Page 28 - Beaumont Basin Watermaster - DRAFT 2016 Annual Report

Section 3
Status of the Basin and Administration of the Judgment

2010, Beaumont began deliveries of recycled water to Discharge Point No. 7 (DP-007),
located along an unnamed tributary of Marshall Creek, as shown in Figure 3-3. It is believed
that a portion of the recycled water discharged at this location reaches and recharges the
Beaumont Basin; should this be the case, this would be considered a new source of
supplemental water for which Beaumont should receive credit pursuant to the storage
agreement with the Watermaster and Section 5.4 of the Rules and Regulations. Technical
documentation of the amount of recycled water that reaches and recharges the Beaumont
Basin would need to be prepared by Beaumont and considered and accepted by
Watermaster. It should be noted that deliveries to DP-007 ceased in the Fall of 2015 due to
mechanical failure of a pump station.

In CY 2016, the City of Beaumont discharged an estimated 3,533 ac-ft of recycled water at
DP-001 in Cooper’s Creek; no discharges were made at DP-007. Recycled water
discharges in CY 2016 were approximately five percent higher than in CY 2015. Monthly
discharges at DP-001 vary slightly monthly from a low 3.01 mgd in March to a high of 3.26
mgd in August; the average for the year was 3.15 mgd. Monthly recycled water discharges
by the City of Beaumont since 2007 are summarized in Table 3-5.

3.3.3 New Yield Stormwater Recharge
Before accounting for any new yield resulting from the recharge of local surface water, not
initially considered as part of the Basin Safe Yield, Watermaster needs to develop a
methodology to quantify and credit the New Yield to the party that creates the new recharge.
According to Part VI Paragraph 5.V of the Judgment, Watermaster shall make an
independent scientific assessment of the estimated new yield created by each proposed
project. It is our understanding that the City of Beaumont has been recharging local waters at
various locations in the Basin and would like to receive credit for the New Yield developed.
For Beaumont to receive credit however, Watermaster will need to develop the methodology
to compute and credit the New Yield dating back to the Judgment inception in February 2003
or since delivery of flows began, whichever is latest.

3.4 Water Transfers and Adjustments of Rights

Section 7 of the Watermaster Rules and Regulations, as amended in September 2008,
provides for the adjustment of rights by and between Appropriators and Overlying Parties.
This section indicates that Watermaster shall maintain an accounting for all transfers and
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 redetermined 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
redetermined 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

Beaumont Basin Watermaster 2016 Annual Report – DRAFT – August 2017 3-7