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Sequoia 680 Chesapeake Drive Redwood City, CA 94063 (415) 364 9600 FAX (41-il 364 9233 <br /> 404 N Wiget lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> fr�ll� Analytical s19 Straker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> r v a } } <br /> } r `.i r { i rnr N t{nrhy ` A r Z r wr r +. • rvr vritir my rv�{ �r�rAiry{ALr+S'hi <br /> Ground Zero Analysis, Inc Client Project ID 6215 Tam O'Shanter, Stockton <br /> 3422 West Hammer I Lane, Ste C294 Matrix Solid {{ <br /> Stockton, CA 95219 <br /> Attention John Lane Work Order# 951 OJ51 -01 Reported Nov 7,r 19951 <br />' ~ n r r r r ♦r t ' r ,v r r♦ r v m O ` S v rJ Sr r r ry ♦ r rrr{nr rrr n•ry !4 r ... v r M A:nro+3,'v rrn4vr i/�l.�anvlsS.n�ef`/rh nY+.+tih <br /> DUALITY CONTROL DATA REPORT <br />' Analyte: Nitrite Nitrate <br />' QC Batch#- IN1027953000ACD IN102795300DACD <br /> Analy Method: EPA 300 0 EPA 300 0 <br /> Prep. Method: N/A N/A <br />' Analyst: S Flynn S Flynn <br /> MS/MSD #. 951OJ2614 951OJ2614 <br /> Sample Cone.: N D 7300 <br />' Prepared Date: 10/27/95 10/27/95 <br /> Analyzed Date- 10/27/95 10/27/95 <br /> Instrument I.D.#- INIC1 INIC1 <br /> Cone Spiked: 1000 mg/Kg 1000 mg/Kg <br />' Result 960 8700 <br /> MS %Recovery 96 140 <br /> Dup. Result 970 8700 <br /> MSD %Recov .. 97 140 <br /> 1RPD- 10 00 <br /> RPD Limit 0-40 0-40 <br /> , + r ,~ r r ,r . r ry r v♦ v v � } • ry ry x rr. ,1rr „r{4 rr r rirS�v vrY� <br /> LCS # - <br />' Prepared Date <br /> Analyzed Date: <br /> Instrument I.D #: - - <br /> Cone Spiked - - <br /> LCS Result- <br /> LCS % Recov.. - - <br />' 60-140 60-140 <br /> LCS 90-110 90-110 <br />' Control Limits <br />' Please Note <br /> The LCS is a control sample of known,Interferent-free matrix that is analyzed using the same reagents, <br /> �Noject <br /> 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 /> er <br /> nager **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 951OJ51 GGG <I> <br /> 1 <br />