ARCHIVED REPORTS XR0012679 - Laserfiche WebLink

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b. site perimeter shall also bo monitored on 30 minute intervals. Monitoring frequency would be increased by the site manager if r conditions approach alarm level. SITE PE750DWL Breathing zone vapor con=an'srations at.the borehole greater than tho Perw;.asible Exposure Limits (PELa) require Ute personnel to use a respirator wit., organic vapor cartridges and goggles. Breathing zone vapor concentrations at the borehole that approach the uaximum element capacity of the organic vapor cartridge requires site manager to monitor site perimeter (concentrating in the down wind direction). ,y Breathing zone vapor concentrations at the borehole that exceed the mauimum element capacity of the organic vapor cartridge requires site activities to be stopped until concentrations decrease." Site manager should continuously monitor site perimeter. �,. SITE PERIMETER Breathing zone concentrations at site perimeter less than the PBL, site r`r manager shall monitor on 30 minute intervals un:esa notified by project peraaonnel of elevatod readings. Breathing zone concentrations at tlae site perimeter greater than the PEL, site manager shall continuously monitor conditions on site boundary concentrating in the down wind direc.:ion. Breathing zone concentrations at site perimeter greater than the PSL, aite If the PSL continues to be manager shall continuously monitor conditions. exceeded for 15 minutes, drilling actin-itiae shall be stopped. - r3 Breathing zone concentrations at site perimeter greater than the FEL, site manager:ishall immediately stop drilling and clear aite personnel. Appropriatu reTilatory agencies should be contacted (see bels). Site manager shall continue to monitor conditions until levels are reduced to background 4. .. concentrations. xm - MW � 4 r : g3 CONDOR