Water Resources--Office of Water Quality

National Field Manual For the Collection of Water-Quality Data

CHAPTER A8.
BOTTOM-MATERIAL SAMPLES

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• Errata for Chapter 8
• Citation Information
• Standard USGS procedures for collecting suspended sediment and bedload data can be accessed at http://pubs.usgs.gov/twri/twri3-c2

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Table of Contents

Abstract

Chapter A8 provides guidelines for the equipment and procedures needed to collect and process samples of bottom material for the evaluation of surface-water quality.

Introduction

Purpose and scope
Field manual review and revision
Acknowledgments

A8. Bottom-material samples

8.1 - Field trip preparations

8.2 - Site selection


8.2.1 - Location of sampling sites

8.2.2 - Number of sampling sites

8.3 - Sampling equipment

8.3.1 - Equipment selection

8.3.1.A - Samplers

8.3.1.B - Sieves

8.3.2 - Decontamination

8.4 - Sample collection

8.4.1 - Sampling procedures

8.4.2 - Quality-control procedures and requirements

8.4.2.A - Split samples

8.4.2.B - Concurrent replicate samples

8.5 - Sample processing

8.5.1 - Compositing and subsampling

8.5.2 - Sieving and sample handling

8.6 - Sample packaging and shipping

8.6.1 - Sample identification and packaging

8.6.2 - Shipping containers and sample shipment

8.6.3 - Analytical services request form

8.7 - Checklist of field equipment and supplies

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