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5. The SSO with the assistance <br />shall be responsible for the <br />operations after an incident <br />under control <br />Aff1*14011-14 <br />of the Project Manager <br />decision to resume <br />has been brought <br />In the event that combustible gas indicator readings anywhere <br />at the site exceed 10% LEL, work will be suspended, <br />monitoring will be continued as necessary to isolate the area <br />and some or all of the following engineering controls will be <br />implemented: <br />1. Contaminated soils will be sprayed down (if necessary) <br />with deodorizing chemicals to reduce vaporization of <br />volatile organic compounds (VOCs) or permeation of <br />other gases <br />2. Vapors from pooled petroleum produce will be suppressed <br />(if necessary by spraying with foam or an appropriate <br />chemical suppressant <br />3. Portions of the stockpiled soil will be covered with <br />plastic sheeting <br />4. Air movers will be used to ventilate the areas of <br />concentration to below 10% LEL <br />5. Wells emitting excessive concentrations will be <br />ventilated, capped, or shut-in as necessary <br />13.2 axis Atmosphere <br />In the event that airborne concentrations of the chemicals of <br />concern exceed the TLV for the chemical, the above <br />engineering control measures will be implemented to reduce <br />concentrations to or below the TLVs, if practical. If such <br />reduction is not possible, PPE will be used to limit worker <br />exposure during operations. <br />In the event airborne concentrations of the chemicals exceed <br />2 times the TLV, then work will be suspended and appropriate <br />engineering controls will be implemented to reduce <br />concentrations to or below 2 times the TLV. <br />11 <br />