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<br />Originating Department: QUARRY Classification: <br />Work Instruction/SOP <br />E Q H&S <br />Y Y Y <br />Date Issued: 8/1/22 Revision Date: 03/8/2023 Control Number: PD. HAC Number: <br />Prepared By: Jeffrey Hauser <br />Title: Quarry Supervisor <br />Approved By: Oscar Mancera <br />Title: Quarry Manager Page 2 <br />Distribution: H:Quarry:Safety:Procedures_SOP <br />Subject: Drill And Blasting SOP <br /> <br /> <br />● Drill Pattern with available equipment. <br />● Communicate any safety concerns to contractor during drilling and blasting operations. <br />● Communicate the needs of company to contractor along with estimated blast schedule. <br />● Provide personnel when available for road blocks. <br />● Assist in misfires. <br /> <br />Drilling: <br />● Quarry manager/supervisor will communicate what location needs to be laid out for a drill pattern. <br />● Work place exam will be conducted at beginning of each shift. <br />● Make sure pattern area is suitable for layout i.e. (prep floor, move berms). <br />● Receive pattern sheet from contractor once laid out. <br />● Operate drill to produce bore hole for blast to appropriate depth and size of hole. <br />● If on Full Face/limestone bench collect cutting samples for lab analyses. <br />● Remove drill from pattern once finished and place completed drill pattern sheet in appropriate drop box for <br />contractor. <br /> <br />Blasting: <br />● Once pattern is finished the quarry manager/supervisor will inform contractor pattern is ready to be loaded <br />and blasted.