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f <br />' 110 Second Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCANDBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br />' httn.//www.rnzompbell com E-mail main@mccampbell com <br />' Advanced GeoEnvironmental Client Project ID #0142,Stockton Date Sampled 09/22/98 <br /> 4005 North Wilson Way Planing Date Received 09/24/98 <br />' Stockton,CA 95205 Client Contact Bill Little Date Extracted 09126-09127/98 <br /> Client P O Date Analyzed 09126-09/27/98 <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 Bay Region)method GCFID(5030) <br />' Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Et yyovery <br /> neg <br /> en- Xylenes o Burro ate <br /> 95718 MW-3/9-22-98 W 220,a ND<40 24 14 38 16 107 <br />' 95719 MW-4/ W 150,a ND<30 41 25 47 21 101 <br /> 9-22-98 <br /> 95720 MW-5/ W 240,a ND<30 39 22 49 21 101 <br />' 9-22-98 <br /> 95721 VW-1/ W 230,000,a,h ND<1000 36,000 58,000 4700 22,000 103 <br /> 9-22-98 <br /> 95722 VW <br /> 2-98 W 390,c,a ND<60 31 18 53 18 106 <br /> 95723 VW-3/ W 23,000,a ND<500 7200 370 1400 870 101 <br />_ 9-22-98 <br /> 95724 VW-4/ W 830,a 54 120 10 63 10 100 <br /> I• <br /> 1 <br />' Reporting Limit unless W 50 ug/L so 05 05 05 05 <br /> otherwise stated,ND <br /> means not detected <br />' above the reporting S 14 mg/kg 005 0 005 0 005 0 005 0 005 <br /> 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 />' m ugll. <br /> "cluttered chromatogram,sample peak coelutes with surrogate peak <br /> 'Me 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 /> gasolinel), c)lighter gasoline range compounds (the most mobile fraction) are significant, d) gasoline range compounds having broad <br /> chromatographic peaks are significant,biologically altered gasoline9,e)TPH pattern that does not appear to be derived from gasoline f) <br /> onre e to a few isolated peaks present,g)strongly aged gasoline or diesel range compounds asignificant,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 />