Laserfiche WebLink
1Z Sequoia <br /> 680 Chesapeake Drive Redwood C,[v CA 94063 (415) 364-9600 FAX(415)354 9233 <br /> 1900 Bates Avenue Suite L Concord CA 94520 (5101 686 9600 FAX (510) 686 9689 <br /> Analytical 919 Stroke,Avenue Sete 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 WOO <br />• Brown & Caldwell Client Project ID Arco 2133-94-5 t <br /> 1 , Stockton <br /> 9616 Micron Ave Suite 600 Matrix Water <br /> Sacramento, CA 95827 <br /> Attention Mindy Wright QC Sample Goup 411-0186 Reported Nov 17, 1994 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Ethyl_ <br /> Benzene Toluene Benzene — Xylenes Lead <br /> Method EPA 8020 EPA 8020 EPA 8020 EPA 8020 EPA 200 7 <br /> Analyst: C Lee C Lee C Lae C Lee 0 Ballard <br /> Concentration <br /> Spiked 10 ug/L 10 ug/L 10 ug/L 30 ug/L 1 0 mg/L <br /> LCS Batch#: LCS110894 LCS110894 LCS110894 LCS110894 LCS111494 <br /> Date Prepared: 11/8/94 11/8/94 11/8/94 11/8/94 11/14/94 <br /> Date Analyzed: 11/8/94 11/8/94 11/8/94 11/8/94 11/15/94 <br /> Indrurnent 1 D.#: GCHP-2 GCHP-2 GCHP-2 GCHP-2 P40 <br />. LCS% <br /> Recovery: 100 100 100 100 91 <br /> Control Limits: 75-125 75-125 75-125 75-125 80-120 <br /> ..wy..?e A , a.,y.. .,-,,. ,,..,,,.<<J,a y h v r h,y, , w,h... ,...»err ,.r.. ,,,,v.v..,�3�s••arr r^ t r +s x� ..�n a..,rroY+.,,+r..,„ m h sn,.„}.+}+� M�v#yuS{�e q.HccgH;4e + <br /> v.[} 4 n G • rr YrTrNdkk«Nr.'tr?i va+4r'..•.�ia.w-iwc <br /> MS/MSD <br /> Batch#: 4110179 4110179 4110179 4110179 4110168 <br /> Date Prepared: 11/8/94 11/8/94 11/8/94 11/8/94 11/14/94 <br /> Date Analyzed: 11/8/94 11/8/94 11/8/94 11/8/94 11/15/94 <br /> Instrument I.D.#: GCHP-2 GCHP-2 GCHP-2 GCHP-2 P40 <br /> Matrix Spike <br /> %Recover/: 98 99 98 100 92 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery: 98 98 97 97 91 <br /> Relative% <br /> Difference: 00 10 10 30 1 1 <br />•SEQUOIA ANALYTICAL Please Nate <br /> _ - The LCS is a control sample of known,interferent tree 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 /> a o validation of sample batch results Due to matrix effects,the QC limits for MS/MSM are advisory only <br /> Je Higgins and are not used to accept or reject batch results <br /> Project Manager <br /> 4110186.BRS <3> <br />