Page 27 - Beaumont Basin Watermaster

Section 3
Water Quality Conditions

by WEI and it has been used since. The estimate of unmetered production for the CY 2018 Annual
Report uses the updated method developed by WEI as detailed in Appendix D.

Similar to the production reported for the Appropriators, a series of tables was developed to report
monthly and annual production from the Overlying Parties on a calendar year basis. Starting with
Table 3-2A, annual production is documented for CY 2003-13; Table 3-2B through 3-2F
summarize monthly production by Overlying well for CY 2014 through CY 2018 respectively. In
addition, these tables show their share of the Safe Yield and the amount of unused water for each
Overlying Party is shown. It should be noted that these tables have been revised to reflect
updated production records from Plantation by the Lake since 2013.

Production by Plantation by the Lake has been corrected for the 2013 to 2016 period. During
those years, monthly production records were provided by this Overlying Producer in million
gallons; however, research conducted early in the year indicated that the number should have
been reported in million cubic feet instead. This result in a documented under production by a
factor of 7.48 since there are 7.48 gallons of water in a cubic foot. Production by this Overlying
user continues to be refined and has been confirmed for 2017 and 2018.

During CY 2018, Overlying Producers produced an estimated 2,220.7 ac-ft; this level of production
is approximately eight percent lower than in CY 2017 and 15 percent higher than in CY 2016.
Compared to the five-year average of 2,173.4 ac-ft/yr, Overlying Producers pumped two percent
more water than the average.

3.2.3 2003-2018 Annual Production Summary
Annual production for all Appropriators and Overlying Parties since 2003 is summarized in Table
3-3A on a calendar year basis for the 2003 to 2010 calendar years while Table 3-3B documents
annual production for CY 2011 through CY 2018. It should be noted that production from 2003
only includes production for the second half of the year. Since July 2003, a total of 246,260 ac-ft
have been pumped from the Beaumont Basin; an estimated 83 percent of this total has been
pumped by Appropriators. The percentage of groundwater production from Appropriators has
steadily increased since the Judgment inception from a low of 74.3 percent registered in CY 2003
to a high of 87.2 percent recorded in CY 2014 and has averaged 85.4 percent over the last five
calendar years.

Groundwater production peaked in CY 2007 when close to 20,000 ac-ft were pumped from the
basin; since, it declined steadily through 2010 to approximately 13,600 ac-ft; however, production
during the 2011-14 period increased by 26.1 percent to 17,281 ac-ft. Since 2014, production
declined significantly in 2015 by over 4,000 ac-ft and began climbing again. Production in CY
2018 was approximately 31 percent higher than in CY 2015 and just below the 2014 peak. Total
groundwater production from the basin in CY 2018 was 17,246.8 ac-ft; approximately 11 percent
higher than the five-year average of 15,499 ac-ft/yr. Annual production for each of the
Appropriators and for the Overlying Producers combined is depicted in Figure 3-4.

Beaumont Basin Watermaster 2018 Annual Report – DRAFT - February 2019 3-5