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I s • <br /> 110 2nd Avenue South, #D7,Pacheco,CA 94553 <br /> McCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br />' Geological Audit Services Client Protect ID City Of Stockton- Date Sampled 07/13/94 <br /> 1803 West March Lane, Ste A Wastewater Treatment Plant <br /> Date Received 07/14/94 <br />' Stockton,CA 95207 Client Contact Keen McKibben Date Extracted 07/14/94 <br /> Client P O Date Analyzed 07/14/94 <br /> Gasoline Range(C6-C12) Volatile H)drocarbons as Gasoline*,mittb BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,California RW CB SF Bay Region)method GCFID 5030 <br /> Lab ID Client ID Matrix TPH(g)+ Benzene Toluene Ethylben- Xylenes % Rec <br /> zene Surrogate <br /> 36634 B-1 S ND ND ND ND ND 106 <br /> 36635 W-1 S 520,b d 28 35 70 34 1234 <br />' 36636 B-2 S ND ND ND ND ND 106 <br />' 36637 W-2 S ND,a ND 0 014 ND 0 023 1C <br /> 1 - <br /> Detection Limit unless other- W 50 ug/L 05 05 05 05 <br /> wise stated,ND means Not <br /> Detected S 10 mg/kg 0 005 0 005 0 005 0 005 <br /> t *%later samples are reported in ug/L,soil samples in mg/kg,and all TCLP extracts in mg/L <br /> #cluttered chromatogram, sample peak co-elutes 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 weakly modified gasoline is significant,b) heavier gasoline <br /> range compounds are significant(age gasoline?),c)li ter gasoline range compounds the most mobile traction) <br /> are significant d)gasolme range compounds are si icanf,no recognizable pattern e) TPH pattern that does <br /> not appear to die derived from gasoline ((9) one o a few isolated peaks present, gj strongly aged gasob_ I, or <br /> diesel range compounds are sigmfcant,Ft) )'fighter than water immisci le phase is present <br />' DHS Certification No 1644 EdwmardHamilton,Lab Director <br />