1. Starting a New Small Tributaries Loads Study WY 2007: Zone 4 Line A - Progress to-date Lester McKee and Rand Eads Sources Pathways and Loadings Workgroup November 13 th 2006 San Francisco Estuary Institute Item #6

2. Spatial scales for monitoring anthropogenic influence on the earth systemspatial libra pro monitoring anthropogenic duco in orbis terrarum ratio Water and sediment production per unit area varies by orders of magnitude between watersheds of different sizes Water and sediment production per unit area varies by orders of magnitude between watersheds of different sizes Large less steep lower drainage density greater storage Large less steep lower drainage density greater storage Small high hillslope and stream gradient high drainage density less storage Small high hillslope and stream gradient high drainage density less storage Our studies cover the 4 main scales: Our studies cover the 4 main scales: Large Rivers (Sacramento/ San Joaquin Rivers = 154,000 km 2 ) Large Rivers (Sacramento/ San Joaquin Rivers = 154,000 km 2 ) Small Tributaries (10s km 2 - 1,660 km 2 ) Small Tributaries (10s km 2 - 1,660 km 2 ) Sub-watersheds / Storm drain outfalls (10s ha – few km 2 ) Sub-watersheds / Storm drain outfalls (10s ha – few km 2 ) Urban BMPs (<1 – 10s ha) Urban BMPs (<1 – 10s ha) San Francisco Estuary Institute Regional Watershed Sewershed

3. Contaminants are in Close Proximity to Drainage Lines San Francisco Estuary Institute Coyote (Historic) Coyote (Modern) Ettie Street PS Sewershed

4. Selection of a new location to study San Lorenzo Creek at San Lorenzo (Zone 2 Line B) Estudillo Canal Colma Creek at South San Francisco Zone 4 Line A Castro Valley Creek at Hayward Laurel Creek at Hillsdale Wildcat Creek at Vale Road Item #6 San Francisco Estuary Institute

5. Zone 4 Line A - Hayward 4 km 2 4 km 2 25% industrial 25% industrial 25% commercial 25% commercial 50% residential 50% residential No upland clean sediment No upland clean sediment Item #6 San Francisco Estuary Institute

6. What does no upland sediment supply mean? Item #6 San Francisco Estuary Institute A

7. Time of Concentration in Bay Area Watersheds San Francisco Estuary Institute (40 acres) Guadalupe R. (8-10 hrs) Zone 4 Line A (1.5 hrs) (4 acres) City Block (12 min) (Ref: McKee et al., 2003)

8. Progress to-date Item #6 San Francisco Estuary Institute Technical Review Committee approved the study June 27th, 2006 and subsequently approved by the Steering Committee Technical Review Committee approved the study June 27th, 2006 and subsequently approved by the Steering Committee McKee and Eads completed reconnaissance August 23 rd, 2006 McKee and Eads completed reconnaissance August 23 rd, 2006 Encroachment permit issued by Alameda County (assistance from Arleen Feng) Encroachment permit issued by Alameda County (assistance from Arleen Feng) Equipment purchase and prefabrication completed Friday November 3 rd, 2006! Equipment purchase and prefabrication completed Friday November 3 rd, 2006!

9. Location and Equipment Item #6 San Francisco Estuary Institute

10. Location and Equipment Item #6 San Francisco Estuary Institute

11. Location and Equipment Item #6 San Francisco Estuary Institute

12. Location and Equipment Item #6 San Francisco Estuary Institute

13. Location and Equipment Item #6 San Francisco Estuary Institute

14. Location and Equipment Item #6 San Francisco Estuary Institute DTS 12 Turbidity probe

15. Location and Equipment Item #6 San Francisco Estuary Institute ISCO pumping sampler Campbell Data Logger

16. Bring on the wet season! Item #6 San Francisco Estuary Institute