1.   And they said that the report makes it highly likely that the environmental agency will order that the contaminated sediment in the river be dredged up.

2.   Environmentalists, however, say the PCBs are already leaking from contaminated sediment on the river bottom.

3.   The report reinforced the argument that the only way to clean the river would be to dredge the contaminated sediment, at great cost to the company.

4.   They would also have to supply plans for cleaning up toxic waste sites that would be flooded and for dredging contaminated sediments.

5.   With less salmon to eat, the orcas may be dropping lower to feed on bottom fish that thrive in the contaminated sediment.

6.   PCB pollution of lakes and rivers is of particular concern because contaminated sediment exposes fish to the toxin and speeds its movement up the food chain.

7.   Contaminated sediments would be sent to landfills outside the Hudson Valley, according to the agency.

8.   Contaminated sediments would be treated and sent to existing landfills outside the Hudson Valley, according to the agency.

9.   Dredging for contaminated sediments would only stir up chemicals and cause them to be distributed more widely in the river, GE argues.

10.   In those three cases, contaminated surface sediment had to be removed from the test areas, the report said.