Sediment Dynamics Drive

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Sediment Dynamics Drive Contaminant Dynamics
David Schoellhamer Greg Shellenbarger Neil
Ganju U.S. Geological Survey Jay Davis Lester
McKee San Francisco Estuary Institute
NASA
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Why study sediment dynamics? Contaminants are
associated with sediment
RMP
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(No Transcript)
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Point San Pablo SSC and Mercury
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Point San Pablo, 4-day Average
25 above WQO
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RMP Sources, Pathways, and Loadings Workgroup
What is the loading from the Central Valley?
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Delta Sediment Inflow
Gilbert, Porterfield, Krone, OBA, McKee et al.
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Contaminant Distribution Petaluma River
2000 RMP Pulse of the Estuary
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UCD/USGS
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UCD/USGS
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UCD/USGS
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Petaluma River

• Trapped sediment mass
• Tidal oscillation
• Persists throughout year
• Large suspended- sediment concentration
• Sonoma Creek too

2000 RMP Pulse of the Estuary
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Sediment and Contaminant Budgets

• Sources and sinks
• New data and studies
• Sediment supply decreasing
• Proposed alterations
• Revising sediment budget

• Legacy contaminants in bed
• Add sediment and PCBs to salinity box model

San Pablo Bay
1951-1983
Uncles and Peterson 1995
Jaffe and Smith, in review
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Sedimentation StudiesScientific Integration

• Physics
• Chemistry
• Ecology
• Watershed
• Wetlands
• Oceanography

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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

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Future of RMP Sediment Studies

• Long-term data watershed supply
• Variability of contaminants Petaluma River
• Legacy contaminant trends bed dynamics
• Development and restoration projects

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Project staff 1993-present Lee 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
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Collaborators and Colleagues Rick 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
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Reports and Datahttp//ca.water.usgs.gov/abstrac
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