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21 <br />Since the data contain an extremely dry year (1977) and an extremely wet <br />year (1980), it is believed that reasonable approximations of mean annual <br />discharge for Foidel and Middle Creeks are 1.8 cfs (0.12 ft) and 3.1 cfs <br />(0.15 ft), respectively. The mean minimum for both drainages is estimated <br />to be very nearly zero and again occurs during the period from late summer <br />through winter. <br />Due to the similarity of the Lower Fish Creek Drainage Basin to the <br />Middle Creek Watershed, it is believed that the mean annual runoff from <br />this portion of the Fish Creek watershed is also approximately 0.15 feet <br />over an area of 42.7 sq. mi. This converts to a mean annual discharge of <br />5.7 cfs. Such an estimate results in a mean annual discharge of 18.4 cfs <br />(. 27 ft) for the entire Fish Creek watershed. This compares favorably <br />with that measured at Station AR-1003 for the years of 1977-1978 (0.22 ft) <br />and 1978-1979 (0.29 ft). <br />Table 6 presents a summary of the estimates of average annual runoff <br />for the three watersheds. In the volume entitled "Compliation of Field <br />Data", summary information about each gaging station and average daily <br />discharges by week are provided. <br />