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110 2nd Avenue South 9D7,Pacheco CA 94553-5560 <br /> F47 <br /> McCampbelI Analytical Inc Telephone 925 7991620 Fax 925-798-1622 <br />' b 1/www mccampbc[I com E mail mato mccampbetl cam <br /> • Advanced GeoEnvironmental, Inc Client Project ID Ripon Farm Sery Date Sampled 07/17/02 <br />' 837 Shaw Road Date Received 07/18/02 <br /> Stockton,CA 95215 Client Contact Bill Little Date Extracted 07/18/02-07/19/02 <br />' Client P 0 Date Analyzed 07/18/02-07/19/02 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method SW5030B Analytical methods SW8021B/8015Cm r Work Or 0207237 <br /> Lab ID Client ID Matrix TPH(g) MTBE Benzene Toluene !thylbenzene Xylenes DF %SS <br /> i <br /> 001A Influent A 38,m ND ND D 41 ND I 027 0 5 112 <br /> 002A Effluent A 190,m ND i ND 072 014 I 1 0 05 ---11 <br /> Reporting Limit for DF=1 A 50 50 05 05 05 05 ug/L <br /> ' means not detected i t or <br /> above the reporting Irmrt S 10 I 005 0 005 0 005 0 005 0 005 i mg/Kg <br /> ab <br /> *water and vapor samples are reported 1n ug/L,sod and sludge samples in mg/kg wipe samples in ug/wipe,and TCLP extracts 1n uglL <br /> 4 cluttered chromatogram sample peak coelutes with surrogate peak <br /> +The following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not responsible for their interpretation a) <br /> unmodified or weakly modified gasoline is significant,b)heavier gasoline range compounds are signiScant(aged gasoline?) c)lighter gasoline range <br /> compounds(the most mobile fraction)are significant,d)gasoline range compounds having broad chromatographic peaks are significant,biologically <br /> altered gasoline?,e)TPH pattern that does not appear to be derived from gasoline(stoddard solvent) 0 one to a few isolated non-target peaks present, <br /> g)strongly aged gasoline or diesel range compounds are significant h)lighter than water immiscible sheen/product is present 1)liquid sample that <br /> contains greater than—2 vol %sediment,j)sample diluted due to high MTBE content,k)TPH pattern that do-s not appear to be derived from gasoline <br />' (aviation gas) m)no recognizable pattern <br />' DHS Certification No 1644 Edward Hamilton, Lab Director <br />