We finalized the Cleanup Action Plan in November 2016 for the lowland area of the Everett smelter site, east of East Marine View Drive. We’ll be cleaning up 14 areas in the lowland area. Cleanup methods include soil removal or capping (covering the soil with a material that prevents people being exposed or rainwater soaking in). In some areas, we will require institutional controls — measures taken to limit or prohibit activities that might result in exposure to contamination. In other areas, we will allow natural processes to reduce the contamination, while monitoring surface water and groundwater quality to confirm that it's working.