Laserfiche WebLink
Sequoia •Chesapeake Drive Redwood City,CA 94063 �5) 364-9600 FAX(415) 364-9233 <br /> 4 N.Wiget Lane Walnut Creek,CA 94598 0) 988-9600 FAX(510)988-9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,C4 95834 (916) 921-9600 FAX(916)921-0100 <br /> TAWCMCON Associates Client Project ID: Arco 2168, Stockton <br /> 1433 N. Market Blvd. Matrix: Soil <br /> Sacramento, CA 95834 <br /> Attention: Matt Turner OC Sample Group 6050465-70 Reported: May 7, 1996 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Ethyl- <br /> Benzene Toluene Benzene Xylenes <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#: LCS050696 LCS050696 LCS050696 LCS050696 <br /> Date Prepared: 05/06/96 05/06/96 05/06/96 05/06/96 <br /> Date Analyzed: 05/06/96 05/06/96 05/06/96 05/06/96 <br /> Instrument I.D.#: GCHP-1 GCHP-1 GCHP-1 GCHP-1 <br /> LCS % <br /> Recovery: 95 97 100 98 <br /> Control Limits: 75-125 75.125 75-125 75125 <br /> MS/MSD <br /> Batch #: 6050457 6050457 6050457 6050457 <br /> Date Prepared: 05/06/96 05/06/96 05/06/96 05/06/96 <br /> Date Analyzed: 05/06/96 05/06/96 05/06/96 05/06/96 <br /> Instrument I.D.#: GCHP-1 GCHP-1 GCHP-1 GCHP-1 <br /> Matrix Spike <br /> %Recovery: 82 86 89 90 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery: 84 91 90 93 <br /> Relative% <br /> Difference: 2.4 5.6 1.1 3.3 <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 tar <br /> //1�1 validation of sample batch results. Due to matrix effects,the OC limits for MS/MSD's are advisory only <br /> 1L L <br /> L nda C. $Chneider and are not used to accept or reject batch results. <br /> Project Manager/Sacramento Labora Fry <br /> 6050465.EMC <2> <br />