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- --_�gtL_ra' sear -; ��r... �s•.e,_ ,r.m— - _ .diff <br /> NL — — <br /> .r tr <br /> wrs _--•' �- e�"' _ <br /> Site Safety Plan <br /> ARCO Station No. 548, Stockton, Cal.,, -, December 17, 1990 <br /> AGS 30004-3S <br /> POSSIBLE EXPLOSIVE ATMOSPHERES <br /> Gasoline has a flammable range from approyimately 1.4 to 7.6 percent in air. One percent <br /> ® in air is equivalent to 10,000 ppm; thus the lower explosive limit (LEL) is 14,000 <br /> p <br /> Normally explosive Ievels may be reached in tanks, pits, or other confined spaces. Any <br /> area suspected of containing potentially explosive levels of gasoline will be evaluated with <br /> an intrinsically safe or explosion-proof combustible gas indicator (CGI). Personnel <br /> response will be based on the following action levels from CGI readings; <br /> - Less than 10 then . Continue activities and <br /> percent of LEI.° monitoring <br /> " 10 to 25 percent then Continue monitoring <br /> of LEL with extreme caution as <br /> }iigher levels are <br /> z <br /> encountered <br /> k - Greater than 25 then <br /> E <br /> percent of LEL xplosion hazard. <br /> Cease activities and <br /> vacate area immediately <br /> ° CGI readings in percent of lower explosive limit <br /> If an explosion potential is present onsite beyond 25 percent of the LEL then all Applied <br /> GeoSystems' personnel and subcontractors must immediately withdraw from the site. The <br /> hazard potential will be evaluated by Applied Geo <br /> action will be assessed. Systems' management and a plan of <br /> DECONTAMINATION PROCEDURES <br /> Y�► Drilling equipment.and personal protective equipmentwill undergo gross decontamination <br /> onsite: This gross decontamination will include washing contamin"a' me <br /> ted equipment with a <br /> trisodiumhos hate <br /> P P ('TSP) solution. Steam-cleaning is an acceptable alternatillt% <br /> EMERGENCY RESPONSE PROCEDURES <br /> In the event of a fire, explosion, or property damage, the, nearest Applied GeoSystems_ <br /> Branch arjd_the_Administrative Office will be immediately notified If necessary, local fire <br /> or response,agencies will be called. <br /> . 13 <br /> .4itrf�/i�a� C�►ev�ysteni�e <br /> momi.110=11 mom <br />