|
r�
<br /> Sequoia680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233
<br /> 404 N Wigct Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)988 9673
<br /> Analytical 819 Striker Avenue,Suite 8 Sacramento, CA 95834 (916) 921 9600 FAX(916)921 0100
<br /> i
<br /> t w.x i r 4 v, v i ]A ♦ ,♦ , ,try , +, v,y i4 r` , � `r } ry x +. r v nmv v + + v'.m , r {n r l r N rv++.v rN+h,+ixv+e$+n}}h
<br /> 4 Gettle�Ryan�Geostrategles } ' Yr�VClient JProject Al©'V V'Unoca14i07'PaclficJ6981
<br /> s 6747 Sierra Court, Ste J Matrix Liquid 4}
<br /> 3}
<br /> A Dublin, CA 94566
<br /> ,Attention Steve Carur Work Order# 96021-139 -02 Reported Feb 29, 1996 v°
<br /> ,\vrwn+4r-,+ ++ , uxv C r inv u v vv r ,+nv. +} ,ry ,y n,v v x , ♦4 rr rvr + r nrr♦ + +u
<br /> QUALITY CONTROL DATA REPORT
<br /> Analyte. Benzene Toluene Ethyl Xylenes
<br /> Benzene
<br /> QC Batch# GCO22896BTEX17A GCO228968TEX17A GCO22895BTEX17A GCO22896BTEX17A
<br /> Analy Method EPA 8020 EPA 8020 EPA 8020 EPA 8020
<br /> Prep Method EPA 5030 EPA 5030 EPA 5030 EPA 5030
<br /> Analyst J Woo J Woo J Woo J Woo
<br /> MS/MSD #' G9602678-01C 139602678-01C G96021378-01C G9602B78-01C
<br /> Sample Cone N D N D N D N D
<br /> Prepared Date: 2/28/96 2/28/96 2/28/96 2/28/96
<br /> Analyzed Date- 2/28/96 2/28/96 2/28/96 2/28/96
<br /> Instrument I D # GCHP17 GCHP17 GCHP17 GCHP17
<br /> Cone Spiked. 10 ug/L 10 ug/L 10 ug/L 30 ug/L
<br /> Result 10 10 10 30
<br /> MS % Recovery: loo 100 100 100
<br /> Dup. Result 10 10 11 32
<br /> MSD % Recov 100 100 110 107
<br /> RPD 00 00 95 S5
<br /> RPD Limit. 0-50 0-50 0-50 0-50
<br /> Y "; , `}rv,,.. . ,. .,. ,i r ., > , nn . ,ir ft:c.[ rY}v.r •4., ",rr:r ...n , ,v ., ,. rr> r+I 44 � „or t.,9.:+.rr,iu.r,,:r 9'
<br /> LCS # GBLK022896A GBLK022896A GBLK022896A GBLK022896A
<br /> Prepared Date 2/28/96 2/28/96 2/28/96 2/28/96
<br /> Analyzed Date. 2/28196 2/28/96 2/28/96 2/28/96
<br /> Instrument l.D #' GCHP17 GCHP17 GCHP17 GCHP17
<br /> Cone. Spiked 10 ug/L 10 ug/L 10 ug/L 30 ug/L
<br /> LCS Result 98 98 99 29
<br /> LCS % Recov." 98 98 99 97
<br /> LCS 70-130 70-130 70.130 70-130
<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 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 if
<br /> the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix
<br /> interference,the LCS recovery is to be used to validate the batch
<br /> Mike Gregory
<br /> Project Manager **MS=Matrix Spike,MSD=MS Duplicate, RPD=Relative%Difference 96021-139 GET <2>
<br />
|