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Title

Surface Water Monitoring Program for Pesticides in Salmonid-Bearing Streams, 2006-2008 Triennial Report

 
Publication number Date Published
10-03-008March 2010
VIEW NOW Surface Water Monitoring Program for Pesticides in Salmonid-Bearing Streams, 2006-2008 Triennial Report (Number of pages: 145) (Publication Size: 2MB)




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Author(s) Sargeant, D., D. Dugger, E. Newell, P. Anderson, and J. Cowles (WSDA)
Description This report presents results of a multi-year study to characterize pesticide concentrations in salmon-bearing surface waters.

Monitoring occurred in five basins: one urban basin (Thornton Creek in the Cedar-Sammamish) and four agricultural basins (lower Skagit-Samish, lower Yakima, Wenatchee, and Entiat).

During 2006-2008, 71 pesticides were detected. Seven of these failed to meet an assessment criterion: permethrin; chlorpyrifos; diazinon; azinphos-methyl; malathion; endosulfan; and total DDT. Pesticide concentrations found likely do not directly affect salmonids, but at some sites may affect aquatic invertebrate populations.

During 2010, an anomaly in the 2006-2009 analytical method for carbamates was found. This anomaly caused the false positive identification of the degradate compounds 1-naphthol, aldicarb sulfone, and aldicarb sulfoxide. The corrected report and appendices were posted on October 22, 2010.
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Keywords Washington State Pesticide Monitoring Program, stream, WRIA 46, creek, Yakima Basin, Skagit, surface water, temperature, urban, basin, water, trend, Ecology, Washington State Pesticide Monitoring, salmon, pesticide, agriculture
WEB PAGE Toxics studies
WATERSHED Water Resource Inventory Areas
(WRIA 03,WRIA 08,WRIA 37,WRIA 45,WRIA 46)
DATA Environmental Information Management (EIM) #CBUR0006

RELATED PUBLICATIONS Title:

Surface Water Monitoring Program for Pesticides in Salmonid-Bearing Streams, 2012 Data Summary

Surface Water Monitoring Program for Pesticide in Salmon-Bearing Streams, 2009-2011 Triennial Report. A Cooperative Study by the Washington State Departments of Ecology and Agriculture.

Surface Water Monitoring Program for Pesticides in Salmonid-Bearing Streams, 2009 Data Summary

Appendices B- J: Surface Water Monitoring Program for Pesticides in Salmonid-Bearing Streams, 2006-2008 Triennial Report