Laserfiche WebLink
Ll Jr a <br /> (D680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> Sequoia 404 N Wlget Lane Walnut Creek.CA 94598 (925)988-9600 FAX(925)988-9673 <br /> (,I,D Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921 9600 FAX(916)9Z] 0100 <br /> 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707) 792-1865 FAX(707)792 0342 <br /> ATC Associates, Inc Client Project ID Farmer Property 62596 0001-01 <br /> 1260 Graphics Drive <br /> Modesto, CA 95351-1502 <br /> Attention Jeanne Homsey QC Sample Group 9809G78-01-03,05-08 Reported Oct 5, 1998 <br /> QUALITY CONTROL DATA REPORT <br /> Matrix Liquid <br /> Method EPA 8015 <br /> Analyst N C <br /> ANALYTE Gasoline <br /> QC Batch# GCO93098BTEX03A <br /> Sample No GW9809E94-1 <br /> Date Prepared 9130198 <br /> Date Analyzed 9130198 <br /> Instrument I D# GCHP03 <br /> Sample Cone , ug/L N D <br /> Conc Spiked, ug/L 250 <br /> Matrix Spike, ug/L. 220 <br /> % Recovery 86 <br /> Matrix <br /> Spike Duplicate, ug/L 220 <br /> % Recovery 87 <br /> Relative % Difference 1 2 <br /> RPD Control Limits 0-25 <br /> LCS Batch# GWLCS093098A <br /> Date Prepared 9130198 <br /> Date Analyzed 9130198 <br /> Instrument I D# GCHP03 <br /> Cone Spiked ug/L 250 <br /> LCS Recovery u91L 220 <br /> LCS % Recovery 88 <br /> Percent Recovery Control Limits <br /> rVISIMSD 60-140 <br /> LCS 70-130 <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 /> 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 /> K an K7 <br /> am <br /> rolect Manager <br />