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I 2nd Avenue South #D7 Pacheco CA 94553-5560 F4 McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-799-1622 ' http 11www mccampbel l corn E-mail mai re mccampbell com QC SUMMARY REPORT FOR SW8260H Matrix W WorkOrder 0307008 ' EPA Method SW8260B Extraction SW5030B SatchlD 7645 Spiked Sample ID 0307008-0198 Sample Spiked MS` MSD' MS-MSD LCS LCSD LCS-LCSD Acceptance Criteria(%) ' Ng/L pg/L % Rec % Rec % RPD %Rec %Rec %RPD Low Nigh tert-Amyl methyl ether(TAME) ND 10 904 88 8 175 90 1 953 563 70 j 130 ' Benzene ND 10 118 117 129 114 120 5 57 70 130 Dusopropyl ether(DIPE) ND 10 102 101 0 946 103 108 561 70 130 ' Ethyl tert-butyl ether(ETRE) ND 10 901 88 9 1 29 907 969 6 56 70 I30 Methyl-t-butyl ether(MTBE) ND 10 97 961 0 881 97 4 103 5 84 70 130 Toluene ND 10 124 125 0 756 125 128 190 70 I 130 %SS1 Ito 100 912 904 0 892 81 1 78 6 323 70 130 %SS2 101 100 962 962 0 995 991 0 344 70 130 %SS3 105 100 977 994 1 77 99 9 996 0 380 70 130 All target compounds to the Method Blank of this extraction batch were ND less than the method RL with the followmg exceptions • NONE I MS=Matnx Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample LCSD=Laboratory Control Sample Duplicate RPO=Relative Percent Deviation %Recovery=100*(MS-Sample)/(Amount Spiked) RPD=100*(MS—MSD)I(MS+MSD)*2 -MS and I or MSD spike recovenes may not be near 100%or the RPDs near 0%if a)the sample is inhomogenous AND contains significant concentrations of analyte relative to the amount spiked or b)if that specific sample matnx interferes with spike recovery NIA=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 Laboratory extraction solvents such as methylene chloride and acetDns ma occasionally appear in the method blank at low levels I