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SOUTH PLATTE BASIN <br /> Basinwide Conditions Assessment: <br /> The SWSI value of +2.1 indicates that the current SURFACE WATER SUPPLY INDEX <br /> conditions are above normal. This is the highest value S South Platte silver eosin <br /> recorded in the state. Precipitation was 127% of normal for 4 <br /> the month of August with the area between Fort Morgan and , I <br /> w'-.� `� , I11111 III I JIIU II 11 u <br /> Akron receiving precipitation 200% of normal. The northern . 3 1 I IIIIII III I,Ill' II II II <br /> 11 I IIII11 Ill IU111II III 1I1111. ! <br /> tributaries including the Cache la Poudre, St. Vrain, Big s I 11 I 111111 lIII IIII1111 IIIIIli1 i.1111111 11 <br /> Thompson, and Boulder Creek have adequate supplies of 9 I II I I I I ' 111111 IIIIII 11111111 I'I'I'I 'WWII 1 111 1 I, <br /> P q PP+� 4 1 id, , II III, I Him IIIIII (IIIIIII IIIIIII 111111111 I.11111 II <br /> water while the southern tributaries including the South Park 111,, I III ,I11 I 'hill 1 IIIIII Illllul 1111111 1111,11111 11IIIIIII( 11 <br /> O Illfl II (III ,sill • 'mil }11111 Illllllf IIIIIII 1111�illll IIIIlillll I III <br /> I <br /> and Tarryall drainages have less than adequate supplies. -1 ; II I i;", <br /> Irrigation demands were reduced as the harvest of potatoes, , <br /> onions, beans and silage corn began; however, irrigation of o -' <br /> remaining crops, including alfalfa, shell corn, and beets -' <br /> increased at the end of August due to hot weather. -• - -, <br /> Cumulative flow at the keystation, South Platte River104T'"'"' JAB JA�.3 `""" ,,,TEAR <br /> ..14N15 JAMS ''"""' Jean -OMR ''"`° `'""" <br /> gaging <br /> near Kersey, remains 30% below normal for the current <br /> water year, but still remains above the minimum flow <br /> recorded in 1964. Dillon Reservoir is currently storing about <br /> 250,000 acre-feet of usable water. Soil moisture is classifed <br /> as being above normal. <br /> • SOUTH PLATTE RIVER NR. KERSEY <br /> FV.ali 9Y LATER YamOutlook: Z.li <br /> The 30-90 day outlook is favorable . Irrigation 2.6 — �-- <br /> demands are likely to remain below normal in September 2.4 <br /> 2.2 . <br /> due to above normal soil moisture. Municipal water supplies 1I 2 <br /> from the upper South Platte basin will be short. Flows in 1 1.6 - <br /> the South Platte River above Denver will likely remain low. 4 1.6 <br /> Flows in the South Platte River below Denver will begin to ;= ''4 <br /> t 1.2 <br /> drop as irrigation return flows diminish. 1 <br /> Administrative/Management Concerns: 0.6 - <br /> 0.4 <br /> Water rights administration is operating in a normal 0.2 <br /> manner. "River calls" are being regularly adjusted to minor 0 —� <br /> OC1. br Doc Jan Febren April May Jun•e July Aug Sept <br /> changes in supply and demand. ►r„�,,,, <br /> O HIGH(1l83) + 1.05(1964) a AVG. A 1930 <br /> Public Use Impacts: <br /> Public water use should be relatively normal. Cherry <br /> Creek Reservoir will continue to lower due to evaporation <br /> losses. South Platte Basin Reservoir Supplies <br /> no <br /> 1 103 /�^�`\ <br /> h1E0 J//�\` <br /> 140- <br /> /AN <br /> 120 <br /> 00 /J \ 7 <br /> -A, <br /> "„ /,, 4.\\ •-\\, //-. r 7+-" r77F <br /> Dillon NOriStOOth SIwen Si I. Cheemen JaCkSOn drr Lake <br /> ® Avg.8/31 Content. ® e/3V10 Contents <br /> 3 <br />