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w <br /> N"WW1 N",/ <br /> �. Steam Cleaning Level D, plus: polytyveks or <br /> rainsuit, boots, gloves, and <br /> faceshield or goggles. <br /> 6. 0 AIR MONITORING/RESPIRATORY PROTECTION ACTION LEVELS <br /> All monitoring equipment will be calibrated at least daily before <br /> the work shift, according to the manufacturer's specifications. <br /> Flame Ionization Detectors (FIDS) will be calibrated to methane in <br /> air, while Photoionization Detectors (PIDs) will be calibrated to <br /> isobutylene in air. Additional calibration will be carried out as <br /> necessary. All calibration and monitoring data will be recorded in <br /> the field notes. The selection of an FID vs. PID will be at the <br /> discretion of the Site HSO. <br /> Instrument Action Level, in Action to be Taken <br /> Used Workers' Breathing Zone <br /> FID or PID 20 ppm for 5 minutes Upgrade to half-face <br /> respirator with organic <br /> vapor cartridges. <br /> FID or PID 50 ppm for 5 minutes Upgrade to full-face <br /> respirator with organic <br /> vapor cartridges. <br /> FID or PID 100 ppm for 5 minutes Stop work, institute <br /> measures to reduce <br /> airborne concentrations. <br /> A wind direction indicator will be located on site and will be <br /> checked periodically to verify the upwind and downwind locations. <br /> +r 7 . 0 SITE CONTROL AND SECURITY <br /> Admission to active work areas will be restricted to authorized <br /> �,. personnel only. Only those individuals who have demonstrated <br /> compliance with the training and medical monitoring provisions of <br /> this plan will be considered authorized to enter the active work <br /> areas. All work areas will be demarcated clearly to avoid <br /> unauthorized persons from entering the work area. The site will be <br /> secured at the end of each work day. The site control zones, <br /> consisting of an exclusion area, decontamination area, and support <br /> r. area, are marked on Figure 2. <br /> -5- <br /> Environmental Health Consultants <br />