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Specialty Analytical Date: 21-May-99 <br />_ -___ _ _ <br />CLIENT: __ _ _ _ _ <br />Century West Engineering <br />QC SUMMARY REPORT <br />Work Order: 9904157 Laboratory Control Spike - generic <br />Project: 4080600124/4102 - Courthouse <br />Sampie ID LCS Batch ID: 1389 Test Code: NWTPH-Gx Units: mg/Kg Analysis Date 4l3011999 Prep Date 4129N999 <br />Client ID: 9904157 Run ID: GC-I_990430A SeqNo: 38699 <br />Analyte Result <br />- --- PQL SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual <br />-- - <br />Gasoline <br />_ -- <br />- _ <br />28.5 <br />2.5 <br />25 <br />0 <br />114.0°/a <br />73.4 <br />120 <br />Sample ID icsd Batch ID: 1389 Test Code: NWTPH-Gx Units: mg/Kg Analysis Date 4130l1999 Prep Date 412 911 9 9 9 <br />Client ID: 9904157 Run ID: GC-I_990430A SeqNo: 38702 <br />Analyte Result PQL <br />-- --- SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Vai %RPD RPDLimit Qual <br />--- ----- <br /> <br />Gasoline <br />------ - -- <br />----- <br />29.2 <br /> <br />2.5 <br /> <br />25 <br /> <br />0 <br /> <br />116.8% <br /> <br />73.4 <br /> <br />120 28.5 <br /> <br />2.4°/a 20 <br />Sample ID Ics Batch ID: BTEX_S-5/20/ Test Code: SW8021A Units: mglKg Analysis Date 5/19/1999 Prep Date 5119/1999 <br />Client ID: 9904157 Run ID: GC-H_990520 B SeqNo: 40513 <br />Analyte Result <br />-- <br />- -- PQL <br />- SPK value SPK Ref Val %REC LowLimit HighLimit RPD Ref Val %RPD RPDLimit Qual <br />Benzene ---- <br />Ethylbenzene <br />Toluene <br />Xylenes, Total .89 <br />-------- --- <br />1.03 <br />.99 <br />3.15 0.05 <br />0.1 <br />0.1 <br />0.3 1.25 <br />1.25 <br />1.25 <br />3.75 0 <br />0 <br />0 <br />0 71.2% <br />82.4% <br />79.2% <br />84.0% 65.8 <br />75.2 <br />74.2 <br />78.6 116 <br />114 <br />117 <br />117 <br />~ of ~ <br />