TY - RPRT TI - Water Levels and Selected Water-Quality Conditions in the Mississippi River Valley Alluvial Aquifer in Eastern Arkansas, 2006 AU - T. P. Schrader PY - 2008 DO - 10.3133/sir20085092 UR - https://pubs.usgs.gov/publication/sir20085092 ID - sir20085092 ER -