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SFJVF BY=FIWCON ASSOCIATES :12 ]moi 14 11:1} : FMCON SACRAMI7VT0-+ 1.2094640138,# 3t 7 <br /> sampling. To a lesser extent,absorption of these compounds through unprotected skin could also <br /> bocomc an exposure pathway.It is anticipated that petroleum oils and associated compounds Emy <br /> be encountered during drilling and sampling. Fetroleurn oils are consklered non-volatile and <br /> should not be of practical concern for worker exposure considerations. Tke primary physiological <br /> effect associated with petroleum ail exposure would be dermatitis due to defatting of the skin. <br /> Aromatic compounds may be,associatosd with the petroleum oil. <br /> Exposure Mon1toring Plan <br /> Air quality surveys will be performed dunng drilling and sampling activities so that airborne <br /> concentrations of co intauhinants renin below prexcribed action kvcls. The minixnurn f tqueacy <br /> for air quality surreys. will be. once every 30 minutes. The On-site Safety Coordinator will <br /> perform air monimring with a portable photoianization detector. Results of the survey will be <br /> used to assess the level of respiratory protection required. If total organic vapor levels exceed 1 <br /> parts per million in the general breathing zone,the-011-Site Safety Coordinator will require the use <br /> of air purifying respirators. If organic vapor levels exceed S parts per million, all personnel will <br /> immediately stop operations and move to a suitable upwind location. After relocation to a safe <br /> area is complete.,the On-site Safety Coordinator will iaidatu;downwind pedmeter rnoWtoring and, <br /> if necessary,warn unprotected personnel. <br /> Equipment used to moritor the site under investigation for airborne levels of vapors and gases <br /> will be calibrated daily before use. A photoionisation detector will be calibrated with a S part per <br /> rnillim standard of benzene vapor or a 100 part per million isobntylene standard. This instrument <br /> will be zeroed in a owtaminant fere atmosphere inxnediaWy before use. Airborne rneasu rer=ts <br /> Of organic gases and vapors n= ded during field ativities will be documented in a waterproof <br /> field notebook by the On-site Safety Coordinator. <br /> Persond Protective Equipmad <br /> The following prnteclive equiprrnnt will be required during drilling and sampling activities: <br /> • air purifying respirators with organic vapor and acid gas cartridges <br /> * safety glasses or goggles <br /> • vinyl stoel-toe boots <br /> latex in=gloves <br /> 'SOI S °�" Rnv.O bluer 13,19% <br /> - 2' <br />