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Figure 1 <br />Historic Acreage and Irrigation Water Requirement <br />1800000 <br />1600000 <br />1400000 <br />,~ 1200000 <br />N <br />V <br />~ 1000000 <br />O <br />~ 800000 <br />V <br />R <br />600000 <br />400000 <br />200000 <br />~ i <br />r • ~ <br />~ ~ ~~• <br />~ i i <br />~ ~ ~ ~ ~ . ~~ <br />~~ w <br />~ ,I ~ ~ • <br />1950 1955 1960 1965 1970 1975 1980 1985 1990 1995 2000 <br />Historic Acreage - - Irrigation Water Requirement <br />Figure 2 presents the historic irrigation water requirements and the consumptive use, <br />limited by supply. The average annual irrigation water requirement from 1950 through <br />2002 was approximately 1,118,383 acre-feet while the average annual water supply <br />limited consumptive use was approximately 759,045 acre-feet. As shown, the percent of <br />irrigation water requirement not satisfied has decreased slightly over time, averaging 32 <br />percent over the study period. Greater shortages from 1950 through 1956, averaging 43 <br />percent, represent limited water supply due to well development levels and below <br />average stream flows. Shortages averaging 27 percent from 1990 through 1999 are <br />consistent with well development and normal to above average stream flows. <br />cureport_6-2004.doc 3 of 48 June, 2004 <br />