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TABLE i <br /> SUMMARY OF GROUNDWATER MONITORING AND ANALYTICAL RESULTS <br /> Gardner Property,Thornton,CA <br /> Page 4 of 7 <br /> measured In feet MSL (Reported In u /1 <br /> Welf ID Date Wellhead Depth to G W Benzene Toluene Ethyl Xylenes TPHg MTBE Fuel Dlsso�ed <br /> Elev Water Elev Benzene EPA 802xygenates Oxygen <br /> MV114 10129/91 895 1130 -235 110 79 640 1 700 19 000 -- <br /> 03104192 903 934 -031 1 2 32 91 38 3 700 - <br /> 03113/92 903 900 003 — — — — — — <br /> 09/01/92 1 903 12 16 -313 38 80 1,100 590 40 000 — — <br /> 12/03/92 903 1110 -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 /> 12/27193 903 836 067 <050 76 700 840 15 000 - <br /> 03/30/94 903 738 165 -- — -- — — -- — <br /> 06/24194 903 8 59 044 <050 <0 50 780 1 200 16,000 — — <br /> 09/16/94 903 1092 -1 89 <0 50 <0 50 240 200 2 800 -- — <br /> 12/21/94 903 975 -072 <0 50 13 330 270 7 000 -- _ — <br /> 03130/95 903 436 467 47 23 80 13 2 100 — - <br /> 06/30/95 903 553 350 38 47 270 300 12 000 — - <br /> 09129/95 903 875 028 10 15 240 280 8 800 — - <br /> 12/29/95 903 803 1 00 66 30 380 420 11 000 — - <br /> 03129/96 903 377 526 18 16 220 110 8 600 — -- <br /> 06/28/96 903 630 273 34 4 2 140 100 $200 - <br /> 09/30/96 903 944 -041 24 28 470 540 10 000 — - <br /> 12117/96 903 844 059 21 28 390 520 9 600 <br /> 03/25197 903 337 566 34 24 180 210 9200 - <br /> 06/25/97 903 710 1 93 12 23 230 240 7,800 -- — <br /> 09/18/97 903 1030 -127 38 32 10 550 9 900 - <MDLs <br /> 12/16/97 903 934 -031 28 10 420 510 6200 — - <br /> 03/20/98 903 283 620 26 23 170 110 4 400 30 - <br /> 06/30/98 903 481 422 13 <10 230 150 4 600 — <MDLs — <br /> 09/29/98 903 992 -089 59 <50 42 41 1 600 — - <1 000 <br /> 12/23/98 903 883 020 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 /> 07/09/99 903 864 039 <10 <10 <10 37 2 500 <50 0 - — <br /> 10/07/99 903 1046 -143 11 1 11 3 575 646 2 700 — — <br /> 12128/99 903 960 -057 <10 0 <10 0 84 7 102 4,920 — - <br /> 03121100 903 703 200 <0 500 2 57 202 943 2200 <2 50 — <br /> 07/13/00 903 862 041 <0 500 0 661 192 393 704 -- <br /> 09/27/00 903 1001 -098 <10 74 84 51 6 000 — <MDLs — <br /> 12120/00 903 983 -080 94 82 77 41 7 600 <50 — <br /> 03129/01 903 885 018 10 84 65 23 3 400 <2 D" -- — <br /> 06/18/01 903 1002 -099 12 9 4 170 52 7 500 34 -- <br /> 09/24/01 903 1114 -2 11 69 14 140 140 5 400 <10 -- — <br /> • 01/15/02 903 978 -075 18 15 71 180 56C)0 <2 0" <MDLs = <br /> 04103/02 1 903 1 911 1 -008 1 65 1 6 7 1 93 1 49 5 700 1 <20— <MDLs <br /> W%6258:\TA8LE61TABLEGW xli(8/21/20021 <br />