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* SPL BATCH QUALITY CONTROL REPORT •* HOUSTON LABORATORY <br /> California LUFT Manual for Gasoline 8880 INTERCHANGE DRIVE <br /> HOUSTON,TEXAS 77054 mWOO CwdrZ <br /> O PHONE(719)660-0901 <br /> trix: Aqueous Batch Id_ HP_5994127153300 <br /> Units: mg/L <br /> L A B O R A T 0 R Y C O N T R O L S A M P L E <br /> S P I K E Method Spike Blank Spike - QC Limits(**) <br /> C O M P O U N D S Blank Result Added Result Recovery (Mandatory) <br /> <2> <3> <1> t t Recovery Range <br /> Gasoline Range Organics ND 1.0 0.75 75-0 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 Adviso <br /> Result Recovery Result Recovery Difference RPD <br /> <2> <3> <1> <4> <1> <5> Max. Recovery Range <br /> GASOLINE RANGE ORGANICS ND 0.90 1.0 111 1.1 122 9.44 36 36 - 160 <br /> • Values outside QC Range due to Matrix Interference (except RPD) <br /> Analyst: GS = Data outside Method Specification limits. <br /> Sequence Date: 01/27/99 NC = Not Calculated (Sample exceeds spike 6y factor of 4 or more} <br /> SPL ID of sample spiked: 9901A24-DlA ND = Not Detected/below Detection Limit <br /> Sample File IDS SSA4075.TX0 % Recovery = {( <1> - <2> } / <3> I x 100 <br /> Method Blank File ID: LCS % Recovery = (<l> / <3> ) x 100 <br /> Blank Spike File ID: SSA4068.TX0 Relative Percent Difference - 1 (<4> - <5> 1 / I (<41 � <So ) x D.SI x 100 <br /> Matrix Spike File ID: SSA4071.TXG (**1 Source: SPL-Houston Historical data (1st Q 197) <br /> Matrix Spike Duplicate File ID: SSA4072.TXD ('**1 Source: SPL-Houston Historical Data Ilst Q 197) <br /> SAMPLES IN BATCH(SPL ID) : 9901A17-12A 9901A21-02A 9901A24-DIA 9901A21-05A <br /> 9901A21-01A <br /> s <br />