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j SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive - Redwood City, CA 94063 <br /> 5 (415) 364-9600 FAX(415) 364-9233 <br /> .......... ?:i-0G:: .....'.. <br /> ................r.................... ::.v:.v:vv.vv.v.v:xv:xv:::::.v:.v:::.uv:..,.,..... •:.vr•.vu:: - <br /> ::::: <br /> ... .. .. .... .. .... _,-,. ..:_.:.._............................x..................................,.:.{,.......:,.:{.::::.J:..:.::.c:.y....-:.t..,...,. .....,. t,h:::.a-.r-:x✓•r ric�v?}r t-:wx::,•.:a. <br /> ....s..-.,.:..v:.v..-:x.J.::k�:::}::%.}.v::}::R-:.+..:n4�:h...nvrv..v..v:.vv:•.-...:.v::.-:...v::.vr.w:.-::.v::.u-...xs::rv':.:r::::.h.....x..:.............: .....n.........n....$..................... <br /> 'RESNA Client Project ID: W0195 00, Western Stone <br /> 1710 Main Street Matrix: Soil v <br /> AEscalon, CA 95320 }° <br /> i�Attention: Gre Stahl OC Sample Group: 3FD5801-06 Reported: Jul 12, 1993. <br /> ..riN•v.r.....: -. <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Ethyl- <br /> Benzene Toluene Benzene Xylenes Diesel <br /> Method: EPA 8020 EPA 8020 EPA 8020 EPA 6020 EPA 8015 <br /> Analyst: R.Geckler R.Geckler R.Geckler R.Geckler V.Nunzir <br /> Conc. Spiked: 0.20 0.20 0.20 0.60 15 <br /> Units: mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg <br /> LCS Batch#: BLK070793 BLK070793 BLK070793 BLK070793 BLK063093 <br /> Date Prepared: 7/7/93 7/7/93 7/7/93 7/7/93 6/30/93 <br /> Date Analyzed: 7/7/93 7/7/93 7/7/93 7/7/93 6/30/93 <br /> Instrument I.D.#: GCHP-18 GCHP-18 GCHP-18 GCHP-18 GCHP-5A <br /> :... LCS % <br /> Recovery: 105 105 110 108 73 <br /> Control Limits: 60-140 60-140 60-140 60-140 50-150 <br /> J:a.:< <br /> .};:{;:{.},:t:�:{{ n>:<{J:{fi::,,,.:N.4:{.v.,:huhu::us.4u:{:u.;::s:{.u:.u:.u::x.s.:::v.,.s.._s,.,_u:.;_�.::s.u.:4?.;:{.v.�:,:unxu..::..:s::u..;u.u.s:;::-:.:'<:.<;:..r::t;;.:�:;U;:{??fi;.:h:th:};:,:h:•x•:�M:n :?:�-?;..:s::.:.�_:,...w. ....,..:.�,,.A.:,. <br /> r.,......ter ..:J::{J..{.u:.J.J.:}.Jc.a.J..J <br /> .a....a.....,:.J..J..a.:::>xv::{.:J:«-:J:{.ra:.::{;.a}:."•.:{:.::u�:::c:{s;:;?:;a;;�:.^r;?:u.•.•v.:}.x}{ c,.,..:.,.;.,:.:... '-- <br /> rvJ:.J}}:..}:::.h.v.{J;-.J}:; <br /> .......{.......... .:r- :n u..-..:..:vr..y.{..O:r:Y'{:.:}:4�0.:4'}:{.:}:{}}}rii.:{i.::4:4_':.•:{:.{:�{:::ti .. r�::'{.':':r•:{.{::.O:.vt{.}v;:.O:.;....u.:..-}4'. 1. :4}G .J.0.x.v f..:..J.-} Y-O i�'}-;{_;p }a C...'3.-...:: Q.:�-:.{C.v:tea`::ff::..� <br /> -r.:�:rrv.naJ.v.JnJ..J}...OI.{v.`.l..h.}.x_:Cv.._x...L._.vJ.`..........$.i.........................x...h.x.�h%.OJA.a:}...'�..:}.x........ '•'+rri{.:Ci:":{:-: r <br /> MS/MSD <br /> Batch#: 3GO2902 3GO2902 3GO2902 3GO2902 3FE5712 <br /> Date Prepared: 7/7/93 7/7/93 7/7/93 7/7/93 6/30/93 <br /> Date Analyzed: 7/7/93 7/7/93 7/7/93 7/7/93 6/30/93 <br /> Instrument I.D.#: GCHP-18 GCHP-18 GCHP-18 GCHP-18 GCHP-5A <br /> Matrix Spike <br /> % Recovery: 90 95 100 100 67 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery: 90 100 100 103 73 <br /> Relative% <br /> Difference: 0.0 5.1 0.0 3.0 8.6 <br /> SEQUOIA ANALYTICAL Please Note: <br /> The LCS Is a control sample of known,Interferent free matrix that is analyzed using the same reagents, <br /> preparation and analytical methods employed for the samples. The LCS%recovery data is used for <br /> validation of sample batch results. Due to matrix effects,the CC limits for MS/MSD's are advisory only <br /> VVV r and are not used to accept or reject batch results. <br /> Vickie Tague <br /> Project Manager 3FD5801.WAT <3> <br /> I <br />