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2 | Groundwater Sustainability Plan for the Yucaipa Basin Area | San Bernardino Valley Municipal Water District
PROJECT
UNDERSTANDING
The Yucaipa Groundwater Basin has been identified
by the Department of Water Resources (DWR) as a
high priority basin, requiring the development of a
GSP to be submitted to DWR by January 31, 2022.
The GSP must be compliant with the Final GSP
YUCAIPA VALLEY WATER DISTRICT
Emergency Regulations approved by the California GENERAL PROJECT LOCATION
SHOWING YUCAIPA
Water Commission on May 18, 2016. San Andreas fault zone, San Bernardino Mountains section (South Branch SAF) San Andreas fault zone, San Bernardino Mountains section (Mill Creek fault) GROUNDWATER SUBBASIN
BOUNDARIES
San Andreas fault zone, San Bernardino Mountains section (Mill Creek fault)
San Andreas fault zone, San Bernardino Mountains section (South Branch SAF)
The Yucaipa Groundwater Basin has been studied
extensively since the 1970’s by the United
Triple Falls Creekriple Falls Creek
T
Crafton Hills fault zone (Yucaipa graben complex)
States Geological Survey (USGS) and consultants Crafton Hills fault zone (Yucaipa graben complex) San Andreas fault zone, San Bernardino Mountains section (South Branch SAF)
Crafton Hills fault zone (Western Heights fault)
unnamed fault
unnamed fault
Crafton Hills fault zone (Redlands fault)
working for the purveyors and regional agencies. Crafton Hills fault zone (Redlands fault) Crafton Hills fault zone (Western Heights fault) G Gatewayateway O Oak Glenak Glen
San Andreas fault zone, San Bernardino Mountains section (South Branch SAF)
Crafton Hills fault zone (Casa Blanca fault)
San Andreas fault zone, San Bernardino Mountains section (South Branch SAF)
San Andreas fault zone, San Bernardino Mountains section (South Branch SAF)
Crafton Hills fault zone (Chicken Hill fault)
Stakeholders in the Yucaipa Basin have observed Crafton Hills fault zone (Redlands fault) Crafton Hills fault zone (Western Heights fault) Craftonrafton Crafton Hills fault zone (Chicken Hill fault) Crafton Hills fault zone (Casa Blanca fault)
Crafton Hills fault zone (Redlands fault)
Crafton Hills fault zone (Western Heights fault)
Crafton Hills fault zone (Reservoir Canyon fault)
Crafton Hills fault zone (Chicken Hill fault
W
declining groundwater conditions in many of the Crafton Hills fault zone (Reservoir Canyon fault) W Westernestern Crafton Hills fault zone (Chicken Hill fault) C) Wilson Creekilson Creek
He
Heightsights
sub-basins and began working collaboratively on Crafton Hills fault zone Crafton Hills fault zone C Calimesaalimesa
Crafton Hills fault zone
Crafton Hills fault zone
Crafton Hills fault zone (Chicken Hill fault)
elements of a groundwater management plan in Crafton Hills fault zone (Live Oak Canyon fault) Crafton Hills fault zone (Chicken Hill fault) S San Bernardino Coan Bernardino Co
Crafton Hills fault zone (Live Oak Canyon fault)
R
2014. Riverside Coiverside Co Regional View
NO RT H
Area of Detail
Yucaipa GSA San Andreas fault zone, San Bernardino Mountains section (Banning fault)
San Gorgonio Pass fault zone (San Gorgonio Pass fault)
San Gorgonio Pass fault zone (San Gorgonio Pass fault)
San Jacinto fault zone, San Bernardino section (Loma Linda fault)
San Jacinto fault zone, San Bernardino section (Loma Linda fault)
San Jacinto fault zone, San Bernardino section (Claremont fault)
San Jacinto fault zone, San Bernardino section (Claremont fault)
San Bernardino Co
Riverside Co
Stakeholders in the Yucaipa Basin have already developed a shared vision
San Andreas fault zone, San Bernardino Mountains section (Banning fault)
San Gorgonio Pass fault zone (Cherry Valley fault)
San Gorgonio Pass fault zone (Cherry Valley fault)
The Badlands
The Badlands
for sustainable groundwater management and were already performing YUCAIPA GSA BOARD 0 10 20 Miles
San Jacinto fault zone, San Jacinto Valley section
San Jacinto fault zone, San Jacinto Valley section
Beaumont Plain fault zone
Beaumont Plain fault zone
Beaumont Plain fault zone
Beaumont Plain fault zone
studies and collaborating on groundwater management activities. This 2 Miles OF DIRECTORS Tel: (909) 451-6650 Fax: (909) 451-6638 Figure 1
12-Oct-16
N O RT H
GEOSCIENCE Support Services, Inc.
0.5
0
1
Prepared by: DB. Map Projection: State Plane 1983, Zone V.
P.O. Box 220, Claremont, CA 91711
2016, GEOSCIENCE Support Services, Inc. All rights reserved.
www.gssiwater.com
forward thinking led to the successful formation of a single Yucaipa PURVEYORS
W:\GIS_proj\yvwd_Gateway_subbasin\Focused_gw_model_4-15\0_BRIAN_WORKING_gwbasins_10-16.mxd
Groundwater Sustainability Agency (Yucaipa GSA) to complete the GSP. South Mesa Water Company
Since the Yucaipa GSA was formed, they have held monthly meetings South Mountain Water Company
where administrative items, most notably the Bylaws of the Yucaipa Western Heights Water Company
GSA, were established. The Yucaipa GSA conducts regular meetings on
the fourth Wednesday of each month. Yucaipa Valley Water District
Yucaipa Basin Boundary Modification MUNICIPALS
In 2016, as part of the Sustainable Groundwater Management Act (SGMA) City of Calimesa
City of Redlands
basin boundary modification, Valley District modified the groundwater
basin boundary for the Yucaipa Basin to be more consistent with the City of Yucaipa
Yucaipa Basin watershed boundary and to close the gaps between REGIONALS
adjacent basins. The seven subbasins (Triple Falls Creek, Gateway, Oak San Bernardino Valley Municipal
Glen, Crafton, Wilson Creek, Western Heights, and Calimesa) were used Water District
to determine the safe yield estimates in 2014 and the subsequent annual San Gorgonio Pass Water Agency
change in groundwater storage capacities. The subbasins will be updated STAKEHOLDERS
to match Yucaipa Basin boundary as currently defined. County of Riverside
USGS Groundwater Model County of San Bernardino
The USGS is in the third year of a four-year project with Valley District
to develop an integrated flow model in the Yucaipa Basin. The Yucaipa Basin Groundwater Model is a
four-layer model using the computer code GSFLOW. GSFLOW was developed by the USGS to simulate
coupled groundwater and surface water resources. The USGS is scheduled to have a fully calibrated
groundwater flow model by the end of June 2018 for use in developing the GSP. The USGS has also
provided technical outreach in support of studies and projects being performed by Valley District and
the retail agencies.
Yucaipa Sustainable Groundwater Management Agency - August 9, 2018 - Page 6 of 208
