Residents of Portland got some more not-so-great news today about their water: The city wants everybody to boil it for the time being because three separate E. coli tests came up positive, reports the Oregonian. The advisory affects 670,000 people, though a city official called the risk "relatively small," reports CNN. New test results will be in tomorrow morning, and it's possible the advisory could be lifted then, reports OPB. The city's water supply made national headlines earlier this month after a teenager got caught peeing in a reservoir (though he denies it).