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SPL BATCH QUALITY CONTROL REPORT ** HOUSTON LABORATORY <br /> California LUFT Manual for Gasoline 8880 INTERCHANGE DRIVE <br /> HOUSTON TEXAS 77054 <br /> Matrix Aqueous Batch Id HP_U971023022400 <br /> PHONE (713)660 0901 <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 £ 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> $ Recovery Range <br /> Gasoline Range Organics ND 1 0 0 90 90 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 k (Advisory) <br /> Result Recovery Result Recovery Difference RPD <br /> <2> <3> <1> <4> <1> <5> Max Recovery Range <br /> GASOLINE RANGE ORGANICS 0 85 0 90 2 1 139 1 9 117 17 2 36 36 - 160 <br /> Analyst MF * Values Outside QC Range a = Data outside Method Specification limits <br /> Sequence Date 10/23/97 NC = Not Calculated (Sample exceeds spike by factor of 4 or more) <br /> SPL ID of sample spiked 9710805-10A ND = Not Detected/Below Detection Limit <br /> Sample File ID UUJ7898 TXO % Recovery = [( <1> - <2> ) / <3> ] x 100 <br /> Method Blank File ID LCS % Recovery = (cl> / <3> ) x 100 <br /> Blank Spike File ID UUJ7893 TXO Relative Percent Difference (<4> - <Sn / [(<4> + <5> ) x 0 5] x 100 <br /> Wrix Spike File ID UUJ7919 TX0 (**) = Source SPL-Houston Historical data (1st Q 197) <br /> alrix Spike Duplicate File ID UUJ7920 TXO {***) = Source SPL-Houston Historical Data (1st Q 197) <br /> SAMPLES IN BATCH(SPL ID) 9710855-07A 9714877-OIA <br />