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110 2nd Avenue Soum,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC. Telephone:925-798-1620 Fax:925-798-1622 <br /> 14 http://www.mccampbell.com E-mail:main@mccampbell.com <br /> Advanced GeoEnvironmental Client Project ID:Robert Metals Date Sampled:02/08/01 <br /> 837 Shaw Road Date Received:02/13/01 <br /> Stockton,CA 95215 Client Contact:Paul Dotson Date Extracted: 02/13/01 <br /> Client P.O: Date Analyzed:02/14/01 <br /> Total Recoverable Petroleum Hydrocarbons as Oil&Grease(with Silica Gel Clean-up)by Scanning IR <br /> Spectrometry* <br /> EPA method 418.1 or 9073;Standard Methods 5520 C&F <br /> Lab ID Client ID Matrix TRPH+ %Recovery <br /> Surrogate <br /> 59985 PI-5 S ND 91 <br /> 59987 P2-5 S 25 92 <br /> 59990 P3-5 S ND 88 <br /> 59993 P4-5 S ND 94 <br /> 59996 P5-5 S ND 91 <br /> Reporting Limit unless otherwise W 1.0 mg/L <br /> stated;ND means not detected above <br /> the reporting limit S 10 mg/kg <br /> "water samples are reported in mg/L,wipe samples in mg/wipe and soils and sludges in mg/kg <br /> "surrogate diluted out of range or not applicable to this sample <br /> +At the client's request or the laboratory's discretion,one or more positive samples may be run by direct injection chromatography with FID <br /> detection. The following comments pertain to these GC results: a) gasoline-range compounds (C6-C12) are present; b) diesel range <br /> compounds (C10-C23)are present; c)oil-range compounds (>C18) are present; d)other patterned solvent(?); e)isolated peaks; f) GC <br /> compounds are absent or insignificant relative to TRPH inferring that complex biologically derived molecules are the source of IR <br /> absorption;h)a lighter than water immiscible sheen is present;i)liquid sample that contains greater than—5 vol.%sediment. <br /> DHS Certification No. 1644 Edward Hamilton,Lab Director <br />