PROGRAMS AND PLANS--Central Laboratories Quality Assurance Report 

In Reply Refer To:                         January 27, 1983
EGS-Mail Stop 412

QUALITY OF WATER BRANCH TECHNICAL MEMORANDUM NO. 83.05

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

A Quality Assurance Report for the Central Laboratories--
Atlanta and Denver--for the period January 1 through June 30, 
1982, is attached. A replacement for pages 3 and 4 is 
included to correct an error noted after printing. The 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 July 1 through 
December 31, 1982, is in preparation. Quality Assurance 
Reports covering previous time periods are on file in the 
Quality of Water Branch.



                         R. J. Pickering      
                         Chief, Quality of Water Branch

2 Attachments

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