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T 2 .SUMMARY OF GROUND ANALYTICAL RESULTS Farmer Property,Stockton,CA Page 8 of 8 (Reported in u Weil ID Date TPHg Benzene Toluene Ethyl Xylenes MTBE ETBE I TBA DIPE TAME 1 2-DC Lead Benzene CW 06108104** <50 <0 5 <0 5 <05 <1 0 1 5* <0 5 <5 0 <0 5 <0 5 <0 5 NA (confd) 09114104** <50 <0 5 <0 5 <0 5 <1 0 1 5* <0 5 <50 <0 5 <0 5 <0 5 NA 12/6/2004** <50 <0 5 <0 5 <0 5 <1 0 09* <0 5 <5 0 <0 5 <05 <0 5 NA 03102105** <50 <0 5 <0 5 <0 5 <1 0 13* <0 5 <5 0 <05 <0 5 <0 5 NA 05112105*"" <50 <0 5 <0 5 <0 5 <1 0 0 9* <0 5 <5 0 <0 5 <0 5 <0 5 NA 09127105** <50 <0 5 <0 5 <0 5 <1 0 07- <0 5 <5 0 <0 5 <0 5 <0 5 NA AS1 01118102** 78,000 2,500 1,600 3,200 16,000 <25 <25 <250 <25 <25 <25 NA AS2 01118102** 130,000 7,600 8,900 3,000 16,000 <50 <50 <500 <50 <50 <50 NA VW1 06108104** 20 000 720 97 3 300 3,100 <40* <40 <400 <40 <40 <40 NA 09114104** 17,000 570 18 2,600 2 600 <40* <40 <400 <40 <40 <40 NA 121612004** 15,000 460 <25 3,300 560 <2 0* <2 0 <20 <2 0 <2 0 <2 0 NA 03!02105** 9,200 220 59 2,000 150 <20* <20 <200 <20 <20 <20 NA 05112105** 28,000 330 650 2,900 7,700 <100* <100 <1,000 <100 <100 <100 NA 09127105** NS NS NS NS NS NS NS NS NS NS NS NS VW2 06108104** 490 20 14 3 7 34 0 6* <0 5 <5 0 <0 5 <0 5 <0 5 NA 09114104** 74 <0 5 <0 5 06 2 3 <0 5* <0 5 <5 0 <0 5 <0 5 <0 5 NA 1216!2004** 2,000 29 38 61 230 <0 5* <0 5 <5 0 <0 5 <0 5 <0 5 NA 03102105** 740 2 3 7 5 26 54 <2 0* <2 0 <20 <2 0 <2 0 <2 0 NA 05112105** 13,000 <5 0 200 310 1 900 <20* <20 <200 <20 <20 <20 NA 09127105** 1,700 1300 110 70 280 <10* <10 <10 <10 <10 <10 NA SB10-W 03/03/99 1,010 <0 500 <0 500 <0 500 <0 500 2 21* <2 00 <100 <2 00 <2 00 <2 00 NA SB11-W 03/03/99 212 <0 500 <0 500 <0 500 <0 500 <2 00* <2 00 <100 <2 00 <2 00 <2 00 NA SB12-W 12111!01** 71000 350 45 1200 9,400 <40* <40 <400 <40 <40 <40 NA SB13-W 12111!01*` <50 <0 5 <0 5 <05 <1 0 <2 0* <2 0 <20 <2 0 <2 0 <2 0 NA SB14-W 12111101** <50 <0 5 <0 5 <0 5 <1 0 <2 0* <2 0 <2 0 <2 0 <2 0 <2 0 NA SB15-W 12111101** <50 <0 5 <0 5 <0 5 <1 0 <2 0* <2 0 <20 <2 0 <2 0 <2 0 NA SB16-W 12!11101** <50 <0 5 <0 5 <0 5 <1 0 <2 0* <2 0 <20 <2 0 <2 0 <2 0 NA Notes Wellheads surveyed by a California Licensed well surveyor on March 15,2002 ug/l denotes micrograms per liter or parts per billion <denotes not detected at or above Stated Method Detection Limit TPHg denotes Total Petroleum Hydrocarbons as gasoline,analyzed by EPA Method 5030/8015 MTBE denotes methyl tertiary butyl ether by EPA Method 8020 unless otherwise noted ETBE denotes ethyl tertiary butyl ether by EPA Method 8260 or 8260B TBA denotes tertiary butyl ether by EPA Method 8260 or 82608 RIPE denotes di-isopropyl ether by EPA Method 8260 or 8260B TAME denotes tertiary amyl methyl ether by EPA Method 8260 or 8260B CW denotes Canepa(adjacent property owner)Well located on Farmer property NA denotes not analyzed NS denotes not sampled *denotes MTBE analyzed by EPA Method 8260 or 8260B **denotes sample was also analyzed for ethyl dibromide by EPA Method 82608,but was not detected W Z25981TABLEMGWTAB(2)XLS