Document 5eYBxxb8gwDZoLzaRKpOXMwD

E. BROOKS PARKER ROCKDALE WORKS TO MEMORANDUM 1983 January 12 RE: INDUSTRIAL HYGIENE AUDIT - 1983 JANUARY 18-20 I recently distributed some information on Industrial Hygiene concerns and control equipment to most of you for your use in preparing for the upcoming Industrial Hygiene audit. It is intended to serve as a reminder of known major problem areas in the various departments and thereby help you in fielding any questions the auditors might have along these lines. The auditors will probably want to know something about how you indoctrinate new employees and retrain older employees in these areas. Frequency of required training is shown as ..an attachment to Industrial Hygiene Rule 000 in your Safety Manual. Jim Richter and I are available to help you in this effort and you will be receiving quarterly reminders of progress in meeting these requirements. In addition, you should consider using safety contacts as a supplement to the formal training. ' Indoctrination of new employees, whether fresh off the street or transferred in from other areas of the plant, needs to be addressed also. Specific instruction concerning health hazards needs to be included in the orientation which these people receive when they report for work. Such information should also be included in JSA's where appropriate. Knowledge of how these things are accomplished in your department will be needed in answering the audit team's anticipated questions. Give me a call if you need help. . E. BROOKS PARKER EBP/mz Attachment cc: Matt Everett Bob Turner Ted Randall Jerry Roddy Bob Hubbard Bill Eckert ALCOA ARD 003638 sr-*56.> (cv u e) CARBON PLANT Concerns t Coal Tar Pitch Volatiles Mixer floor Press Room Cleaning mixers, conveyors, screws Noise Bal1Mi 11 area Hummer screens I Silica Gunniting flue walls Control Ecuipment Green mill dust collection system Mixer ventilation system Sound booth - ball mill area ARD 003639 RODDING ROOM Concerns I Noise General area - 85 dBA - hearing protection recommended Hanging Station - 90 dBA - hearing protection required Friction joining Trichloroethane - stub dipping Control Equipment Ceiling baffles for noise control Wall covering on southwest wall for noise control Noise enclosure around impactor I Noise enclosure around stripping press hydraulic equipment Dampers on trolley bells I Bumpers on trolleys I Ventilation system at stub dipping station ARD 003640 POTROOMS Concerns Fluorides Dust General area - ore bucket filling - ore bin filling - pattern bucket filling Bath crusher - CY 19 front end loader - respiratory protection required Noise Siphon rowelling - 115 dBA - hearing protection required TCC crews - cleaning butts, crust breaking - 85 dBA - hearing protection recommended Bath crusher - belt attendant - 85 dBA - hearing protection - recommended Walden Front End Loaders - CY 19 charging hopper 90 dBA, hearing protection required - Butt bath pick-up - 85 dBA, hearing protection recommended Heat Stress Control Equipment Potroom fume collection system Gatorade dispensers Catco crane cab ventilation systems ' ARD 003641 POTLINING Concerns Coal Tar Pitch Volatiles/methyl napthalene Seam mix mixing Seam mix installation - respiratory protection required Mixing C38 cement - respiratory protection required Silica Installing pot insulation, respiratory protection required Dumping potshells in Bldg. 27 Asbestos Removing potshells and cleaning pot stalls, respiratory protection required when shell is underlain with asbestos millboard strips Cleaning pot bottoms when shell was underlain with asbestos millboard, respiratory protection required Metal fume Cutting collector strap bolts, respiratory protection required Fluorides I Dust Noise Potdigging, hearing protection required Seam tamping with rammer * Caustic Cleaning potshells prior to pot repair Control Equipment Ventilation system in mixer building ARD 003642 ENVIRONMENTAL CONTROL Concerns Fluorides and Dust Bag changing - respiratory protection required during blowdown and bag removal I Noise Bag changing - noise from operating units A398 and A446 operators - if spending extended time under reactors Coal Tar Pitch Volatiles Cnanging bags in A446 units - respiratory protection required during blowdown and bag removal I Pitch burns A446 bag changing Control Equipment ARD 003643 UTILITY/CONTROL/LABOR POOL Concerns Dust Ore shed, respiratory protection required when working in basement Cleaning ore bridge t Noise Ore shed when opening car hopper slide gates Repairing siphons, using air wrench Asbestos When replacing transite duct sections I Confined space entry Inventorying tanks - follow confined space entry rules Fluorides Pot sampling. Taking pot temperatures ARD 003644 ATOMIZER Concerns Noise Bldg. 401 - during atomizing, hearing protection required except in soundproof room Bldg. 402 - compressor house - hearing protection required when assigned to work in building Dust Cleaning rotex screens Inert gas Confined areas of the plant Ionizing radiation Portaspec unit in Bldg. 401, film badges required Control Equipment Soundproof room in Bldg. 401 ARD 003645 INGOT/PROPERZI Concerns Noise . Properzi operator - 90 dBA, hearing protection required All other production areas - 85 dBA, hearing protection recommended Chlorine DC casting areas primarily but leak could affect entire area * Si C14 Freon No. 3 D Casting area Control Equipment ARD 003646 MAINTENANCE Concerns Bldg. 44 - Machine Shop Noise Chambersburg hammer Welding fumes Bldg. 144 - Garage Welding fumes Engine exhaust Battery fumes Solvent Asbestos (brake linings) Bldg. 48 Yard Service Paint fumes and solvents Herbicides Bldg. 51 - Electric Shop I Solvents Asbestos (brake linings) Bldg. 66 Boiler House Noise - 90 dBA, hearing protection required (except in soundproof room) when assigned to work in area - I Asbestos - when working with old insulation. Rules for removal of asbestos must be followed (respirators, wet down, place in bags) Bldg. 34 Ingot Noise - 85 dBA in all production areas. recommended. Hearing protection Chlorine - when working on chlorine system, respiratory protection required - when repairing chlorine leaks, self-supplied breathing equipment is required Si Cl4/Freon - when working on Si CI4 system leaks, appropriate respiratory protection is required. Bldg. 27 Pot repair Welding fumes C Noise Shell repair Melting buttons from anode buss Caustic - residue on inside of potshells Solvents Brickmasons - Noise - Hearing protection required when operating brick saws. . ARD 003647 Maintenance - continued Field areas I Welding fumps Confined spaces Chlorine - water and sewage treatment Various Nalco water treatment chemicals I Lime - Bldg. 70 Noise Control Equipment Bldg. 44 Welding fume exhaust systems Noise enclosures for electric welders Bldg. 144 Vehicle exhaust ventilation system Bldg. 66 Noise proof room Bldg. 27 Welding fume exhaust systems ARD 003646