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' 110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> MICA OBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> 64hnp I/www mcca ell,com E-mail matn@mccampbell com <br /> Advanced GeoEnvironmental Client Project ID Chase-Madison Date Sampled 05/04/99 <br /> 4005 North Wilson Way Date Received 05/07/99 <br /> ' Stockton,CA 95205 Client Contact Kevin McKibben Date Extracted 05/08-05/13199 <br /> Client P O Date Analyzed 05/08-05/13/99 <br /> ' Gasoline Range(C6-02)Volatile Hydrocarbons as Gasoline*,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 Eth en en- Xylenes %Recovery ze Surrogate <br /> 10559 MW1/54-99 W 350,a ND 19 54 14 65 103 <br /> ' 10560 MW2/54-99 W 63,a ND 12 47 1 5 71 105 <br /> 10561 MW4/5 4-99 W 250,a ND 23 45 80 38 104 <br /> ' 10562 MW 13/5-4-99 W ND ND 058 23 ND 3 9 101 <br /> 10563 MW 19A/5-4-99 W ND ND ND 1 5 ND 1 9 102 <br /> ' 10564 MW 19B/5-4-99 W ND ND 1 2 46 15 68 105 <br /> 10565 MW20A/5-4-99 W ND ND ND 13 ND 18 106 <br /> t10566 MW20B/54-99 W 140,a ND 65 21 5 3 25 103 <br /> ' 10567 MW21A/54-99 W 5200,e,h ND 170 3 0 140 31 104 <br /> 10568 MW21B/5-4-99 W 1300,e ND 86 17 29 28 101 <br /> 1 <br /> ' Reporting Limit unless W 50 ug/L 50 05 05 05 05 <br /> otherwise stated.ND means <br /> not detected above the' <br /> reporting ltinit S I 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/wipe,sod and sludge samples in mg/kg,and al]TCLP and SPLP extracts <br /> to 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 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 gasoline,, e) TPH pattern that does not appear to be derived from gasoline <br /> (stoddard solvent9) f)one to a few isolated peaks present,g)strongly aged gasoline or diesel range compounds are significant,h)lighter <br /> than water immiscible sheen is present,i)liquid sample that contains greater than—5 vol %sediment,))no recognizable pattern <br /> ' DHS Certification No 1644 N Edward Hamilton,Lab Director <br /> 1 <br />