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AkCREEK ENviRONMENTAL LABORtORIES INC. <br /> k 141 SUBURBAN ROAD,SUITE C-5 • SAN LUIS OBISPO,CA 93401 - (805)545-9838 - FAX(805)545-0107 <br /> Case Narrative K1845: <br /> Reporting limits for metals (EPA 6010) on Sample 03-05695 were raised due to <br /> matrix interferences. <br /> The calculated % recovery for TPH-diesel on the matrix spike 03-05712 was out of <br /> the accepted range. The sample result for TPH-diesel was much greater than the <br /> concentration used to spike the sample; therefore the data for the matrix spike set cannot <br /> be accurately calculated. %Recoveries for the laboratory control spike (LCS) were <br /> within established ranges. The data was accepted. <br /> The calculated relative % differences for TPH-diesel and motor oil on sample 03- <br /> 05696 and duplicate were out of the accepted ranges. The sample was not homogeneous. <br /> (y PRINTED ON RECYCLED PAPER <br />