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1 <br /> BP EXPLORATION & OIL, INC. <br /> {., ENVIRONMENTAL RESOURCE MANAGEMENT <br /> DATA REVIEW CHECKLIST <br /> BP Site Number: 11193 <br /> ERM Contract: H177174 <br /> Sampling Date: 1/7/98 <br /> Matrix Description: Water <br /> Date Final Report Received: 1/26/98 <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%? —X- <br /> 7. Are holding times met? —X- <br /> 8. Are surrogates within limits using laboratory <br /> criteria? See Below <br /> 9. Are MS/MSD acceptable using laboratory See Below <br /> criteria? <br /> 10. Are LCS results acceptable using laboratory <br /> criteria? X <br /> Analysis of one of surrogate 4-Bromofluorobenzene during TPH-G analysis of S-4 and S-5 <br /> was outside quality control limits due to matrix interference; the quality control for that <br /> method specifies that only one of two surrogate should be within the specified recovery range. <br /> MS/MSD recovery and relative % difference values for MTBE in two of the three matrix <br /> spikes was outside QC range due to matrix interference. 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 <br /> ranges, a laboratory control samples (LCS) must be analyzed and fall within those ranges. <br /> LCS results are within quality control limits. <br /> Data Validation Completed by: Brad Nagle <br /> (signature): <br /> � � Date: <br />