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The time variability of dilution of the effluent in Massachusetts and Cape Cod Bay is 

 illustrated by a video simulation. 



These results are consistent with the conclusion reached in the Supplemental 

 Environmental Impact Statement (EPA, 1988) that relocating the outfall to the new location 

 in Massachusetts Bay, while significantly improving the dilution of effluent in Boston 

 Harbor, will not significantly alter the effluent concentrations in most of Massachusetts Bay. 



I thank you for the opportunity to present these results of the USGS modeling studies. 

 We look forward to continuing the USGS studies of sediment and contaminant transport in 

 the Massachusetts Bays to provide a regional framework to aid in managing this valuable 

 resource. 



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