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1 <br /> 1]0 and Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> 24http//www mccam�bell corn E-mail main@mccampbell corn <br /> • <br /> Date Sampled 11/06/2000 <br /> 4005 North Wilson Way <br /> Advanced GeoEnvrronmental Client Project ID Guardzno- <br /> Monitoring Well Installation Date Received 11/09/2000 <br /> Stockton, CA 95205 Client Contact Bill Little Date Extracted 11/09/2000 <br /> Client P O Date Analyzed 11/09/2000 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with Methyl tert-Butyl Ether*&BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,California RWQCB(SF Say Region)method GCF1D(5030) <br /> Lab 1D Client 1D Matrix TFH(g)+ MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 52545 MW5-15 S ND NDND ND ND ND 98 <br /> 52546 MW5-20 S ND ND ND ND ND ND 98 <br /> 52547 MW5-25 S ND ND ND ND ND ND 105 <br /> 52548 MW6-15 S ND ND ND ND ND ND 111 <br /> 52549 MW6-20 S ND ND ND ND ND ND 101 <br /> 52550 MW6-25 S ND ND ND ND ND ND 105 <br /> lie <br /> 1 <br /> 1 <br /> 1 <br /> Reporting Limit unless W 50 ug/h 50 05 05 05 05 <br /> otherwise stated,ND <br /> means not detected above S 1 0 mg/kg 0 05 0 005 0 005 0 005 0 005 <br /> the reporting limit <br /> " water and vapor samples are reported in ug/L,wipe samples in ug/wipe,soil and sludge samples in mg/kg,and all TCLP and SPLP extracts <br /> in ug/L <br /> N cluttered chromatogram,sample peak coelutes with surrogate peals <br /> 'The following descriptions of the TPH chromatogram are cursory to nature and McCampbell Anaiytical is not responsible for their <br /> interpretation a) unmodified or weakly modified gasoline is significant, b) heavier gasoline range compounds are signifrcant(aged <br /> gasoline')) c) lighter gasoline range compounds (the most mobile fracnon) are significant, d) gasoline range compounds having broad <br /> chromatographic peaks are significant,biologically altered gasohne),e)TPH pattern that does not appear to be derived from gasoline("),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 vol %sediment,j)no recognizable pattern <br /> 1 <br /> DHS Certification No 1644 _Edward Hamilton,Lab Director <br /> 1 <br />