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M ON <br /> EN <br /> f� <br /> 777 <br /> HAZARD EVALUATION <br /> The potential for unknown hazards cannot he eliminated. Hazards <br /> can exist for all exposure routes such as inhalation, dermal <br /> contact, ingestion, and eye contact. <br /> The following are potential site hazards and the corresponding <br /> procedures for hazard reduction: <br /> POTENTIAL PROCEDURES FOR HAZARD <br /> HAZARDS REDUCTION <br /> 1. volatilization of organic 1. The ambient air within <br /> vapors during all the work area and in all <br /> operations can pose a confined spaces must be <br /> potential hazard via the monitored prior to entry <br /> inhalation of vapors. with an Ionization <br /> Detector. Depending on <br /> organic vapor air <br /> concentrations, a <br /> respirator may need to be <br /> worn. See page 18 for <br /> action level and page 17 <br /> for monitoring <br /> procedures. <br /> Workers should stand <br /> upwind of the source of <br /> contamination whenever <br /> possible, regardless of <br /> the air concentrations. <br /> 2. Skin and eye contact with 2. Use of approved gloves <br /> the separate--phase and goggles will be re- <br /> petroleum and hydro- quired when potential <br /> contaminated groundwater skin and eye contact with <br /> and/or soil may occur contaminated substances <br /> during well installation, is apparent. <br /> well development, well <br /> gauging, and soil and <br /> water sampling. <br /> `'� 9 <br />