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CAIVIBRIA <br /> Dispenser Areas: Four samples were collected at depths ranging from 4.0 to 5.0 fbg beneath <br /> the former dispensers. TPPH, benzene, and MTBE were ND in these samples. <br /> Product Piping: Four samples werecollected at depths ranging from 3.5 to 5.0 fbg beneath <br /> the former product lines. Sample P-4 contained TPPH at a concentration of 54.7 ppm. <br /> TPPH was ND in the other piping samples. Benzene and MTBE were ND in all samples <br /> collected beneath product piping. <br /> CONCLUSIONS <br /> Benzene and MTBE were not detected in any sa pies collected during the UST removal and _ <br /> site demolition activities. TPPH was detected at a very low concentration at one location in <br /> the former UST excavation (TS-D) and at 54.7 ppm at one location beneath an abandoned <br /> product line (P-4). <br /> CLOSING <br /> Based on these analytical data, Equiva submitted an Unauthorized Release Report. However, <br /> based on the low TPPH level and the fact that no benzene or MTBE was detected we request <br /> that SJCPHS consider case closure for this site. <br /> If you have any questions regarding this report, please call Joe Neely at (707) 935-4$54. <br /> Sincerely, <br /> Cambria Environmental Technology, Inc. <br /> 'A'" <br /> l"` r� � � Q OVE.SS/04f <br /> q! <br /> Aubrey K. Cool <br /> Staff Geologistrn <br /> Z <br /> Exp 31 9 4 419 <br />' <br /> Owen tchy , PE �. <br /> Project Engt r '!'��T <br /> C47749 <br /> F OF G INL\F <br /> 14 <br /> 201-1511 <br />