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![]() National Field Manual for the Collection of Water-Quality Data (TWRI Book 9)Chapter A7. Biological Indicators
Sections of Chapter A7:Cover, contents, and introduction (90KB PDF) 7.0 Five-day biochemical oxygen demand 7.1 Fecal indicator bacteria, ver. 2.0, 2/2007 Conversion factors, References, and Appendix (1.2MB PDF) [Note: References for sections 7.4 and 7.5 are included in those sections, not in this final section.]
Citation InformationU.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/. DisclaimerAny use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. For more information, see USGS Information Policies. For more informationSubmit a question or comment related to this National Field Manual. For general water-quality questions, contact the USGS Office of Water Quality. Chapter A7 Archives |