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CHROMALA6, INC. <br /> EnArwrwntW Services(SDB) <br /> ' April 7, 1999 Submission #: 9904031 <br /> SECOR CONCORD <br /> Atten: TOM CROSBY <br /> ' Project: LYON INVESTMENTS Project#: 70139-004-02 <br /> Received: April 1, 1999 <br /> ' re: Surrogate report for 8 samples for Volatile Organics by GC/MS <br /> analysis . <br /> Method: SW846 Method 8260A Sept 1994 <br /> Lab Run#: 18218 <br /> Matrix: SOIL <br /> % Recovery <br /> Sample# Client Sample ID Surrogate Recovered Limits <br /> 235152-1 GP-2, 7 . 51 4-BROMOFLUOROBENZENE 102 74-121 <br /> ' 235152-1 GP-2, 7. 51 D4-1,2-DICHLOROETHANE 95 . 7 70-121 <br /> 235152-1 GP-2, 7. 51 D8-TOLUENE 99 .4 81-117 <br /> 235154-1 GP-4, 101 4-BROMOFLUOROBENZENE 104 74-121 <br /> 235154-1 GP-4, 101 D4-1,2-DICHLOROETHANE 99 .4 70-121 <br /> 235154-1 GP-4, 101 D8-TOLUENE 100 81-117 <br /> 235155-1 GP-5, 91 4-BROMOFLUOROBENZENE 105 74-121 <br /> 235155-1 GP-5, 91 D4-1, 2-DICHLOROETHANE 101 70-121 <br /> ' 235155-1 GP-5, 91 D8-TOLUENE 104 81-117 <br /> 235156-1 GP-6, 71 4-BROMOFLUOROBENZENE 103 74-121 <br /> 235156-1 GP-6, 71 D4-1, 2-DICHLOROETHANE 81 .5 70-121 <br /> 235156-1 GP-6, 71 D8-TOLUENE 112 81-117 <br /> 235157-1 GP-7, 51 4-BROMOFLUOROBENZENE 104 74-121 <br /> 235157-1 GP-7, 51 D4-1,2-DICHLOROETHANE 97.3 70-123 <br /> 235157-1 GP-7, 51 D8-TOLUENE 102 81-117 <br /> ' 235158-1 GP-8, 71 4-BROMOFLUOROBENZENE 103 74-121 <br /> 235158-1 GP-8, 71 D4-1,2-DICHLOROETHANE 96 .2 70-123 <br /> 235158-1 GP-8, 71 D8-TOLUENE 100 81-117 <br /> ' 235159-1 GP-9, 81 4-BROMOFLUOROBENZENE 102 74-123 <br /> 235159-1 GP-9, 81 D4-1, 2-DICHLOROETHANE 97 . 9 70-123 <br /> 235159-1 GP-9, 81 D8-TOLUENE 100 81-11' <br /> 235160-1 GP-10, 71 4-BROMOFLUOROBENZENE 103 74-123 <br /> ' 235160-1 GP-10, 71 D4-1, 2-DICHLOROETHANE 94 . 6 70-123 <br /> 235160-1 GP-10, 71 D8-TOLUENE 99 .8 81-11' <br /> % Recover3 <br /> Sample# OC Sample Type Surrogate Recovered Limits <br /> 235607-1 Reagent blank (MDB) 4-BROMOFLUOROBENZENE 104 74-123 <br /> 235607-1 Reagent blank (MDB) D4-1, 2-DICHLOROETHANE 101 70-123 <br /> t 235607-1 Reagent blank (NIDD) D8-TOLUENE 102 81-111 <br /> . <br /> V053 <br /> OCSURR1229 JIEWE107-Apr-9910 <br /> 1 <br /> 1220 QuarryLane Pleasanton, Calffomia 94566-4756 <br /> (925)484-1919 • Facsimile (925) 484-1096 <br /> Federal ID#68-0140157 <br />