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• Hard Hat <br /> • Splash goggles or safety glasses <br /> • Chemical resistant disposable gloves (when in contact with contaminated <br /> material) <br /> Level C protection will be required if PTD readings exceeding 100 ppm total volatile organics <br /> over background concentration are encountered in the workers breathing zone. Level C <br /> protection will consist of: <br /> • Disposable Tyvek coverall <br /> • Boots with steel toe <br /> • Chemical resistant boot covers <br /> • Splash goggles <br /> • Hard Hat <br /> • Chemical resistant disposable gloves (inner) <br /> • Chemical resistant outer gloves <br /> • MSHA/NIOSH approved half-face or full-face air-purifying respirator <br /> with dual organic vapor cartridges <br /> If PID readings exceed 250 ppm in the workers breathing zone, all work will stop and the <br /> exclusion zone will be evacuated. In this situation, an explosion-proof fan may be used to vent <br /> the work area. <br /> DECONTAMINATION <br /> During all field operations, care will be taken to minimize contact with contaminated soils and <br /> groundwater. Drilling spoils and developmental water will be stored on-site for proper treatment <br /> or disposal. This will minimize contact and dispersion of potentially contaminated materials. <br /> If necessary, upon exit from the work site, loose debris will be removed from protective clothing <br /> by brushing or rinsing. Gloves and boots will be decontaminated in a 5% solution of trisodium <br /> phosphate, and rinsed with clean potable water. All rinseate will be disposed of or treated on- <br /> SAFEYY.WP <br />