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i <br /> �4 <br /> Appendix A to Work Plan <br /> Vernalis Property <br /> 35500 Welty Road <br /> Vernalis, California <br /> Project No. 248.2 <br /> j January 3, 1995 <br /> 1.0 HEALTH AND SAFETY PROGRAM <br /> I <br /> Geological Technics has incorporated the following health and safety precautions <br /> while working on sites with the potential for containing unidentified hazardous <br /> waste Once the nature and extent of contamination has been determined, <br /> additional work on site will be met with the proper precautions <br /> 1.1 Workers Health and Safety <br /> 1.1.1 Work Space Safety <br /> The perimeter of the work space should, if possible, be 20 feet from the drilling <br /> rig or excavation site The working perimeter will be marked by brightly colored <br /> delineators All unauthorized personnel will not be allowed access into the work <br /> space <br /> The <br /> p } supervisor ro ect will coordinate all field activities and maintain the safest <br /> possible working environment at all times If an emergency occurs, the <br /> supervisor will immediately contact the proper authorities <br /> 112 Skin and Head Protection <br /> Disposable suits, boots, and gloves will be worn when the working conditions <br /> require such precautions <br /> Disposable plastic gloves will be worn at all times during soil and groundwater <br /> sampling The gloves will be changed after each sample has been collected <br /> Used disposable clothing will be properly discarded at the end of each working <br /> day <br /> �i Hard hats will be worn during drilling, excavation, and other activities in which <br /> potentially dangerous equipment is being operated within the work space <br /> 11.3 Face and Respiratory Protection <br /> During drilling and excavation activities, the working air space will be <br /> periodically monitored with either a Photo Ionization Detector (PID) or SKC <br /> • Color-Detector Tubes (Draeger Tubes) for gas and vapor content The PID <br /> measures the total organic compounds (VOC) vapor concentration while the <br />