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7n. PL BATCH QUALITY CONTROL REPORT ** HOUSTON LABORATORY <br /> Method Modified 8015A*** for Gasoline 8880 INTERCHANGE DRIVE HOUSTON, TEXAS 77054 <br /> 16ln�crjLx: Aqueous Batch Id: HP U971103124100 RHONE(713)660-0901 <br /> 1 Units: u9/L <br /> L A B 0 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> c3> <1> t t Recovery Range <br /> ' Gasoline Range Organics ND 1.0 0.86 86.0 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 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 ND 0.9 0.97108 0,97 108 ac <br /> 36 36 - 160 <br /> Analyst: fab = Values outside QC Range. < = Data outside Method Specification limits. <br /> Sequence Date: 11/03/97 NC = Not Calculated (Sample exceeds spike by factor of 4 or more) <br /> ' SPL ID of sample spiked: 9710847-05A ND = Not Detected/Below Detection Limit <br /> Sample File ID: UUK7092.TX0 % Recovery = (( <1> - <2> ) / <3> ] x 100 <br /> Method Blank File ID, LCS % Recovery = (<1> / <3> ) x 100 <br /> Blank Spike File ID: UUK7073.TX0 Relative Percent Difference - 1 (<4, - c5a 1 / [(<4> + <5> ) x 0.5] x 1.OD <br /> Matrix Spike File ID: UUK7089.TX0 (**) = Source: SPL-Houston Historical data (1st Q 197) <br /> Matrix Spike Duplicate File ID: UUK7090.TX0 (***) = Source: SPL-Houston Historical Data (lst Q 197) <br />' SAMPLES IN SATCH(SPL ID) : 971OA96-04C 9710A01-06A 971OA01-01A 971OA01-03A <br /> 971OA01-04A 971OA01-OSA 971OA01-02A <br />