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* SPL BATCH QUALITY CONTROL REPORT ** PAGEHOUSTON LABORATORY <br /> CA LUFT 8880 INTERCHANGE DRIVE <br /> HOUSTON,TEXAS 77054 <br /> PHONE(713)660-0901 <br /> Matrix: Aqueous Batch Id: HP J960724071700 <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 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> <3> <1> t Y Recovery Range <br /> Petroleum Hydrocarbons-Gas ND 1.0 0.9 90.0 50 - 150 <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 (Advisory) <br /> Result Recovery Result Recovery Difference RPD <br /> <2> <3> <1> _ <4> <1> <5> Max. Recovery Range <br /> GASOLINE PETR. HYDROCARBON ro.76 0.9 1.4 71.1 1.3 60.0 16.9 22 37 - 169 <br /> Analyst: RL = Values Outside QC Range <br /> Sequence Date: 07/24/96 NC - Not Calculated (Sample exceeds spike by factor of 4 or more) <br /> SPL ID of sample spiked: 9607844-02A ND = Not Detected/Below Detection Limit <br /> Sample File ID: JJ_621R.TX0 V Recovery = [( <1> - <2> ) / <3> ] x 100 <br /> Method Blank File ID: LCS I Recovery - (<1> / <3> I x 100 <br /> alank Spike File ID: JJ_599.TX0 Relative Percent Difference = 1 (<4> - <5> / [(c4> + <5> 1 x 0.5] x 100 <br /> atrix Spike File ID: JJ_618R.TXD (**) = Source: Temporary Limits <br /> Matrix Spike Duplicate File ID: JJ_619R.TXO I***) = Source: SPL-Houston Historical Data (3rd Q 195) <br /> SAMPLES IN BATCH(SPL ID): 9607844-02A 9607852-08A 9607852-07A 9607852-06A <br /> 9607859-09A 9607859-07A <br /> QC Officer <br />