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' � alscience <br />' Z nvironmenta! <br /> Tabora#ories, Inc. <br />' QUALITY ASSURANCE SUMMARY <br /> Method EPA 624 <br /> Environmental Audit, Inc Work Order No 94-09-242 <br /> Page 1 of 1 Date Analyzed 09119194 <br /> Matrix Spike/Matrix Spike Duplicate <br /> Sample Spiked 94-09-085--4 <br /> Control Control <br /> Anal MS%REC MSD%REC Limits ° RPD Limits <br /> Benzene 101 97 37 - 151 4 0 -25 <br /> Chlorobenzene 100 95 37 - 160 5 0 - 25 <br /> Toluene 101 97 47 - 150 4 0 -25 <br /> 1,1-Dichloroethene 106 104 59 - 155 2 0 - 25 <br />' Trichloroethene 102 103 71 - 157 1 0 - 25 <br /> tSurrogate Recoveries (in %) <br /> S1 S2 S3 <br /> 94-09-242-1 103 102 105 <br /> 94-09-242-2 100 100 104 <br /> 1 <br /> Water%REC Soil %REC <br /> Acceptable Limits Acceptable Limits <br />' S1 > 1,2-Dichloroethane-d4 76 - 114 70- 121 <br /> S2 >Toluene-d8 88 - 110 81 - 117 <br /> S3> 1,4-Bromofluorobenzene 86- 115 74- 121 <br /> Reviewed and approved pp ,--_- on _CLl�;L/1994 <br /> William H Chris nsen <br /> Deliverables Manager <br /> 11631 Seaboard Circle, Stanton, CA 90680 TEL (714) 895-5494 FAX (714) 894-7501 <br />