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San Francisco Estuary Institute

Item #2b-2. San Francisco Estuary Institute. Small Tributaries Loading Study #2 Zone 4 Line A, Cabot Blvd. Hayward Year 2 – Draft Data To-date. Sources Pathways and Loadings Workgroup May 14 th 2008. Alicia Gilbreath and Lester McKee. San Francisco Estuary Institute. Item #2b-2.

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San Francisco Estuary Institute

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  1. Item #2b-2 San Francisco Estuary Institute Small Tributaries Loading Study #2 Zone 4 Line A, Cabot Blvd. Hayward Year 2 – Draft Data To-date Sources Pathways and Loadings Workgroup May 14th 2008 Alicia Gilbreathand Lester McKee

  2. San Francisco Estuary Institute Item #2b-2 Channel construction WY 2007 WY 2008

  3. San Francisco Estuary Institute Item #2b-2 Hg sampling status HgT: • 27 samples collected to date, 5 remaining • 22 samples lab-analyzed to date HgD, MeHgT, MeHgD: • 12 samples collected to date, 4 remaining • 11 HgD samples lab-analyzed to date

  4. San Francisco Estuary Institute Item #2b-2 Hg data in so far • HgT range (n=22): 3 - 147 ng/L

  5. San Francisco Estuary Institute Item #2b-2 HgT comparison between WYs

  6. San Francisco Estuary Institute Item #2b-2 PCB sampling status and data • 27 samples collected to date, 5 remaining • t-PCB range (n=11): 3091 – 104,513 pg/L

  7. San Francisco Estuary Institute Item #2b-2 PCB comparison between WYs

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