DELTA CONVEYANCE PROJECT
UPDATE
STOCKTON CITY COUNCIL
AGENDA ITEM 15.1
JULY 11, 2023
STATEWIDE WATER
HISTORY
• AREAS OF SURPLUS TO AREAS OF
DEFICIENCY
• DEMANDS MET THROUGH 1981
• SURPLUS TO DECREASE DUE TO
UPSTREAM USES
2 The State will assume the
responsibility of guaranteeing a
firm supply of water, which will be
accomplished by the construction
of additional storage and import
works. At the same time, the
needs of the Delta will be fully met.
DWR Bulletin 76, Dec. 1960
3 State Dept. of Water Resources
(DWR)
DELTA – SWITCHING YARD
FOR WATER SUPPLY IN STATE
• 70 Reclaimed Islands
• 700 Miles Of Waterways
• 1,100 Miles Of Levees
• State Water Project (SWP) Conveyance For
Past 50 Years (Through-Delta Conveyance)
• Includes City’s Drinking Water Supply Intake
And Regional Wastewater Control Facility
Discharge
• Other Significant Infrastructure, Roads,
Railroads, Gas Pipelines, Shipping Routes,
Aqueducts
4 • 1980S – GOVERNOR BROWN
• OPPOSITION BY CITY, COUNTY,
DELTA AGENCIES AND OTHERS
• DEFEATED BY STATEWIDE
PROPOSITION
5 PERIPHERAL CANAL
CALIFORNIA WATER
FIX
• 2000S GOVERNOR
BROWN
• TWIN TUNNELS PROJECT
• ACTIVE OPPOSITION BY
CITY & MANY OTHERS
• DEFEATED – DELTA
STEWARDSHIP COUNCIL
6 DELTA CONVEYANCE PROJECT
PROPOSED TUNNEL
ALIGNMENTS
Governor Newsom’s
Proposal
Sacramento River Intakes
West/East Alignments
Water Supply - State
Water Contractors (Bay
Area, Central Coast, San
Joaquin Valley &
Southern CA)
7 DELTA
CONVEYANCE
PROJECT SPECIFICS
Concrete-lined Tunnel, 120
to 150 Ft. Belowground
40 ft by 40 Miles Long
7 Shaft Structures
14 Million CY Tunnel Muck,
2 Disposal Sites – Roberts
Island, Twin Cities Rd.
Cost Est. $16 to $25+ Billion
Construction Schedule - 15+
years
8 STOCKTON’S DELTA BACKGROUND
• LARGEST MUNICIPALITY WHOLLY WITHIN
THE SACRAMENTO-SAN JOAQUIN RIVER
DELTA
• SUBSTANTIAL PERCENTAGE OF ITS
MUNICIPAL WATER SUPPLY FROM DELTA
WATERS
• COULD BE UNIQUELY IMPACTED BY THE
DELTA CONVEYANCE PROJECT AND A
CHANGING CLIMATE
• WELL-BEING OF THE CITY, ITS RESIDENTS,
AND ECONOMY IS INEXTRICABLY LINKED TO
THE DELTA
9 WHY IMPORTANT TO
STOCKTON
10 Not a New Concept: 1980s - Peripheral Canal
& Water Fix (Twin Tunnels)
Long History of Opposition/Other Alternatives
Significant Negative Impacts
• Impacts On City’s Utilities:
• Water Supply & Quality
• Water/Wastewater Utility Operations
• Increased Costs To Ratepayers for Services
• Redirected Construction Impacts:
• Traffic (Rail, Roads & Highways)
• Noise & Air Quality
• Hospitals & Emergency Services
• Wildlife & Environment
• Recreation & Quality of Life
• Environmental Justice, Equity & Disadvantaged
Communities
STOCKTON’S
UTILITIES TIED TO
DELTA
11 • Delta Water Right
• Advanced Water
Treatment Plant - 2012
• Project Cost = $223
Million
• Regional Wastewater
Control Facility
• Discharge to Delta
• MODs Project Cost =
$245 Million
• Project Completion -
2024
SUMMARY & CURRENT STATUS
• Delta Conveyance Project – Eng. & Draft CEQA
• History Of Opposition
• Potentially Significant Impacts To City & Region:
• Water Supply & Utility Operations
• Jeopardize $468M Investment (ratepayer
dollars)
• Construction Impacts (10-15 years)
• Future Long-term Impacts To City In Billions
• Possible Engagement Opportunities:
• Design & Constructing Authority – DCA
• State Water Contractors
• State & City Collaboration Group
• DWR - Community Benefits Program
12 DEPT. WATER RESOURCES
COMMUNITY BENEFITS PROGRAM
13 QUESTIONS & COMMENTS
14 15
STOCKTON
2023 STATE AND FEDERAL LEGISLATIVE PROGRAM
SEC. 6. DELTA PROTECTION
AND ENHANCEMENT
• SUPPORT LEGISLATION THAT MAINTAINS LOCAL CONTROL OF WATER RIGHTS, WATER SUPPLIES AND LAND USE.
• OPPOSE ANY LEGISLATION OR ADMINISTRATIVE ACTION THAT
NEGATIVELY IMPACTS THE CITY OF STOCKTON’S INTERESTS IN THE DELTA. • NO ACTIONS SHOULD BE TAKEN RELATED TO THE DELTA THAT NEGATIVELY IMPACT THE CITY’S:
• WATER RIGHTS, SUPPLY AND QUALITY
• AIR QUALITY
• ECONOMIC VITALITY
• LOCAL LAND USE CONTROL
16 STOCKTON
2023 STATE AND FEDERAL LEGISLATIVE PROGRAM
SEC. 6. DELTA PROTECTION
AND ENHANCEMENT
• ADVOCATE FOR THE CITY’S INTERESTS THROUGHOUT
THE…DEVELOPMENT OF THE DELTA CONVEYANCE
PROJECT
• WORK PROACTIVELY TO PROTECT THE CITY’S RIGHTS AND
INTERESTS RELATED TO:
• WATER RESOURCES & FLOOD PROTECTION
• ACHIEVEMENT OF TANGIBLE NEAR-TERM PROGRESS ON
ECONOMIC BENEFITS AND WORKFORCE DEVELOPMENT
NEEDS FOR THE COMMUNITY
17 STOCKTON 2023 STATE AND FEDERAL
LEGISLATIVE PROGRAM - SEC. 6. DELTA
PROTECTION AND ENHANCEMENT
• ADVOCATE FOR THE STATE TO TAKE FULL RESPONSIBILITY AND ESTABLISH
CONCRETE ASSURANCES IN THE FORM OF DELTA CONVEYANCE PROJECT
DESIGN AND OPERATION COMMITMENTS THAT AVOID OR FULLY MITIGATE ADVERSE EFFECTS ON STOCKTON’S WATER SUPPLY, INCLUDING WATER QUALITY AND AVAILABILITY.
• ADVOCATE FOR CLOSE INTERACTION AND ACTIVE ENGAGEMENT WITH
THOSE AGENCIES RESPONSIBLE FOR DEVELOPMENT FOR THE DELTA CONVEYANCE PROJECT TO ENSURE THAT THE CITY OF STOCKTON’S GOALS
AND OBJECTIVES ARE ACHIEVED AS A MEASURE OF ANY SUCCESSFUL NEGOTIATION OR DISCUSSION.
• SUPPORT LEGISLATION AND OTHER PROCESSES THAT ADDRESS THE NEEDS
AND CONCERNS OF DELTA COMMUNITIES IN A BALANCED AND OBJECTIVE
MANNER TO IMPROVE THE ECONOMICS, WORK-FORCE OPPORTUNITIES, AND QUALITY OF LIFE FOR THE REGION.
18