Page 12 - Beaumont Basin Watermaster

Beaumont Basin Watermaster Memorandum No. 18-12 Page 2 of 10

cemetery grounds. The water level at this well continues to fluctuate over a 20-
foot band. Conversely, the water level at the Sun Lakes well has fluctuated
minimally over the same period as it decreased one foot.

✓ 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, has been recorded at Banning M-8. The probe at Banning
M-8 was removed during our visit in late January 2018 as there seems to be an
obstruction in the well at a depth of approximately 350 ft below ground. City staff
has indicated that the pump at this well will be pulled in the summer at which time
we may have an opportunity to use this well again. Water level at Banning M-9 has
fluctuated within a 10-15 feet range during the same period.

✓ Figure No. 6 illustrate recorded water level at BCVWD No. 2 and the new
monitoring well BCVWD No. 25. Over the last two years, the level at BCVWD No.
2 has increased by over 20 feet topping in May 2017 at an elevation of 2,218 ft.;
current water level elevation is at the highest point since the monitoring program
began. The level at this well declined by ten feet before recovering again over the
last six months. Water level at BCVWD No. 25 seems to be in sync with BCVWD
No. 2 based on the short recording period of only six months. During the last two
months, BCVWD No. 25 has been used intermittently as illustrated in the
supplemental figure.

Troubleshooting Issues

The following malfunctioning issues were encountered during our May 29, 2018 field visit:

✓ YVWD Well No. 34 – A new probe and communications cable was installed at this
well during our visit. This installation is temporary until a new communications
cable and a Barologger are delivered from Solinst for installation in late June.

✓ Banning M-8 – The water level probe was removed from this well during our
January visit since the well is obstructed at approximately 350 feet below ground.
City staff has indicated that the existing pump at this well will be pulled during the
summer. At that time, we may be able to resume monitoring operations at this
well.

✓ Barometric Probe at Banning M-9 stop working on New Year’s Day. Probe was
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reset after the regular Board meeting in February 7 , 2018 and worked fine until
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May 15 when it stopped working. A new probe has been ordered for this well.
✓ Oak Valley No. 5 – Communications cable is not working and may be difficult to
remove from inside the well. Water level probe continues to record levels on an
hourly basis.

Beaumont Basin Watermaster - June 6, 2018 - Page 12 of 27