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{ <br /> • I 10 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> htt //www mecam bell corn E-mail main@mccampbell com <br /> Advanced GeoEnvironmental Client Project ID 1901 South El Dorado Date Sampled 04/20/00 <br /> 4005 North Wilson Way Date Received 04/21/00 <br /> Stockton, CA 95205 Client Contact Bill Little Date Extracted 04/21/00 <br /> Client P O Date Analyzed 04121-04/28/00 <br /> Gasoline Range (C&C12)Volatile Hydrocarbons as Gasoline*, Aith Methyl tert-Butyl Ether* & BTEX* <br /> BPA methods 5030,modified 801 5,and 8020 or 602 California RWQCB(SF Bay Region)method GCF1D(5030) <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes % Recovery <br /> zene Surrogate <br /> 36194 TFN-17' S 5600,b,1 81 15 76 91 880 117 <br /> 36195 TFS-17' S 1700,b ND<2 0 ND<O 10 48 13 120 101 <br /> 36196 NN-16' S 12001b ND<l 0 ND<O 05 1 6 3 6 51 99 <br /> 36197 SS-16' S 2 l,b ND ND 0 030 0 027 026 104 <br /> 36198 WN-16' S 87001b ND<5 0 ND<O 30 76 85 740 99 <br /> 36199 WS-16' S ND ND ND ND ND 0 051 102 <br /> 36200 EN_16' S 12,000,b,I ND<15 13 150 58 1800 100 <br /> 36201 ES-16' S 7 9,b 014 ND<0 01 027 0 066 2 1 98 <br /> 36202 __KP CS 1400,b ND<2 0 ND<O 10 68 13 130 92 <br /> A-C <br /> 36203 SP CX1r2- S 880,b ND<2 0 ND<O 10 2 4 4 2 <br /> A-C 53 93 <br /> Reporting Limit unless W 50 ug/L 50 0 5 0 5 0 5 05 <br /> Otherwise stated ND <br /> means not detected abot e <br /> the reporting limit S 1 0 mg/kg 005 0 005 0 005 0 005 0 005 <br /> *water and vapor samples are reported in ug/L,wipe samples in ug/,A ipe soil and sludge samples in mg/kg,and all TCLP and SPLP extracts <br /> 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 <br /> interpretation a) unmodified or weakly modified gasoline is significant, b) heavier gasoline range compounds are sigmficant(aged <br /> gasohne') c) lighter gasoline range compounds (the most mobile fraction)are significant, d) gasoline range compounds having broad <br /> • chromatographic peaks are significant,biologically altered gasoline',e)TPH pattern that does not appear to be derived from gasoline(') f) <br /> one to a few isoleted peaks present,g)strongly aged gasoline or diesel range compounds are significant h)lighter than water immiscible <br /> sheen rs present,i;Lgwd sample that contains greater iha�—5 wl %sediment j)no recognizable pattern <br /> DHS Certification No 1644 *Edward Hamilton, Lab Director <br />