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2.4 Site Control Site control procedures must be implemented before the start of site tasks to control worker exposures to hazardous substances. A Vicinity Map that shows the site location is included as Figure 1. A Site Plan with proposed sampling locations is included as Figure 2. Changes may be made to the site map by the SSO, as needed, based on site conditions. The site map should be posted in the work area and/or field notebook. This site control program is designed to reduce the spread of hazardous substances from contaminated areas to clean areas, to identify and isolate contaminated areas of the site, to facilitate emergency evacuation and medical care, to prevent unauthorized entry to the site, and to deter vandalism and theft. The Site Safety Officer is responsible for evaluating site conditions and for verifying that the site control program functions effectively. The site control program will be updated regularly to reflect current site conditions,work operations,and procedures. 2.2.1 Site Access Access to the site shall be controlled using the following method(s): ® Security fence ❑ Temporary barricades and/or warning tape ❑ Sign in/Sign out log ❑ Guard ❑ Identification badges ❑ Other: Onsite Manager 2.2.2 Work Zones Restricted work zones may be established to limit the spread of hazardous substances (when applicable) by workers from potentially affected areas to non-affected areas. The exact location and extent of the work zones will be modified as necessary as site investigation information becomes available. Delineation of work zones is as follows: • Exclusion Zone: The Exclusion Zone is the area where the potential for exposure to hazards and contact with hazardous materials could occur. The zone may be marked by caution tape. Personnel working within the Exclusion Zone will be expected to follow protective measures as prescribed by the SSO. • Contamination Reduction Zone: The Contamination Reduction Zone is a transition area between the potentially affected areas/materials and assumed non-affected areas/materials. Decontamination of personnel and equipment, if necessary, shall be conducted in this area to reduce the probability of contamination transfer to a non-affected area. The Contamination Reduction Zone shall be situated upwind of the Exclusion Zone. • Support Zone: The Support Zone is the area, outside the Exclusion and Contamination Reduction Zone, where administrative and other project support functions are performed. The Support Zone shall be situated upwind of the Contamination Reduction Zone and/or the Exclusion Zone. 10