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CEOCHRON LABORATORIES adivisianol <br />KRUEGER ENTERPRISES, INC. <br />711 CONCORD AVENUE • CAMBRIDGE, MASSACHUSETTS 02138 • U S. A <br />TELEPHONE 1617) 8763691 TELEFAX~ (617) 661-0148 <br />• <br />• <br />RADIOCARBON AGE DETERMINATION <br />REPORT OF ANALYTICAL WORK <br />Our Sample No. GX-22905 <br />Date Received: <br />02/26/97 <br />Your Reference: letter of 02/23/97 <br />Submitted by: ?1r. :Celly Payne <br />11ayo & Associates <br />710 East 100 ~Jorth <br />Lindon, Utah 84042 <br />Sample Name: B South plains E1 XC5 1/2 <br />groundwater precipitate <br />Date Reported: <br />03/14/97 <br />AGE = Greater titan 37,000 C-14 years BP (C-13 corrected). <br />Less titan i.00 % of the modern (1950) C-14 activity. <br />Description: Sample of groundwater precipitate. <br />Pretreatment: The barium salt precipitate was rapidly vacuum filtered <br />and irn:nediately hydrolyzed, under vacuum to recover <br />carbon dioxide from the barium carbonates for the <br />analysis. C-13 analysis was made on a small portion <br />of the same evolved gas. <br />Comment: <br />3"CPOe = - 1 .3 ~ <br />------------------------------------------- <br />Notes: This date is based upon the Libby half life (5570 years) for "C. The error stated is t1o 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 />