Water-Quality Information -- Field Methods/Techniques

Instant Unit Conversions (interactive conversions, made available by the Institute of Chemistry, Freie Universitaet, Berlin, Germany).

Microbial detection and source-tracking methods

Continuous Water-Quality Monitors

An Alkalinity Calculator is online, and Alkalinity Calculation Methods. See also Alkalinity and Acid Neutralizing Capacity, section 6.6 of the National Field Manual.

DOTABLES - dissolved oxygen saturation tables

USGS Chapters of the National Field Manual for the Collection of Water-Quality Data

Ground-Water Information -- Techniques

U.S. Department of the Interior, U.S. Geological Survey Maintainer: Office of Water Quality Last update: 13:45:38 Thu 10 Jun 2004 Privacy Statement || Disclaimer || Accessibility URL: http://water.usgs.gov/owq/methods.html