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r .. <br /> URROGATE RECOVERY SUMbIARY PAGE 4 <br /> 03/21/97 14:29 :43 HOUSTON LABORATORY <br /> 8880 INTERCHANGE DRIVE <br /> N ® AMOUNT CONC. RECOVERY LIMITSDusroN. TEXAS 77054 . <br /> ADDED MEASURED PHONE(713)660.0901 <br /> 4-Bromofluorobenzene 30 30 100 43- 135 <br /> Method 8020A*** BATCH#:HP N970316084900 <br /> WORK ORDER: Matrix Spike CLIENT SAMPLE ID:9703631-04A <br /> 1, 4-DIFLUOROBENZENE 30 30 100 70- 131 <br /> 4-BROMOFLUOROBENZENE 30 29 97 43- 135 <br /> Method 8020A*** BATCH#:HP N970316084900 <br /> WORK ORDER: Matrix Spike Dup. CLIENT SAMPLE ID: 9703631-04A <br /> 1, 4-Difluorobenzene 30 30 100 70- 131 <br /> 4-Bromofluorobenzene 30 28 93 43- 135 <br /> �e = Recovery outside of control limits <br /> * = Methods for Chemical Analysis of Water & Wastes,1983,EPA <br /> ** = Standard Methods for Examination of Water & Wastewater, 17th <br /> *** = Test Methods for Evaluating Solid Waste,EPA SW846,3rd <br /> I <br /> • <br />