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SPL BATCH QUALITY CONTROL REPORT ** <br /> HOUSTON LABORATORY <br /> CA LUFT 8880 INTERCHANGE DRIVE <br /> 0 HOUSTON. TEXAS 77054 <br /> ueous Batch Id: RP_0970530054100 PHONE(713)660-0901 <br /> i Units: mg/L <br /> L A B O R A T O R Y C 0 N T R 0 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 Recovery Range <br /> Petroleum Hydrocarbons-Gas ND 1.00 0.89 89.0 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 0 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 /> PETROLEUM HYDROCARBONS-GAS 0.33 0.9 1.00 74.4 1.02 76.7 3.04 50 50 - 150 <br /> Analyst: DAO + Values Outside QC Range. R = Data outside Method Specification limits. <br /> Sequence Date: 05/30/97 NC . Not Calculated (Sample exceeds spike by factor of 4 or more) <br /> SPL ID of sample spiked: 9705C36-01A ND - Not Detected/Below Detection Limit <br /> Sample File ID: O_F7007.TX0 4 Recovery = [( <1> - <2> ) / <3> ] x 100 <br /> Method Blank File ID: LCS % Recovery = (<1> / <3> ) x 100 <br /> Blank Spike File ID: 0,7E267A.T%0 Relative Percent Difference J(<4> - <5> I / [(<4> + <5> } x 0.5] x 100 <br /> Matrix Spike File ID: 0_F7003.TX0 (**) = Source: Temporary Limits <br /> Matrix Spike Duplicate File ID: O_F7004.TX0 (**•) Source: Temporary Limits <br /> SAMPLES IN BATCH(SPL ID): 9705036-04A 9705036-05A 9705C36-06A 9705036-07A <br /> 9705C36-08A 9705036-09A 9705C40-01A 9705C40-02A <br /> 9705C40-03A 9705C40-04A 9705C40-05A 970SC40-06A <br /> 9705C40-07A 9705040-08A 9705C40-09A 9705C44-01A <br /> 9705C92-03A 9705036-01A 9705C36-02A 9705C36-03A <br />