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I 110 2nd Avenue 7 ve ua Sfuih S) Pacheco,CA 94553 5560 McCampbell Analytical Inc Telephone 925-798-1520 Fax 925 798-1622 I httpllwww mccampbell com E mail maumgmccampbell com Advanced GeoEnvironmental,Inc Client Project ID MBP/Linden Date Sampled 07/12/02 837 Shaw Road Date Received 07/16/02 Client Contact Bili Little Date Extracted 07/17/02-07/18/02 Stockton,CA 952I5 Client P O Date Analyzed 07/17/02-07/18/02 Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline* Extraction method SW5030B Analytical methods SW80219/8015Cm Work Order 0207202 iLab fl) Client ID Matrix TPH(g) DF 0 SS 001A MWI/07-12-02 W ND 1 101 002A MW2/07-12-02 W ND I 1 101 003A MW3/07-12-02 W ND 1 112 T-- Reporting Limit fnr DF=1, W 50 µg/L ' ND means not detected at or ---- -- - above the reporting limit S NA i NA *water and vapor samples are reported in ug/L,soil and sludge samples in mg/kg,wipe samples in ug/wipe,and- LP extracts in ugJL ' #cluttered chromatogram,sample peak coclutes with surrogate peak +The following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not responsible for their interpretation a) unmodified or weakly modified gasoline is significant,b)heavier gasoline range compounds are significant(aged gasoline),c)lighter gasoline range ' compounds(the most mobile fraction)are significant,d)gasoline range compounds having broad chromatographic peaks are significant,biologically altered gasoline9,e)TPH pattern that does not appear to be denved from gasoline(stoddard solvent),f)one to a few isolated non-target peaks present,g) strongly aged gasoline or diesel range compounds are significant h)lighter than water immiscible sheeniproduct is present,t)liquid sample that contains greater than--2 vol %sediment j)sample diluted due to high MTBE content,k)TPH pattern that does not appear to be derived from gasoline(aviation ' gas) m)no recognizable pattern DHS Certification No 1644 _ _ Edward Hamilton, Lab Director I I