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McCAMPBELL ANALYTICAL INC 110 2nd Avenue South, #D7,Pacheco, CA 94553 <br /> Tele 510-798-1620 Fax 510-798-1622 <br />' Advanced GeoEmironmental,Inc Client Project 1D Grant Line Gas Food Date Sampled 09/12/96 <br /> 1803 West March Lane, Suite A Date Received 09/13/96 <br />' Stockton,CA 95207 Client Contact Bill Little Date Extracted 09/15-09/20/96 <br /> Client P O Date Analyzed 09/15-09/20/96 <br />' Gasoline Range(C6-C12) Volatile Hldrocarbons as Gasoline*,mth Methal tert-Butyl Ether* &BTEX* <br /> EPA methods 5030 modified 8015 and 8020 or 602 California R W CS SF Ba-*Region)method GCF113 5030 <br /> + Benzene Eth ylben % Rec <br /> Lab ID Client ID Matrix TPH(g) MTBE Toluene -zone Xylenes Surrogat <br />' e <br /> 69020 MW I/09-12-96 W 85 a 320 23 ND 073 29 108 <br />' 69021 MW2/09-12-96 W 67 a ND 43 ND 20 3 3 104 <br /> 69022 MW3/09-12-96 W ND ND ND ND ND ND 95 <br />' 69023 MW4/09-12-96 W 110 d,h 1700 064 ND 23 is 102 <br /> 69024 MW5/09-12-96 W 1200 g/j,h ND 60 47 12 70 110# <br />' 69025 MW6/09-12-96 W ND ND ND ND ND ND 101 <br /> 1 <br />' Reporting Limit unless other- W 50 ug/L 50 05 05 05 05 <br /> wise stated,ND means not de- <br /> tected above the reporting limit S 10 mg/kg 005 0 005 0 005 0 005 0 005 <br />' *«ater and vapor samples are reported in ug/L,sail and sludge samples in mg/kg,and all TCLP extracts in mg/L <br /> -cluttered chromatogram, sample peak coelutes Avith surrogate peak <br />' + The following descriptions of the TPH chromatogram are cursorryy in nature and McCampbell Analylical is not <br /> responsible for their interpretation a) unmodified or weakly modfed gasoline is significant,b) heavier gasoline <br /> range compounds are significant(aged gasolme9),c)lighter gasoline range compounds(the most mobile fraction) <br /> are significant, d) asolme range compounds having broadchromatofraphic peaks are significant, biological] <br /> y <br /> altered gasoline?,e� TPH pattern tha does not appear to be derived From gasoline (?),f) one to a few isolated <br /> peaks present,g)strong/gaged jasolme or diesel range compounds are significant,h)lighter than water immiscible <br /> sheen is present,t) liquid sampe that contains greater than— 5 vol % sediment,j) no recognizable pattern <br />' DHS Certification No 1644 Edward Hamilton,Lab Director <br />