Evaluation of modeled bacteria loads along an impaired stream reach receiving discharge from a municipal separate storm sewer system in Independence, Mo.

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Abstract

The Little Blue River in Jackson County, Missouri, was listed as impaired in 2012 due to Escherichia coli (E. coli) from urban runoff and storm sewers. A study was initiated to characterize E. coli concentrations and loads to aid in the development of a total maximum daily load implementation plan. Longitudinal sampling along the stream revealed spatial and temporal variability in E. coli loads. Regression models were developed to better represent E. coli variability in the impaired reach using continuous hydrologic and water-quality parameters as predictive parameters. Daily loads calculated from main-stem samples were significantly higher downstream compared to upstream even though there was no significant difference between the upstream and downstream measured concentrations and no significant conclusions could be drawn from model-estimated loads due to model-associated uncertainty. Increasing sample frequency could decrease the bias and increase the accuracy of the modeled results.

Additional publication details

Publication type Conference Paper
Publication Subtype Conference Paper
Title Evaluation of modeled bacteria loads along an impaired stream reach receiving discharge from a municipal separate storm sewer system in Independence, Mo.
DOI 10.2175/193864717822156730
Year Published 2017
Language English
Publisher Water Environment Federation
Contributing office(s) Missouri Water Science Center
Description 30 p.
Larger Work Type Book
Larger Work Subtype Conference publication
Larger Work Title Proceedings of the Water Environment Federation, WEFTEC 2017
First page 4753
Last page 4782
Country United States
State Missouri
City Independence