USGS - science for a changing world

National Water Quality Laboratory

Saturday March 17, 2018

USGS Open-File Report 92-495

Quality Assurance/Quality Control Manual

Jeffrey W. Pritt and Jon W. Raese


Quality control practices are established for the operation of the U.S. Geological Survey’s National Water Quality Laboratory. These practices specify how samples are preserved, shipped, and analyzed in the Laboratory. This manual documents the practices that are currently (1992) used in the Laboratory.

VIEW the report. (pdf)


Accessibility FOIA Privacy Policies and Notices

U.S. Department of the Interior | U.S. Geological Survey
Page Contact Information: NWQL LabHelp
Page Last Modified: Wednesday, 03-May-2017 08:34:31 MDT