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Js® _' .Yi V ..' c tl� � } ,iR IF . h 'C. <br /> k_y, <br /> + <br /> 509.12 FIRE SAPZTY <br /> fi <br /> 1. Fire extinguishers shall be kept on or near drill rigs <br /> for fighting small fires. <br /> 2. If methane is suspected in the area, a combustible gas <br /> instrument (CGI) shall be used to monitor the air near <br /> the borehole with all work to stop at 25 percent of the <br /> pa Lower Explosive Limit. <br /> a 3. Work shall stop during lightning storms. t <br /> f _ <br /> A <br /> i <br /> t <br /> e <br /> u <br /> C <br /> _ /H,�S2 <br /> J <br /> ..' HAS-PR0509 HS-509-7 November 1990 <br /> ens <br /> polo <br /> R�IRS7dYii <br />