Laserfiche WebLink
J Sequoia 680 Chesapeake Drive Redwood City, CA 94063 (415) 364-9600 FAX(415) 364-9233 <br /> 404 N.Wise%Lane Walnut Creek, CA 94598 (510) 999,9600 FAX(510)988,9673 <br /> Analytical 819 Striker A,,,,.e.Suite 8 Sacramento,CA 95834 (916) 921.96M FAX(916)921.01()0 <br /> Terra Vac Corp. Client Project ID: Chevron #94064 <br /> 1651 Alvarado Street Matrix: Liquid <br /> i San Leandro, CA 94577 <br /> Attention: Cliff Garratt.r OC Sample Group: 7100031-038 <br /> Reported: Oct 13, 1997. <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Methanol Ethanol Iso-Propanol Methanol Ethanol Iso-Propanol <br /> QC Batch#-. GC100397 GC100397 GC100397 GC100897 GCi00897 GC100897 <br /> ISHSHSB ISHSHSB ISHSHSB ISHSHSB ISHSHSB ISHSHSB <br /> Analy. Method: ISHS ISHS <br /> ISHS ISHS ISHS ISHS <br /> Prep. Method: HS HS HS HS HS HS <br /> Analyst: T.Tran T.Tran T.Tran T.Tran T.Tran T.Tran <br /> MS/MSD #: 9709H24-02 970SH24-02 9709H24-02 9710236-11 9710236-11 9710236-11 <br /> Sample Conc.: N.D. N.D. <br /> N.D. N.D. N.D. <br /> N.D. <br /> Prepared Date.- 10/3/97 10/3/97 10/3/97 10/8/97 10/8/97 10/8/97 <br /> Analyzed Date: 10/3/97 10/3/97 10/3/97 10/8/97 10/8/97 10/8/97 <br /> Instrument I.D.#: GCV-o1 GCV-01 GCV-o1 GCV-01 GCV-01 GCv-o1 <br /> Conc. Spiked: 8.0 mg/L 8.0 mg/L 8.0 mg/L 8.0 mg/L 8.0 mg/L 8.0 mg/L <br /> Result: 8.0 8.0 7.8 8.0 9.2 8.4 <br /> MS % Recovery: 100 100 98 100 115 105 <br /> Dup. Result: 8.9 8.4 8.1 6.0 5.6 5.4 <br /> MSD % Recov.: '111 105 101 75 70 68 <br /> RPD: 11 4.9 3.8 29 49 43 <br /> RPD Limit: 0-50 0-50 0-50 0-50 0-50 0-50 <br /> LCS #: BLK100797 BLK100797 BLK100797 BLK100897 BLK100897 13LK100897 <br /> Prepared Date: 10/7/97 10/7/97 10/7/97 10/8/97 10/8/97 10/8/97 <br /> Analyzed Date: 10/7/97 10/7/97 10/7/97 10/8/97 10/8/97 10/8/97 <br /> Instrument I.D.#: GCV-01 GCV-01 GCV-01 GCV-01 GCV-01 GCV-01 <br /> Conc. Spiked: 8.0 mg/L 8.0 mg/L 8.0 mg/L 8.0 mg/L 8.0 mg/L 8.0 mg/L <br /> LCS Result: 7.4 7.6 7.5 7.4 8.1 7.8 <br /> LCS % Recov.: 93 95 94 93 101 98 <br /> MS/MSD <br /> LCS 50-150 50-150 50-150 50-150 50-150 50-150 <br /> Control Limits <br /> Please Note: <br /> The LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents <br /> SEQUOIA ANALYTICAL, #1210 preparation,and analytical methods employed for the samples. The matrix spike is an aliquot of sample <br /> fortified with known quantities of specific compounds and subjected to the entire analytical procedure. If <br /> he <br /> 0, he recovery of analytes from the matrix spike does not fall within specified control limits due-to matrix <br /> t, <br /> Melissa A. Brewer ..&"kq�interference,the LCS recovery is to be used to validate the batch. <br /> Client Services Representative MS=Matrix Spike, MSD=WS-Duplicate,RPD=Relative%Difference <br /> 7100031.TVC <13> <br />