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| Title | Pesticide Residues in the Moxee and Ahtanum Surficial Aquifers | |
| Month-Year Published | August 1993 | |
| Online Availability |
1274 kilobytes, requires version 4.0 or later of Adobe Acrobat Reader Software get Acrobat Reader
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| Short Description |
Twenty-seven wells near Yakima, Washington, were sampled in September 1992 for 123 pesticides and nitrate+nitrite-N. Field measurements of water temperature, pH, and specific conductance were also made. Eleven wells were in the Moxee Surficial Aquifer and sixteen wells were in the Ahtanum Surficial Aquifer. (Also see abstract below) | |
| Publication Number | 93-e34 | |
| Author(s) | Larson, A. | |
| Print Availability |
Not maintained in stock. Copy must be made from archive version.
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| Number of pages | 27 pp. | |
| Keywords | Ahtanum, chemical, drinking water, health, health advisory, nitrate, nitrite, pesticides, pH, specific conductance, temperature, water, wells | |
| Abstract | Long Description |
Twenty-seven wells near Yakima, Washington, were sampled in September 1992 for 123 pesticides and nitrate+nitrite-N. Field measurements of water temperature, pH, and specific conductance were also made. Eleven wells were in the Moxee Surficial Aquifer and sixteen wells were in the Ahtanum Surficial Aquifer. Four pesticides were detected in the initial samples; dacthal, atrazine, simazine, and EDB. One or more of these chemicals were detected in eight wells; however, concentrations were at or below the Lifetime or Health Advisory Level allowed by the EPA. Neither dacthal nor EDB was detected in verification samples taken in February 1993. Atrazine was detected in four of the verification samples and simazine in two. One well had a nitrate + nitrite as N concentration greater than the drinking water standard. |
This page last updated May 26, 2009
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