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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 /> A# http//www mccampbell com E mail mam@mccamphetl com <br /> ' Advanced GeoEnvironmentai,Inc Client Project ID Ripon Farm Sery Date Sampled 09/19/02 <br /> 837 Shaw Road Date Received 09/20/02 <br /> ' Stockton,CA 95215 Client Contact Bill Little Date Extracted 09/23102-09125102 <br /> Client P O Date Analyzed 09123102-09125102 <br /> ' Gasoline Range(C6-02) Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method SW5030B Analytical methods SW802113l8015Cm Work Order- 0209323 <br /> ' Lab 1D Client 1D Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 003A II MW1/19-19-02 W 340,a,i 1 4 075 0 53 0 83 1 # <br /> ' 004A MW2/09-19-02 W 1700,a,h — 47 51 96 51 10 -# <br /> s <br /> 005A MW3/09-19-02 W 510,b -- 0 86 069 093 1 6 1 119 <br /> ' 006A MW4109-19-02 W 370,a -- 16 096 089 089 1 ---# <br /> i <br /> 007A MW5/09-19-02 W ND --- ND ND I ND ND 1 962 <br /> 1 <br /> i <br /> Reporting Limit for DF=1 W 50 50 05 05 05 05 1 pg/L <br /> ND means not detected at or <br /> ' above the reporting hmit S NA NA NA NA I NA NA 1 mg/Kg <br /> *water and vapor samples are reported in ugfl,soil and sludge samples in mg/kg,wipe samples in ug/wipe,productloil/non-aqueous liquid samples in <br /> mg/L,and TCLP extracts in ug/L <br /> ' #cluttered chromatogram,sample peak coelutes with surrogate peak <br /> +The following descriptions of the TPH chromatogram are cursory in naturd and McCattipbell Analytical is not responsible for their interpretation a) <br /> ' unmodified or weakly modified gasoline is significant,b)heavier gasoline range compounds are significant(aged gasolinee),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),f)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,i)liquid sample that <br /> contains greater than—2 vol %sediment,l)reporting limit raised due to high MTBE content,k)TPH pattern that does not appear to be derived from <br /> ' gasoline(aviation gas) m)no recognizable pattern <br /> DHS Certification No 1644 <br /> Edward Hamilton,Lab Director <br />