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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www mccampbell com E-mail main@mccampbell corn <br /> • <br /> Advanced GeoEnvironmental Client Protect ID Sierra Lumber Date Sampled 04/23/01 <br /> 837 Shaw Road Date Received 04/24/01 <br />' Stockton,CA 95215 Client Contact Tun Cuellar Date Extracted 04/24-04/25/01 <br /> Client P O Date Analyzed 04/24-04125/01 <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,Cahforma RWQCB(SF Bay Region)method GCFID(5030) <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethyl- Xylenes %Recovery <br />' benzene Surrogate <br /> 66033 042301/MW W 3500,a ND 260 2 0 210 200 103 <br /> 66034 0423 1/MW W 3100,a ND 5 6 27 110 290 103 <br /> 66035 042341A/MW W 42,000,a ND400 240 3400 1300 6200 96 <br />' 66036 04234$ W W 69,000,a ND<200 4700 11,000 2400 11,000 1.04 <br /> 66037 0423011/MW W 6I If ND ND 13 ND ND 105 <br /> I • <br /> I <br /> I ' <br />' Reporting Limit unless W 50 ug/L. 5 0 05 0 5 05 0 5 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limit S 1 0 mg/kg 0 05 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 all TCLP and SPLP extracts <br /> in ug/L <br /> "cluttered chromatogram,sample peak coelutes with surrogate peak <br />' -Me following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical as not responsible for their <br /> interpretation a) unmodified or weakly modified gasoline is significant, b) heavier gasoline range compounds are significant(aged <br /> gasolme9), 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(9),0 <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,,1)no recognizable pattern <br />' DHS Certification No 1644 Edward Hamilton, Lab Director <br /> I <br />