I came across this on the interwebs today. It's California's water conservation plan.

Here's the executive summary:

In February 2008, Governor Schwarzenegger introduced a seven-part comprehensive plan

for improving the Sacramento-San Joaquin Delta. As part of this effort, the Governor directed

state agencies to develop a plan to reduce statewide per capita urban water use by 20 percent by

the year 2020. This marked the initiation of the 20x2020 Water Conservation Plan (20x2020

Plan) process.

California’s water resources are finite and now require managing for sustainability.

Multiple benefits can be realized as a result of more aggressive water conservation including:

• reduced stress on the environment of the beleaguered Sacramento-San Joaquin Delta
• delayed capital cost of new infrastructure to treat and deliver water
• reduced demand for wastewater treatment, including capital costs and ongoing treatment costs
• reduced water-related energy demands and associated greenhouse gas emissions
• improved ability to meet environmental needs
• improvements in the quality of receiving waters related to reduced discharge
• reduced use of fertilizers, pesticides, and herbicides, reduced escape of these chemicals into surface waters, reduced production of green waste, and improved
• habitat value of urban landscapes
• enhanced flexibility in water management and delivery systems, especially during dry periods
• better capacity to meet the challenge of California’s growing population.

California can reduce its per capita use 20 percent, from the current 192 gallons per capita

daily (GPCD) to 154 GPCD. This amounts to an annual savings of about 1.74 million acre-feet.