TWIN FALLS, Idaho (KMVT/KSVT) Mark Koffer has been working with Walker Water Supply for more than 30 years. He's seen winters like this before, but it's been a while.
"Blaine County is like the winters when I first started in 1980," Koffer said.
With all of the flooding the this year his company has been servicing wells more than usual.
"We've had a lot more contaminations, maybe a dozen contaminations and maybe another dozen phone calls talking to people about how to solve the problem and in a regular year we might have one or two," Koffer said.
He's not the only one who's noticed the trend. Magic Valley Labs says they've seen a large increase this winter in tests of private wells.
The main thing wells can get contaminated with from flooding is coli form bacteria. That can mean E-Coli.
Beyond contamination the floodwaters and rising rivers can physically damage wells.
"I've been around long enough to know it can happen," Koffer said. "A lot of people build on the river cause it's pretty, but it may also be dangerous."
One of Walker Water System's customers in Blaine County had their entire well house wash away with the rising waters.