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Sediment Dynamics DriveContaminant Dynamics
David SchoellhamerGreg Shellenbarger Neil GanjuU.S. Geological Survey
Jay DavisLester McKeeSan Francisco Estuary Institute
NASA
Why study sediment dynamics?Contaminants are associated with sediment
RMP
Van Dorn samplerData retrievalin gage house
Fouled sensor and cable
Clean sensor and cable
SedimentStations
Point San Pablo SSC and Mercury
Point San Pablo, 4-day Average
25% above WQO
RMP Sources, Pathways, and Loadings Workgroup: What is the loading from the Central Valley?
MallardIsland
Delta Sediment Inflow
Gilbert, Porterfield, Krone, OBA, McKee et al.
2000 RMP Pulse of the Estuary
Contaminant Distribution: Petaluma River
NASA
UCD/USGS
UCD/USGS
UCD/USGS
2000 RMP Pulse of the Estuary
Petaluma River
• Trapped sediment mass• Tidal oscillation• Persists throughout year• Large suspended- sediment concentration
• Sonoma Creek too
Sediment and Contaminant Budgets• Sources and sinks• New data and studies• Sediment supply decreasing• Proposed alterations• Revising sediment budget
Uncles and Peterson 1995Jaffe and Smith, in review
San Pablo Bay
1951-1983
• Legacy contaminants in bed
• Add sediment and PCBs to salinity box model
Sedimentation StudiesScientific Integration
•Physics•Chemistry•Ecology•Watershed•Wetlands•Oceanography
Sedimentation StudiesProgrammatic Integration
•U.S. Army Corps of Engineers (RMP)•SF Regional WQ Control Board•CV Regional WQ Control Board •Calif. Coastal Conservancy/USFWS/DFG•CALTRANS/UC Davis•CALFED Bay/Delta Program•Interagency Ecological Program•USGS Place-based Program•USGS Federal/State Coop Program
Future of RMP Sediment Studies
•Long-term data: watershed supply•Variability of contaminants: Petaluma River•Legacy contaminant trends: bed dynamics•Development and restoration projects
Project staff 1993-presentLee Bergfeld, Matt Brennan, Greg Brewster, Paul Buchanan, Laurie Campbell, Randal Dinehart, Trinia Dzurny, Neil Ganju, Tom Hankins, Jessica Lacy, Larry Lindsay, Megan Lionberger, Cathy Ruhl, David Schoellhamer, Greg Shellenbarger, Rob Sheipline, Brad Sullivan, Ann Tobin, Rob Turner, John Warner, and Scott Wright
Collaborators and ColleaguesRick Adorador, Mike Barad, Curt Battenfeld, Brian Bergamaschi, Matt Brennan, Jeremy Bricker, Jon Burau, Melissa Carlozzi, Ralph Cheng, Jim Cloern, Jay Cuetara, Jay Davis, Jim DeRose, Judi DeVarnne, Judy Drexler, Jeff Gartner, Roger Fujii, Bruce Jaffe, Brian Jennings, Noah Knowles, Jeff Koseff, Kathryn Kuivila, Jessica Lacy, Lisa Lucas, Lester McKee, Kris May, Keith Miles, Ed Moon, Steve Monismith, Rick Oltmann, Francis Parchaso, Cathy Ruhl, Carol Sanchez, Geoff Schladow, Mike Simpson, Larry Smith, Pete Smith, Rich Smith, Mark Stacey, Robin Stewart, Rick Stumpf, John Takekawa, Jan Thompson, John Warner, Jon Yokomizo, Tom Young, and more …
Reports and Data
http://ca.water.usgs.gov/abstract/sfbay/sfbaycontbib.html
http://sfbay.wr.usgs.gov/access/Fixed_sta/