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North Coast Laboratories, Ltd. nate: 13-Oct-05 <br /> CLIENT: J L Analytical Services <br /> Work Order: 0510088 QC SUMMARY REPORT <br /> Project: 9-4236 Delta Arco 595 Laboratory Control Spike <br /> Sample ID LCS-05652 Batch ID: R37390 Test Code: 8260OXYW Units: pg/L Analysis Date 10/11/05 4:59:00 AM Prep Date <br /> Client ID: Run ID: ORGCMS3_051011B SegNo: 538156 <br /> Analyte Result Limit SPK value SPK Ref Val %Rec Lowl-imit HighLimit RPD Ret Val %RPD RPDLimit Qual <br /> Methyl tert-butyl ether(MTBE) 19.56 1.0 20.0 0 97.8% 80 120 0 ` <br /> Tert-butyl alcohol(TBA) 399.2 10 400 0 99.8% 25 162 0 <br /> Di-isopropyl ether(DIPE) 19.44 1.0 20.0 0 97.2% 80 120 0 <br /> Ethyl Tert-butyl ether(ETBE) 19.18 1.0 20.0 0 95.9% 77 120 0 <br /> Benzene 20.03 0.50 20.0 0 100% 78 117 0 <br /> Ted-amyl methyl ether(TAME) 19.06 1.0 20.0 0 95.3% 64 136 0 <br /> Toluene 19.97 0.50 20.0 0 99.8% 80 120 0 <br /> Ethylbenzene 18.93 0.50 20.0 0 94.6% 80 120 0 <br /> m,p-Xylene 38.96 0.50 40.0 0 97.4% 80 120 0 <br /> o-Xylene 18.61 0.50 20.0 0 93.0% 80 120 0 <br /> 1,4-Dichlorobenzene-d4 1.09 0.10 1.00 0 109% 81 139 0 <br /> Sample ID LCSM5652 Batch ID: R37390 Test Code: 8260OXYW Units pg/l- Analysis Date 10/12/05 2:19:00 AM Prep Date <br /> Client to, Run ID: ORGCMS3_051011 B SegNo: 538167 <br /> Analyte Result Limit SPK value SPK Ref Val %Rec Lowl-imit HighLimit RPD Ref Val %RPD RPDLimit Qual <br /> Methyl tert-butyl ether(MTBE) 19.07 1.0 20.0 0 95.3% 80 120 19.6 2.56% 20 <br /> Tert-butyl alcohol(TBA) 383.8 10 400 0 95.9% 25 162 399 3.92% 20 { <br /> Di-isopropyl ether(DIPE) 19.32 1.0 20.0 0 96.6% 80 120 19.4 0.582% 20 <br /> Ethyl tert-butyl ether(ETBE) 18.22 1.0 20.0 0 91.1°/ 77 120 19.2 5.14% 20 <br /> Benzene 20.35 0.50 20.0 0 102% 78 117 20.0 160% 40 <br /> Tert-amyl methyl ether(TAME) 17.93 1.0 20.0 0 89.6% 64 136 19.1 6.10% 20 <br /> Toluene 20.86 0.50 20.0 0 104% 80 120 20.0 4.39% 20 <br /> Ethylbenzene 19.63 0.50 20.0 0 98.2% 80 120 18.9 3.65% 20 <br /> m,p-Xylene 40.42 0.50 40.0 0 101% 80 120 39.0 3.68% 20 <br /> o-Xylene 18.20 0.50 20.0 0 91.0% 80 120 18.6 2.20% 20 <br /> 1,4-Dichlorobenzene-d4 1.12 0.10 1.00 0 112% 81 139 1.09 2.96% 20 <br /> Qualifiers: ND-Not Detected at the Reporting Limit S-Spike Recovery outside accepted recovery limits B-Analyte detected in the associated Method Blank <br /> 1-Analyte detected below quantitation limits R-RPD outside accepted recovery limits <br />