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i r4{ j[ 110 2nd Avenue South #D7 Pacheco CA 94553 5560 LFt�f9'�j McCampbell Analytical, Inc. Telephone 925-798-1620 Fax 925 798-1622 Website www mccampbell com E marl main@mccampbell com QC SUMMARY REPORT FOR SW8021B18015Cm W O Sample Matnx Water QC Matrix Water WorkOrder 0412540 EPA Method SW8021B18015Cm Extraction SW50306 BatchlD 14499 Spiked Sample ID 0412530-005A Sample Spiked MS* MSD* MS-MSD' LCS LCSD LCS-LCSD Acceptance Criteria (%) Analyte pgIL pgIL % Rec % Rec % RPD %Rec %Rec %RPD F70- D LCS 1 LCSD TPH(btex)E ND 60 96 8 101 458 971 93 3 392 0 70- 130 MTBE ND 10 97 3 100 279 889 87 2 12 0 70-130 Benzene ND 10 99 105 5 87 937 929 0 960 70-130 70- 130 Toluene ND 10 968 104 7 14 965 965 0 70- 130 70-130 Ethylbenzene ND 10 105 107 200 999 986 1 17 70- 130 70 130 Xylenes ND 30 91 7 95 357 100 997 0 334 70- 130 70-130 %SS 109 10 109 110 l 32 99 99 0 70-130 70-130 All target compounds In the Method Blank of this extraction batch were ND less than the method RL with the following exceptions NONE MS=Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPD=Relative Percent Deviation %Recovery=100*(MS Sample)I(Amount Spiked) RPD=100*(MS- MSD)1((MS+MSD)/2) *MS I MSD spike recoveries and 1 or%RPD may fall outside of laboratory acceptance criteria due to one or more of the following reasons a)the sample is inhomogenous AND contains significant concentrations of analyte relative to the amount spiked or b)the spiked sample's matrix interferes with the spike recovery £TPH(btex)=sum of BTEX areas from the FID • #cluttered chromatogram sample peak coelutes with surrogate peak NIA=not applicable or not enough sample to perform matrix spike and matrix spike duplicate NR=analyte concentration in sample exceeds spike amount for soil matrix or exceeds 2x spike amount for water matrix or sample diluted due to high matrix or analyte content DHS Certification No 1644 QA/QC Officer