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�I <br /> TABLE 2 <br /> ANALYTICAL RESULTS OF GROUND WATER SAMPLES <br /> EPA Method 80151802018260 Modified <br /> Former Curtiss Pontiac Buick- 2450 Toste Road, Tracy, California <br /> {µg11) <br /> di- ethyl methyl tertiary- tertiary <br /> Well tertiary tertiary- amyl <br /> Sample Depth Ethyl- Isopropyl butyl ` <br /> I D Date to GW TPH-g TPH-d Benzene Toluene benzene Xylenes ether butyl butyl methyl _alcohol <br /> Screen ether ether ether __ <br /> - <br /> (D1PE) ETBE MTBE TAME (TBA) <br /> MW-1A 02-27-98 490 4,300 1,400 200 41 2.9 560 <5 0 <5 0 <5 0 <5 0 <5 0 <br /> 23 -28 09-28-98 706 220 <50 15 3.7 4.5 1.7 <1 0 <1 0 <1 0 <1 0 <5 0 <br /> 12-17-98 686 58 <50 4 2 31 2.0 3 0 <1 0 <1 0 <1 0 <1 0 <5 0 <br /> 03-25-99 689 71 <50 081 0.93 12 082 <1 0 <1 0 <1 0 <1 0 <5 0 <br /> 06-21-99 709 200 68 16 21 4 4 21 <1 0 <1 0 <1 0 <1 0 <5 0 <br /> 09-21-99 694 63 <50 5.7 3.9 <0 5 2 5 <1 0 <1 0 <1 0 <1 0 <5 0 <br /> 12-07-99 697 <50 <50 21 0.83 <0 5 1.7 <1 0 <1 0 <10 <1 0 <5 0 <br /> MW-113 02-27-98 525 5,000 1,200 480 140 8.9 600 <5 0 <5 0 <5 0 <5 0 <5 0 <br /> 5- 15 09-28-98 7 01 2,000 160 530 260 55 130 <1 0 <1 0 9.9 <1 0 <5 0 <br /> 12-17-98 7 02 560 93 270 36 13 22 <1 0 <1 0 14 <1 0 <5 0 <br /> 03-25-99 6 88 3,600 290 1,300 120 110 88 <5 0 <1 0 23 <1 0 <5 0 <br /> 06-21-99 700 3,400 130 740 400 59 220 <1 0 <1 0 13 <1 0 <5 0 <br /> 09-21-99 690 2,400 210 540 200 58 120 <1 0 <1 0 30 <1 0 <5 0 <br /> 12-07-99 705 1,300 84 390 79 31 55 <1 0 <1 0 8.9 <1 0 <5 0 <br /> MW-2A 02-27-98 5 55 <50 <50 <0 5 <0 5 <0 5 <0 5 <5 0 <5 0 <5 0 <5 0 <5 0 <br /> 25- 30 09-28-98 700 <50 <50 <0 5 <0 5 <0 5 <0 5 <1 0 <1 0 <10 <1 0 <5 0 <br /> 12-17-98 7 04 <50 <50 <0 5 <0 5 <0 5 <0 5 <1 0 <1 0 <10 <1 0 <5 0 <br /> 03-25-99 6 89 <50 <50 <0 5 <0 5 <0 5 <'0 5 <5 0 <1 0 <1 0 <1 0 <5 0 <br /> 06-21-99 704 57 <50 15 64 14 75 <1 0 <1 0 <1 0 <1 0 <5 0 <br /> 09-21-99 692 <50 <50 <0 5 <0 5 <0 5 <0 5 <1 0 <1 0 <1 0 <1 0 <5 0 <br /> 12-07-9917 08 1 <50 1 <50 1 14 1 <0 5 1 <0 5 1 <0 5 1 <1 0 1 <1 0 <1 0 1 <1 0 1 <5 0 <br /> Mores , <br /> Ground water depth measurements in feet <br /> Mgll micrograms per liter or parts per billion,ppb <br /> TPH-g Total petroleum hydrocarbons quantified as gasoline <br /> TPH-d Total petroleum hydrocarbons quantified as diesel <br /> *ground water sample collected from 2420 Grant Line Road <br /> Concentrations in Italics indicate suspected cross-contamination Advanced GcoEnvironmentai Inc <br />