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Sequoia 680 Chesapeake Dnve Redwood City CA 94063 (415) 364 9600 FAX (415) 364 9233 <br /> 404 N Wi8et Lane Walnut Creek,CA 94598 (510) 988 9600 FAX (510)988 9673 <br /> Analytical 819 Sinker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> S3�`a. ` v ~ Y N ♦ a ~ <br /> 'Pacific Environmental Group {Client Project IDSa �4 31b-097[ 1A%0123,Trac~ ..y V <br /> s 2025 Gateway Place, Suite 440 Matrix SOLID <br />' Y San Jose, CA 95110 n <br /> 'Attention Maree Doden Work Order# 9505F62 40-43 Reported Jun 7, 1995 <br /> ;( All v 1-1 v1 <br />' QUALITY CONTROL DATA REPORT <br />' Analyte 1,1-Dichloro- Tnchloro- Chloro- <br /> ethene ethene benzene <br /> GC Batch# GC0525958010EXB GCO525958010EXB GC0525958010EXB <br /> Analy. Method EPA 8010 EPA 8010 EPA 8010 <br />' Prep. Method EPA 5030 EPA 5030 EPA 5030 <br /> Analyst D Nelson D Nelson D Nelson <br />' MS/MSD# 9505GS409 9505G8409 9505G8409 <br /> Sample Conc N D 210 N D <br /> Prepared Date 5/25/95 5/25/95 5/25/95 <br /> Analyzed Date 5/26/95 5/26/95 5/26/95 <br /> Instrument I D # GCHP9 GCHP9 GCHP9 <br /> Conc. Spiked 2501J9/K9 250pg/Kg 250pg/Kg <br /> Result 190 320 220 <br /> MS % Recovery 76 44 88 <br /> Dup Result 210 320 220 <br />' MSD % Recov 84 44 88 <br /> RPD 10 00 00 <br /> RPD Limrt. 0-50 0-50 0-50 <br />' LCS #' BLK052595 BLK052595 BLK052595 <br /> Prepared Date: 5/25/95 5/25/95 5/25/95 <br /> Analyzed Date: 5/26/95 5/26/95 5/25/95 <br />' Instrument I.D.#: GCHP9 GCHP9 G0HP9 <br /> Conc. Spiked 25pg/Kg 25pg/Kg 25pg/Kg <br /> LCS Result 28 33 27 <br />' LCS % Recov.. 112 132 108 <br /> rLCS 28-167 35-146 38-150 <br /> Control Limns <br /> Please Note <br /> The LCS Is a control sample of known,interferent-free matrix that Is analyzed using the same reagents, <br /> t <br /> Q OI NALYTICAL 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 K <br /> Um-recovery of analytes from the matrix spike does not fall within specified control limits due to matnx <br /> Interference,the LCS recovery is to be used to validate the batch <br /> Eileen A anning **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference <br /> Protect Manager Page 1 of 2 9505F62 PPP <6> <br />