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t <br /> Se uoiaa fxake Drive Red,wrood Gtr,CA 94063 364-9600 FAX(415)964-9233 <br /> 1900 Bata Avenue.Suite L Concord.CA 94520 (510) 686-960o FAX Wo)baa-96a9 <br /> Analyfical 819 Striker Avaxu,Suite 8 Sacramento.,CA 95934 (916) 921-9x=00 FAX(916)921-0100 <br /> -" . .. .:.:::::::::::. ::::.. Y: <br /> k -:.:•:::x:r.:......0. ::.—- - '::r: i::$Yii .::.144..4"'-''"` ...:...x..v.. YJbWrvi �� <br /> v::.�.:- '"ms=s• - <br /> :...-... ....::.. .sex......- :i.\...:.{ ice. +Y.i::'fir .e:n�...: '- � ---. ...... .- �u <br /> Geraghty& Miller .Client Project ID: RCO291.001,514 Kettlenlan Ln. <br /> '�'1050 Marina Way,South Matrbc: Solid <br /> Richmond, CA 94804 <br /> :Attention: C. Sean SIsch Work Order : 9410E33-01 R ed: Nov .2 1994. <br /> ],K.;•r :::{.{.4Y:4 ti{ tx{{•iyy 3.Ci.+x{kr'= :.ss•.,.-}': - xvvv6:'slft:ij` M: - <br /> .:��• .:tui?:�•''':Sam.:.i§M?`.'• ,:;i;:y. ry.4i v�r.'i:��::v •:> <br /> t.:-:vi.,...,.._a, <br /> .n„c>::::::r:.,v:.a:,.x::;s:r.::mac;:axe'� �£c�:=>:aoA's`?cY�wFb«-�-4.x+'"Y3.u�::aakv�w'�`z Y..Y.,•...:�i.'b...m...r.....,�:,«:!Cc�>�a+wam ., <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Benzene Toluene Ethyl xylenes <br /> Benzene <br /> OC Batch#: GC1o2794STEXUA GCt02794BTEXEXA GC102794BTEXE1U GC102794BTEXEXA <br /> Anally. Method: EPA s= EPA 8020 EPA 9020 EPA 9020 <br /> Prep. Method: 6090 50:10 sotto <br /> Analyst: K Geckler R Geckler R Geckler R Geckler . <br /> MS/MSD#: 9410GO205 941060205 9410GO205 941oG0205 <br /> Sample Conc.: N.D. N.D. N.D. N.D. <br /> Prepared Date: 10/27/94 10/27/94 t0/z7/94 10/27/94 <br /> Analyzed Date: 10/27/94 10/27/94 10/27/94 10/27/94 <br /> Instrument I.D.#: GCHP18 GCHP18 6CHP18 GCHP18 <br /> Conc. Spiked: 0.20 mg/Kg 0.20 mg/Kg 0.26 ring/Kg 0.60 mg/K9 <br /> Result: 0.18 0.19 0.18 0.55 <br /> MS % Recovery: 90 95 90 92 <br /> Dup. Result: 0.18 0.19 0.18 0.54' <br /> MSD % Recov.: 90 955 90 90 <br /> RPD: 0.0 0.0 0.0 1.8 <br /> RPD Limit: 0-50 0750 0.50 0.50 <br /> t <br /> LCS #: <br /> Prepared Date: <br /> Analyzed Date: <br /> Instrument I.D.#: " <br /> Conc. Spiked: <br /> LCS Result: <br /> LCS % Recov.• <br /> LCS 55-145 47-149 47-155 5Cr140 <br /> Control Limits <br /> Please Note. <br /> The LCS is a control sample of known.interferent-free matrix that is analyzed using the same reagsM. <br /> SEQUOIA ANALYTICAL preparation,and analytical methods employed for the samples. The matrix spike is an afrquot of sample <br /> fonAW with known quantities of specific compounds and subjected to the entire analytical procedure, a <br /> recovery of analytes from the matrix spike does not fait within specified control limits due to matrix <br /> interference,the LCS recovery is to be used to validate the batch. <br /> $Plect <br /> Olive <br /> Manager "MS=Matrix Spike.MS0=MS Duplicate,RPD-Relative%Difference 9410EM.GER <2>' <br />