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110 2nd Avenue South, #D7,Pacheco, CA 94553 <br /> McCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> Advanced GeoEmRronmental,Inc Client Protect ID Stockton Plating Date Sampled 09/18/96 <br />' 1803 West March Lane,Suite A Date Recentd 09/19/96 <br /> Stockton,CA 95207 Client Contact Bili Little Date Extracted 09/23-09/25/96 <br />' Client P O Date Analyzed 09/23-09/25/96 <br /> lGasoline Range(C&C12) Volatile Hydrocarbons as Gasoline*,,mth Methyl tent-Butyl Ether* &BTEX* <br /> EPA methods 5030 modified 8015 and 8020 or 602 California Rw' CB SF Bay Re ion method GCFID 5430 <br />' <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene zone Eihylben- Xylenes % Rec <br /> Surrogate <br />' 69202 MW3/9-18-96 W 700 c,a 21 140 086 39 22 106 <br /> 69203 MW4/9-18-96 W 60,d ND ND ND ND ND 105 <br /> 69204 V W 2/9-18-96 W 560 c a 25 41 15 59 14 93 <br /> 69205 Purge Water W ND 20 ND ND ND ND 103 <br /> 1 <br /> 1 <br /> Reporting Limit unless W 50 ug/L 50 0505 0 5 05 <br />' otherwise stated,ND <br /> means not detected <br /> aboNc the reporting limit S 10 mg/kg 005 0 005 0 005 0 005 0 005 <br />' *water and vapor samples are reported to ug/L,soil and sludge samples in mg/kg,and all TCLP extracts In mg/L <br /> 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 <br /> responsible for their interpretation a) unmodified or weaklymodified gasoline is siTsi ficant,b) heaviergasoline <br /> range compounds are significant(aged gasoline?),c)lighiergsoline rane compounds(the most mobile traction) <br /> are significant, d) asollne range compounds havrng broad chromatographic peaks are significant, biologically <br /> altered gasoline?, e� TPH pattern thaf does not appear to be derived from gasoline (?), f) one to a few isolated <br /> ' peaks present,g)strongly aged asol>ne or diesel range compounds are significant,h)lighter than water immiscible <br /> sheen is present,i) liquid samp�e that contains grea{er than-. 5 vol % sediment,l) no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />