Chapter A7. Section 7.1. Fecal Indicator Bacteria

Techniques of Water-Resources Investigations 09-A7.1
By:  and 



Fecal indicator bacteria are used to assess the microbiological quality of water because, although not typically disease causing, they are correlated with the presence of several waterborne disease-causing organisms. The concentration of indicator bacteria is a measure of water safety for body-contact recreation or for consumption. This report provides information on the equipment, sampling protocols, and identification, enumeration, and calculation procedures that are in standard use by U.S. Geological Survey (USGS) personnel for the collection of data on fecal indicator bacteria. Each chapter of the National Field Manual is published separately and revised periodically. Newly published and revised chapters will be announced on the USGS Home Page on the World Wide Web under 'New Publications of the U.S. Geological Survey.'

Suggested Citation

Myers, D.N., Stoeckel, D.M., Bushon, R.N., Francy, D.S., and Brady A.M.G., 2014, Chapter A7.1, Fecal Indicator Bacteria: U.S. Geological Survey Techniques of Water-Resources Investigations, book 9, chap. A7.1,

Publication type Report
Publication Subtype USGS Numbered Series
Title Chapter A7. Section 7.1. Fecal indicator bacteria
Series title Techniques of Water-Resources Investigations
Series number 09-A7.1
DOI 10.3133/twri09A7.1
Edition Version 1.2, Revised Nov 2004
Year Published 2014
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) U.S. Geological Survey
Description Documents: 73 p., 73 p., 64 p.; Related Work
Larger Work Type Report
Larger Work Subtype USGS Numbered Series
Larger Work Title National Field Manual for the Collection of Water-Quality Data. U.S. Geological Survey Techniques of Water-Resources Investigations, Book 9
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