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ACTIVITY HAZARD ANALYSIS 01 DPT Page 4 of 8 <br />Activity: Direct-Push Drilling Analyzed By/Date: Reviewed By: <br />Principal Steps Potential Hazards Recommended Controls <br /> Heat Stress Monitoring (during ambient <br />temperatures exceeding 80°F) <br />Heat cramps, heat exhaustion, heat <br />stroke <br />Heat stress prevention and monitoring techniques, per <br />Section 8.2.1 of HASP <br />• Acclimate the body to the working environment. <br />• Drink cool water to replace body fluids <br />• Wear personal cooling devices in extreme <br />temperatures <br />• Take rest breaks in shade or air conditioning as <br />frequently as necessary to prevent personal distress <br />and heat-stress symptoms. <br />• Count pulse rate during a 30-second period as early as <br />possible in the rest break. If heart rate exceeds 110 <br />beats per minute at the beginning of the rest break, <br />shorten the next work cycle by one-third and keep the <br />rest break the same. If the heart rate still exceeds 110 <br />beats per minute at the next rest break, shorten the <br />following work cycle by one-third. <br /> Drilling operations; start up drill and perform Pressurized hydraulic lines could • Ensure that personnel are trained in use of drilling <br />drilling, rupture, causing release of hot hydraulic <br />fluid. Hot fluid could ignite if contact is <br />made with an engine. Hot fluid could <br />burn workers. Fluid could cause <br />environmental contamination, <br />equipment. Ensure that the operator has current <br />certifications to operate the equipment. Inspect all <br />hydraulic lines before placing rig in service. Any <br />damaged hoses or connections must be replaced <br />before unit is used. Immediately shut down equipment <br />if lines rupture. Ensure that first aid kit is readily <br />available to treat injured workers. Ensure that a 20-lb <br />dry chemical ABC fire extinguisher is readily available. <br />Ensure that a spill control kit is available at drilling <br />location. If rupture occurs, as quickly as possible, <br />berm the liquid to minimize the area over which the <br />liquid spreads. Ensure all pressurized lines have whip <br />checks. <br />Air hoses or hydraulic hoses under <br />pressure could suddenly release, whip, <br />and hit workers causing severe injury, <br />• Do not disconnect air hoses and compressors until <br />hose line has been bled. Visually inspect all <br />connection of any lines under pressure. Use safety <br />clamps to connect each side of connection to the other <br />if the connection breaks. [The safety clamps will keep <br />the hoses from whipping under the sudden release of <br />pressure.] Tie back or attach hoses wherever possible <br />to minimize the length of hose that could whip around <br />if there is a sudden release of pressure.