|
<br />, 1" f")l".~
<br />vl"V
<br />
<br />APPENDIX TO
<br />ANNUAL REPORT
<br />COLORADO RIVER BOARD OF CALIFORNIA
<br />Year Ending December 31, 1979
<br />
<br />This Appendix presents data which supplements the Board's 1979
<br />Annual Report.
<br />
<br />RIVER OPERATION
<br />
<br />Water Supply
<br />
<br />During the 1978-79 water year (October 1 through September 30),
<br />8,262,000 acre-feet flowed past Lee Ferry, the Colorado River Compact
<br />point, compared to 8,244,000 acre-feet in 1977-78. Table 1 shows the
<br />last ten years' flow at Lee Ferry.
<br />
<br />TABLE 1
<br />
<br />MEASURED FLO\'l AT LEE FERRY
<br />1969-70 to 1978-79
<br />
<br />Water Year
<br />
<br />Acre-feet
<br />
<br />Total
<br />
<br />8,688,000
<br />8,607,000
<br />9,330,000
<br />10,141,000
<br />8,270,000
<br />9,274,000
<br />8,494,000
<br />8,234,000
<br />8,244,000
<br />8,262,000
<br />
<br />87,544,000
<br />
<br />8,754,000
<br />
<br />1969-70
<br />1970-71
<br />1971-72
<br />1972-73
<br />1973-74
<br />1974-75
<br />1975-76
<br />1976-77
<br />1977-78
<br />1978-79
<br />
<br />10-year average
<br />
<br />The 1978-79 water year was the 17th year since the closing of Glen
<br />Canyon Dam. As Table 1 indicates, 87,544,000 acre-feet passed Lee Ferry
<br />in the last ten years, thus meeting the obligation of Article III(d) of
<br />the Colorado River Compact, i.e., that the States of the Upper Division
<br />shall not cause the flow of the Colorado River at Lee Ferry to be depleted
<br />below an aggregate of 75,000,000 acre-feet for any period of ten consec-
<br />utive years. In addition to the Article III(d) Obligation, there are
<br />other obligations of the Compact, such as the Mexican Water Treaty
<br />obligation, which are being met.
<br />
<br />The major Upper Basin reservoirs, Fontenelle plus the CRSP Reservoirs,
<br />increased in storage by 4,893,000 acre-feet while other Upper Basin
<br />reservoirs and the transbasin diversion reservoirs increased in storage
<br />by 208,000 acre-feet, for a net increase of 5,101,000 acre-feet. After
<br />
|