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1 <br /> 1 <br /> Q UAL I T Y C O N T R O L R E S U L T S <br /> Job Number 992528 Report Date : 12/14/1999 <br />' CUSTOMER IT Group PROJECT- Southland - Martinez ATTN Rhonda Teicheira <br /> QC Type Description ==Reag Code Lab ID Dilution Factor Date Time <br />' Test Method EPA 8015Mod Batch 10011 Analyst evd <br /> Method Description Total Volatile Petroleum Hydrocarbons Units ug/L <br />' MS Method Blank 12/07/1999 1233 <br /> Parameter/Test Description QC Result QC Result True Value Orig Value Calc. Result * Limits F <br />�asoline Range Petroleum Hydrocarbons 0 <br /> LC5 Laboratory Control Sample 09111101 12/07/1999 1259 <br />' Parameter/Test Description QC Result QC Result True Value Orig Value Calc Result * Limits F <br /> Gasoline Range Petroleum Hydrocarbons 1069 1000 0 106 9 50-150 <br /> LCD Laboratory Control Sample Duplicate 09111101 12/07/1999 1325 <br /> Parameter/Test Description QC Result QC Result True Value Orig Value Calc Result * Limits F <br /> ine Range Petroleum Hydrocarbons 1104 1069 1000 0 110 4 50-150 <br /> 3 2 30 <br /> MS Matrix Spike 09102203 992549-7 12/07/1999 1601 <br /> Parameter/Test Description QC Result QC Result True Value Orig Value Calc Result * Limits F <br /> Gasoline Range Petroleum Hydrocarbons 1238 1000 0 134 110 50-150 <br /> MSD Matrix Spike Duplicate 09102203 992549-7 12/07/1999 1626 <br /> Parameter/Test Description QC Result QC Result True Value Orig Value Calc Result * Limits F <br /> Gasoline Range Petroleum Hydrocarbons 1117 1238 1000 0 134 98 50-150 <br /> 10 3 30 <br />' Test Method EPA 8015Mod Batch 9956 Analyst evd <br /> Method Description Total Volatile Petroleum Hydrocarbons Units ug/L <br /> MB Method Blank 12/03/1999 1700 <br /> Parameter/Test Description flC Result QC Result True Value Orig Value Calc Result * Limits F <br />'Gasoline Range Petroleum Hydrocarbons 0 <br /> 0 <br />' Page 7 * %=% REC, R=RPD, A=ABS Diff , D=% Diff. <br />