What is being done to monitor the groundwater plumes heading toward the Columbia River?
To monitor and track the plume heading toward the Columbia River, more than a thousand groundwater and soil testing wells have been installed and are sampled on a regular basis. We also have installed groundwater treatment systems to control further migration of plumes. These plumes are large, complex, and lie at a depth sometimes exceeding 250 feet. The success of the effort depends on the effectiveness of existing treatment, the use of innovative technologies, and continued effort.
