National Field Quality Assurance Project

The National Field Quality Assurance (NFQA) project was created in 1979 to provide quality-assurance reference samples to field personnel who make water quality field measurements. The project monitors the proficiency of alkalinity, pH, and specific conductance measurements determined by water quality field analysts.

Nationwide, hundreds of field measurements are made daily by USGS field-analysts. The data reported by the NFQA project provides a confidence level to these field measurements by testing the proficiency of the instruments and the field-analyst to measure prepared test samples. The proficiency data obtained through the NFQA should be reflected in the data collected by the field-analyst on a daily basis. The data produced by the NFQA project also documents the precision of the method for alkalinity, pH, and specific conductance.

Message of the Day


Sample ordering is now open for WY23!

New participants must be entered in the database before contacting RoseAnn Martin for Participant ID.
Please email ramartin@usgs.gov with any questions.
Sample ordering ends Wednesday, November 16, 2022 at 4 PM Mountain Time. No late orders will be accepted.

Thanks, RoseAnn Martin


Internal users can login HERE


Online Resources
 
Need more information about the National Field Quality Assurance project?
Contact the Branch of Quality Systems via E-mail or call RoseAnn Martin at 303-236-1874



LINKS

  National Atmospheric Deposition Program National Water Quality Laboratory USGS Precipitation Chemistry Page
   

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