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WSP05551
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Last modified
1/26/2010 2:18:50 PM
Creation date
10/12/2006 1:06:29 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
822.600.10
Description
Colorado River Annual Operating Plan - Annual Reports
Basin
Colorado Mainstem
Date
1/1/2002
Author
USDOI/BOR
Title
Annual Operating Plan
Water Supply Pro - Doc Type
Annual Report
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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />Under the most probable inflow conditions during water year 2002, Lake Mead will be at its <br />maximum elevation of 1, 179.40 feet (359.48 meters) at the beginning of the water year and will <br />decline during the water year to reach its minimum elevation of I, 168,87 feet (356.27 meters) in <br />June 2002, dropping approximately IO feet (3.05 meters). After June. Lake Mead will slowly rise <br />to end the water year at an elevation of 1,172.92 feet (357.51 meters). <br /> <br />The Interim Surplus Guidelines Record of Decision included conservation measures. One such <br />conservation measure specified in Article X(4)(2) includes provisions for spav.ming razorback <br />suckers in Lake Mead, <br /> <br />No flood control releases are required during water year 2002 under the three inflow scenarios. <br /> <br />As Lake Mead remains near capacity and flood control releases may be required by the Hoover <br />Dam Flood Control Regulations, consideration will be given to making these releases over the <br />fall and winter months of2002 to avoid high flow releases during the January through July runoff <br />season in year 2003. This distribution of water reduces the chance of bypassing hydroelectric <br />powerplants below Hoover Dam and avoids the adverse impacts of higher flood control releases <br />on property, river stabilization, recreation, and water quality. <br /> <br />Lakes Mohan and Havasu <br /> <br />At the beginning of water year 200 I, Lake Mohave was at an elevation of 636.42 feet (193.98 <br />meters), with an active storage of 1.523 MAF (1,879l\.lCM). The water level of Lake Mohave <br />was regulated as needed between elevation 629 feet (191.72 meters) and 644 feet (196 meters) <br />throughout the water year, ending at an elevation of639.73 feet (194.99 meters) with 1.61 MAF <br />(1,986 MCM) in storage. The total release from Lake Mohave through Davis Dam was 10.076 <br />~lAF (12.429 MCM) for downstream water use requirements, <br /> <br />For water year 2002, Davis Dam is expected to release 9.735 MAF (12,008 MCl\.l). The water <br />level in Lake !\.lohave will be regulated between an elevation of 630 feet (192 meters) and 643 <br />feet (196 meters), <br /> <br />Lake Havasu started water year 2001 at an elevation of 447.25 feet (136.32 meters), with 0.566 <br />MAF (698 MCM) in storage. The water level of Lake Havasu was regulated as needed between <br />elevation 445 feet (135.6 meters) and 449 feet (136.9 meters). During the year, 7.256 MAF <br />(8,950 MCM) was released from Parker Dam, In addition to these releases, 1.589 t-.-tAF (1,960 <br />MCM) was diverted from Lake Havasu into the Central Arizona Project (CAP) and 1.263 MAF <br />(1,558 MCM) by the Metropolitan Water DiSlncl (MWD). <br /> <br />For water year 2002, Parker Dam is expected to release 7.109 MAF (8,769 MCM). Diversions <br />from Lake Havasu by MWD and CAP are expecled to be 1.25 MAF (1.542 MCM) and 1.407 <br />MAF (1,736 MCM), respectively, <br /> <br />October 15, 2001 <br /> <br />14 <br />
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