The Uncompahgre Valley Water Users Association requests registration of the illegal, unregistered pumps to be used in ditches in the Uncompahgre Basin this year. “It’s a big job trying to keep track of everything, and then when you have people dropping their pump in — pretty soon it gets unfair,” UVWUA manager Marc Catlin said.

Some northern Colorado farmers who had their groundwater pumps shut off last summer will try to convince a state panel this week that they're not drawing down the South Platte River.