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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 /> A4 1 Website www mccampbell com F mail main@rrtccampbell cam <br /> . Advanced GeoEnvironmental,Inc Client Project ID Three B's Date Sampled 06/16/04 <br /> 837 Shaw Road Date Received 06/17/04 <br /> Client Contact Tim Cuellar Date Extracted 06/19/04-06122104 <br /> Stockton, CA 95215 <br /> Client P]O Date Analyzed 06/19104-06122104 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> $xtraction method SW5030B Analytical methods SW8021B18015Cm Work Order 0406291 <br /> Lab F <br /> ient ID Matrix TPH(g) MTBE Benzene Toluene Ethylbenzenc Xylenes DF %SS <br /> 017W10A W 410,a 72 1 0 061 24 1 957 <br /> 018A MW10B W 58,a --- 3 0 ND ND ND 1 914 <br /> 019A M W 10C W 110,. -- 4 0 ND ND ND 1 978 <br /> I020A MW10D W ND --- 13 ND ND ND 1 105 <br /> 021A MW10E W ND --- ND ND ND ND 1 105 <br /> 022A MW10F W ND --- ND ND ND ND 1 104 <br /> I F <br /> I <br /> I Reporting Lanit for DF=1, W 50 50 05 0 5 05 05 1 µg/L <br /> ND means not detected at or <br /> above the reporting limit S NA NA NA NA NA NA 1 mg/Kg <br /> *water and vapor samples and all TCLP&SPLP extracts are reported in ug/L,soiVsludge/solid samples in mg/kg, wipe samples inµg(wipe, <br /> product/oil/non-aqueous liquid samples in mg/L <br /> #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 signtficant(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 gasolme47,e)TPH pattern that does not appear to be denved from gasoline(stoddard solvent/mineral spirit9),0 one to a few isolated non-target <br /> peaks present,g)strongly aged gasoline or diesel range compounds are significant,h)lighter than water immiscible sheen/product is present,t)liquid <br /> sample that contains greater than—1 vol %sediment,j)reporting limit raised due to high MTBE content k)TPH pattern that does not appear to be <br /> derived from gasoline(aviation gas) m)no recognizable pattern,n)TPH(g)range non-target isolated peaks subtracted out of the TPH(g)concentration at <br /> the client's r uest <br /> fDHS Certification No 1644 Angela Rydehus, Lab Manager <br />