Document JNpNjQDed0kJZgoGYDQRL89v2

PLAINTIFF'S EXHIBIT CHR-14 2___ CHEMICAL DIVISION CHRYSLER V/\y CORPORATION August 16, 1965 Wayne County Department of Health Eloise, Michigan Attention: Marvin M. Schuman Gentlemen: This is to acknowledge receipt of your memo to S. B. Twiss dated July 2, 1965, relative to our handling asbestos and toluene. This belated acknowledgment does not signify lack of interest in the problem, but is caused in part by vacation schedules and changes in our physical organization. We are unhappy to hear that your survey showed a toluene concentra tion higher than your recommended limits going from the boxes into the extruder hoppers. We are reviewing this situation to determine the best method of alleviating the problem. We have at least two choices; increasing the air velocity over the boxes; or using a mechanical method for unloading. It is anticipated that our fact finding will be completed shortly, and a determination made of the best corrective method. We appreciate your interest in this matter and look forward to your next visit at which time we hope to have the problem solved. Yours truly, CHRYSLER CORPORATION CHEMICAL DIVISION VI?. . '"t .'*1. 5 EJS:jg cc: S. B. Twiss D. L. Eschelbach E/^rJ. Sydor Manufacturing Operations General Manager HJ/ W JEFFERSON. THE MON. MICHIGAN MICHIGAN DEPARTMENT OF HEALTH AtM*T L HfvSTlV MO. %*-- ktNUM. MiCNt*M |u TtLlPMONt UMtM .. tiaaft JT*n or MIO<iCA GCOftCC MOMHCY July 2, 1965 Reply to: Wayne County Department of Health Slolse, Michigan Chrysler Corporation Chrysler Chealcal Division 9**37 V. Jefferson Trenton, Michigan Attention: S. B. Twlss, Ph.D., President --- Gentlemen: On May 19, 1969, ve conducted a study of the various operations haru<nng asbestos end. toluene to determine whether your employees vers being exposed to concentrations above our Units. Air samples were collected in the breathing tone of the workers loading raw asbestos into the sixers and after various raeMning operations. In general the dust found In tbs samples was below ^ the established Halt. One of the saoples collected at So. 3 ' 1 Saw was slightly above the Halt Indicating that the ventilation and hooding should be checked to see If It Is operating at mi. --^efficiency. Solvent samples were collected In the breathing tone of the vorkers during the emptying of the mixer and the loading of the portable boxes, the shoveling of the mix into the extrusion press and stacking the extruded linings on the drying racks. The air samples collected indicated high concentrations during the emptying of the mixer and the shoveling of the mixed material from the portable box Into the extruder. The concentration is the mix room was of short duration and did not appear significant compared to the tlae __ or exposure and the background concentration of 10 to 20 parts per million. However tbs shoveling of material occurs over a longer period of time and Is a problem. The average concentration during 1 tne shoveling operation Is 290 parts per million with the peas concentration exceeding this figure. Tne ventilation on the box vas cnecaed and round to be approximately YOO cubic reet 01 air per su.aute, very low according to our standards xor good ventilation. RECEIVED JUL 22 1965 S. B. TWlSS r.u.c.\:rbM_piw Carytisr Corporation Chrysler Cteaic-aj. Division J-uy 2, i9o5 Page 2 Sou* t/pe oi corrective aeuttm be initiated at tu anovallia* of brake Unlag materiel into the extruder hopper--one, either change the oethod of loading the extruder to reduce the reployee exposure or tvo, increase the exhaust ventilation to 1750 cubic feet of air per minute per box. We are enclosing the data collected during our study and If there are any questions before our next visit please feel free to contact Very truly yours, DIVISION 07 QCCUPATXOKAL EXALTE MHS/Je Enclosure Marvin M. flchuman District Engineer cc: Donald Eachelbach, Industrial Hygienist#