ARCHIVED REPORTS XR0003371 - Laserfiche WebLink

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1 LA CORE LACOU _ BORATORIE S Q U A L I T Y C 0 N T R 0 L R E S U L T S Job Number 990877 Report Date 05/31/1999 ' CUSTOMER IT Group PROJECT- Southland - Martinez ATTU Shelby'Lathrop OC Type Description Reag Code Lab ID Dilution Factor Date Time LCD Laboratory Control Sample Duplicate 09043002 05/22/1999 0649 Parameter/Test Description QC Result QC Result True Value Or19 Value Calc Result * Limits Benzene 49 38 51 64 50 98 8 39-150 4 5 20 Ethylbenzene 47 06 49 30 5C 94 1 32-16C 4 6 20 Methyl-t-Butyl Ether (MTBE) 289 84 311 52 250 115 9 50-150 7 2 25 Toluene 49 08 51 42 50 98 2 46-148 4 7 20 Xylenes (total) 146 96 153 96 150 98 0 75-125 4 7 20 MS Matrix Spike 09043001 990894-3 05/22/1999 1227 Parameter/Test Description OC Result QC Result True Value Orig Value Calc Result * Limits Benzene 51 17 50 C 00 102 3 39-150 4Ethylbenzene 48 50 50 C 00 97 0 32-160 hyl-t-Butyl Eth a (MTBE) 292 92 250 0 00 117 2 50-150 uene 50 78 50 0 00 101 6 46 148 €enes (total) 152 81 150 0 CO 101 9 75-125 ' MSD Matrix Spike Duplicate 09043001 990890-3 05/22/1999 1253 Parameter/Test Description QC Result OC Result True Value O n g Value Calc Result * Limits Benzene 52 20 51 17 50 0 00 104 4 39-150 2 20 Ethylbenzene 49 31 48 50 50 0 00 98 6 32-160 2 20 Methyl t-Butyl Ether {MTBE) 319 43 292 92 250 O 00 127 8 50-150 9 25 Toluene 51 90 50 78 50 0 0C 103 S 46 148 2 20 Xylenes (total) 154 90 152 81 150 0 00 103 3 75-125 1 20 Test Method EPA 8020A Batch 6392 Analyst evd Method Description Votatile Organics -Aromatics Units ug/L — MB Method Blank 05/24/1999 1fl42 jj Parameter/Test Description OC Result OC Result True Value _ Orig Value Calc Result * Limits Benzene 0 00 Ethylbenzene 0 00 Methyl t-Butyl Ethc1 (MTBE) 0 00 ToluenC 0 00 Xylenes (total) 0 00 Page 44 * A-4 REC, R=RPD, A=ABS Diff , D=/, Diff