Sampling in Sri Lanka (IMAGE) Duke University Caption A researcher takes samples of well water in a rural community of Sri Lanka. Tests indicate that the active ingredient in Roundup may be interacting with the area’s hard water to cause epidemic levels of chronic kidney disease. Credit Jake Ulrich, Duke University Usage Restrictions None License Original 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.