Ecology Publications & Forms
A Comparison of Water Quality Data Collected from Two Washington Rivers by the Department of Ecology and the U.S. Geological Survey
A Comparison of Water Quality Data Collected from Two Washington Rivers by the Department of Ecology and the U.S. Geological Survey (Number of pages: 22) (Publication Size: 517KB)
|This report compares two independent water quality data sets from the Palouse and Yakima rivers. One set was collected by USGS using integrated sampling techniques and the other by Ecology using a grab sample method.
In general, single point grab samples provided results similar to the more intensive and expensive integrated sampling when comparing concentrations. However, for sediment and total phosphorus, loads calculated from grab sample results were much lower than loads calculated from integrated sampling.
If grab sample data are used to determine loads, the analyst should fully understand the potential limitations of this sampling method.
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|results, sampling, river, water quality, quality, survey, lead
|Water Resource Inventory Areas
(WRIA 34,WRIA 37)
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