At all of the research sites in the Iowa vegetative treatment system demonstration project, we are collecting monthly groundwater samples from locations up-gradient of the vegetative treatment area (VTA), within the VTA, and down-gradient of the VTA. With the additional funds we are in the process of procuring, we will be able to collect a total of three years' monitoring data. Obviously, the longer we monitor, the better our understanding of long-term performance will be. And, for that reason, we are continuing to try to identify funding that will enable us to do so.
Author: Lara Moody, Iowa State University
