Document EdOMz45zaR7DqgJm8x56QeJxL

AR226-1385 Aft 6 _ / g X CC: ERD Division Directors F. W. Rappaport - N-13519 J. C. Bonnett, M.D. B. w. Karrh, M.D. TO: H. G. SMYTH FROM: BURFORD W. CULPEPPER, M.D April 28, 1981 WEEKLY NOTES C-8 (FC-143) C-8 (FC-143) blood level testing continues with exposed employees and controls recruited from the Corporate headquarters. 13 controls tested thus far have had non-detec table levels of C-8; i.e.,< 0.004 ppm. Haskell has initiated an animal study this week that may help deter mine a "no-effect" level in rats. Results will not be available for 60 days. In the interim, our standard of 0.-0.4 ppm total organic fluorides will continue to be used as a blood level that will not mandate removal of females from the workplace. BWCrceb EID096481 000153 BWK000121