However, the subcommittee would first need to determine what direction to take with SQGs before it could decide on establishing a database. The Task Force members emphasized that if a database were to be developed, we would need to look at long-term management of such a database. Michael passed out handouts of the draft data gaps report, which the subcommittee discussed earlier in July. As for the last item, Port of Long Beach has a scope of work available, which should go out within the next few weeks. Task Force members discussed the concrete stabilization component.
Most studies seem to have been done on fresh water sediments.
Testing on metals show they get locked up with this form of treatment. However, not much is known on its effectiveness on chlorides and petroleum hydrocarbons. This may have since been overcome. If the Port of Long Beach were able to do the literature search, we might clarify the effectiveness of concrete stabilization. When sediments undergo physical separation, they are put in a centrifuge whereby compounds may get pushed from the sediments into the aqueous solution.