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SP EXPLORATION & OIL, INC. <br /> ENVIRONMENTAL RESOURCE MANAGEMENT <br /> DATA REVIEW CHECKLIST <br /> BP Site Number: 11192 <br /> ERM Contact: H336239 <br /> Sampling Date: 2/26/98 <br /> Matrix Description: Water <br /> Date Final Report Received: 3/16/98 <br /> Laboratory & Location: SPL, Houston, Texas <br /> Yes No N/A <br /> 1. Is BP contract release number <br /> consistent with analytical report? —X- <br /> 2. Was report submitted within the <br /> specified timeframe? <br /> 3. Does report agree with the COC? —X- <br /> 4, Are units consistent with the given matrix? —X- <br /> 5, Were any target analytes/compounds <br /> detected in blanks (i.e., trip or equipment)? —X- <br /> 6. Are duplicate water samples within 30%? —X- <br /> 7. Are holding times met? —X- <br /> 8. Are surrogates within limits using laboratory <br /> criteria? _X- <br /> 9. Are MS/MSD acceptable using laboratory See Below <br /> criteria? <br /> 10. Are LCS results acceptable using laboratory <br /> criteria? —X— <br /> MS/MSD recovery and relative % difference for benzene in one of two matrix spikes was not <br /> calculated due to sample exceeding spike by a factor of 4 or more. MS/MSD limits are advisory only; <br /> as stated in SW-846, Section 8.7 to 8.8, if the MS/MSD results fall outside the advisable ranges, a <br /> laboratory control samples (LCS) must be analyzed and fail within those ranges. LCS results are <br /> within quality control limits. <br /> Data Validation Completed by: Bra agle <br /> (signature): ' <br /> Date: <br /> i <br />