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<br />7'il <br /> <br />o Notification from responsible governmental agencies that public health or safety was <br />being compromised by the test. <br />o Gage data showing flows below 500 cfs downstream from Farmington. <br /> <br />Results of the test will be compiled in written format and provided to the public upon request. In <br />particular, resource specialists observing the test will summarize their monitoring activities in <br />conjunction with the impacts the low flows have on summer water temperature, irrigation water <br />supplies (diversion structures), fish habitat, and recreation. News releases will announce the test <br />and Reclamation officials will be available to provide information to members of the media <br />during and after the test. <br /> <br />The no action alternative to the proposed test would be to maintain normal reservoir releases at <br />500 cfs during the proposed test period. <br /> <br />EXISTING ENVIRONMENT AND ENVIRONMENTAL CONSEQUENCES <br /> <br />Introduction <br /> <br />For purposes of impact analysis, the area of impact includes Navajo Reservoir and the San Juan <br />River and its flood plain downstream from the reservoir. Under some resource topics, for <br />example, economics and social factors, the area of impact includes a larger geographic area. <br /> <br />The immediate project area includes Navajo Reservoir in New Mexico and Colorado and the San <br />Juan River in Colorado (Four Corners Monument), New Mexico and Utah. The San Juan River <br />Basin encompasses approximately 25,000 square miles and the river extends 350 miles from its <br />headwaters to Lake Powell. Navajo Dam was constructed between 1958 and 1963 and Navajo <br />Reservoir extends into both Colorado and New Mexico. Navajo Reservoir has a capacity of 1.7 <br />million acre-feet, a surface area of 15,610 acres, and 150 miles of shoreline. Approximately 225 <br />miles of the San Juan River are between Navajo Dam and Lake Powell. <br /> <br />Historically, Navajo Reservoir was operated to provide water storage and control San Juan River <br />flows. Since 1962, it has been operated in a manner that reduced peak spring flows and <br />supplemented flows in other seasons. Flows were generally near or above 1,000 cfs during the <br />early operation years. Since 1992, a minimum flow of 500 cfs has been maintained and high <br />spring releases or peak flows (5,000 cfs) have been provided to support the SJRBRIP for <br />endangered fish. <br /> <br />4 <br />