Document npzBZqkBJE8jxLYb8z3o4woOa

ENVIRONMENTAL PROTECTION AGENCY . Office of Air Programs Research Triangle Park, North Carolina 27711 MVch 10, 1972 s . Mr. E. H. Schaper ' Vice President - Operations Kaiser Gypsum Company, Inc. Kaiser Center - 300 Lakeside Drive Oakland, California 94604 Dear Mr. Schaper: Thank you for your comments on our "Proposed National Emission Standards For Hazardous Air Pollutants: Asbestos, Beryllium, Mercury." We will review your comments and consider them, along v/ith all other comments, prior to promulgating the regulations this summer. Sincerely yours Don R. Goodwin, Director Standards Development and Implementation Division Stationary Source Pollution Control Programs