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Concentrations of bacteria in storm water runoff

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Type: Resource
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Created: Jul 24, 2017 at 4:56 a.m.
Last updated: Sep 21, 2017 at 3:21 a.m.
DOI: 10.4211/hs.9384607f8eb349d681061ec485380879
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Sharing Status: Published
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The introduction of pollutants into storm water runoff can be concerning since it can act as a vector for environmental pollution or even household contamination. This study will assess the microbial contamination of storm water runoff from various sources including a metal roof, a photocell, and dry wells collecting roof and parking lot runoff on the USU campus. The microbes being tested for are total coliforms, E. coli, and enterococcus. ISCO auto samplers and grab samples were used to gather storm water samples. Simulations were ran using off-gassed tap water on the metal roof a photovoltaic cell. The concentrations of the three microbes in the samples were determined using the IDEXX Quanti-tray 2000 system. It was found that samples taken from the dry wells had greater concentrations of total coliform and E. coli than surface samples. It was also found that the metal roof on the pump house had greater concentrations of all three indicator bacteria than the photovoltaic cell atop the roof.

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Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
Utah State University
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Funding Agencies

This resource was created using funding from the following sources:
Agency Name Award Title Award Number
iUTAH-innovative Urban Transitions and Aridregion Hydro-sustainability
National Science Foundation 1208732

How to Cite

Beyer, C., R. R. Dupont (2017). Concentrations of bacteria in storm water runoff, HydroShare,

This resource is shared under the Creative Commons Attribution CC BY.


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