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<br />.,~- <br /> <br /> abandoned. Additional pumps would be installed in Ridges Basin Pumping Plant to meet Phase II <br /> water supply needs. The Phase II capacity of the plant would be 700 cfs. <br />. Table 5. -La Plata River at the Colorado-New Mexico State line-USGS gaging station <br /> Historic versus future for Phase II and Phase II <br /> Period of record 1929-89 <br /> (cfs)' <br /> Historical USGS data Phase l, Stage B Phase II <br /> Month Mean} Max' Min} Mean} Max' Min} Mean} Max' Min} <br /> Jan 11.2 38.3 0.8 31.0 61.0 13.8 11.3 30.0 9.5 <br /> Feb 15.7 53.5 3.0 33.1 72.9 13.5 11.\ 34.7 9.4 <br /> Mar 33.1 105.7 0.6 51.0 122.0 11.6 12.2 89.5 9.2 <br /> Apr 107.9 363.5 3.0 124.7 372.0 8.7 37.4 292.0 9.1 <br /> May 108.7 505.9 5.3 151.1 551.7 8.8 71.6 463.1 9.1 <br /> Jun 69.0 306.5 4.0 81.8 369.4 8.8 41.4 297.5 9.1 <br /> Jul 21.0 99.4 1.0 17.5 107.0 9.6 10.8 17.1 9.4 <br /> Aug 11.8 65.1 0.2 17.1 73.9 9.4 11.2 12.3 9.7 <br /> Sep 9.4 73.3 0.0 19.2 97.8 9.8 11.8 29.9 9.8 <br /> Oct 14.2 260.2 0.1 26.5 268.7 9.5 14.6 122.5 9.9 <br />. Nov 11.5 99.2 1.0 36.1 116.6 17.3 13.1 84.3 9.9 <br />Dee 11.2 53.9 1.2 33.1 70.3 16.2 11.5 16.0 9.8 <br /> t Phase I. Stage A flows in the La Plata River would be increased minimally because ofretum flows of approximately 1,000 acre-feet per <br /> year. <br /> 'Mean flow (diI), cxpreosed as average annual acre-feel (rounded) would be; 2',600 (historic USGS data), <br /> 37,600 (Phase l, Stage B~ 1',600 (Phase Il). <br /> ) Mean: Mean monthly discharge during period of record; Max: maximum daily mean discharge during period of record; Min: minimum <br /> daily mean discl1arge during period of record. <br /> Phase II - Operation <br /> <br />With the completion of Phase II, all lands would be able to receive irrigation water. All Project <br />lands would receive a pressurized supply of water sufficient to operate sprinkler systems with the <br />exception of Project lands above Dry Side Canal, which would be supplied Project water by <br />exchange. Delivery ofM&! water for the Southern Ute Indian Tribe could be at Ridges Basin <br />Reservoir or Southern Ute Reservoir. Under Phase II, delivery of Ute MOWltain Ute M&! water <br />would be atthe end of Dry Side Canal, near the eastern border of the Ute MOWltain Ute <br />Reservation. Delivery of all non-Indian M&! water would be the same as in Phase !,Stage B. <br /> <br />. <br /> <br />Historical flows in the La Plata River downstream from Dry Side Canal would be moderately <br />increased as a result of water released into the river from Dry Side Canal and Project return flows. <br />An average of 15,100 acre-feet would be released into the La Plata River from Dry Side Canal <br />each year to meet downstream Project demands and minimum bypass flows at the Southern Ute <br />Diversion Dam. <br /> <br />31 <br />