Submarine Groundwater Discharge (IMAGE) University of California - Santa Cruz Caption Groundwater carrying excess nutrients from treated sewage enters coastal waters through submarine freshwater seeps in the reef off the coast of Maui. Credit Peter Swarzenski, USGS Usage Restrictions For use only with news coverage of this research. 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.