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(CLYA <br /> L <br /> A S S O C I A T E S I N C <br /> RESULTS <br /> Laboratory analyses detected petroleum hydrocarbon constituents in the sample collected only <br /> from well MW1 The constituent concentrations detected include TPHg (180 pbb), benzene (1 0 <br /> ppb), toluene (0 6 ppb), and xylenes (2 3 ppb) No ethylbenzne or fuel oxygenate additives were <br /> detected <br /> Groundwater samples collected from wells MW2, MM3 and the Domestic Well contained no <br /> detectable concentrations of BTEX, TPHg or fuel oxygenate additives <br /> Analytical results are summarized in Table 1 Laboratory reports and chain-of-custody <br /> documentation are presented in Attachment 2 <br /> ®THEM SITE ACTS <br /> Water produced from June 25, 1999 development and sampling of monitoring well MW-1 <br /> remained stored on-site in a 55-gallon drum pending a review of disposal options The initial <br /> groundwater sample collected from MW-1 indicated the presence of TPHg (110 ug/l), <br /> • ethybenzene (0 7 ug/1) and xylenes (7 8 ug/1) <br /> On December 20, 1999, ATC collected a grab sample of the water generated from MW-1 in June <br /> 1999 The sample was placed on ice transported under chain-of-custody to Argon Laboratories, <br /> Inc The sample was analyzed for BTEX and TPHg by EPA methods modified 8020/8015 <br /> The laboratory reported none of the constituents were detected above their respective laboratory <br /> method detection limits Laboratory data sheets are included in Attachment 2 <br /> Pending PHS/EHD approval, ATC will discharge the stored water from MW-1 to the ground <br /> surface <br /> • <br /> w 114885VeporU\4gtri999 dw 3 <br />