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TABLE 3
<br /> QUARTERLY MONITORING GROUNDWATER DATA
<br /> Beacon Station No. 474
<br /> Well Date TPHg B T E X Depth to TOC GW
<br /> Number ugLL u ugIL ugfL 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-1 A
<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 oomment
<br /> 08/30/99 58 <0.50 <0.50 <0.50 <0.50 57.68 -31 L0 no comment
<br /> 12/10/99 140 <0,50 <0.50 <0.50 @50 57.49 -30.91 no oommcnt
<br /> 03/03/00 75 <0.50 <0.50 <0.50 <0.50 56.54 -29.96 no odor/no sheen
<br /> MW-10 10/26/99 420 0.65 0.94 <6.50 0.88 57.31 25.90 -31.41 no odor/no sheen
<br /> Oct 0 03/03/00 1,100 1.1 <0.50 40.50 <0.50 55.32 -29.42 no odorino shccn
<br /> interval
<br /> 50.5-70.5
<br /> MW-11 10/26/99 1,600 3.6 0.93 23 1.7 57.72 26,14 -31.58 no odor/no sheen
<br /> Screen 03/03/00 300 0.80 <0.50 0.80 <0.50 55.64 -29.50 no odor/no shun
<br /> interval
<br /> 50'-70'
<br /> MW-12 10/26/99 81,000 3,200 17,000 3,100 17,000 53.51 no odor/no she=
<br /> Screen 03/03/00 70,000 2,800 13,000 2,000 11,000 55.63 no odor/no sheen
<br /> hkterval
<br /> 84'-89'
<br /> AS-1 I M6/99 1,700 100 7.7 26 27 60.94 no odor/no sheen
<br /> screen 03/03/00 <200 8 X1.0 3.2 <2.0 55.51 no odor/no sheen
<br /> laterval
<br /> 70.5'-75.5'
<br /> VW-1 09/08/98 170,000 36,000 47,000 3,300 24,000 58.88 NM no strong odor/no sheen
<br /> screen 12/30/98 190,000 34,000 49,000 3,300 24,000 57.10 no Petro].odor 1 no sheen
<br /> 03/25/99 260,000 37,000 55,000 4,800 32,000 55.05 no no cornneni
<br /> 50'-65' 06/03/99 120,000 20,000 26,000 3,500 23,000 54.19 no no comment
<br /> 08/30/99 130,000 25,000 46,000 3,900 25,000 56.28 no no comment
<br /> 12/10/99 200,000 22,000 35,000 3,300 23,000 56.42 no no comment
<br /> 03/03/00 180,000 23,000 36,000 2,500 18,000 55.63 no no odorino sheen
<br /> gMmdata,xfs
<br /> 1474.22rpt Page 3 of 4 HORIZON ENVIRONMENTAL INC.
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