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C H R4 MA LAB, INC. <br /> Submission #: 1999-0s-0242 <br /> Environmental Services (SOB) e <br /> To Azure Environmental - Test Method 8015M <br /> 8020 <br /> Attn Jeff Hennler Prep Method 5030 <br /> Batch QC Report <br /> Gas/BTEX ' <br /> _ _ 4 <br /> Laboratory Control Splice (LCSILCSD) Water QC Batch 9 1999106123-01 03 <br /> LCS - 1999106123-01 03-002 Extracted 06/23/1999 10 02- Analyzed °0612311999 10 02-- <br /> --LCSD -1999106123-01 03-003 -Extracted -06/23/1999 10 56- -Analyzed --0612311999 10 56-- <br /> Compound Conc [ug/L] Exp Conc [ug/L] Recovery[%5 RPD Ctrl Limns[%] Flags ` <br /> LCS I LCSD LCS LCSD LCS I LCSD! [°l.] !Recovery I RPD LCS LCSD ' <br /> Gasoline 502 523 1500 500 1004 1046 14 1 75-125 20 s <br /> Benzene 83 5 914 i 1000 1000 8351 914 90 77-123 20 <br /> Toluene 81 7 901 1000 ! 1000 817 901 98 78-122 20 <br /> Ethyl benzene s 821 898 1000 1000 8211 898 I 90 70-130 20 <br /> Xylene(s) 230 256 300 300 1 7671 853 110 6 75-125 20 <br /> Surrogate(s) <br /> Trt luorotoluene 378 1 411 500 500 75 6 i 8221 j 58-124 I <br /> 4-Bromofluorobenzene-FT 536 1 562 500 500 107 2; 1124 1 50-150 I <br /> - - e <br /> i <br /> i <br /> 1 <br /> 1220 Quarry Lane'Pleasanton,CA 94566-4756 <br /> Telephone (925)484-1919"Facsimile (925)484-1096 <br /> Pnnted on 06/24/1999 17 34 Page 15 of 15 <br />