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1 10 2nd Avenue South ND7 Pacheco CA 94553 5560 <br /> McCampbell Analytical Inc Telephone 925 798-1620 Fax 925-798 1622 <br /> ' hitp//www mccampbell com E mail main a mccampbell coin <br /> • QC SUMMARY REPORT FOR SW8021B18015Cm <br /> 1 ' <br /> Matrix W WorkOrder 0210109 <br /> ' EPA Method SW8021 B/8015Cm Extraction SW5030B BatchlD 4297 Spiked Sample ID 0210109-009A <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 1 High <br /> TPH(gas) ND 60 103 100 245 101 993 1 47 80 120 <br /> ' MTBE ND 10 115 90 1— 244 965 100-- -3 86— 80 120 <br /> Benzene ND 10 100 945 5 86 105 107 194 80 120 <br /> T oluene ND 10 103 974 524 107 109 1 36 80 120 <br /> ' £thylbenzene ND 10 996 959 381 108 — 107 0 506 80 120 <br /> Xylenes ND 30 107 100 645 110 110 0 80 120 <br /> -%SS --— 90 1 100 966 T 89 821 992 100 l 16 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 /> ' M5=Matrix Spike MSD=Matrix Spike Dup4cate 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 sod 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)/(Amount Spiked) RPD=100'(MS-MSD)/(MS+MSD)"2 <br /> MS and I or MSD spike recoveries may not be near 100%or the RPDs near 0%if a)the sample is inhomogenous AND contains significant concentrations of <br /> ' analyte relative to the amount spiked orb if that specific sample matrix interferes with spike recovery <br />