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STS Southland Technical Services, Inc. <br /> Environmental Laboratories <br /> �i <br /> 08-12-2003 <br /> EPA 8260B <br /> lBatch QA/QC Report <br /> Client Blakely Environmental investigations, Inc Lab Job No BL308009 <br /> Project Frontier Transportation <br /> Matrix Water Lab Sample ID R308013-1 <br /> Batch No 0$06-VOAW Date Analyzed 08-06-2003 <br /> IL NLS/MSD Report <br /> Unit: ppb <br /> Compound Sample Spike MS MSD MS MSD % RPD %RPD %Rec <br /> Conc Conc %Rec %Rec Accept Accept <br /> Limit Limit <br /> 1,1- ND 50 452 39 1 904 782 145 30 70-130 <br /> Dichloroethene <br /> Benzene ND 50 488 468 976 936 42 30 70-130 <br /> Trnchloro- 10 50 634 599 1244 1178 55 30 70-130 <br /> • ethene <br /> Toluene ND 50 499 460 1998 920 8 1 30 70-130 <br /> Chlorobenzene ND 50 598 51 1 1196 1022 157 30 70-130 <br />' TI. LCS Result <br /> Unit: ppb <br /> Compound LCS Report Value True Value Rec % Accept Limit <br />' 1,1-Dichloroethene 402 50 804 80-120 <br /> Benzene 479 50 95 8 80-120 <br /> Trichloro-ethene 592 50 1184 80-120 <br />' Toluene 484 50 96 8 80-120 <br /> Chlorobenzene 53 4 50 1068 80-120 <br />' ND Not Detected (at the specified limit) <br /> I <br />' 7801 Telegraph Road Suite L Montebello CA 90640 Phone (323) 888-0728 Fax (323) 888-1509 <br />