Catching a Sample in the Passaic River (IMAGE) Stevens Institute of Technology Caption Brad Iulculano, Environmental Engineering major at Stevens Institute of Technology, prepares to catch a water sample from the Passaic River downstream from where 14 pounds of nonreactive Rhodamine dye was dropped into the river. Samples were sent to the New Jersey Department of Environmental Protection for analysis. Credit Office of the Provost, Stevens Institute of Technology Usage Restrictions Give credit: "Office of the Provost, Stevens Institute of Technology" 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.