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J I 10 Second Avenue South,#D7,Pacheco,CA 94553 <br /> MCCAMPBELL ANALYTICAL INC. Telephone:510-798-1620 Fax:510-798-1622 <br /> L http://www.niccampbell.com E-mail: main@mccampbell.com <br /> Date Sampled: 08/18/97 <br /> Advanced GeoEnvironmental Client Project ID: Steel Guard <br /> Date Received:08/20/97 <br /> 1803 West March Lane, Ste A <br /> Stockton,CA 95207 Client Contact:Bill Little Date Extracted:08/21/97 <br /> Client P.O: Date Analyzed: 08/21/97 <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 /> 79963 S-1 S ND 91 <br /> 79964 S-2 S ND 97 <br /> 79965 S-3 S ND 93 <br /> 79966 S-4 S ND 89 <br /> 79967 S-5 S ND 95 <br /> 79968 S-6 S ND 94 <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 ntg/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 sam that contains greater than--5 vol.%sediment. <br /> DHS Certification No. 1644 Edward Hamilton,Lab Director <br />