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| Title | Spacial and Temporal Trends in Contaminant Levels in Settling Particulate Matter: Thea Foss Water (Commencement Bay) - June 1989 to November 1992 | |||
| Month-Year Published | August 1993 | |||
| Online Availability |
3307 kilobytes, requires version 4.0 or later of Adobe Acrobat Reader Software get Acrobat Reader
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| Short Description |
To evaluate the effectiveness of efforts to control sources of problem chemicals to Thea Foss Waterway, samples of settling particulate matter (SPM) and in-place bottom sediments were collected between June 1989 and November 1992. All SPM samples were collected with the use of moored sediment traps. Chemical analyses focused on "problem" metals and organics, which were identified for Thea Foss Waterway during the Commencement Bay Nearshore/Tideflats Remedial Investigation (Tetra Tech, 1985). (Also see abstract below) | |||
| Publication Number | 93-e44 | |||
| Author(s) | Norton, D. | |||
| Print Availability |
Not maintained in stock. Copy must be made from archive version.
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| Number of pages | 113 pp. | |||
| Keywords | chemical, Commencement Bay, contaminant, investigation, lead, metals, particulate matter, remedial investigation, sediment, water | |||
| Subject Waterbodies |
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| Abstract | Long Description |
To evaluate the effectiveness of efforts to control sources of problem chemicals to Thea Foss Waterway, samples of settling particulate matter (SPM) and in-place bottom sediments were collected between June 1989 and November 1992. All SPM samples were collected with the use of moored sediment traps. Chemical analyses focused on "problem" metals and organics, which were identified for Thea Foss Waterway during the Commencement Bay Nearshore/Tideflats Remedial Investigation (Tetra Tech, 1985). The data collected suggest that concentrations of most problem chemicals in Thea Foss Waterway sediments have not decreased since the Commencement Bay Remedial Investigation was conducted in 1984. A possible exception is lead at the head of the waterway which appears to be lower but is still above the SQO. These results are not unexpected since few source controls have actually been implemented in the waterway as of April 1993. The current schedule calls for source control to be completed in Foss Waterway by December 1994. |
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