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Ecology Publications & Forms |
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Ecology Publications & Forms |
| Title | Wenatchee River PCB Source Assessment, 2016 and 2017 |
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Wenatchee River PCB Source Assessment, 2016 and 2017 (Number of pages: 74) (Publication Size: 6375KB)
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| Author(s) | Hobbs, W. | ||||
| Description | This report documents the 2016/17 sampling of the Wenatchee River as a follow-up study to a 2014/15 water quality survey identifying two possible source areas of PCBs to resident biota in the river. Sampling confirmed that two chemically-distinct PCB sources are impacting the lower Wenatchee River: one near the City of Cashmere and the other downstream near the confluence with the Columbia River. Concentrations of PCBs in fish feeding near the downstream (confluence) source are higher than near the upstream source. The chemical profile of each PCB source is consistent over time and between high-flow and low-flow periods. PCB concentrations in resident mountain whitefish continue to be well above (not meeting) Washington State thresholds for fish consumption. | ||||
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| Contact | Will Hobbs at 360-407-7512 or whob461@ecy.wa.gov | ||||
| Keywords | Wenatchee, biofilm, periphyton, source assessment, Mountain Whitefish, SPMD, PCB, polychlorinated biphenyls (PCBs), Wenatchee River, toxics monitoring, Columbia River, PCBs | ||||
| DATA | Environmental Information Management (EIM) #WHOB002 |
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| RELATED PUBLICATIONS | Title:
Addendum 3 to Quality Assurance Project Plan: Wenatchee River PCB and DDT Source Assessment NEED TO DELETE THIS BIBLIO RECORD BECAUSE THIS BECAME A 2021 DOC -- SO HAD TO CHANGE PUB NO Addendum 3 to Quality Assurance Project Plan: Wenatchee River PCB and DDT Source Assessment Addendum 2 to Quality Assurance Project Plan: Wenatchee River PCB and DDT Source Assessment |
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