Water-level maps of the alluvial aquifer, Northwestern Mississippi, April 1983

Water levels were measured in about 500 wells in the Mississippi River valley alluvial aquifer in northwestern Mississippi during April 1983. Ground-water levels have declined in some areas in recent years as a result of heavy irrigation pumpage from this aquifer. Near the areas of principal recharge, along the major rivers, and near the Bluff Hills, ground-water levels appear to be relatively unaffected by the large aquifer drafts; whereas away from the areas of recharge, in the interior of the basin, ground-water levels have shown a long-term decline. (USGS)