Laserfiche WebLink
4 Sequoia 680 Chesapeake Dnve Redwood City C? 94063 (315) 364 9600 FAX(413) 364 9233 <br /> 404 iZi Wiget Lane Walnut Cmck CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Sinker Avenue Suate 8 Sacramento CA 95834 (916) 921 9600 FAX(9161 921 0100 <br /> Brown &Caldwell Client Project ID Arco 5450, Stockton, CA <br /> 9616 Micron Ave , Suite 600 Matrix Soil <br /> Sacramento, CA 95827 <br /> Attention Steve Misner OC Sample Group 6071366-68, 70 Reported Aug 12, 1996 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Ethyl- <br /> Benzene Toluene Benzene X lanes <br /> Method EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Analyst C Lee C Lee C Lee C Lee <br /> Concentration <br /> Spiked 0 20 mg/kg 0 20 mg/kg 0 20 mg/kg 0 60 mg/kg <br /> LCS Batch# LC8073196 LCS073196 LCS073196 LCS073196 <br /> Date Prepared 07/31/96 07/31/96 07/31/96 07/31/96 <br /> Date Analyzed 07/31/96 07/31/96 07/31/96 07/31/96 <br /> Instrument I D # GCHP-1 GCHP-1 GCHP-1 GCHP-1 <br /> LCS <br /> Recovery, 101 104 los 105 <br /> Control Limits 70.130 70-130 70.130 70.130 <br /> MS/MSD <br /> Batch#. 6071250 6071250 6071250 6071250 <br /> Date Prepared 07/31/96 07/31/96 07/31/96 07/31/96 <br /> Date Analyzed. 07/31/96 07/31/96 07/31/96 07/31/96 <br /> Instrument I D # GCHP-1 GCHP 1 GCHP 1 GCHP 1 <br /> Matrix Spike <br /> % Recovery: 86 88 89 86 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery 77 78 81 75 <br /> Relative% <br /> Difference. 11 12 94 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 /> '47 ��Wl preparation and analytical methods employed for the samples The LCS%recovery data is used for <br /> C validation of sample batch results Due to matrix effects,the OC limits for MS/MSD s are advisory only <br /> nda C Schneider and are not used to accept or reject batch results <br /> Project Manager/Sacramento Labors-o-Ty <br /> 6071388 BRS <5> <br /> I .4�k <br />