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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 /> htW://www.mccampbslLwm ell wm E-mail matn@mccampbell com <br /> Advanced GeoEnvtronmental Client Project ID Arca Mini Mart <br /> Date Sampled 10/27/99 <br /> 4005 North Wilson Way Date Received 10/28/99 <br /> Stockton, CA 95205 Client Contact Nuel Henderson Date Extracted 10/28/99 <br /> Client P O. Date Analyzed 10/29-11/02/99 <br /> IGasoline Range(C6-C12)Volatile Hydrocarbons as Gasohne*,with Methyl tent-Butyl Ether*&BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,California RWQCB(SF Bay Region)method GCFID(5030) <br /> I Lab ID Client ID Matrix %Recovery <br /> zene x TYH{g}+ MTBE Benzene Toluene Xylenes g <br /> Surro ate <br /> 24257 MW3 W ND 15 ND ND ND ND 93 <br /> 24258 MW2 W ND 1 I ND ND ND 23 96 <br /> 24259 MW I W ND ND ND 060 070 32 99 <br /> 24260 MW7 W ND 12 ND ND ND ND 100 <br /> 2426I MW6 W ND 46 ND I1 ND ND 97 <br /> I24262 MW4 W 37,000,b ND<l10 65 130 1800 7300 96 <br /> 24263 MW5 W 55,000,a 500 1500 4900 3800 17,000 95 <br /> 24264 VWI W 240,a 330 5 8 19 11 35 97 <br /> I <br /> I <br /> I Reporting Limit unless <br /> otherwl Elated,ND W 50 ug/L 5 0 05 05 05 05 <br /> means not detected <br /> above the reporting S 1 0 mg/kg 005 0 005 0 005 0 005 0 005 <br /> limit <br /> •water and vapor samples are reported to 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 /> I "cluttered chromatogram,sample peak coelutes with surrogate peak <br /> 'The 4'bbiiot^^g desc^p*ons or*he TPu chro+r tog-,r a_ .,o;, - ^a a-d *"cCa—pbeil "^ah-1 r^t espons.ble f r *&e- <br /> interpretation a) unmodified or weakly modified gasoline is significant, b) heavier gasoline range compounds are significant(aged <br /> gasolineg), 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(1),Q <br /> one to a few isolated peaks present,g)strongly agea gasoline or diesel range compounds are significant,h)lighter than water immiscible <br /> sheen n present,t)liquid sample that contains greater than--5 vol %sediment,j)no recognizable pattern <br /> I <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br /> r <br />