USGS - science for a changing world

 The Branch of Quality Systems (BQS)

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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.

Loch Vale Sampling Site, Colorado

 NEWS and UPCOMING EVENTS

February 2015
[NFQA]   NFQA to send out samples to the field offices in March 2015

December 2014
[IBSP and OBSP]   New data-quality assessment summaries for NWQL performance on Inorganic and Organic blind samples are now available!

December 2014
[SRS]   Invitation to participate in the Spring 2015 study sent out.     <SRS Home Page>

October 2014
[IBSP]   New website launched!     Up to seven different charts available for viewing the results from inorganic blind-samples submitted to the NWQL.         Check it out! <IBSP Charts>


BQS News

OTHER LINKS        BQS Contacts Publications NADP NWQL OWQ

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URL: bqs.usgs.gov
Page Contact Information: Brooke Connor
Page Last Modified: February 13, 2015 7:48 AM