PROGRAMS AND PLANS--Central Laboratories Quality-Assurance Report

In Reply Refer To:                     September 23, 1982
EGS-Mail Stop 412



QUALITY OF WATER BRANCH TECHNICAL MEMORANDUM NO. 82.19

Subject: PROGRAMS AND PLANS--Central Laboratories Quality-
                             Assurance Report

A Quality-Assurance Report for the Central Laboratories--
Atlanta and Denver--for the period October 1 through December 
31, 1981, is attached. This report covers quality-assurance 
samples which were submitted daily to the laboratories 
through a program which is independent of the management of 
the Central Laboratories System.  The report does not cover 
the quality-control samples within the laboratory sections or 
the quality-assurance samples submitted by each Laboratory 
Chief to his laboratory.

Because this quality-assurance program examines data after it 
has undergone routine Central Laboratory quality control 
checks and has been stored in WATSTORE, the report should 
reflect the quality of the analyses received by the data 
user. Special attention should be directed to the "Discussion 
and Recommendations" section of this report. This section 
provides qualifications necessary for interpreting the 
information provided in tabular and graphic form.

A Quality-Assurance Report for the period January 1 through 
June 30, 1982, is in preparation. Quality-assurance reports 
covering previous time periods are on file in the Quality of 
Water Branch.



                                 R. J. Pickering

Attachment

Copy to: Chief, Atlanta Central Laboratory
         Chief, Denver Central Laboratory

WRD Distribution: A, FOL

Key Words: water quality, quality assurance, laboratories

This memorandum does not supersede any previous memorandum