Walnut Valley Water District
(Diamond Bar, Walnut)
The following Stage 1 mandatory water conservation measures are set forth in the District’s Rules and Regulations:
Limits on Watering Hours: Watering or irrigating of lawn, landscape, or other vegetated areas with potable water is prohibited between the hours of 8:00 A.M. and 5:00 P.M.
Limit on Watering Days: Water or irrigating of lawn, landscape, or other vegetated areas with potable water is limited to three (3) days per week.
This provision does not apply to landscape irrigation zones that exclusively use very low-flow drip type irrigation systems when no emitter produces more than two (2) gallons of water per hour.
This provision also does not apply to watering or irrigating by use of a hand-held bucket or similar container, a hand-held hose equipped with a positive self-closing water shut-off nozzle or device, or for very short periods of time for the express purpose of adjusting or repairing an irrigation system.
Limit on Watering Duration: Watering or irrigating of lawn, landscape, or other vegetated areas with potable water using a landscape irrigation system or a watering device is limited to no more than fifteen (15) minutes watering per day per station.