Laserfiche WebLink
Air Monitoring Summary and Action Levels <br /> Organic Vapors <br /> PID Reading in Breathing Zone (ppm) Action <br /> 0-1 ppm above background' Continue monitoring <br /> Continue monitoring, if applicable initiate <br /> >1-5 ppm sustained 60 seconds additional collection of benzene/vinyl chloride <br /> using colorimetric tubes. <br /> <5 ppm and no presence of benzene/vinyl <br /> Continue Monitoring, ventilate space <br /> chloride <br /> > 5 ppm - < 25 ppm and no presence of Ventilate space until PID reads < 5 ppm. If< 5 <br /> benzene/vinyl chloride ppm cannot be achieved, upgrade to Level C2. <br /> > 25 ppm Ventilate space and evacuate area. <br /> Background concentrations should be established at the beginning of each work day. It may be necessary to re-establish <br /> background concentrations and ambient conditions vary through the day. <br /> 2 Measured air concentrations of known organic vapors will be reduced by the respirator to one half of the PEL or lower,and <br /> the individual and combined compound concentrations shall be within the service limit of the respirator cartridge. <br /> Air Monitoring Summary and Action <br /> Oxygen <br /> 02 Reading in Breathing Zone (%)' Action <br /> 20.9% 02 Oxygen level normal <br /> Oxygen deficient <br /> < 19.5% Oz Interrupt task/Evacuate area <br /> >23.5% 02 Oxygen enriched <br /> Interrupt task/Evacuate area <br /> Action levels based on USEPA Standard Operating Safety Guides;Table 5-1,Atmospheric Hazard Action Guidelines may <br /> be further restricted based on the CHSD's professional judgment and experience. <br /> MonitoringAir . Action <br /> Carbon • • . <br /> CO Reading in Breathing Zone (ppm)' Action <br /> Inspect exhaust system for leaks or other sources <br /> <12.5 ppm of CO. Monitor initially and every 15 minutes <br /> during use of CO-generating equipment. <br /> 12.5-25 ppm <br /> Ventilate area. Monitor continuously and record <br /> measurements. Contact PM. <br /> >25 ppm Cease Field Operations. Ventilate area. <br /> ' Based upon the American Conference of Governmental Industrial Hygienists(ACGIH)Threshold Limit Value(TLV)of 25 <br /> ppm as an 8-hour time weighted average(TWA)and Cal/OSHA's Permissible Exposure Limit(PEL)of 25 ppm as an 8- <br /> hour TWA concentration. <br /> 5175.0001S102/HSP Site-Specific Health and Safety Plan I ROUX 129 <br />