REMOVAL_1991 - Laserfiche WebLink

Home Browse Search

� i • ' immediate vicinity of heavy equipment will wear hard hats, steel toe work boots, and hearing protection, if necessary. ' Worker exposure to potentially unstable excavations will be mitigated by preventing worker entry into any and all pits. All excavations deeper than four feet must be properly shored and trenched in accordance with OSHA 29 CFR 1926.650-653. Soil sampling will be conducted via the use of a backhoe; soil samples (from beneath the tanks) will be collected in the backhoe bucket. The samples will then ' be obtained directly from the backhoe bucket. Traffic safety will consist of placing traffic cones around the work area. If appropriate, field vehicles will also be positioned to protect the immediate work zone. ' If field work is performed during warm weather, air temperatures will be monitored during work activities. Workers will be instructed to be alert for signs and symptoms of heat stress. Frequent rest periods will be taken in a shady location. During rest periods, workers will be instructed to drink plenty of fluids. Chemical Hazards ' Exposure to petroleum products liquids and/or vapors are anticipated to be low. Prior to excavation the tanks will be emptied of residual product. Vapors remaining in the tanks will be inerted by the ' addition of an appropriate quantity of dry ice and monitored through the use of an explosimeter and/or oxygen level meter. Worker protection for petroleum vapors will consist of Level D at the start of field work. This protection level will include the use of nitrile gloves, chemical-resistant overboots, as well as frequent monitoring with an organic vapor monitor and benzene-sensitive Colorimetric ' Indicator Tubes. Half-face respirators will be readily available near- by. If conditions warrant, the level of protection will be upgraded to Level C which will include, at a minimum, protective clothing and a ' half-face air-purifying, canister-equipped respirator. Table 4-1 shows the action levels and appropriate personal protective equipment for all tank removal and sampling activities. Training A well-equipped First Aid Kit will be available at all times on site for ' minor injuries. All ERM-West field personnel are trained in the use of the First Aid Kit, and have completed the 40-hour course in Health 4-2 1