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Polychlorinated Biphenyl (PCB) is mixtures of synthetic organic chemicals that have the same basic chemical structure and similar physical properties ranging from oily liquids to waxy solids. The Occupational Safety and Health AdminIstration (OSHA) permissible exposure limit(PEL) is a time-weighted average (TWA) airborne concentration of 1,000 micrograms per cubic meter(pg/m3) for PCBs containing 42% chlorine (average molecular formula Of C12H7C13). The PEL for PCBs with 54% chlorine and an average molecular formula Of C12H5C15 is 500 pg/m3. Both standards encompass all physical forms of these compounds: aerosols, vapor, mist, sprays, and PCB laden dust particles. OSHA recognizes that PCBs are absorbed through intact skin; therefore, both dermal and inhalation exposure routes should be evaluated by an industrial hygienist. The National Institute for Occupational Safety and Health (NIOSH) recommends a 10 hour TWA of 1 pg/m3 based on the minimum reliable detectable concentration and the potential carcinogenicity of PCBs. NIOSH also recommends that gill workplace exposures be reduced to the lowest feasible level. Due to their not-flammability, chemical stability, high boiling point and electrical insulating props rties, PCBs were used in hundreds of industrial and commercial applications includ ng electrical, heat transfer, and hydraulic equipment; as plasticizers in paints, plastics and rubber products; in pigments, dyes and carbonless copy paper and man} other applications. More than 1.5 billion pounds of PCBs were manufactured in the L nited States prior to cessation of production in 1977. Concern over the toxicity and persistence in the environment of Polychlorinated Biphenyls (PCBs) led Congress it 1976 to enact§6(e) of the Toxic Substances Control Act (TSCA)that included among other things, prohibitions on the manufacture, processing, and distribution in commerce of PCBs. This substance can be absorbed into the body by inhalation of its aerosol, absorption through the skin and by ingestion. Repeated or prolonged contact with skin may cause dermatitis and the substance may have effects on the liver. Asbestos is a naturally occurring group of fibrous minerals that can only be identified under a microscope. There are several types of these flexible, firE-resistant fibers. In the past, asbestos was added to a variety of products to strengthen them and provide heat insulation and fire resistance. In most products, asbestos is combined with a binding material so that it is not readily released into the air. If asbestos fibers should become airborne and are inhaled, they can remain in the lungs for a long period of time, producing the risk for severe health prole lems that do not appear until many years later. Asbestos fibers can have serious Effects on health if inhaled. There is no known safe exposure level to asbestos. increased exposure to asbestos will increase the risk of developing an asbestos-related disease. The amount of time between exposure to asbestos and the first signs of disease can be as much as 30 years. It is known that smokers exposed to asbestos have a much greater chance of developing lung cancer than just from smoking alone. Asbestos can cause asbestosis, a scarring of the lungs that lead.,;to breathing problems and heart failure. Workers who manufacture or use asbestos products and have high Lodi City Landfill 16 January 2012 Site Safety and Health Plan