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.i <br /> Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 4404 N Wigct Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)989 9673 <br /> wig-or Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Blaine Tech 66Mv es, Inc Y 011er t Proleci'I D dhevron 9-8264 f 970107-Z2 <br /> 1680 Rogers Avenue Matrix Liquid <br /> A San Jose, CA 95112 :} <br /> `,Attention Fran Thle Work Order# 9701261-1 Reported Jan 16, 1997' <br /> QUALITY CONTROL DATA REPORT <br /> Analyte. Beryllium Cadmium Chromium Nickel <br /> QC Batch#: ME010997601OMDA ME010997601OMDA ME010997601OMDA ME010997601OMDA <br /> Analy Method. EPA 6010 EPA 6010 EPA 6010 EPA 6010 <br /> Prep Method EPA 3010 EPA 3010 EPA 3010 EPA 3010 <br /> Analyst: R Butler R Butler R Butler R Butler <br /> MS/MSD# 970124401 970124401 970124401 970124401 <br /> Sample Conc . N D N D N D N D <br /> Prepared Date: 1/9/97 1/9/97 1/9/97 1/9/97 <br /> Analyzed Date: 1/9/97 1/9/97 1/9/97 1/9/97 <br /> Instrument I D #: MTJA2 MTJA2 MTJA2 MTJA2 <br /> Conc Spiked 1 0 mg/L 10 mg/L 1 0 mg/L 1 0 mg/L <br /> Result: 091 091 091 088 <br /> MS % Recovery, 91 91 91 88 <br /> Dup Result. 093 093 092 090 <br /> MSD % Recov : 93 93 92 90 <br /> RPD 22 22 11 22 <br /> RPD Limit: 0-20 0-20 0.20 0-20 <br /> LCS #: BLK010997 BLK010997 BLK010997 BLK010997 <br /> Prepared Date. 1/9/97 1/9/97 1/9/97 1/9/97 <br /> Analyzed Date: 1/9/97 1/9/97 1/9/97 1/9/97 <br /> Instrument I D #' MTJA2 MTJA2 MTJA2 MTJA2 <br /> Conc Spiked 1 0 mg/L 1 0 mg/L 10 mg/L 1 0 mg/L <br /> LCS Result: 093 095 093 095 <br /> LCS %Recov.. 93 95 93 95 <br /> LCS 80-120 M120 80-120 80-120 <br /> Control Limits <br /> Please Note <br /> The LCS is a control sample of known,interferent4ree matrix that is analyzed using the same reagents, <br />• Sty <br /> ALYTICAL 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 /> Per <br /> Pager **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9701261 BLA <2> <br />