Document 1Q0q3EGrVKwKnB3n6pmY0LGYX

^ 2.24- KoZQ CC: R. J. Burger 0. M. Cordrey D. A. Erdman T. L. Schrenk Paul Thistleton August 6, 1982 TO: FROM: J. G. L0SCHIAV0 R. J. ZIPFEL fa RETENTION OF C-8 IN EMPLOYEES' BLOOD Ref: Your letter, same subject, of 7/29/82. Your program to achieve a C-8 material balance for TEFLON employees was reviewed by J. M. Cordrey, D. A. Erdman, T. L. Schrenk, and myself. We concluded that your program would not be pursued at this time in light of our recent findings on C-8 embryotoxicity and a significant trend downward in TEFLON employees' C-8 blood levels. However, we do support your first three items on additional C-8 blood sampling for male employees leaving TEFLON and on new TEFLON employees. Erdman and Schrenk stated that what they required today was a more detailed epidemiological study on humans to determine the safe level of C-8 in an employees blood. Once this point is determined your program will again be considered, if necessary. I will pursue this latter need with R. J. Burger in the near future. RJZ/nsw 0904W AJP001262 000254 EID080662