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1 <br /> i <br />' Ethylbenzene concentrations were less than 0 5 ug/L (not <br /> detected) <br /> • Xylenes concentrations were less than 0 5 ug/L (not <br /> detected) <br /> • TPHd concentrations ranged from 56 ug/L to 91 ug/L. <br /> Ommenated Volatile Organic Com ounds <br />' Di.-isopropyl ether concentrations were less than 1 0 ug/L <br /> (not detected) <br />' Ethyl test--butyl ether concentrations were less than 1 0 <br /> ug/L (not detected) <br />' MTBE concentrations were less than 1 0 ug/L (not detected) . <br /> • Tert-amyl methyl ether concentrations were less than 1 0 <br /> ug/L (not detected) <br /> • Tert-butanol concentrations were less than 5 . 0 ug/L (not <br /> detected) <br /> • Methanol concentrations were less than 500 0 ug/L (not <br /> detected) <br /> • Ethanol concentrations were less than 50 0 ug/L (not <br /> detected) <br /> • EDB concentrations were less than 1 . 0 ug/L (not detected) <br /> • 1, 2-DCA concentrations were less than 1 0 ug/L (not <br />' detected) <br /> Metals <br />' Lead concentrations were less than 5 0 ug/L (not <br /> detected) <br />' 7 . 0 DISCUSSION <br />' Laboratory analytical results indicated that there were non- <br /> detectable concentrations of TPHg, BTEX, 9 oxygenates, and lead, <br /> and detectable concentrations of TPHd in the grab groundwater <br />' samples collected from HP-1 and HP-2 <br /> 5 <br />