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For this unit, the CULR used the Green Mountain Dam station. For reasons stated previously, the <br />continued use of this station is not recommended, instead it is recommended that the Kremmling <br />station be used to estimate consumptive use on irrigated lands. <br />Hydrologic Unit 14010002, Summit County <br />For this unit, the CULR used the Green Mountain Dam station. Based upon an analysis of <br />precipitation and the location of irrigated lands, it is recommended that the precipitation at Green <br />Mountain Dam and temperature data at Kremmling be utilized to estimate consumptive use of <br />irrigated lands in this unit. <br />Hydrologic Unit 14010003, Eagle County <br />For this unit, the USBR utilizes only the Eagle FAA airport station. Since 1985 a weather station has <br />been maintained at Vail. The average annual precipitation from 1985 through 1990 at Vail and Eagle <br />is 16.8 and 11.0 inches, respectively. Weather data was collected at Avon from 1981 through 1989 <br />and the average annual precipitation was 11.97 inches during that period. Because of the large <br />amount of golf course irrigation in the Vail vicinity and the difference in precipitation between Vail <br />and Eagle FAA, it is recommended that the Eagle FAA airport station be used for irrigated areas <br />downstream of Wolcott and the Vail station be used for irrigated areas upstream of Wolcott. <br />The Eagle FAA airport station was discontinued as a climatological station on July 21, 1994. Based <br />upon personal communication with Nolan Doesken, it is possible that the station may be restarted. If <br />the station is not put back into service, it is recommended that the Glenwood Springs station be used <br />in its place. <br />Hydrologic Unit 14010004, Eagle County <br />The USBR's use of the Meredith and Glenwood Springs stations is acceptable; however, review of <br />the map of irrigated areas found that the irrigated area should not be split 50-50 between the two <br />stations. The Meredith station should be used for estimating crop consumptive use for irrigated areas <br />tributary to the Fryingpan River. The Glenwood Springs station should be used for estimating crop <br />consumptive use for irrigated areas not tributary to the Fryingpan River. The USBR recommendation <br />of dropping Meredith should not be used because the elevation difference between the irrigated land <br />tributary to the Fryingpan River and Meredith station is less than the elevation difference between <br />the irrigated land and Glenwood Springs. <br />Hydrologic Unit 14010005, Mesa County. <br />The CULR used Grand Junction and Fruita 1 W weather stations for this unit. There are four <br />weather stations, Fruita 1 W, Grand Junction Airport, Grand Junction 6 ESE, Collbran, and Palisade <br />which were considered for use in this unit. Based upon a review of topography and precipitation <br />records, consumptive use for the irrigated lands upstream of the confluence of the Colorado River <br />and Plateau Creek should be calculated using Collbran. Collbran's average annual precipitation is <br />about 3 to 4 inches greater than at the other stations and most of the irrigated land for this area is in <br />the vicinity of Collbran. <br />The somewhat agricultural location of the Grand Junction 6 ESE station is much better than the <br />Grand Junction Airport location; therefore, its use is recommended for the irrigated area east of the <br />airport and downstream of the confluence of the Colorado River and Plateau Creek. Fruita 1 W is <br />3 <br />12.3.96 12.09-14 - Walter <br />