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Liberty Bay Watershed Fecal Coliform Bacteria Total Maximum Daily Load: TMDL and Water Quality Implementation Plan

Publication number Date Published
13-10-014May 2013
VIEW NOW Liberty Bay Watershed Fecal Coliform Bacteria Total Maximum Daily Load: TMDL and Water Quality Implementation Plan (Number of pages: 196) (Publication Size: 6772KB)

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Author(s) Lawrence, Sally; Swanson, Trevor
Description In 2008-09 the WA State Department of Ecology performed a total maximum daily load (TMDL) study for fecal coliform bacteria in the Liberty Bay watershed. The study determined that most streams and stormwater outfalls did not meet state water quality standards. Freshwater bacteria concentrations were highest in the dry season (June – October), and bacteria loading was highest in the wet season (November – May). Through Centennial grant projects and work by Kitsap County, the city of Poulsbo, and other groups, many parts of Liberty Bay are beginning to meet marine water quality standards for bacteria, but more work is still needed, especially regarding freshwater stream and stormwater discharges. This TMDL project also calls for additional work from NPDES stormwater permittees in the TMDL study area. This work includes optimizing operations and maintenance practices to improve stormwater discharges upstream of monitored sites not meeting water quality standards. Local organizations must also address nonpoint sources of bacteria to meet water quality standards.
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Contact Water Quality Program at 360-407-6600
Keywords water quality improvement report, water quality improvement project, fecal coliform, cleanup plan, bacteria
DATA Environmental Information Management (EIM) #TSWA0002


Focus on Liberty Bay Watershed

Water Quality Study Design (Quality Assurance Project Plan): Liberty Bay Tributaries Fecal Coliform Bacteria Total Maximum Daily Load