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4.3 Site Control: Work Zones <br /> Work zones will be established in order to: (1)delineate high-traffic locations, (2) identify hazardous locations <br /> and(3) contain contamination within the smallest area possible. Employees entering the work zone must wear <br /> the proper personal protective equipment for that area. Work and support areas will be established based on <br /> ambient air data, necessary security measures, and site-specific conditions. <br /> 4.4 Decontamination Procedures <br /> Operations conducted at this site have the potential to contaminate field equipment and personal protective <br /> equipment. To prevent the transfer of contamination to vehicles, administrative offices and personnel, the <br /> procedures presented in Table 4-4 must be followed. <br /> TABLE 4-4 <br /> DECONTAMINATION PROCEDURE <br /> Item Examples Procedure <br /> Field Equipment Bailers, interface probes, hand • Decontaminate with a <br /> tools, drill augers and solution of detergent <br /> miscellaneous sampling and water or alcohol; <br /> equipment rinse with water prior <br /> to leaving the site. <br /> • Protect from exposure <br /> by covering with <br /> disposable covers such . <br /> as plastic to minimize <br /> required <br /> decontamination <br /> activities. <br /> Disposable PPE Tyvek suits"'inner nitrile gloves, • Dispose of according to <br /> respirator cartridges the requirements of the <br /> client and state and <br /> federal agencies. <br /> Non-Disposable PPE Respirators • Wipe out respirator <br /> with disinfecting pad <br /> prior to donning. <br /> • Decontaminate on site. <br /> at the close of each day <br /> with a solution of an i <br /> approved sanitizing <br /> agent and water. <br /> 13 <br /> I <br /> e <br />