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

Open-File Report 97-223

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Abstract

The data-quality objectives of the National Water-Quality Assessment Program include estimating the extent to which contamination, matrix effects, and measurement variability affect interpretation of chemical analyses of surface-water samples. The quality-control samples used to make these estimates include field blanks, field matrix spikes, and replicates. This report describes the design for collection of these quality-control samples in National Water-Quality Assessment Program studies and the data management needed to properly identify these samples in the U.S. Geological Survey's national data base.

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Additional publication details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Quality-control design for surface-water sampling in the National Water-Quality Assessment Program
Series title:
Open-File Report
Series number:
97-223
Year Published:
1997
Language:
English
Publisher:
U.S. Geological Survey,
Publisher location:
Denver, CO
Contributing office(s):
National Water Quality Assessment Program, Indiana Water Science Center
Description:
17 p. ;28 cm.
First page:
1
Last page:
17
Country:
United States
Online Only (Y/N):
N
Additional Online Files (Y/N):
N