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rr�r <br /> L BATCH QUALITY CONTROL REPORT `* PAGE HOUSTON LABORATORY <br /> Modified 8015 - Gasoline 8880 INTERCHANGE DRIVE <br /> ® <br /> HOUSTON <br /> 4 <br /> PHONE(7 3)660-0905 <br /> Matrix Aqueous Batch Id HP_5950705150900 <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 Q <br /> S P I K E Method Spike Blank Spike QC Limits(*•) <br /> C 0 M P 0 U N D S Blank Result Added Result Recovery (Mandatory) <br /> c2> c3> <1> t t Recovery Range <br /> Petroleum Hydrocarbons ND 1 00 1 22 122 56 - 139 <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/MSA QC Limits(***) <br /> C O M P O U N D S Results Added Duplicate Relative t IAdvisor0 _ <br /> Result Recovery Result Recovery Difference RPD <br /> <2> <3> <1> <4> <1> <5> Max Recovery Range <br /> Petroleum Hydrocarbons ND 0 9 1 25 139 1 22 135 2 18 18 40 - 158 <br /> Analyst LFD ` = Values Outside QC Range <br /> Sequence Date 07/05/95 NC - Not Calculated {Sample exceeds spike by factor of 4 or more) <br /> SPL ID of sample spiked 95(16982-06A ND = Not Detected/Below Detection Limit <br /> Sample File ID 5_134 TXO t Recovery = (f <1> - <2> ) / <3> 1 x 100 <br /> Method Blank File ID LCS It Recovery . 1<1> / <3> 1 x 100 <br /> Blank Spike File ID 5_116 TXO Relative Percent Difference I<4> - <5> ((<4> + c5> y x 0 53 x 100 <br /> Matrix Spike File ID S_119 TXO (*`) = Source SPL-Houston Historical Data <br /> Matrix Spike Duplicate File ID 5120 TXO (`••) Source SPL-Houston Historical Data <br /> r <br /> r <br /> i <br /> I I <br /> SAMPLES IN BATCH SPL ID) 9506982-07A 9506982-OIA 9506982-02A 9506982-03A , <br /> 9506982-04A 9506982-05A 9506982-06A 9506962-OBA <br /> r ' <br /> I I I <br /> Idelis Williams QC Officer <br /> ti,; <br /> II II I �' I I f ! 'I I! �k <br /> ,II II {III, E � II ,I 'E 11 I' � � � €I '�'I, Ea �— <br />