Document wKqogybnJ4EdDmkvRmqDD6NXV

I Inter Office *0 PLAINTIFF'S EXHIBIT Personnel and Organisation Stall FD-1439 Mr. J. Wilson, Manager Sharosville Transmission Plant November 8, 1978 ec E. Klingenberg, M.D. M. Lindsey R. Sbav Subject: Employe Exposures to Airborne Asbestos An industrial hygiene study vaB performed at the Sharonville Transmission Plant to evaluate employes1 exposure to airborne asbestos. Request for and assistance during the study vas received from J. Granger, Safety Engineer. The purpose of the study vas to determine if medical monitoring of employes working with asbestos is required. Guidelines defining when medical monitoring is required were established in a letter by D. Block, M.D., Corporate Medical Director, dated May 2, 1978. The following operations were evaluated: . Assembly of Reactor Convertor . Installation of Front and Servo llimp gaskets . Handling of above described gaskets during stocking of assembly line . Unpacking of clutch discs None of the above described operations except the unpacking of the clutch discs generated any detectable levels of asbestos. During the unpacking of clutch plates, the employe exposure to airborne asbestos was found to be 0.13 fibers of asbestos per cubic centimeter of air (f/cc). This airborne concentration level is well within the permissible exposure level which was established to protect against asbestos and reduce to an acceptably low risk the development of neoplasms. Medical monitoring is another safeguard to provide for early detection of health problems. It does, however, exceed the 0.1 f/cc guideline at which medical monitoring is required. Therefore, medicel monitoring must be done on all employes performing thiB operation. The specific medical examinations required are described in the Federal Register Section 1910. paragraph (J). No detectable airborne asbestos exposures to the other employes were found and medical monitoring is not required for these employes. To eliminate the asbeBtos exposure during the unpacking of clutch discs, it is 8005 0708 . SCF-FORD-1632 PRODUCED BY FORD Hr. J. VUbod .(2) suggested that tvo avenues be investigated. Wovember 2, 197B Purchase clutch discs which do not contain asbestos. Discs of this type, not necessarily the sane party were being used at the Fairfax Transmission Plant. Purchase the discs pre-oiled, this will control dusting and ehotild greatly reduce airborne asbestos levels. This operation oust be restudied before nedioal monitoring is eliminated if this alternative is chosen. lb Attachment L. Keith Lee Industrial Hygienist Industrial Hygiene and Toxicology Department 8005 0709 PRODUCED BY FORD DATA SHEET INDUSTRIAL HYGIENE SERVICES SECTION INDUSTRIAL HYGIENE AND TOXICOLOGY DEPARTMENT EMPLOYE HEALTH SERVICES SHARQNVILLE TRANSMISSION PUNT August 21, 1978 Asbestos 8 Hour Time-Veighted Average Exposure Level 2 fibers per cubic centimeter of air Employe M. Taylor R. Stamper G. Gardner G. Jones R. Ralston RESULTS Soc. See. # 288-68-8801 281-30-2356 Operation Clutch Plate Unpacking Assembly of Reactor Convertor Airborne Asbestos Exposures f/ce 0.13** N.D.* 298-58-1534 Stocking Final Assembly Line N.D.* 275-58-7049 293-52-7849 Installation of Front Pump & Gasket Installation of Servo Pump & Gasket N.D.* N.D.* N.D. = non-detectable No aebestos fibers detected above blank of 3000 fibers ** In excess of airborne concentration requiring medical monitoring Laboratory: Clayton Environmental Consultants Data Retrieval Numbers: LKL 630-634 8005 0710 PRODUCED BY FORD