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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />iV. What Reclamation Learned <br /> <br />Introduction <br /> <br />The following discussion represents an initial summary of <br />findings, These findings may be modified upon further <br />analysis in the EIS, <br /> <br />HYDROLOGY <br /> <br />Outcome <br /> <br />In spite of the rainfall events, the Test indicated that dam <br />releases of 250 cfs will provide sufficient water in the river <br />to meet water rights between the dam and the confluence <br />with the Animas River. Though three diversion structures <br />encountered problems diverting water during the Test, these <br />problems resulted from inadequate diversion facilities, not <br />insufficient water supply. (See the "Diversion Structures <br />and Water Rights" section for more details,) <br /> <br />Table 1 summarizes San Juan River flows measured during <br />the Test between the dam and Farmington. The maximum <br />riverflow was 272 cfs measured at Archuleta (approxi- <br />mately 7 miles downstream from the dam), The minimum <br />flow was about 60 cfs measured below the Hammond <br />Diversion Dam. Since the remainder of the river gains <br />water from irrigation return flow and canal wastewater, the <br />riverflow above the Animas River confluence increased to <br />218 cfs, with significant contribution from thunderstorm <br />runoff. <br /> <br />Summer Low Flow Test Report - April 2002 <br /> <br />-9- <br />00594 <br />