Mountain View’s Costco evacuated customers on Tuesday morning after a piece of equipment struck a sprinkler pipe, causing it ...

Wapama Falls, far left, flows into the 117 billion gallon capacity Hetch Hetchy Reservoir in Yosemite, the source of 85% of Palo Alto’s water supply. Embarcadero Media file photo by Veronica Weber.

Mountain View is another step closer to expanding the use of recycled water in the city, after reaching an agreement with Palo Alto to foot more than half of the cost of an advanced water purification ...