USGS Scientific Investigations Report 2009-5148 Groundwater-Flow Model of the Ozark Plateaus Aquifer System, Northwestern Arkansas, Southeastern Kansas, Southwestern Missouri, and Northeastern Oklahoma First posted August 18, 2009 Revised March 16, 2010 p. 4 - Acknowledgments section: "and James Vandike (Missouri Department of Natural Resources)" was added to end of first paragraph p. 45 - Figure 26 - Incorrect 800 foot label on y-axis was replaced with 600 foot label p. 47 - Figure 28 - Incorrect 800 foot label on y-axis was replaced with 600 foot label p. 49 - Figure 30 - Incorrect 800 foot label on y-axis was replaced with 600 foot label p. 51 - Figure 32 - Incorrect 800 foot label on y-axis was replaced with 600 foot label p. 53 - Figure 34 - Incorrect 800 foot label on y-axis was replaced with 600 foot label