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Site Health and Safety Plan <br />19133 East Liberty Road, Clements, California <br />August 16, 2022 (Revised June 27, 2023) <br />Page 15 <br /> <br />Sharp Environmental Technologies, Inc. <br />verify effectiveness of the isolation. Only employees who perform the lockout/tag out procedure may <br />remove their own tags/locks. Workers will be thoroughly trained prior to initiating this procedure. <br />5.5.4 Explosion and Fire <br />The presence of flammable gases or vapors may cause a fire or explosion. Potential causes of explosion <br />and fire include: <br />• Chemical reactions; <br />• Ignition of explosive or flammable chemicals; and, <br />• Sudden release of materials under pressure. <br />Any site activities that may involve the presence of flammable gases or vapors will require continuous <br />air monitoring using a four-gas direct reading instrument. All potential ignition sources will be kept <br />away from an explosive or flammable environment, and only non-sparking, explosion proof equipment <br />will be used. In addition, safe practices will be followed when performing any task that might result in <br />the agitation or release of chemicals. Open flame or tobacco smoking will be strictly prohibited at the <br />sites. All flammable liquids will be stored in approved containers and the quantities will be limited to <br />one-day use. <br /> If the four-gas instrument exceeds 10% of the LEL, all site activities will cease, equipment will be shut <br />down and site personnel will be evacuated. In the event of a fire, work will cease, the area will be <br />evacuated, and the local fire response team immediately will be notified. Only trained, experienced fire <br />fighters will be allowed to extinguish substantial fires at the sites. Site personnel will not attempt to <br />fight fires, unless properly trained and equipped to do so. At least one fully charged ABC dry chemical <br />fire extinguisher will be readily available for use during all scheduled activities at the sites. <br />5.5.5 Slips, Trips, and Falls <br />These types of hazard result from unleveled or slippery surfaces, high-risk positioning, and the <br />presence of hard-to-see objects (e.g., rope, cords, cables, above-ground piping, hills etc.) in areas where <br />workers walk. Appropriate warning signs will be posted wherever this danger has been identified. <br />Workers will take extra caution while working on steep slopes and in high-risk positions. <br />5.5.6 Illumination <br />If work activities occur before sunrise or after sunset, adequate lighting will be provided in each work <br />area to meet the requirements of Title 8 CCR section 5192 (m). <br />5.5.7 Cold Stress <br />Workers performing activities during winter and spring months may encounter conditions such as <br />extremely cold temperatures, snow and ice, which can make field activities difficult. Adequate cold <br />weather gear, especially head and footwear, will be required under these conditions. Workers should <br />be aware of signs and symptoms of hypothermia and frostbite, as well as first aid for these conditions. <br />These signs and symptoms are summarized in the table below.