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SEQUOIA ANALYTICAL <br /> � A 1CAL <br /> 680 Chesapeake Drive • Redwood City, CA 94063 <br /> (415) 364-9600 FAX(415) 364-9233 <br /> -or , ,,.>v,aoi, <br /> r ,.r w,...r �rrx�. <br /> RESNAgient Project IDA 54006 02, Coca Cola Stockton <br /> 11710 Main Street Matroc Water <br /> Escalon, CA 95320 <br /> -Attention Jeanne Homsey ` µOC Sample Group u3F36501 4 yY ,v + X uv mrir��m h, Reported. Jun 15, 1993 <br /> ^nt . '�• .r « <br /> QUALITY CONTROL DATA REPORT <br />' ANALYTE Ethyl- <br /> Benzene Toluene Benzene Xylenes Diesel <br /> Method: EPA$020 EPA 5020 EPA 8020 EPA 8020 EPA 8015 <br /> Analyst: M Nipp M Nipp M Nipp M Nipp E.Cunanan <br /> Conc. Spiked: 10 10 10 30 300 <br />' Units: u9/L 119/L u9/L u9/L u9/L <br /> LCS Batch#: BLK051093 BLK061093 BLK061093 BLK061093 BLK060493 <br />' Date Prepared: N/A N/A N/A N/A 6/4/93 <br /> Date Analyzed: 6/10/93 6/10/93 6/10/93 6/10/93 6/7/93 <br /> Instrument I.D.#: GCHP 2 GCHP-2 GCHP 2 GCHP-2 GCHP-5 <br /> LCS% <br /> Recovery: 86 86 86 87 83 <br /> Control Limits: 80-120 8()-120 80.120 80-120 SD-150 <br /> MS/MSD <br /> Batch#: 3F32911 3F32911 3F32911 31`32911 3F15701 <br /> Date Prepared: N/A N/A N/A N/A 6/4/93 <br /> Date Analyzer: 6/10/93 6/10/93 6/10/93' 6/10/93 6/7M <br /> Instrument E.D.#: GCHP-2 GCHP-2 GCHP-2 GCHP-2 GCHP-5 <br /> Matrix Spike <br /> % Recovery: 100 100 110 103 73 <br />' Matrix Spike <br /> Duplicate% <br /> Recovery: 110 110 110 103 72 <br /> Relative% <br /> Difference- 95 95 00 00 14 <br /> SEQUOIA ANALYTICAL Please Note <br /> The LCS is a control sample of known,interferent free matrix that is analyzed using the same reagents, <br /> preparation and analytical methods employed for the samples The LCS%recovery data is used for <br /> validation of sample batch results Due to matrix effects,the OC limits for MS/MSD's are advisory only <br /> Vickie Tague and are not used to accept or reject batch results <br /> Project Manager 3F36W1 WAT <3> <br />