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Table 2
<br /> Historical Groundwater Monitoring and Analytical Data
<br /> Ranch Market
<br /> 23569 South Santa Fe Road
<br /> Riverbank,California
<br /> Well NoJ Ethyl- EPA:8020 EPA method 8260 B
<br /> Elevation Date Benzene Toluene bet ,n. Xylenes "` TPA-G -MTBE MTBE TBA- DiPE ETBA ` TAME 1;2-DCA F,DB DTW" SPT WTE
<br /> (ToC). ..:(µg/L).:. (µg/L) (µg/L) -(µ8R-) "` (µ8/L) (µP/-).. .. (µSIL) (µg/L)... (4L) -(µSQ-) (µed-) (µrd-) (p€1L) (B) (B) (B)
<br /> Soil Boring Grab Water Samples
<br /> B-1
<br /> 01/23/98 36,400 47,100 3,990 2,000 238,000 a =ND
<br /> ND ND -- -- -- -- -
<br /> Groundwater Monitoring Wells
<br /> MW-1
<br /> 98.94 12/09/98 5>120 7,390 696 5,020 65,900 a -- 840 <200 <50 <50 <50 -- -- 26.36 0.00 72.58
<br /> 12/25/99 8,150 10,700 1,020 4,750 72,900 a -- 210 <20 <5 <5 <5 <5 <5 27.66 0.00 71.28
<br /> 04/06/00 3,300 2,100 130 3,800 24,000 b -- 320 49 <2.0 <2.0 <2.0 2.9 <2.0 25.87 0.00 73.07
<br /> MW-2
<br /> 98.50 12/09/98 49730 5,470 561 3,300 45,800 a -- 350 <400 <100 <100 <100 -- -- 25.90 0.00 72.60
<br /> 12/25/99 3,840 2,930 230 19210 19,800 a -- 300 <20 <5 <5 <5 <5 <5 27.19 0.00 71.31
<br /> 04/06/00 8,100 5,400 680 4,100 42,000 b -- 850 <100 <10 <10 <10 15 <10 25.42 0.00 73.08
<br /> MW-3
<br /> 99.00 12/09/98 913 1,530 165 1,360 17,800 a -- 43 <20 <5.0 <5.0 <5.0 -- -- 26.46 0.00 72.54
<br /> 12/25/99 1,750 1,170 184 698 10,300 a -- <5 <20 <5 <5 <5 <5 <5 27.78 0.00 71.22
<br /> 04/06/00 1,200 1,700 480 2,800 24,000 b -- 20 6.8 <0.50 <0.50 <0.50 2.7 <1.0 26.03 0.00 72.97
<br /> MW-4
<br /> 100.00 12/09/98 3,560 4,980 559 49070 42,500 a -- 170 <200 <50 <50 <50 -- -- 27.38 0.00 72.62
<br /> 12/25/99 1,060 714 207 768 7,120 a -- 110 <20 <5 <5 <5 <5 <5 28.69 0.00 71.31
<br /> 04/06/00 2,300 1 2,000 1 270 1 19900 16,000 b -- 120 <20 <2.0 <2.0 <2.0 3.1 <2.0 26.93 0.00 73.07
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<br /> File aive k\Tables\R62-00.els
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