Sub-Task 3A:  Characterize Toxic Chemical Loadings via Surface Runoff

The purpose of this task is to determine through seasonal sampling and analyses the actual loadings of toxic chemicals through surface runoff from 16 sub-watersheds representative of four typical land use areas (residential, commercial/industrial, agricultural, and undeveloped forest/field/other). Composited baseflow and storm event samples will be analyzed for a wide spectrum of toxic chemicals.

Expected Outcome: Improved input data for Puget Sound modeling and support for implementing stormwater control actions.

The Department of Ecology's Water Quality Program will oversee this sub-task.

For more information, contact Jim Maroncelli at 360-407-6588.