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i • <br /> •0 Chesapeake Drive Redwood City,CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> Sequoia 404 N.Wiget Lane Walnut Creek,CA 94598 (510) 988-9600 FAX(510)988-9673 <br /> ' fuller Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921.9600 FAX(916)921-0100 <br /> Kleinfelder Client Project ID 20-4054-01.E01 <br /> 2825 East Myrtle St. Matrix: Soil/Water <br /> Stockton, CA 95205 <br /> , ..Attention: Tony Martin QC Sample Group 8030426-0428, 0430 Reported: Mar 26, 1998::::: <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE 1,4-Dichloro- N-Nitroso-Di- 1,2,4-Trichloro- 4-Chloro-3- <br /> Phenol 2-Chlorophenol benzene N-propylamine benzene Meth I hen I <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: 200 Ng/L 200 Ng/L 200 ftg/L 200 Ng/L 200 Ng/L 200 Ng/L <br /> ' LCS Batch#: BLK031198 BLK031198 BLK031198 BLK031198 BLK031198 BLK031198 <br /> BS/BSD BS/BSD BS/BSD BS/BSD BS/BSD BS/BSD <br /> Date Prepared: 03/16/98 03/16/98 03/16/98 03/16/98 03/16/98 03/16/98 <br /> Date Analyzed: 03/17/98 03/17/98 03/17/98 03/17/98 03/17/98 03/17/98 <br /> Instrument I.D.#: H5 H5 H5 H5 H5 H5 <br /> LCS % <br /> Recovery: 28 55 52 65 61 63 <br /> Control Limits: 12-110% 27-123% 36-97% 41-116% 39-98% 23-97% <br /> _ .. <br /> MS/ <br /> MSD <br /> Batch#: WB03166S WB03166S WB03166S WB03166S W60316BS WB03166S <br /> Date Prepared: 03/11/98 03/11/98 03/11/98 03/11/98 03/11/98 03/11/98 <br /> Date Analyzed: 03/11/98 03/11/98 03/11/98 03/11/98 03/11/98 03/11/98 <br /> Instrument I.D.#: H5 H5 H5 H5 H5 H5 <br /> Matrix Spike <br /> % Recovery: 28 53 49 66 59 64 <br /> Matrix Spike <br /> I Duplicate% <br /> Recovery: 31 66 57 75 70 74 <br /> Relative% <br /> Difference: 8.5 23 15 13 16 15 <br /> Please Note: <br /> SEQU A ANALYTI AL 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 for <br /> validation of sample batch results. Due to matrix effects,the QC limits for MS/MSD's are advisory only <br /> ((( and are not used to accept or reject batch results. <br /> inda C. Sc neider <br /> Project Manager/Sacramento Laboratory Page 1 of 2 <br /> 8030426.KLF <27> <br />