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QUALITY CONTROL SUMMARYWG1999119 <br />Volatile Organic Compounds (GC) by Method 8015 L1580356-01 <br />Method Blank (MB) <br />(MB) R3887026-3 02/02/23 14:20 <br /> MB Result MB Qualifier MB MDL MB RDL <br />Analyte ug/l ug/l ug/l <br />TPHG C5 - C12 53.9 J 30.4 100 <br /> (S) <br />a,a,a-Trifluorotoluene(FID)98.3 78.0-120 <br />Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) <br />(LCS) R3887026-1 02/02/23 11:49 • (LCSD) R3887026-2 02/02/23 13:01 <br /> Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits <br />Analyte ug/l ug/l ug/l %%%%% <br />TPHG C5 - C12 5500 5700 5730 104 104 71.0-127 0.525 20 <br /> (S) <br />a,a,a-Trifluorotoluene(FID) 105 105 78.0-120 <br />1 Cp <br />2 Tc <br />3 Ss <br />4 Cn <br />5 Sr <br />6 Qc <br />7 Gl <br />8 Al <br />9 Sc <br />ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: <br />711 Stantec - San Diego, CA 185851132 L1580356 02/10/23 07:56 30 of 44 <br />ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: <br />711 Stantec - San Diego, CA 185851132 L1580356 02/10/23 10:37 30 of 44