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j SEQUOIA ANALYTICAL
<br /> 819 Striker Avenue, Suite 8 • Sacramento, CA 95834
<br /> (916) 921-9600 FAX (916) 921-0100
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<br /> �belia'EnvironmentalVConsultants Client prniecf lb #40-91-732 05, Ruiz Grocery M
<br /> X3330 Data Drive, Suite 100 Matrix Water
<br /> 'Rancho Cordova, CA 95670
<br /> ;Attention Jim Brownell OC Sample Goup 3040205-06 Reported Apr 16, 1993 k
<br /> QUALITY CONTROL DATA REPORT
<br /> ANALYTE Ethyl-
<br /> Benzene Toluene Benzene Xylenes
<br /> Method: EPA 602 EPA 602 EPA 602 EPA 602
<br /> Analyst: Chiaravallott Chiaravalloti Chiaravailoti Chiaravalloti
<br /> Concentration
<br /> Spiked: 10 10 10 30
<br /> LCS Batch#: LCSO40893 LCSO40893 LCSO40893 LCSO40893
<br /> Date Prepared- 4/8/93 4/8/93 4/8/93 4/8/93
<br /> Date Analyzed: 4/8/93 4/8/93 4/8/93 4/8/93
<br /> Instrument I.D #- HP-2 HP-2 HP-2 HP-2
<br /> LCS %
<br /> Recovery: 100 102 101 101
<br /> Control Unnits: 80-120 80-120 80-120 80-120
<br /> aiew`;'oo;.,w.�eaCeYa�`...w.+`x:_.::-._.-:.-:::.-:.:o,w«nei.a+.�J.a:R:.a.•v,.ax......,,.,.n,.a,.,,a,..,,.,,r vovx.can,a,•on,.x.-e n nc�tr`.0-.r<ek,.sa:,�.s,,,,,,,,,,,,,,,,�..,.wik..warlv:.�,.s,..,.+,ie.r,.,.;+.::+n.� ..---- a�Na^,.k`'atw.`�xo.t�.,�w,�...�..
<br /> MS/MSD
<br /> Batch#: 3040193 3040193 3040193 3040193
<br /> Date Prepared: 4/8/93 4/8/93 4/8/93 4/8/93
<br /> Date Analyzed: 4/8/93 4/8/93 4/8/93 4/8/93
<br /> Instrument I.D.#: HP-2 HP-2 HP-2 HP-2
<br /> Matrix Spike
<br /> % Recovery: 89 95 97 95
<br /> Matrix Spike
<br /> Duplicate%
<br /> Recovery: 91 96 97 100
<br /> Relative%
<br /> Difference- 22 00 00 51
<br /> 10 i
<br /> I
<br /> SEQUOIA ANALYTICAL Please Note
<br /> The LCS is a control sample of[mown,interferent free matnx that is analyzed using the same reagents,
<br /> U&U&ZIP preparatton and analytical methods employed for the samples The LCS%recovery data is used for
<br /> validatton of sample batch results Due to matnx effects,the CC limits for MS/MSD's are advisory only
<br /> Michael R Giles and are not used to accept or reject batch results
<br /> Laboratory Director 3040205 DLT <2>
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