Laserfiche WebLink
Sequoia i 680 Chesapeake Drive Redwood City,CA (415) 364-9600 FAX(415) 364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 945 8 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Striker Avenue Suue 8 Sacramento,CA 95834 (916) 921.9600 FAX(916)921 0100 <br /> PPpgradien't Environmental` Client Project 10 Apache Plastics k <br /> 0 Box 8002 Matrix Water/Air <br /> Stockton, CA 95208 <br /> Attention Vic Cherven QC Sample Group 6120105-7 Reported Dec 13, 1996' <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. 8 Williams B Williams B Williams B Williams <br /> Concentration <br /> Spiked 10 ug/L 10 ug/L 10 ug/L 30 ug/L <br /> LCS Batch# LCS120696 LCS120696 LCS120696 LCS12D696 <br /> Date Prepared 12/06/96 12/06/96 12/06/96 12/06/96 <br /> Date Analyzed. 12/06/96 12/06/96 12/06/96 12/D6/96 <br /> Instrument I D#. GCHP-2 GCHP-2 GCHP-2 GCHP-2 <br /> LCS% <br /> . Recovery 106 108 109 111 <br /> Control Limits 70-13D 70-130 70-130 70-130 <br /> MS/MSD <br /> Batch# 6120094 6120094 6120094 6120094 <br /> Date Prepared: 12/06/96 12/06/96 12/06/96 12/05/96 <br /> Date Analyzed 12/06/96 12/06/96 12/06/96 12/06/96 <br /> Instrument I D.# GCHP-2 GCHP-2 GCHP 2 GCHP-2 <br /> Matrix Spike <br /> %Recovery. 101 103 102 104 <br /> Matrnc Spike <br /> Duplicate% <br /> Recovery' 104 107 106 108 <br /> Relative iib <br /> Difference. 29 38 38 38 <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 /> preparation and analytical methods employed for the samples The LCS%recovery data is used for <br /> 0 C$illlNw� validation of sample batch results Due to matrix effects,the QC limits for MS/MSD's are advisory only <br /> "aragieba and are not used to accept or reject batch results <br /> Project Manager/Sacramento Labors ory <br /> 6120105 UUU <4> <br />