Seepage Springs (image) University of Illinois at Urbana-Champaign Share Print E-Mail Caption Seepage springs occur when groundwater flows out onto the surface in natural areas. Credit Graphic by Julie McMahon Usage Restrictions Image may be used with stories about the research described in this release. Credit required: Graphic by Julie McMahon. Share Print E-Mail 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.