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110 2nd Avenue South #137 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> http/1wwwrnccampbellcorn Email marnOmccampbell Coin <br /> QC SUMMARY REPORT FOR SW8021B/8015Cm <br /> Matrix W WorkOrder 0302315 <br />' EPA Method SW8021 W8015Cm Extraction SW5030B BatchlD 5986 Spiked Sample ID NIA <br /> Sample Spiked MS* MSD" MS-MSD' LCS LCSD LCS-LCSD Acceptance Criteria(%) <br /> Compound �- <br /> pg/L Ng/L % Rec %Rec %RPD %Rec %ReC% RPD Low High <br />' TPH(gas) NIA 60 N/A N/A N/A 987 103 459 70 130 <br /> MTBE NIA 10 N/A N/A N/A 851 864 149 70 134 <br />' Benzene NIA 10 N/A N/A NIA 97 8 996 1 78 70 130 <br /> Toluene N/A 10 NIA N/A N/A 923 956 3 53 70 130 <br />' Ethylbenzene N/A 10 NIA NIA N/A 985 103 414 70 130 <br /> Xylenes N/A 30 NIA N/A NIA 933 100 690 70 130 <br />' %pSS NIA 100 N/A N/A N/A 999 969 297 80 120 <br /> All target compounds in the Method Blank of this extraction batch were ND less than the method RL with the following exceptions <br /> NONE <br /> lie <br /> 1 <br /> MS=Matrix Spike MSD=Matrix Spike Duplicate LCS=Laboratory Control Sample,LCSD=laboratory Control Sample Duplicate,RPD=Relative Percent <br /> Deviation <br /> N/A=not enough sample to perform matrix spike and matrix spike duplicate <br /> 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 <br /> analyte content <br />' %Recovery=100*(MS-Sample)1(Amount Spiked),RPD=100*(MS—MSD)/(MS+MSD)*2 <br /> *MS and 1 or MSD spike recoveries may not be near 100%or the RPDs near 0%it a)the sample is inhomogenous AND contains significant concentrations of <br /> anal a relatrve to the amount spiked or b)d that specific sample matrm interferes with spike recovery <br /> 1 <br /> 1 <br />