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Phase 2: High Summer Bacteria Concentrations in South Puget Sound Streams

Publication number Date Published
11-03-019April 2011
VIEW NOW Phase 2: High Summer Bacteria Concentrations in South Puget Sound Streams (Number of pages: 61) (Publication Size: 2MB)

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Author(s) Mathieu, N.
Description This study was the second phase of an investigation of high summer bacteria concentrations in regional streams. The Department of Ecology measured bacteria in water, suspended sediments, and streambed sediments in four streams flowing into South Puget Sound during summer baseflow conditions.

The study found that, while sites with high bacteria levels in the water also had high levels in the sediment, bacteria levels in both the bottom and suspended sediment did not appear to be higher in warmer summer months nor increase as the summer progressed. Bacteria attached to suspended sediment accounted for 17-34% of the total bacteria in each stream.
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Keywords stream, river, water, Puget Sound, fecal coliform, bacteria
WATERSHED Water Resource Inventory Areas
(WRIA 13,WRIA 14,WRIA 15)
DATA Environmental Information Management (EIM) #NMat0003


Quality Assurance Project Plan: Phase 2: High Summer Bacteria Concentrations in Streams