HYDRO26197

• Permit No: C1980007
• IBM Index Class Name: Hydrology
• Doc Name: APPENDIX A ISOTOPE ANALYTICAL LABORATORY REPORTS
• Permit Index Doc Type: OTHER GROUND WATER
• Media Type: D
• Archive: No

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GEOCHRON LABORATORIES adiHSionol
KRUEGER ENTERPRISES, INC.
71I CONCORD AVENUE • CAMBRIDGE. MASSACHUSETTS 02(38 • U.S A
TELEPHONE: [phone] TELEFAX: (617) 6610146
RADIOCARBON AGE DETERMINATION
Our Sample No. GX-23158
Your Reference: letter of 06/10/97
Submitted by: Hs. Lisa Call
Mayo and Associates
710 East 100 North
Lindon, Utah 84042
REPORT OF ANALYTICAL WORK
Date Received:
Date Reported:
06/12/97
06/30/97
Sample Name: DH-1 Rollins SS 6/6/97
• AGE = 31,080 +4,480/-2,860 C-14 years BP (C-13 corrected).
(2.09 +/- 0.89) $ of the modern (1950) C-14 activity.
Description: Sample of groundwater precipitate.
Pretreatment: The barium salt precipitate was rapidly vacuum filtered
and immediately hydrolyzed, under vacuum to recover
carbon dioxide from the barium carbonates for the
analysis. C-13 analysis was made on a small portion
of the same evolved gas.
Comment:

Notes: This date is based upon the Libby halt life (5570 years) for "C. The error stated is tto as judged
by the analytical data alone. Our modern standard is 95% of the activity of N.B.S. Oxalic Acid.
The age is referenced to the year A.D. 1950.