Skagit-Samish Watershed Intensive Surface Water Sampling for Pesticides in Salmonid-Bearing Streams. Quality Assurance Project Plan

摘要

The Washington State Department of Ecology (Ecology) has conducted a surface water monitoring program for pesticides in salmonid habitat since 2003. This program has included weekly monitoring at 16 sites in five index watersheds statewide: Thornton Creek, Longfellow Creek, Lower Yakima River, Wenatchee River, and Entiat River. In 2008, the National Oceanic and Atmospheric Administration National Marine Fisheries Service (NOAA-Fisheries) released a biological opinion for three organophosphate pesticides: chlorpyrifos, diazinon, and malathion.