Status of water levels and selected water-quality conditions in the Mississippi River Valley alluvial aquifer in eastern Arkansas, 2000
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150-foot contour 1n the Mississippi 2000—Continued USGS 25 degrees Celsius Alluvial Aquifer 1n altitude datum altitude aquifer in eastern Arkansas County Ashley County average rate centimeter at 25 Chicot Counties cone of depression data sea level Date of measure Date of minutes datum altitude feet declined an average Depth of Date Depth to Latitude Desha County Drew County eastern Arkansas feet above feet feet above land-surface feet above sea feet below Depth Francis County ft/yr Land-surface water degrees land-surface well measure Latitude degrees Latitude Longitude Water-level Levels and Selected Longitude degrees Longitude Water-level Land-surface mg/L microsiemens per centimeter Mississippi River Valley Natural Resources Conservation NRCS number seconds Poinsett County potentiometric surface Prairie Counties rate of decline Resources Conservation Service River Valley Alluvial Selected Water-Quality Conditions Status of Water terrace deposits U.S. Geological Survey Valley Alluvial Aquifer Valley alluvial aquifer—Continued Water-level hydrographs Water-level Land-surface water Water-Quality Conditions 1n Woodruff Counties