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I <br /> � 110 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc I Telephone 925 798-1620 Fax 925-798-1622 <br /> http l/www mccampb61 cum E-mail n=n@mccampbell com <br /> Advanced GeoEnvironmental, Inc Client Project ID GW Extraction-Samples Date Sampled 06/05/02 <br /> 837 Shaw Road Date Received 06/07/02 <br /> Stockton,CA 95215 Client Contact Bill Little Date Extracted 06/11/02 <br /> Client P O Date Analyzed 06/11/02 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method SW5030B Analytical methods SW8021818015Cm Work Order 0206099 <br /> Lab 1D Client ID Matrix TPH(g} MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 001 A lnfluent W 5600 a 360 320 89 230 1200 10 104 <br /> 002A I Effluent W ND ND ND ND ND ND 1 104 <br /> I € I <br /> I i I I <br /> F <br /> i <br /> I <br /> � i I <br /> I I <br /> a I <br /> I <br /> € � I <br /> I ' <br /> I I <br /> i <br /> i <br /> Reporting Limit for DF—1, W 50 5 0 I 0 5 05 05 05 ug/L <br /> I ND means not detected at or <br /> above the reporting limit S 1 0 005 I 0 005 I 0 005 0 005 i 0 005 mg/Kg <br /> F <br /> 7dlbo. <br /> por samples are reported in ug/L,soil and sludge samples in mg/kg,wipe samples in uglwipe,and TCLP extracts m ug(L <br /> factor <br /> 4 cluttered chromatogram sample peak coelutes with surrogate peak <br /> I +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 significant(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 gasoliner),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,j)no recognizable pattern,k)TPH pattern that does not appear to be derived from gasoline(aviation gas) <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />