1005

• UCREFRP Catalog Number: 1005
• Author: WBLA.
• Title: Curecanti Minimum Stream Flow Water Rights Study-Draft.
• USFW Year: 1986.
• USFW - Doc Type: \
• Copyright Material: NO

29

Scenario 7: The capacity of the Gunnison Tunnel was increased from 1122

to 1300 cfs arid the patterrl of irrigat iCIYI di versiorls factored up. (See

Appendi)( B.)

Scenario 8: The demand pattern for 45,000 acre feet of M&I releases from

Blue Mesa was compressed to August and September in the 80~ exceedance dry

years. This pattern places greater demands on Blue Mesa in the dry years

and in the late summer when irrigation demands are high. It also provides

less berlefit to mirlirnum stream flows, since the erltire 45,000 acre fc'cot

supply is delivered in just two months when releases are often also made

for endangered fishes.

Scenario 9: The staff of the Colorado Water Conservation Board (CWCBl

provided target levels for Blue Mesa storage which lowered early winter

reservoir contents so as to mitigate the ice jam problem at the inlet to

Blue Mesa during this time of the year. The CWCB targets were based on

the USBR targets without arlY adjustmet.t for the Taylor Park exchaYlge. The

CWCB targets were accordingly adjusted in the same way as the USBR targets

to account for the Taylor Park exchange and the adjusted CWCB targets

shown in Table 7 were examined in this scenario.

TABLE 7: CWCB Blue Mesa Storage Targets (1000 acre feet)

334

Apr
368

Mav
538

Jun

Jul
824

AUQ
780

SeD
720

Oct
660

Nov

571

Dec

516

Jan

Feb
389

Mar

443

748

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