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•* SPL BATCH QUALITY CONTROL REPORT ** PAGE HOUSTON LABORATORY <br /> Mod. 8015 - Diesel 8880 INTERCHANGE DRIVE <br /> ® HOUSTON,TEXAS 77054 <br /> ':, Matrix: Aqueous _ PHONE(713)660-0901 <br /> Batch Id: HP T970401092500 <br /> Unita. mg/L <br /> B L A N K 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 k (AdvisorV) <br /> Result Recovery Result Recovery Difference RPD <br /> c2> c3> cl> <4> <1> <5> Max. Recovery Range <br /> DIESEL PETR. HYDROCARBONS ND 5.0 4.72 94.0 4.73 94.2 0.213 43 20 - 130 <br /> Analyst: RR • - Values Outside QC Range. r - Data outside Method Specification limits. <br /> Sequence Date: 04/01/97 NC = Not Calculated (Sample exceeds spike by factor of 4 or more) <br /> Method Blank File ID: ND = Not Detected/Below Detection Limit <br /> Sample File ID: 1 Recovery - [( <1> - <2> ) / <3> ] x 100 <br /> Blank Spike File ID: T C7501.TX0 Relative Percent Difference = I (<4> - <5> I / [(<4> + c5> ) x 0.51 x 100 <br /> Matrix Spike File ID: f**F = Source: SPL-Houston Historical Data <br /> Matrix Spike Duplicate File ID: <br /> SAMPLES IN BATCH(SPL ID) : 9703E20-01B 9703E20-03B 9703E19-02B 9703382-03B <br /> I <br />