Water Resources--Office of Water Quality
CHAPTER A7.
BIOLOGICAL INDICATORS
Sections of Chapter A7:
- Cover pages (122 KB pdf)
- Abstract/Introductory sections
(59.5 KB pdf)
- 7.0
- Five-day biochemical oxygen demand
- 7.1
- Fecal indicator bacteria, ver. 2.0, 2/2007
- 7.2
- Fecal indicator viruses
- 7.3
- Protozoan pathogens
- 7.4
- Algal biomass indicators
- Conversion factors, References, and Appendix
(1.21 MB pdf)
Citation Information:
U.S. Geological Survey, variously dated, Biological indicators: U.S. Geological Survey Techniques of
Water-Resources Investigations, book 9, chap. A7, accessed __list date__, from
http://pubs.water.usgs.gov/twri9A/.
Any use of trade, product, or firm names is for descriptive purposes only
and does not imply endorsement by the U.S.
Government.
Return to
Field Manual Complete Contents
Return to Water
Quality Information Pages
Archives
Section 7.1, ver. 1.2, dated 11/2004
Section 7.1, ver. 1.1, dated 9/2004
Section 7.1, dated 11/2003
Chapter A7, 2nd edition, dated 3/03
Chapter A7, includes updates through 9/99
Submit a question or comment related to this National Field Manual.
Maintainer: Office of Water Quality
Last Modified: 28 Dec. 07 imc
Privacy Statement ||
Disclaimer ||
Accessibility
URL: http://water.usgs.gov/owq/FieldManual/Chapter7/index.html