Molybdenum in Wisconsin Drinking Water (IMAGE) Duke University Caption A new study from Duke University links contamination in Wisconsin water wells to natural molybdenum ore located deep underground, not to surface coal ash. Credit Avner Vengosh, Duke Univ. 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.