Page 31 - Beaumont Basin Watermaster

Section 3
Status of the Basin and Administration of the Judgment

include said transfers in the Annual Report or other relevant document. There are three types
of transfers that Watermaster accounts for: a) transfer of water rights and/or water in storage
between Appropriator Producers, b) transfer of water rights from Overlying Producers to an
Appropriator Producer in exchange for water service, and c) the allocation of unused
Overlying Water to the Appropriator Parties based on their share of the Operating Safe Yield.

According to Part VI, Administration, Paragraph 5Y of the Judgment, the Safe Yield of the
Beaumont Basin shall be re-determined at least every 10 years after the date of entry of the
Judgment, February 4, 2004. In 2015 the Safe Yield of the Beaumont Basin was re-
determined and estimated at 6,700 ac-ft/yr. This amount represents a 22.54 percent
reduction from the previous estimate of 8,650 ac-ft/yr. Table 3-6 presents the initial and
revised production rights from individual Overlying Producers and compares them against
actual groundwater production during the 2013-17 five-year period for each user. Annual
average groundwater production during this period for all Overlying Producers combined was
estimated at 2,161.5 ac-ft/yr; representing approximately 32.3 percent of the revised Safe
Yield. Individually, none of the Overlying Producers produced more than their allowable
production rights during this five-year period; California Oak Valley Golf and Resort LLC
averaged the highest percentage of their respective allocation at 86.6 percent followed by
Plantation by the Lake at 78.7 percent and Sharondale Mesa Owner Association at 70.1
percent. Tukwet Canyon Golf Club followed at an average of 59.8 percent of their Overlying
right.

3.4.1 Transfers between Appropriators
According to Section 7.3 of the Rules and Regulations, an Appropriator may transfer all or a
portion of its production right or water in storage that exceeds its supply needs to another
Appropriator.

In January 2008, the SMWC and the BCVWD entered into a transfer agreement that allows
BCVWD the option to purchase all water that SMWC determines to be available for transfer
from their storage account. As part of the agreement, each year the SMWC estimates the
amount of water available for transfer and offers it to the BCVWD for purchase prior to
offering it to other Appropriators. Since the beginning of the agreement, SMWC has
transferred 9,500 ac-ft of water to BCVWD with 3,500 ac-ft transferred in CY 2011. SMWC
also transferred 1,500 ac-ft of water to Banning in CY 2007. The purchase agreements and
transfers between these agencies are on file with Watermaster.

Water transfers between Appropriators were not reported during CY 2017.

3.4.2 Transfers of Overlying Rights for Service by an Appropriator
The Judgment, under Part III, Paragraph 3, provides that to the extent an Overlying Party
request water service from an Appropriator Party, and uses its adjudicated water rights to
obtain said service; an equivalent volume of groundwater shall be reserved for the
Appropriator Party providing the service to the Overlying Party. Further, Section 7 of the
Rules and Regulations indicates that both the Overlying and Appropriator will file a Notice of
Adjustments of Rights with Watermaster within 30 days after entering a service agreement.

Beaumont Basin Watermaster 2017 Annual Report – DRAFT – February 2018 3-8