Researcher Samples Water on Public Lands (image) University of California - Davis Caption UC Davis postdoctoral scholar Leslie Roche takes a water sample from a meadow on a US Forest Service grazing allotment for her study, published June 27, 2013 in PLOS ONE, on cattle grazing, recreation and water quality on public lands. Credit Kenneth Tate/UC Davis Usage Restrictions Include credit. 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.