Fracking in North Dakota (2 of 2) (IMAGE) Duke University Caption Duke graduate students Nancy Lauer and Jennifer Harkness conducting water and soil sampling at the Bear Den Bay spill site in North Dakota, where fracking wastewater was spilled. Credit Avner Vengosh 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.