Document ommdaDBx1XE8Yw378dyjyDjog

KAISER GYPSUM COMPANY INC P. O. BOX 460 Kaiser GYPSUM PHONE 707-2670 ANTIOCH. CALIF. 94509 May 2, 1973 Robert W. Fri Acting Administrator Environmental Protection Agency Washington, D. C, 20460 Dear Sir: We have reviewed the National Emission Standards for Hazardous Air Pollutants published in the Federal Register, April 6, 1973, in regard to asbestos. We are particularly interested in spray-applied materials used as decoration and not for insulation or fireproofing, having worked closely with your staff on them. The following is our interpretation of the above standards as they pertain to these products: Spray-on operations using asbestos materials for decoration and not for insulating or fireproofing, in which the asbestos is strongly bound and would not generate particulate asbestos emissions, are not covered in this regulation and are not re stricted in asbestos content. Occupational Safety and Health Administration regulations include exposure, housekeeping and waste disposal requirements which will protect the health of those working in proximity to such spraying operations. Is this interpretation correct? Very truly yours, KAISER GYPSUM COMPANY, INC. /c/z /1 /. S. Sheahan . 'Senior Research Chemist /c bcc: G. B. Kirk r T. V. Smith KG-0053