Is it a new technology or procedure to dredge to the depth of the clay layer?
The proposed dredge depth is based on environmental considerations, not navigational considerations. The deeper environmental dredge depth is not selected as often because dredging is more often performed for navigational purposes, not environmental remediation. 20. Please explain the purpose and use of the barrier at the potential project sites and reaches in the GCR system. [BACK TO TOP] Due to the size of the system, the cleanup of the GCR system will be approached in a series of projects, known as reaches. The barrier will be placed to prevent migration of contaminated sediments from one project site that has not been remediated to a project site that has been remediated, thus preventing recontamination.
