Laserfiche WebLink
j SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive - Redwood City, CA 94063 <br /> f (415) 364-9600 - FAX(415) 364-9233 <br /> ry. -.:.:.::.::.::.�: ................ <br /> .. n:.. _ <br /> RESNA Client Project ID: W0195.00,Western Stone,Tracy" <br /> 1710 Main Street Matrix: Water <br /> Escalon, CA 95320 <br /> Attention. Greg Stahl OC Sample Group:.3G <br /> E8501 Reported: Aug5,.......................�> <br /> 1993 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Ethyl- <br /> Benzene Toluene Benzene Xylenes Diesel <br /> Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 EPA 8015 <br /> Analyst: M.Nipp M.Nipp M. Nipp M.Nipp C.Lee <br /> Conc. Spiked: 10 10 10 30 300 <br /> Units: {ig/L N9/L ug/L r19/L yg/L <br /> LCS Batch#: BLK080393 BLK080393 BLK080393 BLK080393 BLK080293 <br /> Date Prepared: - - - 8/2/93 <br /> Date Analyzed: 8/4/93 8/4/93 8/4/93 8/4/93 8/3/93 <br /> Instrument LD.#: GCHP-2 GCHP-2 GCHP-2 GCHP-2 GCHP-5A <br /> LCS % <br /> Recovery: 94 94 94 93 85 <br /> Control Limits: 60-120 80-120 80-120 60-120 50-150 <br /> .......... <br /> .:.::':.{:trrn.:..r:..:.•,:r:.::trr..:ar::{.:.r,.:...x{.r 4;;r::}.:::..xr;a:;:a:{.ry�n.}r is{tixo<:{ <br /> .:.:,.....:.:.. '.X.:1.: .r....r it <br /> .r ... <br /> MS/MSD <br /> Batch#: 3GE4005 3GE4005 3GE4005 3GE4005 3GE4003 <br /> Date Prepared: - - - - 8/2/93 <br /> Date Analyzed: 6/4/93 8/4/93 8/4/93 8/4/93 8/3/93 <br /> Instrument I.D.#: GCHP-2 GCHP-2 GCHP-2 GCHP-2 GCHP-5A <br /> Matrix Spike <br /> %Recovery: 94 94 96 93 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery: 96 95 96 97 <br /> Relative% <br /> Difference: 2.1 1.1 0.0 4.2 <br /> * Matrix s ike recoveries low due to sample dilution. <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 /> !ki <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 OC limits for MS/MSD's are advisory only <br /> and are not used to accept or reject batch results. <br /> Vie Ta e <br /> Project Manager 3GE8501.WAT <3> <br />