WSP03527

• File Number: 822.600.10
• Description: Colorado River Annual Operating Plan - Annual Reports
• Basin: Colorado Mainstem
• Date: 1/1/2003
• Author: USDOI/BOR
• Title: Annual Operating Plan
• Water Supply Pro - Doc Type: Annual Report

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The amount of this surplus shall equal:

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I. For Direct Delivery Domestic Use by MWD. 1.250 mafreduccd by the amount of basic
apportionment available to !v1WD.
., For use by SNW A. the Direct Delivery Domestic Use within the S~WA ser\'ice area in
excess oflhe State ofNevada's basic apportionment.
3. For use in Arizona. the Direct Delivery Domestic Use in excess of Arizan3' s basic
apportionment.

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For informational and planning purposes. Reclamation has estimated that the amount of surplus
waler expected to be pumped or released from lake !\olead during calendar year 1003 under the Full
Domestic Surplus is not expected to exceed 0.660 maf(81~ mem). The actual amount of surplus
could be less than this amount (in the unlikely event ofthc 3vailabililyofanyunused apportionment)
and could also. based on actual Direct Deli\"cry Domestic use. excccd this projected amount.

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Consistent with Section 5(B) oflhe Interim Surplus Guidelines. if the California contractors ha\"e not
executed the Quantificalion Settlement Agreement by December 31. 2002. the interim surplus
detenninations under Section 2(8)(1) Full Domestic Surplus and Section 2(B)(2) Partial Domestic
Surplus are suspended and will instead be based on the 70R Strategy. Consistent with Section 7 of
the Interim Surplus Guidelines. the August 24-~lonth Study was used to project the January 1.2003.
system storage and projected uses" Based on this projection and the definition of the 70R Strategy.
the Normal determination \\"ill then go\"crn releases for use in the States of Arizona. Nevada and
California during calendar year 2003 in accordance with Article II(B)(I) of the Decree"

The suspension of surplus detenninations under Section 2(B)( I) and 2(B)(2) of the Interim Surplus
Guidelines will remain in effect until such lime as California completes all required actions and
complies with reductions in water use reflected in Section 5(C) of the Interim Surplus Guidelines. In
the event that the California contractors and the Secretary execute said agreements during calendar
year 2003. consistent with Section 5(B) of the Interim Surplus Guidelines. the interim surplus
determinations under Sections 2(B)(I) and 2(B)(2) will be reinstated. following appropriate
consultations. The Full Domestic Surplus will then govern the releases for use in the States of
Arizona. Nevada and California for the remainder of calendar year 2003.

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Under a Nonnal determination. it is anticipated that use of mainstream Colorado River water in the
Lower Basin will be reduced from approximately 8.5 maf in calendar year 2002 to 7.5 maf in
calendar year 2003. This reduction for calendar year 2003 may require reductions in use by users in
Ne\"ada (approximately 37.000 acre-feet less than 2003 projected use) and California (approximately
620.000 acre-feel less than 2003 projected use). Given these reductions in a\"ailable supply'. and the
extraordinarily low inflow amounts within the Colorado Ri\"er basin during 2002. the Secretary.
through Reclamation. will be reviewing Lower Basin operations to assure that all deliveries and
diversions of mainstream water arc in strict accordance with the Decree. applicable statutes.
contracts. rules. and agreements.

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December 13. 2002

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