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110 2nd Avenue South,ffD7,Pacheco,CA 94553 5560 <br /> 4 1 McCampbell Analyfleal, Inc. Telephone 925-798-1620 Fax 925-799-1622 <br /> Website www mccampbell corn lrmael mam@ruce.an4bell com <br /> Advanced GeoEnvironmental, Inc Client Project ID Flag City Chevron Date Sampled 06/14104 <br /> 837 Shaw Road Date Received 06/15/04 <br /> Client Contact Tim Cuellar Date Extracted 06/15/04 <br /> Stockton,CA 95215 <br /> Client P O Date Analyzed 06/16/04-06/19/04 <br /> Gasoline Range(C&C12)Volatile Hydrocarbons as Gasoline with MTBE* <br /> tract,on mediad_ SW503013 Analytical methods SW8021B/8015Cm Work Order 0406242 <br /> Lab DClient ID Matrix TPH(g) MTBE DF %SS <br /> 0406242-017A MW5 W ND ND 1 937 <br /> 0406242-019A MW <br /> W ND NO 1 947 <br /> 0406242-019A MWSA W ND 570 i 949 <br /> 0406242-020A L—r-8B <br /> W j NA ND 1 846 <br /> 0406242-02iA NSWBC W ll ND ND 1 867 <br /> 0406242-022A MW14 I W ND 8 1 II 1 873 <br /> 0406242-023A MW 15 + W ND 51 ! 1 861 <br /> 0406242-024A E MW16 W ND,i 53 IIII El 843 <br /> 0406242-025A MW17 W ND,i 87 108 <br /> 0406242-026A MW18 W ND 130 1 107 <br /> 0406242-027A MW19A W 63,f,r 4800 1 108 <br /> 0406242-029A MW 19B W ND,i 95 1 104 <br /> 0406242-029A EWA W ND NO 1 105 <br /> a <br /> 0406247: 30A F-W-2 W ND NO } 1 982 <br /> 0406242-031A i EW-3 W ND NO 1 104 <br /> 0406242-032A 8W-4 W ND 11 f 1 979 <br /> Reporting Limit for DF=1, W 50 50 µti <br /> ND means not detected at or <br /> above the reporting limit S NA NA mg/Kg <br /> *water and vapor samples and all TCLP&SPLP extracts arc reported in ug(L,soil/sludgelsolid samples in mg/kg, wipe samples in Ag/Wipe, <br /> product/oil/non-aqueous liquid samples in mg/L <br /> #cluttered chromatagram,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 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 gasoline?,e)TPH pattern that does not appear to be derived from gasoline(stoddard solvent/mineral spent?),f)one to a few isolated non-target <br /> peaks present,g)strongly aged gasoline or diesel range compounds are signrfiearit,h)lighter than water immiscible sheen/product is present,i)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-Sarget isolated peaks subtracted out of the TPH(g)concentration <br /> �t thy.M­t'.+ , * <br /> DHS Certification No 1644 Angela Rydelius, Lab Manager <br />