Colorado River Workshop CWCB July 20 2004

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Lfth CRSP STORAGE • As of the end of June 2004 • Flaming Gorge contains about 2.6 MAF of live storage and peaked this year at 2.64 MAF, which is about 70% of full. • Aspinall contains about .654 MAF of live storage, which is the expected peak and is about 79% full. • Navajo Reservoir currently contains about 1.028 MAF of live storage and is projected to peak at the same which is 60% of full. Lake Powell Storage • As of June 2004 • 10.476 MAF, and is projected to be about 9.5 MAF at the end of this water year. • This is the lowest level since Powell began filling in March 1963. • At the current rate of decline during this drought, we can count on Powell to do its job for another 3 -5 years. L06 P-11 Wfl• ad RNwa.s . ....._... 3a °a_iAa':c£ "p's °sEci:9�35is3 °a Red bars extendingbelow the zero line indicatethe amount of storage m fakePowetl used to meet the 8.23 MAF delivery obligation in the Long -Range Operating Criteria. (7.5 MAF for Compact + .75 MAP forMexico-.02MAF for Paria River inflow). Since Glen Canyon Darn closed, no more than 4-5 years in a row required stomgetomake 8.23 MAF release. Monthly Total Colorado River Basin Storage 70 60 mr.a�,ww.,o �uclra.ms+l 50 a g � 40 T m 30 m 20 ��.,�.d�..�st.� •o.t>sm�y s Ft0 siesses.e;e.w MOSroln,ea. F 1968 1973 1978 1963 1986 1993 1998 2003 1963 —2001 Year shows below January ist CR Basin Storage – Approxiroately60 MAP of live System Storage Capacity in CRSP (Flarning Gorge, Aspinall, Navajo & Powell) and Mead, Mohave and Havasu. As ofthe end of June 2004, system storage was 31.7 MAF or 53% of frill. Lake Powell Storage • As of June 2004 • 10.476 MAF, and is projected to be about 9.5 MAF at the end of this water year. • This is the lowest level since Powell began filling in March 1963. • At the current rate of decline during this drought, we can count on Powell to do its job for another 3 -5 years. L06 P-11 Wfl• ad RNwa.s . ....._... 3a °a_iAa':c£ "p's °sEci:9�35is3 °a Red bars extendingbelow the zero line indicatethe amount of storage m fakePowetl used to meet the 8.23 MAF delivery obligation in the Long -Range Operating Criteria. (7.5 MAF for Compact + .75 MAP forMexico-.02MAF for Paria River inflow). Since Glen Canyon Darn closed, no more than 4-5 years in a row required stomgetomake 8.23 MAF release.