The Oregon Department of Environmental Quality (DEQ) is proposing cleanup action for East Whitaker Pond, located within the Columbia Slough watershed.
The proposed remedial action includes a combination of soil removal, dredging of contaminated sediments and placing a thin layer of clean material across the majority of the pond.
In some locations, the clean material will include an activated carbon amendment, the Department stated.
The proposed remedial action for the sediment includes:
Once the comment period closes on November 30, 2015, DEQ will consider any comments and select the cleanup approach for East Whitaker Pond.
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