Laserfiche WebLink
" <br /> Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> -1 404 N Wiget lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> D819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Iwo Analytical 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707) 792-1865 FAX(707)792-0342 <br /> i <br /> ATC Associates, Inc Client Project ID KOK Realty 62581 0001 <br /> 1117 Lone Palm Avenue <br /> Modesto CA 95351-1502 <br /> Attention Tom Lutterman QC Sample Group 9812819-01-04 Reported Dec 23 1998 <br /> QUALITY CONTROL DATA REPORT <br /> Matrix Liquid <br /> Method EPA 8020 <br /> Analyst MM <br /> ANALYTE Benzene Toluene Ethyibenzene Xylenes <br /> QC Batch # GC121898BTEX17A <br /> Sample No GW9812881-4 <br /> Date Prepared 12/18/98 12/18/98 12/18/98 12/18/98 <br /> Date Analyzed 12/18/98 12/18/98 12/18/98 12/18/98 <br /> Instrument 1 D # GCHP17 GCHP17 GCHP17 GCHP17 <br /> Sample Conc u9JL N D N D N D N D <br /> Conc Spiked uglL 10 10 10 30 <br /> Matrix Spike uglL 9 1 9 1 9 9 27 <br /> • % Recovery 91 91 99 90 <br /> Matrix <br /> Spike Duplicate ug/L 9 3 8 9 9 4 27 <br /> % Recovery 93 89 94 90 <br /> Relative % Difference 2 2 2 2 5 2 0 0 <br /> RPD Control Limits 0-25 0-25 0-25 0-25 <br /> LCS Batch# GC121898BTEX17A <br /> Date Prepared 12/18/98 12/18/98 12/18/98 12/18/98 <br /> Date Analyzed 12/18/98 12/18/98 12/18/98 12/18/98 <br /> Instrument I D # GCHP17 GCHP17 GCHP17 GCHP17 <br /> Conc Spiked ug/L 10 10 10 30 <br /> LCS Recovery ug/L 9 0 8 8 9 5 26 <br /> LCS % Recovery 90 88 95 87 <br /> Percent Recovery Control Limits <br /> F- <br /> IVISIVISO 60140 60140 60140 60 140 <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 /> EQU41A 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 11 <br /> the recovery of analytes from the matrix spike does not fall within specified control limits due to matrfx <br /> interference the LCS recovery is to be used to validate the batch <br /> Kaye' IKI Val <br /> Pr t Maria <br />