Laserfiche WebLink
3 Sequoia 680 Chesapeake Dnve Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9333 <br /> Analytical 404 N Wiget Lane Walnut Cretk CA 94598 (510) 488 9600 FAX (510)988 9673 <br /> 8195cnke,Avenue Suite 8 Sacramento CA 95834 (9 16) 92t 9600 FAX (916)92t 0100 <br /> *Brown & Caldwell Client Project ID Arco 2133-95-5, Stockton <br /> 9616 Micron Ave , Suite 600 Matrix Air/Water <br /> Sacramento, CA 95827 <br /> Attention Mindy Patterson QC Sample Group 5081046-1048 Reported Sep 6, 1995 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Ethyl- <br /> Benzene Toluene Benzene Xylenes Lead TRPH <br /> Method EPA 8020 EPA 8020 EPA 8020 EPA 8020 EPA 200 7 EPA 418 1 <br /> Analyst C Chapman C Chapman C Chapman C Chapman K Barta S Phillips <br /> Concentration <br /> Spiked 2 0 mg/kg 2 0 mg/kg 2 0 mg/kg fi 0 mg/kg 0 50 mg/L 4 0 mg/L <br /> ...CS Satchv, !CSC,32-.95 LC53&24y5 _CS082495 -:,S082495 LCS082495 LCS083095 <br /> Date Prepared 8/24/95 8/24/95 8/24/95 8/24/95 8/24/95 8/30/95 <br /> Date Analyzed 8/24/95 8/24/95 8/24/95 8/24/95 8/30/95 8/31/95 <br /> Instrument I D # GCHP-2 GCHP 2 GCHP 2 GCHP-2 P 40 IR-1 <br /> . LCS % <br /> Recovery 89 90 90 90 94 88 <br /> Control Limrts 75-125 75-125 75-125 75-125 80-120 80-120 <br /> MS/MSD <br /> Batch# BS082495 BS082495 BS082495 BS082495 5081050 BS083095 <br /> Date Prepared 8/24/95 8/24/95 8/24/95 8/24/95 8/24/95 8/30/95 <br /> Date Analyzed 8/24/95 8/24/95 8/24/95 8/24/95 8/30/95 8/31/95 <br /> Instrument I D # GCHP-2 GCHP-2 GCHP-2 GCHP-2 P-40 IR-1 <br /> Matrix Spike <br /> % Recovery' 88 88 88 90 62 88 <br /> Matrix Spike <br /> Duplicate % <br /> Recovery 91 92 92 91 96 86 <br /> Relative % <br /> Difference 34 44 44 11 43 23 <br /> SEQUOIA ANALYTICAL <br /> Please Note <br /> The LCS is a control sample of known,interferent free matrix that Is analyzed using the same reagents, <br /> a' preparation and analytical methods employed for the samples The LCS%recovery data is used for <br /> JanetManager <br /> validation of sample batch results Due to matrix effects,the QC limits for MS/MSO s are advisory only <br /> Proland are not used to accept or reject batch results <br /> 5081046 BPS 4 5> <br />