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SITE HEALTH & SAFETY PLAN OrEOM TRIX <br /> Task Instrument Frequency <br /> LN 1. Advance soil boring and collect groundwater sample I PID/CGM Every 5 feet of soil boring <br /> 6.1 ACTION LEVELS <br /> Listed below are OSHA permissible exposure limits (PELs) and ACGIH recommended threshold <br /> limit values (TLVs) for the chemicals of concern at the site. <br /> Chemical Cal-OSHA PEL(ppm) ACGIH TLV(ppm) <br /> Benzene 1 0.5 <br /> Toluene 50 50 <br /> Ethylbenzene 100 100 <br /> Xylenes 100 100 <br /> MtBE NIA 40 <br /> 6& State of California Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition 65) <br /> information for the site: (Applicable warning is checked) <br /> ✓ WARNING: This area contains a chemical known to the State of California to cause <br /> cancer. <br /> Lo ✓ WARNING: This area contains a chemical known to the State of California to cause <br /> birth defects or other reproductive harm. <br /> Additional information may be obtained from Mary Sue Philp at(510) 663-4100. <br /> Respirators shall be worn when air monitoring indicates that concentrations exceed the following <br /> action levels: <br /> Wear respirator if PID reads >_ 10 ppm(sustained reading in the breathing zone) <br /> La <br /> Stop work if PID reads > 50 ppm(sustained reading in the breathing zone) <br /> LN An explosion hazard shall be assumed to exist where air concentrations exceed the following <br /> lower explosion levels (LELs). <br /> Stop work and notify the PM or PHSO if CGM reads? 10%LEL. <br /> Evacuate area and notify appropriate emergency services if CGM reads >25% LEL. <br /> 7.0 PERSONAL PROTECTIVE EQUIPMENT <br /> The following personal protective equipment(PPE) will be used as specified below. <br /> I:IPROJEC n6508.000%document16508-04.doc 12 <br />