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<br />HIGHLIGHTS OF 1977 OPERATION
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<br />Record Low Runoff
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<br />Water Year 19771/ runoff was below normal at all Western Division
<br />System Reservoirs. April-July runoff volumes generally totaled
<br />40 to 50 percent of normal. Reservoir inflows and streams that
<br />set new record low runoff totals during Water Year 1977 were:
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<br />Green Mountain Reservoir-
<br />Boysen Reservoir- - - - -
<br />Buffalo Bill Reservoir- -
<br />Big Thompson River at Estes
<br />Cache La Poudre River at Fort Collins
<br />Colorado River at Dotsero
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<br />Previous Record Low
<br />Previous Record Low
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<br />Previous Record Low
<br />Previous Record Low -
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<br />1954
<br />1960
<br />1919
<br />1954
<br />1954
<br />1954
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<br />In addition, during Water Year 1977, inflows
<br />Reservoirs were the third lowest of record.
<br />previously recorded their lowest of historic
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<br />to Seminoe and Granby
<br />Both reservoirs had
<br />record inflows in 1934.
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<br />Heavy Water Deliveries
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<br />With the exception of the North Platte Project in Wyoming and Nebraska,
<br />most areas experienced above normal irrigation deliveries. The
<br />North Platte Project ran low on storage ownership and the Bureau
<br />allocated the remaining water supply during the latter part of the
<br />irrigation season. Special I-year drought contracts made water available
<br />from Glendo Unit storage for use in Wyoming and Nebraska. Area irri-
<br />gation deliveries as a percent of normal were:
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<br />North Platte Project, Wyo. and Nebr.- - 84
<br />Glendo Unit, Wyo. and Nebr. - - - - - 473
<br />Colorado-Big Thompson Project, Colo.- 143
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<br />Depleted Reservoir Storage
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<br />The drought seriously depleted most of the water in
<br />System's reservoirs. At the end-of-September 1977,
<br />as compared to normal, were:
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<br />reservoir storages,
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<br />1/ A water year begins on October 1 and continues through
<br />September 30 of the following year.
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