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110 2nd Avenue South,#D7,Pacheco,CA 94553 ifcC.V"BV-L ANALYTICAL 7NC7 Tele 510-798-1620 Fax.510-798-1622 John P Cummings&Associates Chant Project ID #395016 00, Sierra Date Sampled 04/21197 P O' Box 2847 Lumber Date Received 04/22197 Fremont,CA 945362847 Client Contact John Cummmgs Date Extracted 04/24/97 ' Client P O. Date Analyzed 04/24/97 Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline,with Mali)]tart Butyl Ether*&BTEX* EPA methods 503 modtfied 8015 and 8020 or 402 California RW CH SF Ba Re on Inetho GCF1D 5030 ' Lab ID Client ID Matrix TPH(g)� MTBE Benzene Toluene Et2ene n' Xylenos Surrogate Rec 75797 MWi W 69,000,1 ND< 120 8000 8500 2400 11,000 101 i75798 MW-2 W 80,000,a ND< 490 5600 11,000 r 2500 12,000 204 75799 MW-3 W ND ND 14 33 072 42 103 Re pgorting Limit unless W 50 ug/L 50 05 05 05 05 otherwise stated,ND means not detected above the reporting h=t S 10 mg/kg!i 05 0 005 0 005 0 005 0 005 - *water and vapor samples are reported in ug�L,soil and sludge samples in mg/kg,and all TCLP extracts in mg/L #cluttered chromatogram,sample peak coelutes with surrogate peak +The following descrTtions ofthe TPH chromatogram are cursor in nature and McCampbell Analytical is not responsible for t)ieir mterpretation a�unmodified or weakly modr d gasoline is stgnffrcant b)heavier gasoline range compounds are si;d,ficant(age gasolme)),c)h ter psohne range compounds(the most mobs fraction) are significant,d) sohne range commppounds havuig broa�cliromatoyaphle peaks are significant,biologically altcrsda gasoline,e�j TPH pattern thatdoeq not appear to be derived from ga§oluie(7),f) one to a few Isolated I peaks present, )stronglyaged gasoline or diesel range compounds are significant,h)h&ter than water imizuscible sheen is present,i) >fquid sample that contains greater than- 5 vaL%sediment,l)no recognisable pattern DHS Certification No 1644 Edward Hamilton,Lab Director I