8226

• UCREFRP Catalog Number: 8226
• Author: Shelton, L. R.
• Title: Field Guide for Collecting and Processing Stream-Water Samples for the National Water-Quality Assessment Program.
• USFW Year: 1994.
• USFW - Doc Type: 94-445,
• Copyright Material: NO

Field analyses--Continued
Alkalinity, bicarbonate, and carbonate 31
Fixed end-point method 31
Incremental method 31
Dissolved oxygen 33
Probe maintenance 33
Calibration 34
Barometer calibration 34
Air-calibration chamber in water 34
Air-saturated water 36
Measurement 37
Documentation 37
Quality assurance and quality control 39
Field blanks 39
Replicates 39
Field-matrix spikes 39
References cited 40
Appendix A. Selected technical memorandums 41
Appendix B. Selected internal communications 42

FIGURES

1. Suggested water-quality samplers for various stream regimes 15
2. Example of form for recording surface-water quality field notes 38

TABLES

1. Analytical strategy for Basic Fixed Sites 4
2. Analytical strategy for Intensive Fixed Sites in addition to Basic Fixed Site analyses 5
3. List of equipment and supplies for sampling and processing stream-water samples 7
4. Solubility of dissolved oxygen in water at various temperatures and pressures 35

IV Contents