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IJ Sequoia 680 Chesapeake privc Redwood City.CA 94063 (415) 364-9600 FAX(415) 364.9233 <br /> ��:r••� 404 N.Wiget Lane Walnut Creek.CA 94598 (510) 988-9600 FAX(510)988-9673 <br /> Analytical a19 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921-0100 <br /> I <br /> Terra pacific Gr'oui"dwater Client Project ID: lJnacaf <br /> 4911 Windplay Dr., #4 Matrix: Water <br /> EI Dorado Hills, CA 95762 <br /> Attention: John Rapp OC Sample Group: 509-0782 Reported: Oct 11 <br /> :: .....-.:-:::.:v.w.. .vnv-•:;':'+:::._::-rn.::+:;••--vs.._r-......:r: x:.h.A:sv:rx�. <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE 1,1-Dichlaro- Trichloro- Chloro- <br /> ethane ethane benzene <br /> Method: EPA 601 EPA 601 EPA 601 <br /> Analyst: K.Pocan K Pocan K Pocan <br /> Concentration <br /> Spiked: 10 ug/L 10 ug/L 10 ug/L <br /> LCS Batch#: LCS092795 LCS092795 1-CS092795 <br /> Date Prepared: 9/27/95 9/27/95 9/27/95 <br /> Date Analyzed: 9/27/95 9/27/95 9/27/95 <br /> Instrument I.D.#: GCHP-5 GCHP-5 GCHP <br /> LCS % <br /> . Recovery: as 98 102 <br /> Control Limits: 70-130 70-130 70-130 <br /> MS/MSD <br /> Batch #: 5090932 5090932 5090932 <br /> Date Prepared: 9/27/95 9/27/95 9/27/95 <br /> Date Analyzed: 9/27/95 9/27/95 9/27/95 <br /> Instrument I.D.#: GCHP-5 GCHP-5 GCHP-5 <br /> Matrix Spike <br />' % Recovery: 93 110 112 <br /> Matrix Spike <br /> Duplicate % <br /> Recovery: 94 130 109 <br /> Relative % <br /> Difference: 1.1 17 2.7 <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 faith@ samples. The LCS%recovery data is used for <br /> validation of sample batch results. Due to matrix effects,the GG limits for MS/MSD's are advisory only <br /> and are not used to accept or reject batch results. <br /> Janet Han <br /> Project Manager 509078ZSSS <7'> <br />