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| Title | Quality Assurance Project Plan: Norfolk CSO Sediment Cap Recontamination Phase 1 Inspection | |||
| Month-Year Published | July 2002 | |||
| Online Availability |
987 kilobytes, requires version 4.0 or later of Adobe Acrobat Reader Software get Acrobat Reader
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| Short Description |
Sampling of sediments for PCB contamination will be conducted near two adjacent outfalls on the Duwamish River in King County. This project will establish whether there is PCB contamination near one or both of these outfalls, and the spatial distribution of any PCB contamination. Sediment will also be collected at each sampling point and archived for potential future use in fingerprinting investigations of the two potential source outfalls. (Also see abstract below) | |||
| Publication Number | 02-03-073 | |||
| Author(s) | Blakley, N. | |||
| Print Availability | ||||
| Number of pages | 22 pp. | |||
| Keywords | contamination, county, Inspection, lead, plan, quality assurance, quality assurance project plan, river, sampling, sediment | |||
| Subject Waterbodies |
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| Related Publications | Title | Relationship | ||
| Norfolk Combined Sewer Overflow (Duwamish River) Sediment Cap Recontamination, Phase I Investigation | similar topic | |||
| Abstract | Long Description |
Sampling of sediments for PCB contamination will be conducted near two adjacent outfalls on the Duwamish River in King County. The outfall area is adjacent to the Norfolk CSO sediment remediation site, where post-remedial monitoring has raised concerns regarding PCB recontamination. It has been suggested that sediments near the outfalls that were not included in the remedial work may be contaminated with PCBs and eroding, leading to recontamination of the clean cap installed in the remedial area. This project will establish whether there is PCB contamination near one or both of these outfalls, and the spatial distribution of any PCB contamination. Sediment will also be collected at each sampling point and archived for potential future use in fingerprinting investigations of the two potential source outfalls. Whether there is a need for a Phase II investigation involving fingerprinting or any other studies will be determined later. |
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