Laserfiche WebLink
4 <br /> Sequoia 680 Chesapeake Drive Rcdwood City,CA 94063 (415) 364 9600 IAX(415) 364 9233 <br /> 404 N Wegct Lane Walnut Creek CA 94598 (510) 988 9600 1AX(510)988 9673 <br /> q1L Analytical 819 Striker Avenue,Suitc 8 Sacramento,CA 95834 (916) 921 9600 IAX (916) 921 0100 <br /> Gettler Ryan/Geostrategles Client Project IDz' W Unocal 6981, Paaflc Ave x <br /> 3164 Gold Camp Drive #240 Matrix Liquid <br /> Rancho Cordova, CA 95670 = <br /> Attention Greg Gurss Work Order# 9706C85 -01 Reported Jul 8, 1997, <br /> r r•} r. v • M1 n ♦ r V• v n r nr r rn r rr r r r r r v rw h <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Benzene Toluene Ethyl Xylenes Gas <br /> Benzene <br /> QC Batch# GCO62697BTEX02A GCO62697STEX02A GCO62697BTEX02-A GCG62697BTEX02A GCO62697BTEX02A <br /> Analy Method EPA 8020 EPA 8020 EPA 8020 EPA 8020 EPA 8015M <br /> Prep Method EPA 5030 EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst A Miraftab A Miraftab A.Miraftab A Miraftab A Miraftab <br /> MS/MSD #. 9706C0003 9706CO003 970600003 970600003 9706C0003 <br /> Sample Cone . N D N D N D N D N D <br /> Prepared Date. 6/26/97 6/26/97 6/26/97 6/26/97 6/26/97 <br /> Analyzed Date- 6/26/97 6/26/97 6/26/97 6/26/97 6/26/97 <br /> Instrument LD # GCHP2 GCHP2 GCHP2 GCHP2 GCHP2 <br /> Cone Spiked 10,ug/L 10pg/L 10 fig/L 30 jig/L 60pg/L <br /> Result 99 97 99 30 67 <br /> 40S % Recovery 99 97 99 100 112 <br /> Dup Result 77 76 81 23 54 <br /> MSD % Recov 77 76 81 77 90 <br /> RPD 25 24 20 26 21 <br /> RPD Limit 0-25 0-25 0-25 0-25 0-25 <br /> r s r r s{ <br /> r• v v *^ vu r r } 1 n r4rr v ' . r r r L <br /> LCS #: BLK062697 BLK062697 BLK062697 BLKp62697 BLK062697 <br /> Prepared Date 6/26/97 6/26/97 6/26/97 6/26/97 6/26/97 <br /> Analyzed Date 6/26/97 6/26/97 6/26/97 5/26/97 6/26/97 <br /> Instrument I D #. GCHP2 GCHP2 GCHP2 GCHP2 GCHP2 <br /> Cone Spiked 10pg/L 10yg/L 10pg/L 30pg/L 60u9/L <br /> LCS Result 87 85 86 26 59 <br /> LCS % Recov .. 87 85 86 87 98 <br /> 60-140 60-140 60-140 60-140 60-140 <br /> LCS 70-130 70-130 70-130 70-130 70-130 <br /> Control Limits <br /> PleaseiNote <br /> The LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> QUOTA 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 /> i e Gregory <br /> Project Manager **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative% Difference 9706085 GET <I> <br />