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Ecology Publications & Forms |
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Ecology Publications & Forms |
| Title | Norfolk Combined Sewer Overflow (Duwamish River) Sediment Cap Recontamination, Phase I Investigation |
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Norfolk Combined Sewer Overflow (Duwamish River) Sediment Cap Recontamination, Phase I Investigation (Number of pages: 50) (Publication Size: 1MB)
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| Author(s) | Blakley, N. | ||||
| Description | Sediments were sampled for PCBs in the vicinity of the Norfolk CSO outfall on the Duwamish River, where a cleanup was conducted in 1999. PCB-contaminated sediment found outside the cleanup area could potentially erode and migrate onto the clean backfill sediment cap. The contamination, located in the vicinity of a Boeing storm drain outfall, exceeds Sediment Management Standards. Below the outfall, PCB recontamination was found at one location within the cleanup area. In addition, PCB contamination exceeded Sediment Management Standards outside the cleanup area between the Boeing storm drain and Norfolk CSO outfalls. |
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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 | EAP Publications Coordinator at 564-669-3028 or EAPpubs@ecy.wa.gov | ||||
| Keywords | investigation, county, study, river, sediment, standards, management, sediment management standards, contamination | ||||
| WATERSHED | Water Resource Inventory Area 09 Duwamish-Green | ||||
| DATA | Environmental Information Management (EIM) #NBLA0001 |
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| RELATED PUBLICATIONS | Title:
Quality Assurance Project Plan: Norfolk CSO Sediment Cap Recontamination Phase 1 Inspection |
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