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TABLE 7 <br /> SUMMARY OF GROUNDWATER MONITORING AND ANALYTICAL RESULTS <br /> Gardner Property,Thornton,CA <br /> Page 4 of 7 <br /> measured in feet MSL Re orted in u /I <br /> Well ID Date Wet(head Depth to G W Benzene Toluene Ethyl Xylenes TPHg MTBE Fuel DissO ed <br /> Elev Water Elev Benzene EPA 802PI OxXgenates Oxygen <br /> MW4 10/29191 895 1130 -235 110 79 640 1 700 19 000 - - <br /> 03/04/92 903 934 -0 31 1 2 32 91 38 3 700 <br /> 03/13/92 903 Soo 003 — -- -- -- — " <br /> 09/01/92 903 1216 -313 38 60 1,100 590 40,000 -- <br /> 12/03192 903 11 10 -207 26 110 490 1 100 15,000 -- <br /> 03/24/93 903 573 330 72 19 56 190 7,100 - <br /> 07/23/93 903 754 149 <0 50 <0 50 540 140 3 100 -- — <br /> 12/27/93 903 836 0 67 <0 50 76 700 840 15 000 -- - <br /> 03130194 903 738 165 — -- — - - — <br /> 06/24/94 903 859 044 <0 50 <0 50 780 1 200 16 000 - <br /> 09/16194 903 1092 -1 89 <0 50 <0 50 240 200 2 800 -- — <br /> 12121/94 903 975 -072 <0 50 13 330 270 7 000 - <br /> 03/30/95 903 436 4 67 47 23 80 13 2 100 -- — <br /> 06/30/95 903 553 350 38 47 270 300 12 000 -- <br /> 09/29/95 903 875 028 10 15 240 280 8 800 — <br /> 12129195 903 803 1 00 6 b 30 aa0 420 11,000 <br /> 03129/96 903 377 5 26 18 16 220 110 8 600 — — <br /> 06/28/96 903 630 273 34 42 140 100 8200 - - <br /> 09/30/96 903 944 -041 24 28 470 540 10 000 — <br /> 12/17/96 903 844 0 59 21 28 390 520 9 600 <br /> 03125197 903 337 566 34 24 180 210 9200 <br /> 06/25197 903 710 1 93 12 23 230 240 7 800 <br /> 09/18/97 903 1030 -1 27 38 32 10 550 9 900 <MDLs <br /> 12/16/97 903 934 -0 31 28 10 420 510 6200 — <br /> 03120/98 903 283 620 26 23 170 110 4 400 30 <br /> 06/30198 903 481 422 13 <10 230 150 4 600 -- <MDLs — <br /> 09/29/98 903 992 -089 59 <50 42 41 1 600 -- — <1 000 <br /> 12/23/98 903 $83 020 12 4 8 78 23 3 000 <10 — <br /> 04/05/99 903 711 1 92 613 <5 0 508 175 2,650 <50 0 — <br /> 07/09199 903 864 0 39 <10 <10 <10 37 2 500 <50 0 - <br /> 10/07/99 903 1046 -143 11 1 113 575 646 2 700 -- — <br /> 12/28/99 903 960 -0 57 <10 0 <100 847 102 4,920 -- <br /> 03/21100 903 703 200 <0 500 257 202 943 2200 <2 50 — <br /> 07/13/00 903 862 0 41 <0 500 0 661 192 393 704 -- <br /> 09/27/00 903 1001 -098 <1 0 74 84 51 6 000 -- <MDLs <br /> 12/20/00 903 983 -080 94 82 77 41 7 600 <5 0 — <br /> 03/29/01 903 885 0 18 10 84 65 23 3 400 <2 0" - <br /> 06/18101 903 1002 -0 99 12 94 170 52 7 500 34 <br /> 09/24/01 903 11 14 -211 6 9 14 140 140 5 400 <10 — <br /> 01/15/02 903 9 76 -075 18 15 71 180 5 600 <2 V. <MDLs — <br /> 04/03/02 903 9 11 1 -0()8 1 55 1 67 1 93 1 49 1 5,700 1 <2 0`• 1 <MDLs — <br /> W�B;lB2"A8LEsTABLECW Al [8121/20021 <br />