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McCAMPBELL ANALYTICAL INC 110 2nd Avenue South,#D7,Pacheco,CA 94553 <br /> Tele 510-798-1620 Faic 510-798-1622 <br /> Parker Environmental Services Client Project ID Cheaper ! #37,Tracy Date Sampled 09/01/95 <br /> 190 East 7th Street Date Received 09/01/95 <br /> Pittsburg, CA 94565 Client Contact Greg Gouvea Date Extracted 09/01-09/08/95 <br /> Client P O Date Analyzed 09102-09/09/95 <br /> Gasoline Range(C6-C12) Volatile Hydrocarbons as Gasoline*,with BTEX* <br /> EPA methods 5030 modified 8015 and 8020 or 602 California RW CB SF Bay Re on method GCI:ID 5030 <br /> Lab ID Client ID Matrix TPH(g)+ Benzene Toluene Ethylibe eC <br /> n- Xylenes Surrogate <br /> 55975 MW-5,6' S 76,b,d ND< 001 0 042 027 077 94 <br /> 55976 MW-6,6 5' S ND ND ND ND ND 102 <br /> 55977 MW-6, 15' S ND ND ND ND ND 104 <br /> 55978 MW-7,6' S ND ND ND ND ND 108 <br /> Reporting Limit unless other- W 50 ug/L 05 05 05 05 <br /> wise stated,ND means not de- <br /> tected above the reporting limit S 10 mg/kg 0 005 0 005 0 005 0 005 <br /> *water and vapor samples are reported in ug/L,sod samples in ng/kg,and all TCLP eidracts 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 McCanipbell Analytical is not <br /> responsible for their interpretation a)unmodified or weakly int dified gasoline is si icant,b) heavier gasoline <br /> range compounds are si�cant(aged gasoline?),c)h tergasolme range compounds(the most mobile faction) <br /> are significant, d) solme range compounds havingerloadchromatopraphic peaks are significant, biologically <br /> altered gasoline?,eCTTPH pattern that does not appear to be derived from gasoline (?),f) one to a few isolated <br /> peaks p resent,g)strong/yy aged gasoline or diesel ranfe compoun( s are significant,h)lighter than water immiscible <br /> sheen is present,i) hquid sample that contains Brea er than 5 vol % sediment,j) no recognizable pattern <br /> • <br /> DHS Certification No 1644 �'� Edward Hamilton,Lab Director <br />