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q� <br /> SUPERIOR ANALYTICAL LA®ORATORY, INC. <br /> - 1555 BLIAKE, UNITI•SAN FRANCISCO, CA 94124• PHONE(415) 647-2081 ®� <br /> C E R T i F I C A T E 0 f' A N A L Y S I 5 <br /> LABORATORY NO. : 52498 PATS REQUESTED: 09/17190 <br /> CLIENT: Leedshill - Herkenhoff, Inc. DATE REPORTED: 09/19 <br /> CLIENT .108 NO. : 90019. 12 /90 <br /> ANALYSIS FOR TOTAL PETROLEUM HYDROCARBONS <br /> by Modified EPA SW-846 Method 5030 and 8015 l <br /> w LAB Concentration (mg/kg) <br /> S 00 <br /> Sample-Identification gasoline Range <br /> ---- <br /> 2 S83-25t 37 70 <br /> 3 SB4--15 4 <br /> - 4 S34-25 2 <br /> 5 Sao-1a <br /> i. B SBB-25 NDC1 <br /> c ND<1 - <br /> mg/kg - parts Per million (ppm) <br /> A <br /> I Minimum Detection Limit for gasoline in Soil : img/k,g <br /> �-' CAQC Summary: <br /> Dally Standard run at 2mg/L: RPD Gasoline = <15% <br /> MS/MSD Average Recovery SO%: Duplicate RPD <br /> A ¢ <br /> t <br /> '- Richard Srna. .ph.Ei. <br /> LahoratoryD,D re or <br /> v <br /> s <br /> OUTSTANDING QUAWYAND SERVICE <br /> g. <br /> - <br />