|
<br />---~",,-.._~,. '.~'~
<br />
<br />. ,"-.~', .,.... ':'_'*_*~.'- :-,~a""'.~.~:__"', .....-"".:. :.....,~~-:.;.,...:.,.:,..'::.i...~::;;-i~:.
<br />
<br />'-~_.-':~l~.......~:'~, s.. .t..~.b~<.:~~_~...;"~:~:;';';';''''1
<br />:,;j;}
<br />
<br />- ,J
<br />-..;
<br />. ~
<br />
<br />'.
<br />
<br />c'
<br />
<br />~
<br />,
<br />
<br />';
<br />
<br />;":
<br />
<br />11
<br />
<br />",1
<br />
<br />the storage used by the model was 27.4 MAF and the average shortage was 5.7 per-
<br />
<br />cent. When adjustments are made to account for the differences between deple-.
<br />
<br />p
<br />
<br />,.,
<br />
<br />r..
<br />
<br />tion levels and storage used, the difference in shortages amount to less than 2
<br />
<br />percent.
<br />
<br />I
<br />;..1
<br />
<br />"
<br />
<br />).
<br />
<br />The CRSS model verification runs 1 and 2 are valuable indicators that the
<br />
<br />[:,
<br />
<br />storage yields in the Upper Basin, when stressed, can still meet the necessary
<br />
<br />,,:'1
<br />r> ~
<br />
<br />^":!.
<br />
<br />depletion levels and remain within tolerable shortages. Several model runs were
<br />
<br />;-t
<br />'.;.~:
<br />~..~ 1
<br />:.'j;1
<br />:<t
<br />
<br />--
<br />
<br />made with varied releases (7.5 MAF and 8.23 MAF), witp bank ster~ge ~elease, no
<br />
<br />.,
<br />
<br />;:,,!
<br />
<br />constraints on active storage, etc. Each time, the depletion leve.l reached in
<br />
<br />the two methods were within about 1 1/2 percent of one another.
<br />
<br />
<br />....
<br />
<br />3. Water Supply Physically Available
<br />
<br />Based on projected depletions, there remains 1,008,000; 348,000; 153,000; and
<br />
<br />.94,000 acre-feet of available water within the 5.8 million acre-foot limit in
<br />
<br />-'
<br />~; "
<br />
<br />''';''.
<br />~":
<br />
<br />the Upper Basin in year 1990; 2000; 2010; and 2020; respectively. The 5.8
<br />
<br />~;.
<br />{,-'
<br />.::.;.~
<br />"'\
<br />J;i
<br />t;
<br />Ii
<br />
<br />"3';
<br />~
<br />
<br />million acre-foot annual Upper Basin depletion is projected to be reached by the
<br />
<br />. "
<br />
<br />-
<br />year 2040. Therefore, there is likely to be unused water in other Upper Basin
<br />
<br />States, principally Utah and Wyoming, that could be used on an interim basis by'
<br />
<br />the State of New Mexico.
<br />
<br />,~
<br />
<br />","-1
<br />
<br />~.:
<br />
<br />In connection with the Gallup-Navajo, Indian Water Supply Project, the Southwest
<br />
<br />-,:-;
<br />
<br />Region has prepared an analysis of the actual water that could be diverted from
<br />
<br />the San Juan River (upstream from Bluff, Utah to Navajo Reservoir) utilizing the
<br />
<br />
<br />storage capacity of Navajo Reservoir for the period 1929-1974. The E&R Center
<br />
<br />and the Upper Colorado Region concur with this analysis. The demands were based
<br />
<br />on year 2030 projections identified as of 1980. The operation studies indicated
<br />
|