Document MG9M7LzBkkgyK4ryXoGzyp82j

' FDOM SiNKLE BADIN WORKS TO MR. M. J. CAPRIO PITTSBURGH OFFICE May 29, 1973 OSHA ASBESTOS COMPLIANCE QUESTIONNAIRE r. The captioned questionnaire was sent on March 30 to the thirteen locations" which had Smelting and/or Ingot operations; replies have now been received from all. Replies from the five "Ingot only" locations have been forwarded to Mr. J. A. Dunbar in Pittsburgh. Copies of the remainder are herewith forwarded to him. Mr. G. R. Swany and I have reviewed the replies from the eight joint SmeltingIngot locations, and a brief summary is being made. In general, the plants appear to be aware of the detailed requirements of the OSHA regulations, and are working toward compliance with them. Table I summarizes the Industrial Hygiene and Medical section responses. Mr. T. B. Bonney and Dr. W. M. Dawson are receiving copies of the Industrial and Medical sections of the completed questionnaires, and it is assumed that they will take any action which appears to be appropriate in their areas of responsibility. The initial sampling surveys are still under way at Badin, Rockdale, Tennessee and Warrick; these plants are hereby requested to report to me their status as of July 31, 1973. Massena alone has decided that no dust-count surveys are needed, on the basis of their elimination of fabrication of non-locked-in asbestos products. (Marinite shapes are purchased). The third section of the questionnaire dealt with compliance, materials, and operations. Copies of the replies to this section are herewith forwarded to Mr. V. M. Rieke of Environmental Engineering. Table II is a compilation of the operations and materials which the eight plants considered to be of concern. Every plant is asked to examine the list, to see whether there is a material or operation which has been overlooked locally. No one mentioned the potentially hazardous maintenance of dust collectors and ducting which handle asbestos. Bag changing and other work might easily expose workers to conditions outside the ceiling concentration (10 fibers), so the operation should be sampled, and proper precautions taken. Wenatchee, Vancouver, Tennessee, Rockdale, Massena, and Badin should examine their procedures for removing and disposing of potlining insulation and other installations containing asbestos-bearing Hi-Temp or Superex. Only sampling can determine whether the exposure limits are being exceeded. The requirements of paragraph "(h)(2) Waste disposal" should be examined for application to the local situation. Vernon Works very kindly enclosed some asbestos control measure information which had been provided by the Seattle Area Office of OSHA. A copy is attached. Mr. Bonney comments that while the dust-count Information may be a useful guideline, variations in plant procedures make actual local dust counts necessary. / \ ( / r-----R. C. HINKLE f^^RCHibpc ALCOA F-494S (llfV 1 May 29, 1973 Page 2 cc: E. M. Morgan - Badin Works R. W. Knapp - Massena Operations A. A. Rambikur - Pt. Comfort Operations E. B. Parker - Rockdale Works G. W. Anderson - Tennessee Operations P. F. Woodward - Vancouver Operations R. L. Parsons - Warrick Operations J. E. Owen - Wenatchee Works M. 0. Colwell - Pittsburgh (29) L. V. Cralley/P. R. Atkins - Pittsburgh (7) V. W. Rieke/R. C. Cook - Pittsburgh (2) W. N. Dawson - Pittsburgh (7) M. J. Caprio - Pittsburgh (19) R. W. Wrenn/J. A. Dunbar - Pittsburgh (23) S. A. Jones/G. R. Swany - Pittsburgh (23) J. Z. Nelson/A. J. Sartschev - Oliver Plaza (7) R. P. Carter/T. B. Bonney - Pittsburgh (7) I TABLE I A brief summary, the status of the Industrial and Medical sections, as April 1973, is given below: PLANT Badin Massena Pt. Comfort Rockdale Tennessee Vancouver Warrick Wenatchee INITIAL SAMPLING Under way None Complete Under way Under way Complete Under way Complete AREAS FOUND EXCEEDING LIMITS None yet 0 None yet Three 0 None yet 0 INITIAL ASBESTOS MEDICAL EXAMINATION Complete None Complete None Under way Getting set up Complete Under way TABLE II A compilation of the operations which the eight plants considered to be of concern, as of April, 1973; MATERIAL OPERATIONS Marinite Sawing, drilling, routing, sanding Work area clean-up Movement to and from Stores Dismantling and disposal after use Properzi spouts Asbestos Millboard S awing, sh aping Superex, Hi-Temp Removal of insulation from various installations: Potlinings, carbon baking furnaces, crucibles, metal filters Chicago Firebrick Co. Super-insulation cement Insulate mixers and Tar pumps, Dough-balls for plugging furnace tap holes. Removal and disposal of used material JM 352 (Asbestos Shorts) Trough lining and removal of material Insulation of steam pipe elbows Joint between furnace sidewalls & roofs JM No. 19 Cement Trough lining & removal Eagle Pitcher PV Block Furnace Door insulation: install, remove, dispose I ASBESTOS HAZARD CONTROL - GENERAL CHANGING WORK PRACTICES IS A SIMPLE, ECONOMICAL, AND PRACTICAL APPROACH TO CONTROL OF ASBESTOS DUST PRODUCTION Some recommended practices are: 1. Use plastic waste bags for collection, transportation, and waste disposal of asbestos refuse. 2. Use a portable industrial vacuum cleaner for pick-up of asbestos waste and dust at the work site. 3. Use plastic impregnated paper coveralls and dust respirators for dusty operations of an incidental nature. The coveralls are throw-away and eliminate processing and cleaning. 4. Use down-draft ventilated portable work tables for precutting and assembly at asbestos materials at remote locations, mobile situations or inside ships. 5. Precut all block insulation in shops under ventilated condition and then deliver it to location. 6. Package pre-cut block insulation in plastic and add water to contain dust, maintain integrity of gores, indetification, and ease of handling. 7. Reduce airborne asbestos dust 50 to 60% by prewetting the materials before handling. 8. Mix asbestos cement (15%) at remote locations under ventilated conditions. Mix small batches in plastic bags. 9. Spread plastic or canvas drop cloths at work site to contain and facilitate clean-up. 10. Conduct modular assembly of asbestos materials on piping prior to installation. 11. Consider disposable forms of respiratory protection for onetime or intermittent use situations. (U.S. Bureau of mines Approved.) 12. Substitute non-asbestos products whenever suitable, acceptable and feasible. 13. Use enclosures to limit the spread of dust from unit operations. 14. Separate clean-up areas for workmen. 15. Limit exposure of other trades in the vicinity of asbestos work. 16. Develop asbestos work stations, either portable or stationary, to control dust production. 17. Develop suitable storage and storing areas. Some practices that produce high asbestos dust levels: and SHOULD be prohibited. 1. Do not clean up fallen asbestos debris with brooms or brushes. 2. Do not allow debris to be thrown from staging or from one deck to another. 3. Do not shake coveralls or drop cloths. 4. Do not remove respirators before asbestos dust laden clothing. 5. Do not clean dusty clothes with an air gun. 6. Do not vent asbestos dust picked up by ventilation into adjoining work areas, or ships compartments. 7. Do not wear respirators covered with asbestos dust. 8. Do not wear street clothes to handle asbestos materials or under known dusty conditions. 9. Do not use asbestos for welders pads. 10. Do not allow uncontrolled cutting, ripping, sawing, or bracking of asbestos in small enclosed spaces. r PREDICTED ASBESTOS DUST CONCENTRATIONS (Taken From Actual Measurements of Industrial Operations) Type of Work Present Fibers/ml 1. Mixing & Applying Cement and Cloth to Insulation Material Good Ventilation 2.5 Poor Ventilation 4.6 Improved .5 1.0 Change of Work Practice & Approved Respirator .05 .10 2. Cutting & Applying Insulation Block or Sections to Piping Good Ventilation Poor Ventilation 2a.Cutting & Materials for Later Use in Cutting Sheds 5.2 11.5 7.6 2.5 5.0 1.5 .30 .50 .20 3. Spraying Turbines or like Machinery in partially enclosed Spaces Spray Operator 67 Hopper Fender 10 .7 .1 3.0 1.0 4. Asbestos Cloth; Cutting 25-30 Fitting, Glueing & Installing 10 .5 5. Magnesia Block Cutting Ventilated Unventilated 10 100 5 20 1 5 6. Amosite Cloth Cutting 5-15 5 1 7. Asbestos Cloth Cutting Ripping Cutting 50 10 2 2 1 1 .< Type of Work. Present Improved Change of Work Practice & Approved Respirator 8. Amosite Installation 10-45 10 1 or Ships (enclosed Spaces) 9. Magnesia Block Cutting & Installation Ventilated Unventilated 5 25 21 51 10.Asbestos Cement Mixing Open Enclosed Bag 100-200 3 25 1 10 1 11.Spraying Asbestos Materials (5%) on New Building 68-100 50 10 12.Mixing & Charging at Hopper 10-40 10 5 13.Incidental Exposure from Spraying Nozzle 75 Feet away 40-60 75-100 30 5 14.Wetting Down of rip-out materials 50-70 15.Rip out of Materials-dry 16.Brake Shoe Repair Shop 200+ 25 20 100+ 10 5 50 2 17.Coveralls Covered with Asbestos Dust 5 (Intermittent) 1 >1