What's causing cloudy water in Round Rock?

ROUND ROCK, Texas (KXAN) - The City of Round Rock said a water main that was brought back online this week has caused sediment to appear in customers’ water. Utility leaders said despite the water having a cloudy look, it is safe to drink and bathe with."We are seeing anything from what would appear to be normal clear water all the way to very off-color. Kind of rust-colored, darker water, and there's almost an ever-present sediment," Paul Pimentel said.Pimentel lives west of IH-35 in Roun