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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 GeoEnvironmental,Inc Client Project ID Guardmo&Crawford Date Sampled 04/21/97 <br /> 1803 West March Lane,Suite A Date Received 04122197 <br /> ' Stockton,CA 95207 Client Contact Bill Little Date Extracted 04122-04123197 <br /> Client P O Date Analyzed 04122-04123/97 <br /> ' Gasoline Range(C6-C12) Volatile H3drocarbons as Gasoline*,with BTFX* <br /> FPA methods 5030 modifted 8015 and 8020 or 6O2 California RW CB SF Bay Region)method GCFIQ 5030 <br /> Eth lben- % Ree <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene zene Xylenes Surrogate <br /> 75754 P4-H2O W ND,i W11,00 <br /> ND ND 102 <br /> ' 75755 P5-H20 W 16,000,a,i 480 390 102 <br /> 75756 P6-H20 W 94,000'a,i 2100 12,000 100 <br /> 75757 P7-H20 W 510,a,i 5 9 16 108 <br /> 75758 P8-H20 W 49,000,a,h,t 120 3600 3700 1100 6000 99 <br /> 75759 P5-10 S ND IvD ND ND ND ND 101 <br /> 75760 P5-15 S ND ND ND ND ND ND 101 <br /> • 75761 P6-10 S ND ND ND ND ND ND 101 <br /> 75762 P6-15 S ND ISD ND ND ND ND 103 <br /> ' 75763 P7-5 S 7 2,a ND 0 083 045 018 10 100 <br /> 75764 P7-10 S 8 3,a ND 0 045 019 Oil 069 102 <br /> ' 75765 P7-15 S 5 9,a ND 0 091 028 0 099 072 103 <br /> 1 <br /> ' Reporting Limit un- W 50 ug/L 50 05 05 05 05 <br /> less otherwise stated, <br /> ND means not de- <br /> tected above the re- S 10 mg/kg 005 0 005 0 005 0 005 0 005 <br /> ' porting limit <br /> *water and vapor samples are reported in ug/L,soil and sludge samples m mg/kg,and all TCLP extracts in mglL <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 weakly modified gasoline is significant,b) heavier gasoline <br /> ' range compounds are significant(aged gasolme9),c)ligliter gasoline range compounds(the most mobile fraction) <br /> are significant, d) asol-ine range compounds having broadchromatogaphic peaks are significant,to aew isolated <br /> altered gasoline,e9 TPH pattern that does not appear to be derived from gasoline ( ),f) <br /> peaks present,g)stronglyaged gasoline or diesel range compounds are significant,h)lighter than water unmiscible <br /> ' sheen is present,i) liquid sample that contains greater than-- 5 vol /° sediment,A no recognizable pattern <br /> DHS Certification No 1644 ,r Edward Hamilton,Lab Director <br />