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Sequoia 610 Chesapeake Drive Redwood Gty,CA 94063 (413) 364.9600 FAX(415) 364.9233 <br /> ` 404N.Whet lane Walnut Creek.CA 9459E ($10) 911.9600 FAX($10)938.9673 <br /> Analytical 119 Striker Avenue,Suite E Sacramento,CA 95834 (916) 921.9600 FAX(916)921-0100 <br /> :t:a.: •r,.rfi^?.�:..�•',:.rti♦ 'R � f!^?,^.".:air. mx;;??:x •rx,+.!s;�\���p;"�\+r1�:r ��. '>'"!..+1. .b•:cr,.: ya�r/ �irfi/;:Nh:v�����` <br /> C(jent'i'oject I,n.�kM;Mobil"X04-3as �acy.������� �r.�������..�r-v ::�..�.r ..,�..,�i��r.�;;,�.�,��.. o• <br /> "Alton Geoscferice <br /> 30-A Lindbergh Ave. Matrix: Liquid <br /> Livermore, CA 94550 <br /> Attention: Alisa LeMay QC Sample Group: 5081083-100 Reported: Aug 28, 1995::; <br /> ... f} . .. ..... ......... . ... . <. , .,rr:__ . <br /> QUALITY CONTROL DATA RE PORT <br />!� Analyte: Benzene Toluene Ethyl Xylenes Diesel Diesel <br /> Benzene <br /> QC Batch#: GCO82295 GC082295 GCO82295 GCO82295 SP082295 SPOS2295 <br /> ' 802002-A 802002A 802002A 802002A 8015EXB 8015EXB <br /> Analy. Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 EPA 8015 EPA 8015 <br /> Prep. Method: - - - - EPA 3510 EPA 3510 <br /> Analyst: K.Nill K.Nil] K.Nill K.Nill J.Dinsay J.Dinsay <br /> ' M.S/MSD#: 5081095 5081095 5081095 5081095 - - <br /> Sample Conc.: N.D. N.D. N.D. N.D. - - <br /> Prepared Date: 8/22/95 8/22/95 8/22/95 8/22/95 - - <br /> ' Analyzed Date: 8/22/95 8/22/95 8/22/95 8/22/95 <br /> Instrument I.D.#: HP-2 HP-2 HP-2 HP-2 <br /> Cone. Spiked: 20ug/L 20pg/L 20pg/L 60pg/L . <br /> Result: 23 23 24 72 - <br /> MS %Recovery: 115 115 124 120 - <br /> Dup. Result: 22 23 25 75 - j <br /> MSD% Recov.: 110 115 125 125 <br /> RPD: 4.4 0.0 4.1 4.1 - <br /> RPD Limit: 0-20 0-20 0-20 0-20 - <br /> .....s.;;:;: <br /> ............:............:::.:............... : :.::: :::::::.....:::::...:::::.:::::::::::.:..:::•. <br /> <<<:€<:< <br /> ,:. :...:.:.:.o..._.w.n.........:...v..v........:...........:.........n....n...::n..:... :C:: <br /> ism:.:i"F.:.i::•-is:.:P:? :' :::L'r:tiiii:i:i::i:::�::i:�:i:ri:•i C:•::i:::::i:::ri::::i�:'::-}:rf:..;,:.;..:: :::...:::.t::v:::.:.:.: :.::•::::::.:�.:�::.:::...�:.�:::::-:.... <br /> I, LCS#: 1LCS082295 1LCS082295 1LCS082295 ILCS082295 LCS082295 LCS082295 <br /> ' Prepared Date: 8/22/95 8/22/95 8/22/95 8/22/95 8/22/95 8/22/95 <br /> Analyzed Date: 8/22/95 8/22/95 8/22/95 8/22/95 8/23/95 8/23/95 <br /> Instrument I.D.#: HP-2 HP-2 HP-2 HP-2 GCHP-3A GCHP-3B <br /> Cone. Spiked: 20pg/L 20pg/L 20ug/L 60pg/L 300 pg/L 3001ig/L <br /> LCS Result: 23 22 23 69 290 240 <br /> LCS % Recov.: 113 110 116 115 97 80 <br /> 1 <br /> LCS 71-133 72-128 72-130 71-120 38-122 38-122 <br /> Control Limits <br /> Please Note: <br /> The LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> SEQUOIA ANALYTICAL, #1271 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 analytical procedure. 11 <br /> `1 the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> interference,the LCS recove is to be used to validate the batch. <br /> KeV an Sla ook **MS=Matrix pike,MSD-MDuplicate,RPD=Relative%Difference <br /> 5 Project Mana <br /> 5081083.ALT <12> <br />