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SEQUOIA ANALYTICAL " <br /> °819.8triker Avenue, Suite 8 •.Sacramento, CA 95834 <br /> Iwo <br /> " _(916Y921-9600 • FAX (916) k1_0100 <br /> �+ ,K,"Oc.: G'.'-,�:':'.�;"Vrti::C:i;;'.2",�'��.;r`,k:Rbw„'.'{',•'`': �;.:r;:,.:.,�y.>- :;.:`; .:i?+e-r y..g{.,;.r:->:::.sr - - - <br /> vSe6rihoa.h.:o{a:. <br /> RESrIA I - , o..v .-. .w...........,...h..,...n:. v:;Yr:": <br /> ncustries <br /> Jett Da •Area 2130'93.2;Stockton <br /> 3164 Gold CamWr:;Suite 200 --Matrbc: " Soil <br /> Rancho Cordova, CA. 95870 <br /> Att <br /> erttion: =Jay'Johnsorl . OC Sample Group: 31:10351 X54 - - - <br /> Reported: Nov 1.9, 1993 <br /> . QUAUTY CONTROL DATA <br /> ANALYTE Benzene . Toluene- Ethyl: xylenes <br /> Benzene <br /> -:Method:" EPA 8020. =EPA SM. ._ EPA 8o2o - 'EPA 8024 . <br /> ! - -Analyst: C.Chapman C.Chapman C:.Chkprrian C.Chapman <br /> MS/MSD <br /> Batch#: 3110375A-0 ..3110375A-D3:110375A-D --3114375A=D <br /> Date Prepared: 11/17/.93 11/17/93 11/1:7193 11/17/93 <br /> Date Anal - 11 17 93 .111/17/93.: 1.1 - <br /> � -- - ��� � 1 _ _ /1 T/93 11/17/93 <br /> Instrument I.D.#:-. HP-1 HP=1'--- HP-1 HP-1 <br /> Conc.-Spiked: "0.20-mg/kg- .0.20 mg/kg, 0.20 mg/kg- 0.60 mg/kg <br /> Matrix Spike <br /> i °,b_Recovery: 140 _ 95 .. 95 90 <br /> Matrix Spike - <br /> Duplicate <br /> Recovery: 95 95 95. 90 <br /> Relative% <br /> Differj.hce: 5.1 0.0' 0.0 0.0 . <br /> Iv. _ <br /> MX <br /> LCS Batch#: <br /> Date Prepared: <br /> -Date Analyzed: _ <br /> Instrument I.D:#: <br /> -LCS % <br /> E Recovery: <br /> %Rec5very _ <br /> control.Limits: 80-120 - 80-120 . 80-120 80-120 <br /> Please Note- _ <br /> The LCS is_a_control sample of known,interferent tree matrix that ii:anafyzed.using the Sam' reagents, <br /> SEQUOIA 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 anai"cal.procedure. If <br /> the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix- <br /> �� in4efference,the LCS iecove 'is to be used to vaiidate the batch. <br /> Undo C.�Schneider <br /> -:_Project Manager 3110351.AES c2> <br />