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CbCurtis &Tompkins, 'Ltd. <br /> Laboratory Number: 171535 Order Date: 04/02/04 <br /> Client: Treadwell & Rollo <br /> Project Name: Stockton <br /> CASE NARRATIVE <br /> This hardcopy data package contains sample results and batch QC results for twenty- <br /> one soil samples received from the above referenced project. The samples were <br /> received cold and intact. <br /> Total Volatile Hydrocarbons (TVH)/BTXE: The bromofluorobenzene surrogate <br /> recoveries of samples 15UST-BOT3-13 (171535-015), 15UST-SSW-4 (171535-016), <br /> 15UST-STOCKPILE (171535-017), and 15B6-BOT6-6 (171535-021) were above <br /> acceptance limits due to coelution of the surrogate peak with hydrocarbon peaks. The <br /> associated trifluorotoluene surrogate recoveries were acceptable, therefore, there is no <br /> affect on the quality of the sample results. No other analytical problems were <br /> encountered. <br /> Total Extractable Hydrocarbons: No analytical problems were encountered. <br /> Oxygenates: The bromofluorobenzene surrogate recoveries of samples 15UST- <br /> BOT3-13 (171535-015) and 15UST-STOCKPILE (171535-017) were above acceptance <br /> limits. No target compounds were detected in the associated sample, therefore, there <br /> is no affect on the quality of the sample results. No other analytical problems were <br /> encountered. <br /> Metals: No analytical problems were encountered. <br />