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ww ww � w ■wE w w w w w w ■w ww � �w w■ �w � � TABLE 2 ANALYTICAL RESULTS OF GROUND WATER SAMPLES EPA Method 8015/8020/8260 Modified Former Curtiss Pontiac-Buick - 2450 Toste Road, Tracy, California (µg/1) tertiary Well d1- ethyl methyl amyl ternary buty Sample Depth to Ethyl- isopropyl tertiary tertmary- I D TPH-g TPH-d Benzene Toluene Xylenes methyl alcohol Screen Date GW benzene ether butyl ether butyl ether ether (TBA) (DIPE) (ETBE) (MTBE) TAME MW-4 12-07-99 725 1,600 500 280 13 15 76 <1 0 <1 0 62 <10 <5 0 5- 15 03-17-00 672 580 100 130 29 16 9.1 <1 0 <1 0 28 <1 0 <5 0 07-17-00 706 2,200 310 500 20 90 29 --- --- -- --- --- 10-17-00 654 3,200 250 810 36 120 46 <1 0 <1 0 67 <1 0 <5 0 01-30-01 714 980 120 330 58 24 10 <10 <1 0 41 <1 0 <5 0 04-25-01 703 120 <50 32 078 40 21 <1 0 <1 0 15 <1 0 <5 0 07-27-01 707 <50 <50 17 <0 5 <0 5 <0 5 <1 0 <1 0 22 <l 0 <5 0 10-24-01 793 650 110 140 62 45 16 <1 0 <1 0 3.6 <1 0 <5 0 MW-5 02-27-98 542 <50 <50 <0 5 <0 5 <0 5 <0 5 <5 0 <5 0 <5 0 <5 0 <5 0 5- 15 09-28-98 751 <50 <50 <0 5 <0 5 <0 5 <0 5 <1 0 <1 0 <1 0 <1 0 <5 0 12-17-98 752 <50 <50 <0 5 <0 5 <0 5 <0 5 <1 0 <1 0 <1 0 <1 0 <5 0 03-25-99 726 <50 <50 <0 5 <0 5 <0 5 <0 5 <5 0 <1 0 <1 0 <1 0 <5 0 06-21-99 753 <50 <50 093 37 071 38 <10 <1 0 <1 0 <1 0 <5 0 09-21-99 738 <50 <50 <0 5 <0 5 <0 5 <0 5 <1 0 <1 0 <1 0 <1 0 <5 0 12-07-99 754 <50 <50 <0 5 <0 5 <0 5 <0 5 <10 <1 0 <1 0 <1 0 <5 0 03-17-00 705 <50 <50 <0 5 <0 5 <0 5 <0 5 <1 0 <1 0 <1 0 <1 0 <5 0 07-17-00 743 <50 <50 <0 5 <0 5 <0 5 <0 5 <1 0 <1 0 <1 0 <1 0 <5 0 10-17-00 709 <50 <50 17 <0 5 <0 5 0.56 <1 0 <1 0 <1 0 <1 0 <5 0 01-30-01 749 <50 <50 <0 5 <0 5 <0 5 <0 5 <1 0 <1 0 <1 0 <1 0 <5 0 04-25-01 736 <50 <50 <0 5 <0 5 <0 5 <0 5 <1 0 <1 0 <1 0 <1 0 <5 0 07-27-01 741 <50 <50 <0 5 <0 5 <0 5 <0 5 <1 0 <1 0 <1 0 <10 <5 0 10-24-01 7 47 1 <50 1 <50 <0 5 1 <05 1 <05 1 <0 5 1 <10 I <1 0 <1 0 1 <10 1 <5 0 Advanced GeDEnvlronmental Inc