California An Overview. 1995 (%)2020ChangePopulation(m)32.147.5 15.4Urban water use(maf)8.8 (11) 12.0 (15) 3.2Ag water use33.8 (43)31.5 (39)-2.3Urban per capita (gpcd) 132-349115-326One in every 8 people in the US live in CAPop'n density ranges from 2-16,000/mi2Fifth
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1. Rethinking Urban Water Use: Efficiency, and Conservation as Solutions to Water Problems. A California Case Study
Dana Haasz, Pacific Institute
2. California – An Overview 1995 (%) 2020 Change
Population(m) 32.1 47.5 +15.4
Urban water use(maf) 8.8 (11) 12.0 (15) +3.2
Ag water use 33.8 (43) 31.5 (39) -2.3
Urban per capita (gpcd) 132-349 115-326
One in every 8 people in the US live in CA
Pop’n density ranges from 2-16,000/mi2
Fifth largest economy in the world
Avg annual precip ranges from 2-90 in
Water is in the north, pop’n is in the south
3. Policies 1980 : CA plumbing standards
1994: National Energy Policy Act (toilets & showerheads)
2000: National energy standards for washing machines
2002: CA passes water standards for washing machines, taking effect in 2007
1992: CA Urban Water Conservation Council is established. 14 voluntary BMPs are developed.
4. The link between water use and economic growth can be broken
5. California’s Economic “Productivity of Water”
6. The Demand-Side Management Project QUESTIONS:
I.What is current demand?
II. What is the conservation potential?
What is technically feasible?
What is socially/politically feasible?
III. How much does conserving water cost?
IV. How much can be conserved cost-effectively?
7. METHODS Analysis based on end-use
Savings calculated for:
*Includes energy savings
Economic analysis based on costs to consumer
8. RESULTS Over 700 TAF captured since NEPA went into effect