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Sequoia U680 Chesapeake Drive Redwood City CA 9406Q(415) 364-96M 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 /> ----------- -X X <br /> P nellPro .....ft�.......... <br /> Upgradient a6nf Projecf(O'. <br /> 1017 26th St. <br /> Matrix: Soil <br /> Sacramento, CA 95816 <br /> X. <br /> Attention: Vic Cherven QC Sample Group: 6060583, 85, 87 Reported: Jul 10, 1996].':.r <br /> .................................. <br /> ............... .. ------------- <br /> ------------- <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE <br /> Heptachlor Aldrin Dieldrin <br /> Method: EPA 8080 EPA 8080 EPA 8080 <br /> Analyst: - - - <br /> Concentration <br /> Spiked: 3.3,ug/kg 3.3ug/kg 13,ug/kg <br /> LCS Batch#: LCS061896 LCS061896 LCS061896 <br /> Date Prepared: 06/18/96 06/18/96 06/18/96 <br /> Date Analyzed: 07/05/96 07/05/96 07/05/96 <br /> Instrument I.D.#: GCHP-10 GCHP-10 GCHP-10 <br /> LCS % <br /> Recovery. 48 80 53 <br /> Control Limits: 40-140 40-140 40-140 <br /> -'X-'- <br /> ......... .. <br /> .......... <br /> MS/MSD <br /> A <br /> Batch#* 9606949-05 9606949-05 9666949-05 <br /> Date Prepared: 06/18/96 06/18/96 06/18/96 <br /> Date Analyzed: 07/05/96 07/05/96 07/05/96 <br /> Instrument I.D.#: GCHP-10 GCHP-10 GCHP-10 <br /> Matrix Spike <br /> % Recovery: 78 48 75 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery: 54 36 68 <br /> Relative% <br /> Difference: 36 29 26 <br /> Please Note: <br /> The LCS is a control sample of known,interferent free matrix that is analyzed using the same reagents, <br /> SEQUOIA ANALYTICAL preparation and analytical methods employed for the samples. The LCS%recovery data is used for <br /> validation of sample batch re I iults. Due to matrix effects,the OC limits for MS/MSD's are advisory only <br /> and are not used to accept or reject batch results. <br /> Margie Wamba UcL it <br /> Project Manager/Sacramento Laboratory <br /> 6060583.UPS <4> <br />