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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www mccampbell cam E-mail main@mccampbell corn <br />' Advanced GeoEnvironmental Client Project ID Fire Station#2 Date Sampled 11/05/01 <br /> 837 Shaw Road Date Received 11/06/01 <br />' Stockton,CA 95215 Client Contact Bill Little Date Extracted 11/06/01 <br /> Chent P O Date Analyzed 11/06/01 <br />' Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasohne*,with Methyl tert-Butyl Ether* &BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,California RWQCB(SF Bay Region)method GCFID(5030) <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethyl- Xylenes %Recovery <br />' benzene Surrogate <br /> 82741 Influent Air 1400,bd ND 064 12 41 240 -- <br />' 82742 Effluent Air ND ND ND ND ND ND 103 <br /> 1 <br /> 1 <br /> 1 <br />' Reporting Limit unless Air 50 ug/L 5 0 05 05 05 05 <br /> otherwise stated,ND <br /> means not detected above S 1 0 mg/kg 005 0 005 0 005 0 005 0 005 <br /> the reporting limit <br /> *water and air samples air reported in ug/L,wipe samples in ug/wipe,soil and sludge samples in mg/kg,and all TCLP and SPLP extracts in <br /> ug/L <br /> cluttered chromatogram sample peak coelutes with surrogate peals <br /> `The following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not responsible for their <br /> interpretation a) unmodified or weakly modified gasoline is significant, b) heavier gasoline range compounds are significant(aged <br /> gasoline?), c) lighter gasoline range compounds (the most mobile fraction) are significant, d) gasoline range compounds having broad <br /> chromatographic peaks are significant biologically altered gasolinev,e)TPH pattern that does not appear to be derived from gasoline(9),f) <br /> • one to a few isolated peaks present, g)strongly aged gasoline or diesel range compounds are significant,h)lighter than water immiscible <br /> sheen is present,i)liquid sample that contains greater than�5 vo! %sediment,j)no recognizable pattern <br />' DHS Certification No 1644 JkkEdward Hamilton,Lab Director <br />