_REVISION - M1977208 ‎(3)‎

• Permit No: M1977208
• IBM Index Class Name: Revision
• Doc Name: RESULTS OF SOUTHDOWN INC LYONS PLANT INVESTIGATION INTO ON SITE STORAGE OF CEMENT KILN DUST
• Type & Sequence: TR1
• Media Type: D
• Archive: No

BARRINGL'R LABORATORIES, INC. 2 8 -Apr- 9 9
Page: Q-8
15000 W. 6TH AVE., SUITE 300 GOLDEN, CO 60401 [phone] FA% [phone] Job : 9 918 21 E
Status: Final
Banks and Gesso LLC
QUALITY CONTROL REPORT
Gross Alpha Gross Beta
SPLP SPLP
Sample Id pCi/1 + 26 pCi/1 + 20
Duplicate 80 ±22 17 ±15
Duplicate 52 ±19 24 ±15
RER 0.59 0.23
Std (found value) 83 ±4 91 ±2
Std (true value) 78 87
Std °s rec. 106 105
Blank 0.0 ±0.2 0.0 ±0.4
Spike % rec. 81 83
Meeting The Analytical Challenges Of A Chmrging World Sittce 1961