The US Geological Survey's Branch of Quality Systems (BQS) operates seven blind sample quality assurance projects or programs to benefit the Water Science Centers,
the laboratories used by USGS, and to assure USGS analytical data quality.
USGS data users will find helpful charts and tables summarizing laboratory performance over time for different laboratory types and for USGS field technicians
and volunteers collecting water samples.
U.S.
Department of the Interior | U.S. Geological Survey
URL: bqs.usgs.gov
Page Contact Information: George Ritz
Page Last Modified:
February 12, 2016 1:27 PM
