Document 8VM9xjm73bRBK3zeoyk6JvBXe

R.l UTAMJ*M0* E. I. du Pont de Nemours & Company IlWCOffPQMATCO \ CHAMBERS WORKS DEEPWATER. NEW JERSEY 0*023 G. J. Stopps, M.D., Haskell Laboratory J. A. Zapp, Jr., M.D., Haskell Laboratory L. V. Thatcher, Construction W. M. Deputy, Eng.-l Construction F. L. McEnany, Jr., Adm. Bldg. J. L. Richmond, Adm. Bldg.} In F. Laursen, Adm. Bldg. ) Turn CCHfa&tfk U)d &/<$ PLAINTIFF'S December 9, 1966 C. A. D'Alonzo. M.D. Medical Division Nemours Building 11400 Wilmington ASBESTOS The enclosed subject matter was developed to answer your letterof November 8, 1966, concerning asbestos. A. Number of full-time insulators: Chambers Works Construction Engineering M&C 18 40 Total 58 B. Number of employees doi-ig part-time insulating: Chambers Works Construction Engineering M&C 23 0 Total 23 C. Three most prevalent type insulating materials used: "Unibestos" Thermasil Fiberglass Wool UP 1110090 BETTER THINGS FOR BETTER LIVING . . . THROUGH CHEMISTRY Page 2 December 9, 1966 C. A. D'Alonzo, M.D. Asbestos D. Spraying of insulating materials: Done rarely; practically nil. Employs "Limpet," an asbestos containing insulating material in a wet form while being sprayed. E. Number of cases of the following diagnoses: 1. Asbestosis 2. Mesothelioma 3. Carcinoma (among insulators) 0 0 0 P. 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: None. 3. Spraying insulating materials: This is only done in a remote area far removed from operations. The spraying modality is infrequently employed. When used, the operator wears a simnle dust respirator mash and works with the wind to his back. All other personnel are prohibited in and around the area at the time of spraying. Although relatively simple replies have been made to your questionnaire, additional explanatory information is in order. My letter to you of August 19, 1966, spelled out the names of employees who have worked as pipe-coverers, their A.S.D., and their medical classifications (or other health status). This covered the years 1950 through 1965* Included was a list of asbestos-containing materials known to be used at this site. OUP \\\V Page 3 December 9> 1966 C. A. D'Alonzo, M.D. Asbestos To 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 work. There is constant handling, cutting, installation, removal and replacement going on to varying degrees by many employees who are not classified as pipecoverers. C. It is difficult to determine, with any degree of accuracy, the most prevalent type asbestos-containing insulation material used. Great 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, wet, dry, powdered, paper, siding, floor covering, cloth, etc. Thus to assess quantity is difficult when 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 M&C 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. E. With a total of 1,420 wage roll men in Class II, III or IV, 100 are so classify ' " ' .. Of this 100, two are pipecoverers Since the year 1950 through 1966 to date, we list 1,319 employees as deceased. Of these, 130 died from pulmonary reasons and of.this 130, 53 were from carcinoma of the lung. Of the total deaths, only 5 were ever pipecoverers. One of these insulators died listed as "cor pulmonale"--the remaining 4 were nonpulmonary causes. W. E. Neeld, Jr., I! D. Director, Medical Division WENAh Enclosures (3) UP 1110092 ASBESTOS BEARING MATERIALS The following is a list of materials which Chambers Works Construction is testing on the premise that they contain asbestos. Those marked with an asterisk (*) are known to contain asbestos or use asbestos components in conjunction. 1. Unibestos* 2. Urethane 3* Thermobestos* 4. Thermasil* 5. Kaylo* 6. Foamglass* 7 Mineral Wool 8. Finish Cement* 9. Powerhouse Cement* 10. M/W 50 11. Fiberglass (Heavy and light density) 12. Asbestos Siding* 13 Mamite Board 14. Unbonded "B" Fiber Blanket 15- Asbestos Cloth* 16. Floor Tile 17 Limpet* 18. Calsilite 19* Polystyrem 20. U-200 21. Caposite* (Foreign Made) 22. Eagle-Picher Cement (''One Coat") 23. Certain Roofing Materials DUP >110093 * r MEDICAL CLASSIFICATION OF WAGE ROLL EMPLOYEES _DECEMBER, 1966 _______________ Class II Class III Class IV Total All Causes 1,043 375 2 1,420 Pulmonary Reasons 36 14 -50 100 Year 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 79 68 79 86 100 100 84 118 108 1,319 Pulmonary 2 2 5 2 3 8 6 5 5 9 14 9 8 15 10 18 130 CA of Lun^ (2) (2) (2) (2) . (2) (5) (4) (2) (2) (3) (5) (1) (4) (7) (3) (6) -01 (53) DUP 1110094 ASBESTOS PURCHASES ON CHAMBERS WORKS WHICH ARE USED BY THE ENGINEERING M&C GROUP Code 02-04-003 -004 -12-280 -24-045 11-66-004 -008 30-03-010 -44-003 -005 -50-002 30-50-244 to -262 Description Units Cement-Lagtone Cement-Lagtone Gal. Gal. Cement-Thermotex B Drum-470# Pelt-roofing-701 45# Asbestos Roll Paper, Asbestos 1/16 Paper, Asbestos 1/8 Lb. Lb. Adhesive Fibrous Carey Cement-Insulating Cement-Laptite-JM Cement-Asbestos Gal./9 lb. Bag Gal. Bag Covering, pipe-Fiberglass with Feet Asbestos Usage _ 1965 To Date 1966 36 4 39 42 137 6 344 296 101 5,362 136 187 15 36 133,518 101 2,561 112 124 13 39 111,976 DUP 1110095