EBMUD 2022
CITY OF SAN LEANDRO
UPDATE
EAST BAY PLAIN
GROUNDWATER
SUSTAINABILITY
PLAN
MAY 2022
100 YEARS SERVING THE EAST BAY
AGENDA
Introduction
Background on Sustainable Groundwater
Management Act (SGMA)
Groundwater Sustainability Plan (GSP) Overview
Questions
GSP: Groundwater Sustainability Plan
SGMA: Sustainable Groundwater Management Act 2
3 EBMUD treats water
through up to 6
treatment plants.
Water quality meets or
exceeds all standards.
San Leandro is served a
combination of
Mokelumne River,
Sacramento River, and
Local Runoff.
Future reliability of 3
major water supply
sources is uncertain due
to climate change,
droughts, wildfires, and
new regulations.
INTRODUCTION
Existing Water Supplies
Three Sources of
Drinking Water
Mokelumne
River
Sacramento
River
Local
Runoff
Groundwater represents an
opportunity to improve
resiliency.
EBMUD is evaluating
groundwater options.
INTRODUCTION
Water Use
by Region
(Source: California’s
Groundwater Update 2020)
4 SGMA enacted to protect
groundwater resources
within the State of
California.
EBMUD became a
Groundwater Sustainability
Agency (GSA) in 2016 and
Hayward became a GSA in
2017.
A GSP was submitted to
DWR on January 26, 2022.
District and Hayward are in
GSP implementation.
GSP is a living document
and stakeholder
engagement will be ongoing.
BACKGROUND ON SGMA
5 GSP OVERVIEW
BASIN SETTING EBP Subbasin has 3 aquifers. EBP Subbasin groundwater levels are stable, and the
basin is sustainable.
Overall, EBP Subbasin
groundwater quality is good
and the analysis shows
there are no contaminants
impacting the intermediate
and deep aquifer.
Private domestic wells
supplement irrigation and
are not currently used as a
source of drinking water.
6 GSP OVERVIEW
SUSTAINABILITY GOALS & INDICATORS
Four sustainability goals.
SGMA requires that the
GSAs consider 6
sustainability indicators in
the GSPs.
Interim criteria for each
indicator were developed
with stakeholder input and
using best available science
& data with the caveat that
major data gaps need to be
addressed.
All criteria for each of the 6
sustainability indicators are
currently being met.
Sustainability Goals for East Bay Plain Subbasin
Manage
& protect
Collect
data
Evaluate GW
beneficial uses
Maintain
sustainability
Groundwater Levels are stable
Groundwater Storage is stable
Seawater intrusion is not observed
Water Quality objectives are met
Land Subsidence is not observed
Surface Water is not being depleted
Sustainability Indicators
7 GSP OVERVIEW
POTENTIAL FUTURE PROJECTS PENDING DATA & SCIENCE
Three future projects will
be evaluated.
EBMUD has not used
Bayside to meet potable
water demands due to new
supplemental supplies.
Bayside requires physical
modifications and state
permit approvals to
implement.
New data collected and
analyzed as part of
implementing the GSP will
be used to guide future
groundwater management.
• Bayside
Any new sources of drinking
water added will meet or
exceed all State and Federal
requirements.
• Large Parcel Irrigation
Serve large parcels (e.g. parks, cemeteries) with
groundwater in lieu of using water from EBMUD’s system
• Chabot Recovery
Supplement flows in San
Leandro Creek with
groundwater
8 GSP OVERVIEW
MONITORING ACTIONS
Monitoring actions will fill
data gaps to drive future
science-based solutions.
Annual reports due every
April 1st.
GSP updated every 5 years.
Public can access data at
www.eastbayplaindms.com.
9 QUESTIONS?
CONTACT INFO
[email protected]
[email protected]
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