Sampling (IMAGE) Penn State Caption Undergraduate research students, Josh Price (left) and Zach Weagly (right) at lake preparing to collect water samples for chemical and microbiological testing. Downstream from swimming area at Blue Marsh Reservoir. Credit Melissa Buchter, Penn State Usage Restrictions non commercial use only 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.