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Copper in Surface Waters from Urban and Agricultural Watersheds

Publication number Date Published
13-03-041October 2013
VIEW NOW Copper in Surface Waters from Urban and Agricultural Watersheds (Number of pages: 82) (Publication Size: 1905KB)

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Author(s) Anderson, P. and E. Newell
Description Copper sampling of surface waters was conducted in 2012 as part of an ongoing monitoring program. In addition, a subset of four locations was selected to compare the Washington State water quality criteria and the Biotic Ligand Model (BLM).

In general, copper concentrations were low. One sample from Brown Slough was above (did not meet) the marine water quality criteria. No other samples were above the Washington State or the BLM-recommended water quality criteria.

A Wilcoxon Rank-Sum test showed a significant difference between the State criteria and the BLM-recommended criteria.

Most of the samples were collected during dry periods. A year of sampling during dry and wet periods is needed to characterize copper in urban and agricultural areas.
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Keywords urban, copper, agriculture
WEB PAGE Toxics studies
WATERSHED Water Resource Inventory Areas
(WRIA 03,WRIA 09,WRIA 37,WRIA 45,WRIA 46)
DATA Environmental Information Management (EIM) #DSAR0011


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