Document ppJEGKwnaLzjVz9QbbeybqRkX

CC (lip ^ if 1 - ii>(V^h*\kwAU CGai\b^idlOk* c.;^;v.:c.^La plastscg SOUTH CHAui.L$7GN ?LA IT P. 0. BOX 8004, SOUTH CHARLESTON, W. VA. 25303 T'j (Nfimei John Carvajal Division Location Copy to M. E, Eisenhour^H W, R. Manning R. N. Wheeler, Jr. Data September 26, 1974 Originating Dopl, Answering loiter dalr- Subject Parameters for Selected VC1 Levels at Dispersion Resins Unit The attached estimates are submitted in response to your request for information concerning uiispersion Resines Unit (1) Investment Estimates for Projects to achieve 5Q, 25, and 10 ppm VC1 TLV (threshold limit value levels), (2) Existing TWA (time-weighted averages), and (3) Extent of Fresh Air Mask wearing. I. Investment Estimates for 50, 25 and 10 ppm VCL TLV A. 50 ppm TLV t Projects Cost Estimate, M$ Status 1. Chromatog raph 2. Breathing Air System 3. Dryer Control Room Air Conditioning 4. Enclose VC1 Compressor 5. Chromatograph Micro - Computer 6 * Transfer Operation Automation 7. Condenser Brine Cooling 8. Discharge Stack #1 Dryer 9. Reactor Control Room Air Conditioning 10. Dryer Cuno Filters 11. Autoclave System Ventilation Subtotal, 50 ppm TLV 20 10 20 5 10 40 40 30 30 40 280 525 & Complete Complete Complete Complete In Engineering Approved In Engineering In Engineering In Engineering Submitted for approval In Engineering UCC 090794 2- - B. 2 5 ppm TLV Projects 1. Latex Stripping System 2. VC1 Gas Holder 3. Contingencies Subtotal, 25 ppm TLV Cost Estimates, M$ 1, 000 250 125 1, 375 b 10 ppm TLV Projects Cost Estimates. M$ 1. Solvent Cleaning System 2. Contingencies 3. Autoclave Replacements Subtotal, 10 ppm TLV 400 100 . lf 200 1, 700 C Status Conceptual Stage Conceptual Stage Conceptual Stage Status Conceptual Stage Conceptual Stage In Engineering On Hold NOTES: a,b, c: Subtotals a, b and c for 50, 25 and 10 ppm are additive; e, g. , the total cost for 25 ppm TLV would be $525M + $1, 375M = $1, 900. d : Autoclave replacements needed to stay in business. II. Time-Weighted Averages A. Average TWA The average 8-hour TWA for the entire unit is 7. 5 ppm VC1; this is the September 25th month-to-date average VC1 concentration from chrom atograph data. This is really a potential exposure TWA. The actual exposure TWA would be somewhere near this value. The laborer would be closest the average potential VC1 exposure. B. Maximum TWA The actual maximum TWA can only be guesstimated, since fresh air masks are worn in areas and on jobs known or suspected to be above 50 ppm; the best guess is 20 ppm. Chromatograph summaries indicate that the highest potential TWA ever recorded for an 8-hour period was 36. 8 ppm; the highest in September was 15. 9 ppm. The utility fitter has the highest potential VC1 exposure. UCC 090795 t III. Fresh Air Mask Wearing The following lists the per cent time each hourly man at Dispersion Resins Unit now wears a fresh air mask; Job Title Percentage Utility Fitter (2) Transfer Operator Charging Operator Laborer Utility Operator Ope rations Mechanic Dryer Operator Board Operator Weighmaster (2) 31 19 18 9 7 6 5 3 0 Average 12% The estimates provided in above Section I thru III are subject to rapid changes as progress is made on installation of additional improvements, both capital project^ and budget-financed projects. Sincerely, JEG/klt Jay E. Giffin ucc 090796 UNTON CARBIDE CORPORATION Chemica Is To: Messrs. C. J. Brounstein T. W. Carmody J. L. Carvajal M, E. Eisenhour R. N. Wheeler J. W, Whittlesey D. L. Wiley N. L. Zutty From: Dr. A. B. Steele 0 Ct~*p VT- ^ . 270 Park Avenue, New York, New York , ^'rT H , TC c. CD" Date: September 27, 1974 (^/ 10017 219/4 fLYKs, . ^RS.Wpq' M. L L V - J!- Subject: Record of Conversation Related to Proposed Itermanent OSHA Standard on Vinyl Chloride Exposure -- Firestone Plastics Company Mr. T. C. Walker, President, Firestone Plastic Company, summarized today the outcome of his conversations of Tuesday and Wednesday with Mr. John H. Stender, Assistant Secretary of Labor for OSHA, and with members of his staff. Likely Limits to Appear in VCM Standard Scheduled to Issue October 5, 1974: A. For the period from October 5, 1974 - January 1, 1975, the limit of VCM exposure will be continued at a 50 ppm ceiling. * B. Effective January 1, 1975, the limiL of exposure will be 5 ppm ceiling and 1 ppm TWA (8 hr.). Wearing of respirators will be at the option of the worker for exposures to a ceiling of 25 ppm; above 25 ppm ceiling, respirators will be mandated. C. Effective January 1, 1976, the limit of 5 ppm ceiling and 1 ppm TWA will be continued but wearing of respirators will be mandated at levels above 5 ppm. D. As of January 1, 1975, fabrication plants that can provide certi fied evidence that VCM levels in operations are below a ceiling level of 5 ppm will not be subject to the Standard. Fabrication plants that cannot so certify, will come under the same regulation as resin operations (see A, B and C above). Mr. Walker advised that Firestone will undertake court action to attempt to set aside the standard and to stay its effective date. He is seeking to form a consortium of selected members of the PVC producer group to join Firestone in the action, I advised Mr. Walker that the Operations group relating to the PVC businesses within Union Carbide had recommended court action on this matter to the Management Committee and that no firm commitment could be made without ap proval of that Committee. A decision should be available early next week. UCC 090797 September 27, 1974 To discuss procedural matters, Mr, Walter B. Connolly, Jr,, Counsel for Firestone and a member of Vedder, Price, Kaufman and Kammholtz will contact our John W. Whittlesey, ABS:ml UCC 090798 INTERNAL CORRESPONDENCE CHEMICALS AND PLASTICS TO (NAME) COMPANY LOCATION Chief Operators - Bldg. 174 Opeiato r s - Bldg. Vinyl Shift Prod. Superv COPY TO JMr. R. L. Frantz Mr. F. L. Johnson Mr. R. H. May Mr. A. A. Peterson Mr. G. T. Pyle Mr. O. A. S he Lon Mr. K. L. Topham P, O, BOX 471, TEXAS CITY, TEXAS 77590 date September 30, 1974 subject Personnel Responsibilities In Suspension/Non-Solvent Area Gentlemen: A new operating position is to be established October 1 with responsibility for the VC1 Recovery System. To allow for this, a departmental meeting was held to discuss an efficient re-distribution of duties in the Suspension/ Non-Solvent area. The following is a summary of the results of this meeting. It should be noted that this is a tentative roster, subject to further change, therefore, your comments on this subject will be appreciated. Shift Production Supervisors 1. The Day Shift Supervisor will see to it that all unnecessary outside lighting is off during daylight hours. Chief Operators (or individual appointed by him) 1. Will be responsible for monitoring the VFA analyzer. This in cludes recording the time and reason for the alarm sounding and taking positive action to correct the mishap. Suspension Autoclave Operators Will be responsible for: 1. Charging, controlling, blowdown and vacuum stripping on the D-line autoclaves and recording the proper data. UCC 090799 Personnel Responsibilities In Suspension/Non-Solvent Area 2. 2. Sampling the resin upon blowdown. 3. Operating the autoclaves during an MEK wash cycle. Non-Solvent Autoclave Operators Will be responsible for: 1. Operating the C-line autocLaves and recording the proper data. 2. Cleaning pLugged skin pots for C-line. 3. Operating the No. 1 compressor and Recovery System, and recording the proper data. 4. Operating the unloading of IPP catalyst. Utility Man Will be responsible for: 1. Cleaning plugged skin pots for D-line. 2. Cleaning blocked slurry lines. 3. Operating MEK system during an autoclave wash. 4. Preparation of additive mixes. 5. Transferring catalysts to Building 174. 6. Operating the water charge system. 7. Operating fresh VCl storage tank for both Suspension and Non- Solvent Area. 8. Operating the agitator seal system. UCC 090800 Personnel Responsibilities In Suspension/Non-Solvent Area 3. VC1 Recovery Man Will be responsible for: 1. Operating the Off-Gas Recovery System and recording the proper data (to be specified later). 2. Operating the No. 2 compressor and recovery system, and recording the proper data (to be specified later). 3. Operating the D-line VCl recovery tanks. All other duties not mentioned above, that are already assigned, will, remain the same. Sincerely, RPK/st R. P. Keefe UCC 090801 INTERNAL CORRESPONDENCE CHEMICALS AND PLASTICS to (name) company location Suspension/Non-Solvent Vinyl Chiefs and Operators Vinyl Resins Shift Prod. Supervs. date P. O. BOX 471, TEXAS CITY, TEXAS 77S90 October 1, 1974 copy to Shift Superintendents Unit Supervisors and Engineers subject Additional Operating Position Effective today an additional operating position is being added at Building 174 the position of Recovery Operator. Mr. Rick Keefe has written you a note outlining the major duties of this position and the other Building 174 positions. The purpose of this letter is to emphasize that by the addition of this position an increase in vinyl chloride efficiency is expected because of better control of the recovery systems the added manpower will allow. Some additional logsheet readings will be required and better monitoring and control of monomer leaks is expected. Emphasis in the unit has switched away from maximum production to maximum efficiency. Reasons for this are: 1. Limited monomer availability. 2. Increased cost of monomer. 3. OSHA and other regulations limiting monomer exposures. Your help and cooperation in achieving our new objectives will be greatly appreciated. Thanks, RLF/st R. L. Frantz UCC 090802