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Project No. 014-94276 <br /> 8.0 <br /> Page No. 17 <br /> ORING PROGRAM <br /> T <br /> i <br /> Personal exposure to ambient levels of airborne hazards and noise will be <br /> monitored and/or <br /> observed to insure that personnel exposures do not exceed acceptable limits and for the selection of <br /> protective equipment. Personal monitoring will be rando 1 performed using personal Y F g P air pumps and <br /> appropriate sampling tubes. Previous data from similar jos may be used to determine PPE levels. On <br /> all jobs, airborne contamination and downhole hydrocarbon vapor concentrations will be measured <br /> primarily by the use of a direct reading instrument such as a photoionization detector. If concentrations <br /> approach established levels, DragerO detector tubes will be used to determine theP resence and <br /> concentration of benzene. Site visits/inspections may be conducted by the Krazan & Associates Safety <br /> Officer to insure compliance with this plan. <br /> 8.1 Motoionization Detector <br /> During this investigation, the ambient air, drilling returns, soil samples, and boreholes will be <br /> screened with a calibrated H-nu® brand, portable photoiordzation detector (PID). The PID is a direct <br /> reading real-time analyzer that is capable of detecting most of the volatile hydrocarbons constituents present <br /> r in a vapor phase. The PID to be used for this investigation uses a 10.2 electron volt lamp and is calibrated <br /> using an iso-butylene calibration gas. Iso-butylene is a relatively safe calibration gas similar in ionization <br /> potential to benzene the carcinogen of primary concern present in petroleumproducts). <br /> i <br /> 8.2 Drager®Detector Tubes <br /> Drager® detector tubes will be used to determine airborne concentrations of benzene in the <br /> breathing zone during this investigation. A member of the field team will take detector tube readings if <br /> high FID measurements so warrant. <br /> Readings will be taken in the area where the field teain members are working. Drager®##6728561 <br /> benzene detector tubes will be used (measurement range 0. -10 ppmv). The detector tube pump will be <br /> I <br /> inspected for proper operation prior to field operations. <br /> 9.0 SAFETY AND HEALTH TRAINING <br /> II..� <br /> All field personnel will be trained in methods of safely conducting field activities. This plan is <br /> r intended to provide additional site specific information to accomplish this goal. It will be the responsibility <br /> KRAZAN & ASSOCIATES, INC. <br /> Offices Serving the Western Lnited States 94276.HSP <br />