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10 September 2008 <br /> AGE-NC Project No. 07-1569 <br /> Page 3 of 8 <br /> 4.0. HAZARD EVALUATION <br /> The following substance(s)or hazards are known or suspected to be on site. <br /> SUBSTANCES INVOLVED: I CONCENTRATIONS: <br /> Total Petroleum Hydrocarbons Quantified as Unknown <br /> Diesel TPH-d) <br /> The primary hazards of each are identified as follows: <br /> 1. Hydrocarbon fuels - Components of fuels are colorless liquids with strong aromatic <br /> petroleum hydrocarbon-like odors. They are flammable and have low solubility in water. <br /> Exposure to these materials in excess of recommended exposure limits can cause mild eye, <br /> nose, and throat irritation and can produce a narcotic effect on the central nervous system. <br /> Symptoms of exposure at these concentrations include headache, nausea, drowsiness, <br /> dizziness,and loss of coordination.Certain components of gasoline(BTEX etc.)are known <br /> or suspected carcinogens. <br /> The additional potential hazards include: Slip-trip-fall hazards, noise, heavy equipment (i.e., <br /> Geoprobe),vibration hazards,traffic hazards, glass (i.e., dust/shards), etc. <br /> 5.0. PERSONAL PROTECTIVE EQUIPMENT <br /> Based on evaluation of potential hazards, the following levels of personal protection have been <br /> designated for the applicable work areas or task: <br /> LOCATION: JOB FUNCTION: LEVELS OF PROTECTION: <br /> Exclusion Zone Boring locations A B C D Other <br /> Reduction Zone Preserve samples A B C D Other <br /> Support Zone Support functions A B C D Other <br /> Specific protective equipment for each level of protection used is follows: <br /> Advanced GeoEnvironmental,Inc. <br />