Document 93YOqYr906ebvMoekDeQ9qkE5

FROM 0. L. ROYER PERSONNEL DEPARTMENT CONFIDENTIAL June 21, 1967 TO MR. R. E. WHITSON ADM. & TECH. MANAGER - 7'/* ^ RE: ENVIRONMENTAL CONDITIONS The following is a list of problem areas that have come to our attention over the past several years, and are, for the most part, still being pur sued by one or more groups in the organization. The Industrial Hygiene Committee has been involved in most of these areas. POTROOMS & FLOTATION PLANT 1. Vortex tube program 2. Dusts 3. Electrode fumes and blow-outs - automation program in process. SMELTING POWER DEPARTMENT 1. High atmospheric temperatures 2. Excessive exhaust leaks - test program for CO & nitrogen dioxide 3. High noise level - particularly Bldg. #67 4. Fumes from activator reclaim unit REFINING POWERHOUSE 1. High atmospheric temperatures INGOT PLANT 1. High atmospheric temperatures 2. Dusts from marinite sawing 3. Chlorine fluxing PRECIPITATION 1. High noise levels in tank scaling POT REPAIR 1. Noise level - digging machine 2. Dusts MACHINE SHOP - R-148 1. Toxity of metallizing operation - particularly wires containing lead 2. Copper and flux poisoning in connection with burning, brazing & soldering CHLOR-ALKALI 1. Mercury contamination - test program in progress 2. Chlorine fumes APC 005312 ALCOA r 4SS1-RCV. OOM FROM 0. L. ROYER T0 .MR. R. E, WHITSON LABORATORY 1. Ozone level in quantometer room STOREROOM 1. Storage of chemicals requiring close temperature control such as Chlorothene-Nu and Methol Ethyl Keytone. Special storage facilities have been provided. PASTE PLANT " 1. 2. Heat conditions on blender floor. Mixer floor problem has been solved by installation of ventilating system. Coke dusts -r 1;' ' ELECTROLYTE 1. Hydrofluoric acid vapors 2. Dusts PAINT DEPARTMENT - 1. Lead poisoning - continuous test program in operation. GENERAL 1. Alumina dust 2. Bauxite dust 8, Toxity of organic solvents in application of epoxy and polyester coatings. OLRidk 0. L. ROYER APC 005313 a? 4i<t N(y. aoow 4