SOUTHERN CALIFORNIA S WATER FUTURE IDENTIFYING DRIVERS FOR CHANGE: - PowerPoint PPT Presentation

2020 Integrated Resources Plan SOUTHERN CALIFORNIA ’ S WATER FUTURE IDENTIFYING DRIVERS FOR CHANGE: SCENARIO PLANNING Stakeholder Meeting May 20 and May 22, 2020

HOUSEKEEPING • Today’s Workshop will last 90 minutes, including time for questions and input. Though not recorded, we will capture your written comments. • To provide input, please either “raise your hand” or type in the Q&A tab. • Your microphone will remain muted until it is your turn to speak. We will get to as many questions and comments as possible. • If you are joining by phone only, you can raise your hand by pressing *9 on your phone. • Please identify yourself and your organization prior to asking a question or making a comment. • Remember, you may also type in questions or comments into the Q&A. • Technical issues? Use the Q&A feature to communicate with us. 2

WHAT ARE WE DOING TODAY? • Provide Background – Brief Q&A • Explain Why We Plan – Brief Q&A • Brainstorm – Identify Drivers of Change – Tell us about your important drivers 3

WHY THINK ABOUT OUR WATER FUTURE? 4

BRAINSTORM IDEAS BRAINSTORM IDEAS 5

WAYS YOU CAN PARTICIPATE MANY WAYS TO PARTICIPATE Take a Raise Hand E-mail Submit ? Listen Survey 6

BACKGROUND 7

MISSION The Mission of the Metropolitan Water District of Southern California is to provide its service area with adequate and reliable supplies of high quality water to meet present and future water needs in an environmentally and economically responsible way. 8

MISSION The Mission of the Metropolitan Water District of Southern California is to provide its service area with adequate and reliable supplies of high quality water to meet present and future water needs in an environmentally and economically responsible way. 9

METROPOLITAN OVERVIEW Service area about 19 Million people Water for one of every two Californians 26 Members Agencies 5200 Square Miles/Six Counties Imports water from N. Sierra and Colorado River About 4MAF Annual Demand (roughly half provided by Metropolitan) MWD SERVICE 10 AREA

A NEED FOR IMPORTED WATER Los Angeles Aqueduct #Welcome To Us MWD SERVICE 11 AREA

A NEED FOR IMPORTED WATER Los Angeles Aqueduct #Welcome To Us Colorado River MWD Aqueduct SERVICE 12 AREA

FIRST METROPOLITAN BOARD MEETING December 29, 1928 13

POPULATION AND WATER SUPPLIES INCREASED Los Angeles Aqueduct #Welcome To Us Colorado River State Water MWD Aqueduct Project SERVICE 14 AREA

STATE WATER PROJECT Federal/State Commitment to State Water Project 15

1987-1992 DROUGHT WAS A WAKEUP CALL 16

IMPORTING MORE WATER NOT SUSTAINABLE FOR LONG-TERM GROWTH Los Angeles Aqueduct #Welcome To Us Colorado River State Water MWD Aqueduct Project SERVICE 17 AREA

QUESTIONS ON BACKGROUND? 18

WHY WE PLAN 19

INTEGRATED WATER RESOURCES PLAN • Blueprint for So. CA water reliability • Long-term strategy adapting to changing conditions Imported Imp • Diversified resource portfolio Water Transfers/ Exchanges Ex St Storage Gr Grou ound Water r Conserv Co rvati tion Rec ecycling Rec ecovery 20

LOCAL RESOURCES GROUNDWATER STORMWATER RECYCLING RECHARGE CAPTURE It is a long established fact that a reader It is a long established fact that a reader will be distracted by the readable ,It is a will be distracted by the readable ,It is a long established fact that a reader will be long established fact that a reader will be distracted by , It is a long established fact distracted by , It is a long established fact that a reader will be distracted by the that a reader will be distracted by the readable . readable . GEORGE SMITH VICTORIA SMITH Digital artist. Digital artist. 21

WATER USE EFFICIENCY PROGRAM INCENTIVES REBATES OUTREACH EDUCATION SURVEYS 22

POTABLE WATER DEMAND STABLE DESPITE POPULATION GROWTH 20 Million Acre-Feet/Million People 18 16 14 12 10 8 Metropolitan Service Area 6 4 2 Potable Consumptive Water Demand 0 1985 1990 1995 2000 2005 2010 2015 Calendar Year 23

REACHING HISTORIC LOWS IN POTABLE PER CAPITA WATER USE Potable Per Capita Water Use* Metropolitan's Service Area Gallons Per Capita Per Day 200 150 100 50 IRP Projection History 0 1985 1990 1995 2000 2005 2010 2015 2020 2025 2030 2035 2040 *2017 GPCD based on best available data as of July 2018 and is subject to change 24

SIGNIFICANT INVESTMENTS IN STORAGE 6.0 5.0 Million Acre-Feet Available Storage Capacity 4.0 3.0 2.0 1.0 0.0 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2019 25

RECORD STORAGE LEVELS 6.0 5.0 Million Acre-Feet Available Storage Capacity 4.0 3.0 2.0 Dry-Year Storage 1.0 Emergency Storage 0.0 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2019 26

METROPOLITAN STORES WATER IN AND OUTSIDE OF THE REGION Diamond Valley Lake 27

HISTORY OF THE IRP 1987 – 1992 Colorado River SWP Recession & Drought Cutbacks Restrictions Drought 1996 2004 2010 2015 2020 28

QUESTIONS ON PRIOR PLANNING? 29

WHAT IS SOUTHERN CALIFORNIA’S WATER FUTURE? 30

THE FUTURE IS NOT PREDICTABLE ? TODAY FUTURE 31

LET ’ S LOOK AT A RANGE OF PLAUSIBLE FUTURES TODAY FUTURE 32

SOME CATEGORIES OF UNCERTAINTY Climate Change Political and Regulatory Technological Advances Economy and Demographics 33

CLIMATE CHANGE DRIVERS • Rising sea level • Hydrologic variations and extremes • Stresses on river basin ecosystems 34 Slide 34

POLITICAL AND REGULATORY DRIVERS • Emerging regulatory challenges • Legislative initiatives • Public trust initiatives 35

TECHNOLOGICAL DRIVERS • Increasing availability of decentralized treatment technologies • Adoption of innovative stormwater capture measures • Acceptance of direct potable reuse 36

ECONOMIC AND DEMOGRAPHIC DRIVERS • Economic activity • Population growth • Changing housing densities and land uses 37

QUESTIONS ON DRIVERS? (WHAT THEY ARE) 38

DRIVERS OF CHANGE We want to know your thoughts about the future and what unknowns you see could challenge or benefit water supply reliability in the region. 39

DRIVERS OF CHANGE Brainstorming Activity 40

WHAT ’ S NEXT • Survey on drivers • Compile scenarios • Begin technical analysis and policy discussion • Public outreach on draft plan 41

2020 Integrated Resources Plan MWDirp@mwdh2o.com MWDwatertomorrow.com 42