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<br />. <br /> <br />. <br /> <br />. <br /> <br />OOJ8~3 <br /> <br />UPPER COLORADO RIVER COMMISSION <br />Ray Building / Room 103 <br />366 South Fifth East Street <br />Salt Lake City 2, Utah <br /> <br />To: <br /> <br />Upper Colorado River Commission <br /> <br />From: <br /> <br />IvaI v. Goslin <br />Chief Engineer & Secretary <br /> <br />Subject: <br /> <br />Water Supply Study San Juan River Basin <br /> <br />our office. <br /> <br />'Attached is a copy of a study of the San Juan ~ver made in <br /> <br />The study was intentionally predicated upon a period of <br />years containing the most adverse series of stream flows on record. <br />Ip addition, ~t the beginning of the study period it was assumed <br />tMt l'favajo R'.servoir stood at the dead storage level due t9 having <br />been spilled ~9 that pOint in the previous year to aid powel' production <br />at Glen CanYOIl, and to impose an additional severe condition in the <br />study that prObably may not, but that could occur. <br /> <br />.The method assumed for the operation of Navajo Reservoir <br />was su,ch that'we could refrain from interpreting diversioncommitment/ll <br />beyond those that are presently committed or planned for the immediate <br />fut\ll'e. <br /> <br />. Other assumptions were made on the basis of information <br />we, had available at the time. We believe you will find almost all of <br />thEil assumptions used are properlY referenced. <br /> <br />. This study has been in pfogress intermittently for several <br />months and was revised to its prlilsel'lt form in April. <br /> <br />- i- <br /> <br />.._~.- " .." <br /> <br />i - - <br />