<br />fer any period of ten consecutive years. In addition to the Article
<br />III(d) obligation, there are other obligations of the Compact, such
<br />as the Mexican Water Treaty obligation, which are being met.
<br />. t:t ,.-
<br />iv~ ( The major Upper Basin reservoirs, Fontenelle plus the Colorado
<br />River Storage Project (CRSP) reservoirs, increased in storage by
<br />2,178,000 acre-feet while other Upper Basin reservoirs and the trans-
<br />oasin diversion reservoirs increased in storage by 304,000 acre-feet,
<br />far a net increase of 2,482,000 acre-feet. After adjusting for these
<br />reservoir changes and an increase in reservoir bank storage of 260,000
<br />acre-feet, the flow at Lee Ferry would have been 13,709,000 acre-feet,
<br />compared to 14,130,000 acre-feet in 1978-79. Table 2 shows the last
<br />ten years' flow at Lee Ferry adjusted for storage changes;
<br />
<br />TABLE 2
<br />
<br />FLCW AT LEE FERRY ADJUSTED FOR
<br />RESERVOIR STORAGE CHANGES
<br />1970-71 to 1979-80
<br />
<br />Water Year
<br />
<br />Acre-feet
<br />
<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 />1979-80
<br />
<br />11,703,000
<br />8,677,000
<br />15,946,000
<br />9,487,000
<br />13,292,000
<br />7,642,000
<br />2,037,000
<br />11,362,000
<br />14,130,000
<br />13,709,000
<br />
<br />107,985,000
<br />
<br />10,798,000
<br />
<br />Total
<br />10-year average
<br />
<br />The Water and Power Resources Service (formerly Bureau of
<br />Reclamation) estimates, that if there had been no man-made depletions
<br />upstream, the virgin flow of the Colorado River at Lee Ferry would
<br />r~ve been about 17,497,000 acre~feet, compared to 17,793,000 acre-feet
<br />in 197B-79. Table 3 shows the last ten years' virgin flow at Lee Ferry.
<br />
<br />TABLE 3
<br />VIRGIN FLOW AT LEE FERRY
<br />1970-71 to 1979-80
<br />
<br />Water Year
<br />1970-71
<br />1971-72
<br />1972-73
<br />1973-74
<br />
<br />Acre-feet
<br />15,133,000
<br />12,194,000
<br />19,395,000
<br />13,325,000
<br />
<br />-2-
<br />
<br />,
<br />
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