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• If PID readings exceed 1,000 ppm in the OBZ for 15 minutes, Level B protection will <br /> be required. Personnel must leave the Site immediately and contact the Site Safety <br /> Officer or the Regional Health and Safety Manager for further instructions. <br /> • Respirator cartridges will be changed a minimum of once per day. This can be <br /> accomplished at the end of the work day during respirator decontamination. If odor <br /> breakthrough is detected while wearing the respirator or breathing becomes difficult, <br /> the cartridge will be changed immediately. <br /> 5.3 Action Levels/Level of Personal Protection Equipment(PPE) <br /> PID LEVEL D LEVEL C LEVEL B/Reassess <br /> Instrument <100 units for 15 1,000 units for 15 >1.000 units for 15 <br /> Reading minutes minutes minutes <br /> 5.4 PPE <br /> Modified Level D is the minimum acceptable level for this Site. Modified Level D provides <br /> minimal dermal protection. Respiratory protection is optional unless air monitoring data <br /> indicates otherwise. <br /> Modified Level D includes: <br /> - coveralls/work uniform <br /> - Tyvek(optional) <br /> - Nitrile, butyl-rubber or Viton gloves with disposable nitrile liner(optional) <br /> - boots/shoes, leather or chemical resistant, with steel shank and approved toe <br /> protection <br /> - approved safety glasses or chemical splash goggles if the potential for splash exists <br /> - hard hat <br /> - reflective traffic vest (if traffic, construction, or other related activities are present) <br /> - hearing protection (as appropriate) <br /> - respiratory protection (as necessary) <br /> B. Additional equipment upgrade: <br /> 1. Protocols for upgrading <br /> Once air monitoring data are complete and results are tabulated on the initial Site <br /> entry, the Site Safety Officer and/or Regional Health and Safety Officer will <br /> determine whether changes in PPE are needed. <br /> 3028-03/114700.4766.023/JUL-73'03 14 <br />