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07/12/96 <br /> QUALITY CONTROL REPORT DHS Certification #1400 <br /> Volatile Analyses <br /> Client: DEL-TECH Date Received: 07/10/96 <br /> 10624 Olive Ave Date Started: : 07/11/96 <br /> Oakdale, CA 95361 Date Complete: 07/12/96 <br /> ATTN: Don Light <br /> Lab Report#: 1-16071004 Lab Sample #s PH6071069,1071-1074,1076 <br /> Linear! Check: <br /> BTEX Benzene 0.9997 TPH Gasoline M9997 <br /> Toluene 0.9997 TPH Diesel N/A <br /> Ethyl Benzene 0.9999 Motor Oil N/A <br /> Xylenes M9999 TRPH (418.1) N/A <br /> MTBE 0.9998 <br /> Std % Repeatability MTBE Benzene Toluene @h Benz Xylenes <br /> BTEC 103 101 106 103 98 <br /> TPH Gasoline 97 TPH Diesel N/A <br /> . TRPH (418.1) N/A TPH Motor Oil N/A <br /> Matrix Spike Recoveries MS MSD RPD <br /> MTBE 1020 104.0 1.9 <br /> BTEX Benzene 100.0 99.0 1.0 <br /> Toluene 104.0 100.0 3.9 <br /> Ethyl Benzene 108.0 107.0 0.9 <br /> Xylenes 96.0 97.0 1.0 <br /> TPH Gasoline 87.0 93.0 6.7 <br /> TPH Diesel N/A N/A <br /> TRPH 418.1 N/A <br /> Method Blank MTBE Benzene Toluene Eth Benz Xylenes <br /> BTEX <3 u L <.3 ug/L <.3 u L <.3 u L <.3 u L <br /> TPH Gasoline <30 ug !- TPH Diesel/MO N/A TRPH(418.1) N/A <br /> Lab Control Sample% Recove EPA Performance Acceptance Range <br /> BTEX Benzene 96 37.0 - 151.0 <br /> Toluene 101 47.0 - 150.0 <br /> Ethyl Benz 102 36.9 - 1620 <br /> Xylenes 101 427 - 137.9 <br /> TPH Gasoline 91 35.0 - 1 3C <br /> TPH Diesel N/A 45.1 - 135.2 <br /> TRPH (418.1) N/A N/A <br /> Gloria %ling, Lab Director <br />