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Surrogate Summary <br /> Client: GHD Services Inc. TestAmerica Job ID: 720-91968-1 <br /> Project/Site: UPRR-Tracy Substation <br /> --- -------- - – - --- — <br /> Method: 8260B -Volatile Organic Compounds (GC/MS) <br /> Matrix: Solid Prep Type: Total/NA <br /> Percent Surrogate Recovery(Acceptance Limits) <br /> BFB DCA TOL <br /> Lab Sample ID Client Sample ID (45-131) (60-140) (58-140) <br /> 720-91968-1 WR#19721 104 102 91 <br /> 720-91968-1 MS WR#19721 102 100 96 <br /> 720-91968-1 MSD WR#19721 101 104 97 <br /> LCS 720-262202/5 Lab Control Sample 99 96 101 <br /> LCS 720-262202/7 Lab Control Sample 104 95 98 <br /> LCSD 720-262202/6 Lab Control Sample Dup 100 96 102 <br /> LCSD 720-262202/8 Lab Control Sample Dup 104 96 98 <br /> MB 720-262202/4 Method Blank 105 96 97 <br /> I <br /> Surrogate Legend <br /> BFB=4-Bromofluorobenzene <br /> DCA=1,2-Dichloroethane-d4(Surr) <br /> TOL=Toluene-d8(Surr) <br /> Method: 8015B - Diesel Range Organics (DRO) (GC) <br /> Matrix: Solid Prep Type: Total/NA <br /> Percent Surrogate Recovery(Acceptance Limits) <br /> TPH1 <br /> Lab Sample ID Client Sample ID (40-130) <br /> 720-91934-A-5-H MS Matrix Spike 0 D X <br /> 720-91934-A-5-1 MSD Matrix Spike Duplicate 0 D X <br /> 720-91968-1 WR#19721 67 <br /> LCS 720-262107/6-A Lab Control Sample 111 <br /> MB 720-262107/1-A Method Blank 100 <br /> Surrogate Legend <br /> TPH=p-Terphenyl <br /> TestAmerica Pleasanton <br /> Page 9 of 30 3/20/2019 <br />