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SP EXPLORATION & OIL, INC. <br /> • ENVIRONMENTAL RESOURCE MANAGEMENT <br /> DATA REVIEW CHECKLIST <br /> BP Site Number 11224 <br /> ERM Contact H177179 <br /> Sampling Date 3/17/98 <br /> Matrix Description Water <br /> Date Final Report Received 3/30/98 <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? —X- <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%7 <br /> 7 Are holding tunes 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 relative % difference values for BTEX in one of two matrix spikes was outside QC <br /> range due to matrix interference MS/MSD linuts are advisory only, as stated in SW-846, <br /> Section 8 7 to 8 8, if the MS/MSD results fall outside the advisable ranges, a laboratory <br /> control samples (LCS) must be analyzed and fall within those ranges LCS results are within <br /> quality control limits <br /> Data Validation Completed by Brad Nagle <br /> (signature) <br /> Date <br /> ly• <br />