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August 2018 <br />AGE Project No. 11-1847 <br />Page 2 of 6 <br />AdvancedGeo <br />Environmental <br />g <br />4.0. HAZARD EVALUATION <br />The following substance(s) or hazards are known or suspected to be on site. <br />SUBSTANCES INVOLVED: CONCENTRATIONS: <br />Benzene 15,000 pg/I <br />Toluene 14,000 pg/I <br />Ethyl-benzene 2,300 pg/I <br />Total xylenes 9,700 pg/I <br />MTBE N/A <br />TPH-Diesel 10,000 pg/I <br />TPH-Gaosline 98,000 pg/I <br />The additional potential hazards include: Slip-trip-fall hazards, noise, heavy equipment <br />(i.e., drill rig), vibration hazards, traffic hazards, etc. <br />5.0. PERSONAL PROTECTIVE EQUIPMENT <br />Based on evaluation of potential hazards, the following levels of personal protection <br />have been designated for the applicable work areas or task: <br />LOCATION: JOB FUNCTION: LEVELS OF PROTECTION: <br />Exclusion Zone Excavation Area 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 />hard hat <br />steel-toed boots <br />Level D: <br />half-faced respirator (if necessary) <br />gloves <br />safety glasses