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<br /> Table 1. Ground Water Analytical Data - Shell-branded Service Station - Incident#98995874, 341 E Main Street, Ripon, California
<br /> Depth to GW MTBE MTBE Dissolved Gallons
<br /> Water Elevation TPHg Benzene Toluene Ethylbenzena Xylenes EPA 8020 EPA 8260 Methanol Oxygen Removed
<br /> Date (feet) (feet) 4 (Concentrations in b) 0 (m ) ( al)
<br /> MW.2 (TOC=64 23)
<br /> 03/11/99 2661 37 62 <50 0 <0 500 190 <0 500 0 602 <2 00 0 830 --- 3 1 ---
<br /> 04/22/99 2742 36 81 <50 0 <0 500 <0 500 <0 500 <0 500 <5 00 <0 500 <1,000 2 4 ---
<br /> 07/28/99 3031 33 92 <50 0 <0 500 <0 500 <0 500 <0 500 <5 00 <2 00 <1,000 2 1 ---
<br /> 10/27/99 29.78 34.45 <50 0 <0 500 <0.500 <0 500 <0 500 mmc <0 500 <1000 --
<br /> MW-3 (TOC=66 32)
<br /> 03/11/99 2872 37 60 <50 0 <0 500 193 <0 500 0 672 <2 00 <0 500 --- 40 ---
<br /> 04/22/99 2953 3679 <50 0 <0 500 <0 500 <0 500 <0 500 <5 00 <0 500 <1,000 41 ---
<br /> 07/28/99 3241 3391 <50 0 <0 500 <0 500 <0 500 <0 500 <2_00 <0 500 <1,000 3 4 ---
<br /> 10/27/99 3193 34.39 <50 0 <0 500 <0 500 <0 500 <0.500 c 0 620 <1000 --
<br /> EW-1 (TOC=64 24)
<br /> 03/11/99 2660 37 64 <500 <5 00 <5 00 <5 00 <5 00 5,090 3,100 --- 10 102
<br /> 04/08/99 27 12 37 12 <50 0 <0 500 <0 500 <0 500 <0 500 9,620 --- --- 2 1 150
<br /> 04/14/99 27 17 37 07 <50 0 1 13 198 <0 500 249 9,080 4,690 --- 20 150
<br /> 04/22/99 2749 3675 <50 0 <0 500 <0 500 <0 500 <0 500 4,170 4,520 2,000 15 I50
<br /> 04/29/99 2789 3635 310 12 36 12 59 4,700 6,510 --- 2 8 150
<br /> 05/04/99 Step Pumping Test 1,100
<br /> 05/05/99 Con%lant IJigLh,iigc 11mnping Tcst b 190
<br /> 05/06/99 28 03 3621 <500 <5 00 <5 00 <5 00 <5 00 10,600 19,200 --- to 170
<br /> 05/13/99 2783 3641 420 15 3 71 1 0 793 262 10,500 15,100 b 2 5 150
<br /> 05/18/99 28 37 35 87 <20,000 <200 <200 <200 <200 7,880 14,600 --- 12 160
<br /> 05/25/99 28 17 3607 <50 <0 50 0 521 <0 50 1 16 16,200 24,200 b 07 150
<br /> 06/01/99 2856 3568 <5,000 <0 50 <0 50 <0 50 <0 50 15,000 15,400 --- 14 150
<br /> 06/08/99 2856 35 68 <100 <1 00 <1 00 <1 00 <1 00 15,900 --- ---
<br /> 06/15/99 2856 35 68 <50 <0 50 4 64 <0 50 0 661 18,000 --- --- 2 3 150
<br /> 06/21/99 2856 3568 <200 <2 00 <2 00 <2 00 <2 00 24,900 27,100 --- 2 4 150
<br /> 07/09/99 2981 3443 <10,000 <100 <100 <100 <100 74,400 94,600 --- 26 150
<br /> 07/12/99 2987 3437 550 <0 500 <0 500 <0 500 <0 500 72,100 87,000 --- 2 6 150
<br /> 07/22/99 3010 34 14 <50 0 <0 500 <0 500 <0 500 <0 500 84,000 103,000 --- 21 155
<br /> 07/28/99 3041 3383 <20,000 <200 <200 <200 <200 107,000 90,000 5,220 12 150
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