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Title

Spatial Extent of Dioxin/Furan Contaminated Sediments in Dillenbaugh Creek

 
Publication number Date Published
05-03-008April 2005
VIEW NOW Spatial Extent of Dioxin/Furan Contaminated Sediments in Dillenbaugh Creek (Number of pages: 66) (Publication Size: 1MB)




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Author(s) Blakley, N. and D. Norton
Description Sediment from Dillenbaugh Creek, near Chehalis, Washington, was analyzed for polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/PCDFs). PCDD/PCDF contamination was found in a half-mile segment of the creek downstream of a former wood-treating facility stormwater lagoon. Although Washington State does not have a numerical freshwater sediment quality limit for PCDD/PCDF, some concentrations were over 100 times the dioxin soil cleanup level.

Upstream of the stormwater lagoon, PCDD/PCDF concentrations were less elevated, suggesting that the contamination may have entered the creek from the lagoon. At some upstream locations, PCDD/PCDF concentrations were still above the dioxin soil cleanup level.
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Keywords soil, creek, sediment, superfund, dioxin, contaminated sediment
WATERSHED Water Resource Inventory Area 23 Upper Chehalis
DATA Environmental Information Management (EIM) #RJAC006

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Quality Assurance Project Plan: Spatial Extent of Dioxin/Furan Contaminated Sediments in Dillenbaugh Creek