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r <br /> Table 1 Groundwater Elevations <br /> 22-Dec-99 27-Jan-00 20-A r-00 26-Yui-00 21-Nov-00 <br /> Elevation Depth to Elevation Depth to Elevation Depth to Elevation Depth to Elevation Depth to Elevation <br /> -Sample ID (MSL) Water SL Water MSL Water MSL Water SL Water SL <br />. MW-1 13 02' 2992 -16 90' 2870 -1568 2562 -1260 28 00' -14 98' 2921 -1619 <br />. MW-2 1342 NA NA NA NA 25 99' -12 57' 28 25' -14 83' 286 -15 18 <br /> MW-3 12 84' 3040- -1756- 2860- -15'76- 25 55' -1271' 27 90' -15 06' 291 -1626 <br /> NA NA NA NA NA NA NA NA 2865 .163 <br /> - <br /> Groundwater elevations are shown graphically in Figure 4 <br /> r <br />• 3.2 Groundwater Sample Analysis Results <br /> r <br /> The groundwater was sampled on 21 November 2000 The results, found in Table 2 below, <br /> r indicate an increase in TPH-Gasoline and motor oils contamination in MW-2 while a decrease of <br /> BETX is evident The diesel contamination in MW-3 is no longer evident and the diesel <br /> contamination in MW-1 has decreased significantly MW-1 no longer shows ethyl benzene or <br /> r total xylenes contamination <br /> r <br /> r The very high level of oil 1n MW-2 is probably due to contamination of the sample from floating <br /> oil in thus well Used motor oil should be relatively insoluble in water <br /> Table 2 Groundwater Sample Results from 21 November 2000 <br /> Sample to TPH- TPH- Motor MTBE 2 1 Oxygenates Benzene Ethyl Total <br /> r Gasolinel Diese14 011s3 Toluene Benzenex Xylenesz <br /> r MW-1 ND 93 ND ND ND ND ND ND ND <br /> r MW-2 67 ND 170000 0.0043 0 011.1) 0 008 0.012 ND 00077 <br /> MW-3 ND ND ND ND ND ND ND ND ND <br />. MW-4 76 ND ND ND 0.99 3.2 4.2 0.81 2.8 <br /> Notes All results shown in ppm <br /> 'Detection limits for analyses on this sample were 0 05 ppm <br /> 2Detection limits for analyses on this sample were 0 0005 ppm <br />. 3Detection limits for analyses on this sample were 1 ppm <br /> 4Diesel detection limit 0 5 ppm <br /> r ')Oxygenates referenced are DIPE <br /> ND=Not detected at or above the indicated laboratory detection limit <br /> r <br /> r Groundwater grab samples were taken on 5 October 2000 for bore holes B-6 and B-7 (Report of <br /> Investigation dated 23 January 2001) The results, listed 1n Table 3 below, indicate <br /> r <br /> Environeenng,Inc Project No 01-00109 Page 4 <br /> r <br />