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A y A L Y T j <br /> � C A L . <br /> LABORATORIES <br /> Certificate of Analysis <br /> �on Li he <br /> Del-Tec Geotechnical Services Preparation Dace 04/07/99 <br /> O062$ Olive Avenue PAnalysis Date 04/07/99 <br /> akdale, CA 95361 Re or'T Issue Date 04/14/99 <br /> r. <br /> Sample Date 03/25/99 <br /> Lab <br /> omission Number 9903000814 Sample Time 13:14 <br /> Number 104967 Sample Type LIQUID <br /> Project Number . Valley Showcase <br /> Project Desc. G.W. Monitoring <br /> ample Description MW-2 <br /> Oxygenates by GUMS 8260M <br /> i. nalyte Result Units. PQL D11 DLR <br /> Methyl-t-Butyl Ether ND ug/L 5.0 1 5 <br /> L)i-isopropyl Ether ND ug/L 5.0 1 5 <br /> thyl t-Butyl Ether ND ug/L 5.0 l 5 <br /> t-Amyl Methyl Ether ND gg/L 5.0 1 3 <br /> tert-Butyl Alcohol ND ug/L 30 l 50 <br /> i <br /> f <br /> -D None Detected PQL Practical Quantitation Limit Conversions: <br /> g/L Milligrams/Liter = ppm Dil Dilution Factor 1 ppm 1000 ppo <br /> Micrograms/Liter ppb DLR Reportable Detection Limit 1 ppb = 0.001 ppm <br /> ��kg llilii;rams/Kilogram = ppm derived by (PQL x Dil) <br /> Micrograms/Kilogram d ppb Higher limits may result From exceptional sample matrices or interferences <br /> L) <br /> Lr <br /> e 1414' _I,:nl5laUS Street Fresno, CA 93706.1623 Phone 359-497-2888, In CA 500-8774,310 Fax ':�9-455-693: <br />