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* SPL BATCH QUALITY CONTROL REPORT ** HOUSTON LABORATORY <br /> California LOFT Manual for Gasoline 8880 INTERCHANGE DRIVE <br /> HOUSTON,TEXAS 77054 I <br /> a rix: queous Batch Id: VARE980516085600 <br /> PHONE(713)660-0801 ") <br /> Units: mg/L <br /> L A B 0 R A T O R Y C 0 N T R 0 L S A M P L E <br /> S P I K E Method Spike _ Blank Spike QC Limits(**) j <br /> C 0 M P 0 U N D S Blank Result Added Result Recovery (Mandatory) <br /> <2> <3> <1> % % Recovery Range <br /> Gasoline Range Organics ND 1.0 0.84 84.0 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 OC Limits(***) <br /> C 0 M P 0 U N D S Results Added Duplicate - Relative % (Advisory) <br /> Result Recovery Result Recovery Difference RPD <br /> <2> <3> <1> <4> <1> <5> Max. Recovery Range <br /> GASOLINE RANGE ORGANICS 0.08 0.90 0.93 94.4 0.76 75.6 22.1 36 36 - 160 <br /> w �r f <br /> = Values outside QC Range due to Matrix Interference (except RPD) <br /> Analyst: VHZ a = Data outside Method Specification limits. <br /> Sequence Date: 05/15/98 NC = Not Calculated (Sample exceeds spike by factor of 4 or more) <br /> SPL ID of sample spiked: 9805299-01A ND = Not Detected/Below Detection Limit , <br /> Sample File ID: EEE2219.TXO % Recovery = f( <1> - <2> ) / <3> ) x 100 <br /> Method Blank File ID: LCS % Recovery = (<1> / <3> ) x 100 r.:�.<•-:...# <br /> Blank Spike File ID: EEE2210,TXC Relative Percent Difference = 1(<4> - <5> / [(<4> + <5> ) x 0.51 x 100 —` <br /> Matrix Spike File ID: EEE2215.TXO (**) = Source: SPL-Houston Historical data (1st Q 197) <br /> Matrix Spike Duplicate File ID: EEE2216.TXO (***) = Source: SPL-Houston Historical Data (1st 0 197) <br /> kl <br /> SAMPLES IN BATCH(SPL ID): 9805299-08A 9805299-07A 9805299-09A 9805299-10A <br /> 9805299-11A 9805299-12A 9805299-03A 9805299-04A <br /> 9805371-01B 9805371-038 9805371-058 9805381-OIA ' <br /> 9805381-02A 9805381-03A 9805381-04A 9805299-02A <br /> 9805299-01A 9805299-05A 9805299-06A <br /> �1 <br /> ._I <br /> I <br /> .::�I <br />