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r OPERATING PROCEDURE HS-501 <br /> 501. 0 PERSONNEL DECONTAMINATION <br /> 501. 1 PURPOSE <br /> Personnel engaged in investigations of sites for <br /> hazardous materials can become contaminated in several ways, <br /> including being splashed with liquid chemical products or <br /> contaminated water while drilling, developing, testing, and <br /> sampling wells; handling chemical wastes, contaminated soil or <br /> water, or contaminated equipment; walking on contaminated soil or <br /> through contaminated surface water; and contact with chemical <br /> vapors, dusts, fumes, and mists. Although protective clothing <br /> helps prevent the wearer from becoming contaminated, contamination <br /> can occur. Decontamination reduces dermal exposure time. It also <br /> i <br /> prevents hazardous materials from being transferred from protective <br /> `. clothing to wearer and to clean areas where unprotected individuals <br /> can be exposed. <br /> Decontamination consists of removing contaminated <br /> clothing and washing the skin to remove contaminants. How <br /> extensive the decontamination process must be depends primarily on <br /> the types of contaminants and the nature of on-site activities <br /> planned. As the toxicity of the contaminants and the magnitude of <br /> potential contamination of personnel increases, the decontamination <br /> process becomes increasingly more extensive and thorough. This <br /> operating procedure describes decontamination guidelines. <br /> Procedures for field operations must be developed on a site-by-site <br /> basis. <br /> HS-501-1 November 1990 <br />