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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 3 <br />Distribution: H:Quarry:Safety:Procedures_SOP <br />Subject: Drill And Blasting SOP <br /> <br /> <br />● During the planned day of a blast, the quarry manager/supervisor will confirm at the beginning of the shift <br />that the blast pattern will be loaded and shot at approx. 12:30 or lunchtime. <br />● If the contractor is unable to detonate the blast at 12:30 another agreed time will be put into place. <br />● Approximately one hour before detonation of a blast, the quarry manager/supervisor will ask what road <br />blocks will be needed and at what time to determine the safety zone. <br />● Once agreed on what road blocks will be needed the quarry manager/supervisor will assign personnel to <br />road blocks <br />● Quarry personnel will communicate to the contractor that they have agreed on the road blocks in place and <br />they are blocked off. <br />● Road block personnel will inform contractor when and what equipment leaves the area. <br />● Quarry personnel will follow and answer Lead Blasters commands. <br />● Once the contactor lead blaster calls for all clear after the blast, then the quarry operators may leave road <br />block assignments and quarry activity may resume. <br />Misfires: <br /> <br />● In case of a misfire or other site hazard the all clear signal is not to be sounded <br />● If a misfire is encountered, a minimum wait period of 15 minutes will be enforced for NONEL initiation systems and <br />30 minutes for electronic initiation systems prior to investigating the misfire <br />● The blast security area will be maintained with warning signs posted and adjusted for the hazard. <br />