Area groundwater levels up, says CNPPID Groundwater levels in the area served by The Central Nebraska Public Power and Irrigation District have risen slightly over the past year, according to a report during its board meeting Monday. Irrigation Operations Manager Dave Ford told the board that semi-annual readings from Central’s network of observation wells revealed small increases ...PLEASE LOG IN FOR PREMIUM CONTENT. Our website requires visitors to log in to view the best local news. Not yet a subscriber? Subscribe today!