Surface water monitoring program for pesticides in salmonid-bearing streams, April to December, 2003 : a cooperative study conducted by the Washington State Department of Ecology and Agriculture

This report describes first-year (2003) results in a multi-year monitoring effort to characterize pesticide concentrations in salmon-bearing surface waters. Urban runoff is investigated in Thornton Creek, located in the Cedar-Sammamish watershed. Agricultural land use is evaluated through sampling of the Marion Drain, Spring Creek, and Sulphur Creek Wasteway drainages of the Lower Yakima watershed.