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I 10 Second AVCnuC South,#D7, Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC Telephone o 10-798-1620 Fax 510-798-1622 <br /> lits ll++.� _ Aw n-iccamp-bell com E-mail main@mccampbell com <br /> Advanced GeoEnvironmental Client Project 1D Cherokee Tiuck Stop Date Sampled 12/15/97 <br /> 4005 North Wilson Way Date Received 12/17/97 <br /> Stockton, CA 95205 Client Contact Kevin McKibben Date Extracted 12/20/97 <br /> — 7Client P O l Date Analyzed 12/20/97 <br /> Gasoline Range(C6-C12) Volatile Hydrocarbons as Gasohne*,,,Nith NlethN 1 tell t-Butyl Ether* & BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,California RWQC B(SF Bav Region)method CSC FID(,)030) <br /> Lab ID Client ID Matnx TPH(g)} MTBE Beneene Toluene Eth e l en Xylenes %Recovery <br /> -zene Surrogate <br /> 84216 MW-2112-15-97 W ND ND ND ND ND ND 108 <br /> 84217 MW-3/12-15-97 W ND ND \D ND ND ND 107 <br /> 84218 MW-4112-15-97 W ND \D \D ND ND ND 106 <br /> 84219 MW-5112-15-97 W 250,f,c ND 69 ND ND ND 95 <br /> 54220 Large/12-15-97 W ND ND ND ND ND ND 91 <br /> 84221 Small/12-15-97 W ND ND \D ND ND ND III <br /> Reporting Limit unless W 50 ug/L 50 05 0 05 0 5 <br /> otherwise stated ND means <br /> not detected abo+e the S 1 0 0 05 1)005 1)005 0 005 0 005 <br /> ieporung limit mg/kg <br /> *water and vapor samples are reported in ug/L,wipe samples in a=h+ipe qui!Sid.nudge.ampler in ma/kg and all ICLP and SPLP extracts <br /> in ug/L <br /> 0 ciutteied chromatogram,sample peak coelutes with surrogate peak <br /> 'The tollowmg descnptions of the TPH chromatogram are cursory in natui4 and MLL wipbeli Analytical is not responsible for their <br /> interpretation a) unmodified or weakly modified gasoline is significant b) hea+ier gasoline iangc compounds are significant(aged <br /> gasoline9), c) lighter gasoline range compounds (the most mobile tiaoion) ale significant, d) gasoline iange compounds halving broad <br /> chromatographic peaks are significant,biologically altered gasoline." e)TPH pattern that docs not appear to be derived from gasoline(9) t) <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+o] I?%sediment j)no i Lcogniz.ibie paticm <br /> DHS Certification No 1644 /rJ Edward Hamilton, Lab Director <br /> a <br />