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7.0 CONCLUSIONS <br /> The results of this assessment indicates that fuel petroleum hydrocarbons are <br /> ponsite ort in the <br /> groundwater as a result of gasoline dispensing activities from possible <br /> locations. The TPH and BTEX constituents were detected in monitoring well MW-2 which <br /> is situated at the location of a possible former UST. <br /> Based on the presence of gasoline constituents detected <br /> additional subsurfacebeneath groundwater invhestigation, <br /> SECOR recommends that ARCO should consider <br /> onsite to assess the extent, probable sources, and potential impact of soil and groundwater <br /> contamination. <br /> ed and all the wells <br /> Specifically, groundwater monitoring at the site should be continu <br /> sampled for TPH, B'I'ER, MTBE and given the inconsistencies r alltae weld in sample results, volatile <br /> organics by method 8260 should also be included <br /> Additional subsurface investigation should be considered,h coundwater sampling ng in the <br /> 1 luding the drilling of five <br /> additional soil borings in the vicinity of MW-2 and by p <br /> borings,in order to evaluate potential environmental liabilityundwatermmoninecessary. lnng wellse onsite offsite <br /> tobe <br /> sources. Depending on the results, dro1tional unch locations are shown on Figure 3. <br /> 1 <br /> necessary. The proposed soil boring/hy P <br /> J <br /> J <br /> J <br /> J <br /> JN 40007-097-01 7-1 <br /> ded96\awnteca.eu <br />