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Project Hazard Identification, Risk Assessment and Control (HIRAC) Form <br />34 <br />DRILLING ACTIVITIES <br />Potential <br />Hazards <br />Initial Risk <br />Ranking <br />(R/Y/G) <br />Hazard Controls <br />(including PPE requirements) <br />Applicable Policy or <br />Procedures <br />Residual Risk <br />Ranking (R/Y/G) <br />• Review hazardous properties of site contaminants with <br />workers before operations begin. <br />• Maintain applicable Safety Data Sheets on site for <br />hazardous chemicals that employees may come into contact <br />with. <br />• Apply water spray if dust is generated during drilling or <br />sampling activities. <br />Diesel exhaust <br /> <br />(Inhalation hazard) <br />Y • Work upwind of drill rig engine’s exhaust stack. <br />• If working indoors, monitor carbon monoxide levels and <br />implement ventilation methods as necessary to control CO <br />concentrations to < 25 ppm. <br />HSE Manual, Section 35 – <br />Chemical and Biological <br />Hazards <br />G <br /> <br /> <br /> <br /> <br /> <br />