Caldwell will proceed with eminent domain action to take over part of the Pioneer Irrigation District

In its 2008 lawsuit filed against the city, Pioneer claims Caldwell residential areas illegally drain storm water into Pioneer’s facilities, a use the lawsuit argues will eventually cause flooding or public health problems or both. The city argues the storm water discharges are allowed by long-standing state law. Trial in the case is set for June.
Butts, Mike. Idaho Press-Tribune: Home 20 November 2012.