Quality-control design for surface-water sampling in the National Water-Quality Network

Open-File Report 2018-1018
National Water-Quality Program
By: , and 

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Abstract

The data-quality objectives for samples collected at surface-water sites in the National Water-Quality Network include estimating the extent to which contamination, matrix effects, and measurement variability affect interpretation of environmental conditions. Quality-control samples provide insight into how well the samples collected at surface-water sites represent the true environmental conditions. Quality-control samples used in this program include field blanks, replicates, and field matrix spikes. This report describes the design for collection of these quality-control samples and the data management needed to properly identify these samples in the U.S. Geological Survey’s national database.

Suggested Citation

Riskin, M.L., Reutter, D.C., Martin, J.D., and Mueller, D.K., 2018, Quality-control design for surface-water sampling in the National Water-Quality Network: U.S. Geological Survey Open-File Report 2018–1018, 15 p., https://doi.org/10.3133/ofr20181018.

ISSN: 2331-1258 (online)

Table of Contents

  • Foreword
  • Abstract
  • Introduction
  • Types of Quality-Control Samples
  • Collection and Processing of Quality-Control Samples
  • Frequency, Timing, and Location of Quality-Control Sample Collection
  • Sample Coding for Data Management
  • Review of Quality-Control Analytical Data
  • Acknowledgments
  • References Cited
  • Appendix. Analytical Services Request Forms and National Water Information System Database Coding Commonly Required for Quality-Control Samples and Associated Environmental Samples Collected as Part of the National Water-Quality Network 

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Quality-control design for surface-water sampling in the National Water-Quality Network
Series title Open-File Report
Series number 2018-1018
DOI 10.3133/ofr20181018
Year Published 2018
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) New Jersey Water Science Center
Description vi, 15 p.
Online Only (Y/N) Y
Additional Online Files (Y/N) N