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r^ <br /> WJW, <br /> March 19, 1991 <br /> Uszocal Station idn, 6981. Stockton. C'aliEarnia <br /> Colitinue monitoring <br /> 1(} to ZS percent tlscii with eytremc caution as <br /> of LEI- <br /> higher levels arc <br /> .., encountered <br /> Greater than 25 thr.rt rxplosiosi hazard. <br /> Percent of LFL. Ccasc activities and <br /> vacate arca immediately <br /> • CGI reading5 in pi:rcent of lower explosive limit <br /> If an explosion potential is present onsite beyond 25 percent of the LEL then all Applied <br /> GeoSystenls' personnel and subcontractors must irnnvediately withdraw from the site. The <br /> hazard potential will be evaltiated by Applied GcoSystents' management and a plan of <br /> action will be assessed. <br /> DECpN-1'AAIINATION PROCEDURES <br /> ' Drilling equipmesit and personal protective equipment will uncierga grass decontamination <br /> ll i <br /> onsite. This gross decontamination tion.wile amlllcleastingistcontaminated <br /> ast accept ble altequipment with a <br /> rnat ve <br /> trisoium pliosphate (TSP) <br /> c-. <br /> 39032-as <br />