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7.9.2.4.3. if you detect situations outside the tank that could endanger those inside the <br /> tank, such as a vehicle idling nearby which could cause vapor problems or the vehicle <br /> could become an ignition hazard; <br /> 7.9.2.4.4. if you see uncontrolled hazards such as exposed energized conductors or <br /> leaking fluid lines; and/or , <br /> 7.9.2.4.5. if you can no longer perform your duties as an attendant. <br /> ,44L WA R N I N G <br /> During tank entry, authorized tank entrants must immediately evacuate a tank <br /> during any onsite tank refueling operations. Failure to evacuate could result in <br /> death or serious injury. <br /> 7.9.2.5. Assist with the authorized tank entrants' self-rescue from the tank as necessary. <br /> 7.9.2.6. Conduct emergency external-tank rescue if self-rescue fails using a retrieval <br /> system consisting of a tripod, rescue harness and lifeline. <br /> 7.9.2.6.1. Do not enter a tank for rescue operations. <br /> 7.9.2.6.2. Summon local emergency rescue services as necessary and according to the <br /> Site-Specific Safety Plan. <br /> 7.9.2.7. Cut and wet-out all necessary fiberglass outside the tank. Only the actual amount <br /> of material needed for the job is allowed inside the tank. The only exception is when <br /> completing the final wax coat. Quantities of up to one pint of wax coat may be brought into <br /> a tank. <br /> 7.9.3. Authorized Tank Entrant's Responsibilities <br /> 7.9.3.1. While wearing an approved respirator, verify atmospheric tests previously <br /> conducted from outside the tank. Look for pockets of product or foreign material inside the <br /> tank. Appendix E identifies specific sampling locations you should check. <br /> 7.9.3.2. Continuously monitor the atmosphere while inside the tank. If at any time <br /> atmospheric levels exceed the acceptable levels listed in Table 2, immediately evacuate <br /> the tank and determine the cause(s) for the unacceptable condition. Re-enter the tank only <br /> after atmospheric levels have returned to acceptable tank-entry levels condition. <br /> AgAbL <br /> WARN NG <br /> Note: Small amounts of residual vapor inside a tank may be detected. If vapor <br /> concentrations exceed 5 % LEL, immediately stop work and determine the reason. <br /> Immediately exit the tank if vapor concentrations start to approach (10% LEL). <br /> Failure to do so could result in death or serious injury. <br /> 31 <br />