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? $_.;?� � <br /> V. $ � 9 <br /> y, '4 Vka xf `'P <br /> .. e <br /> _y <br /> I-a <br /> fhe hlarclt 1997 i:t�'cstigalion [lid not adc[luately defilte the cxtetlt of hydrocarbons in the <br /> Soil or grattndw:tter so the Iteltsontti 13oard directed ARCO <br /> to cottduct a second phast of <br /> istvesug;stion, In hl:trrh lc)89. BCC Conducted a second phase of invesugatton which included <br /> the ittstallati[xt of three acl[li[ional ust site t;r.)tfndwater rtttmitaring wells(A`I R-5 through ATR-7). <br /> 7). <br /> Analytical results of[he soil s:tsnpl[S collected during the second investigation indicated that <br /> benzene, e1hylhenzctte, talltene anti x}'lene constituesuS arc present in the soil at the locations of <br /> A'I'R-5 and ATR-7. Analytical results of groundwater samples collected indicated that benzene, <br /> ethylbenzene,and xylene was present ill the groundwater from ATR-5 and:t minor concentration <br /> of xyleste was present in the groundwater iron) ATR-7. <br /> i <br /> Mali <br />