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<br /> Table l. Ground Water Analytical Data- Shell-branded Service Station-Incident#98995874, 341 E Main Street,Ripon, California
<br /> MTBE MTBE DlssoIved Gallons
<br /> Di pth to GW
<br /> `Yater Elevations TPHg Benzene Toluene Ethylbenzen( Xylenes EPA 8020 EPA 8260 Methanol Oxygen Removed
<br /> Date I feet) (feet) 4 (Concentrations in b) (m ) ( al)
<br /> 08/05/99 30 29 3395 195 14 0 440 270 106 112,000 121,000 --- 10 150
<br /> 08/11/99 3035 3389 <2,500 <25 0 <25 0 <25 0 <25 0 148,000 157,000 --- 2 1 150
<br /> 08/18/99 30 73 3351 149 13 1 0 842 <0 500 270 146,000 440,000 --- 25 200
<br /> 08/27/99
<br /> 3009 34 15 2100 <1 00 <1 00 <1 00 <1 00 174,000 187,000 --- 2 8 150
<br /> Og/09/99 ?810 3614 <10,000 <100 <100 <100 <100 147,000 192,000 19 150
<br /> 09/13/99 27 41 3683 <500 <5 00 <5 00 <5 00 <5 00 11 95,,000 12800 99,,000 2 4 150
<br /> 09/22/99 30 11 34 13 <1,250 <2 5 <2 5 <2 5 <2 5 800 --- 0 49 151
<br /> 09/29/99 2994 3430 <1,000 15 9 <100 <10 0 92,<10 0 110,000 11 , a•7
<br /> 000 000 --- 0 9 160
<br /> 10/07/99 3005 3419 759 <0.500 <0.500 <0 500 <0.500 65,700 -f
<br /> 10/13/99 3000 34.24 <10,000 <100 <100 <100 <100 68,900 225,000 2.0
<br /> I --
<br /> 10/19/99 2981 3443 <10,000 <100 <100 <100 <100 144,004 117,000 1-
<br /> 10/27/99 29.83 3441 1,940 16.5 167 47.2 337 c 84,000 2,730 2.5
<br /> 11/02/99 2976 3448 1,710 23.0 126 417 299 72,800 72,500 -- 2.5
<br /> 11109199 29.67 3457 144 <0.500 <0.500 <0 500 <0.500 78,200 99,700 -- 2.1
<br /> 11/1.7/99 3004 3420 <50 0 <0 500 <0.500 <0 500 <0.500 120,000 91,600 2.1
<br /> 11/23/99 29.42 34.82 <5,000 <50 <50 <50 <50 58,000 94,000 -- 3.3
<br /> 12/03/99 2970 34.54 165 805 137 193 16.5 1,230,000 111,000 -- 2.3
<br /> 12/07/99 29.55 34.69 <500 <5.00 <5.00 <5 00 <5.00 85,100 75,000 -- 1.07
<br /> 12/15/99 2885 35.39 <250 <2 50 <2 50 <2.50 <2.50 218,000 104,000 -- 2.8
<br /> 12/99 2920 35.04 643 <0.500 <0500 <0 500 <0.500 114,000 141,000 -- 0.6
<br /> 12/29/99 29.30 3494 <500 <15.0 <5 00 <5.00 <5.00 150,000 99,200 -- 1.8
<br /> Total Gallons Removed 14,938
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