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<br />n,Jl~58 <br /> <br />SOUTH PLATTE BASIN <br /> <br />Dec-01 <br /> <br />, <br /> <br />Basinwide Conditions Assessment <br />The SWSi value of -2.4 indicates that for November <br />the basin water supplies were below normal. Reservoir <br />storage, the major component in this basin in computing the <br />SWSI value, was 83% of normal as of the end of November. <br />Cumulative storage in the major plains reservoirs: Julesberg, <br />North Sterling, and Prewitt, is at 47% of capacity. <br />Cumulative storage in the major upper-basin reservoirs: <br />Cheesman, Eleven Mile, Spinney, and Antero is at 82% of <br />capacity. The Natural Resources Conservation Service <br />reports that December 1 snowpack is 52% of normal. Flow <br />at the gaging station South Platte River near Kersey was <br />728 cfs, as compared to the long-term average of 950 cfs. <br />Flow at the Colorado/Nebraska state line averaged 210 cfs. <br /> <br />.. <br /> <br />Outlook. <br />Even though overall reservoir storage is less than <br />average and conditions have generally been dry the last <br />month, there is not a large concern about ftlling reservoirs at <br />this time. One concern is the low levels of reservoirs <br />associated with the Colorado Big Thompson project, a major <br />source of supplemental supply for the South Platte Basin. <br />Unlike each year in the past eight years, the storage in this <br />transbasin system is far below average for this time of year. <br />While it is unlikeiy that low storage conditions would effect <br />the quota from this project this coming year, a long term dry <br />period potentially could impact supplies from this project. <br /> <br />Administratlve/Manaaemen! Concerns <br />Reservoir storage continued in November for the <br />plains reservoirs on the South Platte. In addition to storage, <br />there was continued recharge on the plains. Unlike ,last <br />year, there was no call .for storage on the mainstem <br />downstream of Denver as the new water year began in <br />November. The Barr Lake call was placed for diversions <br />through the Burlington ditch north of Denver, which is typical <br />for this time of year. <br /> <br />.' <br /> <br />S)Jl'H MTTEeASlNSN3l HsrcRf <br /> <br />e <br />o <br />. <br /> <br /> <br />* <br /> <br />w <br />" <br />~ <br />x <br />w <br />o <br />. <br /> <br />~ <br />o <br /> <br />J,r.Q2Jln.<<l~..l<<'>fl$J.ln.f.OJIrt/ll~Ji:tIOOJIr,.CO~ <br />M:MH/",," <br /> <br />i' <br /> <br />s:x.m-t Pl.ATTE RIVeR NR KERSEY.' FtON BY WATeR YEAR <br /> <br />700.000 <br /> <br /> <br />600.000 <br />~ ] <br />'" I <br />g &0.000. <br /><< . <br />~400,000; <br />it i <br />ill ) <br />i: 3OO,lXlO; <br /><< <br />:5 <br />:E 200,000 <br />" <br />" <br /> <br />100.000 <br /> <br />o <br />O;t <br /> <br />I <br /> <br />""" <br /> <br />c.c <br /> <br />.Ian <br /> <br />"'" <br /> <br />Moth <br /> <br />...., <br /> <br />-0- w=:r {1S83} <br /> <br />__CRf(1964) <br /> <br />~AVG <br /> <br />-<(-2002 <br /> <br />RePReS5NiATlVERESeRVOIRS <br /> <br />..."'" <br /> <br /> <br />"""'" <br /> <br />~ <br />'" <br />g '60.000 <br /> <br />f <br />~ 100.(00) <br />1l,J <br /> <br /> <br /> <br />o <br /> <br />Dillon ~ Seven Mlle Chee6m3n Jackson Batt-take <br /> <br />IIA~, "I3OContents <br /> <br />Z1'13OI01Ccnten:s <br /> <br />3 <br /> <br />'>..'> .,.. <br /> <br />'{ <br />;','" <br />),': } <br />., _..:it, .;:;:.;..L_~~k '~_i~ <br />