Quality Assurance Data for the Central Laboratories 

In Reply Refer To:                           March 22, 1984
WGS-Mail Stop 412



QUALITY OF WATER BRANCH TECHNICAL MEMORANDUM NO. 84.10 

Subject:  Quality Assurance Data for the Central Laboratories 

The attached report, "Quality-Assurance Data for Routine 
Water Analysis in the Laboratories of the U.S. Geological 
Survey for Water-Year 1982," is part of a series of reports 
summarizing the results of the external quality-assurance 
program of the Central Laboratories.  The next report, 
covering 1983 data, will be available in the near future. 

Requests for additional copies of the report and comments on 
its improvement should be forwarded to the Chief, Quality of 
Water Branch. 



                            R. J. Pickering 
                            Chief, Quality of Water.Branch 

Attachment:  WRI 83-4264 

WRD Distribution: A, B, FO 

Key Words:  water quality, quality assurance, laboratories 

This memorandum does not supersede any previous memorandum.