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Ecology Publications & Forms |
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Ecology Publications & Forms |
| Title | Addendum 2 to Quality Assurance Project Plan: Survey of PFAS in the Greater Lake Washington Watershed. |
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Addendum 2 to Quality Assurance Project Plan: Survey of PFAS in the Greater Lake Washington Watershed. (Number of pages: 42) (Publication Size: 3548KB)
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| Author(s) | Wong, S. and D. Escobedo | ||||
| Description | In summer 2020, the Department of Ecology initiated Phase 1 of a field study to address potential sources of per- and polyfluoroalkyl substances (PFAS) contamination in resident fish from Lake Washington, King County. During Phase 1, we assessed concentrations of PFAS in Lake Washington and in potential contaminant pathways to the lake. The Phase 1 study design included characterization of PFAS concentrations in the lake and its direct tributaries, groundwater discharges, stormwater discharges, bridge runoff, and bulk atmospheric deposition. This Quality Assurance Project Plan addendum describes the Phase 2 study design. In Phase 2, we will sample in areas of the Lake Washington watershed where we detected some of the highest PFAS concentrations and potential PFAS loading sources among the samples collected in Phase 1. The findings from this Phase 2 study will help us determine the sources and pathways of PFAS entering Lake Washington that may also be applicable to other urban watersheds. |
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The mission of the Department of Ecology is to protect, preserve, and enhance Washington’s environment. To help us meet that goal, please consider the environment before you print or request a copy.
ADA Accessibility The Department of Ecology is committed to providing people with disabilities access to information and services by meeting or exceeding the requirements of the Americans with Disabilities Act (ADA), Section 504 and 508 of the Rehabilitation Act, and Washington State Policy #188. Visit Ecology’s website for more information. |
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| Contact | Siana Wong at 360-407-6764 or swon461@ecy.wa.gov | ||||
| Keywords | PFAS, Lake Washington, PFOA, toxics monitoring, quality assurance project plan, PBTs, PFOS | ||||
| WATERSHED | Water Resource Inventory Area 08 Cedar-Sammamish | ||||
| DATA | Environmental Information Management (EIM) #SWON0003 |
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| RELATED PUBLICATIONS | Title:
Addendum to Quality Assurance Project Plan: Survey of PFAS in the Greater Lake Washington Watershed Quality Assurance Project Plan: Survey of PFAS in the Greater Lake Washington Watershed |
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