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Table 1 <br /> Monitoring Well Sampling Results <br /> Former LIST 1 Area <br /> Former Heinz Facility <br /> Tracy, California <br /> Sample Total <br /> Location Date TPH-G TPH-D Benzene Toluene Ethylbenzene Xylenes MTBE <br /> MW-1 5/1/98 7,400 NA 53 190 340 820 <250 <br /> MW-1 6/2/98 4,100 NA 44 110 180 450 <63 <br /> MW-1 7/15/98 4,600 NA 50 88 270 370 <50 <br /> MW-1 9/10/98 2,000 NA 22 30 120 140 <50 <br /> MW-1 11/16/98 2,600 <50 27 44 120 190 <50 <br /> MW-1 12/16/98 4,300 <100 49 96 230 360 <250 <br /> MW-1 4/22/99 3,100 NA 15 59 180 210 <50 <br /> MW-1 6/30/99 1,000 NA 11 26 71 130 <50 <br /> MW-1 9/2/99 2,900 NA 34 57 150 270 <50 <br /> MW-1D 9/2/19 1,300 NA 14 20 59 97 <50 <br /> MW-3 11/16/98 <50 <50 <0 5 <0 5 <0 5 <0 5 <5 <br /> MW-3D 11/16/98 <50 NA <0 5 <0 5 <0 5 <0 5 <5 <br /> MW-3 12/16/98 <50 <50 <0 5 <0 5 <0 5 <0 5 <5 <br /> MW-3 4/22/99 <50 NA <0 5 <0 5 <0 5 <0 5 <5 <br /> MW-3 6/30/99 <50 NA <0 5 <0 5 <0 5 <0 5 <5 <br /> MW-3D 6/30/99 <50 NA <0 5 <0 5 <0 5 <0 5 <5 <br /> NM-3 9/2/99 <50 NA <0 5 <05 <0 5 <0 5 <5 <br /> MW-4 11/16/98 120,000 <50 540 4,700 2,900 91900 <2,500 <br /> MW-4 12/16/98 120,000 <300 490 3,600 2,500 8,500 <2,500 <br /> MW-4 4/22/99 51,000 NA <500 3,100 2,000 6,900 <5,000 <br /> MW-4D 4/22/99 50,000 NA <500 3,000 2,000 6,800 <5,000 <br /> MW-4 6/30/99 170,000 NA 600 2,400 3,300 91800 <5,000 <br /> MW-4 9/2/99 61,000 NA 480 2,600 2,100 7,300 <1,000 <br /> Notes <br /> (1)All ground water concentrations expressed in micrograms per liter <br />