Chapter A4. Collection of Water Samples

Techniques of Water-Resources Investigations 09-A4



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 that are used to assess the quality of the Nation's surface-water and ground-water resources. This chapter addresses preparations and appropriate methods for the collection of surface-water, groundwater, and associated quality-control samples. Among the topics covered are considerations and procedures to prevent sample contamination; establishing site files; instructions for collecting depth-integrated isokinetic and nonisokinetic samples at flowing- and still-water sites; and guidelines for collecting formation water from wells having various types of construction and hydraulic and aquifer characteristics. Each chapter of the National Field Manual is published separately and revised periodically. Newly published and revised chapters will be announced on the USGS Home Page on the World Wide Web under 'New Publications of the U.S. Geological Survey.'

Table of Contents

  • Abstract
  • Introduction
  • A4. Collection of Water Samples
  • Conversion factors, selected terms, and abbreviations
  • Selected references and documents
  • Appendix A4-A. Transit rate and volume guidelines and filling times for isokinetic samplers
  • Appendix A4-B. Instructions related to measuring water levels at wells and a sample USGS ground-water-quality field form
  • A4B-1. Establishing a permanent measuring point on wells at which water level will be measured
  • A4-B-2. Well-depth measurement
  • A4-B-3. Water-level measurement by: Steel Tape and Electrical Tape
  • A4-B-4. Water-level measurement by the air-line method
  • A4-B-5. Water-level measurement at flowing wells using ow-pressure and high-pressure methods
  • A4-B-6. Sample of the U.S. Geological Survey Ground-Water Quality Notes field form
  • Appendix A4-C. Quality-control samples collected by field personnel for water-quality studies
  • Appendix A4-D. Examples from the National Water-Quality Assessment Program related to protocols for collecting
Publication type Report
Publication Subtype USGS Numbered Series
Title Chapter A4. Collection of water samples
Series title Techniques of Water-Resources Investigations
Series number 09-A4
DOI 10.3133/twri09A4
Edition Version 2.0, Revised September 2006 (original version published September 1999)
Year Published 2006
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) U.S. Geological Survey
Description 166 p.
Larger Work Type Report
Larger Work Subtype USGS Numbered Series
Larger Work Title National Field Manual for the Collection of Water-Quality Data. U.S. Geological Survey Techniques of Water-Resources Investigations, Book 9
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