Water Resources--Office of Water Quality

CHAPTER A6.
FIELD MEASUREMENTS

Abstract

The National Field Manual for the Collection of Water-Quality Data provides protocols, standard procedures, and guidance for U.S. Geological Survey (USGS) personnel who collect data used to assess the quality of the Nation's surface-water and ground-water resources. Chapter A6 presents general information and guidelines for performing field measurements (section 6.0) and specific requirements and guidance for collecting data for water temperature (section 6.1), dissolved oxygen concentrations (section 6.2), specific electrical conductance (section 6.3), pH (section 6.4), reduction-oxidation potential (section 6.5), alkalinity (section 6.6), turbidity (section 6.7), and use of multiparameter instruments (section 6.8). Each of these sections is revised periodically and published separately on this Web site.

Contents

Cover pages, Table of Contents,
Abstract and Introduction (120 kb pdf)

6.0

General information and guidelines (8/2005)
F.D. Wilde and D.B. Radtke

6.1

Temperature (3/2006)
Revised by F.D. Wilde

6.2

Dissolved oxygen (5/2006)
Revised by M.E. Lewis

6.3

Specific electrical conductance (8/2005)
D.B. Radtke, J.V. Davis, and F.D. Wilde

6.4

pH (1/2006)
F.D. Wilde, Eurybiades Busenberg, and D.B. Radtke

6.5

Reduction-oxidation potential (electrode method) (9/2005)
D.K. Nordstrom and F.D. Wilde

6.6

Alkalinity and acid neutralizing capacity (7/2006)
Revised by S.A. Rounds

6.7

Turbidity (9/2005)
Chauncey W. Anderson

6.8

Use of multiparameter instruments for routine field measurements (8/2007)
Jacob Gibs, Franceska D. Wilde, and Heather A. Heckathorn

Conversion factors, selected terms and symbols, chemical symbols and formulas, and other abbreviations

Selected references, selected documents, and publications on Techniques of Water- Resources Investigations

Archival files: Cover, Table of Contents, Abstract, Introduction (582 KB pdf)

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Maintainer: Office of Water Quality
Last Modified: Feb. 11, 2008
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