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Findings – Changes due to Construction Activities
Near dredges
- Concentrations increase due to sediment losses from removal of mud
South Bay
- Chemicals Associated with bay mud increase in borrow pit (PCB, DDTs, Hg, PAH)
- Magnitude influenced by borrow pit configuration and dredging/placement method
Notes:
So, a summary of the findings near the dredge's concentrations generally increase due to loss of sediments and the chemicals that are associated with that Bay mud. During the South Bay, some of the chemicals are increased in a magnitude of that increase would be influenced by the borrow pit configuration and how that material is actually removed and placed.