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I110 2nd Avenue South,#D7,Pacheco, CA 94553-5560 <br /> MCCAiMPBELL ANALYTICAL LNC Telephone 925-798-1620 Fax 925-798-1622 <br /> Ihtty//www mccampbe]I coin E-mail rriwn(a�rnccampbell corn <br />' Advanced GeoEnvironmental. Client Project ID Comfort Air Date Sampled. 02/12/2002 <br /> 837 Shaw Road Date Received. 02/15/2002 <br /> Stockton, CA 95215 Client Contact Paul Dotson Date Extracted 02/15-02/21/2002 <br /> ChentP O Date Analyzed 02/15-02121/2002 <br />' Gasoline Range(C6-Cl2) Volatile Hydrocarbons as Gasoline*,with-Methyl tert-Butyl Ether* &BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,California-RWQCS(SP Bay Region)method C,CFID(5030) <br /> I Lab ID Client ID Matrix TFH(g)+ MTBE Benzene Toluene Ethyl Xylenes %Recovery <br /> benzene Surrogate <br /> 90486 02120 21202 W 150,000,a ND<200 8600 25,000 3200 15,000 96 <br />' 90487 02 202 W 220,a NI D 63 5 3 33 3 4 --# <br /> 90488 MW3/ W 230,a ND 17 9 6 83 14 100 <br /> 021202 <br />' 90489 MW4/ W 95,a ND 99 0 67 47 052 L00 <br /> 021202 <br /> 90490 02 202 W ND ND ND 1 1 ND 15 104 <br /> i90491 02202 W 1500,a ND 110 21 42 14 ---° <br /> 90492 MW7/ W 58J ND ND ND ND ND 98 <br /> 021202 <br /> 90493 MW81 W 72,f ND ND ND ND ND 101 <br /> 021202 <br /> I <br /> Reporting Limo unless W 50 ug/L 5 0 03 0 5 0 5 05 <br /> otherwise stated ND <br /> means not detected above S 1 0 mg/k <br /> the reporting limit g 0 05 0 005 0 005 0 DOS 0 005 <br /> 1 -- I E <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 /> "cluttered chromatogram,sample peak coelutes with Surrogate peak <br /> "Fire following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not responsible for their <br /> interpretation a) anrnodified or weakly modified gasolene is significant, b) heavier gasoline range compounds are significant(aged <br /> I gasohne'i), c) lighter gasoline range compounds (the most mobile fraction) are significant, d) gasolene range compounds having broad <br /> chromatographic peaks are significant,biologically altered gasoline?,c)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 vol %sediment,l)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />