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f TABLE 1 <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 ug/1) <br /> Well ID Date [Elev <br /> ellhea Depth to G W Benzene Toluene Ethyl Xylenes TPHg MTBE Fuel D]ssoved <br /> Water Elev I I Benzene I(EPA 8020) Oxygenates Oxygen <br /> MW4 10/29/91 895 1130 -235 110 79 640 1,700 19,000 - -- -- <br /> 03/04/92 903 934 -031 12 32 91 38 3,700 -- - -- <br /> 03113//92 903 900 003 -- -- -- -- -- <br /> 09/01/92 <br /> -09101/92 903 1216 -313 38 80 1,100 590 40,000 -- -- -- <br /> 12/03/92 903 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 /> 12/27/93 903 836 067 <0 50 76 700 840 15,000 -- -- -- <br /> 03/30/94 903 738 165 -- -- -- - __ <br /> 06/24/94 903 859 044 <0 50 <0 50 780 1 200 16,000 -- -- -- <br /> 09/16/94 903 1092 -189 <0 50 <0 50 240 200 2,800 -- -12/21/94 903 975 -072 <0 50 13 330 270 7,000 -- - -- <br /> 03/30/95 903 436 467 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 /> 12/29/95 903 803 1 00 66 30 380 420 11,000 -- -- - <br /> 03/29/96 903 377 526 18 16 220 110 8,600 -- -- - <br /> 06/28/96 903 630 273 34 42 140 100 8,200 - -- <br /> 09/30/96 903 944 -041 24 28 470 540 10,000 -- -- -- <br /> 12/17/96 903 844 059 21 28 390 520 9,600 -- -- -- <br /> 03/25/97 903 337 566 34 24 180 210 9,200 -- -- -- <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 6,200 -- -- -- <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 -- j <br /> 09/29/98 903 992 -089 59 <50 42 41 1,600 -- -- <1,000 <br /> 12/23/98 903 883 020 12 48 78 23 3,000 <10 -- -- <br /> 04/05/99 903 7 11 192 613 <5 0 508 175 2,650 <50 0 -- -- <br /> 07/09/99 1 903 1 864 1 039 11 <10 37 1 2,500 1 <50 0 1 -- -- <br /> W 1625821TABLEGWAELEGW 2gmr(8127!99] <br />