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WSP07161
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Last modified
1/26/2010 2:26:02 PM
Creation date
10/12/2006 2:09:22 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8272.100.60
Description
Colorado River Basin Salinity Control Forum
Basin
Colorado Mainstem
Water Division
5
Date
3/1/1981
Author
CRBSCF
Title
Fourth Annual Progress Report - Water Quality Standards for Salinity - Colorado River System - March 1981
Water Supply Pro - Doc Type
Annual Report
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<br />l\J <br />H:ao <br />W <br />o <br /> <br />TABLE 1 <br /> <br />Virgin Flow at Lee Ferry <br />(1,000 Acre-feet) <br /> <br />Water Year <br /> <br />Flow <br /> <br />1973 <br />1974 <br />1975 <br />1976 <br />1977 <br />1978 <br />1979 <br /> <br />19,395 <br />13,325 <br />16,921 <br />11,338 <br />5,470 <br />15,268 <br />17,793 <br /> <br />The virgin flow for 1977 at Lee ,Ferry of 5.47 maf was <br />the driest year on record for the period 1906 - 1979. <br /> <br />Storage Changes <br /> <br />Upper and Lower Basins reservoir storage has increased <br /> <br />since 1972 as shown on Figure 1. Basinwide storage at the <br />end of calendar year 1979 was about 11.8 million acre-feet <br />greater than at the end of 1972. Of the total increase, 7.7 <br />million acre-feet was in the Upper Basin and 4.1 million <br />acre-feet was in the Lower Basin. The 1979 calendar year <br />storage in the Colorado River system was about 5.5 million <br />acre-feet more than the 1978 value. On June 22, 1980, Lake <br />Powell filled (3,700 foot elevation) and 250,000 acre-feet <br />were released over the spillway during the following twenty <br />days. <br /> <br />-3- <br /> <br />~:;i. <br />
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