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SOUTH PLATTE BASIN <br /> Basinwide Conditions Assessment: <br /> The SWSI value of +1.4 indicates that for July the SOUTH PLATTE RIVER BASIN <br /> urorbasin water supplies were above normal. Reservoir storage, s 5 face W t S oIy nax"letc.y <br /> the key component in this basin in computing the SWSI value, ._ <br /> was 104% of average on August 1. Storage in the major W i R ' 'r I II I. I u <br /> plains reservoirs, Julesburg, North Sterling, and Prewitt, _ , MI I 1.1111 1 I 1 111 <br /> g g 111� � � ■I 11111111 IIII IIII II I <br /> decreased by 32,829 acre-feet during July and are at 75% of 2- i11i a ��I iililiiii iiaill liiiiiii I i1 i iil <br /> 1111' ,111111111 11111111 11111111 1 III 1111 <br /> capacity. Storage in the major upper basin reservoirs, !ii111p ma''moultilliir 1,11111111 111111111 <br /> 11111111.. 1111 <br /> Cheesman, Eleven Mile, Spinney, and Antero, increased by D 1' ' ;li ' " II till <br /> 14 <br /> 7,793 acre-feet and are at 96% of capacity. Flow at the _1_ 1; ' <br /> gaging station, South Platte River near Kersey, averaged 540 2 , I ' 1 <br /> cfs for the month as compared to the 1961-1991 July average a1 <br /> of 860 cfs. Flow at the Colorado/Nebraska stateline averaged 3 r 1 <br /> 306 cfs for the month. 4 <br /> JAN83 JAN94 JAN85 ..ANSE JAN97 JANB6 JAN89 JAN95 JAN91 JAN92 <br /> IbNTW YEAR <br /> Administrative/Management Concerns . <br /> Rains in the lower South Platte valley helped the <br /> plains irrigators. The earliest call in effect on the South Platte <br /> during July was the Evans #2 (10-20-1871) placed in District <br /> 2. SOUTH PLATTE RIVER NR. KERSEY <br /> FLOW BY WATER YEAR <br /> 28 T <br /> 2 6 1 <br /> 2• )//: <br /> 2 2 ,SSi 2. 1a I <br /> 4� 1 8 <br /> G1 4 <br /> a- <br /> �u3 1 2- <br /> S- 1 <br /> 1 09 <br /> 0 6 <br /> D 4- <br /> D 2 <br /> 0 1 r <br /> Oct Nov Dec Jan fat. March Awl! May Jun. July AcO Soot <br /> MONT" <br /> 0 WET C1003) . DRY C1994) O AVG. A 1992 <br /> REPRESENTATIVE RESERVOIRS <br /> 90UTF!PLATTE RIVER BASIN <br /> 280 <br /> 20 � <br /> 2200 J�� <br /> 20 ////_�\'� <br /> b^e 160 " <br /> 140 <br /> ni <br /> 100 �� <br /> or <br /> ul v <br /> ..A. 7 . v\ <br /> Dillon Fbrsatooth Eleven Mlle Ch..9nnn Jackson Bs',Lak. <br /> ® Au. 7/31 Cont.nt. ® 7/31/92 Contonte <br /> 3 <br />