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Update now online to the Turbidity section of the National Field Manual for the Collection of Water-Quality Data.
The National Field Manual is on CD: The CD contains the September 2003 version of the National Field Manual for the Collection of Water-Quality Data. For additional information, e-mail your inquiry to nfm-owq@usgs.gov.
General information on microbial source-tracking and detection techniques
Ever popular Water hardness map and chart from 1975 are on-line, with an explanation of hardness.
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U.S. Department of the Interior, U.S. Geological Survey
Maintainer: Office of Water Quality Last update: 11:08:30 Mon 04 Oct 2004 Privacy Statement || Disclaimer || Accessibility URL: http://water.usgs.gov/owq/news.html |
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