Document Q2YJeE691wKe0Ly7eooExNzv

PLAINTIFF'S EXHIBIT VVP-843 E. I. du Pont de Nemours & Company CHAMBERS WORKS CCRWATCP NCW JCftSCT M02) "T jb--+r 0* J. Stopps, K.D , Haskell laboratory A. Zapp, Jr., M.D., Haskell Laboratory L. T. Thatcher, Construction V. M. Deputy, *ng.-l Construction F. L. McBnany, Jr., Ads. Bldg. J. L. Richmond, Ads. Bldg.) In F. Lauraen, Ads. Bldg. ) Turn TdJtFMONC * Coot 0t-2M-S000 C-C C 2,2,7 December 9, 1966 C. A. D'Alonzo. M.D. Medical Dlvlaion Memour* Building 11400 Wilmington ASBESTOS The ancloaad subject matter was developed to answer your letter oi Bovember Q. 1966, concerning asbestos. A. Busbar of full-tise Insulators: Chambers Works Construction Engineering MAC 18 40 Total 58 B. lumber of employees doing part-time Insulating Chambers Berks Construction Engineering MAC 23 0 Total S3 6. 'Three most prevalent type Insulating materials msedt Unibeatos" Thermae11 Fiberglass Wool 1 1 l' DUP 1141642 Berre* rothings scttcp living . . .rnmouan CMKmsrmr DU 059124 '`wunwMTt,-i iifijfc -fc^ .mmixiL: -riiir-'Minr - - ,ta j-- .CiUa": - '-a::-. jwSrale -Mi. Fifie 2 December 9, 1966 C. A. B'Alonso, M.D. Aibestoi D. Ipraylng of Insulating materials: Bone rarely; practically nil. toploys "Limpet," an asbestos eontaining insulating material in a vet fons while being prayed. K- lumber of eases of the following diagnoses: 1. Asbestosis 2. Mesothelioma 3- Carcinoma (among insulators) o 0 0 F. Preventive measures or safety equipment required: 1. Sawing Insulating materials: All power driven cutting machines are used in a special room The atmosphere is exhausted by a Torit Cyclone Collector. Air analysis for dust and asbestos reveals levels are well below presently established threshold safety limits of concentration, five million particles/ m3. 2. Removing obsolete insulation: one. 3- Spraying insulating materials: This is only done in a remote area far removed from operations. The spraying modality is infrequently employed. Ihen used, the operator wears a simple dust respirator mask and works with tne wind to his back All other personnel are prohibited in and around the area at the time of spraying. Although relativsly simple replies have been made to your questionnaire, additional explanatory inxoxmat.on is in order. Hy letter to you of August 19, 1966, spelled out the names of a^loyess who have worked as pipe-covtrers, their A.f.B,, and their medical classifications (or other health states). This Covered the years 1950 through 1965* Included was a list of asbestoscontaining materials known to be used at site. \ DUP 1141643 h DU 059125 Page 3 December 9, 1966 C. A. D'Alonso, M.D. Asbestos 0 supplement that letter and to elaborate further on each question In your questionnaire, I submit the following! B. Occasionally mechanics from other crafts are used as part-time insulators. These men can vary from day to day but practically all mechanics get some exposure to asbestos during field wor*. There is constant handling, cutting, installation, removal and replacement going on to varying degrees by many employees who are not classified as plpecoverers. C. It is difficult to determine, with any degree of accuracy, the most prevalent type asbestos-containing insulation material used. Brest quantities of asbestos-containing materials are used on Chambers Works. These materials come in any number of sizes, shapes, rolls, drums, mixtures with other nonasbestos-containing materials, vet, dry, powdered, paper, eidlng, floor covering, cloth, etc. Thus to assess quantity is difficult vhen one tries to compare. The type used for the insulation, its thickness, handling, locale, and means of application are all factors in the assessing. More than one supplier is used to obtain our materials and the type material used varies with the Chambers Works Construction group and the Chambers Works engineering MfcC group. Based on quantities purchased for use by the latter group during 1965 as compared with 1966, there is a distinct over-all decrease in use in 1966 of asbestos-containing materials. X. With a total of 1,A20 mage roll men In Class XI, XXI or XV, 100 are so classified for pulmonary reasons. Of this 100, tvo are plpecoverers. (See letter of 0/19/66.) Since the year 1950 through 1966 to date, we liet 1,319 estployaea aa decaaaed. Of thaae, 130 dlad from pulmonary raaaons and of thl& 130, 53 vara from carcinoma of tha lung. Of tha total deaths, only 5 vert ever pipecovarers. One of these insulators died listed as "cor pulmonale--the remaining H were nonpulmonary causes. f.^BT Beeld, Jr., N.D. Birector, Medical Division WBV/kk Enclosures (3) DUP 1141644 DU 059126 ASBESTOS BBABIIO MATERIALS The following 1* a list of materials which Chambers Works Construction lc testing on the premise that they contain asbestos. Those marked with an asterisk (*) ere known to contain asbestos or use asbestos components In conjunction'."'... 1. Unibestos* 2. Urethane 3* Themobestos* . Thermasil* 5. laylo* . Poaaglass* 7. Mineral Wool 8. Finish Cement* 9* Powerhouse Cement* io; u/v 50 U. Fiberglass (Heavy and light density) 12. Asbestos Siding* 13. Karaite Board 14. Unbonded *B" Fiber Blanket 15* Asbestos Cloth* lo. Floor Tile 17. Limpet* 18. Calslllte 19. Folystyrem 20. U-200 21. Caposlte* (Foreign Made) 22. lagle-Pieher Cement ("One Coat") 23. Certain Roofing Materials DUP 1141645 g, DU 059127 MEDICAL CLASSIFICATION OF VAQE ROLL EMPLOYEES -- _______ DECEMBER. 1966 Class II Class HI Class IV Total All Causes 1,043 375 ____ 2 1,420 Pulaonaxy Reasons 36 14 JSL 100 Tear 1950 1951 1952 1953 1954 1955 1956 1957 1958. 1959 I960 1961 1962 1963 1964 1965 1966 to date Total Total 51 54 62 41 67 61 88 73 7? 68 79 86 100 100 84 118 108 1,319 Pulaonary 2 2 5 2 3 6 6 5 5 9 14 9 8 15 10 18 130 CA of Lung (2) (2) (2) (2) (2) (5) (4) (2) (2) (3) (5) (1) (4) (7) (3) (6) Ml (33) DUP 1141646 & DU 059128 ASBESTOS PURCHASES OH CHAMBERS YOKES WHICH ARE USED BY THE EKGIHEERIHG MfeC GROUP Cod* 02-04-003 -004 -12-280 -24-045 11-66-004 -008 30-O3-OIO -44-003 -005 -50-002 30-50-244 to -262 Description__________ Onit6 Ceaent-Lagtone Ceaent-Lagtone Oal. Oal. Ceaant-Tneraotex Drua-470# Felt-roofing-701 45# Asbestos Boll Paper, Asbestos 1/16 Paper, Asbestos 1/8 Lb. Lb. Adhesive Fibrous Carey Cement-Insulating Ceaent-Laptite-JM Ceaent-Asbe6tos 0al./9 lb. Bag Oal. Bag Covering, pipe-Fiberglass with Feet Asbestos Us are 1965 To Date 1966 36 4 39 42 $ 1C1 5,362 69 296 101 2,561 136 187 15 36 133,518 112 124 13 39 111,976 DUP 1141647 DU 059129