course no floe <br />occurs. From the data collected and from field observations, the <br />lover reaches of Foidel and Middle Creeks are clasified as <br />intermittent streams with streambeds above the water table. <br />Fish Creek exhibits similar seasonal variations in streamflow <br />to Foidel and Middle Creeks, although Fish Creek is perennial with <br />an average base (lw) flow of about 1.0 cfs. Steele, et. al. <br />(1977), postulates that moat of this baseflov reaulta from ground <br />• water discharge into the stream: "During high flow, the ground <br />water contribution is a much smaller percentage of the atreamflow <br />and during low flw it probably accounts for nearly 100 percent of <br />the etreamflow at locations not affected appreciably by irrigation <br />return flows" (Steele, et. al, 1979). Boettcher (1972) estimates <br />that 25 percent of the measured flow at the gaging station on upper <br />Fish Creek reaulta from ground water discharge, and ground water <br />contribution is estimated to be 560 acre-feet per year. This year- <br />round contribution dampens the seasonal variations in Fish Creek and <br />the stream rarely freezes in winter due to the constant flow. The <br />period of March through June is the season of the heaviest floe, <br />when the combination of anowmelt, rainfall runoff and ground water <br />• discharge yield high runoff volumes in eaceas of 100 cfs. <br />2.04-50 <br />