Experimental Plots (IMAGE) Penn State Caption The research sampled 10 surface runoff events from 12 research plots (six with each application method) after the fall application of manure. In a follow-on study planned for the Kepler Farm plots, researchers intend to test deeper water movement to be sure estrogens are not leaching into groundwater. Credit Heather Gall Lab / 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.