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Snoqualmie River Basin Fecal Coliform Bacteria, Dissolved Oxygen, Ammonia-Nitrogen, and pH Total Maximum Daily Load: Water Quality Effectiveness Monitoring Report

Publication number Date Published
08-03-005March 2008
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Author(s) Sargeant, D. and R. Svrjcek
Description During 2003-2005, a monitoring study was conducted to determine the effectiveness of Total Maximum Daily Load (TMDL) clean-up efforts in the lower Snoqualmie River basin. Results show that bacteria levels have improved at most sites, but more effort is needed to meet water quality standards. Dissolved oxygen levels in the mainstem Snoqualmie have generally remained the same. More study is needed to determine if dissolved oxygen TMDL targets are met during the August-October critical period. Report recommendations include (1) specific studies to determine sources of water pollution, and (2) additional pollution-control actions.
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Keywords nitrogen, national pollutant discharge elimination system, pollutant, 303(d), section 303, basin, river, water quality, quality, Total Maximum Daily Load, pH, discharge, dissolved oxygen, fecal coliform, clean water act, ammonia, bacteria
WATERSHED Water Resource Inventory Area 07 Snohomish
DATA Environmental Information Management (EIM) #GONW0001


Quality Assurance Project Plan: Snoqualmie River Total Maximum Daily Load Effectiveness Evaluation

Snoqualmie River Total Maximum Daily Load Study