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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 404 N. Wigct Lane Walnut Creek,CA 94598 (510) 988-9600 FAX(510) 988-9673 <br /> Analytical 819 Striker Avenue,Suitt!8 Sacramento,CA 95834 (916) 9219600 FAX (916)921-0 100 <br /> .............. <br /> Columbia Analytical Services Client Project ID: U-kaul 7'09-23::� <br /> .:2059 Junction Avenue Matrix: Solid <br /> ...,San Jose, CA 95131 <br /> '..Attention: Reid Riner Work Order#: 9712F22 01-12 Reported: Jan 7, 1998 " <br /> X <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: MTBE <br /> GC Batch#: MS122997MTBEEXA <br /> Analy. Method: EPA 8260 <br /> Prep. Method: <br /> Analyst: L.Duong <br /> MS/MSD #: 9712F4903 <br /> Sample Conc.: N.D. <br /> Prepared Date: 12/29/97 <br /> Analyzed Date: 12/29/97 <br /> Instrument I.D.#: H6 <br /> Conc. Spiked: 2500,ug/Kg <br /> Result: 2100 <br /> �NES % Recovery: 84 <br /> Dup. Result: 2000 <br /> MSD % Recov.: 80 <br /> RPD: 4.9 <br /> RPD Limit: 0-25 <br /> ......... <br /> .......... ... .................... <br /> ............ <br /> ........... <br /> .... ........... ..... <br /> LCS #: LCS123197 <br /> Prepared Date: 12/31/97 <br /> Analyzed Date: 12/31/97 <br /> Instrument I.D.#: F3 <br /> Conc. Spiked: 2500 pg/Kg <br /> LCS Result: 2100 <br /> LCS % Recov.: 84 <br /> MS/MSD 60-140 <br /> LCS 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 /> i: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. I <br /> Camille G. Alcayde <br /> Project Manager MS=Matrix Spike,MSD=MS Duplicate, RPD=Relative%Difference 9712F22.CCC <3> <br /> CONDtTION(S): Q_avx fz�-� <br /> -7 <br /> 4, <br /> 3, <br /> �NV klbi'WEN Al.- HEALTH <br /> PERMIT / SERVICES <br /> EH 23 046 (Revised ?/11/9 Page 3 <br /> County Inspecior s C-AgrIULUI W. <br />