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SEQUC A ANALYTICAL <br /> 819 Sucker Avenue, Suite 8 • Sacramento, CA 95834 <br /> y y(916) 921-9600 ® FAX (916) 921-0100 <br />' '�Y }v�iAvrSiW.6+„i••r�w�M�F n'}K nt�'�K� �]G n•v}x�vuv5.{JV � h4r3JYry Ywrcn � v.wnv{n• wcvwA'rvs'wK+m M•• ,4 • +h,vvuN.i.�geM{tri- Y3'vJti. ^4h3vY*'Jau <br /> } J ' }}75.,w•w..ar...lwvr 3.}wrJW.x:.V 43 iY� lm'Sri6rc'vµiNh+�Ar++v.Y.r <br /> ,Delta Environmental Consultants Client Project 1D #40-91-732 05, Rud Grocery <br /> ;3330 Data Drive, Suite 100 Matrix- Water <br /> Rancho Cordova, CA 95670 <br /> {Attention Jim Brownell QC Sample Goup 3040205-06 Reported Apr 16, 1993 <br /> `�' 'v" �vxv v n x n + H- Sf v}ui{ nJ 4w.ww. v.mrsv+mv rm4 a w.va wn +hv'v\n +nr w.1.wnS:+n JvYx +..2.1.YiwwwC <br /> xSixvv�.eMn+AS.-rv.C+.w6L`ct :5v.x> w.w�-+n •�". <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Ethyl- <br /> Benzene Toluene Benzene Xylenes <br /> Method: EFA 602 EPA 602 EPA 602 EFA 602 <br /> Analyst: Chiaravalloti Ch4aravailotf Charavalloti Chiaravallou <br /> Concentration <br /> Spiked: 10 10 10 30 <br /> LCS Batch#: LCSO40893 LCSO40893 LCSO40893 LCSO40893 <br /> Date Prepared: 4/8/93 4/8/93 4/8/93 4/8/93 <br /> Date Analyzed: 4/8/93 4/8/93 4/8/93 4/8/93 <br /> Instrument I.D.#: HP-2 HP-2 HP-2 HP-2 <br /> LCS % <br /> Recoverl: 100 102 101 101 <br /> ControlI-Imits: 80.120 80-120 80-120 80-120 <br /> MS/MSD <br /> Batch#: 3040193 3040193 3040193 3040193 <br /> Date Prepared: 4/8/93 4/8/93 4/8/93 4/8/93 <br /> Date Analyzed: 4/8/93 4/8/93 4/8/93 4/8/93 <br /> Instrument I.D-#: HP-2 HP-2 HP-2 HP-2 <br /> Matrix Spike <br /> % Recovery: 89 36 97 95 <br /> 1 Matrix Spike <br /> Duplicate% <br /> Recovery: 91 96 97 100 <br /> Relative % <br /> Difference: 2.2 00 00 51 <br /> 1 <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 /> U&M 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 M3/MSD's are advisory only <br /> Michael R. Giles and are not used to accept or reject batch results <br /> Laboratory Director 3040205 DLT <2' <br />