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680 Chesapeake Drive Redwood City, CA 94063 (415) 364 9W, rAX(41.5) 364 9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> 6Ground Zero Analysis, Inc Client Project ID 6215 Tam O'Shanter, +Stockton ` <br />' 3422 West Hammer Lane, Ste C294 Matrix Solid ny <br /> Stockton. CA 95219 ` <br /> Attention John Lane Work Order# 951OJ51-03 Reported Nov 7, 1995 - <br /> QUALITY <br /> 995 -QUALITY CONTROL DATA REPORT <br />' Analyte' Nitrite Nitrate Sulfate <br /> QC Batch#. IN1103953000ACG IN1103953000ACG IN1103953000ACG <br />' Analy. Method EPA 300 0 EPA 300 0 EPA 300 0 <br /> Prep Method N/A N/A N/A <br />' Analyst` S Flynn S Flynn S Flynn <br /> MS/MSD#. 9510JSI03 951GJ5103 951OJ5103 <br /> Sample Conc : N D N D 66 <br /> Prepared Date: 11/3/95 11/3/95 11/3/95 <br /> Analyzed Date 11/3/95 11/3/95 11/3/95 <br /> Instrument I D # INIC1 INIC1 INIC1 <br /> Conc. Spiked: 100 mg/Kg 100 mg/Kg 100 mg/Kg <br />' Result. 92 100 140 <br /> MS%Recovery, 92 100 74 <br /> Dup. Result: 91 100 140 <br /> MSD% Recov.: 91 100 74 <br /> RPD 11 00 00 — <br /> RPD Limit 0-40 0.40 0-40 <br /> { Y <br /> LCS #. LCS110395 - <br />' Prepared Date. 11/3/95 <br /> Analyzed Date: 11/3/95 <br /> Instrument I.D.#: INIC1 <br /> Conc. Spiked: - 10 mg/L - <br /> LCS Result. 97 - <br /> LCS % Recov .. - 97 - <br />' 60-140 60140 60-140 <br /> LCS 90-110 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 /> S I 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 /> gy Penner <br /> Project Manager "*MS=Matrix Spike, MSD=MS Duplicate,RPD=Relative%Difference 9510J51 GGG <3> <br />