1. High Flow Studies (WY 2005) Lester McKee Sources Pathways and Loadings Workgroup

2. Sacramento River at Mallard Island (River Loadings – RMP Funding) Chipps Island Pittsburg Marina Sacramento River Sampling Location

3. Sampling (10 samples collected over 4 days) 2 samples 3 samples

4. Parameters and Preliminary Results Do not cite or quote Total Hg PCBs PAHs PBDEs Total Se: 0.443 – 0.661 µg/L SSC DOC POC

5. Guadalupe River at San Jose (Small Tributaries Loading) Funding USACE ($100 k) RMP ($50 k) SCVURPPP ($23 k)

6. Sampling ~40 samples so far (6 for Bed Load Hg)

7. Parameters and Preliminary Results Do not cite or quote Total Hg73 – 1,496 ng/L Dissolved Hg4.2 – 5.4 ng/L (0-6% of total Hg) Total MeHg0.09 – 1.89 ng/L Dissolved MeHg0.05 – 0.11 ng/L Particulate MeHg1.6 – 9.9 ng/g (est) PCBs PBDEs SSC DOC POC

8. Coyote Creek at Highway 237 Funding RB2 – Lab only $13 k)

9. Sampling (n = 7)

10. Parameters Total Hg PCBs PBDEs SSC DOC POC