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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//www mec bell com E mail ma c bell com <br /> Advanced GeoEnvironmental, Inc Client Project ID Fire Station#2 Date Sampled 04/23/03 <br /> 837 Shaw Road Date Received 04/24/03 <br /> IStockton,CA 95215 Client Contact Bill Little Date Extracted 04/24/03-04/28/03 <br /> I Client P O Date Analyzed 04/24/03-04128/03 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method SW503013 Analytical methods SW802113/8015Cm Work Order 0304378 <br /> Lab ID Client 1A Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 001A M W l W 87,f __ ND 12 ND ND 1 102 <br /> I002A MW3 W ND _ ND ND ND ND 1 98 8 <br /> 003A I MW5 W ND ND ND ND ND 1 97 6 <br /> I004A VW1 W ND _ ND 069 ND ND 1 103 <br /> 005A VW2d W 5000,a __ 590 16 29 140 10 1 105 <br /> I <br /> 006A VW5d W ND ND ND ND ND 1 103 <br /> i <br /> I <br /> I • <br /> I <br /> I <br /> I <br /> Reporting Lmnt for DF=1, W so 50 0 5 05 05 0 5 1 µg(L <br /> ND means not defected at or <br /> Iabove the reporting hunt S NA NA NA NA NA NA 1 rrlg/Kg <br /> *water and vapor samples are reported in pg/L,soil and sludge samples in mg/kg,wipe samples in jig(wipe,and TCLP extracts in pg/L <br /> I #cluttered chromatogram,sample peak coelutcs with surrogate peak <br /> +ne 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 gasoline9),c)lighter gasoline range <br /> I compounds(the most mobile fraction)are significant,d)gasoline range compounds having broad chromatographic peaks are significant,biologically <br /> altered gasolmel e)TPH pattern that does not appear to be derived from gasoline(stoddard solvent/mineral spirit?),f)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,i)liquid <br /> sample that contains greater than—2 vol %sediment,j)reporting limit raised due to high MTBE content,k)TPH pattern that does not appear to be <br /> denved from gasoline(aviation gas) m)no recognizable pattern <br /> DHS Certification No 1644 Angela Rydelius,Lab Manager <br /> I <br />