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1 <br /> LA NA L Y T [ CAL <br /> MIABORATORIES <br /> �i <br /> Certificate of Analysis <br /> . <br /> LD01, <br /> ight <br /> Del-Tech Geotechnical Services Report Issue Date 04/14/99- <br /> L. 10624 Olive Avenue <br /> Oakdale, CA 95361 <br /> Sample Date 03/25/99 <br /> Submission Number 9903000814 Sample Time 13:00 <br /> Lab Number 104962 Sampie Type LIQUID <br /> Projec: Number Valley Showcase <br /> Projec: Desc. G.W. ;Monitoring <br /> ,Sarnpie Description MW-I <br /> BSK LABORATORIES LUFI' ANALYSIS <br /> Date Date <br /> [Method Analyte Prep. Anal. Result Units PQL Dil DLR <br /> EPA 5015 / Benzene 03/31/99 03/31/99 ND µg/L 0.3 1 0.3 <br /> EPA S02C <br /> (.-MODIFIED) <br /> i EPA 8015 / Ethylbenzene <br /> EPA SC'_= 03/31/99 03/3I/99 ND gg/L 0.3 1 0.3 <br /> 1 ('v10D11IED) <br /> F" 5013 / Toluene 03/31/99 03/31/99 ND ug/L 0.3 1 0.3 <br /> �.�SC2C <br /> } EP.� 5015 / Xylenes, Total 03/31/99 03/31/99 ND ug/L 0,3 1 0.3 j <br /> EPA S,^,21-'(:�IODl.:'iED) <br /> EPA 8015 / Gasoline 03/31/99 03/31/99 ND µg/L 50 1 50 <br /> EPA SC_', <br /> r1-IC�LfL.ED) <br /> 501 Z Methvl-cert-Butyl 03/31/99 03/31/99 ND ug/L 5 l 5 <br /> SC_'0 Ether <br /> (MGDLFIED) <br /> I <br /> E ND +one Detected PQL Practical Quantitation Limit Conversions: <br /> tri;/L �liiligrams/Liter ppm Di[ Dilution Factor 1 ppm = 1000 ppb <br /> ug/L Micrograms/Liter - ppb DLR Reportable Detection Limit 1 ppb = 0.001 ppm <br /> mg.!:, Milligrams/Kilogram y ppm derived by (PQL x Dil) <br /> lg/kg Micrograms/Kilogram = ppb Higher limits may result from exceptional sample matr'ces or trtterferences <br /> 1414 5:anislaus Street Fresno, CA 93706-1623 Phone 359-497-2$88, In CA 5(10-577-3310 i%lx <br /> 1 <br /> t <br />