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40 in <br />IYA <br />41 AL%.T1M[-ww li ORFm <br />BLAST WARNING SIGNALS <br />PRIOR TO BLAST <br />5 LONG SIREN SIGNALS AT 5 MINUTES <br />20 SHORT SIREN SIGNALS AT 3 MINUTES <br />STEADY ELECTRIC SIREN AT 2 MINUTES <br />TONE CHANGE ELECTRIC SIREN AT 30 SECONDS <br />ALL CLEAR <br />ONE LONG SIREN SIGNAL OF 20 SECONDS DURATION <br />AFTER INSPECTION OF BLAST AREA <br />1 91 <br />I <br />Orange Background With Black Lettering <br />POSTED AT ALL PUBLIC ACCESSES <br />20" <br />30" <br />KEEP OUT <br />1411 STOP <br />BLASTING <br />AREA <br />DANGER <br />BLASTING <br />- AREA - <br />POSTED ON ALL MINE ROADS <br />WITHIN 50' OF BLASTING AREA <br />FIGURE 3.1-2 BLASTING SIGNS <br />3-5 <br />r - <br />LO <br />Cr? <br />Revision: <br />approved: <br />