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■VZ1 iNC <br /> Exclusion Zone or "Hot" Zone <br /> The Exclusion Zone or "Hot" Zone shall be defined as follows <br /> 1 Wherever portable direct-reading air monitoring instruments register anything <br /> above the background readings established upwind off-site in uncontaminated <br /> areas <br /> 2 If portable direct-reading air monitoring instruments read background throughout <br /> the site, the exclusion zone shall be defined around the area(s) of known or <br /> suspected chemical contamination, or where drilling, excavation, soil sampling, <br /> or other invasive activity is to be performed <br /> Decontamination Zones <br /> The SSO shall establish a decontamination corridor adjacent to and upwind from identified <br /> exclusion zones The SSO shall set up both equipment and personnel decontamination areas <br /> outlined under "Decontamination Procedures" below <br /> Support Zone <br /> The SSO shall establish support zones upwind from the decontamination corridor where all <br /> portable direct-reading air monitoring instruments read background, at a distance of at least 20 <br /> meters from the exclusion zone <br /> i <br /> The support zone shall be established such that support personnel may observe all personnel <br /> in the exclusion zone at all times <br /> r� 082200/0 011 APPENDIX I <br /> 10 <br /> I <br />