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02123/86 <br />QUALITY CONTROL REPORT DHS Certification #1400 <br />Volatile Analyses <br />Client: DEL -TECH Date Received: 02/21/96 <br />10624 Olive Ave. Date Started: 02/21/96 <br />Oakdale. CA 95361 Date Complete: 02123/96 <br />ATTN: DON LIGHT <br />Lab Report #: H6022102 <br />I L nearity Check: <br />BTEX Benzene 0.9996 <br />Toluene 0.9989 <br />Ethyl Benzene 0.9990 <br />Xylenes 0.9996 <br />1 Std % Repeatability_ Benzene <br />BTEX 93 <br />TPH Gasoline 88 <br />TRPH (418.1) N/A <br />Matrix Spike Recoveries f <br />BTEX <br />Benzene <br />97 <br />Toluene <br />102 <br />Ethyl Benzene <br />94 <br />Xylenes <br />TPH <br />Gasoline <br />TPH <br />Diesel <br />TRPH <br />(418.1) <br />Method Blank- <br />BTEX <br />TPH Gasoline <br />MS <br />98.0 <br />as n <br />`Jtl.0 <br />07 n <br />Lab Sample #s PH6022381-2386 <br />TPH Gasoline <br />TPH Diesel <br />Motor Oil <br />TRPH (418.1) <br />Toluene Eth Benz <br />Xylenes <br />95 97 <br />97 <br />TPH Diesel <br />102 <br />TPH Motor Oil <br />94 <br />100 <br />MSD <br />Xylenes <br />99.0 <br />- <br />TPH <br />100.0 <br />89 <br />101.0 <br />Diesel <br />__101.0 <br />TRPH <br />115.0 <br />N/A <br />Benzene Toluene Eth Benz Xylenes <br /><3 u.g/Kg <3 ug/Kg <3 u.g1Kg <3 ug/Kg <br />51 mg/Kg TPH Diesel/MO <5 mg/Kg TRPH(418.1) <br />I Lab Control Sample 46 Recovery J <br />BTEX <br />Benzene <br />102 <br />150.0 <br />Toluene <br />94 <br />42.7 - <br />Ethyl Benzene <br />100 <br />130.1 <br />Xylenes <br />105 <br />TPH <br />Gasoline <br />89 <br />TPH <br />Diesel <br />97 <br />TRPH <br />(418.1) <br />N/A <br />Gloria Poling, Lab Director <br />j' 1Q,7 <br />0.9999 <br />0.9983 <br />0.9995 <br />WA <br />3.0 <br />- 4.0- ._. <br />2.6 <br />ERR <br />NIA <br />NIA - <br />EPA Performance Acceptance Range <br />37.0 - <br />151.0 <br />47.0 - <br />150.0 <br />36.9 - <br />162.0 <br />42.7 - <br />137.9 <br />35.0 - <br />130.1 <br />45.1 - <br />135.2 <br />WA <br />* Spike insignificant relative <br />to sample concentration <br />