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' Creolog"I TeAflks laG Page 5 Groundwater Monatonng Report Project No 724 2 November 12,2004 ' 2.0 FINDINGS AND DISCUSSION ' The results of the groundwater sample analyses indicate the following Wells MW-1, MW-2, MW-3, MW4, MW-5, MW-11, MW-104, MW-109, MW-110, MW- ' 111 and MW-210 did not contain petroleum hydrocarbon contaminants above the laboratory reporting limits Well MW-6 was dry and not sampled 1 TPH-G ' • None of the shallow wells contained TPH-G above laboratory reporting limits • Intermediate wells MW-106, MW-107 and MW-108 contained 192, 106 and 57 µg11 TPH-G, respectively ' • Deep well MW-208 contained 302 µg11 TPH-G 2 MTBE • Shallow well MW-7 contained 2 9 µg/l MTBE ' • Intermediate wells MW-106 and MW-107 contained 15 9 and 7 6 µg/1 MTBE, respectively ' • Deep wells MW-208 and MW-209 contained 3 2 and 7 0 µg/1 MTBE, respectively 3 Benzene • None of the shallow wells contained Benzene above the laboratory reporting limits a Intermediate wells MW-106 and MW-108 contained 0 9 and 0 6 µg/1 Benzene, respectively ® Deep wells MW-202 and MW-208 contained 0 6 and 0 5 µg/1 Benzene, respectively ' The distribution of groundwater contaminants is summarized as follows ' (Note The Isoconcentratton contours are generated utilizing the SURFER& computer modeling program We recognize that computer generated contour maps do not provide the most accurate representation of what is taking place in the field However, even hand- contoured map at best provide a shadow of reality Both need to be looked at as interpretation, not reality) ' 1 TPH-G • None of the shallow monitoring wells contained TPH-G above the laboratory ' reporting limits, and therefore a contour diagram was not produced • Figure 6 illustrates the distribution of TPH-G in the intermediate wells A localized high is centered in well MW-106 and the concentrations attenuate to the locations of ' MW-107 &MW-108 1