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Ground Zero Analysis, Inc. <br /> SITE SAFETY PLAN <br /> ❑ Confined Space Entry (follow GZ4's Confined Space Entry Procedures) <br /> ❑ Other - explain hazard and mitigation <br /> EXPOSURE MONITORING <br /> All sample results will be recorded in the GZA exposure log. Log copies are filed in the job file, and <br /> in all site personnel's medical file, and maintained in the job file. All sampling instruments will be <br /> calibrated per the manufacturers instructions on a daily basis. <br /> *Note calibration gas and any unusual calibration settings in the "monitoring equipment" column. <br /> **Include monitoring for health hazards, explosion hazards, etc. <br /> IV onitor ng IHazarc! Sample Sample Action >Actiory <br /> Equiprttierlt Maritored' Location FrequbrtiCy <br /> FID/PID Organic Vapors Driller's area 20 ppm* Level C w/1/2 <br /> or full face <br /> respirator <br /> FID/PID Organic Vapors Driller's area X200 ppm Evacuate <br /> Site <br /> * Benzene is not specifically monitored for with a PID so any vapor reading at 20 ppm must require <br /> 1/2 face respirator. <br /> Identify sample locations on site map. <br /> Page 6 <br />