Central Laboratories Quality Assurance Report In Reply Refer To: July 23,1985 WGS-Mail Stop 412 QUALITY OF WATER BRANCH TECHNICAL MEMORANDUM NO. 85.16 Subject: PROGRAMS AND PLANS--Central Laboratories Quality Assurance Report A quality-assurance report for the Central Laboratories-- Atlanta and Denver for the period July 1 through September 30, 1984, is attached. 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. This quality- assurance program examines data after it has undergone routine 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 text of this report which provides the description of procedures, qualifications, and interpretation of the information presented in tabular and graphic form. Quality-assurance reports for the last quarter of 1984 and the 1984 annual summary are in preparation. Quality- assurance reports covering previous time periods are on file in the Quality of Water Branch. David A. Rickert Acting Chief, Quality of Water Branch Attachment WRD Distribution, A, FOL Key Words: water quality, quality assurance, laboratories This memorandum does not supersede any previous memorandum.