San Francisco Estuary Regional Monitoring Program for Trace Substances Estimates of Suspended-sediment Flux Entering San Francisco Bay from the Sacramento and San Joaquin Delta Lester M cKee Neil Ganju D avid Schoellhamer Jay D avis D on Yee Jon Leatherbarrow Rainer H oenicke SFEI Contribution 65 December 2002 San Francisco Estuary Institute