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110 2nd Avenue South 997 Pacheco CA 94553 5564 <br /> McCampbeil Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> httpJ/www mccampbell coin E-mail mam@rampbell com <br /> Advanced GeoEnviromnental, Inc Client Protect ID Comfort Air Date Sampled 10/10/02 <br /> 837 Shaw Road Date Received 10/11/02 <br /> Stockton,CA 95215 Client Contact Paul Dotson Date Extracted 10/11/02 <br /> =ent 0 Date Analyzed 10/12/02 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline* <br /> Extraction method SW503013 Analytical methods SW8015Cm Worts Order 0210228 <br /> Lab ID Client ID Matrix TPH(g) DF %SS <br /> 001A CPT-1-85 S 1 6,a <br /> I <br /> I <br /> I <br /> Reporting Limit for DF-1, W NA NA <br /> ND means not detected at or ---- - ---- - — -___ <br /> above the reporting limit I S 1 0 mg/Kg <br /> *water and vapor samples are reported in ug/L,soil and sludge samples in mg/kg,wipe samples in ug/wipe,and TCLP extracts in ug(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 signiftcant(aged gasohne9),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),f)one to a few isolated non-target peaks present g) <br /> strongly aged gasoline or diesel range compounds are significant,h)lighter than water immiscible sheen/product is present,i)liquid sample that contains <br /> greater than-2 vol %sediment,j)reporting limit raised due to high MTBE content,k)TPH pattern that does not appear to be derived from gasoline <br /> (aviation gas) m)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton, Lab Director <br />