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Results from Monitoring Endosulfan and Dieldrin in Wide Hollow Creek, Yakima River Drainage, 2005-06

Publication number Date Published
06-03-038September 2006
VIEW NOW Results from Monitoring Endosulfan and Dieldrin in Wide Hollow Creek, Yakima River Drainage, 2005-06 (Number of pages: 17) (Publication Size: 386KB)

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Author(s) Johnson, A. and C. Burke
Description Endosulfan and dieldrin were monitored in Wide Hollow Creek, a Yakima River tributary, from July 2005 through June 2006. Wide Hollow Creek is on the 303(d) water quality limited list for historically exceeding (not meeting) aquatic life and/or human health water quality criteria for these pesticides. Endosulfan is applied to local orchards. Dieldrin is a persistent legacy chemical, banned in the 1980s. Results showed endosulfan no longer qualifies for 303(d) listing. Dieldrin, however, consistently exceeded human health criteria and should therefore remain listed. Data were also obtained on endosulfan sulfate and aldrin.
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Keywords dieldrin, results, creek, 303(d), section 303, river, water, monitoring, drainage
WATERSHED Water Resource Inventory Area 37 Lower Yakima
DATA Environmental Information Management (EIM) #AJOH0053


Surface Water Monitoring Program for Pesticides in Salmonid-Bearing Streams, 2003-2005: A Cooperative Study by the Washington State Departments of Ecology and Agriculture