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SPL BATCH QUALITY CONTROL REPORT ** <br /> California LUFT Manual for Gasoline HOUSTON LABORATORY <br /> 8880 INTERCHANGE DRIVE <br /> ® HOUSTON, TEXAS 77054 <br /> Batch Id: HP_N991015155400 PHONE(713)660-0901 <br /> Units: mg/L <br /> L A E O R A T O R X C O N T R O L S A M P L E <br /> S P I K E Method Spike Blank SpikeQC Limits(**) <br /> C 0 M P 0 0 N D S Blank Result Added Result Recovery (Mandatory} <br /> <2> <3> <1> a g Recovery Range <br /> Gasoline Range Organics ND 1.0 1.0 100 64 - 131 <br /> M A T R I X S P I K E S <br /> S P I K E Sample Spike Matrix Spike Matrix Spike MS/MSD QC Limits[***) <br /> C O M P O U N D S Results Added Duplicate Relative v (Advisory) <br /> Result Recovery Result Recovery Difference RPD _— <br /> <2> c3> <1> <4> <1> <5> Max_ Recovery Range <br /> GASOLINE RANGE ORGANICS 711 0.90 8.4 NC r 8.8 NCJ NC 1 36 36 - 160 <br /> * = Values outside QC Range due to Matrix Interference (except RFD) <br /> Analyst: WLR e = Data outside Method Specification limits. <br /> Sequence Date: 10/15/99 NC - Not Calculated (Sample exceeds spike by factor of 4 or more) <br /> SPL ID of Sample spiked: 99100151-04 ND = Not Detected/Below ]Detection Limit <br /> Sample File ID: NNJ2187.TXD & Recovery - [( <1> - <2> ) / <3> 1 x 100 <br /> ethod Blank File ID: LCS % Recovery = (<i> / <3> ) x 106 <br /> ank spike File ID: NNJ2179.TX0 Relative Percent Difference <5> / [(<4P + 45> ) x 0.5j x 100 <br /> Matrix Spike File ID: NNJ2183.TXD f**1 t Source. SPL-Houston Historical data (1st Q 197) <br /> Matrix Spike Duplicate File ID: NNJ2184.TXo (***} Source: SPL-Houston Historical Data (let Q 197) <br /> SAMPLES IN BATCH(SPL ID) - 9910310-04A 9910414-04A 9910418-04A 9910256-01A <br /> 9910310-05A <br />