Document wb3KRnp6oNk13gKR1RkLonKJ

C. R. Lynhaa r* rO'iSON.NEL D. L. Asians September 14, 1977 1 have read your memo of September 9 which alerts us all to the possibility, if not probability, that certain mineral fibers will become implicated in health hazard problems. 1 applaud the fact that you are moving toward an examination of alternatives well in advance of any new regulations. Please keep me informed as to the results of Mr. Cook's and Mr. Hardy's work on this subject. Thanks. DLAAf cc: 0. B. Woodbury-(w/attachaeat). - 's