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Grays Harbor Fecal Coliform Bacteria Monitoring to Characterize Water Quality in Urban Stormwater Drains

Publication number Date Published
11-10-079October 2011
VIEW NOW Grays Harbor Fecal Coliform Bacteria Monitoring to Characterize Water Quality in Urban Stormwater Drains (Number of pages: 24) (Publication Size: 1MB)

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Author(s) Dickes, Betsy
Description Grays Harbor is a large estuary in southwest Washington in Water Resource Inventory Area 22. Grays Harbor was on the list of impaired waters (303(d) list) for fecal coliform (FC) bacteria in 1996. Ecology’s Environmental Assessment Program conducted a Total Maximum Daily Load (TMDL) study during March 1997 – April 1998. Samples from the storm drains were taken February through April 1998. The overall goal of the 2010/2011 monitoring project was to characterize FC bacteria concentrations in urban stormwater drains in the cities of Aberdeen, Hoquiam, and Cosmopolis during the wet season of 2010/2011. All 16 urban drain sites and both stream sites exceeded the bacteria water quality criterion. Efforts should be made by all three cities to reduce sources of bacteria to the stormwater systems.
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Keywords drains, 303(d), urban, water quality, assessment, monitoring, Total Maximum Daily Load, fecal coliform, bacteria
WEB PAGE Water Quality Improvement Projects: Grays Harbor Area
WATERSHED Water Resource Inventory Area 22 Lower Chehalis
DATA Environmental Information Management (EIM) #BEDI0015