Document pp1mdvjndNbGnNeqQxnxeX1z7

App. ^d Environmental Services "Consultants In Wastes Management and Environmental Control" ASBESTOS MGMT AIR POLLUTION STUDIES HAZARDOUS WASTE/RCRA COMPLIANCE ENVIRONMENTAL AUDITS 716 LA CRUZ EL PASO, TEXAS 79902 (915)533-1147 August 27, 1987 Sal Garcia ^ Darla Environmental SpecSTists, 8411 Lockheed Suite 1 ___ El Paso, Texas 79925 ^ Inc Dear Sal: ; Please -find enclosed Ithe results of- the air sampling performed at the Chevron 2rbb August 21, 1987. The following samples were analysed forSsilica dust using standard methods of analysis. The reason why^he results took so long was because the moisture captured by oiir samples created an error during final computations. In oEBer to remove this moisture we had to desiccate our samples and^analyse them under control environment. The next samples should not take as long since we now know the technique. The results oTI the tests are far below any available ambient air standard known, yet we could not find a standard for personnel exposure. I advise you to contact the Chevron safety office and inquire on their adopted standard for personnel exposure. If you have any1questions regarding this matter please do not hesitate to call. .72 President Chevron BB 015620