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Sequoia 680 Chesapeake Dnve Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Stnker Avenue,Sucre 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> < <br /> BlaineTechServices, Inc Client Project 16 Chevron'9-8264/970107-72 <br /> v 1680 Rogers Avenue Matrix Liquid <br /> San Jose, CA 95112 <br /> Attention Fran Thle Work Order# 9701261-01 Reported Jan 16, 1997, <br /> QUALITY CONTROL DATA REPORT <br /> Analyte, Phenol 2-Chlorophenol 1,4-Dichloro- N-Nitroso-Di- <br /> benzene N-propylamine <br /> QC Batch# MS0107978270ExA MS0107978270EXA MS0107978270EXA MS0107978270EXA <br /> Analy. Method EPA 8270 EPA 8270 EPA 8270 EPA 8270 <br /> Prep Method, EPA 3510 EPA 3510 EPA 3510 EPA 3510 <br /> Analyst E Manuel E Manuel E Manuel E Manuel <br /> MS/MSD # BLK010797 BLK010797 BLK010797 BLK010797 <br /> Sample Cone N D ND N D ND <br /> Prepared Date: 1/7/97 1/7/97 1/7/97 1/7/97 <br /> Analyzed Date 1/8/97 1/8/97 1/8/97 1/8/97 <br /> Instrument I D #: F4 F4 F4 F4 <br /> Cone Spiked: 200 ug/L 200 ug/L 200pg/L 200ug/L <br /> Result: 74 174 119 162 <br /> MS % Recovery- 37 87 60 81 <br /> Dup. Result 83 179 122 171 <br /> MSD%Recov 42 90 61 86 <br /> RPD 11 28 25 54 <br /> RPD Limit 0.30 0.30 0-30 0-30 <br /> LCS #: WBO10997 WBO10997 WB010997 WBO10997 <br /> Analyst. B Pitamah B Pitamah B Pitarnah B Pitamah <br /> Prepared Date- 1/9/97 1/9/97 1/9/97 1/9/97 <br /> Analyzed Date 1/12/97 1/12/97 1/12/97 1/12/97 <br /> Instrument I D # F4 F4 F4 F4 <br /> Cone Spiked 200pg/L 200 ug/L 200yg/L 200 ug/L <br /> LCS Result- 79 170 148 170 <br /> LCS % Recov.. 40 85 74 85 <br /> LCS <br /> Control Limits 12-110 27 123 36-97 41-116 <br /> Please Note <br /> The LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> 7genner <br /> LYTICAL 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 /> **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference <br /> r Page 1 of 3 9701261 BLA <8> <br />