Document K6qrEroLkkyezJnQGoNmOZrgK

CITY council. ROBERT J FURLONG. Mayor GENEVIEVE H. ANDERSON CHARLES H. MAtLLIARD JUDITH M POXON LEONIS C. MALBURG TELEPHONE* City Clerk Poucc Dept. Ltfoiow 3-1696 L'JOLOW 7-5287 LUDLOW 7-8135 Fire Derr. Builoino Dirt Engineering Derr Health Derr. - - LUDLOW 8-2522 LUDLOW 3-1666 LUolow 3-1666 LUolow 3-1666 CITY HALL 4309 Santa Ft Avenue ornccKS F. A ZIEMER. City Clen* L R. 8URCH. City treasurer VINCENT R. POXON. City Attorney ARTHUR C. NELSON. JR . City Enginclr D. D. GRAYSON. Traffic Engineer R. H. KING. Supt.. Water 6 Sewer Shtems DR C E NEMETHI. Health Officer J S. COLTON. Builoino Engineer LESTER C HUSTEO. FiRC Ch, R. H. BOCKHACKER. POLICE Ci->EF JOHN B MOORE. Administrative Officer HASKINS ft SELLS. AUDITORS Vkrnon r>8, California February 13, 1962 IN REPLY REFER TO: Dept, of Public Health SUBJECT: Laboratory Analysis of "MAPINITE" Aluminum Company of America 5151 Alcoa Avenue Vernon 58, California PLAINTIFF'S | EXHIBIT I AL-332 Attention: Mr. Frank Regehr Safety Director Gentlemen: During the "marinite" study we made on January 12, 1962, a sample was retained and submitted to the California Department of Public Health Air and Industrial Hygiene Laboratory for analysis. The results of the analysis are as follows: Quartz - not detected ( less than 5Z) Dlatomite - approximately 57. Asbestos - approximately 507. (clinochrysotile) Inorganic Filler - approximately 407. The quartz content and identification of asbestos species were determined by x-ray diffraction methods. Composition of other materials were based on microscopic estimate. In view of the above analysis, we recommend that a Threshold Limit Value of 5 million particles per cubic foot of air be used when designing controls and when making studies of potential exposures to this material. This value is based on the asbestos content. If you have any questions in regard to this report, please ARCH 19183 err Of.VERNON CALIFORNIA Aluminum Company cf America 5151 Alcoa Avenue Vernon 58, California February 13, 1962 2- - _- IN REPLY REFER TO Depc. of Public Health feel free to contact us for additional information. Very truly yours, C. . Nemethi, M.D. Health Officer LSH:lv. Dep. Dir. of Sanitation ARCH 19184