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GEOCHRON LABORATORIES adivision of <br />KRUEGER ENTERPRISES, INC. <br />711 CONCORD AVENUE • CAMBRIDGE, MASSACHUSETTS 02138 • U S A <br />TELEPHONE: (617) 8763691 TELEFAX: (617) 6610148 <br />• <br />RADIOCARBON AGE DETERMINATION <br />REPORT OF ANALYTICAL WORK <br />Our Sample No. G;{_22907 <br />Date Received: <br />02/26/97 <br />Your Reference: letter of 02/23/97 <br />Submitted by: P1r. :Celly Payne <br />Pia yo ~ Associates <br />710 East 100 Forth <br />Lindon, Utah 34042 <br />Date Reported: <br />03/14/97 <br />Sample Name: 1 tJETG E2 :{C 1 3 <br />groundwater precipitate <br />AGE = Greater than 36,190 C-14 years BP (C-13 corrected). <br />Less than 1.11 9~ of the modern (1950) C-14 activity. <br />Description: Sample of groundwater precipitate. <br />Pretreatment: The oarium salt precipitate was rapidly vacuum filtered <br />and immediately hydrolyzed, under vacuum to recover <br />carbon dioxide from the bariula carbonates for the <br />analysis. C-13 analysis was made on a small portion <br />of the same evolved gas. <br />Comment: <br />------------------------------------------- <br />Noies: This date is based upon the Libby half life (5570 years) for "C. The error stated is f to as judged <br />by the analytical data alone. Our modern standard is 95% of the activity of N.B.S. Oxalic Acid. <br />The age is referenced to the year A.D. 1950. <br />