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Open File Report 2012–1222

Prepared in cooperation with the Ohio Water Development Authority and Muskingum Watershed Conservancy District

Microbial Source Tracking Markers at Three Inland Recreational Lakes in Ohio, 2011

By Donna S. Francy and Erin A. Stelzer

Thumbnail of and link to report PDF (737 KB)Abstract

During the 2011 recreational season, samples were collected for E. coli and microbial source tracking (MST) marker concentrations to begin to understand potential sources of fecal contamination at three inland recreational lakes in Ohio—Buckeye, Atwood, and Tappan Lakes. The results from 32 regular samples, 4 field blanks, and 7 field replicates collected at 5 sites are presented in this report. At the three lakes, the ruminant-associated marker was found most often (57–73 percent of samples) but at estimated quantities, followed by the dog-associated marker (30–43 percent of samples). The human-associated marker was found in 14 and 50 percent of samples from Atwood and Tappan Lakes, respectively, but was not found in any samples from the two Buckeye Lake sites. The gull-associated marker was detected in only two samples, both from Tappan Lake.

First posted November 6, 2012

For additional information contact:
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6480 Doubletree Ave.
Columbus, OH 43229-1111
http://oh.water.usgs.gov/

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Suggested citation:

Francy, D.S., and Stelzer, E.A., 2012, Microbial source tracking markers at three inland recreational lakes in Ohio, 2011: U.S. Geological Survey Open-File Report 2012–1222, 8 p., available only at http://pubs.usgs.gov/of/2012/1222.


Contents

Abstract

Introduction

Methods

Escherichia coli and MST Markers in Lake-Water Samples

References Cited


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