Page 21 - Beaumont Basin Watermaster

Beaumont Basin Watermaster Memorandum No. 19-13 Page 2 of 10

foot band. Conversely, the water level at the Sun Lakes well has fluctuated
minimally over the same period as it decreased two feet over the last three years.

✓ Figure No. 5 illustrates levels at three wells owned by the City of Banning in the
Southeast portion of the basin. While water level at the Old Well No. 15 (Chevron
Well) has been fairly flat over the last two years, a somewhat significant and steady
decline, close to 23 feet, was recorded at Banning M-8 between the summer of
2015 and the winter of 2017. The probe at Banning M-8 was removed in late
January 2018 and was reinstalled last week. Water level at Banning M-9 has
fluctuated in a 13-foot range, between 2,134 ft and 2,147 ft. since monitoring began
in the summer of 2015. Currently, water elevation is at 2,138 ft. Water level over
the last four months are not depicted in the figure due to problems with the
communications cable. It is likely that the communications cable would need to
be replaced.

✓ Figure No. 6 illustrate recorded water level at BCVWD No. 2 and BCVWD No. 25.
Over the last two years, the level at BCVWD No. 2 has increased by over 26 feet
and is currently at the highest elevation recorded since monitoring began. Water
level at BCVWD No. 25 is in sync with BCVWD No. 2 despite of pumping close to
18 hours a day and it is also at the highest level recorded. Over the last six months,
the water level at these two wells has increased by 10 ft at each well.

✓ Figure No. 7 depicts the recorded water level at the two newest observation wells,
BCVWD No. 29 and Tukwet Canyon Well “B”. BCVWD is a pumping well, but it
has not been used since the monitoring probe was installed in March 2019. Tukwet
B is a dedicated monitoring well in the southern portion of the basin. At both wells
the recorded water fluctuated within a few inches over the last two months.

New Monitoring Wells

Since the last reporting period, two new wells have been equipped with monitoring
equipment. These two wells are located in the western portion of the basin where we
information was lacking. BCVWD No. 29, similar to BCVWD No. 25, is a production well
that is normally operated 18 hours a day during the summer to take advantage of Time
of Use (TOU) energy schedules. Water levels at this well will be recorded hourly; the
highest daily level will be used as a representation of static water conditions. The second
well is Tukwet Canyon Golf Course Well B, which is a non-production well at this time
and will be used to monitor water levels in the southern portion of the basin. The location
of these wells is depicted in Figure 1 below.

New Equipment Installation

✓ A new communications cable (500 ft long) was installed at BCVWD No. 2

✓ A new communications cable (200 ft long) was installed at Oak Valley Well No. 5

Beaumont Basin Watermaster - June 5, 2019 - Page 21 of 33