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'StVo i a QChe5apeake Drive' Redwood City,CA 94063 Q5) 364-96�00 FAX(415) 364-9233 <br /> 404 N. Wiget Lane Walnut Creek,CA 94598 (510) 988-9600 FAX(510)988-9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX (916) 921-0100 <br /> ............... <br /> ...........6infel er <br /> Client.P..r..ojec.. <br /> t ................. <br /> I 20-1176-6�/150­1..... <br /> 2825 East Myrtle St. Matrix": Water <br /> Stockton, CA 95205 <br /> Attention. Roman Rocca QC Sample Group 5090006-9 Reported: Sep 12, 1995 <br /> K <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Ethyl- <br /> Benzene Toluene Benzene Xylenes Diesel <br /> Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 EPA 8015M <br /> Analyst: C.Lee C.Lee C.Las C.Lee C.Lee <br /> Concentration <br /> Spiked: 10jug/L 10 ug/L 10pg/L 30 gg/L 300 jig/l_ <br /> LLCS Batch#: LCS091195 LCS091195 LCS091195 LCS091195 LCS090595 <br /> Date Prepared: 9/11/95 9/11/95 9/11/95 9/11/95 9/5/95 <br /> Date Analyzed: 9/11/95 9/11/95 9/11/95 9/11/95 9/8/95 <br /> Instrument I.D.#: GCHP-2 GGHP-2 GCHP-2 GCHP-2 GCHP-3B <br /> LCS % <br /> L-11 Recovery: 101 <br /> .100 100 100 90 <br /> Control Limits: 75-125 75-125 75-125 75-125 60-130 <br /> ............... <br /> ..... ................... <br /> ..............-:-::......... <br /> X <br /> ..... . .....X <br /> ............. <br /> xx <br /> x. <br /> ............. <br /> ... ......... <br /> ..................................... <br /> MS/MSD <br /> Batch#: 5090090 5090090 5090090 5090090 BLK090595 <br /> Date Prepared: 9/11/95 1/11/95 9/11/95 9/11/95 9/5/95 <br /> L Date Analyzed: 9/11/95 9/11/95 9/11/95 9/11/95 9/8/95 <br /> Instrument I.D.*, GCHP-2 GCHP-2 , GCHP-2 GCHP-2 GCHP-3B <br /> Matrix Spike <br /> % Recovery: 88 88 90 88 90 <br /> Matrix Spike <br /> Duplicate% r A <br /> Recovery- 101 96 99 99 93 <br /> Relative% <br /> Difference: 14 8.7 9.5 9.6 3.3 <br /> SE 011A 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 for <br /> validation of sample batch results. Due to matrix effects,the QC limits for MS/MSD's are advisory only <br /> Linda C. Schneider and are not used to accept or reject batch results. <br /> L <br /> Project Manager <br /> 5090005,KLF <3> <br />