214010-020-mtn-home-2019-10-31-wfps-report

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Mountain Home Water Facilities Planning Study Update October 2019
3.3 Potable Supply
groups would benefit by the improved water quality and delivery capabilities of the water
distribution system.
Historical and projected populations are found in Chapter 2 of this report. Based on
historical population growth rates, assumes an annual population growth rate of 1.5% and
results in 2030 and 2040 populations of 17,069 and 19,831 people, respectively.
The City currently supplies the water system from groundwater wells. An evaluation of the conditions of
these facilities, completed in April 2018, is documented in the Inspection Finding Form and email found
in Appendix F, as well as the latest Sanitary Survey Action Summary. The City maintains files for each
of their wells to track operation and maintenance activities, pump run times, and well production.
Continuous SCADA data is also monitored for alarms, security, flows, pressures and drawdown.
The City currently has potable water rights for 16,857 gpm, of which 7,661 gpm are restricted to
summertime irrigation. With these rights, the City can supply all its existing wells as they turn on during
high demand situations. In addition to the groundwater rights, the City also owns irrigation shares in
the Mountain Home Irrigation District. Irrigation shares are the primary source of water for the City’s golf
course. Information for the City’s water rights are summarized in Table 3.1 and Figure 3.1 below, as well
as in Appendix C.
Table 3.1 – Summary of Water Rights
Actual
Div. Rate Div. Rate
Type Basin Sequence Suffix Priority Date (cfs) (gpm) Period of Use Water Use
WR 61 2072 3/13/1931 2.00 898 1/1 - 12/31 Municipal
WR 61 2167 4/6/1964 1.97 884 4/1 - 11/1 Municipal
WR 61 2170 5/27/1964 9.64 4,326 1/1 - 12/31 Municipal
WR 61 2188 2/17/1966 2.66 1,194 3/15 - 11/15 Municipal
WR 61 2210 9/30/1966 5.35 2,401 4/1 - 11/1 Municipal
WR 61 7151 4/9/1973 1.14 512 4/1 - 10/31 Municipal
WR 61 7172 F 11/19/1973 2.81 1,261 3/15 - 10/15 Municipal
WR 61 7184 4/22/1974 4.35 1,952 1/1 - 12/31 Municipal
WR 61 7339 8/18/1977 4.50 2,020 1/1 - 12/31 Municipal
WR 61 7439 6/10/1981 3.14 1,409 4/1 - 10/31 Municipal
Total 37.56 16,857
CITY OF MOUNTAIN HOME | KA 214010-020 12