WSP06260

• File Number: 8200.200.50
• Description: Colorado River Basin Hydrology - Lower Colorado River Accounting-LCRAC
• State: CO
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 3/25/1992
• Author: Unknown
• Title: Estimate of 1992 Colorado River Water Use
• Water Supply Pro - Doc Type: Data

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United States Department of the Interior
CWCB

BUREAU OF RECLAMATION
Lower Colorado Regional Office
P.O. Box 61470
Boulder City, NV 89006-1470

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LC-460
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MAR 3 0 199
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IN REPLY REFER 1'0:

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DR 2 5 1992

To:

All Interested Persons

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From: Regional Supervisor of Water, Land, and Power

Subject: Estimate of 1992 Colorado River Water Use (Water Accounting)

Enclosed are the forecasts of yearend 1992 water use for all users in the lower basin. The
forecast currently indicates that total mainstream Colorado River water use by Lower
Division States is below the 7.5-million-acre-foot limit established in the Annual Operating
Plan for 1992.

Projected 1992 water use is based on actual use during January and February 1992, users'
historical use patterns, and scheduled use provided by users. The projected use for each user
is being provided so that water users can monitor their use of water and avoid any overuse
during the year. Because seasonal agricultural requirements can vary significantly from year
to year, it is emphasized that all users should promote water conservation and plan to keep
water use within their annual entitlement.

We expect the actual use data contained in the projections will provide the basis for the
"Compilation of Records in Accordance with Article V of the Supreme Court of the
United States in Arizona v. California" (Article V records) for calendar year 1992. As a
result, we are asking that each user review the actual use data and notify us if any of the
records appear to have errors. Your review of the accuracy of the records during the year
will help us complete the final Article V records in a timely fashion. The final 1992
Article V records will be used to determine, among other things, the extent to which any
individual user of Colorado River water may have exceeded their entitlement. In such cases,
the final records will serve as the basis for requiring reductions in water use in future years
in order to offset any such inadvertent overruns that may have occurred.

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For any further information concerning our water use accounting and projection process
please contact Mr. Alden Briggs at 702-293-8677.

Enclosure