(State College) -- In the wake of Tropical Storm Lee, private water well owners are being urged to have them tested for bacteria. Penn State Extension Associate Bryan Swistock says wells should be tested if there's a presence of sediment in the water or it takes on a cloudy color. He says even if it looks safe to drink, it could be contaminated. "If you know the well got flooded, was underwater, or if there was a lot of flood water ponding around the well, those would be other symptoms that you're much more likely to have a bacteria problem," he says. "Even if you didn't see the sediment, you could get enough surface water in there that you could have bacteria." Water tests typically cost up to 30 dollars. Swistock recommends wells be tested annually, even in the absence of flooding, and owners should get them checked out sooner if they think they've been contaminated.