Laserfiche WebLink
'f Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9604 FAX(650) 364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (925)988-%00 FAX(925)988 9673 <br /> Analytical 849 Sinker Avenue _Suite B Sacramento CA 95 (916) 00 FAX(916)921-0300 <br /> 1455 McDowell Blvd North Ste D Petaluma, CA 949544 792 18(707) 792 1865 FAX(707) 792-0342 <br /> Blaine Tech Services Client Project ID Chevron 9-8632/980810-T2 <br /> 1680 Rogers Avenue <br /> San Jose, CA 95112 <br /> Attention Fran Thle QC Sample Group 9808853-03 04 06 Reported Aug 31 1998 <br /> QUALITY CONTROL DATA REPORT <br /> Matrix Liquid <br /> Method EPA 8020 <br /> Analyst NC <br /> ANALYTE Benzene Toluene Ethylbenzene Xyienes <br /> QC Batch # GCO82098BTEX02A <br /> Sample No GW9808731-08 <br /> Date Prepared 8120198 8/20198 8/20198 8120198 <br /> Date Analyzed 8120198 8/20/98 8/20198 8/20198 <br /> Instrument I D # GCHP02 GCHP02 GCHP02 GCHP02 <br /> Sample Conc ug/L N D N D N D N D <br /> Conc Spiked ug/L 10 10 10 30 <br /> Matrix Spike ug/L 13 11 11 36 <br /> % Recovery 130 110 110 120 <br /> Matrix <br /> Spike Duplicate ug/L 12 11 11 34 <br /> % Recovery 120 110 110 113 <br /> Relative % Difference 8 0 00 00 6 0 <br /> RPD Control Limits 0-25 0-25 0-25 0-25 <br /> LCS Batch# GWLCS082098A <br /> Date Prepared 8/20198 8/20/98 8/20198 8120198 <br /> Date Analyzed 8/20/98 8/20198 8120198 8120/98 <br /> Instrument I D # GCHP02 GCHP02 GCHP02 GCHP02 <br /> Conc Spiked ug/L 10 10 10 30 <br /> LCS Recovery uglL 10 10 10 32 <br /> LCS % Recovery 100 100 100 107 <br /> Percent Recovery Control Limits <br /> F- <br /> MSIMSD 60140 60140 60140 60140 <br /> LCS 70130 70130 70130 70130 <br /> Quality Assurance Statement All standard operating procedures and quality control requirements have been met <br /> Please Note <br /> The LCS is a control sample of known interferent free matrix that is analyzed using the same reagents <br /> EQUOIA AN LYTICAL 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 controi limits due to matrix <br /> interference the LCS recovery is to be used to validate the batch <br /> ory <br /> // anager <br />