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1 <br /> SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive - Redwood City,CA 94063 <br /> U W (415) 364-9600 FAX (415) 364-9233 <br /> ;.w,1r"M ,x 1•^ .r>.Y..�. ;#'"� `�"' ,.,,ry roa..rvx•.,,�,"^r9`.r�wc ^�^. 'e'�a ve:-ve,' rx •oonw Mr^ r.". <br /> 4.4Y:,r,..r,..^„S.ic/n„i�.S.�slcastnxL:��' <br /> IRESNA Client Project ID OW01fi9 01, BJJ Tracy z <br /> 0710 Main Street Matrix, Liquid <br /> 'Escalon, CA 95320 <br /> ,Attention Lots Frantz CC Sarnple Group 4A34301-2 Reported- Jan 24. 1994 <br /> r;acv�;}v-.,..1.i�.n.yyj„ , •�roa»r v'.F.z�`.�� �u•�s��'•.n rs.xM.^'�nnr'rar.,,•rw,�as "`�au yS;""",r�..b,;t�'�`:ax �` '"r�S.w'°°"xy+vr.r»c�xra8r'"¢`""`,. ax. <br />' QUALITY CONTROL DATA REPORT <br />' ANALYTE Benzene Toluene Ethyl Xylenes Diesel <br /> Benzene <br /> Method: EPA 8020 EPA 8020 EPA 8020 EPA 8= EPA 6015 <br /> Analyst: M Hipp M Kipp M Hipp M Nipp D Tran <br /> MS/MSD <br /> Batch##: 4A38709 4A3a709 4A38709 4A38709 4A34201 <br /> Date Prepared: - <br /> 1/12/94 <br /> Date Analyzed: 1/14/94 1/14/94 1/14/94 1/14/94 1/13/94 <br />' Instrument I.D.#: GCHP-3 GCHP-3 GCHP-3 GCHP4 GCHP-5 <br /> Conc. Spiked: 10#g/L 10 fig/L 10pg/L 30yg/L 6Wpg/L <br /> Matrix Spike <br /> % Recovery: 100 100 100 100 47 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery: 100 100 99 100 46 <br /> Relative% <br />' Difference: 0.0 00 10 00 2.2 <br /> `„n,h'��.{.cc coaa�J�'�le: `er w` r'4�tt,L r `�� s<, 4 r6i.� � w'��4`' 'a4 4<a '„a ♦, a s n% <br /> LCS Batch#: - - OLK011294 <br />' Date Prepared: - - 1/ 2/84 <br /> Date Analyzed: 1/13/94 <br /> Instrument l.D.#: - - - - GCHP-5 <br /> LCS % <br /> Recovery: - - - - 114 <br />' % Recovery <br /> Control Limits: 71-133 72-128 72-130 71-120 213-122 <br /> Please(dote. <br /> The LCS:s a control sample of known,interferent free matrix that is analysed using the same reagents, <br /> EQUOIA ANALYTICAL preparation,and anaiyboal 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 procedure b <br /> the recovery of analytes from the matrix spike does not fail within specified control limits due to matrix <br /> iriterferenc:e,the LCS recovery is to be used to validate the batch <br /> Vickie Tag <br />' Project Manager 4A34301.WAT .43> <br />