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0 0 <br /> Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 404 N.Wiget Lane Walnut Creek,CA 94598 (510) 988.9600 FAX(510)988-9673 <br /> 6)MI6 Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921-0 100 <br /> Columbia Analytical Services Client Project ID. U-Haul 709-23 <br /> :'2059 Junction Avenue Matrlx: Solid <br /> San Jose, CA 95131 <br /> 'Attention: Reid Riner Work Order#: 9712F22 01-12 Reported: Jan 7, 1998 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Benzene Toluene Ethyl Xylenes Gas <br /> Benzene <br /> QC Batch#: GC123197BTEXEXB GC123197BTEXEXB GC123197BTEXEXB GC123197BTEXEXB GC123197BTEXEXB <br /> Analy. Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 EPA 8015M <br /> Prep. Method: EPA 5030 EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst: J. Minkel J. Minkel J. Minkel J. Minkel J.Minkel <br /> MS/MSD#: 99712F1401 99712F1401 99712F1401 99712F1401 99712F1401 <br /> Sample Conc.: N.D. N.D. N.D. N.D, N.D. <br /> Prepared Date: 12/31/97 12/31/97 12/31/97 12/31/97 12/31/97 <br /> Analyzed Date: 1/2/98 1/2/98 1/2/98 1/2/98 1/2/98 <br /> Instrument I.D.#: GCHP22 GCHP22 GCHP22 GCHP22 GCHP22 <br /> Conc. Spiked: 0.20 mg/Kg 0.20 mg/Kg 0.20 mg/Kg 0.60 mg/Kg 1.2 mg/Kg <br /> Result: 0.020 0.030 0.040 0.17 0.40 <br /> IVS % Recovery: 10 15 20 28 33 <br /> Dup. Result: 0.020 0.030 0.030 0.14 0.30 <br /> MSD % Recov.: 10 15 15 23 25 <br /> RPD: 0.0 0.0 29 19 29 <br /> RPD Limit: 0.25 0-25 0-25 0-25 0-25 <br /> LCS #: BLK123197 BLK123197 BLK123197 BLK123197 BLK123197 <br /> Prepared Date: 12/31/97 12/31/97 12/31/97 12/31/97 12/31/97 <br /> Analyzed Date: 1/2/98 1/2/98 1/2/98 1/2/98 1/2/98 <br /> Instrument I.D.#: GCHP22 GCHP22 GCHP22 GCHP22 GCHP22 <br /> Conc. Spiked: 0.20 mg/Kg 0.20 mg/Kg 0.20 mg/Kg 0.60 mg/Kg 1.2 mg/Kg <br /> LCS Result: 0.17 0.17 0.17 0-47 1.2 <br /> LCS % Recov.: 85 65 85 78 100 <br /> 60-140 60-140 60-140 60.140 60-140 <br /> LCS 70-130 70-130 70-130 70-130 70-130 <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 /> QUOIA 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 /> Camille G. Alcayde <br /> - Project Manager **MS=Matrix Spike,MSD=MS Duplicate, RPD=Relative% Difference 9712F22.CCC <1> <br /> n`?, <br />