Document 44DD64D12XaazzJyL03Yj3LjR

EiajJak E. I. du Pont de Nemours & Company >NCOHOHATCP Richmond. Virginia 23212 TEXTILE FIBERS DEPARTMENT n ;x PLAINTIFF'S EXHIBIT DUP-738 SPRUANCE FIBERS PLANT Richmond, Virginia November 15, 1966 DR. C. A. D'ALONZO MEDICAL DIRECTOR WILMINGTON SPRUANCE CONSTRUCTION INSULATION ACTIVITY A. Full-time insultors: 49 at present. Minimum - 30, Maximum - 65. B. Part-time insulators: None. C. Most prevalent types of insulating material: 1. Calcium silicate 2. Polystyrene 3- Fiberglass D. Insulation spraying: 1. Foster FVA 2. Cork impregnated mastic E. No mesothelioma or carcinomas among insulation workers on construction. One case of asbestosis occurred in a worker who had been on this site for four years and is now on total and permanent disability. F. When sawing insulation there is no requirement for respirators. 1. Some men wear them and some do not. 2. When removing obsolete insulation, gloves are worn and respirators are available but use is optional. 3. In spraying insulation materials, gloves and full face mask are required. BETTER THINOB FOR BETTER LIVING . . . THROUGH CHEM/BTHV nnn . , , DU 054307 DR. C. A. D'ALONZO 2 November 15, 1966 Insulation for construction on this site is done by. the Armstrong Contracting and Supply Corporation. The supervisor for them on this site has been with them for twenty-five years and says none of the Armstrong men have ever had any symptoms, and states it has been his observation that old boiler men are the ones who have developed asbestosis. His company does not do boiler work. He has heard that the local union (about 135 men) have been surveyed in the past few weeks, and that 28 men here found to have some degree of asbestosis, six of them presently working on this site. Sub-contractors employees are not seen by Construction Medical except for acute illness or injury, so we have no first hand knowledge of the situation. MEDICAL DEPARTMENT BEF/cps B. E. FIELD, M.D PLANT PHYSICIAN Dup II10058 DU 054308