Title: Altitude of the potentiometric surface in the Mississippi River Valley alluvial aquifer, spring 2020
Abstract: First posted September 13, 2021 For additional information, contact: Director, Nebraska Water Science Center U.S. Geological Survey5231 South 19th Street Lincoln, NE 68512 The purpose of this report is to present a potentiometric-surface map for the Mississippi River Valley alluvial aquifer (MRVA). The source data for the map were groundwater-altitude data from wells measured manually or continuously generally in spring 2020 and from the altitude of the top of the water surface measured generally on April 9, 2020, in rivers in the area.