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• SUMMARY OF GROUND
<br /> IRR ANALYTICAL RESULTS
<br /> Farmer Property, Stockton, CA
<br /> Page 6 of 10
<br /> e orte in ug
<br /> Well ID Date TPHg Benzene Toluene Ethyl Xylenes MTBE ETBE TBA Din TAME 11,2-DCI Lead
<br /> Benzene
<br /> MW6 03/07103-- 1,300 <0 5 <0 5 25 < <2 0 <20 <2 0 <2 0 <
<br /> (cont'd) 06109103** 1,400 18 <0 5 0 7 <1 0 1 8* <0 5 <5 0 <0 5 <0 5 <0 5 NA
<br /> 09/11103** 1,200 2 8 <0 5 2 0 <1 0 1 9* <0 5 <5 0 <0 5 <0 5 <0 5 NA
<br /> 12118103** 1,200 39 <0 5 24 <1 0 1 1* <0 5 <5 0 <0 5 <0 5 <0 5 NA
<br /> 03118104** 230 0 7 <0 5 <0 5 <1 0 0 8* <0 5 <5 0 <0 5 <0 5 <0 5 NA
<br /> 06108/04** 130 <0 5 <0 5 <0 5 <1 0 1 9* <05 <5 0 <0 5 <0 5 <0 5 NA
<br /> 09114104** 250 <0 5 <05 0 7 <1 0 1 8* <0 5 <5 0 <0 5 <0 5 <0 5 NA
<br /> 12/6/2004** 190 08 <0 5 08 <1 0 14* <0 5 <50 <0 5 <0 5 <0 5 NA
<br /> 03/02105** 120 <0 5 <0 5 <0 5 <1 0 1 3* <0 5 <5 0 <0 5 <0 5 <0 5 NA
<br /> 05/12/05** 70 <0 5 <0 5 <0 5 <1 0 1 0* <0 5 <5 0 <0 5 <0 5 <0 5 NA
<br /> 09127/05** 84 <0 5 <0 5 <0 5 <1 0 0 8* <0 5 <5 0 <0 5 <0 5 <0 5 NA
<br /> 12128105** NS NS NS NS NS NS NS NS NS NS NS NS
<br /> 03123106** 89 <0 5 <0 5 <0 5 <1 0 12* <0 5 <5 0 <0 5 <0 5 <0 5 NA
<br /> MW7 03/27/98 36,000 6,900 290 4,800 6,200 <5* <5 <100 <5 <5 <5 <40
<br /> 06/26/98 38,000 7,400 100 3,300 2,700 NA NA NA NA NA NA NA
<br /> 09/24/98 36,000 4,800 96 2,400 3,900 NA NA NA NA NA NA NA
<br /> 12/17/98 29,000 5,900 75 4,300 1,700 2,000 NA NA NA NA NA NA
<br /> 03/16/99 25,300 4,460 <50 3,680 4,230 NA NA NA NA NA NA NA
<br /> 08/19/99 29,000 7,300 <20 2,200 1,100 NA NA NA NA NA NA NA
<br /> 10/05/99 32,000 3,900 12 2,900 3,600 NA NA NA NA NA NA NA
<br /> 12/21/99 22,000 3,000 <5 0 2,200 640 NA NA NA NA NA NA NA
<br /> 03/09/00 19,000 2,500 7 7 1,600 440 NA NA NA NA NA NA NA
<br /> 06/08/00 20,000 2,400 39 920 230 NA NA NA NA NA NA NA
<br /> 09/14/00 23,000 3,100 <25 1,700 420 NA NA NA NA NA NA NA
<br /> 11/27/00 21,000 2,000 <25 1,000 230 NA NA NA NA NA NA NA
<br /> 03/01/01 12,000 1,300 <5 0 740 200 <50 NA NA NA NA NA NA
<br /> 06/11/01 11,000 1,200 <5 0 470 110 <20* <20 <200 <20 <20 <20 NA
<br /> 10/12/01 16,900 1,900 62 1,100 540 <2 0* <2 0 <200 <2 0 <2 0 <2 0 NA
<br /> 12131101** 18,000 1,800 <10 1,100 790 <40* <40 <400 <40 <40 <40 NA
<br /> 03128102** 16,000 1,400 <5 0 940 310 <40* <40 <400 <40 <40 <40 NA
<br /> 06112102** 7,700 540 <0 5 240 74 <40* <40 <400 <40 <40 <40 NA
<br /> 09123102** 9,700 760 6 0 430 120 <20* <20 <200 <20 <20 <20 NA
<br /> 12/05102** 6,700 510 <2 0 250 54 <20* <20 <200 <20 <20 <20 NA
<br /> 03107103** 2,600 110 <2 0 64 97 15* <20 <200 <20 <20 <20 NA
<br /> 06/09103** 3,600 260 0 7 190 28 12* <0 5 21 <0 5 <0 5 <0 5 NA
<br /> 09191103** 9,000 500 17 400 150 12* <10 <100 10 <10 <10 NA
<br /> 12118103** 3,200 130 <0 5 67 8 8 10* <10 <100 <10 <10 <10 NA
<br /> 03118104** 750 49 <0 5 38 6 5 5 3* <2 0 <20 <2 0 <2 0 <2 0 NA
<br /> 06/08/04** 840 65 <0 5 51 <1 0 10* <0 5 <5 0 <0 5 <0 5 <0 5 NA
<br /> W 1625B6WABLEMGWiAB(2)SCIS
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