How is the excavation monitored?
The control zone is maintained in place until such time that the zone can be certified as clean (i.e., the site has met the cleanup goals), by sampling and monitoring the sediment and the water column in the control zone. What is the microfiltration water treatment facility?Seaway’s treatment facility makes use of polymeric membrane filtration technology to remove all submicron-sized particles and is capable of providing soluble contaminant treatment should soluble breakthrough occur. What is done if there is soluble or particulate contamination still remaining in the water column after settling? By maintaining the control zone, Seaway has the capability of treating the water in the control zone (several turnovers, if necessary). This is accomplished by pumping water from the control zone through the treatment facility to achieve the desired water quality. As Seaway pumps water out of the control zone, more water is permitted to flow into the zone to maintain a controlled differential
