Page 28 - Beaumont Basin Watermaster

Section 3
Status of the Basin and Administration of the Judgment

proposed by Wildermuth Environmental Inc. (WEI), during the preparation of the 2005-06 Annual
Report. After being accepted by the Watermaster, an updated water duty method was developed
by WEI and it has been used since. The estimate of unmetered production for the CY 2017
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 2003-12; Table 3-2B through
3-2F summarize monthly production by Overlying well for CY 2013 through CY 2017
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 Sharondale Mesa Owner Association since
2011 and 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 shall be properly documented by the time the final report for CY
2017 is produced. Close production estimates for the 2013-16 period are used in this draft
report.

During CY 2017, Overlying Producers produced an estimated 2,404.7 ac-ft; this level of
production is approximately 24 percent higher than in CY 2016 and 15 percent higher than in CY
2015. Compared to the five-year average of 2,186.1 ac-ft, Overlying Producers pumped 10
percent more water than the average. Production tables 3-2B (2013) through 3-2F (2017) have
been corrected based on the Plantation by the Lake revisions.

3.2.3 2003-2017 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 2017. It should be noted that production from 2003
only includes production for the second half of the year. Since July 2003, a total of 229,014 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 85.7 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 23.6 percent. Total groundwater production from the
basin in CY 2017 was 15,867 ac-ft; approximately three percent higher than the five-year

Beaumont Basin Watermaster 2017 Annual Report – DRAFT – February 2018 3-5