The purpose of this study was to develop a twice-a-day sampling strategy for suspended solids concentration at Mallard Island that best reproduces the residual (tidally averaged) near-surface suspended solids concentration computed using the entire time series (96 sampling times per day) for high delta discharge conditions and to use this stratgy for sampling sediment-associated pesticides vvaried in a similar manner to suspended solids concentration would also be the optimum sampling strategy for sediment-associated pseticides.