Californians have been ordered to save water because of the drought. But one of the best ways to save it is to not lose it in the first place. That is why many cities in this thirsty state have declared a war on leaks.
Here on Whitsett Avenue in the San Fernando Valley — or rather about 20 feet below it — the Los Angeles Department of Water and Power is replacing much of the Coldwater trunk line, a major artery more than 100 years old.
Read the full story here: http://www.nytimes.com/2015/06/30/science/california-turns-to-stopping-water-leaks.html?_r=0