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Sequoia 660 Chesa Y 94063 eake Drive Redwood Cit CA <br /> y P (415) 364 9600 FAX(415)364-9233 <br /> 1900 Bates Avenue,Suite L Concord CA 94520 (510) 686 9600 FAX(510)686 9689 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> RESNA , fi •' � � maw t .�� �,. <br /> < Client Prosect ID n nm712U 94,bulk Stop 120 <br /> `<42501 Albrae Street Matrix Liquid <br /> Fremont, CA 94538 { <br /> I<Attentlon Rich Garlow QC Sample Group 4FD8202-4 R�e^�portedt� Jul{{1, 1994 <br /> QUALITY CONTROL DATA REPORT <br />' ANALYTE Benzene Toluene Ethyl Xylenes <br /> Benzene <br />' Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Analyst: J Minkel J Minkel J Minkel J Minkel <br /> MS/MSD <br />' Batch#: 4FD7302 4FD7302 4FD7302 4FD7302 <br /> Date Prepared: N A. NX N A. N A. <br /> Date Analyzed: 6/27/94 6/27/94 6/27/94 6/27/94 <br />' Instrument I D.#: GCHP-2 GCHP-2 GCHP-2 GCHP-2 <br /> Conc Spiked. 10ug/L 10ug/L 10pg/L 301ig/L <br /> Matrix Spike <br /> % Recovery 96 96 97 97 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery* 100 100 100 100 <br /> Relative% <br /> Difference- 41 41 30 30 <br /> 4+ w n4 vrrwti iL fivt�+ wry�r � { vi rYilvr i}irMxti?�r.+hH�w+w�-0�ti�v.vv yti;tiv vtii- r..�! r...r r.n rUw]r ti nC S,]n. ti�Y*{.y r` �v^rrT�riY pvi•yr <br /> n}}�� +r4�r7v r4i�irt ht k}j i< h .7t <br /> 1}r r } r ♦ r'�i}r r r rr , v r ,t 3 }+� , ..... v S 4 r r r F],Cnivt�,<n++v n.,,,{K�.}`n( �y„(•,y�J{,�. <br /> - - <br /> LCS Batch# - <br /> Date Prepared _ _ = <br /> Date Analyzed <br /> Instrument I.D.#. - - - - <br /> LCS % <br /> Recovery - - - - <br /> Recovery <br /> Control Limits- 71-133 72-128 72-130 71-120 <br /> Please Note <br /> The LCS is a control sample of known,Interferent free matrix that is analyzed using the same reagents, <br /> EQUOIA ANALYTICAL preparation,and analytical methods employed for the samples The matrix spike is an aliquot of sample <br /> fortified with known quantities of specific compounds and subjected to the entire analytical proceaure If <br /> WITdWIL <br /> the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> Interference,the LCS recovery is to be used to validate the batch <br /> Vickie Tague Clark <br /> Project Manager 4FD8201 RES <3>, <br /> z� <br />