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SC <br /> M88168D D <br /> -5- <br /> .Tune 1990 <br /> M.; <br /> re <br /> As can be seen in Tabl^.m' fthe or lowestbenzenpermissible <br /> rmissi, This concentration ewillube <br /> limit (STEL) concentration is 5 pp <br /> used for establishing tae requirement to don Level c personnel protective <br /> equipment (see "Personnel Protective Equipment" section). <br /> ,ter <br /> rr JOB HAZARDS <br /> Chemical hazards could be encountered from direct skin contact with <br /> is in <br /> Level <br /> hing volatilized <br /> conte��n�tincludes tandardtwork lothing and glovesawhi h would reduce di ea <br /> equip A PID will be <br /> f = skin contact with <br /> inetheals breathingtzone and if organicsval.ornconcentrations of <br /> all <br /> in continuous u <br /> 5 ppm above background are detected, Level C Layne we to n personnel).by The <br /> personnel in the contaminated zone (5Go and Layne" <br /> i om inhaled contaminants. <br /> respirator should protect the workers fr <br /> potential to disrupt the project in that <br /> Weather conditions have the p <br /> if it is raining, excavation and sampling should be postponed. It is the project. <br /> would preclude that temperature <br /> conditions <br /> to be encounte ed are 651F950F. <br /> Temperature ranges expo f If workers are <br /> wearing Level C equipment and the temperature is more that. 80°F, workers will . <br /> quired to take 10 minute breaks every hour, rest in the shade and <br /> redrink fluids. <br /> Underground utilities should not be encountered, the 4-inch water <br /> i which were exposed in the excavation, are the only <br /> main and electric conduit, <br /> r subsurface utilities expected in the site area. <br /> k:-0 <br /> AS' <br /> E55MENT OPERATION <br /> ' The pite <br /> otential for adverse health or safety risks to Concentration ofsthe <br /> workers or the immediate surrounding area are low. <br /> esat the e <br /> hazardous substances encountered in previous <br /> reviou asseillbeenco=teredespecially <br /> low and it is unlikely tha g <br /> outside and atmospheric dispersion of <br /> considering the fact thatthe <br /> sieis ecial arrangements for possible neighborhood <br /> contaminants will be signi.f tP <br /> evacuation should not be required. <br /> No unauthorized personnel may be permitted in the work zones during <br /> enter the work <br /> the assessment operations. If local residents, reporters,ro edurese have been <br /> site, they should be informed that health and safety p <br /> the <br /> established to protect both <br /> oh the woruldkers <br /> be contactedublic. If they refuse to leave, <br /> the local police depart <br />