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I 10 2nd Avenue South,#D7 Pacheco CA 94553 5560 <br /> [4 McCampbell Analytical Inc Telephone 925-798-1620 Fax 925 798-1622 <br /> h //www mecanipbell corn E mail nnm mceampbell corn <br /> Advanced GeoEnvironlnental, Inc Client Project ID Chapin Bros Date Sampled 02/17/03 <br /> Investments <br /> 837 Shaw Road Date Received 02/18/03 <br /> Client Contact Bill Little Date Extracted 02/19/03-02/20/03 <br /> Stockton,CA 95215 <br /> ' Client P O Date Analyzed 02119103-02/20/03 <br /> Gasoline Range(C6-C12) Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method SW5030B Analytical methods SW802113l8015Cm Worts Order 0302222 <br /> Lab 177 Client ID Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> OOIA Effluent W ND ND ND ND ND ND 1 909 <br /> ' 002A VW6 W 13,000,a ND<50 100 87 530 1400 10 ---# <br /> 003A EW] W 7700,a ND<25 48 91 320 460 5 116 <br /> ' 004A EW2 W 6100,a ND<50 210 18 140 180 10 --- <br /> 005A EW3 W 11,000,a ND<50 340 70 310 1100 10 —# <br /> I <br /> i <br /> i <br /> i <br /> I <br /> Reporting Unit for DF=1, W I $0 5 0 05 05 05 05 1 L <br /> ' ND means not detected at or �� <br /> above the reporting Isiiut S NA NA NA NA NA NA 1 mg/Kg <br /> 'water and vapor samples are reported in pg/L,sasf and sludge samples in mg/kg wipe samples in jig/wipe,and TCLP extracts in pg/L <br /> ' #cluttered chromatogram,sample peak coclutes 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 slgnifrcant(aged gasohne9),c)lighter gasoline range <br /> ' compounds(the most mobile fraction)are significant,d)gasoline range compounds having broad chmmatognphir peiks are significant biologically <br /> altered gasoline",e)TPH pattern that does not appear to be denved 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,t)liquid <br /> sample that contains greater than--2 vol %sediment,,/)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 <br /> DHS Certification No 1644 � K Angela Rydelius, Lab Manager <br />