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FLAMMABLE/EXPLOSIVE ATMOSPHERE <br /> Because many of the constituents identified in this project are flammable, tanks and <br /> pipeline to be removed shay contain, or generate upon handling, flammable/explosive <br /> atmosphere containing ten percent or greater of the lower flammable limit relative to <br /> the calibration gas of the air monitoring instrument used to sample such atmospheres <br /> (10%LEL)shall be considered a flammable and explosive atmosphere. In the event a <br /> flammabletexplosive atmosphere is identified,all sources shall be eliminated, all <br /> employees removed form the work area and the location ventilated. In the case of <br /> tanks the interior shall be inserted with carbon dioxide(i.e. dry ice)prior to any <br /> additional handling. Care shall be taken to keep all field personal upwind during all tank <br /> inserting operations. <br /> Warning-LEL,measurements below 10%indicate the following; <br /> -The atmosphere is not considered fl letexplosive. <br /> -The atmosphere concentration may change(i.e. get better, get worse). <br /> -The atmosphere still contains high concentrations of measurable hydrocarbons <br /> which may likely to toxic(or even fatal)if personal exposure is not controlled <br /> VEHICLE TRAFFIC <br /> All field personal shall wear high visibility traffic safety vest, unless the work <br /> location is significantly remote form any vehicle traffic. Vest shall be donned <br /> immediately upon existing vehicles. In addition, all work areas shall be clearly <br /> marked and designated using a combination of traffic cones,barricades and <br /> warning tape. In addition, employees may be exposed to vehicle accident hazards <br /> associated with the operation of vehicles during the project. To control these <br /> hazardous, the following safety requirements will be strictly enforced. <br /> -Seat belts shall be worn ANYTME a vehicle is in motion, regardless of speed or <br /> distance to be traveled. Seat belt requirements also apply to the operation of back hoe <br /> and other construction equipment. <br /> -The basic speed law shall be followed at all times. Vehicles shall never be operated <br /> at a speed that is not safe for the conditions(i.e. road surface, traffic,visibility, <br /> weather and ctc.). <br /> Page 5 <br />