ARCHIVED REPORTS_REMEDIAL INVESTIGATION REPORT 2000

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cbCurtis &Tompkins, Ltd. s Laboratory Number: 145486 Order Date: 05/03/00 Client: Advanced Geo Environmental, Inc. Project Name: Chase Chevrolet-Madison CASE NARRATIVE This hardcopy data package contains sample results and batch QC results for three water and twelve soil samples received from the above referenced project. The samples were received cool, but above 6 degrees C. Insufficient sample was received on sample 1513-6-6 (145486-001) to perform the lead analysis. Total Volatile Hydrocarbons (TVH)/BTXE (Water): The continuing calibration standard (CCS) %Ds for the TVH trifluorotoluene surrogate were above acceptance limits. The CCS %Ds for the BTXE compounds on 5/12/00 were below acceptance limits on the confirmation column only. No target range compounds were detected in the associated samples. No other analytical problems were encountered. • Total Volatile Hydrocarbons (TVH)/BTXE (Soil): The BTXE bromofluorobenzene surrogate recovery for sample 1513-6-10 (145486-002) was outside acceptance limits. The associated trifluorotoluene surrogate recovery was acceptable. The CCS %D for benzene on the confirmation column was above acceptance limits. The compound was not detected in the associated samples. Several of the CCS %Ds for the surrogates were outside acceptance limits, however, in all cases, the associated analyte %D was acceptable. No other analytical problems were encountered. Total Extractable Hydrocarbons: Samples 1513-9-10 (145486-011) and 1513-9- 15 (145486-012) were extracted at a dilution due to insufficient sample. No target range compounds were detected in these samples. No matrix spike results are available for the soil batch number 55717. The concentration of analyte in the spiked sample rendered the spike amount insignificant. No other analytical problems were encountered. Volatile Organic Compounds: No analytical problems were encountered. Metals: No analytical problems were encountered.