Environmental Monitoring

This section contains information regarding fish and water column samples from previous years. To view the environmental monitoring associated with the 2017 secure landfill construction project, click here.

Environmental monitoring is an important gauge of the success of our remediation efforts and pilot projects so far. Since the early 1990s, Arconic (formerly Alcoa) has monitored water column and resident fish samples from the lower Grasse River in order to assess the long-term changes in water quality and PCB levels in the river, and to identify what impacts naturally occurring events (such as high flow events and ice jams) and major pilot studies have had on the recovery of the lower Grasse River.