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Seglxafa 689 Ch"a"aka oft" Redvrood Oty,CA �. � (4115) 1641im FAX(413) 864.9233 <br /> 4D 404 N.Wirt lane Walnut Creek,CA 94598 (510) 981.9600 FAX(310)988.9673 <br /> Analytical 819 Striker Avenue,Sulte 8 Sacramento,CA 95834 (9 16) 921.9600 FAX(916)921.0100 <br /> A ,��y , .a•+ .$''f+'.'.r':)'f.%fflJlWr' •}' fi': �' 4'N�fi]hW+N/Ii•:� ✓F vWXfrYRIti�':4 M.\1\ *n'::\11`:':�fFYlF?tit <br /> e�rAt6g19S InC. lterlt�r0 eCt , T05C0- <br /> 3164 Gold Camp Dr., Suite 240 Matrix: Soil <br /> Rancho Cordova, CA 95670 <br /> Attention: Greg Gurss QC Sample Group 7050335-0336 r::....r Reported: May 21, 1997:. <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Ethyl- <br /> Benzene Toluene Benzene x lenes Diesel <br /> Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 DHS LLIFT <br /> Analyst: C.Lee 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 7.5 mg/kg <br /> LCS Batch#: LCS051597 LCS051597 LCS051597 LCS051597 LCS051997 <br /> Date Prepared: 05/15/97 05/15/97 05/15/97 05/15/97 05/19/97 <br /> Date Analyzed: . 05/15/97 05/15/97 05/15/97 05/15/97 05/19/97 <br /> Instrument E.D.#: GCHP-2 GCHP-2 GCHP-2 GCHP-2 GCHP-3B <br /> LCS % <br /> Recovery: 101 102 101 97 96 <br /> Control Limits: 70-130 70-130 70-130 70-130 60-140 <br /> .... ......... <br /> �._ <br /> MS/MSD <br /> Batch #: 7050336 7050336 7050336 7050336 7050336 <br /> Date Prepared: 05/15/97 05/15/97 05/15/97 05/15/97 05/19/97 <br /> Date Analyzed: 05/15/97 05/15/97 05/15/97 05/15/97 05/19/97 <br /> Instrument I.D.#: GCHP-2 GCHP-2 GCHP-2 GCHP-2 GCHP-38 <br /> Matrix Spike <br /> % Recovery: 100 101 100 100 101 <br /> Matrix Spike <br /> Duplicate <br /> Recovery: 100 100 101 97 103 <br /> Relative % <br /> Difference: 0.0 1.0 1.0 3.0 2.0 <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 /> M � v preparation and analytical methods employed for the samples. The LCS%recovery data is used for <br /> s. validation of sample batch results. Due to matrix effects,the OC limits for MS/MSD's are advisory only <br /> Edana M. Fruciano and are not used to accept or reject batch results. <br /> Project Manager/Sacramento Laboratory <br /> 7050335.GSI <14> <br />