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+ 110 2nd Avenue South,##D7,Pacheco,CA 94553-5560 <br /> MCCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http llwww mccampbell„com E-mail main@mccampbell corn <br /> Ground Zero Analysis,Inc Client Project ID #256, Gabbard Date Sampled 10/25-10/27/99 <br /> 1714 Mam Street Date Received 10/29/99 <br /> Escalon,CA 95320 Client Contact John Lane Date Extracted 10/29-11/05/99 <br /> Client P O Date Analyzed 10/29-11/05/99 <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 /> 24354 GAB SB4-20 S ND 92 <br /> 24355 GAB SB4-31 S ND 94 <br /> 24356 GAB?B4 GW W ND 94 <br /> 24359 GAB SB5-20 S ND 93 <br /> 24360 GAB SB5-31 S ND 94 <br /> 24361 GAB SB5 6W- W ND 93 <br /> • 24363 GAB SB6-15 S ND 90 <br /> 24364 GAB SB6-20 S 4800 --# <br /> 24365 GAB S136-31 S ND 93 <br /> 24366 GAB ZB6GW- W ND 94 <br /> 24370 GAB SB7-20 S ND 91 <br /> 24371 GAB SB7-3I S ND 96 <br /> 24372 GAB SB7GW24 W ND 93 <br /> 24375 GAB SB8-20 S ND 94 <br /> Reporting Limit unless otherwise W 10 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 (C&M) are present, b) diesel range <br /> compounds (C10-C23)are present, c) oil-range compounds (>C18) are present, d)other patterned solvent (9) 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,t)liquid sample that contains greater than—5 vol %sediment <br />• <br /> DHS Certification No 1644 AAEdward Hamilton,Lab Director <br />