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`1 ,r) <br /> • sample Purge water was contained In labeled DOT approved 55 gallon drums and stored on site <br /> Field parameters and purged volumes are shown on well purge logs included In Attachment I <br /> LABORATORY ANALYSIS <br /> Groundwater samples from the monitoring wells were placed on ice and transported under chain- <br /> of-custody protocol to AEN laboratory Groundwater samples from wells MW 1, MW4, MWS, <br /> and MW7 were analyzed for TPHg and TPHd by EPA method 8015 modified, and BTEX and <br /> methyl tertiary butyl ether(MTBE) by EPA method 8020 <br /> ANALYTICAL RESULTS <br /> Groundwater samples from wells MWl, MW2, and MW3 contained concentrations of benzene in <br /> excess of the State of California Maximum Contaminant Level (MCL) of 1 part per billion (ppb) <br /> No other petroleum constituents were detected above MCLS Analytical results for groundwater <br /> are summarized in Table 2 Laboratory data sheets and chain of custody documentation are <br /> included as Attachment II <br /> FREE PRODUCT REMOVAL <br /> Free product has been morutored and removed from MW2 monthly since a passive skimmer was <br /> installed in this well on June 27, 1997 During fourth quarter 1997, a total of 2 02 liters of <br /> product was removed The majority of the product removed during this period occurred during <br /> the December 1998 visit In which 1 75 liters was removed Collected free product was stored on <br /> site in a 55-gallon double containment drum A summary of product volume removed and <br /> previous product analytical data is presented in Table 3 <br /> 943341QUARTLY14QR.1997 DOC 3 SH <br />