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Health and Safety Plan <br />17 West Washington Street, Stockton, California 95202 <br />461803 <br /> <br /> Page 7 <br />6.0 AIR MONITORING PROCEDURES <br />Air monitoring for the presence of volatile organic compounds (VOCs) and will be conducted while <br />all field work is being undertaken. Air monitoring may necessitate using one or more monitoring <br />devices as listed in Table 8, particularly if gases, vapors, explosion hazards and/or oxygen <br />deficient atmospheres can occur and/or are expected. If a monitoring device will be utilized, the <br />corresponding device letter will be placed in the column labeled “Required Monitoring <br />Instrument” as noted in Table 9. <br />Table 8: Monitoring Devices Available <br />A PID (10.6 eV) H Summa Canister <br />B PID (11.7 eV) I Heat Stress Monitor <br />C FID J Air Sampling: mini-RAM pdr-1000 <br />D OVA K Air Sampling: <br />E CGI/LEL L Radiation Detector <br />F Colorimetric Indicator Tubes M Gas Multimeter <br />G Dust Monitoring N Other Device: <br /> <br />Table 9 lists the applicable Action Level in the appropriate box using 50% of the most restrictive <br />(lowest) PEL or TLV as the Trigger as presented in Appendix A or other recognized source. CVOCs <br />and particulates are the potential airborne hazards anticipated during the planned Site work. <br />Table 9: Required Monitoring Instrument <br />Required <br />Monitoring <br /> <br />If monitoring is <br />necessary to <br />identify that a risk <br />is at or above <br />acceptable limits <br />and/or is used in <br />controlling a risk <br />on site, document <br />the task and the <br />maximum <br />allowable <br />exposure or <br />trigger, and the <br />monitoring <br />instrument <br />required to be <br />used. <br />Constituent Task(s) Trigger <br />(Action Level) <br />Insert Monitoring <br />Instrument ‘Letter’ <br />identified in Table 8 <br />Oxygen <br />Carbon <br />Monoxide <br /> <br />H2S <br />C2S <br />CH4 <br />VOCs: Total 1 5 ppm A <br />Semi - VOCs: <br />Metals <br />Dusts <br />Others: <br />Others: <br />