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Surrogate Summary <br /> Client: ProTech Consulting and Engineering Job ID: 720-92770-1 <br /> Project/Site: SRVHS Stockpile <br /> Method: 8081A - Organochlorine Pesticides (GC) <br /> Matrix: Solid Prep Type: Total/NA <br /> Percent Surrogate Recovery(Acceptance Limits) <br /> TCX1 DCBP1 <br /> Lab Sample ID Client Sample ID (21-145) (21-136) <br /> 720-92770-10 SP-2A,B,C,D 86 82 <br /> Surrogate Legend <br /> TCX=Tetrachloro-m-xylene <br /> DCBP=DCB Decachlorobiphenyl <br /> Method: 8081A - Organochlorine Pesticides (GC) <br /> Matrix: Solid Prep Type: Total/NA <br /> Percent Surrogate Recovery(Acceptance Limits) <br /> TCX1 DCBP2 <br /> Lab Sample ID Client Sample ID (21-145) (21-136) <br /> 720-92770-5 SP-1A,B,C,D 82 75 <br /> 720-92770-5 MSD SP-1A,B,C,D 90 93 <br /> Surrogate Legend <br /> TCX=Tetrachloro-m-xylene <br /> DCBP=DCB Decachlorobiphenyl <br /> Method: 8081A - Organochlorine Pesticides (GC) <br /> Matrix: Solid Prep Type: Total/NA <br /> Percent Surrogate Recovery(Acceptance Limits) <br /> TCX2 DCBP2 <br /> Lab Sample ID Client Sample ID (21-145) (21-136) <br /> 720-92770-5 MS SP-1A,B,C,D 94 87 <br /> LCS 720-264880/2-A Lab Control Sample 71 109 <br /> MB 720-264880/1-A Method Blank 73 97 <br /> Surrogate Legend <br /> TCX=Tetrachloro-m-xylene <br /> DCBP=DCB Decachlorobiphenyl <br /> Method: 8082 - Polychlorinated Biphenyls (PCBs) by Gas Chromatography <br /> Matrix: Solid Prep Type: Total/NA <br /> Percent Surrogate Recovery(Acceptance Limits) <br /> TCX1 DCBP1 <br /> Lab Sample ID Client Sample ID (45-132) (42-146) <br /> 720-92770-5 SP-1A,B,C,D 79 88 <br /> 720-92770-5 MS SP-1A,B,C,D 77 85 <br /> 720-92770-5 MSD SP-1A,B,C,D 82 89 <br /> 720-92770-10 SP-2A,B,C,D 81 88 <br /> LCS 720-264881/2-A Lab Control Sample 70 89 <br /> MB 720-264881/1-A Method Blank 72 93 <br /> Surrogate Legend <br /> TCX=Tetrachloro-m-xylene <br /> DCBP=DCB Decachlorobiphenyl <br /> Eurofins TestAmerica, Pleasanton <br /> Page 17 of 46 5/6/2019 <br />