Starting next week, about 1 million residents and business owners in the eastern San Gabriel Valley and the western Inland Empire will be asked to stop all landscape watering and cut back on indoor water use for a week while a regional water agency repairs a major water pipeline.
The Metropolitan Water District of Southern California is making the unusual request to ensure that several local water agencies that rely on the MWD for supplemental water can continue to meet the high summer demands after the district shuts down a 26-mile feeder line.
"This is a major pipeline," said MWD spokesman Adan Ortega. "You can walk inside this pipeline."
For seven days, starting Monday, the MWD wants residents and merchants in La Verne, Claremont, Chino, Chino Hills, Montclair, Ontario, Rancho Cucamonga, Upland and Fontana to dramatically reduce water use.
During that period the MWD wants residents to stop watering their lawns and plants, hand-washing cars, filling swimming pools and hosing down driveways and sidewalks.