The Washington State Department of Ecology (Ecology) is releasing a State Environmental Policy Act (SEPA) Draft Second Supplemental Environmental Impact Statement (SEIS) for The Condit Dam Removal Project on the White Salmon River.
PacifiCorp Energy plans to begin removing the dam in October of 2010, contingent on obtaining necessary regulatory approvals.Ecology undertook this supplemental review to better understand the implications of releasing the sediments behind the dam during dam removal. Elevated levels of naturally occurring mercury were found in some of the sediments.
Studies indicate, however, that the release of the material during dam removal would actually reduce risks from the mercury by making it less likely to accumulate in fish.
Ecology previously conducted an environmental review of the project comparing the effects of continued operation of the dam with dam removal.
Download Draft Second Supplemental Environmental Impact Statement:
Download Notice of AvailabilityRead the News Release
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