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October 2017 AdvancedGeo <br /> AGE Project No. 14-3096 Environmental <br /> Page 2 of 6 <br /> 3.0. ON-SITE CONTROL <br /> The Site Safety Officer will coordinate site access control and security. An exclusion <br /> zone will be established approximately 20 feet around excavation location work areas. <br /> No unauthorized person shall be allowed within this exclusion area. <br /> 4.0. HAZARD EVALUATION <br /> The following substance(s) or hazards are known or suspected to be on site. <br /> SUBSTANCESINVOLVED: CONCENTRATIONS: <br /> Benzene 6.1 pg/I <br /> Toluene 3.7 pg/I <br /> Ethyl-benzene 73 pg/I <br /> Total xylenes 170 pg/I <br /> MTBE 1,800 pg/I <br /> TPH-Diesel N/A <br /> TPH-Gasoline 1,600 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 />