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' j ■ ' Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364-9600 FAX(415) 364-9233 <br /> 16 <br /> Analytical 404 N.Wiget Lane Walnut Creek,CA 94598 (510) 988-9600 FAX(510)988-9673 <br /> 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921-0100 <br /> :.r...... •:l•:i?v vri^ <br /> n.,.h'fi wr.a <br /> �'•1ry +:W:ri�Y i...v. :4:i•:C•Y1�::Avi:*:h:.,v,•:[i•ri.:}}>..n� <br /> CdN Associates �"Cflerit��l�ro�ect�lf�'"�'` <br /> i Ar"co 2186,•`Stockton'J�•`Y'.C).V�#1�785fi���� <br /> 1433 N. Market Blvd. Matrix: Soil <br /> Sacramento, CA 95834 <br /> Attention: Claudio Avila OC: Sample Group 5090285-29Reported::��:. ::�:•,r 6 Re P Sep 22, 1995" <br /> ..... ..:..;: .::::::.:w.v::::.vv.::v:v:x.:v :.:x+:•.v.:.::•.:.•x;•::v::::r <br /> : :... �+:..v::..:.rti..:i:;=}::i. '•:i-:''r''.:. �.:::{n.::�{.;}::.:•::.v.v.:rv•w :..:.uvn:•n.:.::•. ... <br /> ' ...:.v iic•5R.}:st v..{::v...,..:v,.. ......::: ,:,..,..:.- .:.:..,:..r}...v:.,::.:.,-.-t.y'.`.r:.KS.xAH°:�e ..:...,..dar„a <br /> :.:,...:.,.nr::n,.{.:v.ti)ti.?;i:y:.}M.:i•:.::":G}:u.n:. : Ty....i:.r:::v'•_{-.i:Yti:•:4i w.':Y•'. :T.a�O'FF:4:t:w:S•'4%.':w.•'..: <br /> ' QUALITY CONTROL DATA REPORT <br /> NALYTE Ethyl- <br /> Benzene Toluene Benzene Xylenes <br /> Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Analyst: V.Owens V.Owens V.Owens V.Owens <br /> Concentration <br /> Spiked: 0.20 mg/kg 0.20 mg/kg 0.20 mg/kg 0.60 mg/kg <br />' LCS Batch#: LCSW1595 LCS091595 LCS091595 LCSM1595 <br /> Date Prepared: 9/15/95 9/15/95 9/15/95 9/15/95 <br /> Date Analyzed: 9/15/95 9/15/95 9/15/95 9/15/95 <br /> Instrument I.D.#: GCHP-1 GCHP-1 GCHP-1 GCHP-1 <br /> LCS % <br /> Recovery: 96 95 96 95 <br /> Control Limits: 75-125 75.125 75.125 75-125 <br /> .r:.....n.•s} <br /> %4 ;:?i'< t?2Si�[`[Ycr:%�r'ii ?i�iE i�?t c5i <3'.i:'i ::':::E:ii[;S%a'':'-Y:�is iC'i<:. S:n.!��i:��''`4?-y�:-`•`::'r�?'>s:`?ii c>[`i<�i�f:��['Yt� 't :jj<i? :'.Y?i;'._%ip i'<`� �i-3?ii Yr'='i'L�l`t`ziaVµt�::=i:C.2;:`:e: � R'fiL: c:�5:::%: <br /> ...,...........:.....,..rv.:.rv..::,rvn...,..,:•:::::..v:rv.::::::::h.:v::::.�:.:�:n,:v:...v:::::.:•::::::•.:•.,::.,..:;o-}::,,•_:,:•:o-r::�:;aw::wh:c>}}:.w:[ar'aN'':'dx.h'i��:`::`:•;�;;::cs>r <br /> MS/MSD <br /> Batch #: 5090136 5090136 5090136 5090136 <br />' Date Prepared: 9/15/95 9/15/955 9/15/95 9/15/95 <br /> Date Analyzed: 9/15/95 9/15/95 9/15/95 9/15/95 <br /> Instrument I.D.#: GCHP-1 GCHP-1 GCHP-1 GCHP-1 <br />' Matrix Spike <br /> %Recovery: 92 91 90 92 <br />' Matrix Spike <br /> Duplicate% <br /> Recovery: 100 99 100 99 <br /> Relative% <br /> Difference: 8.3 8.4 11 7.3 <br /> SEQCIOIA ANALYTICAL ease Note: <br /> The LCS is a control sample of known,interferent free matrix that is analyzed using the same reagents, <br /> reparation 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 QC limits for MS/MSD's are advisory only <br /> JanetPian and are not used to accept or reject batch results. <br /> Project Manager <br />' 5090285.EMC <4> <br /> s� <br />