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y <br /> ri <br /> P .. BP EXPLORATION & OIL, INC. <br /> .fJ:_>• t <br /> ENVIRONMENTAL RESOURCE MANAGEMENT <br /> DATA REVIEW CHECKLIST <br /> -i <br /> BP Site Number: 11145 <br /> ' ERM Contact: H177183 <br /> Sampling Date: 05/07/98 <br /> Matrix Description: Water <br /> Date Final Report Received: 06/01/98 <br /> Laboratory & Location: SPL, Houston, Texas <br /> E::1 <br /> Yes No N/A <br /> 1. Is BP contract release number <br /> consistent with analytical report? —X- <br /> 2. <br /> _2. Was report submitted within the <br /> specified timeframe? —X- <br /> 3. Does report agree with the COC? _X_ <br /> r <br /> I � <br /> i 4. Are units consistent with the given matrix? _X_ <br /> S. 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. <br /> _7. Are holding times met? —X- <br /> 8. Are surrogates within limits using laboratory <br /> criteria? <br /> 9. Are MS/MSD acceptable using laboratory See Below _ <br /> criteria? <br /> I <br /> L-� 10. Are LCS results acceptable using laboratory <br /> criteria? X <br /> MS/MSD relative % difference value for toluene in one matrix spike was outside QC range <br /> due to matrix interference. MS/MSD limits are advisory only; as stated in SW-846, Section <br /> 8.7 to 8.8, if the MS/MSD results fall outside the advisable ranges, a laboratory control <br /> samples (LCS) must be analyzedzed and fall <br /> within those ranges. LCS results are within quality <br /> control limits. <br /> f <br /> Data Validation Completed by: Brad Nagle <br /> (signature): <br /> Date: <br /> '�J <br />