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1 <br /> 110 2nd Avenue South #D7 Pacheco CA 94553 5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> ' bttpJ/www mcampbell com E mail min@rncc2MbeJl corn <br /> Advanced GeoEnvironmental,Inc Client Project ID Ripon Farm Sery Date Sampled 11/21/02 <br /> ' 837 Shaw Road Date Received 11/22/02 <br /> Stockton, CA 95215 Client Contact Bill Little Date Extracted 11/22/02-11/23/02 <br /> Client P O Date Analyzed 11/22/02-11/23/02 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method SW5030B Analytical methods SW8021R(8015Cm Work Order 0211395 <br /> Lab ID Client dD Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 001A Influent A 77,a ND ND 031 ND 0 90 I 1 108 <br /> 002A Effluent A 43,a ND ND ND _ND ND 1 110 <br /> 1 <br /> Reporting Lint for DF=1 A 25 25 025 025 0 25 025 1 µg/L <br />' NDmeans not detected at or <br /> above the reporting lura S NA NA NA NA NA NA 1 MW <br /> *water and vapor samples are reported toµg/L,soil and sludge samples in mg/kg,wipe samples in gg/wipe,and TCLP extracts inµg/L <br />' #cluttered chromatogram,sample peak coelutes with surrogate peak <br /> +The following descnptions 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",c)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,l)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 <br />' Edward Hamilton, Lab Director <br />