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110 2nd Avenue South,#137,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http l/www mccampbell corn E-mail main@mccampbell com <br /> • Advanced GeoEnvironmental Client Project ID Three B's Date Sampled 06/13/01 <br /> 837 Shaw Road Date Received 06/14/01 <br /> IStockton,CA 95215 Client Contact Tun Cuellar Date Extracted 06/14-06/15/01 <br /> [Client P O Date Analyzed 06/14-06/15101 <br /> I Gasoline Range (C6-C12)Volatile Hydrocarbons as Gasoline*,with Methyl tent-Butyl Ether* &BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,California RWQC3(SF Bay Region)method GCFID(5030) <br /> FL7abD Client ID Matnx TPH(g)� MTBE Benzene Toluene Ethyl- Xylenes %Recovery <br />' benzene Surrogate <br /> 69745 MW1/061301 W 2400,a ND<30 700 23 29 70 110 <br />' 69746 MW2/06I301 W 1900,a ND<15 530 30 15 49 107 <br /> 67947 MW3/061301 W 13,000,a ND<50 2400 260 230 720 110 <br /> 69748 MW4/061301 W ND 63 ND ND ND ND 107 <br /> 69749 MW5/061301 W 130,c ND 19 093 ND ND ---# <br />' 69750 MW6/061301 W 15,000,a ND<600 3400 83 150 120 111 <br /> 10 <br /> 1 <br />' Reporting Limit unless W 50 ug/L 50 0 5 05 05 05 <br /> otherwise stated,ND <br /> means not detected above S 1 0 mg/k <br /> the reporting limit g 005 0 005 0 005 0 005 0 005 <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 SDLP extracts <br /> in ug/L <br /> 0 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'7), c) lighter gasoline range compounds (the most mobile fraction) are significant, d) gasoline range compounds having broad <br />' chromatographic peaks ,.,significant,biologically altered gasoline?,e)TPH pattern that does not appear to be derived from gasoline(1),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,r)liquid sample that contains greater than�5 vol %sediment,f)no recognizable pattern <br />' DHS Certification No 1644 !v� Edward Hamilton,Lab Director <br />