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 [Photo: USGS scientists collect water-quality samples.]

USGS personnel collect a water-quality sample on the Missouri River. USGS/Photo by Kelly Brady.


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Water Quality Data

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National Field Manual for the Collection of Water-Quality Data (TWRI Book 9)

Chapter A2. Selection of Equipment for Water Sampling (Version 2.0, March 2003) [5.7 MB PDF]

Revised by Susan L. Lane, Sarah Flanagan, and Franceska D. Wilde

Chapter A2, Version 2.0: To print this file, select Print from the File Menu, and select Document and Markups under the Comments and Forms Heading.) Information in the Comment boxes will be displayed when the file is printed.

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The National Field Manual for the Collection of Water-Quality Data (National Field Manual) describes protocols and provides guidelines 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. This chapter of the manual addresses the selection of equipment commonly used by USGS personnel to collect and process water-quality samples.

Sections of Chapter A2:



Purpose and scope

Requirements and recommendations

Field manual review and revision


2.0. Chemical compatibility with the water sample

2.0.1. Equipment materials

2.0.2. Disposable gloves

2.0.3. Blank water and chemical reagents

2.1. Sample collection

2.1.1. Surface-water equipment

2.1.1.A. Isokinetic depth-integrating samplers

Hand-held samplers

Cable-and-reel samplers

2.1.1.B. Nonisokinetic samplers

Open-mouth samplers

Thief samplers

Single-stage samplers

Automatic samplers and pumps

2.1.1.C. Support equipment

2.1.2. Ground-water equipment

2.1.2.A. Pumps

Supply-well pumps

Monitoring-well pumps

Well-development pumps

2.1.2.B. Bailers, thief samplers, and passive diffusion bag samplers

Bailers and thief samplers

Passive diffusion bag samplers

2.1.2.C. Support equipment

2.2. Sample processing

2.2.1. Sample splitters

2.2.1.A. Churn splitter

2.2.1.B. Cone splitter

2.2.2. Processing and preservation chambers

2.2.3. Filtration systems

2.2.3.A. Inorganic constituents

Disposable capsule filter

Plate-filter assemblies

2.2.3.B. Organic compounds

Metering pump

Filtration assemblies

Filter material

2.2.4. Pump tubing

2.3. Field vehicles

2.4. Lists of equipment and supplies

Conversion factors, selected terms, and abbreviations

Selected references and technical memorandums

Appendix: Construction of a collapsible sample-processing/preservation chamber

 [Back] Return to Field Manual Table of Contents

For more information

Submit a question or comment related to this National Field Manual. For general water-quality questions, contact the USGS Office of Water Quality.

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