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HomeWater CodeDiv. 6Pt. 1.5Ch. 2§ 10015 Cimis Water Conservation Benefits

§ 10015 Cimis Water Conservation Benefits

Water Code·California
AI Summary·Official Text·Key Terms·Related Statutes·References
AI SummaryVerified

§ 10015 Cimis Water Conservation Benefits

This law says California should use smart ways to save water, like using weather data to water plants only when needed. It helps farmers, parks, and homeowners waste less water.

Key Takeaways

  • •California wants people to use weather data to save water.
  • •Using this method can save homes up to 37 gallons a day and businesses up to 545 gallons a day.
  • •Saving water also helps the environment by reducing runoff and air pollution.

Example

A family waters their lawn every day, even when it rains.

This law encourages using weather data to know when the lawn really needs water, saving up to 37 gallons a day for homes.

How to Calculate

No specific formula in this section, but it mentions savings like 37 gallons/day for homes and 545 gallons/day for businesses.

  1. Check how much water you use now for your lawn or garden.
  2. Use weather data (like from CIMIS) to see how much water plants actually need.
  3. Adjust your watering to match the weather, saving water.

A homeowner waters their lawn 5 times a week, using 50 gallons each time.

Result: If they use weather data, they could save about 37 gallons each day they water, cutting their weekly use to around 125 gallons (250 - (37 x 5)).

AI-generated — May contain errors. Not legal advice. Always verify source.

Official Source
View on CA.gov

§ 10015 Cimis Water Conservation Benefits

The Legislature hereby finds and declares all of the following: (a) The state’s growth requires policymakers to seek creative ways to maximize the use of water resources and employ technology to conserve water whenever possible. (b) The state’s agricultural industry, as well as residential landscapers, pest control managers, park and golf course operators, water agencies, and large urban irrigators rely on the California Irrigation Management Information System (CIMIS) to provide evapotranspiration data that allows them to develop weather-based, water budgeting methods of irrigation. A recent study found that the California Irrigation Management Information System generates $64.7 million in annual benefits to the state, at an annual cost of only eight hundred fifty thousand dollars ($850,000). (c) Completing the development of standard data protocol for evapotranspiration data and enhancing statewide coverage of CIMIS data will allow significant improvements in landscape management and irrigation scheduling, thereby saving significant amounts of water. Studies have shown a savings of 37 gallons per day for residential irrigation, and 545 gallons per day for nonresidential irrigation, as well as runoff reduction of up to 50 percent when weather-based irrigation controllers using evapotranspiration data are installed. (d) The expansion of the California Irrigation Management Information System, and the use of evapotranspiration data in irrigation has other environmental benefits as well. The reduction in urban runoff that results can lead to improved water quality, and for every one acre foot of water saved, there is a corresponding reduction of one ton of air emissions, according to the California Irrigation Management Information System Urban Resource Book (May 2000). (Added by Stats. 2007, Ch. 319, Sec. 3. Effective January 1, 2008.)

Last verified: January 11, 2026

Key Terms

irrigationmanagementinformationevapotranspirationbenefitsenvironmentalcoverageemission

Related Statutes

  • § 1051 Water Rights Investigations
  • § 12410 Statewide Water Data Platform
  • § 12670.20 Colusa Basin Flood Projects
  • § 144 Stream Gage Network Plan
  • § 9611 Sacramento-San Joaquin Flood System

References

  • Official text at leginfo.legislature.ca.gov
  • California Legislature. Water Code. Section 10015.
View Official Source