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ACTION LEVELS for Photoionization Detector <br /> Analyzer Location Duration Action Personal Protective <br /> Reading* E ui ment <br /> <15 ppm Point of <br /> Operations/Release ----- Continued periodic Minimum site <br /> Source oint monitoring ensemble <br /> >15 ppm Point of Minimum Site <br /> (1St Action Operations/Release > 1 Monitor OBZ, don Ensemble, PLUS <br /> Level) Source point minute protective clothing, Chemical-resistant <br /> establish work boot covers or steel- <br /> zones as described toed boots, Tyvek <br /> in Section 8 1 coverallst, Nrtnle <br /> Outer Gloves, and <br /> Nitnle Inner <br /> (surgical) loves <br /> <15 ppm OBZ ---- No respirators As for 1 Action <br /> required Level <br /> >15 ppm OBZ > 1 Provide respiratory <br /> (2nd Action minute protection, establish <br />' LeveI) decon area as Add half-face <br /> described In 9 0 respirators with <br /> organic vapor <br /> carted es <br /> >75 ppm OBZ >1 minute Increase respiratory Replace '/z-face <br /> (3rd Action protection respirators with full- <br /> Level) face respirators with <br /> organic vapor <br /> carted es <br /> >150 ppm OBZ >1 minute Stop work, move <br /> OR upwind while <br /> >300 ppm OBZ instantane vapors dissipate If <br /> ous elevated levels As specified by DSO <br /> remain, cover <br /> boring and cuttings, <br /> evacuate upwind <br /> and notify DSO or - <br /> *above background readings PM (OBZ—Operator's Breathing Zone) <br /> $substitute poly-coated Tyvek*if there is potential for contact with liquids(groundwater,mud,etc) <br /> ACTON LEVELS (for r the Combustible Gas Indicator <br /> LEL Readin Location Action <br />' <10% LEL Point of Operations/General Continue site operations and <br /> Work Area continue periodic monitoring <br /> 10-20% LEL Point of Operations/General Continue site operations and <br /> Work Area verforrii continuous momtonn <br /> >20% LEL Point of Operations/General Shutdown operations, evaluate <br /> Work Area source, ventilate work area <br /> LEL=Lower Explosive Limit <br /> For additional,,,formation on Acrton Levels and!herr implementation,see Sections 6.0 and 7 0 <br /> AMFOREST 21 7 4 <br />