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Ground Zero Analysis, Inc. <br />SITE SAFETY PLAN <br />❑ Confined Space Entry (follow GZA'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 in all site <br />personnel's medical file, and maintained in the job file. All sampling instruments will be calibrated per the <br />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 />Monitoring <br />Equipment <br />Hazard <br />Monitored <br />Sample <br />Location <br />Sample <br />Frequency <br />Action <br />Level <br />Action <br />PID <br />Organic Vapors <br />20 ppm* <br />Level c wn/2 or <br />full face respirator <br />PID <br />Organic Vapors <br />> 200 ppm <br />Evacuate Site <br />* Benzene is not specifically monitored for with a OVM so any vapor reading at 20 ppm must require 1/2 face <br />respirator. <br />Identify sample locations on site map. <br />PAGE 8 <br />