Western Kansas (IMAGE) Kansas State University Caption Kansas State University researchers found that the High Plains Aquifer's depletion followed in a south to north progression, with depletion peaking in 2006 for the entire aquifer. Credit Kansas State University Photo Services Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.