Page 8 - Beaumont Basin Watermaster

Beaumont Basin Watermaster Memorandum No. 19-16 Page 2 of 11

✓ 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 this past May; since it has declined and
additional 5 ft. 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 six 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
reaching its highest level in mid-May of this year. Since, it has declined 4 ft. 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 close to the highest level recorded. Over the last six
months, the water level at these two wells has increased by 6 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 that is
now more actively used to meet peak summer demands. Water level at this well
has experienced a slight decline of 4 ft over the last two months. Tukwet B is a
dedicated monitoring well in the southern portion of the basin; water level at this
well has been fairly stable over the last four months; however, an anomaly
occurred during the 4 of July weekend when the water level drop over 2 ft. (See
th
Figure 7A) No explanation has been given for this occurrence. Figure 7B illustrates
hourly water levels at BCVWD No. 29 and the On and Off TOU cycles used in this
well. Please note how quickly the water level at this well drops and recovers.

New Monitoring Wells

During the last reporting period, no additional monitoring wells have been added.

New Equipment Installation

None during the reporting period.

Troubleshooting Issues

The following malfunctioning issues were encountered during our August 1, 2019 field
visit:

✓ Banning M-9 – Communications cable did not allow us to upload water level
information from the probe for the second time; however, the probe continues to

Beaumont Basin Watermaster - August 7, 2019 - Page 8 of 38