Laserfiche WebLink
� N <br /> 4D819Sequoia 680 Chesapeake OrNe Redwood City CA 94063 (650)364-9600 FAX(650) 364-9233 <br /> 404 N Wiget Lane Walnut Creek.CA 94598 (925)988-9600 FAX(925)988-9673 <br /> Analytical <br /> Striker Avenue.Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)92I-0100 <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)79Z-0342 <br /> rte- t f' <br /> rGi�ttler Ryan/Geostrategiesrr Client Proj6cfID v rFormer Unocal SS#2859 H VY n <br /> X6747 Sierra Court, Ste.! Matnx: Liquid <br /> ,Dublin, CA 94568 n <br /> °'Attention Deanna Harding Work Order# w 9812431 06-10 Reported Dec 22, 1998 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte. Benzene Toluene Ethyl Xylenes BTEX as TPH <br /> Benzene <br /> QC Batch#- GC121598802002A GC121598802002A GC121598802W2A GC121598802002A GC121598802002A <br /> Analy Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 EPA 8015M <br /> Prep. Method: EPA 5030 EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst: C Westwater C Westwater C Westwater C Westwater C Westwater <br /> MS/MSD #: 8120691 8120691 8120691 8120691 8120691 <br /> Sample Conc : ND N D N D N D N D <br /> Prepared Date: 12/15/98 12/15/98 12/15/98 12/15/98 12/15/98 <br /> Analyzed Date: 12/15/98 12/15/98 12/15/98 12/15/98 12/15/98 <br /> Instrument I D # HP2 HP2 HP2 HP2 HP2 <br /> Conc. Spiked 20ug/L 20pg/L 20ug/L 60ug/L 340ug/L <br /> Result: 18 18 19 62 310 <br /> 4rS % Recovery- 90 90 95 103 91 <br /> Dup. Result: i8 18 19 61 320 <br /> MSD % Recov : 90 90 95 102 94 <br /> RPD 00 00 00 16 32 <br /> RPD Limit: 0-20 0-20 0-20 0-20 0-50 <br /> LCS #: LC6121598 LCS121598 LCS121598 LCS121W8 LCS121598 <br /> Prepared Date 12/15/98 12/15/98 12/15/98 12/15/98 12/15/98 <br /> Analyzed Date 12/15/98 12/15/98 12/15/98 12/15/98 12/15/98 <br /> Instrument I.D.#- HP2 HP2 HP2 HP2 HP2 <br /> Conc.Spiked: 20ug/L 20ug/L 20ug/L 60ug/L 340 ug/L <br /> LCS Result: 18 17 19 60 330 <br /> LCS %Recov.: 90 85 95 100 97 <br /> LCS 70.130 70-130 70-130 70.130 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 /> *OEN LYTICAL preparation,and analytical methods employed for the samples. The matrix spike Is an aliquot of sample <br /> fordfEed with known quantities of specific compounds and subjected to the entire analytical procedure 0 <br /> the recovery of analytes from the matrix spike does not fall within specifted control limits due to matrix <br /> Interference,the LCS recovery Is to be used to validate•the batch. <br /> r <br /> ger '*MS.Matrix Spike,MSDa NIS Duplicate,RPD-Relative%Difference 9812431 GET <4> <br />