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• SOUTH PLATTE BASIN <br /> Basinwide Conditions Assessment: <br /> The SWSI value of+1.9 indicates that for October the SURFACE WATER SUPPLY INDEX <br /> basin water supplies were above normal. Reservoir storage, DmIn <br /> s '""" ""'"""" <br /> the key component in this basin in computing the SWSI value, , <br /> was 120% of average on November 1. Storage in the major <br /> plains reservoirs, Julesburg, North Sterling, and Prewitt, III H lls I !III 1 I II <br /> ■ III I fill I !III !.III II I. <br /> r� ,�/�� I, 11111 110 I 1 .1111 ,111f11 11 111111 <br /> increased by 24 588 acre-feet during October and are at 40% III 1111 1 1111 I i it 1I I I I1 II 11111,1 11 I 11 <br /> : I ,Il 1111: Ili !'If1 11i1111 111.If 111111111 1 III I 111 1 III <br /> 1 1111 ,11111, 1111 1 I,11 1111 WWI I 111111 11 111111' 1 I I I 1 MI 11111 <br /> Cheesman, <br /> capacity. Storage in the major upper <br /> A_basin reservoirs, i ' I III I1111' l i i i 1 1111 III, 1111111 I I II II 11 1111111 1 11111 111 1111 <br /> Cheesran even LvIile Spinney and Antero decreased 11111 1,1111 II IIIIII!1 1111111 IIIIII IIIIII,IIIIIIiIlll II IfIII1 <br /> ' 1111 1 1111'1 1111 1111 lilllll 1111 II IIIIIIIIII 11 III1111 111�11 II1111 <br /> f ! f � D 11"1111111111;r1 <br /> !Ilslightly and are at 88% of capacity. Precipitation for the I I' <br /> month was 78%of average. Flow at the gaging station, South <br /> Platte River near Kersey, averaged 676 cfs for the month as <br /> compared to the 1961-1991 October average of 850 cfs. Flow "' <br /> at the Colorado/Nebraska stateline averaged 156 cfs for the -• <br /> JMN2 JA1M3 JAM,* JANES JAMB JAeN, -A"M .iIJNs JYy° JAh/, <br /> month. Ground water recharge projects on the lower river are IasTW TSAR <br /> operating. <br /> Outlook: <br /> Irrigation and municipal water supplies appear to be <br /> adequate. SOUTH PLATTE RIVER NEAR KERSEY <br /> Administrative/Management Concerns: <br /> The Cheesman Reservoir call (06-27-1889) was in 5 <br /> 0 <br /> effect for the entire month. The Denver Intake call (12-06- <br /> 1910) was in effect in the reach below Cheesman. The lower '° <br /> river was controlled by the District 1 Recharge call (12-31- <br /> 1972) through October 11. The interstate compact (South if <br /> Platte) with Nebraska adjusted on October 15 annually, <br /> basically giving Colorado full use of the available stream flow. <br /> Up to that date, flows at the Stateline (Julesburg index ,D <br /> station) were required to be 120 cfs. <br /> 'Mu HMO DCT0men AVIp o= wrong,1♦Y, <br /> Public Use Impacts: <br /> Flow in the South Platte below Cheesman Reservoir <br /> was reduces to 44 cfs in the early portion of October. <br /> Releases were increased up to approximately 260 cfs during <br /> the third week of the month, and were again reduced by the <br /> end of October. South Platte Basin Reservoir Supplies <br /> 7.0 <br /> 220 <br /> 200 <br /> ^ ,°° /�^_`\ <br /> 440 <br /> / <br /> D <br /> Di I can 4e4,4i44044 II•.•n re I• C"•wn•rt J•cle•on IlYI I L•k• <br /> ® A.p. ,a/71 C•'n•M.• ® /VI 31/ ,GIn•M• <br /> 3 <br />