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Where available by pre-existing treatment, storage, or distribution network, and where approved by the Authority Having Jurisdiction, alternative water source(s) shall be utilized for landscape irrigation. Where adequate capacity and volumes of pre-existing alternative water sources are available, the irrigation system shall be designed to use a minimum of 75 percent of alternative water for the annual irrigation demand before supplemental potable water is used.

Related Code Sections

L 411.3 Sustainable Practices, Use of Alternate Water Sources for Landscape Irrigation
water source(s) shall be utilized for landscape irrigation. Where adequate capacity and volumes of pre-existing alternative water sources are available ...
1504.0 Alternate Water Sources for Nonpotable Applications, Subsurface Irrigation System Zones
Irrigation or disposal fields shall be permitted to have one or more valved zones. Each zone shall be of a size to receive the gray water anticipated ...
L 411.7 Sustainable Practices, System Performance Requirements
The landscape irrigation system shall be designed and installed to: Prevent irrigation water from runoff out of the irrigation zone. Prevent ...