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<br />, i~I~~ <br /> <br />i!J~fl~f,i <br /> <br />nrJ;''7''3 <br />v ,~, ....: J ~... <br /> <br />Inspection of historic flows for the water years 1945-1950 (for which <br /> <br />concurrent data is available at these four stations) shows an average loss of <br /> <br />-25,000 acre-feet between these stations. Average annual flows and <br /> <br />differences for water years 1945-1950 at these stations are given in Table 6. <br /> <br />Station <br /> <br />Table 6 <br />Differences in flow <br />Historic period of concurrent data <br />Water Year <br />1945 1946 1947 1948 <br />Annual Flows (1,000 Acre-Feet) <br />429.1 397.2 544.1 673.2 <br /> <br />09114500 <br /> <br />11 <br />1949 1950 <br />539.0 469.5 <br />81.2 60.0 <br />244.4 219.7 <br />242.7 224.5 <br />-29.3 -34.7 <br /> <br />-09114000 <br /> <br />66.8 <br /> <br />48.4 <br /> <br />93.4 <br /> <br />79.0 <br /> <br />-09112500 <br /> <br />216.8 <br /> <br />194.0 <br /> <br />270.9 <br /> <br />279.8 <br /> <br />155.8 <br />-10.3 <br /> <br />191.3 <br />-36.5 <br /> <br />216.5 <br />-22.3 <br /> <br />317.2 <br />-17.2 <br /> <br />-0911 0000 <br />Difference: <br />Average <br />Difference: -25.05 <br />I/Gunnison River near Gunnison (09114500)minus Ohio Creek near <br />Gunnison (09114000)minus East River at AImont (09112500) minus Taylor River <br />at AImont (09110000). <br /> <br />Discussion with USGS personnel indicated no known gaging problems at <br /> <br />these sites. Average annual flow for the Gunnison River near the Gunnison <br /> <br />station (09114500) for water years 1945-1950 is 508,700 acre-feet. A five <br /> <br />percent gaging error would represent 25,400 acre-feet. Why this error would <br /> <br />consistently occur on the low side, however, is not known. <br /> <br />The third difference 'file was developed for the stations above Tomichi <br /> <br />Creek at Gunnison (09119000) and below the Tomichi Creek at Parlin (09117000), <br /> <br /> <br />Quartz Creek near Ohio (09118000), and Cochetopa Creek near Parlin (09118500) <br /> <br />(see Figure 1). Core station files used in developing this difference file <br /> <br />are listed in Table 7. <br /> <br />14 <br />