USGS Water-Quality Information
USGS personnel collect a water-quality sample on the Missouri River. USGS/Photo by Kelly Brady.
Water Quality Data
National Water Information System (NWIS)
NWIS provides current and historical water-quality data.
Today's Water Conditions
Water-Quality Watch provides continuous real-time water-quality measurements.
Water-Quality Web Services
Web services automate the sharing of USGS and USEPA water-quality monitoring data.
For More Data
Additional water-quality data resources are available.
USGS in Your Area
USGS Water Science Centers are located in each state.
6.8 Use of multiparameter instruments for routine field measurements
By Jacob Gibs, Franceska D. Wilde, and Heather A. Heckathorn
This section of Chapter 6 is available as a pdf file:
Download a copy of Adobe Acrobat Reader for free.
The miniaturization of sensors and other technological advances in electronics have resulted in water-quality instruments that house multiple sensors capable of simultaneous readings for various field measurements in environmental waters. This section addresses the short-term or discrete-measurement use of portable multiparameter instruments.
6.8 Use of Multiparameter Instruments for Routine Field Measurements
6.8.1 - Equipment and supplies
6.8.2 - Calibration
6.8.3 - Measurement
6.8.4 - Troubleshooting
6.8.5 - Reporting
6.8.6 - Selected references
6.8.7 - Acknowledgments
Appendix 6.8-A - Example of a USGS field form for recording sensor calibrations and field measurements
Citation for Section 6.8:
Gibs, Jacob, Wilde, F.D., and Heckathorn, H.A., 2007, Use of multiparameter instruments for routine field measurements (ver. 1.1): U.S. Geological Survey Techniques of Water-Resources Investigations, book 9, chap. A6, section 6.8, August, accessed__date__ from http://pubs.water.usgs.gov/twri9A/.