Laserfiche WebLink
r <br /> �80 Chesapeake Drive Redwood City, 63 (650)3649500 FAX(650)364-9233 <br /> Sequoia 404 N.Wiget Lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Ana�ytieal 1455 McDowell Blvd.North,Ste.D Petaluma,CA 94954 (707)792 1865 FAX(707)792-0342 <br /> 1551 Industrial Road San Carlos,CA 94070-41 1 I (650)232-9600 FAX(650)232-9612 <br /> :.,-.�::.::.,..2/:..:o:;};.,;}:??.}:}}}:•:.::::::::. :..,.:::::._:::,.-.,:..�..:... ........ - � <br /> :1=MCbN /Pinnacle Client Pro ect ICS: ARCO 2'186 Stockton CA <br /> !0939 Cambridge Rd,, Ste, 220 Matrix: Soil <br /> Cameron Park, CA 95682 <br /> Attention Mark Capps QC Sample Group S906330 Reported: Jun 23, 19991' <br /> QUALITY CONTROL DATA REPORT <br /> Ethyl- <br /> Benzene Toluene Benzene Xylenes <br /> Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Analyst: D.Newcomb D.Newcomb D. Newcomb D.Newcomb <br /> Concentration <br /> Spiked: 0.80 mg/kg 0.80 mg/kg 0.80 mg/kg 2.4 mg/kg <br /> LCS 13atch#: 4LCS062299 4LCS062299 4LCS062299 4LCS062299 <br /> Date Prepared: 06/22/99 06/22/99 06/22/99 06/22/99 <br /> Date Analyzed: 06/22/99 06/22/99 06/22/99 06/22/99 <br /> Instrument I.D.#: HP-4 HP-4 HP-4 HP-4 <br /> LCS % <br /> Recovery: 100 85 89 100 <br /> Control Limits: 50-150% 50-150% 50-150% 50-150% <br /> ......:.� ...:.� ..... :. .:.�.....:::.. <br /> ..::....... <br /> ..:...... ::.:.:::::::ri:.: <br /> .. ..:.:._:..::r::.i:.:2/:}:..'::-.. <br /> .......... ..:::... <br /> ,:. ...........':.�......:...::i.?.;..fit:: <br /> MSIMSD <br /> Batch #: 9061679 9061679 9061679 9061679 <br /> Date Prepared: 06/22/99 06/22/99 06/22199 06/22/99 <br /> Date Analyzed: 06122/99 06/22/99 06/22/99 06/22/99 <br /> Instrument I.D.#: HP-4 HP-4 HP-4 HP-4 <br /> Matrix Spike <br /> % Recovery: 104 88 90 100 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery: 103 88 93 104 <br /> Relative % <br /> Difference: 1.2 0.0 2.7 4.1 <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 QC limits for MS/MSD's are advisory only <br /> Ronald W. Sobel and are not used to accept or reject batch results. <br /> Project Manager/Sacramento Laboratory <br /> [�,�}Q S906330.PCP a4> ' <br />