Stormwater runoff cisterns are roof water management devices that provide retention storage volume in above or underground storage tanks. They are typically used to supplement the water supply for landscape irrigation. Cisterns are substantially larger than rain barrels, with some underground cisterns having the capacity of 10,000 gallons or more. They are also typically equipped with an electric pump to facilitate pressurized distribution to an automated landscape irrigation system. Cisterns are constructed of durable material, such as concrete, plastic, polyethylene, or metal.
Install a rain water cistern at your home or business and receive a rebate of 15 cents per gallon.
(Maximum residential rebate = $1,000)
(Maximum commercial rebate = $10,000)
Links to additional information on cisterns
- Cistern Fact Sheet
- Cistern Information
- Rain water harvesting
- Bushman USA cisterns
- Rainwater Hog cisterns
- Aussie Rain Tanks
- Rain water harvesting (SF Chronicle 12-06-08)
Installation of a cistern may qualify for "points" under one of the green building rating systems specified in the the City's Green Building Ordinance.
Green Building Rating Systems: