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Sequoia 0680 Cheuvcakc Drive Redwood City,CA 940630415) 364.9600 FAX(415) 364-9133 <br /> 404 N.Wiget Ianc Walnut Creek,CA 94598 (510) 988-9600 FAX(510)988.9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 911.9600 FAX(916)911-0100 <br /> Kleinfelder Client Project ID: 20-3978-01.W35 /Spreckels <br /> 2825 East Myrtle SL Matrix: Soil/Water <br /> Stockton, CA 95205 <br /> Attention: Tony Martin QC Sample Group 7090549-0559 Reported: Sep 18, 1997:::: <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE 1,4-Diohloro- N-Nitroso-Di- 1,2,4-Trichloro- 4-Chloro-3- <br /> Phenol 2-Chlorophenol benzene N-propylannine benzene Methylphenyi <br /> Method: EPA 8270 EPA 8270 EPA 8270 EPA 8270 EPA 8270 EPA 8270 <br /> Analyst: B.Pitamah B.Pitamah B.Pitamah B.Pitamah B.Pitamah B.Pitamah <br /> Concentration <br /> Spiked: 3,300 Ng/kg 3,300Ng/kg 3,300Ng/kg 3,300Yg/kg 3,300Ng/kg 3,300 Ng/kg <br /> LCS Batch#: LCS091297 LCS091297 LGS091297 LCS091297 LCS091297 LCS091297 <br /> Date Prepared: 09/12/97 09/12/97 09/12/97 09/12/97 09/12/97 09/12/97 <br /> Date Analyzed: 09/13/97 09/13/97 09/13/97 09/13/97 09/13/97 09/13/97 <br /> Instrument I.D.#: F4 F4 F4 F4 F4 F4 <br /> LCS % <br /> Recovery: 59 60 53 62 57 52 <br /> Control Limits: 26-90 25-102 28-104p41-126 38-107 26-103 <br /> 3° ,,. M. <br /> '.L'..'�U.r.L"�aa� <br /> u <br /> . ...ro '« <br /> MS/MSD <br /> Batch#: 9709537-04 9709537-04 9709537-04 9709537-04 9709537-04 9709537-04 <br /> Date Prepared: 09/12/97 09/12/97 09/12/97 09/12/97 09/12/97 09/12/97 <br /> Date Analyzed: 09/13/97 09/13/97 09/13/97 09/13/97 09/13/97 09/13/97 <br /> Instrument I.D.#: F4 F4 F4 F4 F4 F4 <br /> Matrix Spike <br /> %Recovery: 62 63 56 65 59 58 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery: 64 65 57 66 62 57 <br /> Relative% <br /> Difference: 1.9 2.4 1.1 2.3 4.5 3.2 <br /> Please Note: <br /> /!SEQUIA ANALYTICAL The LCS is a control sample of known,interferent free matrix that is analyzed using the same reagents, <br /> ypreparation and analytical methods employed for the samples. The LCS%recovery data is used for <br /> 1� L4" / validation of sample batch results. Due to matrix eNects,the QC limits for MS/MSD's are advisory only <br /> LGand are not used to acce t or re'ect batch results. <br /> Schne derManager/Sacramento Laboratory Page 1 of 2 <br /> 7090550.KLF <18> <br /> 1991 <br />