Document Rpp71YoojpZr1xXkQ0dZO4zyX

PLAINTIFFS EXHIBIT 3nO:0 Pittsburgh Corning Corporation P.O. Box 3067 Tyler, Texas 7S701 December 27, 1971 l. 8* Grant, H, 0. Medical Director PPG Industries Ohe Gatewat Center Pittsburgh, Pa. 15222 \ r\J Dear Lee: Have just received, this date, the ehcloseo report from Or. Craft and Dr. Johnson so thought He send you a copy or same. In reference to the "Health Ha2aros" listed ok pace 11, l ah ITEMIZING HY COMMENTS AS FOLLOWS! 1. The lunch aooh ts about 501 to 60* from the Forming Dept. According to their air sample counts, the Finishing Dept. is the GUSTIEST AREA, AHS THE LUNCH ROOM IS ABOUT 200' FROM THE FINISHING Dept. 2. Ho COMMENT ,( 5* Masks are worn in the Feeding Dept. ~ I never heard or any PROBLEMS WITH OIATOMACSOUS EARTH. t*. All scrap piles on our property have been buried <h pits ako COVERED WITH 3 TO A FEET OF EARTH. 5. "MAT PRESENT A SILICA OUST PROBLEM"?? 8.S. Additional comments 1. The six oil field heaters have beck in operation in this PLANT FOR HAHYTEARS. SINCE THERE IS ALWAYS ROOF AIR CIRCULATION ANO VENTILATION, US HAVE NEVER EXPERIENCED ANY DIFFICULT<E$, HOWEVER, - IT tS A VERY SIMPLE MATTER TO ELIMINATEYTHEM COMPLETELY. 2. OUR EMPLOYEES USE THESE AIR OUTLETS OUTSIOE OF THE PLANT buildings - Safety glasses ano respirators are always-worn when SLOWINC OFF. HIGHLY CONFto*" " Johnson has ever worked - anywhere? SUBJECT TO PROTECTIVE ORDER Very truly tours, TfC0005S30 CEvHjom ( PITTSBURGH C O BN IN WV-10995 HIGHLY CONFIDENTIAL SUBJECT TO PROTECTIVE ORDER "ft. 0005931