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<br /> l Table 1 -Groundwater Monitoring Data
<br /> { Beacon Station No.474
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<br /> 3443 East Main Street,Stockton,California
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<br /> Well Date TPHg B T E X Depth to TOC GW
<br /> Number u /L u u u u GW Elevation Elevation Comments
<br /> MW-9 03/31/98 <50 <0.50 <0.50 <0.50 <0.50 62.59 26.58 -36.01 reported as MW-1A
<br /> screen 06/10/98 66 <0.50 <0.50 <0.50 <0.50 59.91 -33.33 reported as MW-1A
<br /> interval 09/08/98 <50 <0.50 <0.50 <0.50 <0.50 59.99 -33.41 no odor/no sheen
<br /> 56'-76' 12/30/98 <50 <0.50 <0.50 <0.50 <0.50 58.01 -31.43 no odor/no sheen
<br /> 03/25/99 <50 <0.50 <0.50 <0.50 <0.50 56.02 -29.44 no comment
<br /> 06/03/99 92 <0.50 <0.50 1.0 5.7 55.43 -28.85 no continent
<br /> 08/30/99 58 <0.50 <0.50 <0.50 <0.50 57.68 -31.10 no continent
<br /> VW-1 09/08/98 170,000 36,000 47,000 3,300 24,000 58.88 NM nc strong odor 1 no sheen
<br /> screen 12/30/98 190,000 34,000 49,000 3,300 24,000 57.10 nc Petrol. odor/no sheen
<br /> interval 03/25/99 260,000 37,000 55,000 4,800 32,000 55.05 nc no comment
<br /> 50'-65' 06/03/99 120,000 20,000 26,000 3,500 23,000 54.19 nc no comment
<br /> 08/30/99 130,000 . 251000 46,000 3,900 25,000 56.28 nc no comment
<br /> VW-4 09/08/98 86,000 19,000 6,900 3,100 20,000 59.10 NM nc strong odor/no sheen
<br /> screen 12/30/98 79,000 29,000 1,600 3,700 16,000 57.28 nc Petrol.odor/no sheen
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<br /> interval 03/25/99 89,000 14,000 2,700 3,200 13,000 55.23 nc no comment
<br /> 50'-65' 06/03/99 39,000 10,000 1,600 2,900 11,000 54.44 ne no comment
<br /> 000/99L501900 1 9,200 1,500 3,500 12,0001 56.53 nc no comment
<br /> Notes:
<br /> TPIIg= total petroletuu hydrocarbons as gasoline na=not analyzed
<br /> B=benzene ns=not sampled
<br /> 1'=toluene NM=Not Measured
<br /> Li=ethylbenzene nc=Prot calculoted
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<br /> 990MTable.03 Page 3 of 3 HORIZON ENVIRONMENTAL.INC.
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