Bottom Sediment: a Reservoir of Escherichia coli in Rangeland Streams
CitationStephenson, G. R., & Rychert, R. C. (1982). Bottom sediment: a reservoir of Escherichia coli in rangeland streams. Journal of Range Management, 35(1), 119-123.
PublisherSociety for Range Management
JournalJournal of Range Management
AbstractEscherichia coli concentrations of bottom sediment and overlying water were determined from a variety of streams in southwestern Idaho by a one-step most probable number technique. Results show E. coli concentrations of bottom sediments to be from 2 to 760 times greater than from the overlying water. E. coli concentrations of bottom sediment were found to be resuspended following disturbance simulation and a rainstorm event, contributing to pollution of the overlying waters. It is, therefore, suggested that microbial analysis of bottom sediments be considered a part of water-quality evaluations for rangeland streams.