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** SPL BATCH QUALITY CONTROL REPORT ** pAGVOUSTON LABORATQRY,. <br /> Modified 8015 - Gasoline 8880 INTERCHANGE DRIVE <br /> HOUSTON. TEXAS 77054 <br /> 0 PHONE(713)660.0901 <br /> Matrix: Aqueous Batch Id: HP_J960504091000 <br /> Units: mg/L <br /> L A B O R A T O R Y C O N T R O L S A M P L E <br /> S P I K E Method Spike Blank S ike QC Limits(**) <br /> C O M P O U N D S Blank Result Added Result Recovery (Mandatory) <br /> <2> <3> <1> % t Recovery Range <br /> Gasoline Petr. Hydrocarbon ND 1.0 0.88 88.0 56 - 130 <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 4 Adviso <br /> Result Recovery Result Recovery Difference RPD <br /> <2> <3> <1> <4> <1> <5> Max. Recovery Range <br /> GASOLINE PETR. HYDROCARBON ND 0.9 0.72 80.0 0,71 78.9 1.38 22 37 - lfi9 <br /> Analyst: VHZ Values Outside QC Range <br /> Sequence Date: 05/04/96 NC Not Calculated {Sample exceeds spike by factor of 4 or more) <br /> SPL ID of sample spiked: 9604002-02A NO Not Detected/Below Detection Limit <br /> Sample File ID: JJ_586.TXO t Recovery - [( <1> - <2> ) / <3> ] x 100 <br /> Method Blank File ID; LCS 4 Recovery - (<1> / <3> } x 100 <br /> Blank Spike File ID: JJ_573.TX0 Relative Percent Difference (<4> - <5> / [(<4> + <5> 1 x 0.5] x 100 <br /> Matrix Spike File ID: JJ-596.TX0 (**) = Source: SPL-Houston Historical data (3rd Q 195) <br /> Matrix Spike Duplicate File ID: JJ_597.TX0 (***I - Source: SPL-Houston Historical Data (3rd Q 195) <br /> SAMPLES IN BATCH(SPL Imo: 9604B06-01A 9604BO6-02A 9604806-03A 9604CO2-02A <br /> 9604BO2-01A 9604B02-02A 9604BO2-03A 9604BO2-04A <br /> i <br /> QC Officer <br />