Laserfiche WebLink
' Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wiget 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 /> 4upgradlent"E': <br /> rivl'ronmental� $d6nt Project 16} Apache E'las'tics 4Y y fry v v v }Y <br /> ' P 0 Box 8002 Matrix Water <br /> Stockton, CA 95208 <br /> Attention Vic Cherven QC Sample Group 7060537-0540 Reported Jun 27, 1997 <br /> ,. ^Rq au x vkF ♦ A vun .. o iy \y 4S,v xS+LS n$ ,... <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Ethyl- <br /> Benzene Toluene Benzene Xylenes <br /> Method EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> ' Analyst. S Phillips S Phillips S Phillips S Phillips <br /> Concentration <br /> Spiked. 10 ug/L 10 ug/L 10 ug/L 30 ug/L <br /> ' LCS Batch# LCS052397 LCS062397 LC6062397 LC—SOM97 <br /> Date Prepared' 06/23/97 06/23/97 06/23/97 06/23/97 <br /> ' Date Analyzed' 06/23/97 06/23/97 06/23/97 06/23/97 <br /> instrument I D.# GCHP-2 GCHP-2 GCHP-2 GCHP-2 <br /> LCS % <br /> Recovery 96 89 88 87 <br /> Control Lirnits 7(] 130 70-130 70-130 70.130 <br /> zi <br /> MS/MSD <br /> ' Batch#. 7060644 7060644 7060644 7060644 <br /> Date Prepared- 06/23/97 06/23/97 06/23/97 06/23/97 <br /> ' Date Analyzed* 06/23/97 06/23/97 06/23/97 06/23/97 <br /> instrument LD #' GCHP-2 GCHP-2 GCHP-2 GCHP-2 <br /> Matrix Spike <br /> ' % Recovery 91 86 82 80 <br /> Matrix Spike <br /> ' Duplicate% 80 <br /> Recovery. 92 82 82 <br /> Relative% <br /> ' Difference, 1 1 12 00 00 <br /> SE Q dlA ANALYTICAL ease Note <br /> The LCS is a control sample of known,interferent free matrix that is analyzed using the same reagents, <br /> n/ reparation 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 QC limits for MS/MSD's are advisory only <br /> ana M Fruciano and are not used to accept or reject batch results <br /> role <br /> ct Manager/Sacramento Labora ory <br /> 7064637 UU Li <5> <br />