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"111 ..,, , "..,11 fi <br />All electrical lines, piping, and like items known to be associated with the tank shall be <br />isolated or disconnected. <br />If at anytime during the excavation, the lower explosive limit of the atmosphere around <br />the tank exceeds 25 percent, all work will cease and proper mitigation procedures <br />initiated. <br />VNIEW411100404 <br />r, • NOT ENTER TANK SUMP (S) FORREASON.• . •, .riate control <br />fencingmeasures, such as and confined space supervision,be <br />employed prior to any worker entering into the tanks sumps. <br />• • •, - - • • <br />Any and all soil removal and disposal is the sole responsibility of the client, and all soil samples <br />will be analyzed per clients' requirements. <br />1. Lock -out / Tag -out procedures (Energy Isolation) <br />Lock -out procedures must be followed during the cleaning, servicing, or adjusting of <br />machinery or electrical equipment. LOTO procedures shall be implemented as required <br />by applicable Federal, State, or Property Owner rules and regulations. <br />100% fall protection shall be employed for all work at heights. Fall protection shall <br />include scaffolds, aerial lifts, and personnel hoists. Also guardrails, toe boards, and other <br />primary systems may be implemented. In addition, provisions for secondary fall protection <br />(full-body harness and fall arrest systems) shall be used for employees working or traveling <br />more than six (6) feet above a lower level and are exposed to an imminent fall hazard (this <br />includes working conditions hat present hazards such as leading edge, open holes, and <br />skylights on building rooftops and/or other elevated towers/structures). All fall protection <br />devices used shall be manufactured in accordance with an acceptable recognized standard <br />utilizing a design approved by a professional engineer. No job —built devices or equipment are <br />allowed. <br />5/21/09 revision 5 18 <br />